Merge remote-tracking branch 'origin/feat/calculator-options' into feat/calculator-options

# Conflicts:
#	frontend/src/app/features/checkout/checkout.component.html

backend/src/main/java/com/printcalculator/controller/CustomQuoteRequestController.java

@@ -2,519 +2,46 @@ package com.printcalculator.controller;
 
 import com.printcalculator.dto.QuoteRequestDto;
 import com.printcalculator.entity.CustomQuoteRequest;
-import com.printcalculator.entity.CustomQuoteRequestAttachment;
+import com.printcalculator.service.request.CustomQuoteRequestControllerService;
-import com.printcalculator.repository.CustomQuoteRequestAttachmentRepository;
-import com.printcalculator.repository.CustomQuoteRequestRepository;
-import com.printcalculator.service.storage.ClamAVService;
-import com.printcalculator.service.email.EmailNotificationService;
 import jakarta.validation.Valid;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.http.HttpStatus;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.transaction.annotation.Transactional;
-import org.springframework.util.StringUtils;
+import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.*;
+import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.server.ResponseStatusException;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestPart;
+import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.multipart.MultipartFile;
 
 import java.io.IOException;
-import java.io.InputStream;
-import java.nio.file.Files;
-import java.nio.file.InvalidPathException;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.nio.file.StandardCopyOption;
-import java.time.OffsetDateTime;
-import java.time.Year;
-import java.time.format.DateTimeFormatter;
-import java.time.format.FormatStyle;
-import java.util.HashMap;
 import java.util.List;
-import java.util.Locale;
-import java.util.Map;
-import java.util.Set;
 import java.util.UUID;
-import java.util.regex.Pattern;
 
 @RestController
 @RequestMapping("/api/custom-quote-requests")
 public class CustomQuoteRequestController {
 
-    private static final Logger logger = LoggerFactory.getLogger(CustomQuoteRequestController.class);
+    private final CustomQuoteRequestControllerService customQuoteRequestControllerService;
-    private final CustomQuoteRequestRepository requestRepo;
-    private final CustomQuoteRequestAttachmentRepository attachmentRepo;
-    private final ClamAVService clamAVService;
-    private final EmailNotificationService emailNotificationService;
 
-    @Value("${app.mail.contact-request.admin.enabled:true}")
+    public CustomQuoteRequestController(CustomQuoteRequestControllerService customQuoteRequestControllerService) {
-    private boolean contactRequestAdminMailEnabled;
+        this.customQuoteRequestControllerService = customQuoteRequestControllerService;
-
-    @Value("${app.mail.contact-request.admin.address:infog@3d-fab.ch}")
-    private String contactRequestAdminMailAddress;
-
-    @Value("${app.mail.contact-request.customer.enabled:true}")
-    private boolean contactRequestCustomerMailEnabled;
-
-    // TODO: Inject Storage Service
-    private static final Path STORAGE_ROOT = Paths.get("storage_requests").toAbsolutePath().normalize();
-    private static final Pattern SAFE_EXTENSION_PATTERN = Pattern.compile("^[a-z0-9]{1,10}$");
-    private static final Set<String> FORBIDDEN_COMPRESSED_EXTENSIONS = Set.of(
-            "zip", "rar", "7z", "tar", "gz", "tgz", "bz2", "tbz2", "xz", "txz", "zst"
-    );
-    private static final Set<String> FORBIDDEN_COMPRESSED_MIME_TYPES = Set.of(
-            "application/zip",
-            "application/x-zip-compressed",
-            "application/x-rar-compressed",
-            "application/vnd.rar",
-            "application/x-7z-compressed",
-            "application/gzip",
-            "application/x-gzip",
-            "application/x-tar",
-            "application/x-bzip2",
-            "application/x-xz",
-            "application/zstd",
-            "application/x-zstd"
-    );
-
-    public CustomQuoteRequestController(CustomQuoteRequestRepository requestRepo,
-                                        CustomQuoteRequestAttachmentRepository attachmentRepo,
-                                        ClamAVService clamAVService,
-                                        EmailNotificationService emailNotificationService) {
-        this.requestRepo = requestRepo;
-        this.attachmentRepo = attachmentRepo;
-        this.clamAVService = clamAVService;
-        this.emailNotificationService = emailNotificationService;
     }
 
-    // 1. Create Custom Quote Request
     @PostMapping(consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
     @Transactional
     public ResponseEntity<CustomQuoteRequest> createCustomQuoteRequest(
             @Valid @RequestPart("request") QuoteRequestDto requestDto,
             @RequestPart(value = "files", required = false) List<MultipartFile> files
     ) throws IOException {
-        if (!requestDto.isAcceptTerms() || !requestDto.isAcceptPrivacy()) {
+        return ResponseEntity.ok(customQuoteRequestControllerService.createCustomQuoteRequest(requestDto, files));
-            throw new ResponseStatusException(
-                    HttpStatus.BAD_REQUEST,
-                    "Accettazione Termini e Privacy obbligatoria."
-            );
-        }
-        String language = normalizeLanguage(requestDto.getLanguage());
-        
-        // 1. Create Request
-        CustomQuoteRequest request = new CustomQuoteRequest();
-        request.setRequestType(requestDto.getRequestType());
-        request.setCustomerType(requestDto.getCustomerType());
-        request.setEmail(requestDto.getEmail());
-        request.setPhone(requestDto.getPhone());
-        request.setName(requestDto.getName());
-        request.setCompanyName(requestDto.getCompanyName());
-        request.setContactPerson(requestDto.getContactPerson());
-        request.setMessage(requestDto.getMessage());
-        request.setStatus("PENDING");
-        request.setCreatedAt(OffsetDateTime.now());
-        request.setUpdatedAt(OffsetDateTime.now());
-        
-        request = requestRepo.save(request);
-        
-        // 2. Handle Attachments
-        int attachmentsCount = 0;
-        if (files != null && !files.isEmpty()) {
-            if (files.size() > 15) {
-                throw new IOException("Too many files. Max 15 allowed.");
-            }
-            
-            for (MultipartFile file : files) {
-                if (file.isEmpty()) continue;
-
-                if (isCompressedFile(file)) {
-                    throw new ResponseStatusException(
-                            HttpStatus.BAD_REQUEST,
-                            "Compressed files are not allowed."
-                    );
-                }
-                
-                // Scan for virus
-                clamAVService.scan(file.getInputStream());
-                
-                CustomQuoteRequestAttachment attachment = new CustomQuoteRequestAttachment();
-                attachment.setRequest(request);
-                attachment.setOriginalFilename(file.getOriginalFilename());
-                attachment.setMimeType(file.getContentType());
-                attachment.setFileSizeBytes(file.getSize());
-                attachment.setCreatedAt(OffsetDateTime.now());
-                
-                // Generate path
-                UUID fileUuid = UUID.randomUUID();
-                String storedFilename = fileUuid + ".upload";
-                
-                // Note: We don't have attachment ID yet.
-                // We'll save attachment first to get ID.
-                attachment.setStoredFilename(storedFilename);
-                attachment.setStoredRelativePath("PENDING");
-                
-                attachment = attachmentRepo.save(attachment);
-                
-                Path relativePath = Path.of(
-                        "quote-requests",
-                        request.getId().toString(),
-                        "attachments",
-                        attachment.getId().toString(),
-                        storedFilename
-                );
-                attachment.setStoredRelativePath(relativePath.toString());
-                attachmentRepo.save(attachment);
-                
-                // Save file to disk
-                Path absolutePath = resolveWithinStorageRoot(relativePath);
-                Files.createDirectories(absolutePath.getParent());
-                try (InputStream inputStream = file.getInputStream()) {
-                    Files.copy(inputStream, absolutePath, StandardCopyOption.REPLACE_EXISTING);
-                }
-                attachmentsCount++;
-            }
-        }
-
-        sendAdminContactRequestNotification(request, attachmentsCount);
-        sendCustomerContactRequestConfirmation(request, attachmentsCount, language);
-
-        return ResponseEntity.ok(request);
     }
-    
+
-    // 2. Get Request
     @GetMapping("/{id}")
     public ResponseEntity<CustomQuoteRequest> getCustomQuoteRequest(@PathVariable UUID id) {
-        return requestRepo.findById(id)
+        return customQuoteRequestControllerService.getCustomQuoteRequest(id)
                 .map(ResponseEntity::ok)
                 .orElse(ResponseEntity.notFound().build());
     }
-    
-    // Helper
-    private String getExtension(String filename) {
-        if (filename == null) return "dat";
-        String cleaned = StringUtils.cleanPath(filename);
-        if (cleaned.contains("..")) {
-            return "dat";
-        }
-        int i = cleaned.lastIndexOf('.');
-        if (i > 0 && i < cleaned.length() - 1) {
-            String ext = cleaned.substring(i + 1).toLowerCase(Locale.ROOT);
-            if (SAFE_EXTENSION_PATTERN.matcher(ext).matches()) {
-                return ext;
-            }
-        }
-        return "dat";
-    }
-
-    private boolean isCompressedFile(MultipartFile file) {
-        String ext = getExtension(file.getOriginalFilename());
-        if (FORBIDDEN_COMPRESSED_EXTENSIONS.contains(ext)) {
-            return true;
-        }
-        String mime = file.getContentType();
-        return mime != null && FORBIDDEN_COMPRESSED_MIME_TYPES.contains(mime.toLowerCase());
-    }
-
-    private Path resolveWithinStorageRoot(Path relativePath) {
-        try {
-            Path normalizedRelative = relativePath.normalize();
-            if (normalizedRelative.isAbsolute()) {
-                throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Invalid attachment path");
-            }
-            Path absolutePath = STORAGE_ROOT.resolve(normalizedRelative).normalize();
-            if (!absolutePath.startsWith(STORAGE_ROOT)) {
-                throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Invalid attachment path");
-            }
-            return absolutePath;
-        } catch (InvalidPathException e) {
-            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Invalid attachment path");
-        }
-    }
-
-    private void sendAdminContactRequestNotification(CustomQuoteRequest request, int attachmentsCount) {
-        if (!contactRequestAdminMailEnabled) {
-            return;
-        }
-        if (contactRequestAdminMailAddress == null || contactRequestAdminMailAddress.isBlank()) {
-            logger.warn("Contact request admin notification enabled but no admin address configured.");
-            return;
-        }
-
-        Map<String, Object> templateData = new HashMap<>();
-        templateData.put("requestId", request.getId());
-        templateData.put("createdAt", request.getCreatedAt());
-        templateData.put("requestType", safeValue(request.getRequestType()));
-        templateData.put("customerType", safeValue(request.getCustomerType()));
-        templateData.put("name", safeValue(request.getName()));
-        templateData.put("companyName", safeValue(request.getCompanyName()));
-        templateData.put("contactPerson", safeValue(request.getContactPerson()));
-        templateData.put("email", safeValue(request.getEmail()));
-        templateData.put("phone", safeValue(request.getPhone()));
-        templateData.put("message", safeValue(request.getMessage()));
-        templateData.put("attachmentsCount", attachmentsCount);
-        templateData.put("currentYear", Year.now().getValue());
-
-        emailNotificationService.sendEmail(
-                contactRequestAdminMailAddress,
-                "Nuova richiesta di contatto #" + request.getId(),
-                "contact-request-admin",
-                templateData
-        );
-    }
-
-    private void sendCustomerContactRequestConfirmation(CustomQuoteRequest request, int attachmentsCount, String language) {
-        if (!contactRequestCustomerMailEnabled) {
-            return;
-        }
-        if (request.getEmail() == null || request.getEmail().isBlank()) {
-            logger.warn("Contact request confirmation skipped: missing customer email for request {}", request.getId());
-            return;
-        }
-
-        Map<String, Object> templateData = new HashMap<>();
-        templateData.put("requestId", request.getId());
-        templateData.put(
-                "createdAt",
-                request.getCreatedAt().format(
-                        DateTimeFormatter.ofLocalizedDateTime(FormatStyle.MEDIUM).withLocale(localeForLanguage(language))
-                )
-        );
-        templateData.put("recipientName", resolveRecipientName(request, language));
-        templateData.put("requestType", localizeRequestType(request.getRequestType(), language));
-        templateData.put("customerType", localizeCustomerType(request.getCustomerType(), language));
-        templateData.put("name", safeValue(request.getName()));
-        templateData.put("companyName", safeValue(request.getCompanyName()));
-        templateData.put("contactPerson", safeValue(request.getContactPerson()));
-        templateData.put("email", safeValue(request.getEmail()));
-        templateData.put("phone", safeValue(request.getPhone()));
-        templateData.put("message", safeValue(request.getMessage()));
-        templateData.put("attachmentsCount", attachmentsCount);
-        templateData.put("currentYear", Year.now().getValue());
-        String subject = applyCustomerContactRequestTexts(templateData, language, request.getId());
-
-        emailNotificationService.sendEmail(
-                request.getEmail(),
-                subject,
-                "contact-request-customer",
-                templateData
-        );
-    }
-
-    private String applyCustomerContactRequestTexts(
-            Map<String, Object> templateData,
-            String language,
-            UUID requestId
-    ) {
-        return switch (language) {
-            case "en" -> {
-                templateData.put("emailTitle", "Contact request received");
-                templateData.put("headlineText", "We received your contact request");
-                templateData.put("greetingText", "Hi " + templateData.get("recipientName") + ",");
-                templateData.put("introText", "Thank you for contacting us. Our team will reply as soon as possible.");
-                templateData.put("requestIdHintText", "Please keep this request ID for future order references:");
-                templateData.put("detailsTitleText", "Request details");
-                templateData.put("labelRequestId", "Request ID");
-                templateData.put("labelDate", "Date");
-                templateData.put("labelRequestType", "Request type");
-                templateData.put("labelCustomerType", "Customer type");
-                templateData.put("labelName", "Name");
-                templateData.put("labelCompany", "Company");
-                templateData.put("labelContactPerson", "Contact person");
-                templateData.put("labelEmail", "Email");
-                templateData.put("labelPhone", "Phone");
-                templateData.put("labelMessage", "Message");
-                templateData.put("labelAttachments", "Attachments");
-                templateData.put("supportText", "If you need help, reply to this email.");
-                templateData.put("footerText", "Automated request-receipt confirmation from 3D-Fab.");
-                yield "We received your contact request #" + requestId + " - 3D-Fab";
-            }
-            case "de" -> {
-                templateData.put("emailTitle", "Kontaktanfrage erhalten");
-                templateData.put("headlineText", "Wir haben Ihre Kontaktanfrage erhalten");
-                templateData.put("greetingText", "Hallo " + templateData.get("recipientName") + ",");
-                templateData.put("introText", "Vielen Dank fuer Ihre Anfrage. Unser Team antwortet Ihnen so schnell wie moeglich.");
-                templateData.put("requestIdHintText", "Bitte speichern Sie diese Anfrage-ID fuer zukuenftige Bestellreferenzen:");
-                templateData.put("detailsTitleText", "Anfragedetails");
-                templateData.put("labelRequestId", "Anfrage-ID");
-                templateData.put("labelDate", "Datum");
-                templateData.put("labelRequestType", "Anfragetyp");
-                templateData.put("labelCustomerType", "Kundentyp");
-                templateData.put("labelName", "Name");
-                templateData.put("labelCompany", "Firma");
-                templateData.put("labelContactPerson", "Kontaktperson");
-                templateData.put("labelEmail", "E-Mail");
-                templateData.put("labelPhone", "Telefon");
-                templateData.put("labelMessage", "Nachricht");
-                templateData.put("labelAttachments", "Anhaenge");
-                templateData.put("supportText", "Wenn Sie Hilfe brauchen, antworten Sie auf diese E-Mail.");
-                templateData.put("footerText", "Automatische Bestaetigung des Anfrageeingangs von 3D-Fab.");
-                yield "Wir haben Ihre Kontaktanfrage erhalten #" + requestId + " - 3D-Fab";
-            }
-            case "fr" -> {
-                templateData.put("emailTitle", "Demande de contact recue");
-                templateData.put("headlineText", "Nous avons recu votre demande de contact");
-                templateData.put("greetingText", "Bonjour " + templateData.get("recipientName") + ",");
-                templateData.put("introText", "Merci pour votre message. Notre equipe vous repondra des que possible.");
-                templateData.put("requestIdHintText", "Veuillez conserver cet ID de demande pour vos futures references de commande :");
-                templateData.put("detailsTitleText", "Details de la demande");
-                templateData.put("labelRequestId", "ID de demande");
-                templateData.put("labelDate", "Date");
-                templateData.put("labelRequestType", "Type de demande");
-                templateData.put("labelCustomerType", "Type de client");
-                templateData.put("labelName", "Nom");
-                templateData.put("labelCompany", "Entreprise");
-                templateData.put("labelContactPerson", "Contact");
-                templateData.put("labelEmail", "Email");
-                templateData.put("labelPhone", "Telephone");
-                templateData.put("labelMessage", "Message");
-                templateData.put("labelAttachments", "Pieces jointes");
-                templateData.put("supportText", "Si vous avez besoin d'aide, repondez a cet email.");
-                templateData.put("footerText", "Confirmation automatique de reception de demande par 3D-Fab.");
-                yield "Nous avons recu votre demande de contact #" + requestId + " - 3D-Fab";
-            }
-            default -> {
-                templateData.put("emailTitle", "Richiesta di contatto ricevuta");
-                templateData.put("headlineText", "Abbiamo ricevuto la tua richiesta di contatto");
-                templateData.put("greetingText", "Ciao " + templateData.get("recipientName") + ",");
-                templateData.put("introText", "Grazie per averci contattato. Il nostro team ti rispondera' il prima possibile.");
-                templateData.put("requestIdHintText", "Conserva questo ID richiesta per i futuri riferimenti d'ordine:");
-                templateData.put("detailsTitleText", "Dettagli richiesta");
-                templateData.put("labelRequestId", "ID richiesta");
-                templateData.put("labelDate", "Data");
-                templateData.put("labelRequestType", "Tipo richiesta");
-                templateData.put("labelCustomerType", "Tipo cliente");
-                templateData.put("labelName", "Nome");
-                templateData.put("labelCompany", "Azienda");
-                templateData.put("labelContactPerson", "Contatto");
-                templateData.put("labelEmail", "Email");
-                templateData.put("labelPhone", "Telefono");
-                templateData.put("labelMessage", "Messaggio");
-                templateData.put("labelAttachments", "Allegati");
-                templateData.put("supportText", "Se hai bisogno, rispondi direttamente a questa email.");
-                templateData.put("footerText", "Conferma automatica di ricezione richiesta da 3D-Fab.");
-                yield "Abbiamo ricevuto la tua richiesta di contatto #" + requestId + " - 3D-Fab";
-            }
-        };
-    }
-
-    private String localizeRequestType(String requestType, String language) {
-        if (requestType == null || requestType.isBlank()) {
-            return "-";
-        }
-
-        String normalized = requestType.trim().toLowerCase(Locale.ROOT);
-        return switch (language) {
-            case "en" -> switch (normalized) {
-                case "custom", "print_service" -> "Custom part request";
-                case "series" -> "Series production request";
-                case "consult", "design_service" -> "Consultation request";
-                case "question" -> "General question";
-                default -> requestType;
-            };
-            case "de" -> switch (normalized) {
-                case "custom", "print_service" -> "Anfrage fuer Einzelteil";
-                case "series" -> "Anfrage fuer Serienproduktion";
-                case "consult", "design_service" -> "Beratungsanfrage";
-                case "question" -> "Allgemeine Frage";
-                default -> requestType;
-            };
-            case "fr" -> switch (normalized) {
-                case "custom", "print_service" -> "Demande de piece personnalisee";
-                case "series" -> "Demande de production en serie";
-                case "consult", "design_service" -> "Demande de conseil";
-                case "question" -> "Question generale";
-                default -> requestType;
-            };
-            default -> switch (normalized) {
-                case "custom", "print_service" -> "Richiesta pezzo personalizzato";
-                case "series" -> "Richiesta produzione in serie";
-                case "consult", "design_service" -> "Richiesta consulenza";
-                case "question" -> "Domanda generale";
-                default -> requestType;
-            };
-        };
-    }
-
-    private String localizeCustomerType(String customerType, String language) {
-        if (customerType == null || customerType.isBlank()) {
-            return "-";
-        }
-        String normalized = customerType.trim().toLowerCase(Locale.ROOT);
-        return switch (language) {
-            case "en" -> switch (normalized) {
-                case "private" -> "Private";
-                case "business" -> "Business";
-                default -> customerType;
-            };
-            case "de" -> switch (normalized) {
-                case "private" -> "Privat";
-                case "business" -> "Unternehmen";
-                default -> customerType;
-            };
-            case "fr" -> switch (normalized) {
-                case "private" -> "Prive";
-                case "business" -> "Entreprise";
-                default -> customerType;
-            };
-            default -> switch (normalized) {
-                case "private" -> "Privato";
-                case "business" -> "Azienda";
-                default -> customerType;
-            };
-        };
-    }
-
-    private Locale localeForLanguage(String language) {
-        return switch (language) {
-            case "en" -> Locale.ENGLISH;
-            case "de" -> Locale.GERMAN;
-            case "fr" -> Locale.FRENCH;
-            default -> Locale.ITALIAN;
-        };
-    }
-
-    private String normalizeLanguage(String language) {
-        if (language == null || language.isBlank()) {
-            return "it";
-        }
-        String normalized = language.toLowerCase(Locale.ROOT).trim();
-        if (normalized.startsWith("en")) {
-            return "en";
-        }
-        if (normalized.startsWith("de")) {
-            return "de";
-        }
-        if (normalized.startsWith("fr")) {
-            return "fr";
-        }
-        return "it";
-    }
-
-    private String resolveRecipientName(CustomQuoteRequest request, String language) {
-        if (request.getName() != null && !request.getName().isBlank()) {
-            return request.getName().trim();
-        }
-        if (request.getContactPerson() != null && !request.getContactPerson().isBlank()) {
-            return request.getContactPerson().trim();
-        }
-        if (request.getCompanyName() != null && !request.getCompanyName().isBlank()) {
-            return request.getCompanyName().trim();
-        }
-        return switch (language) {
-            case "en" -> "customer";
-            case "de" -> "Kunde";
-            case "fr" -> "client";
-            default -> "cliente";
-        };
-    }
-
-    private String safeValue(String value) {
-        if (value == null || value.isBlank()) {
-            return "-";
-        }
-        return value;
-    }
 }

backend/src/main/java/com/printcalculator/controller/OptionsController.java

@@ -12,8 +12,10 @@ import com.printcalculator.repository.FilamentVariantRepository;
 import com.printcalculator.repository.MaterialOrcaProfileMapRepository;
 import com.printcalculator.repository.NozzleOptionRepository;
 import com.printcalculator.repository.PrinterMachineRepository;
+import com.printcalculator.repository.PrinterMachineProfileRepository;
 import com.printcalculator.service.NozzleLayerHeightPolicyService;
 import com.printcalculator.service.OrcaProfileResolver;
+import com.printcalculator.service.ProfileManager;
 import org.springframework.http.ResponseEntity;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -22,8 +24,11 @@ import org.springframework.web.bind.annotation.RestController;
 
 import java.math.BigDecimal;
 import java.util.Comparator;
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.LinkedHashSet;
 import java.util.Set;
 import java.util.stream.Collectors;
 
@@ -34,23 +39,29 @@ public class OptionsController {
     private final FilamentVariantRepository variantRepo;
     private final NozzleOptionRepository nozzleRepo;
     private final PrinterMachineRepository printerMachineRepo;
+    private final PrinterMachineProfileRepository printerMachineProfileRepo;
     private final MaterialOrcaProfileMapRepository materialOrcaMapRepo;
     private final OrcaProfileResolver orcaProfileResolver;
+    private final ProfileManager profileManager;
     private final NozzleLayerHeightPolicyService nozzleLayerHeightPolicyService;
 
     public OptionsController(FilamentMaterialTypeRepository materialRepo,
                              FilamentVariantRepository variantRepo,
                              NozzleOptionRepository nozzleRepo,
                              PrinterMachineRepository printerMachineRepo,
+                             PrinterMachineProfileRepository printerMachineProfileRepo,
                              MaterialOrcaProfileMapRepository materialOrcaMapRepo,
                              OrcaProfileResolver orcaProfileResolver,
+                             ProfileManager profileManager,
                              NozzleLayerHeightPolicyService nozzleLayerHeightPolicyService) {
         this.materialRepo = materialRepo;
         this.variantRepo = variantRepo;
         this.nozzleRepo = nozzleRepo;
         this.printerMachineRepo = printerMachineRepo;
+        this.printerMachineProfileRepo = printerMachineProfileRepo;
         this.materialOrcaMapRepo = materialOrcaMapRepo;
         this.orcaProfileResolver = orcaProfileResolver;
+        this.profileManager = profileManager;
         this.nozzleLayerHeightPolicyService = nozzleLayerHeightPolicyService;
     }
 
@@ -116,8 +127,27 @@ public class OptionsController {
                 new OptionsResponse.InfillPatternOption("cubic", "Cubic")
         );
 
+        PrinterMachine targetMachine = resolveMachine(printerMachineId);
+
+        Set<BigDecimal> supportedMachineNozzles = targetMachine != null
+                ? printerMachineProfileRepo.findByPrinterMachineAndIsActiveTrue(targetMachine).stream()
+                .map(PrinterMachineProfile::getNozzleDiameterMm)
+                .filter(v -> v != null)
+                .map(nozzleLayerHeightPolicyService::normalizeNozzle)
+                .collect(Collectors.toCollection(LinkedHashSet::new))
+                : Set.of();
+
+        boolean restrictNozzlesByMachineProfile = !supportedMachineNozzles.isEmpty();
+
         List<OptionsResponse.NozzleOptionDTO> nozzles = nozzleRepo.findAll().stream()
                 .filter(n -> Boolean.TRUE.equals(n.getIsActive()))
+                .filter(n -> {
+                    if (!restrictNozzlesByMachineProfile) {
+                        return true;
+                    }
+                    BigDecimal normalized = nozzleLayerHeightPolicyService.normalizeNozzle(n.getNozzleDiameterMm());
+                    return normalized != null && supportedMachineNozzles.contains(normalized);
+                })
                 .sorted(Comparator.comparing(NozzleOption::getNozzleDiameterMm))
                 .map(n -> new OptionsResponse.NozzleOptionDTO(
                         n.getNozzleDiameterMm().doubleValue(),
@@ -129,16 +159,62 @@ public class OptionsController {
                 .toList();
 
         Map<BigDecimal, List<BigDecimal>> rulesByNozzle = nozzleLayerHeightPolicyService.getActiveRulesByNozzle();
+        Set<BigDecimal> visibleNozzlesFromOptions = nozzles.stream()
+                .map(OptionsResponse.NozzleOptionDTO::value)
+                .map(BigDecimal::valueOf)
+                .map(nozzleLayerHeightPolicyService::normalizeNozzle)
+                .filter(v -> v != null)
+                .collect(Collectors.toCollection(LinkedHashSet::new));
+
+        Map<BigDecimal, List<BigDecimal>> effectiveRulesByNozzle = new LinkedHashMap<>();
+        for (BigDecimal nozzle : visibleNozzlesFromOptions) {
+            List<BigDecimal> policyLayers = rulesByNozzle.getOrDefault(nozzle, List.of());
+            List<BigDecimal> compatibleProcessLayers = resolveCompatibleProcessLayers(targetMachine, nozzle);
+            List<BigDecimal> effective = mergePolicyAndProcessLayers(policyLayers, compatibleProcessLayers);
+            if (!effective.isEmpty()) {
+                effectiveRulesByNozzle.put(nozzle, effective);
+            }
+        }
+        if (effectiveRulesByNozzle.isEmpty()) {
+            for (BigDecimal nozzle : visibleNozzlesFromOptions) {
+                List<BigDecimal> policyLayers = rulesByNozzle.getOrDefault(nozzle, List.of());
+                if (!policyLayers.isEmpty()) {
+                    effectiveRulesByNozzle.put(nozzle, policyLayers);
+                }
+            }
+        }
+
+        Set<BigDecimal> visibleNozzles = new LinkedHashSet<>(effectiveRulesByNozzle.keySet());
+        nozzles = nozzles.stream()
+                .filter(option -> {
+                    BigDecimal normalized = nozzleLayerHeightPolicyService.normalizeNozzle(
+                            BigDecimal.valueOf(option.value())
+                    );
+                    return normalized != null && visibleNozzles.contains(normalized);
+                })
+                .toList();
+
         BigDecimal selectedNozzle = nozzleLayerHeightPolicyService.resolveNozzle(
                 nozzleDiameter != null ? BigDecimal.valueOf(nozzleDiameter) : null
         );
-
+        if (!visibleNozzles.isEmpty() && !visibleNozzles.contains(selectedNozzle)) {
-        List<OptionsResponse.LayerHeightOptionDTO> layers = toLayerDtos(rulesByNozzle.getOrDefault(selectedNozzle, List.of()));
+            selectedNozzle = visibleNozzles.iterator().next();
-        if (layers.isEmpty()) {
-            layers = rulesByNozzle.values().stream().findFirst().map(this::toLayerDtos).orElse(List.of());
         }
 
-        List<OptionsResponse.NozzleLayerHeightOptionsDTO> layerHeightsByNozzle = rulesByNozzle.entrySet().stream()
+        List<OptionsResponse.LayerHeightOptionDTO> layers = toLayerDtos(
+                effectiveRulesByNozzle.getOrDefault(selectedNozzle, List.of())
+        );
+        if (layers.isEmpty()) {
+            if (!visibleNozzles.isEmpty()) {
+                BigDecimal fallbackNozzle = visibleNozzles.iterator().next();
+                layers = toLayerDtos(effectiveRulesByNozzle.getOrDefault(fallbackNozzle, List.of()));
+            }
+            if (layers.isEmpty()) {
+                layers = rulesByNozzle.values().stream().findFirst().map(this::toLayerDtos).orElse(List.of());
+            }
+        }
+
+        List<OptionsResponse.NozzleLayerHeightOptionsDTO> layerHeightsByNozzle = effectiveRulesByNozzle.entrySet().stream()
                 .map(entry -> new OptionsResponse.NozzleLayerHeightOptionsDTO(
                         entry.getKey().doubleValue(),
                         toLayerDtos(entry.getValue())
@@ -156,13 +232,7 @@ public class OptionsController {
     }
 
     private Set<Long> resolveCompatibleMaterialTypeIds(Long printerMachineId, Double nozzleDiameter) {
-        PrinterMachine machine = null;
+        PrinterMachine machine = resolveMachine(printerMachineId);
-        if (printerMachineId != null) {
-            machine = printerMachineRepo.findById(printerMachineId).orElse(null);
-        }
-        if (machine == null) {
-            machine = printerMachineRepo.findFirstByIsActiveTrue().orElse(null);
-        }
         if (machine == null) {
             return Set.of();
         }
@@ -187,6 +257,17 @@ public class OptionsController {
                 .collect(Collectors.toSet());
     }
 
+    private PrinterMachine resolveMachine(Long printerMachineId) {
+        PrinterMachine machine = null;
+        if (printerMachineId != null) {
+            machine = printerMachineRepo.findById(printerMachineId).orElse(null);
+        }
+        if (machine == null) {
+            machine = printerMachineRepo.findFirstByIsActiveTrue().orElse(null);
+        }
+        return machine;
+    }
+
     private List<OptionsResponse.LayerHeightOptionDTO> toLayerDtos(List<BigDecimal> layers) {
         return layers.stream()
                 .sorted(Comparator.naturalOrder())
@@ -197,6 +278,52 @@ public class OptionsController {
                 .toList();
     }
 
+    private List<BigDecimal> resolveCompatibleProcessLayers(PrinterMachine machine, BigDecimal nozzle) {
+        if (machine == null || nozzle == null) {
+            return List.of();
+        }
+        PrinterMachineProfile profile = orcaProfileResolver.resolveMachineProfile(machine, nozzle).orElse(null);
+        if (profile == null || profile.getOrcaMachineProfileName() == null) {
+            return List.of();
+        }
+        return profileManager.findCompatibleProcessLayers(profile.getOrcaMachineProfileName());
+    }
+
+    private List<BigDecimal> mergePolicyAndProcessLayers(List<BigDecimal> policyLayers,
+                                                         List<BigDecimal> processLayers) {
+        if ((processLayers == null || processLayers.isEmpty())
+                && (policyLayers == null || policyLayers.isEmpty())) {
+            return List.of();
+        }
+
+        if (processLayers == null || processLayers.isEmpty()) {
+            return policyLayers != null ? policyLayers : List.of();
+        }
+
+        if (policyLayers == null || policyLayers.isEmpty()) {
+            return processLayers;
+        }
+
+        Set<BigDecimal> allowedByPolicy = policyLayers.stream()
+                .map(nozzleLayerHeightPolicyService::normalizeLayer)
+                .filter(v -> v != null)
+                .collect(Collectors.toCollection(LinkedHashSet::new));
+
+        List<BigDecimal> intersection = processLayers.stream()
+                .map(nozzleLayerHeightPolicyService::normalizeLayer)
+                .filter(v -> v != null && allowedByPolicy.contains(v))
+                .collect(Collectors.toCollection(ArrayList::new));
+
+        if (!intersection.isEmpty()) {
+            return intersection;
+        }
+
+        return processLayers.stream()
+                .map(nozzleLayerHeightPolicyService::normalizeLayer)
+                .filter(v -> v != null)
+                .collect(Collectors.toCollection(ArrayList::new));
+    }
+
     private String resolveHexColor(FilamentVariant variant) {
         if (variant.getColorHex() != null && !variant.getColorHex().isBlank()) {
             return variant.getColorHex();

backend/src/main/java/com/printcalculator/controller/OrderController.java

@@ -1,146 +1,62 @@
 package com.printcalculator.controller;
 
-import com.printcalculator.dto.*;
+import com.printcalculator.dto.CreateOrderRequest;
-import com.printcalculator.entity.*;
+import com.printcalculator.dto.OrderDto;
-import com.printcalculator.repository.*;
+import com.printcalculator.service.order.OrderControllerService;
-import com.printcalculator.service.payment.InvoicePdfRenderingService;
+import jakarta.validation.Valid;
-import com.printcalculator.service.OrderService;
-import com.printcalculator.service.payment.PaymentService;
-import com.printcalculator.service.payment.QrBillService;
-import com.printcalculator.service.storage.StorageService;
-import com.printcalculator.service.payment.TwintPaymentService;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
-import org.springframework.util.StringUtils;
 import org.springframework.transaction.annotation.Transactional;
-import org.springframework.web.bind.annotation.*;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.multipart.MultipartFile;
-import jakarta.validation.Valid;
 
 import java.io.IOException;
-
-import java.nio.file.InvalidPathException;
-import java.nio.file.Path;
-
-import java.util.List;
-import java.util.UUID;
 import java.util.Map;
-import java.util.HashMap;
+import java.util.UUID;
-import java.util.Base64;
-import java.util.Set;
-import java.util.stream.Collectors;
-import java.net.URI;
-import java.util.Locale;
-import java.util.regex.Pattern;
 
 @RestController
 @RequestMapping("/api/orders")
 public class OrderController {
-    private static final Pattern SAFE_EXTENSION_PATTERN = Pattern.compile("^[a-z0-9]{1,10}$");
-    private static final Set<String> PERSONAL_DATA_REDACTED_STATUSES = Set.of(
-            "IN_PRODUCTION",
-            "SHIPPED",
-            "COMPLETED"
-    );
 
-    private final OrderService orderService;
+    private final OrderControllerService orderControllerService;
-    private final OrderRepository orderRepo;
-    private final OrderItemRepository orderItemRepo;
-    private final QuoteSessionRepository quoteSessionRepo;
-    private final QuoteLineItemRepository quoteLineItemRepo;
-    private final CustomerRepository customerRepo;
-    private final StorageService storageService;
-    private final InvoicePdfRenderingService invoiceService;
-    private final QrBillService qrBillService;
-    private final TwintPaymentService twintPaymentService;
-    private final PaymentService paymentService;
-    private final PaymentRepository paymentRepo;
 
-
+    public OrderController(OrderControllerService orderControllerService) {
-    public OrderController(OrderService orderService,
+        this.orderControllerService = orderControllerService;
-                           OrderRepository orderRepo,
-                           OrderItemRepository orderItemRepo,
-                           QuoteSessionRepository quoteSessionRepo,
-                           QuoteLineItemRepository quoteLineItemRepo,
-                           CustomerRepository customerRepo,
-                           StorageService storageService,
-                           InvoicePdfRenderingService invoiceService,
-                           QrBillService qrBillService,
-                           TwintPaymentService twintPaymentService,
-                           PaymentService paymentService,
-                           PaymentRepository paymentRepo) {
-        this.orderService = orderService;
-        this.orderRepo = orderRepo;
-        this.orderItemRepo = orderItemRepo;
-        this.quoteSessionRepo = quoteSessionRepo;
-        this.quoteLineItemRepo = quoteLineItemRepo;
-        this.customerRepo = customerRepo;
-        this.storageService = storageService;
-        this.invoiceService = invoiceService;
-        this.qrBillService = qrBillService;
-        this.twintPaymentService = twintPaymentService;
-        this.paymentService = paymentService;
-        this.paymentRepo = paymentRepo;
     }
 
-
-    // 1. Create Order from Quote
     @PostMapping("/from-quote/{quoteSessionId}")
     @Transactional
     public ResponseEntity<OrderDto> createOrderFromQuote(
             @PathVariable UUID quoteSessionId,
-            @Valid @RequestBody com.printcalculator.dto.CreateOrderRequest request
+            @Valid @RequestBody CreateOrderRequest request
     ) {
-        Order order = orderService.createOrderFromQuote(quoteSessionId, request);
+        return ResponseEntity.ok(orderControllerService.createOrderFromQuote(quoteSessionId, request));
-        List<OrderItem> items = orderItemRepo.findByOrder_Id(order.getId());
-        return ResponseEntity.ok(convertToDto(order, items));
     }
-    
+
     @PostMapping(value = "/{orderId}/items/{orderItemId}/file", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
     @Transactional
     public ResponseEntity<Void> uploadOrderItemFile(
-        @PathVariable UUID orderId,
+            @PathVariable UUID orderId,
-        @PathVariable UUID orderItemId,
+            @PathVariable UUID orderItemId,
-        @RequestParam("file") MultipartFile file
+            @RequestParam("file") MultipartFile file
     ) throws IOException {
-        
+        boolean uploaded = orderControllerService.uploadOrderItemFile(orderId, orderItemId, file);
-        OrderItem item = orderItemRepo.findById(orderItemId)
+        if (!uploaded) {
-                .orElseThrow(() -> new RuntimeException("OrderItem not found"));
-                
-        if (!item.getOrder().getId().equals(orderId)) {
             return ResponseEntity.badRequest().build();
         }
-        
-        String relativePath = item.getStoredRelativePath();
-        Path destinationRelativePath;
-        if (relativePath == null || relativePath.equals("PENDING")) {
-             String ext = getExtension(file.getOriginalFilename());
-             String storedFilename = UUID.randomUUID() + "." + ext;
-             destinationRelativePath = Path.of("orders", orderId.toString(), "3d-files", orderItemId.toString(), storedFilename);
-             item.setStoredRelativePath(destinationRelativePath.toString());
-             item.setStoredFilename(storedFilename);
-        } else {
-            destinationRelativePath = resolveOrderItemRelativePath(relativePath, orderId, orderItemId);
-            if (destinationRelativePath == null) {
-                return ResponseEntity.badRequest().build();
-            }
-        }
-
-        storageService.store(file, destinationRelativePath);
-        item.setFileSizeBytes(file.getSize());
-        item.setMimeType(file.getContentType());
-        orderItemRepo.save(item);
-        
         return ResponseEntity.ok().build();
     }
 
     @GetMapping("/{orderId}")
     public ResponseEntity<OrderDto> getOrder(@PathVariable UUID orderId) {
-        return orderRepo.findById(orderId)
+        return orderControllerService.getOrder(orderId)
-                .map(o -> {
+                .map(ResponseEntity::ok)
-                    List<OrderItem> items = orderItemRepo.findByOrder_Id(o.getId());
-                    return ResponseEntity.ok(convertToDto(o, items));
-                })
                 .orElse(ResponseEntity.notFound().build());
     }
 
@@ -150,89 +66,29 @@ public class OrderController {
             @PathVariable UUID orderId,
             @RequestBody Map<String, String> payload
     ) {
-        String method = payload.get("method");
+        return orderControllerService.reportPayment(orderId, payload.get("method"))
-        paymentService.reportPayment(orderId, method);
+                .map(ResponseEntity::ok)
-        return getOrder(orderId);
+                .orElse(ResponseEntity.notFound().build());
     }
 
     @GetMapping("/{orderId}/confirmation")
     public ResponseEntity<byte[]> getConfirmation(@PathVariable UUID orderId) {
-        return generateDocument(orderId, true);
+        return orderControllerService.getConfirmation(orderId);
     }
 
     @GetMapping("/{orderId}/invoice")
     public ResponseEntity<byte[]> getInvoice(@PathVariable UUID orderId) {
-        // Paid invoices are sent by email after back-office payment confirmation.
-        // The public endpoint must not expose a "paid" invoice download.
         return ResponseEntity.notFound().build();
     }
 
-    private ResponseEntity<byte[]> generateDocument(UUID orderId, boolean isConfirmation) {
-        Order order = orderRepo.findById(orderId)
-                .orElseThrow(() -> new RuntimeException("Order not found"));
-
-        if (isConfirmation) {
-            Path relativePath = buildConfirmationPdfRelativePath(order);
-            try {
-                byte[] existingPdf = storageService.loadAsResource(relativePath).getInputStream().readAllBytes();
-                return ResponseEntity.ok()
-                        .header("Content-Disposition", "attachment; filename=\"confirmation-" + getDisplayOrderNumber(order) + ".pdf\"")
-                        .contentType(MediaType.APPLICATION_PDF)
-                        .body(existingPdf);
-            } catch (Exception ignored) {
-                // Fallback to on-the-fly generation if the stored file is missing or unreadable.
-            }
-        }
-
-        List<OrderItem> items = orderItemRepo.findByOrder_Id(orderId);
-        Payment payment = paymentRepo.findByOrder_Id(orderId).orElse(null);
-
-        byte[] pdf = invoiceService.generateDocumentPdf(order, items, isConfirmation, qrBillService, payment);
-        String typePrefix = isConfirmation ? "confirmation-" : "invoice-";
-        String truncatedUuid = order.getId().toString().substring(0, 8);
-        return ResponseEntity.ok()
-                .header("Content-Disposition", "attachment; filename=\"" + typePrefix + truncatedUuid + ".pdf\"")
-                .contentType(MediaType.APPLICATION_PDF)
-                .body(pdf);
-    }
-
-    private Path buildConfirmationPdfRelativePath(Order order) {
-        return Path.of(
-                "orders",
-                order.getId().toString(),
-                "documents",
-                "confirmation-" + getDisplayOrderNumber(order) + ".pdf"
-        );
-    }
-
     @GetMapping("/{orderId}/twint")
     public ResponseEntity<Map<String, String>> getTwintPayment(@PathVariable UUID orderId) {
-        Order order = orderRepo.findById(orderId).orElse(null);
+        return orderControllerService.getTwintPayment(orderId);
-        if (order == null) {
-            return ResponseEntity.notFound().build();
-        }
-
-        byte[] qrPng = twintPaymentService.generateQrPng(order, 360);
-        String qrDataUri = "data:image/png;base64," + Base64.getEncoder().encodeToString(qrPng);
-
-        Map<String, String> data = new HashMap<>();
-        data.put("paymentUrl", twintPaymentService.getTwintPaymentUrl(order));
-        data.put("openUrl", "/api/orders/" + orderId + "/twint/open");
-        data.put("qrImageUrl", "/api/orders/" + orderId + "/twint/qr");
-        data.put("qrImageDataUri", qrDataUri);
-        return ResponseEntity.ok(data);
     }
 
     @GetMapping("/{orderId}/twint/open")
     public ResponseEntity<Void> openTwintPayment(@PathVariable UUID orderId) {
-        Order order = orderRepo.findById(orderId).orElse(null);
+        return orderControllerService.openTwintPayment(orderId);
-        if (order == null) {
-            return ResponseEntity.notFound().build();
-        }
-
-        return ResponseEntity.status(302)
-                .location(URI.create(twintPaymentService.getTwintPaymentUrl(order)))
-                .build();
     }
 
     @GetMapping("/{orderId}/twint/qr")
@@ -240,150 +96,6 @@ public class OrderController {
             @PathVariable UUID orderId,
             @RequestParam(defaultValue = "320") int size
     ) {
-        Order order = orderRepo.findById(orderId).orElse(null);
+        return orderControllerService.getTwintQr(orderId, size);
-        if (order == null) {
-            return ResponseEntity.notFound().build();
-        }
-
-        int normalizedSize = Math.max(200, Math.min(size, 600));
-        byte[] png = twintPaymentService.generateQrPng(order, normalizedSize);
-
-        return ResponseEntity.ok()
-                .contentType(MediaType.IMAGE_PNG)
-                .body(png);
     }
-    
-    private String getExtension(String filename) {
-        if (filename == null) return "stl";
-        String cleaned = StringUtils.cleanPath(filename);
-        if (cleaned.contains("..")) {
-            return "stl";
-        }
-        int i = cleaned.lastIndexOf('.');
-        if (i > 0 && i < cleaned.length() - 1) {
-            String ext = cleaned.substring(i + 1).toLowerCase(Locale.ROOT);
-            if (SAFE_EXTENSION_PATTERN.matcher(ext).matches()) {
-                return ext;
-            }
-        }
-        return "stl";
-    }
-
-    private Path resolveOrderItemRelativePath(String storedRelativePath, UUID orderId, UUID orderItemId) {
-        try {
-            Path candidate = Path.of(storedRelativePath).normalize();
-            if (candidate.isAbsolute()) {
-                return null;
-            }
-
-            Path expectedPrefix = Path.of("orders", orderId.toString(), "3d-files", orderItemId.toString());
-            if (!candidate.startsWith(expectedPrefix)) {
-                return null;
-            }
-
-            return candidate;
-        } catch (InvalidPathException e) {
-            return null;
-        }
-    }
-
-    private OrderDto convertToDto(Order order, List<OrderItem> items) {
-        OrderDto dto = new OrderDto();
-        dto.setId(order.getId());
-        dto.setOrderNumber(getDisplayOrderNumber(order));
-        dto.setStatus(order.getStatus());
-
-        paymentRepo.findByOrder_Id(order.getId()).ifPresent(p -> {
-            dto.setPaymentStatus(p.getStatus());
-            dto.setPaymentMethod(p.getMethod());
-        });
-
-        boolean redactPersonalData = shouldRedactPersonalData(order.getStatus());
-        if (!redactPersonalData) {
-            dto.setCustomerEmail(order.getCustomerEmail());
-            dto.setCustomerPhone(order.getCustomerPhone());
-            dto.setBillingCustomerType(order.getBillingCustomerType());
-        }
-        dto.setPreferredLanguage(order.getPreferredLanguage());
-        dto.setCurrency(order.getCurrency());
-        dto.setSetupCostChf(order.getSetupCostChf());
-        dto.setShippingCostChf(order.getShippingCostChf());
-        dto.setDiscountChf(order.getDiscountChf());
-        dto.setSubtotalChf(order.getSubtotalChf());
-        dto.setIsCadOrder(order.getIsCadOrder());
-        dto.setSourceRequestId(order.getSourceRequestId());
-        dto.setCadHours(order.getCadHours());
-        dto.setCadHourlyRateChf(order.getCadHourlyRateChf());
-        dto.setCadTotalChf(order.getCadTotalChf());
-        dto.setTotalChf(order.getTotalChf());
-        dto.setCreatedAt(order.getCreatedAt());
-        dto.setShippingSameAsBilling(order.getShippingSameAsBilling());
-
-        if (!redactPersonalData) {
-            AddressDto billing = new AddressDto();
-            billing.setFirstName(order.getBillingFirstName());
-            billing.setLastName(order.getBillingLastName());
-            billing.setCompanyName(order.getBillingCompanyName());
-            billing.setContactPerson(order.getBillingContactPerson());
-            billing.setAddressLine1(order.getBillingAddressLine1());
-            billing.setAddressLine2(order.getBillingAddressLine2());
-            billing.setZip(order.getBillingZip());
-            billing.setCity(order.getBillingCity());
-            billing.setCountryCode(order.getBillingCountryCode());
-            dto.setBillingAddress(billing);
-
-            if (!order.getShippingSameAsBilling()) {
-                AddressDto shipping = new AddressDto();
-                shipping.setFirstName(order.getShippingFirstName());
-                shipping.setLastName(order.getShippingLastName());
-                shipping.setCompanyName(order.getShippingCompanyName());
-                shipping.setContactPerson(order.getShippingContactPerson());
-                shipping.setAddressLine1(order.getShippingAddressLine1());
-                shipping.setAddressLine2(order.getShippingAddressLine2());
-                shipping.setZip(order.getShippingZip());
-                shipping.setCity(order.getShippingCity());
-                shipping.setCountryCode(order.getShippingCountryCode());
-                dto.setShippingAddress(shipping);
-            }
-        }
-
-        List<OrderItemDto> itemDtos = items.stream().map(i -> {
-            OrderItemDto idto = new OrderItemDto();
-            idto.setId(i.getId());
-            idto.setOriginalFilename(i.getOriginalFilename());
-            idto.setMaterialCode(i.getMaterialCode());
-            idto.setColorCode(i.getColorCode());
-            idto.setQuality(i.getQuality());
-            idto.setNozzleDiameterMm(i.getNozzleDiameterMm());
-            idto.setLayerHeightMm(i.getLayerHeightMm());
-            idto.setInfillPercent(i.getInfillPercent());
-            idto.setInfillPattern(i.getInfillPattern());
-            idto.setSupportsEnabled(i.getSupportsEnabled());
-            idto.setQuantity(i.getQuantity());
-            idto.setPrintTimeSeconds(i.getPrintTimeSeconds());
-            idto.setMaterialGrams(i.getMaterialGrams());
-            idto.setUnitPriceChf(i.getUnitPriceChf());
-            idto.setLineTotalChf(i.getLineTotalChf());
-            return idto;
-        }).collect(Collectors.toList());
-        dto.setItems(itemDtos);
-
-        return dto;
-    }
-
-    private boolean shouldRedactPersonalData(String status) {
-        if (status == null || status.isBlank()) {
-            return false;
-        }
-        return PERSONAL_DATA_REDACTED_STATUSES.contains(status.trim().toUpperCase(Locale.ROOT));
-    }
-
-    private String getDisplayOrderNumber(Order order) {
-        String orderNumber = order.getOrderNumber();
-        if (orderNumber != null && !orderNumber.isBlank()) {
-            return orderNumber;
-        }
-        return order.getId() != null ? order.getId().toString() : "unknown";
-    }
-
 }

backend/src/main/java/com/printcalculator/controller/admin/AdminFilamentController.java

@@ -4,77 +4,39 @@ import com.printcalculator.dto.AdminFilamentMaterialTypeDto;
 import com.printcalculator.dto.AdminFilamentVariantDto;
 import com.printcalculator.dto.AdminUpsertFilamentMaterialTypeRequest;
 import com.printcalculator.dto.AdminUpsertFilamentVariantRequest;
-import com.printcalculator.entity.FilamentMaterialType;
+import com.printcalculator.service.admin.AdminFilamentControllerService;
-import com.printcalculator.entity.FilamentVariant;
-import com.printcalculator.repository.FilamentMaterialTypeRepository;
-import com.printcalculator.repository.FilamentVariantRepository;
-import com.printcalculator.repository.OrderItemRepository;
-import com.printcalculator.repository.QuoteLineItemRepository;
 import org.springframework.http.ResponseEntity;
 import org.springframework.transaction.annotation.Transactional;
-import org.springframework.web.bind.annotation.*;
+import org.springframework.web.bind.annotation.DeleteMapping;
-import org.springframework.web.server.ResponseStatusException;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
 
-import java.math.BigDecimal;
-import java.time.OffsetDateTime;
-import java.util.Comparator;
 import java.util.List;
-import java.util.Locale;
-import java.util.Set;
-import java.util.regex.Pattern;
-
-import static org.springframework.http.HttpStatus.BAD_REQUEST;
-import static org.springframework.http.HttpStatus.CONFLICT;
-import static org.springframework.http.HttpStatus.NOT_FOUND;
 
 @RestController
 @RequestMapping("/api/admin/filaments")
 @Transactional(readOnly = true)
 public class AdminFilamentController {
-    private static final BigDecimal MAX_NUMERIC_6_3 = new BigDecimal("999.999");
-    private static final Pattern HEX_COLOR_PATTERN = Pattern.compile("^#[0-9A-Fa-f]{6}$");
-    private static final Set<String> ALLOWED_FINISH_TYPES = Set.of(
-            "GLOSSY", "MATTE", "MARBLE", "SILK", "TRANSLUCENT", "SPECIAL"
-    );
 
-    private final FilamentMaterialTypeRepository materialRepo;
+    private final AdminFilamentControllerService adminFilamentControllerService;
-    private final FilamentVariantRepository variantRepo;
-    private final QuoteLineItemRepository quoteLineItemRepo;
-    private final OrderItemRepository orderItemRepo;
 
-    public AdminFilamentController(
+    public AdminFilamentController(AdminFilamentControllerService adminFilamentControllerService) {
-            FilamentMaterialTypeRepository materialRepo,
+        this.adminFilamentControllerService = adminFilamentControllerService;
-            FilamentVariantRepository variantRepo,
-            QuoteLineItemRepository quoteLineItemRepo,
-            OrderItemRepository orderItemRepo
-    ) {
-        this.materialRepo = materialRepo;
-        this.variantRepo = variantRepo;
-        this.quoteLineItemRepo = quoteLineItemRepo;
-        this.orderItemRepo = orderItemRepo;
     }
 
     @GetMapping("/materials")
     public ResponseEntity<List<AdminFilamentMaterialTypeDto>> getMaterials() {
-        List<AdminFilamentMaterialTypeDto> response = materialRepo.findAll().stream()
+        return ResponseEntity.ok(adminFilamentControllerService.getMaterials());
-                .sorted(Comparator.comparing(FilamentMaterialType::getMaterialCode, String.CASE_INSENSITIVE_ORDER))
-                .map(this::toMaterialDto)
-                .toList();
-        return ResponseEntity.ok(response);
     }
 
     @GetMapping("/variants")
     public ResponseEntity<List<AdminFilamentVariantDto>> getVariants() {
-        List<AdminFilamentVariantDto> response = variantRepo.findAll().stream()
+        return ResponseEntity.ok(adminFilamentControllerService.getVariants());
-                .sorted(Comparator
-                        .comparing((FilamentVariant v) -> {
-                            FilamentMaterialType type = v.getFilamentMaterialType();
-                            return type != null && type.getMaterialCode() != null ? type.getMaterialCode() : "";
-                        }, String.CASE_INSENSITIVE_ORDER)
-                        .thenComparing(v -> v.getVariantDisplayName() != null ? v.getVariantDisplayName() : "", String.CASE_INSENSITIVE_ORDER))
-                .map(this::toVariantDto)
-                .toList();
-        return ResponseEntity.ok(response);
     }
 
     @PostMapping("/materials")
@@ -82,13 +44,7 @@ public class AdminFilamentController {
     public ResponseEntity<AdminFilamentMaterialTypeDto> createMaterial(
             @RequestBody AdminUpsertFilamentMaterialTypeRequest payload
     ) {
-        String materialCode = normalizeAndValidateMaterialCode(payload);
+        return ResponseEntity.ok(adminFilamentControllerService.createMaterial(payload));
-        ensureMaterialCodeAvailable(materialCode, null);
-
-        FilamentMaterialType material = new FilamentMaterialType();
-        applyMaterialPayload(material, payload, materialCode);
-        FilamentMaterialType saved = materialRepo.save(material);
-        return ResponseEntity.ok(toMaterialDto(saved));
     }
 
     @PutMapping("/materials/{materialTypeId}")
@@ -97,15 +53,7 @@ public class AdminFilamentController {
             @PathVariable Long materialTypeId,
             @RequestBody AdminUpsertFilamentMaterialTypeRequest payload
     ) {
-        FilamentMaterialType material = materialRepo.findById(materialTypeId)
+        return ResponseEntity.ok(adminFilamentControllerService.updateMaterial(materialTypeId, payload));
-                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Filament material not found"));
-
-        String materialCode = normalizeAndValidateMaterialCode(payload);
-        ensureMaterialCodeAvailable(materialCode, materialTypeId);
-
-        applyMaterialPayload(material, payload, materialCode);
-        FilamentMaterialType saved = materialRepo.save(material);
-        return ResponseEntity.ok(toMaterialDto(saved));
     }
 
     @PostMapping("/variants")
@@ -113,17 +61,7 @@ public class AdminFilamentController {
     public ResponseEntity<AdminFilamentVariantDto> createVariant(
             @RequestBody AdminUpsertFilamentVariantRequest payload
     ) {
-        FilamentMaterialType material = validateAndResolveMaterial(payload);
+        return ResponseEntity.ok(adminFilamentControllerService.createVariant(payload));
-        String normalizedDisplayName = normalizeAndValidateVariantDisplayName(payload.getVariantDisplayName());
-        String normalizedColorName = normalizeAndValidateColorName(payload.getColorName());
-        validateNumericPayload(payload);
-        ensureVariantDisplayNameAvailable(material, normalizedDisplayName, null);
-
-        FilamentVariant variant = new FilamentVariant();
-        variant.setCreatedAt(OffsetDateTime.now());
-        applyVariantPayload(variant, payload, material, normalizedDisplayName, normalizedColorName);
-        FilamentVariant saved = variantRepo.save(variant);
-        return ResponseEntity.ok(toVariantDto(saved));
     }
 
     @PutMapping("/variants/{variantId}")
@@ -132,224 +70,13 @@ public class AdminFilamentController {
             @PathVariable Long variantId,
             @RequestBody AdminUpsertFilamentVariantRequest payload
     ) {
-        FilamentVariant variant = variantRepo.findById(variantId)
+        return ResponseEntity.ok(adminFilamentControllerService.updateVariant(variantId, payload));
-                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Filament variant not found"));
-
-        FilamentMaterialType material = validateAndResolveMaterial(payload);
-        String normalizedDisplayName = normalizeAndValidateVariantDisplayName(payload.getVariantDisplayName());
-        String normalizedColorName = normalizeAndValidateColorName(payload.getColorName());
-        validateNumericPayload(payload);
-        ensureVariantDisplayNameAvailable(material, normalizedDisplayName, variantId);
-
-        applyVariantPayload(variant, payload, material, normalizedDisplayName, normalizedColorName);
-        FilamentVariant saved = variantRepo.save(variant);
-        return ResponseEntity.ok(toVariantDto(saved));
     }
 
     @DeleteMapping("/variants/{variantId}")
     @Transactional
     public ResponseEntity<Void> deleteVariant(@PathVariable Long variantId) {
-        FilamentVariant variant = variantRepo.findById(variantId)
+        adminFilamentControllerService.deleteVariant(variantId);
-                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Filament variant not found"));
-
-        if (quoteLineItemRepo.existsByFilamentVariant_Id(variantId) || orderItemRepo.existsByFilamentVariant_Id(variantId)) {
-            throw new ResponseStatusException(CONFLICT, "Variant is already used in quotes/orders and cannot be deleted");
-        }
-
-        variantRepo.delete(variant);
         return ResponseEntity.noContent().build();
     }
-
-    private void applyMaterialPayload(
-            FilamentMaterialType material,
-            AdminUpsertFilamentMaterialTypeRequest payload,
-            String normalizedMaterialCode
-    ) {
-        boolean isFlexible = payload != null && Boolean.TRUE.equals(payload.getIsFlexible());
-        boolean isTechnical = payload != null && Boolean.TRUE.equals(payload.getIsTechnical());
-        String technicalTypeLabel = payload != null && payload.getTechnicalTypeLabel() != null
-                ? payload.getTechnicalTypeLabel().trim()
-                : null;
-
-        material.setMaterialCode(normalizedMaterialCode);
-        material.setIsFlexible(isFlexible);
-        material.setIsTechnical(isTechnical);
-        material.setTechnicalTypeLabel(isTechnical && technicalTypeLabel != null && !technicalTypeLabel.isBlank()
-                ? technicalTypeLabel
-                : null);
-    }
-
-    private void applyVariantPayload(
-            FilamentVariant variant,
-            AdminUpsertFilamentVariantRequest payload,
-            FilamentMaterialType material,
-            String normalizedDisplayName,
-            String normalizedColorName
-    ) {
-        String normalizedColorHex = normalizeAndValidateColorHex(payload.getColorHex());
-        String normalizedFinishType = normalizeAndValidateFinishType(payload.getFinishType(), payload.getIsMatte());
-        String normalizedBrand = normalizeOptional(payload.getBrand());
-
-        variant.setFilamentMaterialType(material);
-        variant.setVariantDisplayName(normalizedDisplayName);
-        variant.setColorName(normalizedColorName);
-        variant.setColorHex(normalizedColorHex);
-        variant.setFinishType(normalizedFinishType);
-        variant.setBrand(normalizedBrand);
-        variant.setIsMatte(Boolean.TRUE.equals(payload.getIsMatte()) || "MATTE".equals(normalizedFinishType));
-        variant.setIsSpecial(Boolean.TRUE.equals(payload.getIsSpecial()));
-        variant.setCostChfPerKg(payload.getCostChfPerKg());
-        variant.setStockSpools(payload.getStockSpools());
-        variant.setSpoolNetKg(payload.getSpoolNetKg());
-        variant.setIsActive(payload.getIsActive() == null || payload.getIsActive());
-    }
-
-    private String normalizeAndValidateMaterialCode(AdminUpsertFilamentMaterialTypeRequest payload) {
-        if (payload == null || payload.getMaterialCode() == null || payload.getMaterialCode().isBlank()) {
-            throw new ResponseStatusException(BAD_REQUEST, "Material code is required");
-        }
-        return payload.getMaterialCode().trim().toUpperCase();
-    }
-
-    private String normalizeAndValidateVariantDisplayName(String value) {
-        if (value == null || value.isBlank()) {
-            throw new ResponseStatusException(BAD_REQUEST, "Variant display name is required");
-        }
-        return value.trim();
-    }
-
-    private String normalizeAndValidateColorName(String value) {
-        if (value == null || value.isBlank()) {
-            throw new ResponseStatusException(BAD_REQUEST, "Color name is required");
-        }
-        return value.trim();
-    }
-
-    private String normalizeAndValidateColorHex(String value) {
-        if (value == null || value.isBlank()) {
-            return null;
-        }
-        String normalized = value.trim();
-        if (!HEX_COLOR_PATTERN.matcher(normalized).matches()) {
-            throw new ResponseStatusException(BAD_REQUEST, "Color hex must be in format #RRGGBB");
-        }
-        return normalized.toUpperCase(Locale.ROOT);
-    }
-
-    private String normalizeAndValidateFinishType(String finishType, Boolean isMatte) {
-        String normalized = finishType == null || finishType.isBlank()
-                ? (Boolean.TRUE.equals(isMatte) ? "MATTE" : "GLOSSY")
-                : finishType.trim().toUpperCase(Locale.ROOT);
-        if (!ALLOWED_FINISH_TYPES.contains(normalized)) {
-            throw new ResponseStatusException(BAD_REQUEST, "Invalid finish type");
-        }
-        return normalized;
-    }
-
-    private String normalizeOptional(String value) {
-        if (value == null) {
-            return null;
-        }
-        String normalized = value.trim();
-        return normalized.isBlank() ? null : normalized;
-    }
-
-    private FilamentMaterialType validateAndResolveMaterial(AdminUpsertFilamentVariantRequest payload) {
-        if (payload == null || payload.getMaterialTypeId() == null) {
-            throw new ResponseStatusException(BAD_REQUEST, "Material type id is required");
-        }
-
-        return materialRepo.findById(payload.getMaterialTypeId())
-                .orElseThrow(() -> new ResponseStatusException(BAD_REQUEST, "Material type not found"));
-    }
-
-    private void validateNumericPayload(AdminUpsertFilamentVariantRequest payload) {
-        if (payload.getCostChfPerKg() == null || payload.getCostChfPerKg().compareTo(BigDecimal.ZERO) < 0) {
-            throw new ResponseStatusException(BAD_REQUEST, "Cost CHF/kg must be >= 0");
-        }
-        validateNumeric63(payload.getStockSpools(), "Stock spools", true);
-        validateNumeric63(payload.getSpoolNetKg(), "Spool net kg", false);
-    }
-
-    private void validateNumeric63(BigDecimal value, String fieldName, boolean allowZero) {
-        if (value == null) {
-            throw new ResponseStatusException(BAD_REQUEST, fieldName + " is required");
-        }
-
-        if (allowZero) {
-            if (value.compareTo(BigDecimal.ZERO) < 0) {
-                throw new ResponseStatusException(BAD_REQUEST, fieldName + " must be >= 0");
-            }
-        } else if (value.compareTo(BigDecimal.ZERO) <= 0) {
-            throw new ResponseStatusException(BAD_REQUEST, fieldName + " must be > 0");
-        }
-
-        if (value.scale() > 3) {
-            throw new ResponseStatusException(BAD_REQUEST, fieldName + " must have at most 3 decimal places");
-        }
-
-        if (value.compareTo(MAX_NUMERIC_6_3) > 0) {
-            throw new ResponseStatusException(BAD_REQUEST, fieldName + " must be <= 999.999");
-        }
-    }
-
-    private void ensureMaterialCodeAvailable(String materialCode, Long currentMaterialId) {
-        materialRepo.findByMaterialCode(materialCode).ifPresent(existing -> {
-            if (currentMaterialId == null || !existing.getId().equals(currentMaterialId)) {
-                throw new ResponseStatusException(BAD_REQUEST, "Material code already exists");
-            }
-        });
-    }
-
-    private void ensureVariantDisplayNameAvailable(FilamentMaterialType material, String displayName, Long currentVariantId) {
-        variantRepo.findByFilamentMaterialTypeAndVariantDisplayName(material, displayName).ifPresent(existing -> {
-            if (currentVariantId == null || !existing.getId().equals(currentVariantId)) {
-                throw new ResponseStatusException(BAD_REQUEST, "Variant display name already exists for this material");
-            }
-        });
-    }
-
-    private AdminFilamentMaterialTypeDto toMaterialDto(FilamentMaterialType material) {
-        AdminFilamentMaterialTypeDto dto = new AdminFilamentMaterialTypeDto();
-        dto.setId(material.getId());
-        dto.setMaterialCode(material.getMaterialCode());
-        dto.setIsFlexible(material.getIsFlexible());
-        dto.setIsTechnical(material.getIsTechnical());
-        dto.setTechnicalTypeLabel(material.getTechnicalTypeLabel());
-        return dto;
-    }
-
-    private AdminFilamentVariantDto toVariantDto(FilamentVariant variant) {
-        AdminFilamentVariantDto dto = new AdminFilamentVariantDto();
-        dto.setId(variant.getId());
-
-        FilamentMaterialType material = variant.getFilamentMaterialType();
-        if (material != null) {
-            dto.setMaterialTypeId(material.getId());
-            dto.setMaterialCode(material.getMaterialCode());
-            dto.setMaterialIsFlexible(material.getIsFlexible());
-            dto.setMaterialIsTechnical(material.getIsTechnical());
-            dto.setMaterialTechnicalTypeLabel(material.getTechnicalTypeLabel());
-        }
-
-        dto.setVariantDisplayName(variant.getVariantDisplayName());
-        dto.setColorName(variant.getColorName());
-        dto.setColorHex(variant.getColorHex());
-        dto.setFinishType(variant.getFinishType());
-        dto.setBrand(variant.getBrand());
-        dto.setIsMatte(variant.getIsMatte());
-        dto.setIsSpecial(variant.getIsSpecial());
-        dto.setCostChfPerKg(variant.getCostChfPerKg());
-        dto.setStockSpools(variant.getStockSpools());
-        dto.setSpoolNetKg(variant.getSpoolNetKg());
-        BigDecimal stockKg = BigDecimal.ZERO;
-        if (variant.getStockSpools() != null && variant.getSpoolNetKg() != null) {
-            stockKg = variant.getStockSpools().multiply(variant.getSpoolNetKg());
-        }
-        dto.setStockKg(stockKg);
-        dto.setStockFilamentGrams(stockKg.multiply(BigDecimal.valueOf(1000)));
-        dto.setIsActive(variant.getIsActive());
-        dto.setCreatedAt(variant.getCreatedAt());
-        return dto;
-    }
 }

backend/src/main/java/com/printcalculator/controller/admin/AdminOperationsController.java

@@ -1,37 +1,14 @@
 package com.printcalculator.controller.admin;
 
-import com.printcalculator.dto.AdminContactRequestDto;
-import com.printcalculator.dto.AdminContactRequestAttachmentDto;
-import com.printcalculator.dto.AdminContactRequestDetailDto;
 import com.printcalculator.dto.AdminCadInvoiceCreateRequest;
 import com.printcalculator.dto.AdminCadInvoiceDto;
+import com.printcalculator.dto.AdminContactRequestDetailDto;
+import com.printcalculator.dto.AdminContactRequestDto;
 import com.printcalculator.dto.AdminFilamentStockDto;
 import com.printcalculator.dto.AdminQuoteSessionDto;
 import com.printcalculator.dto.AdminUpdateContactRequestStatusRequest;
-import com.printcalculator.entity.CustomQuoteRequest;
+import com.printcalculator.service.admin.AdminOperationsControllerService;
-import com.printcalculator.entity.CustomQuoteRequestAttachment;
-import com.printcalculator.entity.FilamentVariant;
-import com.printcalculator.entity.FilamentVariantStockKg;
-import com.printcalculator.entity.Order;
-import com.printcalculator.entity.QuoteLineItem;
-import com.printcalculator.entity.QuoteSession;
-import com.printcalculator.repository.CustomQuoteRequestAttachmentRepository;
-import com.printcalculator.repository.CustomQuoteRequestRepository;
-import com.printcalculator.repository.FilamentVariantRepository;
-import com.printcalculator.repository.FilamentVariantStockKgRepository;
-import com.printcalculator.repository.OrderRepository;
-import com.printcalculator.repository.PricingPolicyRepository;
-import com.printcalculator.repository.QuoteLineItemRepository;
-import com.printcalculator.repository.QuoteSessionRepository;
-import com.printcalculator.service.QuoteSessionTotalsService;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 import org.springframework.core.io.Resource;
-import org.springframework.core.io.UrlResource;
-import org.springframework.data.domain.Sort;
-import org.springframework.http.ContentDisposition;
-import org.springframework.http.HttpHeaders;
-import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.bind.annotation.DeleteMapping;
@@ -42,148 +19,34 @@ import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
-import org.springframework.web.server.ResponseStatusException;
 
-import java.io.IOException;
-import java.io.UncheckedIOException;
-import java.math.BigDecimal;
-import java.math.RoundingMode;
-import java.net.MalformedURLException;
-import java.nio.charset.StandardCharsets;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.time.OffsetDateTime;
-import java.util.Collections;
-import java.util.Comparator;
 import java.util.List;
-import java.util.Locale;
-import java.util.Map;
-import java.util.Set;
 import java.util.UUID;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
-
-import static org.springframework.http.HttpStatus.BAD_REQUEST;
-import static org.springframework.http.HttpStatus.CONFLICT;
-import static org.springframework.http.HttpStatus.INTERNAL_SERVER_ERROR;
-import static org.springframework.http.HttpStatus.NOT_FOUND;
 
 @RestController
 @RequestMapping("/api/admin")
 @Transactional(readOnly = true)
 public class AdminOperationsController {
-    private static final Logger logger = LoggerFactory.getLogger(AdminOperationsController.class);
-    private static final Path CONTACT_ATTACHMENTS_ROOT = Paths.get("storage_requests").toAbsolutePath().normalize();
-    private static final Set<String> CONTACT_REQUEST_ALLOWED_STATUSES = Set.of(
-            "NEW", "PENDING", "IN_PROGRESS", "DONE", "CLOSED"
-    );
 
-    private final FilamentVariantStockKgRepository filamentStockRepo;
+    private final AdminOperationsControllerService adminOperationsControllerService;
-    private final FilamentVariantRepository filamentVariantRepo;
-    private final CustomQuoteRequestRepository customQuoteRequestRepo;
-    private final CustomQuoteRequestAttachmentRepository customQuoteRequestAttachmentRepo;
-    private final QuoteSessionRepository quoteSessionRepo;
-    private final QuoteLineItemRepository quoteLineItemRepo;
-    private final OrderRepository orderRepo;
-    private final PricingPolicyRepository pricingRepo;
-    private final QuoteSessionTotalsService quoteSessionTotalsService;
 
-    public AdminOperationsController(
+    public AdminOperationsController(AdminOperationsControllerService adminOperationsControllerService) {
-            FilamentVariantStockKgRepository filamentStockRepo,
+        this.adminOperationsControllerService = adminOperationsControllerService;
-            FilamentVariantRepository filamentVariantRepo,
-            CustomQuoteRequestRepository customQuoteRequestRepo,
-            CustomQuoteRequestAttachmentRepository customQuoteRequestAttachmentRepo,
-            QuoteSessionRepository quoteSessionRepo,
-            QuoteLineItemRepository quoteLineItemRepo,
-            OrderRepository orderRepo,
-            PricingPolicyRepository pricingRepo,
-            QuoteSessionTotalsService quoteSessionTotalsService
-    ) {
-        this.filamentStockRepo = filamentStockRepo;
-        this.filamentVariantRepo = filamentVariantRepo;
-        this.customQuoteRequestRepo = customQuoteRequestRepo;
-        this.customQuoteRequestAttachmentRepo = customQuoteRequestAttachmentRepo;
-        this.quoteSessionRepo = quoteSessionRepo;
-        this.quoteLineItemRepo = quoteLineItemRepo;
-        this.orderRepo = orderRepo;
-        this.pricingRepo = pricingRepo;
-        this.quoteSessionTotalsService = quoteSessionTotalsService;
     }
 
     @GetMapping("/filament-stock")
     public ResponseEntity<List<AdminFilamentStockDto>> getFilamentStock() {
-        List<FilamentVariantStockKg> stocks = filamentStockRepo.findAll(Sort.by(Sort.Direction.ASC, "stockKg"));
+        return ResponseEntity.ok(adminOperationsControllerService.getFilamentStock());
-        Set<Long> variantIds = stocks.stream()
-                .map(FilamentVariantStockKg::getFilamentVariantId)
-                .collect(Collectors.toSet());
-
-        Map<Long, FilamentVariant> variantsById;
-        if (variantIds.isEmpty()) {
-            variantsById = Collections.emptyMap();
-        } else {
-            variantsById = filamentVariantRepo.findAllById(variantIds).stream()
-                    .collect(Collectors.toMap(FilamentVariant::getId, variant -> variant));
-        }
-
-        List<AdminFilamentStockDto> response = stocks.stream().map(stock -> {
-            FilamentVariant variant = variantsById.get(stock.getFilamentVariantId());
-            AdminFilamentStockDto dto = new AdminFilamentStockDto();
-            dto.setFilamentVariantId(stock.getFilamentVariantId());
-            dto.setStockSpools(stock.getStockSpools());
-            dto.setSpoolNetKg(stock.getSpoolNetKg());
-            dto.setStockKg(stock.getStockKg());
-            BigDecimal grams = stock.getStockKg() != null
-                    ? stock.getStockKg().multiply(BigDecimal.valueOf(1000))
-                    : BigDecimal.ZERO;
-            dto.setStockFilamentGrams(grams);
-
-            if (variant != null) {
-                dto.setMaterialCode(
-                        variant.getFilamentMaterialType() != null
-                                ? variant.getFilamentMaterialType().getMaterialCode()
-                                : "UNKNOWN"
-                );
-                dto.setVariantDisplayName(variant.getVariantDisplayName());
-                dto.setColorName(variant.getColorName());
-                dto.setActive(variant.getIsActive());
-            } else {
-                dto.setMaterialCode("UNKNOWN");
-                dto.setVariantDisplayName("Variant " + stock.getFilamentVariantId());
-                dto.setColorName("-");
-                dto.setActive(false);
-            }
-
-            return dto;
-        }).toList();
-
-        return ResponseEntity.ok(response);
     }
 
     @GetMapping("/contact-requests")
     public ResponseEntity<List<AdminContactRequestDto>> getContactRequests() {
-        List<AdminContactRequestDto> response = customQuoteRequestRepo.findAll(
+        return ResponseEntity.ok(adminOperationsControllerService.getContactRequests());
-                        Sort.by(Sort.Direction.DESC, "createdAt")
-                )
-                .stream()
-                .map(this::toContactRequestDto)
-                .toList();
-
-        return ResponseEntity.ok(response);
     }
 
     @GetMapping("/contact-requests/{requestId}")
     public ResponseEntity<AdminContactRequestDetailDto> getContactRequestDetail(@PathVariable UUID requestId) {
-        CustomQuoteRequest request = customQuoteRequestRepo.findById(requestId)
+        return ResponseEntity.ok(adminOperationsControllerService.getContactRequestDetail(requestId));
-                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Contact request not found"));
-
-        List<AdminContactRequestAttachmentDto> attachments = customQuoteRequestAttachmentRepo
-                .findByRequest_IdOrderByCreatedAtAsc(requestId)
-                .stream()
-                .map(this::toContactRequestAttachmentDto)
-                .toList();
-
-        return ResponseEntity.ok(toContactRequestDetailDto(request, attachments));
     }
 
     @PatchMapping("/contact-requests/{requestId}/status")
@@ -192,31 +55,7 @@ public class AdminOperationsController {
             @PathVariable UUID requestId,
             @RequestBody AdminUpdateContactRequestStatusRequest payload
     ) {
-        CustomQuoteRequest request = customQuoteRequestRepo.findById(requestId)
+        return ResponseEntity.ok(adminOperationsControllerService.updateContactRequestStatus(requestId, payload));
-                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Contact request not found"));
-
-        String requestedStatus = payload != null && payload.getStatus() != null
-                ? payload.getStatus().trim().toUpperCase(Locale.ROOT)
-                : "";
-
-        if (!CONTACT_REQUEST_ALLOWED_STATUSES.contains(requestedStatus)) {
-            throw new ResponseStatusException(
-                    BAD_REQUEST,
-                    "Invalid status. Allowed: " + String.join(", ", CONTACT_REQUEST_ALLOWED_STATUSES)
-            );
-        }
-
-        request.setStatus(requestedStatus);
-        request.setUpdatedAt(OffsetDateTime.now());
-        CustomQuoteRequest saved = customQuoteRequestRepo.save(request);
-
-        List<AdminContactRequestAttachmentDto> attachments = customQuoteRequestAttachmentRepo
-                .findByRequest_IdOrderByCreatedAtAsc(requestId)
-                .stream()
-                .map(this::toContactRequestAttachmentDto)
-                .toList();
-
-        return ResponseEntity.ok(toContactRequestDetailDto(saved, attachments));
     }
 
     @GetMapping("/contact-requests/{requestId}/attachments/{attachmentId}/file")
@@ -224,87 +63,17 @@ public class AdminOperationsController {
             @PathVariable UUID requestId,
             @PathVariable UUID attachmentId
     ) {
-        CustomQuoteRequestAttachment attachment = customQuoteRequestAttachmentRepo.findById(attachmentId)
+        return adminOperationsControllerService.downloadContactRequestAttachment(requestId, attachmentId);
-                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Attachment not found"));
-
-        if (!attachment.getRequest().getId().equals(requestId)) {
-            throw new ResponseStatusException(NOT_FOUND, "Attachment not found for request");
-        }
-
-        String relativePath = attachment.getStoredRelativePath();
-        if (relativePath == null || relativePath.isBlank() || "PENDING".equals(relativePath)) {
-            throw new ResponseStatusException(NOT_FOUND, "Attachment file not available");
-        }
-
-        String expectedPrefix = "quote-requests/" + requestId + "/attachments/" + attachmentId + "/";
-        if (!relativePath.startsWith(expectedPrefix)) {
-            throw new ResponseStatusException(NOT_FOUND, "Attachment file not available");
-        }
-
-        Path filePath = CONTACT_ATTACHMENTS_ROOT.resolve(relativePath).normalize();
-        if (!filePath.startsWith(CONTACT_ATTACHMENTS_ROOT)) {
-            throw new ResponseStatusException(NOT_FOUND, "Attachment file not available");
-        }
-
-        if (!Files.exists(filePath)) {
-            throw new ResponseStatusException(NOT_FOUND, "Attachment file not available");
-        }
-
-        try {
-            Resource resource = new UrlResource(filePath.toUri());
-            if (!resource.exists() || !resource.isReadable()) {
-                throw new ResponseStatusException(NOT_FOUND, "Attachment file not available");
-            }
-
-            MediaType mediaType = MediaType.APPLICATION_OCTET_STREAM;
-            String mimeType = attachment.getMimeType();
-            if (mimeType != null && !mimeType.isBlank()) {
-                try {
-                    mediaType = MediaType.parseMediaType(mimeType);
-                } catch (Exception ignored) {
-                    mediaType = MediaType.APPLICATION_OCTET_STREAM;
-                }
-            }
-
-            String filename = attachment.getOriginalFilename();
-            if (filename == null || filename.isBlank()) {
-                filename = attachment.getStoredFilename() != null && !attachment.getStoredFilename().isBlank()
-                        ? attachment.getStoredFilename()
-                        : "attachment-" + attachmentId;
-            }
-
-            return ResponseEntity.ok()
-                    .contentType(mediaType)
-                    .header(HttpHeaders.CONTENT_DISPOSITION, ContentDisposition.attachment()
-                            .filename(filename, StandardCharsets.UTF_8)
-                            .build()
-                            .toString())
-                    .body(resource);
-        } catch (MalformedURLException e) {
-            throw new ResponseStatusException(NOT_FOUND, "Attachment file not available");
-        }
     }
 
     @GetMapping("/sessions")
     public ResponseEntity<List<AdminQuoteSessionDto>> getQuoteSessions() {
-        List<AdminQuoteSessionDto> response = quoteSessionRepo.findAll(
+        return ResponseEntity.ok(adminOperationsControllerService.getQuoteSessions());
-                        Sort.by(Sort.Direction.DESC, "createdAt")
-                )
-                .stream()
-                .map(this::toQuoteSessionDto)
-                .toList();
-
-        return ResponseEntity.ok(response);
     }
 
     @GetMapping("/cad-invoices")
     public ResponseEntity<List<AdminCadInvoiceDto>> getCadInvoices() {
-        List<AdminCadInvoiceDto> response = quoteSessionRepo.findByStatusInOrderByCreatedAtDesc(List.of("CAD_ACTIVE", "CONVERTED"))
+        return ResponseEntity.ok(adminOperationsControllerService.getCadInvoices());
-                .stream()
-                .filter(this::isCadSessionRecord)
-                .map(this::toCadInvoiceDto)
-                .toList();
-        return ResponseEntity.ok(response);
     }
 
     @PostMapping("/cad-invoices")
@@ -312,198 +81,13 @@ public class AdminOperationsController {
     public ResponseEntity<AdminCadInvoiceDto> createOrUpdateCadInvoice(
             @RequestBody AdminCadInvoiceCreateRequest payload
     ) {
-        if (payload == null || payload.getCadHours() == null) {
+        return ResponseEntity.ok(adminOperationsControllerService.createOrUpdateCadInvoice(payload));
-            throw new ResponseStatusException(BAD_REQUEST, "cadHours is required");
-        }
-
-        BigDecimal cadHours = payload.getCadHours().setScale(2, RoundingMode.HALF_UP);
-        if (cadHours.compareTo(BigDecimal.ZERO) <= 0) {
-            throw new ResponseStatusException(BAD_REQUEST, "cadHours must be > 0");
-        }
-
-        BigDecimal cadRate = payload.getCadHourlyRateChf();
-        if (cadRate == null || cadRate.compareTo(BigDecimal.ZERO) <= 0) {
-            var policy = pricingRepo.findFirstByIsActiveTrueOrderByValidFromDesc();
-            cadRate = policy != null && policy.getCadCostChfPerHour() != null
-                    ? policy.getCadCostChfPerHour()
-                    : BigDecimal.ZERO;
-        }
-        cadRate = cadRate.setScale(2, RoundingMode.HALF_UP);
-
-        QuoteSession session;
-        if (payload.getSessionId() != null) {
-            session = quoteSessionRepo.findById(payload.getSessionId())
-                    .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Session not found"));
-        } else {
-            session = new QuoteSession();
-            session.setStatus("CAD_ACTIVE");
-            session.setPricingVersion("v1");
-            session.setMaterialCode("PLA");
-            session.setNozzleDiameterMm(BigDecimal.valueOf(0.4));
-            session.setLayerHeightMm(BigDecimal.valueOf(0.2));
-            session.setInfillPattern("grid");
-            session.setInfillPercent(20);
-            session.setSupportsEnabled(false);
-            session.setSetupCostChf(BigDecimal.ZERO);
-            session.setCreatedAt(OffsetDateTime.now());
-            session.setExpiresAt(OffsetDateTime.now().plusDays(30));
-        }
-
-        if ("CONVERTED".equals(session.getStatus())) {
-            throw new ResponseStatusException(CONFLICT, "Session already converted to order");
-        }
-
-        if (payload.getSourceRequestId() != null) {
-            if (!customQuoteRequestRepo.existsById(payload.getSourceRequestId())) {
-                throw new ResponseStatusException(NOT_FOUND, "Source request not found");
-            }
-            session.setSourceRequestId(payload.getSourceRequestId());
-        } else {
-            session.setSourceRequestId(null);
-        }
-
-        session.setStatus("CAD_ACTIVE");
-        session.setCadHours(cadHours);
-        session.setCadHourlyRateChf(cadRate);
-        if (payload.getNotes() != null) {
-            String trimmedNotes = payload.getNotes().trim();
-            session.setNotes(trimmedNotes.isEmpty() ? null : trimmedNotes);
-        }
-
-        QuoteSession saved = quoteSessionRepo.save(session);
-        return ResponseEntity.ok(toCadInvoiceDto(saved));
     }
 
     @DeleteMapping("/sessions/{sessionId}")
     @Transactional
     public ResponseEntity<Void> deleteQuoteSession(@PathVariable UUID sessionId) {
-        QuoteSession session = quoteSessionRepo.findById(sessionId)
+        adminOperationsControllerService.deleteQuoteSession(sessionId);
-                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Session not found"));
-
-        if (orderRepo.existsBySourceQuoteSession_Id(sessionId)) {
-            throw new ResponseStatusException(CONFLICT, "Cannot delete session already linked to an order");
-        }
-
-        deleteSessionFiles(sessionId);
-        quoteSessionRepo.delete(session);
         return ResponseEntity.noContent().build();
     }
-
-    private AdminContactRequestDto toContactRequestDto(CustomQuoteRequest request) {
-        AdminContactRequestDto dto = new AdminContactRequestDto();
-        dto.setId(request.getId());
-        dto.setRequestType(request.getRequestType());
-        dto.setCustomerType(request.getCustomerType());
-        dto.setEmail(request.getEmail());
-        dto.setPhone(request.getPhone());
-        dto.setName(request.getName());
-        dto.setCompanyName(request.getCompanyName());
-        dto.setStatus(request.getStatus());
-        dto.setCreatedAt(request.getCreatedAt());
-        return dto;
-    }
-
-    private AdminContactRequestAttachmentDto toContactRequestAttachmentDto(CustomQuoteRequestAttachment attachment) {
-        AdminContactRequestAttachmentDto dto = new AdminContactRequestAttachmentDto();
-        dto.setId(attachment.getId());
-        dto.setOriginalFilename(attachment.getOriginalFilename());
-        dto.setMimeType(attachment.getMimeType());
-        dto.setFileSizeBytes(attachment.getFileSizeBytes());
-        dto.setCreatedAt(attachment.getCreatedAt());
-        return dto;
-    }
-
-    private AdminContactRequestDetailDto toContactRequestDetailDto(
-            CustomQuoteRequest request,
-            List<AdminContactRequestAttachmentDto> attachments
-    ) {
-        AdminContactRequestDetailDto dto = new AdminContactRequestDetailDto();
-        dto.setId(request.getId());
-        dto.setRequestType(request.getRequestType());
-        dto.setCustomerType(request.getCustomerType());
-        dto.setEmail(request.getEmail());
-        dto.setPhone(request.getPhone());
-        dto.setName(request.getName());
-        dto.setCompanyName(request.getCompanyName());
-        dto.setContactPerson(request.getContactPerson());
-        dto.setMessage(request.getMessage());
-        dto.setStatus(request.getStatus());
-        dto.setCreatedAt(request.getCreatedAt());
-        dto.setUpdatedAt(request.getUpdatedAt());
-        dto.setAttachments(attachments);
-        return dto;
-    }
-
-    private AdminQuoteSessionDto toQuoteSessionDto(QuoteSession session) {
-        AdminQuoteSessionDto dto = new AdminQuoteSessionDto();
-        dto.setId(session.getId());
-        dto.setStatus(session.getStatus());
-        dto.setMaterialCode(session.getMaterialCode());
-        dto.setCreatedAt(session.getCreatedAt());
-        dto.setExpiresAt(session.getExpiresAt());
-        dto.setConvertedOrderId(session.getConvertedOrderId());
-        dto.setSourceRequestId(session.getSourceRequestId());
-        dto.setCadHours(session.getCadHours());
-        dto.setCadHourlyRateChf(session.getCadHourlyRateChf());
-        dto.setCadTotalChf(quoteSessionTotalsService.calculateCadTotal(session));
-        return dto;
-    }
-
-    private boolean isCadSessionRecord(QuoteSession session) {
-        if ("CAD_ACTIVE".equals(session.getStatus())) {
-            return true;
-        }
-        if (!"CONVERTED".equals(session.getStatus())) {
-            return false;
-        }
-        BigDecimal cadHours = session.getCadHours() != null ? session.getCadHours() : BigDecimal.ZERO;
-        return cadHours.compareTo(BigDecimal.ZERO) > 0 || session.getSourceRequestId() != null;
-    }
-
-    private AdminCadInvoiceDto toCadInvoiceDto(QuoteSession session) {
-        List<QuoteLineItem> items = quoteLineItemRepo.findByQuoteSessionId(session.getId());
-        QuoteSessionTotalsService.QuoteSessionTotals totals = quoteSessionTotalsService.compute(session, items);
-
-        AdminCadInvoiceDto dto = new AdminCadInvoiceDto();
-        dto.setSessionId(session.getId());
-        dto.setSessionStatus(session.getStatus());
-        dto.setSourceRequestId(session.getSourceRequestId());
-        dto.setCadHours(session.getCadHours() != null ? session.getCadHours() : BigDecimal.ZERO);
-        dto.setCadHourlyRateChf(session.getCadHourlyRateChf() != null ? session.getCadHourlyRateChf() : BigDecimal.ZERO);
-        dto.setCadTotalChf(totals.cadTotalChf());
-        dto.setPrintItemsTotalChf(totals.printItemsTotalChf());
-        dto.setSetupCostChf(totals.setupCostChf());
-        dto.setShippingCostChf(totals.shippingCostChf());
-        dto.setGrandTotalChf(totals.grandTotalChf());
-        dto.setConvertedOrderId(session.getConvertedOrderId());
-        dto.setCheckoutPath("/checkout/cad?session=" + session.getId());
-        dto.setNotes(session.getNotes());
-        dto.setCreatedAt(session.getCreatedAt());
-
-        if (session.getConvertedOrderId() != null) {
-            Order order = orderRepo.findById(session.getConvertedOrderId()).orElse(null);
-            dto.setConvertedOrderStatus(order != null ? order.getStatus() : null);
-        }
-        return dto;
-    }
-
-    private void deleteSessionFiles(UUID sessionId) {
-        Path sessionDir = Paths.get("storage_quotes", sessionId.toString());
-        if (!Files.exists(sessionDir)) {
-            return;
-        }
-
-        try (Stream<Path> walk = Files.walk(sessionDir)) {
-            walk.sorted(Comparator.reverseOrder()).forEach(path -> {
-                try {
-                    Files.deleteIfExists(path);
-                } catch (IOException e) {
-                    throw new UncheckedIOException(e);
-                }
-            });
-        } catch (IOException | UncheckedIOException e) {
-            logger.error("Failed to delete files for session {}", sessionId, e);
-            throw new ResponseStatusException(INTERNAL_SERVER_ERROR, "Unable to delete session files");
-        }
-    }
 }

backend/src/main/java/com/printcalculator/controller/admin/AdminOrderController.java

@@ -1,25 +1,9 @@
 package com.printcalculator.controller.admin;
 
-import com.printcalculator.dto.AddressDto;
 import com.printcalculator.dto.AdminOrderStatusUpdateRequest;
 import com.printcalculator.dto.OrderDto;
-import com.printcalculator.dto.OrderItemDto;
+import com.printcalculator.service.order.AdminOrderControllerService;
-import com.printcalculator.entity.*;
-import com.printcalculator.event.OrderShippedEvent;
-import com.printcalculator.repository.OrderItemRepository;
-import com.printcalculator.repository.OrderRepository;
-import com.printcalculator.repository.PaymentRepository;
-import com.printcalculator.repository.QuoteLineItemRepository;
-import com.printcalculator.service.payment.InvoicePdfRenderingService;
-import com.printcalculator.service.payment.PaymentService;
-import com.printcalculator.service.payment.QrBillService;
-import com.printcalculator.service.storage.StorageService;
-import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.core.io.Resource;
-import org.springframework.core.io.UrlResource;
-import org.springframework.http.ContentDisposition;
-import org.springframework.http.HttpHeaders;
-import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -28,80 +12,30 @@ import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
-import org.springframework.web.server.ResponseStatusException;
 
-import java.nio.charset.StandardCharsets;
-import java.nio.file.Files;
-import java.nio.file.InvalidPathException;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.util.Comparator;
 import java.util.List;
-import java.util.Locale;
 import java.util.Map;
 import java.util.UUID;
 
-import static org.springframework.http.HttpStatus.BAD_REQUEST;
-import static org.springframework.http.HttpStatus.NOT_FOUND;
-
 @RestController
 @RequestMapping("/api/admin/orders")
 @Transactional(readOnly = true)
 public class AdminOrderController {
-    private static final Path QUOTE_STORAGE_ROOT = Paths.get("storage_quotes").toAbsolutePath().normalize();
-    private static final List<String> ALLOWED_ORDER_STATUSES = List.of(
-            "PENDING_PAYMENT",
-            "PAID",
-            "IN_PRODUCTION",
-            "SHIPPED",
-            "COMPLETED",
-            "CANCELLED"
-    );
 
-    private final OrderRepository orderRepo;
+    private final AdminOrderControllerService adminOrderControllerService;
-    private final OrderItemRepository orderItemRepo;
-    private final PaymentRepository paymentRepo;
-    private final QuoteLineItemRepository quoteLineItemRepo;
-    private final PaymentService paymentService;
-    private final StorageService storageService;
-    private final InvoicePdfRenderingService invoiceService;
-    private final QrBillService qrBillService;
-    private final ApplicationEventPublisher eventPublisher;
 
-    public AdminOrderController(
+    public AdminOrderController(AdminOrderControllerService adminOrderControllerService) {
-            OrderRepository orderRepo,
+        this.adminOrderControllerService = adminOrderControllerService;
-            OrderItemRepository orderItemRepo,
-            PaymentRepository paymentRepo,
-            QuoteLineItemRepository quoteLineItemRepo,
-            PaymentService paymentService,
-            StorageService storageService,
-            InvoicePdfRenderingService invoiceService,
-            QrBillService qrBillService,
-            ApplicationEventPublisher eventPublisher
-    ) {
-        this.orderRepo = orderRepo;
-        this.orderItemRepo = orderItemRepo;
-        this.paymentRepo = paymentRepo;
-        this.quoteLineItemRepo = quoteLineItemRepo;
-        this.paymentService = paymentService;
-        this.storageService = storageService;
-        this.invoiceService = invoiceService;
-        this.qrBillService = qrBillService;
-        this.eventPublisher = eventPublisher;
     }
 
     @GetMapping
     public ResponseEntity<List<OrderDto>> listOrders() {
-        List<OrderDto> response = orderRepo.findAllByOrderByCreatedAtDesc()
+        return ResponseEntity.ok(adminOrderControllerService.listOrders());
-                .stream()
-                .map(this::toOrderDto)
-                .toList();
-        return ResponseEntity.ok(response);
     }
 
     @GetMapping("/{orderId}")
     public ResponseEntity<OrderDto> getOrder(@PathVariable UUID orderId) {
-        return ResponseEntity.ok(toOrderDto(getOrderOrThrow(orderId)));
+        return ResponseEntity.ok(adminOrderControllerService.getOrder(orderId));
     }
 
     @PostMapping("/{orderId}/payments/confirm")
@@ -110,13 +44,7 @@ public class AdminOrderController {
             @PathVariable UUID orderId,
             @RequestBody(required = false) Map<String, String> payload
     ) {
-        getOrderOrThrow(orderId);
+        return ResponseEntity.ok(adminOrderControllerService.updatePaymentMethod(orderId, payload));
-        String method = payload != null ? payload.get("method") : null;
-        if (method == null || method.isBlank()) {
-            throw new ResponseStatusException(BAD_REQUEST, "Payment method is required");
-        }
-        paymentService.updatePaymentMethod(orderId, method);
-        return ResponseEntity.ok(toOrderDto(getOrderOrThrow(orderId)));
     }
 
     @PostMapping("/{orderId}/status")
@@ -125,28 +53,7 @@ public class AdminOrderController {
             @PathVariable UUID orderId,
             @RequestBody AdminOrderStatusUpdateRequest payload
     ) {
-        if (payload == null || payload.getStatus() == null || payload.getStatus().isBlank()) {
+        return ResponseEntity.ok(adminOrderControllerService.updateOrderStatus(orderId, payload));
-            throw new ResponseStatusException(org.springframework.http.HttpStatus.BAD_REQUEST, "Status is required");
-        }
-
-        Order order = getOrderOrThrow(orderId);
-        String normalizedStatus = payload.getStatus().trim().toUpperCase(Locale.ROOT);
-        if (!ALLOWED_ORDER_STATUSES.contains(normalizedStatus)) {
-            throw new ResponseStatusException(
-                    BAD_REQUEST,
-                    "Invalid order status. Allowed values: " + String.join(", ", ALLOWED_ORDER_STATUSES)
-            );
-        }
-        String previousStatus = order.getStatus();
-        order.setStatus(normalizedStatus);
-        Order savedOrder = orderRepo.save(order);
-
-        // Notify customer only on transition to SHIPPED.
-        if (!"SHIPPED".equals(previousStatus) && "SHIPPED".equals(normalizedStatus)) {
-            eventPublisher.publishEvent(new OrderShippedEvent(this, savedOrder));
-        }
-
-        return ResponseEntity.ok(toOrderDto(savedOrder));
     }
 
     @GetMapping("/{orderId}/items/{orderItemId}/file")
@@ -154,290 +61,16 @@ public class AdminOrderController {
             @PathVariable UUID orderId,
             @PathVariable UUID orderItemId
     ) {
-        OrderItem item = orderItemRepo.findById(orderItemId)
+        return adminOrderControllerService.downloadOrderItemFile(orderId, orderItemId);
-                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Order item not found"));
-
-        if (!item.getOrder().getId().equals(orderId)) {
-            throw new ResponseStatusException(NOT_FOUND, "Order item not found for order");
-        }
-
-        String relativePath = item.getStoredRelativePath();
-        if (relativePath == null || relativePath.isBlank() || "PENDING".equals(relativePath)) {
-            throw new ResponseStatusException(NOT_FOUND, "File not available");
-        }
-        Path safeRelativePath = resolveOrderItemRelativePath(relativePath, orderId, orderItemId);
-        if (safeRelativePath == null) {
-            throw new ResponseStatusException(NOT_FOUND, "File not available");
-        }
-
-        try {
-            Resource resource = storageService.loadAsResource(safeRelativePath);
-            MediaType contentType = MediaType.APPLICATION_OCTET_STREAM;
-            if (item.getMimeType() != null && !item.getMimeType().isBlank()) {
-                try {
-                    contentType = MediaType.parseMediaType(item.getMimeType());
-                } catch (Exception ignored) {
-                    contentType = MediaType.APPLICATION_OCTET_STREAM;
-                }
-            }
-
-            String filename = item.getOriginalFilename() != null && !item.getOriginalFilename().isBlank()
-                    ? item.getOriginalFilename()
-                    : "order-item-" + orderItemId;
-
-            return ResponseEntity.ok()
-                    .contentType(contentType)
-                    .header(HttpHeaders.CONTENT_DISPOSITION, ContentDisposition.attachment()
-                            .filename(filename, StandardCharsets.UTF_8)
-                            .build()
-                            .toString())
-                    .body(resource);
-        } catch (Exception e) {
-            throw new ResponseStatusException(NOT_FOUND, "File not available");
-        }
     }
 
     @GetMapping("/{orderId}/documents/confirmation")
     public ResponseEntity<byte[]> downloadOrderConfirmation(@PathVariable UUID orderId) {
-        return generateDocument(getOrderOrThrow(orderId), true);
+        return adminOrderControllerService.downloadOrderConfirmation(orderId);
     }
 
     @GetMapping("/{orderId}/documents/invoice")
     public ResponseEntity<byte[]> downloadOrderInvoice(@PathVariable UUID orderId) {
-        return generateDocument(getOrderOrThrow(orderId), false);
+        return adminOrderControllerService.downloadOrderInvoice(orderId);
-    }
-
-    private Order getOrderOrThrow(UUID orderId) {
-        return orderRepo.findById(orderId)
-                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Order not found"));
-    }
-
-    private OrderDto toOrderDto(Order order) {
-        List<OrderItem> items = orderItemRepo.findByOrder_Id(order.getId());
-        OrderDto dto = new OrderDto();
-        dto.setId(order.getId());
-        dto.setOrderNumber(getDisplayOrderNumber(order));
-        dto.setStatus(order.getStatus());
-
-        paymentRepo.findByOrder_Id(order.getId()).ifPresent(p -> {
-            dto.setPaymentStatus(p.getStatus());
-            dto.setPaymentMethod(p.getMethod());
-        });
-
-        dto.setCustomerEmail(order.getCustomerEmail());
-        dto.setCustomerPhone(order.getCustomerPhone());
-        dto.setPreferredLanguage(order.getPreferredLanguage());
-        dto.setBillingCustomerType(order.getBillingCustomerType());
-        dto.setCurrency(order.getCurrency());
-        dto.setSetupCostChf(order.getSetupCostChf());
-        dto.setShippingCostChf(order.getShippingCostChf());
-        dto.setDiscountChf(order.getDiscountChf());
-        dto.setSubtotalChf(order.getSubtotalChf());
-        dto.setIsCadOrder(order.getIsCadOrder());
-        dto.setSourceRequestId(order.getSourceRequestId());
-        dto.setCadHours(order.getCadHours());
-        dto.setCadHourlyRateChf(order.getCadHourlyRateChf());
-        dto.setCadTotalChf(order.getCadTotalChf());
-        dto.setTotalChf(order.getTotalChf());
-        dto.setCreatedAt(order.getCreatedAt());
-        dto.setShippingSameAsBilling(order.getShippingSameAsBilling());
-        QuoteSession sourceSession = order.getSourceQuoteSession();
-        if (sourceSession != null) {
-            dto.setPrintMaterialCode(sourceSession.getMaterialCode());
-            dto.setPrintNozzleDiameterMm(sourceSession.getNozzleDiameterMm());
-            dto.setPrintLayerHeightMm(sourceSession.getLayerHeightMm());
-            dto.setPrintInfillPattern(sourceSession.getInfillPattern());
-            dto.setPrintInfillPercent(sourceSession.getInfillPercent());
-            dto.setPrintSupportsEnabled(sourceSession.getSupportsEnabled());
-        }
-
-        AddressDto billing = new AddressDto();
-        billing.setFirstName(order.getBillingFirstName());
-        billing.setLastName(order.getBillingLastName());
-        billing.setCompanyName(order.getBillingCompanyName());
-        billing.setContactPerson(order.getBillingContactPerson());
-        billing.setAddressLine1(order.getBillingAddressLine1());
-        billing.setAddressLine2(order.getBillingAddressLine2());
-        billing.setZip(order.getBillingZip());
-        billing.setCity(order.getBillingCity());
-        billing.setCountryCode(order.getBillingCountryCode());
-        dto.setBillingAddress(billing);
-
-        if (!Boolean.TRUE.equals(order.getShippingSameAsBilling())) {
-            AddressDto shipping = new AddressDto();
-            shipping.setFirstName(order.getShippingFirstName());
-            shipping.setLastName(order.getShippingLastName());
-            shipping.setCompanyName(order.getShippingCompanyName());
-            shipping.setContactPerson(order.getShippingContactPerson());
-            shipping.setAddressLine1(order.getShippingAddressLine1());
-            shipping.setAddressLine2(order.getShippingAddressLine2());
-            shipping.setZip(order.getShippingZip());
-            shipping.setCity(order.getShippingCity());
-            shipping.setCountryCode(order.getShippingCountryCode());
-            dto.setShippingAddress(shipping);
-        }
-
-        List<OrderItemDto> itemDtos = items.stream().map(i -> {
-            OrderItemDto idto = new OrderItemDto();
-            idto.setId(i.getId());
-            idto.setOriginalFilename(i.getOriginalFilename());
-            idto.setMaterialCode(i.getMaterialCode());
-            idto.setColorCode(i.getColorCode());
-            idto.setQuantity(i.getQuantity());
-            idto.setPrintTimeSeconds(i.getPrintTimeSeconds());
-            idto.setMaterialGrams(i.getMaterialGrams());
-            idto.setUnitPriceChf(i.getUnitPriceChf());
-            idto.setLineTotalChf(i.getLineTotalChf());
-            return idto;
-        }).toList();
-        dto.setItems(itemDtos);
-
-        return dto;
-    }
-
-    private String getDisplayOrderNumber(Order order) {
-        String orderNumber = order.getOrderNumber();
-        if (orderNumber != null && !orderNumber.isBlank()) {
-            return orderNumber;
-        }
-        return order.getId() != null ? order.getId().toString() : "unknown";
-    }
-
-    private ResponseEntity<byte[]> generateDocument(Order order, boolean isConfirmation) {
-        String displayOrderNumber = getDisplayOrderNumber(order);
-        if (isConfirmation) {
-            Path relativePath = buildConfirmationPdfRelativePath(order.getId(), displayOrderNumber);
-            try {
-                byte[] existingPdf = storageService.loadAsResource(relativePath).getInputStream().readAllBytes();
-                return ResponseEntity.ok()
-                        .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"confirmation-" + displayOrderNumber + ".pdf\"")
-                        .contentType(MediaType.APPLICATION_PDF)
-                        .body(existingPdf);
-            } catch (Exception ignored) {
-                // fallback to generated confirmation document
-            }
-        }
-
-        List<OrderItem> items = orderItemRepo.findByOrder_Id(order.getId());
-        Payment payment = paymentRepo.findByOrder_Id(order.getId()).orElse(null);
-        byte[] pdf = invoiceService.generateDocumentPdf(order, items, isConfirmation, qrBillService, payment);
-
-        String prefix = isConfirmation ? "confirmation-" : "invoice-";
-        return ResponseEntity.ok()
-                .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"" + prefix + displayOrderNumber + ".pdf\"")
-                .contentType(MediaType.APPLICATION_PDF)
-                .body(pdf);
-    }
-
-    private Path resolveOrderItemRelativePath(String storedRelativePath, UUID orderId, UUID orderItemId) {
-        try {
-            Path candidate = Path.of(storedRelativePath).normalize();
-            if (candidate.isAbsolute()) {
-                return null;
-            }
-            Path expectedPrefix = Path.of("orders", orderId.toString(), "3d-files", orderItemId.toString());
-            if (!candidate.startsWith(expectedPrefix)) {
-                return null;
-            }
-            return candidate;
-        } catch (InvalidPathException e) {
-            return null;
-        }
-    }
-
-    private Resource loadOrderItemResourceWithRecovery(OrderItem item, Path safeRelativePath) {
-        try {
-            return storageService.loadAsResource(safeRelativePath);
-        } catch (Exception primaryFailure) {
-            Path sourceQuotePath = resolveFallbackQuoteItemPath(item);
-            if (sourceQuotePath == null) {
-                throw new ResponseStatusException(NOT_FOUND, "File not available");
-            }
-            try {
-                storageService.store(sourceQuotePath, safeRelativePath);
-                return storageService.loadAsResource(safeRelativePath);
-            } catch (Exception copyFailure) {
-                try {
-                    Resource quoteResource = new UrlResource(sourceQuotePath.toUri());
-                    if (quoteResource.exists() || quoteResource.isReadable()) {
-                        return quoteResource;
-                    }
-                } catch (Exception ignored) {
-                    // fall through to 404
-                }
-                throw new ResponseStatusException(NOT_FOUND, "File not available");
-            }
-        }
-    }
-
-    private Path resolveFallbackQuoteItemPath(OrderItem orderItem) {
-        Order order = orderItem.getOrder();
-        QuoteSession sourceSession = order != null ? order.getSourceQuoteSession() : null;
-        UUID sourceSessionId = sourceSession != null ? sourceSession.getId() : null;
-        if (sourceSessionId == null) {
-            return null;
-        }
-
-        String targetFilename = normalizeFilename(orderItem.getOriginalFilename());
-        if (targetFilename == null) {
-            return null;
-        }
-
-        return quoteLineItemRepo.findByQuoteSessionId(sourceSessionId).stream()
-                .filter(q -> targetFilename.equals(normalizeFilename(q.getOriginalFilename())))
-                .sorted(Comparator.comparingInt((QuoteLineItem q) -> scoreQuoteMatch(orderItem, q)).reversed())
-                .map(q -> resolveStoredQuotePath(q.getStoredPath(), sourceSessionId))
-                .filter(path -> path != null && Files.exists(path))
-                .findFirst()
-                .orElse(null);
-    }
-
-    private int scoreQuoteMatch(OrderItem orderItem, QuoteLineItem quoteItem) {
-        int score = 0;
-        if (orderItem.getQuantity() != null && orderItem.getQuantity().equals(quoteItem.getQuantity())) {
-            score += 4;
-        }
-        if (orderItem.getPrintTimeSeconds() != null && orderItem.getPrintTimeSeconds().equals(quoteItem.getPrintTimeSeconds())) {
-            score += 3;
-        }
-        if (orderItem.getMaterialCode() != null
-                && quoteItem.getMaterialCode() != null
-                && orderItem.getMaterialCode().equalsIgnoreCase(quoteItem.getMaterialCode())) {
-            score += 3;
-        }
-        if (orderItem.getMaterialGrams() != null
-                && quoteItem.getMaterialGrams() != null
-                && orderItem.getMaterialGrams().compareTo(quoteItem.getMaterialGrams()) == 0) {
-            score += 2;
-        }
-        return score;
-    }
-
-    private String normalizeFilename(String filename) {
-        if (filename == null || filename.isBlank()) {
-            return null;
-        }
-        return filename.trim();
-    }
-
-    private Path resolveStoredQuotePath(String storedPath, UUID expectedSessionId) {
-        if (storedPath == null || storedPath.isBlank()) {
-            return null;
-        }
-        try {
-            Path raw = Path.of(storedPath).normalize();
-            Path resolved = raw.isAbsolute() ? raw : QUOTE_STORAGE_ROOT.resolve(raw).normalize();
-            Path expectedSessionRoot = QUOTE_STORAGE_ROOT.resolve(expectedSessionId.toString()).normalize();
-            if (!resolved.startsWith(expectedSessionRoot)) {
-                return null;
-            }
-            return resolved;
-        } catch (InvalidPathException e) {
-            return null;
-        }
-    }
-
-    private Path buildConfirmationPdfRelativePath(UUID orderId, String orderNumber) {
-        return Path.of("orders", orderId.toString(), "documents", "confirmation-" + orderNumber + ".pdf");
     }
 }

backend/src/main/java/com/printcalculator/dto/OrderItemDto.java

@@ -8,6 +8,10 @@ public class OrderItemDto {
     private String originalFilename;
     private String materialCode;
     private String colorCode;
+    private Long filamentVariantId;
+    private String filamentVariantDisplayName;
+    private String filamentColorName;
+    private String filamentColorHex;
     private String quality;
     private BigDecimal nozzleDiameterMm;
     private BigDecimal layerHeightMm;
@@ -33,6 +37,18 @@ public class OrderItemDto {
     public String getColorCode() { return colorCode; }
     public void setColorCode(String colorCode) { this.colorCode = colorCode; }
 
+    public Long getFilamentVariantId() { return filamentVariantId; }
+    public void setFilamentVariantId(Long filamentVariantId) { this.filamentVariantId = filamentVariantId; }
+
+    public String getFilamentVariantDisplayName() { return filamentVariantDisplayName; }
+    public void setFilamentVariantDisplayName(String filamentVariantDisplayName) { this.filamentVariantDisplayName = filamentVariantDisplayName; }
+
+    public String getFilamentColorName() { return filamentColorName; }
+    public void setFilamentColorName(String filamentColorName) { this.filamentColorName = filamentColorName; }
+
+    public String getFilamentColorHex() { return filamentColorHex; }
+    public void setFilamentColorHex(String filamentColorHex) { this.filamentColorHex = filamentColorHex; }
+
     public String getQuality() { return quality; }
     public void setQuality(String quality) { this.quality = quality; }
 

backend/src/main/java/com/printcalculator/dto/PrintSettingsDto.java

@@ -7,6 +7,7 @@ public class PrintSettingsDto {
     // Common
     private String material; // e.g. "PLA", "PLA TOUGH", "PETG"
     private String color;    // e.g. "White", "#FFFFFF"
+    private Integer quantity;
     private Long filamentVariantId;
     private Long printerMachineId;
     
@@ -58,6 +59,14 @@ public class PrintSettingsDto {
         this.filamentVariantId = filamentVariantId;
     }
 
+    public Integer getQuantity() {
+        return quantity;
+    }
+
+    public void setQuantity(Integer quantity) {
+        this.quantity = quantity;
+    }
+
     public Long getPrinterMachineId() {
         return printerMachineId;
     }

backend/src/main/java/com/printcalculator/repository/NozzleOptionRepository.java

@@ -3,5 +3,9 @@ package com.printcalculator.repository;
 import com.printcalculator.entity.NozzleOption;
 import org.springframework.data.jpa.repository.JpaRepository;
 
+import java.math.BigDecimal;
+import java.util.Optional;
+
 public interface NozzleOptionRepository extends JpaRepository<NozzleOption, Long> {
-}
+    Optional<NozzleOption> findFirstByNozzleDiameterMmAndIsActiveTrue(BigDecimal nozzleDiameterMm);
+}

backend/src/main/java/com/printcalculator/service/OrderService.java

@@ -157,7 +157,7 @@ public class OrderService {
         order.setSubtotalChf(BigDecimal.ZERO);
         order.setTotalChf(BigDecimal.ZERO);
         order.setDiscountChf(BigDecimal.ZERO);
-        order.setSetupCostChf(session.getSetupCostChf() != null ? session.getSetupCostChf() : BigDecimal.ZERO);
+        order.setSetupCostChf(totals.setupCostChf());
         order.setShippingCostChf(totals.shippingCostChf());
         order.setIsCadOrder(cadTotal.compareTo(BigDecimal.ZERO) > 0 || "CAD_ACTIVE".equals(session.getStatus()));
         order.setSourceRequestId(session.getSourceRequestId());

backend/src/main/java/com/printcalculator/service/ProfileManager.java

@@ -7,10 +7,14 @@ import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
 
 import java.io.IOException;
+import java.math.BigDecimal;
+import java.math.RoundingMode;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.Collections;
 import java.util.Iterator;
 import java.util.Optional;
 import java.util.logging.Logger;
@@ -20,16 +24,21 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.LinkedHashSet;
 import java.util.Set;
+import java.util.Locale;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 @Service
 public class ProfileManager {
 
     private static final Logger logger = Logger.getLogger(ProfileManager.class.getName());
+    private static final Pattern LAYER_MM_PATTERN = Pattern.compile("^(\\d+(?:\\.\\d+)?)mm\\b", Pattern.CASE_INSENSITIVE);
     private final String profilesRoot;
     private final Path resolvedProfilesRoot;
     private final ObjectMapper mapper;
 
     private final Map<String, String> profileAliases;
+    private volatile List<ProcessProfileMeta> cachedProcessProfiles;
 
     public ProfileManager(@Value("${profiles.root:profiles}") String profilesRoot, ObjectMapper mapper) {
         this.profilesRoot = profilesRoot;
@@ -68,6 +77,61 @@ public class ProfileManager {
         return resolveInheritance(profilePath);
     }
 
+    public List<BigDecimal> findCompatibleProcessLayers(String machineProfileName) {
+        if (machineProfileName == null || machineProfileName.isBlank()) {
+            return List.of();
+        }
+
+        Set<BigDecimal> layers = new LinkedHashSet<>();
+        for (ProcessProfileMeta meta : getOrLoadProcessProfiles()) {
+            if (meta.compatiblePrinters().contains(machineProfileName) && meta.layerHeightMm() != null) {
+                layers.add(meta.layerHeightMm());
+            }
+        }
+        if (layers.isEmpty()) {
+            return List.of();
+        }
+
+        List<BigDecimal> sorted = new ArrayList<>(layers);
+        sorted.sort(Comparator.naturalOrder());
+        return sorted;
+    }
+
+    public Optional<String> findCompatibleProcessProfileName(String machineProfileName,
+                                                             BigDecimal layerHeightMm,
+                                                             String qualityHint) {
+        if (machineProfileName == null || machineProfileName.isBlank() || layerHeightMm == null) {
+            return Optional.empty();
+        }
+
+        BigDecimal normalizedLayer = layerHeightMm.setScale(3, RoundingMode.HALF_UP);
+        String normalizedQuality = String.valueOf(qualityHint == null ? "" : qualityHint)
+                .trim()
+                .toLowerCase(Locale.ROOT);
+
+        List<ProcessProfileMeta> candidates = new ArrayList<>();
+        for (ProcessProfileMeta meta : getOrLoadProcessProfiles()) {
+            if (!meta.compatiblePrinters().contains(machineProfileName)) {
+                continue;
+            }
+            if (meta.layerHeightMm() == null || meta.layerHeightMm().compareTo(normalizedLayer) != 0) {
+                continue;
+            }
+            candidates.add(meta);
+        }
+
+        if (candidates.isEmpty()) {
+            return Optional.empty();
+        }
+
+        candidates.sort(Comparator
+                .comparingInt((ProcessProfileMeta meta) -> scoreProcessForQuality(meta.name(), normalizedQuality))
+                .reversed()
+                .thenComparing(ProcessProfileMeta::name, String.CASE_INSENSITIVE_ORDER));
+
+        return Optional.ofNullable(candidates.get(0).name());
+    }
+
     private Path findProfileFile(String name, String type) {
         if (!Files.isDirectory(resolvedProfilesRoot)) {
             logger.severe("Profiles root does not exist or is not a directory: " + resolvedProfilesRoot);
@@ -215,4 +279,125 @@ public class ProfileManager {
         }
         return "any";
     }
+
+    private List<ProcessProfileMeta> getOrLoadProcessProfiles() {
+        List<ProcessProfileMeta> cached = cachedProcessProfiles;
+        if (cached != null) {
+            return cached;
+        }
+
+        synchronized (this) {
+            if (cachedProcessProfiles != null) {
+                return cachedProcessProfiles;
+            }
+
+            List<ProcessProfileMeta> loaded = new ArrayList<>();
+            if (!Files.isDirectory(resolvedProfilesRoot)) {
+                cachedProcessProfiles = Collections.emptyList();
+                return cachedProcessProfiles;
+            }
+
+            try (Stream<Path> stream = Files.walk(resolvedProfilesRoot)) {
+                List<Path> processFiles = stream
+                        .filter(Files::isRegularFile)
+                        .filter(path -> path.getFileName().toString().toLowerCase(Locale.ROOT).endsWith(".json"))
+                        .filter(path -> pathContainsSegment(path, "process"))
+                        .sorted()
+                        .toList();
+
+                for (Path processFile : processFiles) {
+                    try {
+                        JsonNode node = mapper.readTree(processFile.toFile());
+                        if (!"process".equalsIgnoreCase(node.path("type").asText())) {
+                            continue;
+                        }
+
+                        String name = node.path("name").asText("");
+                        if (name.isBlank()) {
+                            continue;
+                        }
+
+                        BigDecimal layer = extractLayerHeightFromProfileName(name);
+                        if (layer == null) {
+                            continue;
+                        }
+
+                        Set<String> compatiblePrinters = new LinkedHashSet<>();
+                        JsonNode compatibleNode = node.path("compatible_printers");
+                        if (compatibleNode.isArray()) {
+                            compatibleNode.forEach(value -> {
+                                String printer = value.asText("").trim();
+                                if (!printer.isBlank()) {
+                                    compatiblePrinters.add(printer);
+                                }
+                            });
+                        }
+
+                        if (compatiblePrinters.isEmpty()) {
+                            continue;
+                        }
+
+                        loaded.add(new ProcessProfileMeta(name, layer, compatiblePrinters));
+                    } catch (Exception ignored) {
+                        // Ignore malformed or non-process JSON files.
+                    }
+                }
+            } catch (IOException e) {
+                logger.warning("Failed to scan process profiles: " + e.getMessage());
+            }
+
+            cachedProcessProfiles = List.copyOf(loaded);
+            return cachedProcessProfiles;
+        }
+    }
+
+    private BigDecimal extractLayerHeightFromProfileName(String profileName) {
+        if (profileName == null) {
+            return null;
+        }
+        Matcher matcher = LAYER_MM_PATTERN.matcher(profileName.trim());
+        if (!matcher.find()) {
+            return null;
+        }
+        try {
+            return new BigDecimal(matcher.group(1)).setScale(3, RoundingMode.HALF_UP);
+        } catch (NumberFormatException ex) {
+            return null;
+        }
+    }
+
+    private int scoreProcessForQuality(String processName, String qualityHint) {
+        String normalizedName = String.valueOf(processName == null ? "" : processName)
+                .toLowerCase(Locale.ROOT);
+        if (qualityHint == null || qualityHint.isBlank()) {
+            return 0;
+        }
+
+        return switch (qualityHint) {
+            case "draft" -> {
+                if (normalizedName.contains("extra draft")) yield 30;
+                if (normalizedName.contains("draft")) yield 20;
+                if (normalizedName.contains("standard")) yield 10;
+                yield 0;
+            }
+            case "extra_fine", "high", "high_definition" -> {
+                if (normalizedName.contains("extra fine")) yield 30;
+                if (normalizedName.contains("high quality")) yield 25;
+                if (normalizedName.contains("fine")) yield 20;
+                if (normalizedName.contains("standard")) yield 5;
+                yield 0;
+            }
+            default -> {
+                if (normalizedName.contains("standard")) yield 30;
+                if (normalizedName.contains("optimal")) yield 25;
+                if (normalizedName.contains("strength")) yield 20;
+                if (normalizedName.contains("high quality")) yield 10;
+                if (normalizedName.contains("draft")) yield 5;
+                yield 0;
+            }
+        };
+    }
+
+    private record ProcessProfileMeta(String name, BigDecimal layerHeightMm, Set<String> compatiblePrinters) {
+    }
 }

backend/src/main/java/com/printcalculator/service/QuoteSessionTotalsService.java

@@ -3,22 +3,29 @@ package com.printcalculator.service;
 import com.printcalculator.entity.PricingPolicy;
 import com.printcalculator.entity.QuoteLineItem;
 import com.printcalculator.entity.QuoteSession;
+import com.printcalculator.repository.NozzleOptionRepository;
 import com.printcalculator.repository.PricingPolicyRepository;
 import org.springframework.stereotype.Service;
 
 import java.math.BigDecimal;
 import java.math.RoundingMode;
+import java.util.LinkedHashSet;
 import java.util.Arrays;
 import java.util.List;
+import java.util.Set;
 
 @Service
 public class QuoteSessionTotalsService {
     private final PricingPolicyRepository pricingRepo;
     private final QuoteCalculator quoteCalculator;
+    private final NozzleOptionRepository nozzleOptionRepo;
 
-    public QuoteSessionTotalsService(PricingPolicyRepository pricingRepo, QuoteCalculator quoteCalculator) {
+    public QuoteSessionTotalsService(PricingPolicyRepository pricingRepo,
+                                     QuoteCalculator quoteCalculator,
+                                     NozzleOptionRepository nozzleOptionRepo) {
         this.pricingRepo = pricingRepo;
         this.quoteCalculator = quoteCalculator;
+        this.nozzleOptionRepo = nozzleOptionRepo;
     }
 
     public QuoteSessionTotals compute(QuoteSession session, List<QuoteLineItem> items) {
@@ -43,7 +50,9 @@ public class QuoteSessionTotalsService {
         BigDecimal cadTotal = calculateCadTotal(session);
         BigDecimal itemsTotal = printItemsTotal.add(cadTotal);
 
-        BigDecimal setupFee = session.getSetupCostChf() != null ? session.getSetupCostChf() : BigDecimal.ZERO;
+        BigDecimal baseSetupFee = session.getSetupCostChf() != null ? session.getSetupCostChf() : BigDecimal.ZERO;
+        BigDecimal nozzleChangeCost = calculateNozzleChangeCost(items);
+        BigDecimal setupFee = baseSetupFee.add(nozzleChangeCost).setScale(2, RoundingMode.HALF_UP);
         BigDecimal shippingCost = calculateShippingCost(items);
         BigDecimal grandTotal = itemsTotal.add(setupFee).add(shippingCost);
 
@@ -52,6 +61,8 @@ public class QuoteSessionTotalsService {
                 globalMachineCost,
                 cadTotal,
                 itemsTotal,
+                baseSetupFee.setScale(2, RoundingMode.HALF_UP),
+                nozzleChangeCost,
                 setupFee,
                 shippingCost,
                 grandTotal,
@@ -104,6 +115,36 @@ public class QuoteSessionTotalsService {
         return BigDecimal.valueOf(2.00);
     }
 
+    private BigDecimal calculateNozzleChangeCost(List<QuoteLineItem> items) {
+        if (items == null || items.isEmpty()) {
+            return BigDecimal.ZERO.setScale(2, RoundingMode.HALF_UP);
+        }
+
+        Set<BigDecimal> uniqueNozzles = new LinkedHashSet<>();
+        for (QuoteLineItem item : items) {
+            if (item == null || item.getNozzleDiameterMm() == null) {
+                continue;
+            }
+            uniqueNozzles.add(item.getNozzleDiameterMm().setScale(2, RoundingMode.HALF_UP));
+        }
+
+        BigDecimal totalFee = BigDecimal.ZERO;
+        for (BigDecimal nozzle : uniqueNozzles) {
+            BigDecimal nozzleFee = nozzleOptionRepo
+                    .findFirstByNozzleDiameterMmAndIsActiveTrue(nozzle)
+                    .map(option -> option.getExtraNozzleChangeFeeChf() != null
+                            ? option.getExtraNozzleChangeFeeChf()
+                            : BigDecimal.ZERO)
+                    .orElse(BigDecimal.ZERO);
+
+            if (nozzleFee.compareTo(BigDecimal.ZERO) > 0) {
+                totalFee = totalFee.add(nozzleFee);
+            }
+        }
+
+        return totalFee.setScale(2, RoundingMode.HALF_UP);
+    }
+
     private int normalizeQuantity(Integer quantity) {
         if (quantity == null || quantity < 1) {
             return 1;
@@ -116,6 +157,8 @@ public class QuoteSessionTotalsService {
             BigDecimal globalMachineCostChf,
             BigDecimal cadTotalChf,
             BigDecimal itemsTotalChf,
+            BigDecimal baseSetupCostChf,
+            BigDecimal nozzleChangeCostChf,
             BigDecimal setupCostChf,
             BigDecimal shippingCostChf,
             BigDecimal grandTotalChf,

backend/src/main/java/com/printcalculator/service/admin/AdminFilamentControllerService.java

@@ -0,0 +1,327 @@
+package com.printcalculator.service.admin;
+
+import com.printcalculator.dto.AdminFilamentMaterialTypeDto;
+import com.printcalculator.dto.AdminFilamentVariantDto;
+import com.printcalculator.dto.AdminUpsertFilamentMaterialTypeRequest;
+import com.printcalculator.dto.AdminUpsertFilamentVariantRequest;
+import com.printcalculator.entity.FilamentMaterialType;
+import com.printcalculator.entity.FilamentVariant;
+import com.printcalculator.repository.FilamentMaterialTypeRepository;
+import com.printcalculator.repository.FilamentVariantRepository;
+import com.printcalculator.repository.OrderItemRepository;
+import com.printcalculator.repository.QuoteLineItemRepository;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.math.BigDecimal;
+import java.time.OffsetDateTime;
+import java.util.Comparator;
+import java.util.List;
+import java.util.Locale;
+import java.util.Set;
+import java.util.regex.Pattern;
+
+import static org.springframework.http.HttpStatus.BAD_REQUEST;
+import static org.springframework.http.HttpStatus.CONFLICT;
+import static org.springframework.http.HttpStatus.NOT_FOUND;
+
+@Service
+@Transactional(readOnly = true)
+public class AdminFilamentControllerService {
+    private static final BigDecimal MAX_NUMERIC_6_3 = new BigDecimal("999.999");
+    private static final Pattern HEX_COLOR_PATTERN = Pattern.compile("^#[0-9A-Fa-f]{6}$");
+    private static final Set<String> ALLOWED_FINISH_TYPES = Set.of(
+            "GLOSSY", "MATTE", "MARBLE", "SILK", "TRANSLUCENT", "SPECIAL"
+    );
+
+    private final FilamentMaterialTypeRepository materialRepo;
+    private final FilamentVariantRepository variantRepo;
+    private final QuoteLineItemRepository quoteLineItemRepo;
+    private final OrderItemRepository orderItemRepo;
+
+    public AdminFilamentControllerService(FilamentMaterialTypeRepository materialRepo,
+                                          FilamentVariantRepository variantRepo,
+                                          QuoteLineItemRepository quoteLineItemRepo,
+                                          OrderItemRepository orderItemRepo) {
+        this.materialRepo = materialRepo;
+        this.variantRepo = variantRepo;
+        this.quoteLineItemRepo = quoteLineItemRepo;
+        this.orderItemRepo = orderItemRepo;
+    }
+
+    public List<AdminFilamentMaterialTypeDto> getMaterials() {
+        return materialRepo.findAll().stream()
+                .sorted(Comparator.comparing(FilamentMaterialType::getMaterialCode, String.CASE_INSENSITIVE_ORDER))
+                .map(this::toMaterialDto)
+                .toList();
+    }
+
+    public List<AdminFilamentVariantDto> getVariants() {
+        return variantRepo.findAll().stream()
+                .sorted(Comparator
+                        .comparing((FilamentVariant variant) -> {
+                            FilamentMaterialType type = variant.getFilamentMaterialType();
+                            return type != null && type.getMaterialCode() != null ? type.getMaterialCode() : "";
+                        }, String.CASE_INSENSITIVE_ORDER)
+                        .thenComparing(variant -> variant.getVariantDisplayName() != null ? variant.getVariantDisplayName() : "", String.CASE_INSENSITIVE_ORDER))
+                .map(this::toVariantDto)
+                .toList();
+    }
+
+    @Transactional
+    public AdminFilamentMaterialTypeDto createMaterial(AdminUpsertFilamentMaterialTypeRequest payload) {
+        String materialCode = normalizeAndValidateMaterialCode(payload);
+        ensureMaterialCodeAvailable(materialCode, null);
+
+        FilamentMaterialType material = new FilamentMaterialType();
+        applyMaterialPayload(material, payload, materialCode);
+        FilamentMaterialType saved = materialRepo.save(material);
+        return toMaterialDto(saved);
+    }
+
+    @Transactional
+    public AdminFilamentMaterialTypeDto updateMaterial(Long materialTypeId, AdminUpsertFilamentMaterialTypeRequest payload) {
+        FilamentMaterialType material = materialRepo.findById(materialTypeId)
+                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Filament material not found"));
+
+        String materialCode = normalizeAndValidateMaterialCode(payload);
+        ensureMaterialCodeAvailable(materialCode, materialTypeId);
+
+        applyMaterialPayload(material, payload, materialCode);
+        FilamentMaterialType saved = materialRepo.save(material);
+        return toMaterialDto(saved);
+    }
+
+    @Transactional
+    public AdminFilamentVariantDto createVariant(AdminUpsertFilamentVariantRequest payload) {
+        FilamentMaterialType material = validateAndResolveMaterial(payload);
+        String normalizedDisplayName = normalizeAndValidateVariantDisplayName(payload.getVariantDisplayName());
+        String normalizedColorName = normalizeAndValidateColorName(payload.getColorName());
+        validateNumericPayload(payload);
+        ensureVariantDisplayNameAvailable(material, normalizedDisplayName, null);
+
+        FilamentVariant variant = new FilamentVariant();
+        variant.setCreatedAt(OffsetDateTime.now());
+        applyVariantPayload(variant, payload, material, normalizedDisplayName, normalizedColorName);
+        FilamentVariant saved = variantRepo.save(variant);
+        return toVariantDto(saved);
+    }
+
+    @Transactional
+    public AdminFilamentVariantDto updateVariant(Long variantId, AdminUpsertFilamentVariantRequest payload) {
+        FilamentVariant variant = variantRepo.findById(variantId)
+                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Filament variant not found"));
+
+        FilamentMaterialType material = validateAndResolveMaterial(payload);
+        String normalizedDisplayName = normalizeAndValidateVariantDisplayName(payload.getVariantDisplayName());
+        String normalizedColorName = normalizeAndValidateColorName(payload.getColorName());
+        validateNumericPayload(payload);
+        ensureVariantDisplayNameAvailable(material, normalizedDisplayName, variantId);
+
+        applyVariantPayload(variant, payload, material, normalizedDisplayName, normalizedColorName);
+        FilamentVariant saved = variantRepo.save(variant);
+        return toVariantDto(saved);
+    }
+
+    @Transactional
+    public void deleteVariant(Long variantId) {
+        FilamentVariant variant = variantRepo.findById(variantId)
+                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Filament variant not found"));
+
+        if (quoteLineItemRepo.existsByFilamentVariant_Id(variantId) || orderItemRepo.existsByFilamentVariant_Id(variantId)) {
+            throw new ResponseStatusException(CONFLICT, "Variant is already used in quotes/orders and cannot be deleted");
+        }
+
+        variantRepo.delete(variant);
+    }
+
+    private void applyMaterialPayload(FilamentMaterialType material,
+                                      AdminUpsertFilamentMaterialTypeRequest payload,
+                                      String normalizedMaterialCode) {
+        boolean isFlexible = payload != null && Boolean.TRUE.equals(payload.getIsFlexible());
+        boolean isTechnical = payload != null && Boolean.TRUE.equals(payload.getIsTechnical());
+        String technicalTypeLabel = payload != null && payload.getTechnicalTypeLabel() != null
+                ? payload.getTechnicalTypeLabel().trim()
+                : null;
+
+        material.setMaterialCode(normalizedMaterialCode);
+        material.setIsFlexible(isFlexible);
+        material.setIsTechnical(isTechnical);
+        material.setTechnicalTypeLabel(isTechnical && technicalTypeLabel != null && !technicalTypeLabel.isBlank()
+                ? technicalTypeLabel
+                : null);
+    }
+
+    private void applyVariantPayload(FilamentVariant variant,
+                                     AdminUpsertFilamentVariantRequest payload,
+                                     FilamentMaterialType material,
+                                     String normalizedDisplayName,
+                                     String normalizedColorName) {
+        String normalizedColorHex = normalizeAndValidateColorHex(payload.getColorHex());
+        String normalizedFinishType = normalizeAndValidateFinishType(payload.getFinishType(), payload.getIsMatte());
+        String normalizedBrand = normalizeOptional(payload.getBrand());
+
+        variant.setFilamentMaterialType(material);
+        variant.setVariantDisplayName(normalizedDisplayName);
+        variant.setColorName(normalizedColorName);
+        variant.setColorHex(normalizedColorHex);
+        variant.setFinishType(normalizedFinishType);
+        variant.setBrand(normalizedBrand);
+        variant.setIsMatte(Boolean.TRUE.equals(payload.getIsMatte()) || "MATTE".equals(normalizedFinishType));
+        variant.setIsSpecial(Boolean.TRUE.equals(payload.getIsSpecial()));
+        variant.setCostChfPerKg(payload.getCostChfPerKg());
+        variant.setStockSpools(payload.getStockSpools());
+        variant.setSpoolNetKg(payload.getSpoolNetKg());
+        variant.setIsActive(payload.getIsActive() == null || payload.getIsActive());
+    }
+
+    private String normalizeAndValidateMaterialCode(AdminUpsertFilamentMaterialTypeRequest payload) {
+        if (payload == null || payload.getMaterialCode() == null || payload.getMaterialCode().isBlank()) {
+            throw new ResponseStatusException(BAD_REQUEST, "Material code is required");
+        }
+        return payload.getMaterialCode().trim().toUpperCase(Locale.ROOT);
+    }
+
+    private String normalizeAndValidateVariantDisplayName(String value) {
+        if (value == null || value.isBlank()) {
+            throw new ResponseStatusException(BAD_REQUEST, "Variant display name is required");
+        }
+        return value.trim();
+    }
+
+    private String normalizeAndValidateColorName(String value) {
+        if (value == null || value.isBlank()) {
+            throw new ResponseStatusException(BAD_REQUEST, "Color name is required");
+        }
+        return value.trim();
+    }
+
+    private String normalizeAndValidateColorHex(String value) {
+        if (value == null || value.isBlank()) {
+            return null;
+        }
+        String normalized = value.trim();
+        if (!HEX_COLOR_PATTERN.matcher(normalized).matches()) {
+            throw new ResponseStatusException(BAD_REQUEST, "Color hex must be in format #RRGGBB");
+        }
+        return normalized.toUpperCase(Locale.ROOT);
+    }
+
+    private String normalizeAndValidateFinishType(String finishType, Boolean isMatte) {
+        String normalized = finishType == null || finishType.isBlank()
+                ? (Boolean.TRUE.equals(isMatte) ? "MATTE" : "GLOSSY")
+                : finishType.trim().toUpperCase(Locale.ROOT);
+        if (!ALLOWED_FINISH_TYPES.contains(normalized)) {
+            throw new ResponseStatusException(BAD_REQUEST, "Invalid finish type");
+        }
+        return normalized;
+    }
+
+    private String normalizeOptional(String value) {
+        if (value == null) {
+            return null;
+        }
+        String normalized = value.trim();
+        return normalized.isBlank() ? null : normalized;
+    }
+
+    private FilamentMaterialType validateAndResolveMaterial(AdminUpsertFilamentVariantRequest payload) {
+        if (payload == null || payload.getMaterialTypeId() == null) {
+            throw new ResponseStatusException(BAD_REQUEST, "Material type id is required");
+        }
+
+        return materialRepo.findById(payload.getMaterialTypeId())
+                .orElseThrow(() -> new ResponseStatusException(BAD_REQUEST, "Material type not found"));
+    }
+
+    private void validateNumericPayload(AdminUpsertFilamentVariantRequest payload) {
+        if (payload.getCostChfPerKg() == null || payload.getCostChfPerKg().compareTo(BigDecimal.ZERO) < 0) {
+            throw new ResponseStatusException(BAD_REQUEST, "Cost CHF/kg must be >= 0");
+        }
+        validateNumeric63(payload.getStockSpools(), "Stock spools", true);
+        validateNumeric63(payload.getSpoolNetKg(), "Spool net kg", false);
+    }
+
+    private void validateNumeric63(BigDecimal value, String fieldName, boolean allowZero) {
+        if (value == null) {
+            throw new ResponseStatusException(BAD_REQUEST, fieldName + " is required");
+        }
+
+        if (allowZero) {
+            if (value.compareTo(BigDecimal.ZERO) < 0) {
+                throw new ResponseStatusException(BAD_REQUEST, fieldName + " must be >= 0");
+            }
+        } else if (value.compareTo(BigDecimal.ZERO) <= 0) {
+            throw new ResponseStatusException(BAD_REQUEST, fieldName + " must be > 0");
+        }
+
+        if (value.scale() > 3) {
+            throw new ResponseStatusException(BAD_REQUEST, fieldName + " must have at most 3 decimal places");
+        }
+
+        if (value.compareTo(MAX_NUMERIC_6_3) > 0) {
+            throw new ResponseStatusException(BAD_REQUEST, fieldName + " must be <= 999.999");
+        }
+    }
+
+    private void ensureMaterialCodeAvailable(String materialCode, Long currentMaterialId) {
+        materialRepo.findByMaterialCode(materialCode).ifPresent(existing -> {
+            if (currentMaterialId == null || !existing.getId().equals(currentMaterialId)) {
+                throw new ResponseStatusException(BAD_REQUEST, "Material code already exists");
+            }
+        });
+    }
+
+    private void ensureVariantDisplayNameAvailable(FilamentMaterialType material, String displayName, Long currentVariantId) {
+        variantRepo.findByFilamentMaterialTypeAndVariantDisplayName(material, displayName).ifPresent(existing -> {
+            if (currentVariantId == null || !existing.getId().equals(currentVariantId)) {
+                throw new ResponseStatusException(BAD_REQUEST, "Variant display name already exists for this material");
+            }
+        });
+    }
+
+    private AdminFilamentMaterialTypeDto toMaterialDto(FilamentMaterialType material) {
+        AdminFilamentMaterialTypeDto dto = new AdminFilamentMaterialTypeDto();
+        dto.setId(material.getId());
+        dto.setMaterialCode(material.getMaterialCode());
+        dto.setIsFlexible(material.getIsFlexible());
+        dto.setIsTechnical(material.getIsTechnical());
+        dto.setTechnicalTypeLabel(material.getTechnicalTypeLabel());
+        return dto;
+    }
+
+    private AdminFilamentVariantDto toVariantDto(FilamentVariant variant) {
+        AdminFilamentVariantDto dto = new AdminFilamentVariantDto();
+        dto.setId(variant.getId());
+
+        FilamentMaterialType material = variant.getFilamentMaterialType();
+        if (material != null) {
+            dto.setMaterialTypeId(material.getId());
+            dto.setMaterialCode(material.getMaterialCode());
+            dto.setMaterialIsFlexible(material.getIsFlexible());
+            dto.setMaterialIsTechnical(material.getIsTechnical());
+            dto.setMaterialTechnicalTypeLabel(material.getTechnicalTypeLabel());
+        }
+
+        dto.setVariantDisplayName(variant.getVariantDisplayName());
+        dto.setColorName(variant.getColorName());
+        dto.setColorHex(variant.getColorHex());
+        dto.setFinishType(variant.getFinishType());
+        dto.setBrand(variant.getBrand());
+        dto.setIsMatte(variant.getIsMatte());
+        dto.setIsSpecial(variant.getIsSpecial());
+        dto.setCostChfPerKg(variant.getCostChfPerKg());
+        dto.setStockSpools(variant.getStockSpools());
+        dto.setSpoolNetKg(variant.getSpoolNetKg());
+        BigDecimal stockKg = BigDecimal.ZERO;
+        if (variant.getStockSpools() != null && variant.getSpoolNetKg() != null) {
+            stockKg = variant.getStockSpools().multiply(variant.getSpoolNetKg());
+        }
+        dto.setStockKg(stockKg);
+        dto.setStockFilamentGrams(stockKg.multiply(BigDecimal.valueOf(1000)));
+        dto.setIsActive(variant.getIsActive());
+        dto.setCreatedAt(variant.getCreatedAt());
+        return dto;
+    }
+}

backend/src/main/java/com/printcalculator/service/admin/AdminOperationsControllerService.java

@@ -0,0 +1,469 @@
+package com.printcalculator.service.admin;
+
+import com.printcalculator.dto.AdminCadInvoiceCreateRequest;
+import com.printcalculator.dto.AdminCadInvoiceDto;
+import com.printcalculator.dto.AdminContactRequestAttachmentDto;
+import com.printcalculator.dto.AdminContactRequestDetailDto;
+import com.printcalculator.dto.AdminContactRequestDto;
+import com.printcalculator.dto.AdminFilamentStockDto;
+import com.printcalculator.dto.AdminQuoteSessionDto;
+import com.printcalculator.dto.AdminUpdateContactRequestStatusRequest;
+import com.printcalculator.entity.CustomQuoteRequest;
+import com.printcalculator.entity.CustomQuoteRequestAttachment;
+import com.printcalculator.entity.FilamentVariant;
+import com.printcalculator.entity.FilamentVariantStockKg;
+import com.printcalculator.entity.Order;
+import com.printcalculator.entity.QuoteLineItem;
+import com.printcalculator.entity.QuoteSession;
+import com.printcalculator.repository.CustomQuoteRequestAttachmentRepository;
+import com.printcalculator.repository.CustomQuoteRequestRepository;
+import com.printcalculator.repository.FilamentVariantRepository;
+import com.printcalculator.repository.FilamentVariantStockKgRepository;
+import com.printcalculator.repository.OrderRepository;
+import com.printcalculator.repository.PricingPolicyRepository;
+import com.printcalculator.repository.QuoteLineItemRepository;
+import com.printcalculator.repository.QuoteSessionRepository;
+import com.printcalculator.service.QuoteSessionTotalsService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.core.io.Resource;
+import org.springframework.core.io.UrlResource;
+import org.springframework.data.domain.Sort;
+import org.springframework.http.ContentDisposition;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+import java.net.MalformedURLException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.time.OffsetDateTime;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import static org.springframework.http.HttpStatus.BAD_REQUEST;
+import static org.springframework.http.HttpStatus.CONFLICT;
+import static org.springframework.http.HttpStatus.INTERNAL_SERVER_ERROR;
+import static org.springframework.http.HttpStatus.NOT_FOUND;
+
+@Service
+@Transactional(readOnly = true)
+public class AdminOperationsControllerService {
+    private static final Logger logger = LoggerFactory.getLogger(AdminOperationsControllerService.class);
+    private static final Path CONTACT_ATTACHMENTS_ROOT = Paths.get("storage_requests").toAbsolutePath().normalize();
+    private static final Set<String> CONTACT_REQUEST_ALLOWED_STATUSES = Set.of(
+            "NEW", "PENDING", "IN_PROGRESS", "DONE", "CLOSED"
+    );
+
+    private final FilamentVariantStockKgRepository filamentStockRepo;
+    private final FilamentVariantRepository filamentVariantRepo;
+    private final CustomQuoteRequestRepository customQuoteRequestRepo;
+    private final CustomQuoteRequestAttachmentRepository customQuoteRequestAttachmentRepo;
+    private final QuoteSessionRepository quoteSessionRepo;
+    private final QuoteLineItemRepository quoteLineItemRepo;
+    private final OrderRepository orderRepo;
+    private final PricingPolicyRepository pricingRepo;
+    private final QuoteSessionTotalsService quoteSessionTotalsService;
+
+    public AdminOperationsControllerService(FilamentVariantStockKgRepository filamentStockRepo,
+                                            FilamentVariantRepository filamentVariantRepo,
+                                            CustomQuoteRequestRepository customQuoteRequestRepo,
+                                            CustomQuoteRequestAttachmentRepository customQuoteRequestAttachmentRepo,
+                                            QuoteSessionRepository quoteSessionRepo,
+                                            QuoteLineItemRepository quoteLineItemRepo,
+                                            OrderRepository orderRepo,
+                                            PricingPolicyRepository pricingRepo,
+                                            QuoteSessionTotalsService quoteSessionTotalsService) {
+        this.filamentStockRepo = filamentStockRepo;
+        this.filamentVariantRepo = filamentVariantRepo;
+        this.customQuoteRequestRepo = customQuoteRequestRepo;
+        this.customQuoteRequestAttachmentRepo = customQuoteRequestAttachmentRepo;
+        this.quoteSessionRepo = quoteSessionRepo;
+        this.quoteLineItemRepo = quoteLineItemRepo;
+        this.orderRepo = orderRepo;
+        this.pricingRepo = pricingRepo;
+        this.quoteSessionTotalsService = quoteSessionTotalsService;
+    }
+
+    public List<AdminFilamentStockDto> getFilamentStock() {
+        List<FilamentVariantStockKg> stocks = filamentStockRepo.findAll(Sort.by(Sort.Direction.ASC, "stockKg"));
+        Set<Long> variantIds = stocks.stream()
+                .map(FilamentVariantStockKg::getFilamentVariantId)
+                .collect(Collectors.toSet());
+
+        Map<Long, FilamentVariant> variantsById;
+        if (variantIds.isEmpty()) {
+            variantsById = Collections.emptyMap();
+        } else {
+            variantsById = filamentVariantRepo.findAllById(variantIds).stream()
+                    .collect(Collectors.toMap(FilamentVariant::getId, variant -> variant));
+        }
+
+        return stocks.stream().map(stock -> {
+            FilamentVariant variant = variantsById.get(stock.getFilamentVariantId());
+            AdminFilamentStockDto dto = new AdminFilamentStockDto();
+            dto.setFilamentVariantId(stock.getFilamentVariantId());
+            dto.setStockSpools(stock.getStockSpools());
+            dto.setSpoolNetKg(stock.getSpoolNetKg());
+            dto.setStockKg(stock.getStockKg());
+            BigDecimal grams = stock.getStockKg() != null
+                    ? stock.getStockKg().multiply(BigDecimal.valueOf(1000))
+                    : BigDecimal.ZERO;
+            dto.setStockFilamentGrams(grams);
+
+            if (variant != null) {
+                dto.setMaterialCode(
+                        variant.getFilamentMaterialType() != null
+                                ? variant.getFilamentMaterialType().getMaterialCode()
+                                : "UNKNOWN"
+                );
+                dto.setVariantDisplayName(variant.getVariantDisplayName());
+                dto.setColorName(variant.getColorName());
+                dto.setActive(variant.getIsActive());
+            } else {
+                dto.setMaterialCode("UNKNOWN");
+                dto.setVariantDisplayName("Variant " + stock.getFilamentVariantId());
+                dto.setColorName("-");
+                dto.setActive(false);
+            }
+
+            return dto;
+        }).toList();
+    }
+
+    public List<AdminContactRequestDto> getContactRequests() {
+        return customQuoteRequestRepo.findAll(Sort.by(Sort.Direction.DESC, "createdAt"))
+                .stream()
+                .map(this::toContactRequestDto)
+                .toList();
+    }
+
+    public AdminContactRequestDetailDto getContactRequestDetail(UUID requestId) {
+        CustomQuoteRequest request = customQuoteRequestRepo.findById(requestId)
+                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Contact request not found"));
+
+        List<AdminContactRequestAttachmentDto> attachments = customQuoteRequestAttachmentRepo
+                .findByRequest_IdOrderByCreatedAtAsc(requestId)
+                .stream()
+                .map(this::toContactRequestAttachmentDto)
+                .toList();
+
+        return toContactRequestDetailDto(request, attachments);
+    }
+
+    @Transactional
+    public AdminContactRequestDetailDto updateContactRequestStatus(UUID requestId,
+                                                                   AdminUpdateContactRequestStatusRequest payload) {
+        CustomQuoteRequest request = customQuoteRequestRepo.findById(requestId)
+                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Contact request not found"));
+
+        String requestedStatus = payload != null && payload.getStatus() != null
+                ? payload.getStatus().trim().toUpperCase(Locale.ROOT)
+                : "";
+
+        if (!CONTACT_REQUEST_ALLOWED_STATUSES.contains(requestedStatus)) {
+            throw new ResponseStatusException(
+                    BAD_REQUEST,
+                    "Invalid status. Allowed: " + String.join(", ", CONTACT_REQUEST_ALLOWED_STATUSES)
+            );
+        }
+
+        request.setStatus(requestedStatus);
+        request.setUpdatedAt(OffsetDateTime.now());
+        CustomQuoteRequest saved = customQuoteRequestRepo.save(request);
+
+        List<AdminContactRequestAttachmentDto> attachments = customQuoteRequestAttachmentRepo
+                .findByRequest_IdOrderByCreatedAtAsc(requestId)
+                .stream()
+                .map(this::toContactRequestAttachmentDto)
+                .toList();
+
+        return toContactRequestDetailDto(saved, attachments);
+    }
+
+    public ResponseEntity<Resource> downloadContactRequestAttachment(UUID requestId, UUID attachmentId) {
+        CustomQuoteRequestAttachment attachment = customQuoteRequestAttachmentRepo.findById(attachmentId)
+                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Attachment not found"));
+
+        if (!attachment.getRequest().getId().equals(requestId)) {
+            throw new ResponseStatusException(NOT_FOUND, "Attachment not found for request");
+        }
+
+        String relativePath = attachment.getStoredRelativePath();
+        if (relativePath == null || relativePath.isBlank() || "PENDING".equals(relativePath)) {
+            throw new ResponseStatusException(NOT_FOUND, "Attachment file not available");
+        }
+
+        String expectedPrefix = "quote-requests/" + requestId + "/attachments/" + attachmentId + "/";
+        if (!relativePath.startsWith(expectedPrefix)) {
+            throw new ResponseStatusException(NOT_FOUND, "Attachment file not available");
+        }
+
+        Path filePath = CONTACT_ATTACHMENTS_ROOT.resolve(relativePath).normalize();
+        if (!filePath.startsWith(CONTACT_ATTACHMENTS_ROOT)) {
+            throw new ResponseStatusException(NOT_FOUND, "Attachment file not available");
+        }
+
+        if (!Files.exists(filePath)) {
+            throw new ResponseStatusException(NOT_FOUND, "Attachment file not available");
+        }
+
+        try {
+            Resource resource = new UrlResource(filePath.toUri());
+            if (!resource.exists() || !resource.isReadable()) {
+                throw new ResponseStatusException(NOT_FOUND, "Attachment file not available");
+            }
+
+            MediaType mediaType = MediaType.APPLICATION_OCTET_STREAM;
+            String mimeType = attachment.getMimeType();
+            if (mimeType != null && !mimeType.isBlank()) {
+                try {
+                    mediaType = MediaType.parseMediaType(mimeType);
+                } catch (Exception ignored) {
+                    mediaType = MediaType.APPLICATION_OCTET_STREAM;
+                }
+            }
+
+            String filename = attachment.getOriginalFilename();
+            if (filename == null || filename.isBlank()) {
+                filename = attachment.getStoredFilename() != null && !attachment.getStoredFilename().isBlank()
+                        ? attachment.getStoredFilename()
+                        : "attachment-" + attachmentId;
+            }
+
+            return ResponseEntity.ok()
+                    .contentType(mediaType)
+                    .header(HttpHeaders.CONTENT_DISPOSITION, ContentDisposition.attachment()
+                            .filename(filename, StandardCharsets.UTF_8)
+                            .build()
+                            .toString())
+                    .body(resource);
+        } catch (MalformedURLException e) {
+            throw new ResponseStatusException(NOT_FOUND, "Attachment file not available");
+        }
+    }
+
+    public List<AdminQuoteSessionDto> getQuoteSessions() {
+        return quoteSessionRepo.findAll(Sort.by(Sort.Direction.DESC, "createdAt"))
+                .stream()
+                .map(this::toQuoteSessionDto)
+                .toList();
+    }
+
+    public List<AdminCadInvoiceDto> getCadInvoices() {
+        return quoteSessionRepo.findByStatusInOrderByCreatedAtDesc(List.of("CAD_ACTIVE", "CONVERTED"))
+                .stream()
+                .filter(this::isCadSessionRecord)
+                .map(this::toCadInvoiceDto)
+                .toList();
+    }
+
+    @Transactional
+    public AdminCadInvoiceDto createOrUpdateCadInvoice(AdminCadInvoiceCreateRequest payload) {
+        if (payload == null || payload.getCadHours() == null) {
+            throw new ResponseStatusException(BAD_REQUEST, "cadHours is required");
+        }
+
+        BigDecimal cadHours = payload.getCadHours().setScale(2, RoundingMode.HALF_UP);
+        if (cadHours.compareTo(BigDecimal.ZERO) <= 0) {
+            throw new ResponseStatusException(BAD_REQUEST, "cadHours must be > 0");
+        }
+
+        BigDecimal cadRate = payload.getCadHourlyRateChf();
+        if (cadRate == null || cadRate.compareTo(BigDecimal.ZERO) <= 0) {
+            var policy = pricingRepo.findFirstByIsActiveTrueOrderByValidFromDesc();
+            cadRate = policy != null && policy.getCadCostChfPerHour() != null
+                    ? policy.getCadCostChfPerHour()
+                    : BigDecimal.ZERO;
+        }
+        cadRate = cadRate.setScale(2, RoundingMode.HALF_UP);
+
+        QuoteSession session;
+        if (payload.getSessionId() != null) {
+            session = quoteSessionRepo.findById(payload.getSessionId())
+                    .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Session not found"));
+        } else {
+            session = new QuoteSession();
+            session.setStatus("CAD_ACTIVE");
+            session.setPricingVersion("v1");
+            session.setMaterialCode("PLA");
+            session.setNozzleDiameterMm(BigDecimal.valueOf(0.4));
+            session.setLayerHeightMm(BigDecimal.valueOf(0.2));
+            session.setInfillPattern("grid");
+            session.setInfillPercent(20);
+            session.setSupportsEnabled(false);
+            session.setSetupCostChf(BigDecimal.ZERO);
+            session.setCreatedAt(OffsetDateTime.now());
+            session.setExpiresAt(OffsetDateTime.now().plusDays(30));
+        }
+
+        if ("CONVERTED".equals(session.getStatus())) {
+            throw new ResponseStatusException(CONFLICT, "Session already converted to order");
+        }
+
+        if (payload.getSourceRequestId() != null) {
+            if (!customQuoteRequestRepo.existsById(payload.getSourceRequestId())) {
+                throw new ResponseStatusException(NOT_FOUND, "Source request not found");
+            }
+            session.setSourceRequestId(payload.getSourceRequestId());
+        } else {
+            session.setSourceRequestId(null);
+        }
+
+        session.setStatus("CAD_ACTIVE");
+        session.setCadHours(cadHours);
+        session.setCadHourlyRateChf(cadRate);
+        if (payload.getNotes() != null) {
+            String trimmedNotes = payload.getNotes().trim();
+            session.setNotes(trimmedNotes.isEmpty() ? null : trimmedNotes);
+        }
+
+        QuoteSession saved = quoteSessionRepo.save(session);
+        return toCadInvoiceDto(saved);
+    }
+
+    @Transactional
+    public void deleteQuoteSession(UUID sessionId) {
+        QuoteSession session = quoteSessionRepo.findById(sessionId)
+                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Session not found"));
+
+        if (orderRepo.existsBySourceQuoteSession_Id(sessionId)) {
+            throw new ResponseStatusException(CONFLICT, "Cannot delete session already linked to an order");
+        }
+
+        deleteSessionFiles(sessionId);
+        quoteSessionRepo.delete(session);
+    }
+
+    private AdminContactRequestDto toContactRequestDto(CustomQuoteRequest request) {
+        AdminContactRequestDto dto = new AdminContactRequestDto();
+        dto.setId(request.getId());
+        dto.setRequestType(request.getRequestType());
+        dto.setCustomerType(request.getCustomerType());
+        dto.setEmail(request.getEmail());
+        dto.setPhone(request.getPhone());
+        dto.setName(request.getName());
+        dto.setCompanyName(request.getCompanyName());
+        dto.setStatus(request.getStatus());
+        dto.setCreatedAt(request.getCreatedAt());
+        return dto;
+    }
+
+    private AdminContactRequestAttachmentDto toContactRequestAttachmentDto(CustomQuoteRequestAttachment attachment) {
+        AdminContactRequestAttachmentDto dto = new AdminContactRequestAttachmentDto();
+        dto.setId(attachment.getId());
+        dto.setOriginalFilename(attachment.getOriginalFilename());
+        dto.setMimeType(attachment.getMimeType());
+        dto.setFileSizeBytes(attachment.getFileSizeBytes());
+        dto.setCreatedAt(attachment.getCreatedAt());
+        return dto;
+    }
+
+    private AdminContactRequestDetailDto toContactRequestDetailDto(CustomQuoteRequest request,
+                                                                    List<AdminContactRequestAttachmentDto> attachments) {
+        AdminContactRequestDetailDto dto = new AdminContactRequestDetailDto();
+        dto.setId(request.getId());
+        dto.setRequestType(request.getRequestType());
+        dto.setCustomerType(request.getCustomerType());
+        dto.setEmail(request.getEmail());
+        dto.setPhone(request.getPhone());
+        dto.setName(request.getName());
+        dto.setCompanyName(request.getCompanyName());
+        dto.setContactPerson(request.getContactPerson());
+        dto.setMessage(request.getMessage());
+        dto.setStatus(request.getStatus());
+        dto.setCreatedAt(request.getCreatedAt());
+        dto.setUpdatedAt(request.getUpdatedAt());
+        dto.setAttachments(attachments);
+        return dto;
+    }
+
+    private AdminQuoteSessionDto toQuoteSessionDto(QuoteSession session) {
+        AdminQuoteSessionDto dto = new AdminQuoteSessionDto();
+        dto.setId(session.getId());
+        dto.setStatus(session.getStatus());
+        dto.setMaterialCode(session.getMaterialCode());
+        dto.setCreatedAt(session.getCreatedAt());
+        dto.setExpiresAt(session.getExpiresAt());
+        dto.setConvertedOrderId(session.getConvertedOrderId());
+        dto.setSourceRequestId(session.getSourceRequestId());
+        dto.setCadHours(session.getCadHours());
+        dto.setCadHourlyRateChf(session.getCadHourlyRateChf());
+        dto.setCadTotalChf(quoteSessionTotalsService.calculateCadTotal(session));
+        return dto;
+    }
+
+    private boolean isCadSessionRecord(QuoteSession session) {
+        if ("CAD_ACTIVE".equals(session.getStatus())) {
+            return true;
+        }
+        if (!"CONVERTED".equals(session.getStatus())) {
+            return false;
+        }
+        BigDecimal cadHours = session.getCadHours() != null ? session.getCadHours() : BigDecimal.ZERO;
+        return cadHours.compareTo(BigDecimal.ZERO) > 0 || session.getSourceRequestId() != null;
+    }
+
+    private AdminCadInvoiceDto toCadInvoiceDto(QuoteSession session) {
+        List<QuoteLineItem> items = quoteLineItemRepo.findByQuoteSessionId(session.getId());
+        QuoteSessionTotalsService.QuoteSessionTotals totals = quoteSessionTotalsService.compute(session, items);
+
+        AdminCadInvoiceDto dto = new AdminCadInvoiceDto();
+        dto.setSessionId(session.getId());
+        dto.setSessionStatus(session.getStatus());
+        dto.setSourceRequestId(session.getSourceRequestId());
+        dto.setCadHours(session.getCadHours() != null ? session.getCadHours() : BigDecimal.ZERO);
+        dto.setCadHourlyRateChf(session.getCadHourlyRateChf() != null ? session.getCadHourlyRateChf() : BigDecimal.ZERO);
+        dto.setCadTotalChf(totals.cadTotalChf());
+        dto.setPrintItemsTotalChf(totals.printItemsTotalChf());
+        dto.setSetupCostChf(totals.setupCostChf());
+        dto.setShippingCostChf(totals.shippingCostChf());
+        dto.setGrandTotalChf(totals.grandTotalChf());
+        dto.setConvertedOrderId(session.getConvertedOrderId());
+        dto.setCheckoutPath("/checkout/cad?session=" + session.getId());
+        dto.setNotes(session.getNotes());
+        dto.setCreatedAt(session.getCreatedAt());
+
+        if (session.getConvertedOrderId() != null) {
+            Order order = orderRepo.findById(session.getConvertedOrderId()).orElse(null);
+            dto.setConvertedOrderStatus(order != null ? order.getStatus() : null);
+        }
+        return dto;
+    }
+
+    private void deleteSessionFiles(UUID sessionId) {
+        Path sessionDir = Paths.get("storage_quotes", sessionId.toString());
+        if (!Files.exists(sessionDir)) {
+            return;
+        }
+
+        try (Stream<Path> walk = Files.walk(sessionDir)) {
+            walk.sorted(Comparator.reverseOrder()).forEach(path -> {
+                try {
+                    Files.deleteIfExists(path);
+                } catch (IOException e) {
+                    throw new UncheckedIOException(e);
+                }
+            });
+        } catch (IOException | UncheckedIOException e) {
+            logger.error("Failed to delete files for session {}", sessionId, e);
+            throw new ResponseStatusException(INTERNAL_SERVER_ERROR, "Unable to delete session files");
+        }
+    }
+}

backend/src/main/java/com/printcalculator/service/order/AdminOrderControllerService.java

@@ -0,0 +1,435 @@
+package com.printcalculator.service.order;
+
+import com.printcalculator.dto.AddressDto;
+import com.printcalculator.dto.AdminOrderStatusUpdateRequest;
+import com.printcalculator.dto.OrderDto;
+import com.printcalculator.dto.OrderItemDto;
+import com.printcalculator.entity.Order;
+import com.printcalculator.entity.OrderItem;
+import com.printcalculator.entity.Payment;
+import com.printcalculator.entity.QuoteLineItem;
+import com.printcalculator.entity.QuoteSession;
+import com.printcalculator.event.OrderShippedEvent;
+import com.printcalculator.repository.OrderItemRepository;
+import com.printcalculator.repository.OrderRepository;
+import com.printcalculator.repository.PaymentRepository;
+import com.printcalculator.repository.QuoteLineItemRepository;
+import com.printcalculator.service.payment.InvoicePdfRenderingService;
+import com.printcalculator.service.payment.PaymentService;
+import com.printcalculator.service.payment.QrBillService;
+import com.printcalculator.service.storage.StorageService;
+import org.springframework.context.ApplicationEventPublisher;
+import org.springframework.core.io.Resource;
+import org.springframework.core.io.UrlResource;
+import org.springframework.http.ContentDisposition;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.InvalidPathException;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Comparator;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.UUID;
+
+import static org.springframework.http.HttpStatus.BAD_REQUEST;
+import static org.springframework.http.HttpStatus.NOT_FOUND;
+
+@Service
+@Transactional(readOnly = true)
+public class AdminOrderControllerService {
+    private static final Path QUOTE_STORAGE_ROOT = Paths.get("storage_quotes").toAbsolutePath().normalize();
+    private static final List<String> ALLOWED_ORDER_STATUSES = List.of(
+            "PENDING_PAYMENT",
+            "PAID",
+            "IN_PRODUCTION",
+            "SHIPPED",
+            "COMPLETED",
+            "CANCELLED"
+    );
+
+    private final OrderRepository orderRepo;
+    private final OrderItemRepository orderItemRepo;
+    private final PaymentRepository paymentRepo;
+    private final QuoteLineItemRepository quoteLineItemRepo;
+    private final PaymentService paymentService;
+    private final StorageService storageService;
+    private final InvoicePdfRenderingService invoiceService;
+    private final QrBillService qrBillService;
+    private final ApplicationEventPublisher eventPublisher;
+
+    public AdminOrderControllerService(OrderRepository orderRepo,
+                                       OrderItemRepository orderItemRepo,
+                                       PaymentRepository paymentRepo,
+                                       QuoteLineItemRepository quoteLineItemRepo,
+                                       PaymentService paymentService,
+                                       StorageService storageService,
+                                       InvoicePdfRenderingService invoiceService,
+                                       QrBillService qrBillService,
+                                       ApplicationEventPublisher eventPublisher) {
+        this.orderRepo = orderRepo;
+        this.orderItemRepo = orderItemRepo;
+        this.paymentRepo = paymentRepo;
+        this.quoteLineItemRepo = quoteLineItemRepo;
+        this.paymentService = paymentService;
+        this.storageService = storageService;
+        this.invoiceService = invoiceService;
+        this.qrBillService = qrBillService;
+        this.eventPublisher = eventPublisher;
+    }
+
+    public List<OrderDto> listOrders() {
+        return orderRepo.findAllByOrderByCreatedAtDesc()
+                .stream()
+                .map(this::toOrderDto)
+                .toList();
+    }
+
+    public OrderDto getOrder(UUID orderId) {
+        return toOrderDto(getOrderOrThrow(orderId));
+    }
+
+    @Transactional
+    public OrderDto updatePaymentMethod(UUID orderId, Map<String, String> payload) {
+        getOrderOrThrow(orderId);
+        String method = payload != null ? payload.get("method") : null;
+        if (method == null || method.isBlank()) {
+            throw new ResponseStatusException(BAD_REQUEST, "Payment method is required");
+        }
+        paymentService.updatePaymentMethod(orderId, method);
+        return toOrderDto(getOrderOrThrow(orderId));
+    }
+
+    @Transactional
+    public OrderDto updateOrderStatus(UUID orderId, AdminOrderStatusUpdateRequest payload) {
+        if (payload == null || payload.getStatus() == null || payload.getStatus().isBlank()) {
+            throw new ResponseStatusException(BAD_REQUEST, "Status is required");
+        }
+
+        Order order = getOrderOrThrow(orderId);
+        String normalizedStatus = payload.getStatus().trim().toUpperCase(Locale.ROOT);
+        if (!ALLOWED_ORDER_STATUSES.contains(normalizedStatus)) {
+            throw new ResponseStatusException(
+                    BAD_REQUEST,
+                    "Invalid order status. Allowed values: " + String.join(", ", ALLOWED_ORDER_STATUSES)
+            );
+        }
+        String previousStatus = order.getStatus();
+        order.setStatus(normalizedStatus);
+        Order savedOrder = orderRepo.save(order);
+
+        if (!"SHIPPED".equals(previousStatus) && "SHIPPED".equals(normalizedStatus)) {
+            eventPublisher.publishEvent(new OrderShippedEvent(this, savedOrder));
+        }
+
+        return toOrderDto(savedOrder);
+    }
+
+    public ResponseEntity<Resource> downloadOrderItemFile(UUID orderId, UUID orderItemId) {
+        OrderItem item = orderItemRepo.findById(orderItemId)
+                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Order item not found"));
+
+        if (!item.getOrder().getId().equals(orderId)) {
+            throw new ResponseStatusException(NOT_FOUND, "Order item not found for order");
+        }
+
+        String relativePath = item.getStoredRelativePath();
+        if (relativePath == null || relativePath.isBlank() || "PENDING".equals(relativePath)) {
+            throw new ResponseStatusException(NOT_FOUND, "File not available");
+        }
+        Path safeRelativePath = resolveOrderItemRelativePath(relativePath, orderId, orderItemId);
+        if (safeRelativePath == null) {
+            throw new ResponseStatusException(NOT_FOUND, "File not available");
+        }
+
+        try {
+            Resource resource = loadOrderItemResourceWithRecovery(item, safeRelativePath);
+            MediaType contentType = MediaType.APPLICATION_OCTET_STREAM;
+            if (item.getMimeType() != null && !item.getMimeType().isBlank()) {
+                try {
+                    contentType = MediaType.parseMediaType(item.getMimeType());
+                } catch (Exception ignored) {
+                    contentType = MediaType.APPLICATION_OCTET_STREAM;
+                }
+            }
+
+            String filename = item.getOriginalFilename() != null && !item.getOriginalFilename().isBlank()
+                    ? item.getOriginalFilename()
+                    : "order-item-" + orderItemId;
+
+            return ResponseEntity.ok()
+                    .contentType(contentType)
+                    .header(HttpHeaders.CONTENT_DISPOSITION, ContentDisposition.attachment()
+                            .filename(filename, StandardCharsets.UTF_8)
+                            .build()
+                            .toString())
+                    .body(resource);
+        } catch (ResponseStatusException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new ResponseStatusException(NOT_FOUND, "File not available");
+        }
+    }
+
+    public ResponseEntity<byte[]> downloadOrderConfirmation(UUID orderId) {
+        return generateDocument(getOrderOrThrow(orderId), true);
+    }
+
+    public ResponseEntity<byte[]> downloadOrderInvoice(UUID orderId) {
+        return generateDocument(getOrderOrThrow(orderId), false);
+    }
+
+    private Order getOrderOrThrow(UUID orderId) {
+        return orderRepo.findById(orderId)
+                .orElseThrow(() -> new ResponseStatusException(NOT_FOUND, "Order not found"));
+    }
+
+    private OrderDto toOrderDto(Order order) {
+        List<OrderItem> items = orderItemRepo.findByOrder_Id(order.getId());
+        OrderDto dto = new OrderDto();
+        dto.setId(order.getId());
+        dto.setOrderNumber(getDisplayOrderNumber(order));
+        dto.setStatus(order.getStatus());
+
+        paymentRepo.findByOrder_Id(order.getId()).ifPresent(payment -> {
+            dto.setPaymentStatus(payment.getStatus());
+            dto.setPaymentMethod(payment.getMethod());
+        });
+
+        dto.setCustomerEmail(order.getCustomerEmail());
+        dto.setCustomerPhone(order.getCustomerPhone());
+        dto.setPreferredLanguage(order.getPreferredLanguage());
+        dto.setBillingCustomerType(order.getBillingCustomerType());
+        dto.setCurrency(order.getCurrency());
+        dto.setSetupCostChf(order.getSetupCostChf());
+        dto.setShippingCostChf(order.getShippingCostChf());
+        dto.setDiscountChf(order.getDiscountChf());
+        dto.setSubtotalChf(order.getSubtotalChf());
+        dto.setIsCadOrder(order.getIsCadOrder());
+        dto.setSourceRequestId(order.getSourceRequestId());
+        dto.setCadHours(order.getCadHours());
+        dto.setCadHourlyRateChf(order.getCadHourlyRateChf());
+        dto.setCadTotalChf(order.getCadTotalChf());
+        dto.setTotalChf(order.getTotalChf());
+        dto.setCreatedAt(order.getCreatedAt());
+        dto.setShippingSameAsBilling(order.getShippingSameAsBilling());
+        QuoteSession sourceSession = order.getSourceQuoteSession();
+        if (sourceSession != null) {
+            dto.setPrintMaterialCode(sourceSession.getMaterialCode());
+            dto.setPrintNozzleDiameterMm(sourceSession.getNozzleDiameterMm());
+            dto.setPrintLayerHeightMm(sourceSession.getLayerHeightMm());
+            dto.setPrintInfillPattern(sourceSession.getInfillPattern());
+            dto.setPrintInfillPercent(sourceSession.getInfillPercent());
+            dto.setPrintSupportsEnabled(sourceSession.getSupportsEnabled());
+        }
+
+        AddressDto billing = new AddressDto();
+        billing.setFirstName(order.getBillingFirstName());
+        billing.setLastName(order.getBillingLastName());
+        billing.setCompanyName(order.getBillingCompanyName());
+        billing.setContactPerson(order.getBillingContactPerson());
+        billing.setAddressLine1(order.getBillingAddressLine1());
+        billing.setAddressLine2(order.getBillingAddressLine2());
+        billing.setZip(order.getBillingZip());
+        billing.setCity(order.getBillingCity());
+        billing.setCountryCode(order.getBillingCountryCode());
+        dto.setBillingAddress(billing);
+
+        if (!Boolean.TRUE.equals(order.getShippingSameAsBilling())) {
+            AddressDto shipping = new AddressDto();
+            shipping.setFirstName(order.getShippingFirstName());
+            shipping.setLastName(order.getShippingLastName());
+            shipping.setCompanyName(order.getShippingCompanyName());
+            shipping.setContactPerson(order.getShippingContactPerson());
+            shipping.setAddressLine1(order.getShippingAddressLine1());
+            shipping.setAddressLine2(order.getShippingAddressLine2());
+            shipping.setZip(order.getShippingZip());
+            shipping.setCity(order.getShippingCity());
+            shipping.setCountryCode(order.getShippingCountryCode());
+            dto.setShippingAddress(shipping);
+        }
+
+        List<OrderItemDto> itemDtos = items.stream().map(item -> {
+            OrderItemDto itemDto = new OrderItemDto();
+            itemDto.setId(item.getId());
+            itemDto.setOriginalFilename(item.getOriginalFilename());
+            itemDto.setMaterialCode(item.getMaterialCode());
+            itemDto.setColorCode(item.getColorCode());
+            if (item.getFilamentVariant() != null) {
+                itemDto.setFilamentVariantId(item.getFilamentVariant().getId());
+                itemDto.setFilamentVariantDisplayName(item.getFilamentVariant().getVariantDisplayName());
+                itemDto.setFilamentColorName(item.getFilamentVariant().getColorName());
+                itemDto.setFilamentColorHex(item.getFilamentVariant().getColorHex());
+            }
+            itemDto.setQuality(item.getQuality());
+            itemDto.setNozzleDiameterMm(item.getNozzleDiameterMm());
+            itemDto.setLayerHeightMm(item.getLayerHeightMm());
+            itemDto.setInfillPercent(item.getInfillPercent());
+            itemDto.setInfillPattern(item.getInfillPattern());
+            itemDto.setSupportsEnabled(item.getSupportsEnabled());
+            itemDto.setQuantity(item.getQuantity());
+            itemDto.setPrintTimeSeconds(item.getPrintTimeSeconds());
+            itemDto.setMaterialGrams(item.getMaterialGrams());
+            itemDto.setUnitPriceChf(item.getUnitPriceChf());
+            itemDto.setLineTotalChf(item.getLineTotalChf());
+            return itemDto;
+        }).toList();
+        dto.setItems(itemDtos);
+
+        return dto;
+    }
+
+    private String getDisplayOrderNumber(Order order) {
+        String orderNumber = order.getOrderNumber();
+        if (orderNumber != null && !orderNumber.isBlank()) {
+            return orderNumber;
+        }
+        return order.getId() != null ? order.getId().toString() : "unknown";
+    }
+
+    private ResponseEntity<byte[]> generateDocument(Order order, boolean isConfirmation) {
+        String displayOrderNumber = getDisplayOrderNumber(order);
+        if (isConfirmation) {
+            Path relativePath = buildConfirmationPdfRelativePath(order.getId(), displayOrderNumber);
+            try {
+                byte[] existingPdf = storageService.loadAsResource(relativePath).getInputStream().readAllBytes();
+                return ResponseEntity.ok()
+                        .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"confirmation-" + displayOrderNumber + ".pdf\"")
+                        .contentType(MediaType.APPLICATION_PDF)
+                        .body(existingPdf);
+            } catch (Exception ignored) {
+                // fallback to generated confirmation document
+            }
+        }
+
+        List<OrderItem> items = orderItemRepo.findByOrder_Id(order.getId());
+        Payment payment = paymentRepo.findByOrder_Id(order.getId()).orElse(null);
+        byte[] pdf = invoiceService.generateDocumentPdf(order, items, isConfirmation, qrBillService, payment);
+
+        String prefix = isConfirmation ? "confirmation-" : "invoice-";
+        return ResponseEntity.ok()
+                .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"" + prefix + displayOrderNumber + ".pdf\"")
+                .contentType(MediaType.APPLICATION_PDF)
+                .body(pdf);
+    }
+
+    private Path resolveOrderItemRelativePath(String storedRelativePath, UUID orderId, UUID orderItemId) {
+        try {
+            Path candidate = Path.of(storedRelativePath).normalize();
+            if (candidate.isAbsolute()) {
+                return null;
+            }
+            Path expectedPrefix = Path.of("orders", orderId.toString(), "3d-files", orderItemId.toString());
+            if (!candidate.startsWith(expectedPrefix)) {
+                return null;
+            }
+            return candidate;
+        } catch (InvalidPathException e) {
+            return null;
+        }
+    }
+
+    private Resource loadOrderItemResourceWithRecovery(OrderItem item, Path safeRelativePath) {
+        try {
+            return storageService.loadAsResource(safeRelativePath);
+        } catch (Exception primaryFailure) {
+            Path sourceQuotePath = resolveFallbackQuoteItemPath(item);
+            if (sourceQuotePath == null) {
+                throw new ResponseStatusException(NOT_FOUND, "File not available");
+            }
+            try {
+                storageService.store(sourceQuotePath, safeRelativePath);
+                return storageService.loadAsResource(safeRelativePath);
+            } catch (Exception copyFailure) {
+                try {
+                    Resource quoteResource = new UrlResource(sourceQuotePath.toUri());
+                    if (quoteResource.exists() || quoteResource.isReadable()) {
+                        return quoteResource;
+                    }
+                } catch (Exception ignored) {
+                    // fall through to 404
+                }
+                throw new ResponseStatusException(NOT_FOUND, "File not available");
+            }
+        }
+    }
+
+    private Path resolveFallbackQuoteItemPath(OrderItem orderItem) {
+        Order order = orderItem.getOrder();
+        QuoteSession sourceSession = order != null ? order.getSourceQuoteSession() : null;
+        UUID sourceSessionId = sourceSession != null ? sourceSession.getId() : null;
+        if (sourceSessionId == null) {
+            return null;
+        }
+
+        String targetFilename = normalizeFilename(orderItem.getOriginalFilename());
+        if (targetFilename == null) {
+            return null;
+        }
+
+        return quoteLineItemRepo.findByQuoteSessionId(sourceSessionId).stream()
+                .filter(quoteItem -> targetFilename.equals(normalizeFilename(quoteItem.getOriginalFilename())))
+                .sorted(Comparator.comparingInt((QuoteLineItem quoteItem) -> scoreQuoteMatch(orderItem, quoteItem)).reversed())
+                .map(quoteItem -> resolveStoredQuotePath(quoteItem.getStoredPath(), sourceSessionId))
+                .filter(path -> path != null && Files.exists(path))
+                .findFirst()
+                .orElse(null);
+    }
+
+    private int scoreQuoteMatch(OrderItem orderItem, QuoteLineItem quoteItem) {
+        int score = 0;
+        if (orderItem.getQuantity() != null && orderItem.getQuantity().equals(quoteItem.getQuantity())) {
+            score += 4;
+        }
+        if (orderItem.getPrintTimeSeconds() != null && orderItem.getPrintTimeSeconds().equals(quoteItem.getPrintTimeSeconds())) {
+            score += 3;
+        }
+        if (orderItem.getMaterialCode() != null
+                && quoteItem.getMaterialCode() != null
+                && orderItem.getMaterialCode().equalsIgnoreCase(quoteItem.getMaterialCode())) {
+            score += 3;
+        }
+        if (orderItem.getMaterialGrams() != null
+                && quoteItem.getMaterialGrams() != null
+                && orderItem.getMaterialGrams().compareTo(quoteItem.getMaterialGrams()) == 0) {
+            score += 2;
+        }
+        return score;
+    }
+
+    private String normalizeFilename(String filename) {
+        if (filename == null || filename.isBlank()) {
+            return null;
+        }
+        return filename.trim();
+    }
+
+    private Path resolveStoredQuotePath(String storedPath, UUID expectedSessionId) {
+        if (storedPath == null || storedPath.isBlank()) {
+            return null;
+        }
+        try {
+            Path raw = Path.of(storedPath).normalize();
+            Path resolved = raw.isAbsolute() ? raw : QUOTE_STORAGE_ROOT.resolve(raw).normalize();
+            Path expectedSessionRoot = QUOTE_STORAGE_ROOT.resolve(expectedSessionId.toString()).normalize();
+            if (!resolved.startsWith(expectedSessionRoot)) {
+                return null;
+            }
+            return resolved;
+        } catch (InvalidPathException e) {
+            return null;
+        }
+    }
+
+    private Path buildConfirmationPdfRelativePath(UUID orderId, String orderNumber) {
+        return Path.of("orders", orderId.toString(), "documents", "confirmation-" + orderNumber + ".pdf");
+    }
+}

backend/src/main/java/com/printcalculator/service/order/OrderControllerService.java

@@ -0,0 +1,358 @@
+package com.printcalculator.service.order;
+
+import com.printcalculator.dto.AddressDto;
+import com.printcalculator.dto.CreateOrderRequest;
+import com.printcalculator.dto.OrderDto;
+import com.printcalculator.dto.OrderItemDto;
+import com.printcalculator.entity.Order;
+import com.printcalculator.entity.OrderItem;
+import com.printcalculator.entity.Payment;
+import com.printcalculator.repository.OrderItemRepository;
+import com.printcalculator.repository.OrderRepository;
+import com.printcalculator.repository.PaymentRepository;
+import com.printcalculator.service.OrderService;
+import com.printcalculator.service.payment.InvoicePdfRenderingService;
+import com.printcalculator.service.payment.PaymentService;
+import com.printcalculator.service.payment.QrBillService;
+import com.printcalculator.service.payment.TwintPaymentService;
+import com.printcalculator.service.storage.StorageService;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.StringUtils;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.io.IOException;
+import java.net.URI;
+import java.nio.file.InvalidPathException;
+import java.nio.file.Path;
+import java.util.Base64;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+import java.util.UUID;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+
+@Service
+@Transactional(readOnly = true)
+public class OrderControllerService {
+    private static final Pattern SAFE_EXTENSION_PATTERN = Pattern.compile("^[a-z0-9]{1,10}$");
+    private static final Set<String> PERSONAL_DATA_REDACTED_STATUSES = Set.of(
+            "IN_PRODUCTION",
+            "SHIPPED",
+            "COMPLETED"
+    );
+
+    private final OrderService orderService;
+    private final OrderRepository orderRepo;
+    private final OrderItemRepository orderItemRepo;
+    private final StorageService storageService;
+    private final InvoicePdfRenderingService invoiceService;
+    private final QrBillService qrBillService;
+    private final TwintPaymentService twintPaymentService;
+    private final PaymentService paymentService;
+    private final PaymentRepository paymentRepo;
+
+    public OrderControllerService(OrderService orderService,
+                                  OrderRepository orderRepo,
+                                  OrderItemRepository orderItemRepo,
+                                  StorageService storageService,
+                                  InvoicePdfRenderingService invoiceService,
+                                  QrBillService qrBillService,
+                                  TwintPaymentService twintPaymentService,
+                                  PaymentService paymentService,
+                                  PaymentRepository paymentRepo) {
+        this.orderService = orderService;
+        this.orderRepo = orderRepo;
+        this.orderItemRepo = orderItemRepo;
+        this.storageService = storageService;
+        this.invoiceService = invoiceService;
+        this.qrBillService = qrBillService;
+        this.twintPaymentService = twintPaymentService;
+        this.paymentService = paymentService;
+        this.paymentRepo = paymentRepo;
+    }
+
+    @Transactional
+    public OrderDto createOrderFromQuote(UUID quoteSessionId, CreateOrderRequest request) {
+        Order order = orderService.createOrderFromQuote(quoteSessionId, request);
+        List<OrderItem> items = orderItemRepo.findByOrder_Id(order.getId());
+        return convertToDto(order, items);
+    }
+
+    @Transactional
+    public boolean uploadOrderItemFile(UUID orderId, UUID orderItemId, MultipartFile file) throws IOException {
+        OrderItem item = orderItemRepo.findById(orderItemId)
+                .orElseThrow(() -> new RuntimeException("OrderItem not found"));
+
+        if (!item.getOrder().getId().equals(orderId)) {
+            return false;
+        }
+
+        String relativePath = item.getStoredRelativePath();
+        Path destinationRelativePath;
+        if (relativePath == null || relativePath.equals("PENDING")) {
+            String ext = getExtension(file.getOriginalFilename());
+            String storedFilename = UUID.randomUUID() + "." + ext;
+            destinationRelativePath = Path.of("orders", orderId.toString(), "3d-files", orderItemId.toString(), storedFilename);
+            item.setStoredRelativePath(destinationRelativePath.toString());
+            item.setStoredFilename(storedFilename);
+        } else {
+            destinationRelativePath = resolveOrderItemRelativePath(relativePath, orderId, orderItemId);
+            if (destinationRelativePath == null) {
+                return false;
+            }
+        }
+
+        storageService.store(file, destinationRelativePath);
+        item.setFileSizeBytes(file.getSize());
+        item.setMimeType(file.getContentType());
+        orderItemRepo.save(item);
+
+        return true;
+    }
+
+    public Optional<OrderDto> getOrder(UUID orderId) {
+        return orderRepo.findById(orderId)
+                .map(order -> {
+                    List<OrderItem> items = orderItemRepo.findByOrder_Id(order.getId());
+                    return convertToDto(order, items);
+                });
+    }
+
+    @Transactional
+    public Optional<OrderDto> reportPayment(UUID orderId, String method) {
+        paymentService.reportPayment(orderId, method);
+        return getOrder(orderId);
+    }
+
+    public ResponseEntity<byte[]> getConfirmation(UUID orderId) {
+        return generateDocument(orderId, true);
+    }
+
+    public ResponseEntity<Map<String, String>> getTwintPayment(UUID orderId) {
+        Order order = orderRepo.findById(orderId).orElse(null);
+        if (order == null) {
+            return ResponseEntity.notFound().build();
+        }
+
+        byte[] qrPng = twintPaymentService.generateQrPng(order, 360);
+        String qrDataUri = "data:image/png;base64," + Base64.getEncoder().encodeToString(qrPng);
+
+        Map<String, String> data = new HashMap<>();
+        data.put("paymentUrl", twintPaymentService.getTwintPaymentUrl(order));
+        data.put("openUrl", "/api/orders/" + orderId + "/twint/open");
+        data.put("qrImageUrl", "/api/orders/" + orderId + "/twint/qr");
+        data.put("qrImageDataUri", qrDataUri);
+        return ResponseEntity.ok(data);
+    }
+
+    public ResponseEntity<Void> openTwintPayment(UUID orderId) {
+        Order order = orderRepo.findById(orderId).orElse(null);
+        if (order == null) {
+            return ResponseEntity.notFound().build();
+        }
+
+        return ResponseEntity.status(302)
+                .location(URI.create(twintPaymentService.getTwintPaymentUrl(order)))
+                .build();
+    }
+
+    public ResponseEntity<byte[]> getTwintQr(UUID orderId, int size) {
+        Order order = orderRepo.findById(orderId).orElse(null);
+        if (order == null) {
+            return ResponseEntity.notFound().build();
+        }
+
+        int normalizedSize = Math.max(200, Math.min(size, 600));
+        byte[] png = twintPaymentService.generateQrPng(order, normalizedSize);
+
+        return ResponseEntity.ok()
+                .contentType(MediaType.IMAGE_PNG)
+                .body(png);
+    }
+
+    private ResponseEntity<byte[]> generateDocument(UUID orderId, boolean isConfirmation) {
+        Order order = orderRepo.findById(orderId)
+                .orElseThrow(() -> new RuntimeException("Order not found"));
+
+        if (isConfirmation) {
+            Path relativePath = buildConfirmationPdfRelativePath(order);
+            try {
+                byte[] existingPdf = storageService.loadAsResource(relativePath).getInputStream().readAllBytes();
+                return ResponseEntity.ok()
+                        .header("Content-Disposition", "attachment; filename=\"confirmation-" + getDisplayOrderNumber(order) + ".pdf\"")
+                        .contentType(MediaType.APPLICATION_PDF)
+                        .body(existingPdf);
+            } catch (Exception ignored) {
+                // Fallback to on-the-fly generation if the stored file is missing or unreadable.
+            }
+        }
+
+        List<OrderItem> items = orderItemRepo.findByOrder_Id(orderId);
+        Payment payment = paymentRepo.findByOrder_Id(orderId).orElse(null);
+
+        byte[] pdf = invoiceService.generateDocumentPdf(order, items, isConfirmation, qrBillService, payment);
+        String typePrefix = isConfirmation ? "confirmation-" : "invoice-";
+        String truncatedUuid = order.getId().toString().substring(0, 8);
+        return ResponseEntity.ok()
+                .header("Content-Disposition", "attachment; filename=\"" + typePrefix + truncatedUuid + ".pdf\"")
+                .contentType(MediaType.APPLICATION_PDF)
+                .body(pdf);
+    }
+
+    private Path buildConfirmationPdfRelativePath(Order order) {
+        return Path.of(
+                "orders",
+                order.getId().toString(),
+                "documents",
+                "confirmation-" + getDisplayOrderNumber(order) + ".pdf"
+        );
+    }
+
+    private String getExtension(String filename) {
+        if (filename == null) {
+            return "stl";
+        }
+        String cleaned = StringUtils.cleanPath(filename);
+        if (cleaned.contains("..")) {
+            return "stl";
+        }
+        int i = cleaned.lastIndexOf('.');
+        if (i > 0 && i < cleaned.length() - 1) {
+            String ext = cleaned.substring(i + 1).toLowerCase(Locale.ROOT);
+            if (SAFE_EXTENSION_PATTERN.matcher(ext).matches()) {
+                return ext;
+            }
+        }
+        return "stl";
+    }
+
+    private Path resolveOrderItemRelativePath(String storedRelativePath, UUID orderId, UUID orderItemId) {
+        try {
+            Path candidate = Path.of(storedRelativePath).normalize();
+            if (candidate.isAbsolute()) {
+                return null;
+            }
+
+            Path expectedPrefix = Path.of("orders", orderId.toString(), "3d-files", orderItemId.toString());
+            if (!candidate.startsWith(expectedPrefix)) {
+                return null;
+            }
+
+            return candidate;
+        } catch (InvalidPathException e) {
+            return null;
+        }
+    }
+
+    private OrderDto convertToDto(Order order, List<OrderItem> items) {
+        OrderDto dto = new OrderDto();
+        dto.setId(order.getId());
+        dto.setOrderNumber(getDisplayOrderNumber(order));
+        dto.setStatus(order.getStatus());
+
+        paymentRepo.findByOrder_Id(order.getId()).ifPresent(payment -> {
+            dto.setPaymentStatus(payment.getStatus());
+            dto.setPaymentMethod(payment.getMethod());
+        });
+
+        boolean redactPersonalData = shouldRedactPersonalData(order.getStatus());
+        if (!redactPersonalData) {
+            dto.setCustomerEmail(order.getCustomerEmail());
+            dto.setCustomerPhone(order.getCustomerPhone());
+            dto.setBillingCustomerType(order.getBillingCustomerType());
+        }
+        dto.setPreferredLanguage(order.getPreferredLanguage());
+        dto.setCurrency(order.getCurrency());
+        dto.setSetupCostChf(order.getSetupCostChf());
+        dto.setShippingCostChf(order.getShippingCostChf());
+        dto.setDiscountChf(order.getDiscountChf());
+        dto.setSubtotalChf(order.getSubtotalChf());
+        dto.setIsCadOrder(order.getIsCadOrder());
+        dto.setSourceRequestId(order.getSourceRequestId());
+        dto.setCadHours(order.getCadHours());
+        dto.setCadHourlyRateChf(order.getCadHourlyRateChf());
+        dto.setCadTotalChf(order.getCadTotalChf());
+        dto.setTotalChf(order.getTotalChf());
+        dto.setCreatedAt(order.getCreatedAt());
+        dto.setShippingSameAsBilling(order.getShippingSameAsBilling());
+
+        if (!redactPersonalData) {
+            AddressDto billing = new AddressDto();
+            billing.setFirstName(order.getBillingFirstName());
+            billing.setLastName(order.getBillingLastName());
+            billing.setCompanyName(order.getBillingCompanyName());
+            billing.setContactPerson(order.getBillingContactPerson());
+            billing.setAddressLine1(order.getBillingAddressLine1());
+            billing.setAddressLine2(order.getBillingAddressLine2());
+            billing.setZip(order.getBillingZip());
+            billing.setCity(order.getBillingCity());
+            billing.setCountryCode(order.getBillingCountryCode());
+            dto.setBillingAddress(billing);
+
+            if (!Boolean.TRUE.equals(order.getShippingSameAsBilling())) {
+                AddressDto shipping = new AddressDto();
+                shipping.setFirstName(order.getShippingFirstName());
+                shipping.setLastName(order.getShippingLastName());
+                shipping.setCompanyName(order.getShippingCompanyName());
+                shipping.setContactPerson(order.getShippingContactPerson());
+                shipping.setAddressLine1(order.getShippingAddressLine1());
+                shipping.setAddressLine2(order.getShippingAddressLine2());
+                shipping.setZip(order.getShippingZip());
+                shipping.setCity(order.getShippingCity());
+                shipping.setCountryCode(order.getShippingCountryCode());
+                dto.setShippingAddress(shipping);
+            }
+        }
+
+        List<OrderItemDto> itemDtos = items.stream().map(item -> {
+            OrderItemDto itemDto = new OrderItemDto();
+            itemDto.setId(item.getId());
+            itemDto.setOriginalFilename(item.getOriginalFilename());
+            itemDto.setMaterialCode(item.getMaterialCode());
+            itemDto.setColorCode(item.getColorCode());
+            if (item.getFilamentVariant() != null) {
+                itemDto.setFilamentVariantId(item.getFilamentVariant().getId());
+                itemDto.setFilamentVariantDisplayName(item.getFilamentVariant().getVariantDisplayName());
+                itemDto.setFilamentColorName(item.getFilamentVariant().getColorName());
+                itemDto.setFilamentColorHex(item.getFilamentVariant().getColorHex());
+            }
+            itemDto.setQuality(item.getQuality());
+            itemDto.setNozzleDiameterMm(item.getNozzleDiameterMm());
+            itemDto.setLayerHeightMm(item.getLayerHeightMm());
+            itemDto.setInfillPercent(item.getInfillPercent());
+            itemDto.setInfillPattern(item.getInfillPattern());
+            itemDto.setSupportsEnabled(item.getSupportsEnabled());
+            itemDto.setQuantity(item.getQuantity());
+            itemDto.setPrintTimeSeconds(item.getPrintTimeSeconds());
+            itemDto.setMaterialGrams(item.getMaterialGrams());
+            itemDto.setUnitPriceChf(item.getUnitPriceChf());
+            itemDto.setLineTotalChf(item.getLineTotalChf());
+            return itemDto;
+        }).collect(Collectors.toList());
+        dto.setItems(itemDtos);
+
+        return dto;
+    }
+
+    private boolean shouldRedactPersonalData(String status) {
+        if (status == null || status.isBlank()) {
+            return false;
+        }
+        return PERSONAL_DATA_REDACTED_STATUSES.contains(status.trim().toUpperCase(Locale.ROOT));
+    }
+
+    private String getDisplayOrderNumber(Order order) {
+        String orderNumber = order.getOrderNumber();
+        if (orderNumber != null && !orderNumber.isBlank()) {
+            return orderNumber;
+        }
+        return order.getId() != null ? order.getId().toString() : "unknown";
+    }
+}

backend/src/main/java/com/printcalculator/service/quote/QuoteSessionItemService.java

@@ -11,6 +11,7 @@ import com.printcalculator.model.QuoteResult;
 import com.printcalculator.repository.QuoteLineItemRepository;
 import com.printcalculator.repository.QuoteSessionRepository;
 import com.printcalculator.service.OrcaProfileResolver;
+import com.printcalculator.service.ProfileManager;
 import com.printcalculator.service.QuoteCalculator;
 import com.printcalculator.service.SlicerService;
 import com.printcalculator.service.storage.ClamAVService;
@@ -41,6 +42,7 @@ public class QuoteSessionItemService {
     private final ClamAVService clamAVService;
     private final QuoteStorageService quoteStorageService;
     private final QuoteSessionSettingsService settingsService;
+    private final ProfileManager profileManager;
 
     public QuoteSessionItemService(QuoteLineItemRepository lineItemRepo,
                                    QuoteSessionRepository sessionRepo,
@@ -49,7 +51,8 @@ public class QuoteSessionItemService {
                                    OrcaProfileResolver orcaProfileResolver,
                                    ClamAVService clamAVService,
                                    QuoteStorageService quoteStorageService,
-                                   QuoteSessionSettingsService settingsService) {
+                                   QuoteSessionSettingsService settingsService,
+                                   ProfileManager profileManager) {
         this.lineItemRepo = lineItemRepo;
         this.sessionRepo = sessionRepo;
         this.slicerService = slicerService;
@@ -58,6 +61,7 @@ public class QuoteSessionItemService {
         this.clamAVService = clamAVService;
         this.quoteStorageService = quoteStorageService;
         this.settingsService = settingsService;
+        this.profileManager = profileManager;
     }
 
     public QuoteLineItem addItemToSession(QuoteSession session, MultipartFile file, PrintSettingsDto settings) throws IOException {
@@ -109,7 +113,12 @@ public class QuoteSessionItemService {
             }
 
             OrcaProfileResolver.ResolvedProfiles profiles = orcaProfileResolver.resolve(machine, nozzleDiameter, selectedVariant);
-            String processProfile = resolveProcessProfile(settings);
+            String processProfile = resolveProcessProfile(
+                    settings,
+                    profiles.machineProfileName(),
+                    nozzleDiameter,
+                    layerHeight
+            );
 
             Map<String, String> processOverrides = new HashMap<>();
             processOverrides.put("layer_height", layerHeight.stripTrailingZeros().toPlainString());
@@ -180,7 +189,29 @@ public class QuoteSessionItemService {
         }
     }
 
-    private String resolveProcessProfile(PrintSettingsDto settings) {
+    private String resolveProcessProfile(PrintSettingsDto settings,
+                                         String machineProfileName,
+                                         BigDecimal nozzleDiameter,
+                                         BigDecimal layerHeight) {
+        if (machineProfileName == null || machineProfileName.isBlank() || layerHeight == null) {
+            return resolveLegacyProcessProfile(settings);
+        }
+
+        String qualityHint = settingsService.resolveQuality(settings, layerHeight);
+        return profileManager
+                .findCompatibleProcessProfileName(machineProfileName, layerHeight, qualityHint)
+                .orElseThrow(() -> new ResponseStatusException(
+                        HttpStatus.BAD_REQUEST,
+                        "Layer height " + layerHeight.stripTrailingZeros().toPlainString()
+                                + " is not available for nozzle "
+                                + (nozzleDiameter != null
+                                ? nozzleDiameter.stripTrailingZeros().toPlainString()
+                                : "-")
+                                + " on printer profile " + machineProfileName
+                ));
+    }
+
+    private String resolveLegacyProcessProfile(PrintSettingsDto settings) {
         if (settings.getLayerHeight() == null) {
             return "standard";
         }
@@ -208,7 +239,7 @@ public class QuoteSessionItemService {
         item.setQuoteSession(session);
         item.setOriginalFilename(originalFilename);
         item.setStoredPath(quoteStorageService.toStoredPath(persistentPath));
-        item.setQuantity(1);
+        item.setQuantity(normalizeQuantity(settings.getQuantity()));
         item.setColorCode(selectedVariant.getColorName());
         item.setFilamentVariant(selectedVariant);
         item.setMaterialCode(selectedVariant.getFilamentMaterialType() != null
@@ -248,4 +279,11 @@ public class QuoteSessionItemService {
         item.setUpdatedAt(OffsetDateTime.now());
         return item;
     }
+
+    private int normalizeQuantity(Integer quantity) {
+        if (quantity == null || quantity < 1) {
+            return 1;
+        }
+        return quantity;
+    }
 }

backend/src/main/java/com/printcalculator/service/quote/QuoteSessionResponseAssembler.java

@@ -34,6 +34,9 @@ public class QuoteSessionResponseAssembler {
         response.put("printItemsTotalChf", totals.printItemsTotalChf());
         response.put("cadTotalChf", totals.cadTotalChf());
         response.put("itemsTotalChf", totals.itemsTotalChf());
+        response.put("baseSetupCostChf", totals.baseSetupCostChf());
+        response.put("nozzleChangeCostChf", totals.nozzleChangeCostChf());
+        response.put("setupCostChf", totals.setupCostChf());
         response.put("shippingCostChf", totals.shippingCostChf());
         response.put("globalMachineCostChf", totals.globalMachineCostChf());
         response.put("grandTotalChf", totals.grandTotalChf());

backend/src/main/java/com/printcalculator/service/request/ContactRequestLocalizationService.java

@@ -0,0 +1,216 @@
+package com.printcalculator.service.request;
+
+import com.printcalculator.entity.CustomQuoteRequest;
+import org.springframework.stereotype.Service;
+
+import java.util.Locale;
+import java.util.Map;
+import java.util.UUID;
+
+@Service
+public class ContactRequestLocalizationService {
+
+    public String applyCustomerContactRequestTexts(Map<String, Object> templateData, String language, UUID requestId) {
+        return switch (language) {
+            case "en" -> {
+                templateData.put("emailTitle", "Contact request received");
+                templateData.put("headlineText", "We received your contact request");
+                templateData.put("greetingText", "Hi " + templateData.get("recipientName") + ",");
+                templateData.put("introText", "Thank you for contacting us. Our team will reply as soon as possible.");
+                templateData.put("requestIdHintText", "Please keep this request ID for future order references:");
+                templateData.put("detailsTitleText", "Request details");
+                templateData.put("labelRequestId", "Request ID");
+                templateData.put("labelDate", "Date");
+                templateData.put("labelRequestType", "Request type");
+                templateData.put("labelCustomerType", "Customer type");
+                templateData.put("labelName", "Name");
+                templateData.put("labelCompany", "Company");
+                templateData.put("labelContactPerson", "Contact person");
+                templateData.put("labelEmail", "Email");
+                templateData.put("labelPhone", "Phone");
+                templateData.put("labelMessage", "Message");
+                templateData.put("labelAttachments", "Attachments");
+                templateData.put("supportText", "If you need help, reply to this email.");
+                templateData.put("footerText", "Automated request-receipt confirmation from 3D-Fab.");
+                yield "We received your contact request #" + requestId + " - 3D-Fab";
+            }
+            case "de" -> {
+                templateData.put("emailTitle", "Kontaktanfrage erhalten");
+                templateData.put("headlineText", "Wir haben Ihre Kontaktanfrage erhalten");
+                templateData.put("greetingText", "Hallo " + templateData.get("recipientName") + ",");
+                templateData.put("introText", "Vielen Dank fuer Ihre Anfrage. Unser Team antwortet Ihnen so schnell wie moeglich.");
+                templateData.put("requestIdHintText", "Bitte speichern Sie diese Anfrage-ID fuer zukuenftige Bestellreferenzen:");
+                templateData.put("detailsTitleText", "Anfragedetails");
+                templateData.put("labelRequestId", "Anfrage-ID");
+                templateData.put("labelDate", "Datum");
+                templateData.put("labelRequestType", "Anfragetyp");
+                templateData.put("labelCustomerType", "Kundentyp");
+                templateData.put("labelName", "Name");
+                templateData.put("labelCompany", "Firma");
+                templateData.put("labelContactPerson", "Kontaktperson");
+                templateData.put("labelEmail", "E-Mail");
+                templateData.put("labelPhone", "Telefon");
+                templateData.put("labelMessage", "Nachricht");
+                templateData.put("labelAttachments", "Anhaenge");
+                templateData.put("supportText", "Wenn Sie Hilfe brauchen, antworten Sie auf diese E-Mail.");
+                templateData.put("footerText", "Automatische Bestaetigung des Anfrageeingangs von 3D-Fab.");
+                yield "Wir haben Ihre Kontaktanfrage erhalten #" + requestId + " - 3D-Fab";
+            }
+            case "fr" -> {
+                templateData.put("emailTitle", "Demande de contact recue");
+                templateData.put("headlineText", "Nous avons recu votre demande de contact");
+                templateData.put("greetingText", "Bonjour " + templateData.get("recipientName") + ",");
+                templateData.put("introText", "Merci pour votre message. Notre equipe vous repondra des que possible.");
+                templateData.put("requestIdHintText", "Veuillez conserver cet ID de demande pour vos futures references de commande :");
+                templateData.put("detailsTitleText", "Details de la demande");
+                templateData.put("labelRequestId", "ID de demande");
+                templateData.put("labelDate", "Date");
+                templateData.put("labelRequestType", "Type de demande");
+                templateData.put("labelCustomerType", "Type de client");
+                templateData.put("labelName", "Nom");
+                templateData.put("labelCompany", "Entreprise");
+                templateData.put("labelContactPerson", "Contact");
+                templateData.put("labelEmail", "Email");
+                templateData.put("labelPhone", "Telephone");
+                templateData.put("labelMessage", "Message");
+                templateData.put("labelAttachments", "Pieces jointes");
+                templateData.put("supportText", "Si vous avez besoin d'aide, repondez a cet email.");
+                templateData.put("footerText", "Confirmation automatique de reception de demande par 3D-Fab.");
+                yield "Nous avons recu votre demande de contact #" + requestId + " - 3D-Fab";
+            }
+            default -> {
+                templateData.put("emailTitle", "Richiesta di contatto ricevuta");
+                templateData.put("headlineText", "Abbiamo ricevuto la tua richiesta di contatto");
+                templateData.put("greetingText", "Ciao " + templateData.get("recipientName") + ",");
+                templateData.put("introText", "Grazie per averci contattato. Il nostro team ti rispondera' il prima possibile.");
+                templateData.put("requestIdHintText", "Conserva questo ID richiesta per i futuri riferimenti d'ordine:");
+                templateData.put("detailsTitleText", "Dettagli richiesta");
+                templateData.put("labelRequestId", "ID richiesta");
+                templateData.put("labelDate", "Data");
+                templateData.put("labelRequestType", "Tipo richiesta");
+                templateData.put("labelCustomerType", "Tipo cliente");
+                templateData.put("labelName", "Nome");
+                templateData.put("labelCompany", "Azienda");
+                templateData.put("labelContactPerson", "Contatto");
+                templateData.put("labelEmail", "Email");
+                templateData.put("labelPhone", "Telefono");
+                templateData.put("labelMessage", "Messaggio");
+                templateData.put("labelAttachments", "Allegati");
+                templateData.put("supportText", "Se hai bisogno, rispondi direttamente a questa email.");
+                templateData.put("footerText", "Conferma automatica di ricezione richiesta da 3D-Fab.");
+                yield "Abbiamo ricevuto la tua richiesta di contatto #" + requestId + " - 3D-Fab";
+            }
+        };
+    }
+
+    public String localizeRequestType(String requestType, String language) {
+        if (requestType == null || requestType.isBlank()) {
+            return "-";
+        }
+
+        String normalized = requestType.trim().toLowerCase(Locale.ROOT);
+        return switch (language) {
+            case "en" -> switch (normalized) {
+                case "custom", "print_service" -> "Custom part request";
+                case "series" -> "Series production request";
+                case "consult", "design_service" -> "Consultation request";
+                case "question" -> "General question";
+                default -> requestType;
+            };
+            case "de" -> switch (normalized) {
+                case "custom", "print_service" -> "Anfrage fuer Einzelteil";
+                case "series" -> "Anfrage fuer Serienproduktion";
+                case "consult", "design_service" -> "Beratungsanfrage";
+                case "question" -> "Allgemeine Frage";
+                default -> requestType;
+            };
+            case "fr" -> switch (normalized) {
+                case "custom", "print_service" -> "Demande de piece personnalisee";
+                case "series" -> "Demande de production en serie";
+                case "consult", "design_service" -> "Demande de conseil";
+                case "question" -> "Question generale";
+                default -> requestType;
+            };
+            default -> switch (normalized) {
+                case "custom", "print_service" -> "Richiesta pezzo personalizzato";
+                case "series" -> "Richiesta produzione in serie";
+                case "consult", "design_service" -> "Richiesta consulenza";
+                case "question" -> "Domanda generale";
+                default -> requestType;
+            };
+        };
+    }
+
+    public String localizeCustomerType(String customerType, String language) {
+        if (customerType == null || customerType.isBlank()) {
+            return "-";
+        }
+        String normalized = customerType.trim().toLowerCase(Locale.ROOT);
+        return switch (language) {
+            case "en" -> switch (normalized) {
+                case "private" -> "Private";
+                case "business" -> "Business";
+                default -> customerType;
+            };
+            case "de" -> switch (normalized) {
+                case "private" -> "Privat";
+                case "business" -> "Unternehmen";
+                default -> customerType;
+            };
+            case "fr" -> switch (normalized) {
+                case "private" -> "Prive";
+                case "business" -> "Entreprise";
+                default -> customerType;
+            };
+            default -> switch (normalized) {
+                case "private" -> "Privato";
+                case "business" -> "Azienda";
+                default -> customerType;
+            };
+        };
+    }
+
+    public Locale localeForLanguage(String language) {
+        return switch (language) {
+            case "en" -> Locale.ENGLISH;
+            case "de" -> Locale.GERMAN;
+            case "fr" -> Locale.FRENCH;
+            default -> Locale.ITALIAN;
+        };
+    }
+
+    public String normalizeLanguage(String language) {
+        if (language == null || language.isBlank()) {
+            return "it";
+        }
+        String normalized = language.toLowerCase(Locale.ROOT).trim();
+        if (normalized.startsWith("en")) {
+            return "en";
+        }
+        if (normalized.startsWith("de")) {
+            return "de";
+        }
+        if (normalized.startsWith("fr")) {
+            return "fr";
+        }
+        return "it";
+    }
+
+    public String resolveRecipientName(CustomQuoteRequest request, String language) {
+        if (request.getName() != null && !request.getName().isBlank()) {
+            return request.getName().trim();
+        }
+        if (request.getContactPerson() != null && !request.getContactPerson().isBlank()) {
+            return request.getContactPerson().trim();
+        }
+        if (request.getCompanyName() != null && !request.getCompanyName().isBlank()) {
+            return request.getCompanyName().trim();
+        }
+        return switch (language) {
+            case "en" -> "customer";
+            case "de" -> "Kunde";
+            case "fr" -> "client";
+            default -> "cliente";
+        };
+    }
+}

backend/src/main/java/com/printcalculator/service/request/CustomQuoteRequestAttachmentService.java

@@ -0,0 +1,155 @@
+package com.printcalculator.service.request;
+
+import com.printcalculator.entity.CustomQuoteRequest;
+import com.printcalculator.entity.CustomQuoteRequestAttachment;
+import com.printcalculator.repository.CustomQuoteRequestAttachmentRepository;
+import com.printcalculator.service.storage.ClamAVService;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.StringUtils;
+import org.springframework.web.multipart.MultipartFile;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.InvalidPathException;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
+import java.time.OffsetDateTime;
+import java.util.List;
+import java.util.Locale;
+import java.util.Set;
+import java.util.UUID;
+import java.util.regex.Pattern;
+
+@Service
+@Transactional(readOnly = true)
+public class CustomQuoteRequestAttachmentService {
+
+    private static final Path STORAGE_ROOT = Paths.get("storage_requests").toAbsolutePath().normalize();
+    private static final Pattern SAFE_EXTENSION_PATTERN = Pattern.compile("^[a-z0-9]{1,10}$");
+    private static final Set<String> FORBIDDEN_COMPRESSED_EXTENSIONS = Set.of(
+            "zip", "rar", "7z", "tar", "gz", "tgz", "bz2", "tbz2", "xz", "txz", "zst"
+    );
+    private static final Set<String> FORBIDDEN_COMPRESSED_MIME_TYPES = Set.of(
+            "application/zip",
+            "application/x-zip-compressed",
+            "application/x-rar-compressed",
+            "application/vnd.rar",
+            "application/x-7z-compressed",
+            "application/gzip",
+            "application/x-gzip",
+            "application/x-tar",
+            "application/x-bzip2",
+            "application/x-xz",
+            "application/zstd",
+            "application/x-zstd"
+    );
+
+    private final CustomQuoteRequestAttachmentRepository attachmentRepo;
+    private final ClamAVService clamAVService;
+
+    public CustomQuoteRequestAttachmentService(CustomQuoteRequestAttachmentRepository attachmentRepo,
+                                               ClamAVService clamAVService) {
+        this.attachmentRepo = attachmentRepo;
+        this.clamAVService = clamAVService;
+    }
+
+    @Transactional
+    public int storeAttachments(CustomQuoteRequest request, List<MultipartFile> files) throws IOException {
+        if (files == null || files.isEmpty()) {
+            return 0;
+        }
+        if (files.size() > 15) {
+            throw new IOException("Too many files. Max 15 allowed.");
+        }
+
+        int attachmentsCount = 0;
+        for (MultipartFile file : files) {
+            if (file.isEmpty()) {
+                continue;
+            }
+            if (isCompressedFile(file)) {
+                throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Compressed files are not allowed.");
+            }
+
+            clamAVService.scan(file.getInputStream());
+
+            CustomQuoteRequestAttachment attachment = new CustomQuoteRequestAttachment();
+            attachment.setRequest(request);
+            attachment.setOriginalFilename(file.getOriginalFilename());
+            attachment.setMimeType(file.getContentType());
+            attachment.setFileSizeBytes(file.getSize());
+            attachment.setCreatedAt(OffsetDateTime.now());
+            attachment.setStoredFilename(UUID.randomUUID() + ".upload");
+            attachment.setStoredRelativePath("PENDING");
+
+            attachment = attachmentRepo.save(attachment);
+
+            Path relativePath = Path.of(
+                    "quote-requests",
+                    request.getId().toString(),
+                    "attachments",
+                    attachment.getId().toString(),
+                    attachment.getStoredFilename()
+            );
+            attachment.setStoredRelativePath(relativePath.toString());
+            attachmentRepo.save(attachment);
+
+            Path absolutePath = resolveWithinStorageRoot(relativePath);
+            Files.createDirectories(absolutePath.getParent());
+            try (InputStream inputStream = file.getInputStream()) {
+                Files.copy(inputStream, absolutePath, StandardCopyOption.REPLACE_EXISTING);
+            }
+            attachmentsCount++;
+        }
+
+        return attachmentsCount;
+    }
+
+    private String getExtension(String filename) {
+        if (filename == null) {
+            return "dat";
+        }
+        String cleaned = StringUtils.cleanPath(filename);
+        if (cleaned.contains("..")) {
+            return "dat";
+        }
+        int i = cleaned.lastIndexOf('.');
+        if (i > 0 && i < cleaned.length() - 1) {
+            String ext = cleaned.substring(i + 1).toLowerCase(Locale.ROOT);
+            if (SAFE_EXTENSION_PATTERN.matcher(ext).matches()) {
+                return ext;
+            }
+        }
+        return "dat";
+    }
+
+    private boolean isCompressedFile(MultipartFile file) {
+        String ext = getExtension(file.getOriginalFilename());
+        if (FORBIDDEN_COMPRESSED_EXTENSIONS.contains(ext)) {
+            return true;
+        }
+        String mime = file.getContentType();
+        return mime != null && FORBIDDEN_COMPRESSED_MIME_TYPES.contains(mime.toLowerCase(Locale.ROOT));
+    }
+
+    private Path resolveWithinStorageRoot(Path relativePath) {
+        try {
+            Path normalizedRelative = relativePath.normalize();
+            if (normalizedRelative.isAbsolute()) {
+                throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Invalid attachment path");
+            }
+            Path absolutePath = STORAGE_ROOT.resolve(normalizedRelative).normalize();
+            if (!absolutePath.startsWith(STORAGE_ROOT)) {
+                throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Invalid attachment path");
+            }
+            return absolutePath;
+        } catch (InvalidPathException e) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Invalid attachment path");
+        }
+    }
+}

backend/src/main/java/com/printcalculator/service/request/CustomQuoteRequestControllerService.java

@@ -0,0 +1,68 @@
+package com.printcalculator.service.request;
+
+import com.printcalculator.dto.QuoteRequestDto;
+import com.printcalculator.entity.CustomQuoteRequest;
+import com.printcalculator.repository.CustomQuoteRequestRepository;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.multipart.MultipartFile;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.io.IOException;
+import java.time.OffsetDateTime;
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+
+@Service
+@Transactional(readOnly = true)
+public class CustomQuoteRequestControllerService {
+
+    private final CustomQuoteRequestRepository requestRepo;
+    private final CustomQuoteRequestAttachmentService attachmentService;
+    private final CustomQuoteRequestNotificationService notificationService;
+
+    public CustomQuoteRequestControllerService(CustomQuoteRequestRepository requestRepo,
+                                               CustomQuoteRequestAttachmentService attachmentService,
+                                               CustomQuoteRequestNotificationService notificationService) {
+        this.requestRepo = requestRepo;
+        this.attachmentService = attachmentService;
+        this.notificationService = notificationService;
+    }
+
+    @Transactional
+    public CustomQuoteRequest createCustomQuoteRequest(QuoteRequestDto requestDto, List<MultipartFile> files) throws IOException {
+        validateConsents(requestDto);
+
+        CustomQuoteRequest request = new CustomQuoteRequest();
+        request.setRequestType(requestDto.getRequestType());
+        request.setCustomerType(requestDto.getCustomerType());
+        request.setEmail(requestDto.getEmail());
+        request.setPhone(requestDto.getPhone());
+        request.setName(requestDto.getName());
+        request.setCompanyName(requestDto.getCompanyName());
+        request.setContactPerson(requestDto.getContactPerson());
+        request.setMessage(requestDto.getMessage());
+        request.setStatus("PENDING");
+        request.setCreatedAt(OffsetDateTime.now());
+        request.setUpdatedAt(OffsetDateTime.now());
+
+        request = requestRepo.save(request);
+
+        int attachmentsCount = attachmentService.storeAttachments(request, files);
+        notificationService.sendNotifications(request, attachmentsCount, requestDto.getLanguage());
+
+        return request;
+    }
+
+    public Optional<CustomQuoteRequest> getCustomQuoteRequest(UUID id) {
+        return requestRepo.findById(id);
+    }
+
+    private void validateConsents(QuoteRequestDto requestDto) {
+        if (!requestDto.isAcceptTerms() || !requestDto.isAcceptPrivacy()) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Accettazione Termini e Privacy obbligatoria.");
+        }
+    }
+}

backend/src/main/java/com/printcalculator/service/request/CustomQuoteRequestNotificationService.java

@@ -0,0 +1,122 @@
+package com.printcalculator.service.request;
+
+import com.printcalculator.entity.CustomQuoteRequest;
+import com.printcalculator.service.email.EmailNotificationService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+
+import java.time.Year;
+import java.time.format.DateTimeFormatter;
+import java.time.format.FormatStyle;
+import java.util.HashMap;
+import java.util.Map;
+
+@Service
+public class CustomQuoteRequestNotificationService {
+
+    private static final Logger logger = LoggerFactory.getLogger(CustomQuoteRequestNotificationService.class);
+
+    private final EmailNotificationService emailNotificationService;
+    private final ContactRequestLocalizationService localizationService;
+
+    @Value("${app.mail.contact-request.admin.enabled:true}")
+    private boolean contactRequestAdminMailEnabled;
+
+    @Value("${app.mail.contact-request.admin.address:infog@3d-fab.ch}")
+    private String contactRequestAdminMailAddress;
+
+    @Value("${app.mail.contact-request.customer.enabled:true}")
+    private boolean contactRequestCustomerMailEnabled;
+
+    public CustomQuoteRequestNotificationService(EmailNotificationService emailNotificationService,
+                                                 ContactRequestLocalizationService localizationService) {
+        this.emailNotificationService = emailNotificationService;
+        this.localizationService = localizationService;
+    }
+
+    public void sendNotifications(CustomQuoteRequest request, int attachmentsCount, String rawLanguage) {
+        String language = localizationService.normalizeLanguage(rawLanguage);
+        sendAdminContactRequestNotification(request, attachmentsCount);
+        sendCustomerContactRequestConfirmation(request, attachmentsCount, language);
+    }
+
+    private void sendAdminContactRequestNotification(CustomQuoteRequest request, int attachmentsCount) {
+        if (!contactRequestAdminMailEnabled) {
+            return;
+        }
+        if (contactRequestAdminMailAddress == null || contactRequestAdminMailAddress.isBlank()) {
+            logger.warn("Contact request admin notification enabled but no admin address configured.");
+            return;
+        }
+
+        Map<String, Object> templateData = new HashMap<>();
+        templateData.put("requestId", request.getId());
+        templateData.put("createdAt", request.getCreatedAt());
+        templateData.put("requestType", safeValue(request.getRequestType()));
+        templateData.put("customerType", safeValue(request.getCustomerType()));
+        templateData.put("name", safeValue(request.getName()));
+        templateData.put("companyName", safeValue(request.getCompanyName()));
+        templateData.put("contactPerson", safeValue(request.getContactPerson()));
+        templateData.put("email", safeValue(request.getEmail()));
+        templateData.put("phone", safeValue(request.getPhone()));
+        templateData.put("message", safeValue(request.getMessage()));
+        templateData.put("attachmentsCount", attachmentsCount);
+        templateData.put("currentYear", Year.now().getValue());
+
+        emailNotificationService.sendEmail(
+                contactRequestAdminMailAddress,
+                "Nuova richiesta di contatto #" + request.getId(),
+                "contact-request-admin",
+                templateData
+        );
+    }
+
+    private void sendCustomerContactRequestConfirmation(CustomQuoteRequest request, int attachmentsCount, String language) {
+        if (!contactRequestCustomerMailEnabled) {
+            return;
+        }
+        if (request.getEmail() == null || request.getEmail().isBlank()) {
+            logger.warn("Contact request confirmation skipped: missing customer email for request {}", request.getId());
+            return;
+        }
+
+        Map<String, Object> templateData = new HashMap<>();
+        templateData.put("requestId", request.getId());
+        templateData.put(
+                "createdAt",
+                request.getCreatedAt().format(
+                        DateTimeFormatter.ofLocalizedDateTime(FormatStyle.MEDIUM)
+                                .withLocale(localizationService.localeForLanguage(language))
+                )
+        );
+        templateData.put("recipientName", localizationService.resolveRecipientName(request, language));
+        templateData.put("requestType", localizationService.localizeRequestType(request.getRequestType(), language));
+        templateData.put("customerType", localizationService.localizeCustomerType(request.getCustomerType(), language));
+        templateData.put("name", safeValue(request.getName()));
+        templateData.put("companyName", safeValue(request.getCompanyName()));
+        templateData.put("contactPerson", safeValue(request.getContactPerson()));
+        templateData.put("email", safeValue(request.getEmail()));
+        templateData.put("phone", safeValue(request.getPhone()));
+        templateData.put("message", safeValue(request.getMessage()));
+        templateData.put("attachmentsCount", attachmentsCount);
+        templateData.put("currentYear", Year.now().getValue());
+
+        String subject = localizationService.applyCustomerContactRequestTexts(templateData, language, request.getId());
+
+        emailNotificationService.sendEmail(
+                request.getEmail(),
+                subject,
+                "contact-request-customer",
+                templateData
+        );
+    }
+
+    private String safeValue(String value) {
+        if (value == null || value.isBlank()) {
+            return "-";
+        }
+        return value;
+    }
+}

backend/src/test/java/com/printcalculator/controller/OrderControllerPrivacyTest.java

@@ -2,14 +2,12 @@ package com.printcalculator.controller;
 
 import com.printcalculator.dto.OrderDto;
 import com.printcalculator.entity.Order;
-import com.printcalculator.repository.CustomerRepository;
 import com.printcalculator.repository.OrderItemRepository;
 import com.printcalculator.repository.OrderRepository;
 import com.printcalculator.repository.PaymentRepository;
-import com.printcalculator.repository.QuoteLineItemRepository;
-import com.printcalculator.repository.QuoteSessionRepository;
 import com.printcalculator.service.payment.InvoicePdfRenderingService;
 import com.printcalculator.service.OrderService;
+import com.printcalculator.service.order.OrderControllerService;
 import com.printcalculator.service.payment.PaymentService;
 import com.printcalculator.service.payment.QrBillService;
 import com.printcalculator.service.storage.StorageService;
@@ -41,12 +39,6 @@ class OrderControllerPrivacyTest {
     @Mock
     private OrderItemRepository orderItemRepo;
     @Mock
-    private QuoteSessionRepository quoteSessionRepo;
-    @Mock
-    private QuoteLineItemRepository quoteLineItemRepo;
-    @Mock
-    private CustomerRepository customerRepo;
-    @Mock
     private StorageService storageService;
     @Mock
     private InvoicePdfRenderingService invoiceService;
@@ -63,13 +55,10 @@ class OrderControllerPrivacyTest {
 
     @BeforeEach
     void setUp() {
-        controller = new OrderController(
+        OrderControllerService orderControllerService = new OrderControllerService(
                 orderService,
                 orderRepo,
                 orderItemRepo,
-                quoteSessionRepo,
-                quoteLineItemRepo,
-                customerRepo,
                 storageService,
                 invoiceService,
                 qrBillService,
@@ -77,6 +66,7 @@ class OrderControllerPrivacyTest {
                 paymentService,
                 paymentRepo
         );
+        controller = new OrderController(orderControllerService);
     }
 
     @Test

backend/src/test/java/com/printcalculator/controller/admin/AdminOrderControllerStatusValidationTest.java

@@ -6,6 +6,8 @@ import com.printcalculator.entity.Order;
 import com.printcalculator.repository.OrderItemRepository;
 import com.printcalculator.repository.OrderRepository;
 import com.printcalculator.repository.PaymentRepository;
+import com.printcalculator.repository.QuoteLineItemRepository;
+import com.printcalculator.service.order.AdminOrderControllerService;
 import com.printcalculator.service.payment.InvoicePdfRenderingService;
 import com.printcalculator.service.payment.PaymentService;
 import com.printcalculator.service.payment.QrBillService;
@@ -41,6 +43,8 @@ class AdminOrderControllerStatusValidationTest {
     @Mock
     private PaymentRepository paymentRepository;
     @Mock
+    private QuoteLineItemRepository quoteLineItemRepository;
+    @Mock
     private PaymentService paymentService;
     @Mock
     private StorageService storageService;
@@ -55,16 +59,18 @@ class AdminOrderControllerStatusValidationTest {
 
     @BeforeEach
     void setUp() {
-        controller = new AdminOrderController(
+        AdminOrderControllerService adminOrderControllerService = new AdminOrderControllerService(
                 orderRepository,
                 orderItemRepository,
                 paymentRepository,
+                quoteLineItemRepository,
                 paymentService,
                 storageService,
                 invoicePdfRenderingService,
                 qrBillService,
                 eventPublisher
         );
+        controller = new AdminOrderController(adminOrderControllerService);
     }
 
     @Test

backend/src/test/java/com/printcalculator/service/QuoteSessionTotalsServiceTest.java

@@ -3,6 +3,8 @@ package com.printcalculator.service;
 import com.printcalculator.entity.PricingPolicy;
 import com.printcalculator.entity.QuoteLineItem;
 import com.printcalculator.entity.QuoteSession;
+import com.printcalculator.entity.NozzleOption;
+import com.printcalculator.repository.NozzleOptionRepository;
 import com.printcalculator.repository.PricingPolicyRepository;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
@@ -20,13 +22,15 @@ import static org.mockito.Mockito.when;
 class QuoteSessionTotalsServiceTest {
     private PricingPolicyRepository pricingRepo;
     private QuoteCalculator quoteCalculator;
+    private NozzleOptionRepository nozzleOptionRepo;
     private QuoteSessionTotalsService service;
 
     @BeforeEach
     void setUp() {
         pricingRepo = mock(PricingPolicyRepository.class);
         quoteCalculator = mock(QuoteCalculator.class);
-        service = new QuoteSessionTotalsService(pricingRepo, quoteCalculator);
+        nozzleOptionRepo = mock(NozzleOptionRepository.class);
+        service = new QuoteSessionTotalsService(pricingRepo, quoteCalculator, nozzleOptionRepo);
     }
 
     @Test
@@ -77,6 +81,51 @@ class QuoteSessionTotalsServiceTest {
         assertAmountEquals("120.00", totals.grandTotalChf());
     }
 
+    @Test
+    void compute_WithRepeatedNozzleAcrossItems_ShouldChargeNozzleFeeOnlyOncePerType() {
+        QuoteSession session = new QuoteSession();
+        session.setSetupCostChf(new BigDecimal("2.00"));
+
+        QuoteLineItem itemA = createItem(new BigDecimal("10.00"), 3, 3600, "0.60");
+        QuoteLineItem itemB = createItem(new BigDecimal("4.00"), 2, 1200, "0.60");
+        QuoteLineItem itemC = createItem(new BigDecimal("5.00"), 1, 600, "0.80");
+
+        PricingPolicy policy = new PricingPolicy();
+        when(pricingRepo.findFirstByIsActiveTrueOrderByValidFromDesc()).thenReturn(policy);
+        when(quoteCalculator.calculateSessionMachineCost(eq(policy), any(BigDecimal.class))).thenReturn(BigDecimal.ZERO);
+        when(nozzleOptionRepo.findFirstByNozzleDiameterMmAndIsActiveTrue(new BigDecimal("0.60")))
+                .thenReturn(java.util.Optional.of(nozzleOption("0.60", "1.50")));
+        when(nozzleOptionRepo.findFirstByNozzleDiameterMmAndIsActiveTrue(new BigDecimal("0.80")))
+                .thenReturn(java.util.Optional.of(nozzleOption("0.80", "1.50")));
+
+        QuoteSessionTotalsService.QuoteSessionTotals totals = service.compute(session, List.of(itemA, itemB, itemC));
+
+        assertAmountEquals("43.00", totals.itemsTotalChf());
+        assertAmountEquals("3.00", totals.nozzleChangeCostChf());
+        assertAmountEquals("5.00", totals.setupCostChf());
+        assertAmountEquals("50.00", totals.grandTotalChf());
+    }
+
+    private QuoteLineItem createItem(BigDecimal unitPrice, int quantity, int printSeconds, String nozzleMm) {
+        QuoteLineItem item = new QuoteLineItem();
+        item.setQuantity(quantity);
+        item.setUnitPriceChf(unitPrice);
+        item.setPrintTimeSeconds(printSeconds);
+        item.setNozzleDiameterMm(new BigDecimal(nozzleMm));
+        item.setBoundingBoxXMm(new BigDecimal("10"));
+        item.setBoundingBoxYMm(new BigDecimal("10"));
+        item.setBoundingBoxZMm(new BigDecimal("10"));
+        return item;
+    }
+
+    private NozzleOption nozzleOption(String diameterMm, String feeChf) {
+        NozzleOption option = new NozzleOption();
+        option.setNozzleDiameterMm(new BigDecimal(diameterMm));
+        option.setExtraNozzleChangeFeeChf(new BigDecimal(feeChf));
+        option.setIsActive(true);
+        return option;
+    }
+
     private void assertAmountEquals(String expected, BigDecimal actual) {
         assertTrue(new BigDecimal(expected).compareTo(actual) == 0,
                 "Expected " + expected + " but got " + actual);

backend/src/test/java/com/printcalculator/service/admin/AdminFilamentControllerServiceTest.java

@@ -0,0 +1,174 @@
+package com.printcalculator.service.admin;
+
+import com.printcalculator.dto.AdminFilamentMaterialTypeDto;
+import com.printcalculator.dto.AdminFilamentVariantDto;
+import com.printcalculator.dto.AdminUpsertFilamentMaterialTypeRequest;
+import com.printcalculator.dto.AdminUpsertFilamentVariantRequest;
+import com.printcalculator.entity.FilamentMaterialType;
+import com.printcalculator.entity.FilamentVariant;
+import com.printcalculator.repository.FilamentMaterialTypeRepository;
+import com.printcalculator.repository.FilamentVariantRepository;
+import com.printcalculator.repository.OrderItemRepository;
+import com.printcalculator.repository.QuoteLineItemRepository;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.math.BigDecimal;
+import java.util.List;
+import java.util.Optional;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+class AdminFilamentControllerServiceTest {
+
+    @Mock
+    private FilamentMaterialTypeRepository materialRepo;
+    @Mock
+    private FilamentVariantRepository variantRepo;
+    @Mock
+    private QuoteLineItemRepository quoteLineItemRepo;
+    @Mock
+    private OrderItemRepository orderItemRepo;
+
+    @InjectMocks
+    private AdminFilamentControllerService service;
+
+    @Test
+    void createMaterial_withDuplicateCode_shouldReturnBadRequest() {
+        AdminUpsertFilamentMaterialTypeRequest payload = new AdminUpsertFilamentMaterialTypeRequest();
+        payload.setMaterialCode("pla");
+
+        FilamentMaterialType existing = new FilamentMaterialType();
+        existing.setId(1L);
+        existing.setMaterialCode("PLA");
+        when(materialRepo.findByMaterialCode("PLA")).thenReturn(Optional.of(existing));
+
+        ResponseStatusException ex = assertThrows(
+                ResponseStatusException.class,
+                () -> service.createMaterial(payload)
+        );
+
+        assertEquals(HttpStatus.BAD_REQUEST, ex.getStatusCode());
+        verify(materialRepo, never()).save(any(FilamentMaterialType.class));
+    }
+
+    @Test
+    void createVariant_withInvalidColorHex_shouldReturnBadRequest() {
+        FilamentMaterialType material = new FilamentMaterialType();
+        material.setId(10L);
+        material.setMaterialCode("PLA");
+        when(materialRepo.findById(10L)).thenReturn(Optional.of(material));
+        when(variantRepo.findByFilamentMaterialTypeAndVariantDisplayName(material, "Sunset Orange"))
+                .thenReturn(Optional.empty());
+
+        AdminUpsertFilamentVariantRequest payload = baseVariantPayload();
+        payload.setColorHex("#12");
+
+        ResponseStatusException ex = assertThrows(
+                ResponseStatusException.class,
+                () -> service.createVariant(payload)
+        );
+
+        assertEquals(HttpStatus.BAD_REQUEST, ex.getStatusCode());
+        verify(variantRepo, never()).save(any(FilamentVariant.class));
+    }
+
+    @Test
+    void createVariant_withValidPayload_shouldNormalizeDerivedFields() {
+        FilamentMaterialType material = new FilamentMaterialType();
+        material.setId(10L);
+        material.setMaterialCode("PLA");
+        when(materialRepo.findById(10L)).thenReturn(Optional.of(material));
+        when(variantRepo.findByFilamentMaterialTypeAndVariantDisplayName(material, "Sunset Orange"))
+                .thenReturn(Optional.empty());
+        when(variantRepo.save(any(FilamentVariant.class))).thenAnswer(invocation -> {
+            FilamentVariant variant = invocation.getArgument(0);
+            variant.setId(42L);
+            return variant;
+        });
+
+        AdminUpsertFilamentVariantRequest payload = baseVariantPayload();
+        payload.setFinishType("matte");
+        payload.setIsMatte(false);
+        payload.setBrand("  Prusa  ");
+        payload.setIsActive(null);
+
+        AdminFilamentVariantDto dto = service.createVariant(payload);
+
+        ArgumentCaptor<FilamentVariant> captor = ArgumentCaptor.forClass(FilamentVariant.class);
+        verify(variantRepo).save(captor.capture());
+        FilamentVariant saved = captor.getValue();
+
+        assertEquals(42L, dto.getId());
+        assertEquals("MATTE", saved.getFinishType());
+        assertTrue(saved.getIsMatte());
+        assertEquals("Prusa", saved.getBrand());
+        assertTrue(saved.getIsActive());
+    }
+
+    @Test
+    void deleteVariant_whenInUse_shouldReturnConflict() {
+        Long variantId = 11L;
+        FilamentVariant variant = new FilamentVariant();
+        variant.setId(variantId);
+
+        when(variantRepo.findById(variantId)).thenReturn(Optional.of(variant));
+        when(quoteLineItemRepo.existsByFilamentVariant_Id(variantId)).thenReturn(true);
+
+        ResponseStatusException ex = assertThrows(
+                ResponseStatusException.class,
+                () -> service.deleteVariant(variantId)
+        );
+
+        assertEquals(HttpStatus.CONFLICT, ex.getStatusCode());
+        verify(variantRepo, never()).delete(any(FilamentVariant.class));
+    }
+
+    @Test
+    void getMaterials_shouldReturnAlphabeticalByCode() {
+        FilamentMaterialType abs = new FilamentMaterialType();
+        abs.setId(2L);
+        abs.setMaterialCode("ABS");
+
+        FilamentMaterialType pla = new FilamentMaterialType();
+        pla.setId(1L);
+        pla.setMaterialCode("PLA");
+
+        when(materialRepo.findAll()).thenReturn(List.of(pla, abs));
+
+        List<AdminFilamentMaterialTypeDto> result = service.getMaterials();
+
+        assertEquals(2, result.size());
+        assertEquals("ABS", result.get(0).getMaterialCode());
+        assertEquals("PLA", result.get(1).getMaterialCode());
+    }
+
+    private AdminUpsertFilamentVariantRequest baseVariantPayload() {
+        AdminUpsertFilamentVariantRequest payload = new AdminUpsertFilamentVariantRequest();
+        payload.setMaterialTypeId(10L);
+        payload.setVariantDisplayName("Sunset Orange");
+        payload.setColorName("Orange");
+        payload.setColorHex("#FF8800");
+        payload.setFinishType("GLOSSY");
+        payload.setIsMatte(false);
+        payload.setIsSpecial(false);
+        payload.setCostChfPerKg(new BigDecimal("29.90"));
+        payload.setStockSpools(new BigDecimal("2.000"));
+        payload.setSpoolNetKg(new BigDecimal("1.000"));
+        payload.setIsActive(true);
+        return payload;
+    }
+}

backend/src/test/java/com/printcalculator/service/admin/AdminOperationsControllerServiceTest.java

@@ -0,0 +1,211 @@
+package com.printcalculator.service.admin;
+
+import com.printcalculator.dto.AdminCadInvoiceCreateRequest;
+import com.printcalculator.dto.AdminCadInvoiceDto;
+import com.printcalculator.dto.AdminContactRequestDetailDto;
+import com.printcalculator.dto.AdminUpdateContactRequestStatusRequest;
+import com.printcalculator.entity.CustomQuoteRequest;
+import com.printcalculator.entity.CustomQuoteRequestAttachment;
+import com.printcalculator.entity.PricingPolicy;
+import com.printcalculator.entity.QuoteSession;
+import com.printcalculator.repository.CustomQuoteRequestAttachmentRepository;
+import com.printcalculator.repository.CustomQuoteRequestRepository;
+import com.printcalculator.repository.FilamentVariantRepository;
+import com.printcalculator.repository.FilamentVariantStockKgRepository;
+import com.printcalculator.repository.OrderRepository;
+import com.printcalculator.repository.PricingPolicyRepository;
+import com.printcalculator.repository.QuoteLineItemRepository;
+import com.printcalculator.repository.QuoteSessionRepository;
+import com.printcalculator.service.QuoteSessionTotalsService;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.math.BigDecimal;
+import java.time.OffsetDateTime;
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyList;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+class AdminOperationsControllerServiceTest {
+
+    @Mock
+    private FilamentVariantStockKgRepository filamentStockRepo;
+    @Mock
+    private FilamentVariantRepository filamentVariantRepo;
+    @Mock
+    private CustomQuoteRequestRepository customQuoteRequestRepo;
+    @Mock
+    private CustomQuoteRequestAttachmentRepository customQuoteRequestAttachmentRepo;
+    @Mock
+    private QuoteSessionRepository quoteSessionRepo;
+    @Mock
+    private QuoteLineItemRepository quoteLineItemRepo;
+    @Mock
+    private OrderRepository orderRepo;
+    @Mock
+    private PricingPolicyRepository pricingRepo;
+    @Mock
+    private QuoteSessionTotalsService quoteSessionTotalsService;
+
+    @InjectMocks
+    private AdminOperationsControllerService service;
+
+    @Test
+    void updateContactRequestStatus_withInvalidStatus_shouldReturnBadRequest() {
+        UUID requestId = UUID.randomUUID();
+        CustomQuoteRequest request = new CustomQuoteRequest();
+        request.setId(requestId);
+        request.setStatus("PENDING");
+        when(customQuoteRequestRepo.findById(requestId)).thenReturn(Optional.of(request));
+
+        AdminUpdateContactRequestStatusRequest payload = new AdminUpdateContactRequestStatusRequest();
+        payload.setStatus("wrong");
+
+        ResponseStatusException ex = assertThrows(
+                ResponseStatusException.class,
+                () -> service.updateContactRequestStatus(requestId, payload)
+        );
+
+        assertEquals(HttpStatus.BAD_REQUEST, ex.getStatusCode());
+        verify(customQuoteRequestRepo, never()).save(any(CustomQuoteRequest.class));
+    }
+
+    @Test
+    void updateContactRequestStatus_withValidStatus_shouldPersistAndReturnDetail() {
+        UUID requestId = UUID.randomUUID();
+        CustomQuoteRequest request = new CustomQuoteRequest();
+        request.setId(requestId);
+        request.setStatus("PENDING");
+        request.setCreatedAt(OffsetDateTime.now());
+        request.setUpdatedAt(OffsetDateTime.now());
+
+        CustomQuoteRequestAttachment attachment = new CustomQuoteRequestAttachment();
+        attachment.setId(UUID.randomUUID());
+        attachment.setOriginalFilename("drawing.stp");
+        attachment.setMimeType("application/step");
+        attachment.setFileSizeBytes(123L);
+        attachment.setCreatedAt(OffsetDateTime.now());
+
+        when(customQuoteRequestRepo.findById(requestId)).thenReturn(Optional.of(request));
+        when(customQuoteRequestRepo.save(any(CustomQuoteRequest.class))).thenAnswer(invocation -> invocation.getArgument(0));
+        when(customQuoteRequestAttachmentRepo.findByRequest_IdOrderByCreatedAtAsc(requestId)).thenReturn(List.of(attachment));
+
+        AdminUpdateContactRequestStatusRequest payload = new AdminUpdateContactRequestStatusRequest();
+        payload.setStatus("done");
+
+        AdminContactRequestDetailDto dto = service.updateContactRequestStatus(requestId, payload);
+
+        assertEquals("DONE", dto.getStatus());
+        assertNotNull(dto.getUpdatedAt());
+        assertEquals(1, dto.getAttachments().size());
+        verify(customQuoteRequestRepo).save(request);
+    }
+
+    @Test
+    void createOrUpdateCadInvoice_withMissingCadHours_shouldReturnBadRequest() {
+        AdminCadInvoiceCreateRequest payload = new AdminCadInvoiceCreateRequest();
+
+        ResponseStatusException ex = assertThrows(
+                ResponseStatusException.class,
+                () -> service.createOrUpdateCadInvoice(payload)
+        );
+
+        assertEquals(HttpStatus.BAD_REQUEST, ex.getStatusCode());
+    }
+
+    @Test
+    void createOrUpdateCadInvoice_withConvertedSession_shouldReturnConflict() {
+        UUID sessionId = UUID.randomUUID();
+        QuoteSession session = new QuoteSession();
+        session.setId(sessionId);
+        session.setStatus("CONVERTED");
+
+        when(quoteSessionRepo.findById(sessionId)).thenReturn(Optional.of(session));
+
+        AdminCadInvoiceCreateRequest payload = new AdminCadInvoiceCreateRequest();
+        payload.setSessionId(sessionId);
+        payload.setCadHours(new BigDecimal("1.0"));
+
+        ResponseStatusException ex = assertThrows(
+                ResponseStatusException.class,
+                () -> service.createOrUpdateCadInvoice(payload)
+        );
+
+        assertEquals(HttpStatus.CONFLICT, ex.getStatusCode());
+    }
+
+    @Test
+    void createOrUpdateCadInvoice_withNewSession_shouldUsePolicyCadRate() {
+        PricingPolicy policy = new PricingPolicy();
+        policy.setCadCostChfPerHour(new BigDecimal("85"));
+
+        when(pricingRepo.findFirstByIsActiveTrueOrderByValidFromDesc()).thenReturn(policy);
+        when(quoteSessionRepo.save(any(QuoteSession.class))).thenAnswer(invocation -> {
+            QuoteSession session = invocation.getArgument(0);
+            if (session.getId() == null) {
+                session.setId(UUID.randomUUID());
+            }
+            return session;
+        });
+        when(quoteLineItemRepo.findByQuoteSessionId(any(UUID.class))).thenReturn(List.of());
+        when(quoteSessionTotalsService.compute(any(QuoteSession.class), anyList()))
+                .thenReturn(new QuoteSessionTotalsService.QuoteSessionTotals(
+                        BigDecimal.ZERO,
+                        BigDecimal.ZERO,
+                        new BigDecimal("212.50"),
+                        new BigDecimal("212.50"),
+                        BigDecimal.ZERO,
+                        BigDecimal.ZERO,
+                        BigDecimal.ZERO,
+                        BigDecimal.ZERO,
+                        new BigDecimal("212.50"),
+                        BigDecimal.ZERO
+                ));
+
+        AdminCadInvoiceCreateRequest payload = new AdminCadInvoiceCreateRequest();
+        payload.setCadHours(new BigDecimal("2.5"));
+        payload.setCadHourlyRateChf(null);
+        payload.setNotes("  Custom CAD work  ");
+
+        AdminCadInvoiceDto dto = service.createOrUpdateCadInvoice(payload);
+
+        assertEquals("CAD_ACTIVE", dto.getSessionStatus());
+        assertEquals(new BigDecimal("2.50"), dto.getCadHours());
+        assertEquals(new BigDecimal("85.00"), dto.getCadHourlyRateChf());
+        assertEquals("Custom CAD work", dto.getNotes());
+        assertEquals(new BigDecimal("212.50"), dto.getCadTotalChf());
+    }
+
+    @Test
+    void deleteQuoteSession_whenLinkedToOrder_shouldReturnConflict() {
+        UUID sessionId = UUID.randomUUID();
+        QuoteSession session = new QuoteSession();
+        session.setId(sessionId);
+
+        when(quoteSessionRepo.findById(sessionId)).thenReturn(Optional.of(session));
+        when(orderRepo.existsBySourceQuoteSession_Id(sessionId)).thenReturn(true);
+
+        ResponseStatusException ex = assertThrows(
+                ResponseStatusException.class,
+                () -> service.deleteQuoteSession(sessionId)
+        );
+
+        assertEquals(HttpStatus.CONFLICT, ex.getStatusCode());
+        verify(quoteSessionRepo, never()).delete(any(QuoteSession.class));
+    }
+}

backend/src/test/java/com/printcalculator/service/order/AdminOrderControllerServiceTest.java

@@ -0,0 +1,228 @@
+package com.printcalculator.service.order;
+
+import com.printcalculator.dto.AdminOrderStatusUpdateRequest;
+import com.printcalculator.dto.OrderDto;
+import com.printcalculator.entity.FilamentVariant;
+import com.printcalculator.entity.Order;
+import com.printcalculator.entity.OrderItem;
+import com.printcalculator.entity.Payment;
+import com.printcalculator.event.OrderShippedEvent;
+import com.printcalculator.repository.OrderItemRepository;
+import com.printcalculator.repository.OrderRepository;
+import com.printcalculator.repository.PaymentRepository;
+import com.printcalculator.repository.QuoteLineItemRepository;
+import com.printcalculator.service.payment.InvoicePdfRenderingService;
+import com.printcalculator.service.payment.PaymentService;
+import com.printcalculator.service.payment.QrBillService;
+import com.printcalculator.service.storage.StorageService;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.context.ApplicationEventPublisher;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.math.BigDecimal;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+class AdminOrderControllerServiceTest {
+
+    @Mock
+    private OrderRepository orderRepo;
+    @Mock
+    private OrderItemRepository orderItemRepo;
+    @Mock
+    private PaymentRepository paymentRepo;
+    @Mock
+    private QuoteLineItemRepository quoteLineItemRepo;
+    @Mock
+    private PaymentService paymentService;
+    @Mock
+    private StorageService storageService;
+    @Mock
+    private InvoicePdfRenderingService invoiceService;
+    @Mock
+    private QrBillService qrBillService;
+    @Mock
+    private ApplicationEventPublisher eventPublisher;
+
+    @InjectMocks
+    private AdminOrderControllerService service;
+
+    @Test
+    void updatePaymentMethod_withBlankMethod_shouldReturnBadRequest() {
+        UUID orderId = UUID.randomUUID();
+        when(orderRepo.findById(orderId)).thenReturn(Optional.of(buildOrder(orderId, "PENDING_PAYMENT")));
+
+        ResponseStatusException ex = assertThrows(
+                ResponseStatusException.class,
+                () -> service.updatePaymentMethod(orderId, Map.of("method", " "))
+        );
+
+        assertEquals(HttpStatus.BAD_REQUEST, ex.getStatusCode());
+        verify(paymentService, never()).updatePaymentMethod(any(), any());
+    }
+
+    @Test
+    void updatePaymentMethod_withValidMethod_shouldDelegateAndReturnUpdatedDto() {
+        UUID orderId = UUID.randomUUID();
+        Order order = buildOrder(orderId, "PENDING_PAYMENT");
+        Payment payment = new Payment();
+        payment.setMethod("BANK_TRANSFER");
+        payment.setStatus("PENDING");
+
+        when(orderRepo.findById(orderId)).thenReturn(Optional.of(order));
+        when(orderItemRepo.findByOrder_Id(orderId)).thenReturn(List.of());
+        when(paymentRepo.findByOrder_Id(orderId)).thenReturn(Optional.of(payment));
+
+        OrderDto dto = service.updatePaymentMethod(orderId, Map.of("method", "BANK_TRANSFER"));
+
+        assertEquals("BANK_TRANSFER", dto.getPaymentMethod());
+        assertEquals("PENDING", dto.getPaymentStatus());
+        verify(paymentService).updatePaymentMethod(orderId, "BANK_TRANSFER");
+    }
+
+    @Test
+    void updateOrderStatus_toShipped_shouldPublishOrderShippedEvent() {
+        UUID orderId = UUID.randomUUID();
+        Order order = buildOrder(orderId, "PAID");
+
+        when(orderRepo.findById(orderId)).thenReturn(Optional.of(order));
+        when(orderRepo.save(any(Order.class))).thenAnswer(invocation -> invocation.getArgument(0));
+        when(orderItemRepo.findByOrder_Id(orderId)).thenReturn(List.of());
+        when(paymentRepo.findByOrder_Id(orderId)).thenReturn(Optional.empty());
+
+        AdminOrderStatusUpdateRequest payload = new AdminOrderStatusUpdateRequest();
+        payload.setStatus("shipped");
+
+        OrderDto dto = service.updateOrderStatus(orderId, payload);
+
+        assertEquals("SHIPPED", dto.getStatus());
+        verify(eventPublisher).publishEvent(any(OrderShippedEvent.class));
+    }
+
+    @Test
+    void updateOrderStatus_fromShippedToShipped_shouldNotPublishEvent() {
+        UUID orderId = UUID.randomUUID();
+        Order order = buildOrder(orderId, "SHIPPED");
+
+        when(orderRepo.findById(orderId)).thenReturn(Optional.of(order));
+        when(orderRepo.save(any(Order.class))).thenAnswer(invocation -> invocation.getArgument(0));
+        when(orderItemRepo.findByOrder_Id(orderId)).thenReturn(List.of());
+        when(paymentRepo.findByOrder_Id(orderId)).thenReturn(Optional.empty());
+
+        AdminOrderStatusUpdateRequest payload = new AdminOrderStatusUpdateRequest();
+        payload.setStatus("SHIPPED");
+
+        service.updateOrderStatus(orderId, payload);
+
+        verify(eventPublisher, never()).publishEvent(any(OrderShippedEvent.class));
+    }
+
+    @Test
+    void downloadOrderItemFile_withInvalidRelativePath_shouldReturnNotFound() {
+        UUID orderId = UUID.randomUUID();
+        UUID orderItemId = UUID.randomUUID();
+
+        Order order = buildOrder(orderId, "PAID");
+        OrderItem item = new OrderItem();
+        item.setId(orderItemId);
+        item.setOrder(order);
+        item.setStoredRelativePath("../escape/path.stl");
+
+        when(orderItemRepo.findById(orderItemId)).thenReturn(Optional.of(item));
+
+        ResponseStatusException ex = assertThrows(
+                ResponseStatusException.class,
+                () -> service.downloadOrderItemFile(orderId, orderItemId)
+        );
+
+        assertEquals(HttpStatus.NOT_FOUND, ex.getStatusCode());
+    }
+
+    @Test
+    void getOrder_shouldIncludePerItemPrintSettingsAndVariantMetadata() {
+        UUID orderId = UUID.randomUUID();
+        Order order = buildOrder(orderId, "PAID");
+
+        FilamentVariant variant = new FilamentVariant();
+        variant.setId(42L);
+        variant.setVariantDisplayName("PLA Arancione Opaco");
+        variant.setColorName("Arancione");
+        variant.setColorHex("#ff7a00");
+
+        OrderItem item = new OrderItem();
+        item.setId(UUID.randomUUID());
+        item.setOrder(order);
+        item.setOriginalFilename("obj_4_Part 1.stl");
+        item.setMaterialCode("PLA");
+        item.setColorCode("Arancione");
+        item.setFilamentVariant(variant);
+        item.setQuality("standard");
+        item.setNozzleDiameterMm(new BigDecimal("0.60"));
+        item.setLayerHeightMm(new BigDecimal("0.24"));
+        item.setInfillPercent(15);
+        item.setInfillPattern("grid");
+        item.setSupportsEnabled(Boolean.FALSE);
+        item.setQuantity(1);
+        item.setPrintTimeSeconds(2340);
+        item.setMaterialGrams(new BigDecimal("22.76"));
+        item.setUnitPriceChf(new BigDecimal("0.99"));
+        item.setLineTotalChf(new BigDecimal("0.99"));
+
+        when(orderRepo.findById(orderId)).thenReturn(Optional.of(order));
+        when(orderItemRepo.findByOrder_Id(orderId)).thenReturn(List.of(item));
+        when(paymentRepo.findByOrder_Id(orderId)).thenReturn(Optional.empty());
+
+        OrderDto dto = service.getOrder(orderId);
+
+        assertEquals(1, dto.getItems().size());
+        var itemDto = dto.getItems().get(0);
+        assertEquals(new BigDecimal("0.60"), itemDto.getNozzleDiameterMm());
+        assertEquals(new BigDecimal("0.24"), itemDto.getLayerHeightMm());
+        assertEquals(15, itemDto.getInfillPercent());
+        assertEquals("grid", itemDto.getInfillPattern());
+        assertEquals(Boolean.FALSE, itemDto.getSupportsEnabled());
+        assertEquals(42L, itemDto.getFilamentVariantId());
+        assertEquals("PLA Arancione Opaco", itemDto.getFilamentVariantDisplayName());
+        assertEquals("Arancione", itemDto.getFilamentColorName());
+        assertEquals("#ff7a00", itemDto.getFilamentColorHex());
+    }
+
+    private Order buildOrder(UUID orderId, String status) {
+        Order order = new Order();
+        order.setId(orderId);
+        order.setStatus(status);
+        order.setCustomerEmail("customer@example.com");
+        order.setCustomerPhone("+41910000000");
+        order.setBillingCustomerType("PRIVATE");
+        order.setBillingFirstName("Mario");
+        order.setBillingLastName("Rossi");
+        order.setBillingAddressLine1("Via Test 1");
+        order.setBillingZip("6900");
+        order.setBillingCity("Lugano");
+        order.setBillingCountryCode("CH");
+        order.setShippingSameAsBilling(true);
+        order.setCurrency("CHF");
+        order.setSetupCostChf(BigDecimal.ZERO);
+        order.setShippingCostChf(BigDecimal.ZERO);
+        order.setDiscountChf(BigDecimal.ZERO);
+        order.setSubtotalChf(BigDecimal.ZERO);
+        order.setCadTotalChf(BigDecimal.ZERO);
+        order.setTotalChf(BigDecimal.ZERO);
+        return order;
+    }
+}

backend/src/test/java/com/printcalculator/service/order/OrderControllerServiceTest.java

@@ -0,0 +1,183 @@
+package com.printcalculator.service.order;
+
+import com.printcalculator.dto.OrderDto;
+import com.printcalculator.entity.Order;
+import com.printcalculator.entity.OrderItem;
+import com.printcalculator.repository.OrderItemRepository;
+import com.printcalculator.repository.OrderRepository;
+import com.printcalculator.repository.PaymentRepository;
+import com.printcalculator.service.OrderService;
+import com.printcalculator.service.payment.InvoicePdfRenderingService;
+import com.printcalculator.service.payment.PaymentService;
+import com.printcalculator.service.payment.QrBillService;
+import com.printcalculator.service.payment.TwintPaymentService;
+import com.printcalculator.service.storage.StorageService;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.mock.web.MockMultipartFile;
+
+import java.math.BigDecimal;
+import java.nio.file.Path;
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.assertArrayEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+class OrderControllerServiceTest {
+
+    @Mock
+    private OrderService orderService;
+    @Mock
+    private OrderRepository orderRepo;
+    @Mock
+    private OrderItemRepository orderItemRepo;
+    @Mock
+    private StorageService storageService;
+    @Mock
+    private InvoicePdfRenderingService invoiceService;
+    @Mock
+    private QrBillService qrBillService;
+    @Mock
+    private TwintPaymentService twintPaymentService;
+    @Mock
+    private PaymentService paymentService;
+    @Mock
+    private PaymentRepository paymentRepo;
+
+    @InjectMocks
+    private OrderControllerService service;
+
+    @Test
+    void uploadOrderItemFile_withOrderMismatch_shouldReturnFalse() throws Exception {
+        UUID expectedOrderId = UUID.randomUUID();
+        UUID wrongOrderId = UUID.randomUUID();
+        UUID orderItemId = UUID.randomUUID();
+
+        Order order = new Order();
+        order.setId(expectedOrderId);
+
+        OrderItem item = new OrderItem();
+        item.setId(orderItemId);
+        item.setOrder(order);
+        item.setStoredRelativePath("PENDING");
+
+        when(orderItemRepo.findById(orderItemId)).thenReturn(Optional.of(item));
+
+        MockMultipartFile file = new MockMultipartFile("file", "part.stl", "model/stl", "solid".getBytes());
+
+        boolean result = service.uploadOrderItemFile(wrongOrderId, orderItemId, file);
+
+        assertFalse(result);
+        verify(storageService, never()).store(any(MockMultipartFile.class), any(Path.class));
+        verify(orderItemRepo, never()).save(any(OrderItem.class));
+    }
+
+    @Test
+    void uploadOrderItemFile_withPendingPath_shouldStoreAndPersistMetadata() throws Exception {
+        UUID orderId = UUID.randomUUID();
+        UUID orderItemId = UUID.randomUUID();
+
+        Order order = new Order();
+        order.setId(orderId);
+
+        OrderItem item = new OrderItem();
+        item.setId(orderItemId);
+        item.setOrder(order);
+        item.setStoredRelativePath("PENDING");
+
+        when(orderItemRepo.findById(orderItemId)).thenReturn(Optional.of(item));
+
+        MockMultipartFile file = new MockMultipartFile("file", "model.STL", "model/stl", "mesh".getBytes());
+
+        boolean result = service.uploadOrderItemFile(orderId, orderItemId, file);
+
+        assertTrue(result);
+
+        ArgumentCaptor<Path> pathCaptor = ArgumentCaptor.forClass(Path.class);
+        verify(storageService).store(eq(file), pathCaptor.capture());
+        Path storedPath = pathCaptor.getValue();
+        assertTrue(storedPath.startsWith(Path.of("orders", orderId.toString(), "3d-files", orderItemId.toString())));
+
+        assertTrue(item.getStoredFilename().endsWith(".stl"));
+        assertEquals(file.getSize(), item.getFileSizeBytes());
+        assertEquals("model/stl", item.getMimeType());
+        verify(orderItemRepo).save(item);
+    }
+
+    @Test
+    void getOrder_withShippedStatus_shouldRedactPersonalData() {
+        UUID orderId = UUID.randomUUID();
+        Order order = buildOrder(orderId, "SHIPPED");
+
+        when(orderRepo.findById(orderId)).thenReturn(Optional.of(order));
+        when(orderItemRepo.findByOrder_Id(orderId)).thenReturn(List.of());
+        when(paymentRepo.findByOrder_Id(orderId)).thenReturn(Optional.empty());
+
+        Optional<OrderDto> result = service.getOrder(orderId);
+
+        assertTrue(result.isPresent());
+        OrderDto dto = result.get();
+        assertNull(dto.getCustomerEmail());
+        assertNull(dto.getCustomerPhone());
+        assertNull(dto.getBillingAddress());
+        assertNull(dto.getShippingAddress());
+    }
+
+    @Test
+    void getTwintQr_withOversizedInput_shouldClampSizeTo600() {
+        UUID orderId = UUID.randomUUID();
+        Order order = buildOrder(orderId, "PENDING_PAYMENT");
+
+        byte[] png = new byte[]{1, 2, 3};
+        when(orderRepo.findById(orderId)).thenReturn(Optional.of(order));
+        when(twintPaymentService.generateQrPng(order, 600)).thenReturn(png);
+
+        ResponseEntity<byte[]> response = service.getTwintQr(orderId, 5000);
+
+        assertEquals(200, response.getStatusCode().value());
+        assertEquals(MediaType.IMAGE_PNG, response.getHeaders().getContentType());
+        assertArrayEquals(png, response.getBody());
+        verify(twintPaymentService).generateQrPng(order, 600);
+    }
+
+    private Order buildOrder(UUID orderId, String status) {
+        Order order = new Order();
+        order.setId(orderId);
+        order.setStatus(status);
+        order.setCustomerEmail("customer@example.com");
+        order.setCustomerPhone("+41910000000");
+        order.setBillingCustomerType("PRIVATE");
+        order.setBillingFirstName("Mario");
+        order.setBillingLastName("Rossi");
+        order.setBillingAddressLine1("Via Test 1");
+        order.setBillingZip("6900");
+        order.setBillingCity("Lugano");
+        order.setBillingCountryCode("CH");
+        order.setShippingSameAsBilling(true);
+        order.setCurrency("CHF");
+        order.setSetupCostChf(BigDecimal.ZERO);
+        order.setShippingCostChf(BigDecimal.ZERO);
+        order.setDiscountChf(BigDecimal.ZERO);
+        order.setSubtotalChf(BigDecimal.ZERO);
+        order.setCadTotalChf(BigDecimal.ZERO);
+        order.setTotalChf(BigDecimal.ZERO);
+        return order;
+    }
+}

backend/src/test/java/com/printcalculator/service/request/ContactRequestLocalizationServiceTest.java

@@ -0,0 +1,74 @@
+package com.printcalculator.service.request;
+
+import com.printcalculator.entity.CustomQuoteRequest;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.util.HashMap;
+import java.util.Locale;
+import java.util.Map;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class ContactRequestLocalizationServiceTest {
+
+    private ContactRequestLocalizationService service;
+
+    @BeforeEach
+    void setUp() {
+        service = new ContactRequestLocalizationService();
+    }
+
+    @Test
+    void normalizeLanguage_shouldMapKnownPrefixes() {
+        assertEquals("de", service.normalizeLanguage("de-CH"));
+        assertEquals("en", service.normalizeLanguage("EN"));
+        assertEquals("fr", service.normalizeLanguage("fr_CA"));
+        assertEquals("it", service.normalizeLanguage(""));
+    }
+
+    @Test
+    void resolveRecipientName_shouldUsePriorityAndFallback() {
+        CustomQuoteRequest request = new CustomQuoteRequest();
+        request.setName("Mario Rossi");
+        assertEquals("Mario Rossi", service.resolveRecipientName(request, "it"));
+
+        request.setName(" ");
+        request.setContactPerson("Laura Bianchi");
+        assertEquals("Laura Bianchi", service.resolveRecipientName(request, "it"));
+
+        request.setContactPerson(" ");
+        request.setCompanyName("3D Fab SA");
+        assertEquals("3D Fab SA", service.resolveRecipientName(request, "it"));
+
+        request.setCompanyName(" ");
+        assertEquals("customer", service.resolveRecipientName(request, "en"));
+    }
+
+    @Test
+    void applyCustomerContactRequestTexts_shouldPopulateLocalizedLabels() {
+        Map<String, Object> templateData = new HashMap<>();
+        templateData.put("recipientName", "Mario");
+        UUID requestId = UUID.randomUUID();
+
+        String subject = service.applyCustomerContactRequestTexts(templateData, "fr", requestId);
+
+        assertEquals("Nous avons recu votre demande de contact #" + requestId + " - 3D-Fab", subject);
+        assertEquals("Date", templateData.get("labelDate"));
+        assertEquals("Bonjour Mario,", templateData.get("greetingText"));
+    }
+
+    @Test
+    void localizeRequestType_andCustomerType_shouldReturnExpectedValues() {
+        assertEquals("Custom part request", service.localizeRequestType("print_service", "en"));
+        assertEquals("Azienda", service.localizeCustomerType("business", "it"));
+        assertEquals("-", service.localizeCustomerType(null, "de"));
+    }
+
+    @Test
+    void localeForLanguage_shouldReturnExpectedLocale() {
+        assertEquals(Locale.GERMAN, service.localeForLanguage("de"));
+        assertEquals(Locale.ITALIAN, service.localeForLanguage("unknown"));
+    }
+}

backend/src/test/java/com/printcalculator/service/request/CustomQuoteRequestAttachmentServiceTest.java

@@ -0,0 +1,163 @@
+package com.printcalculator.service.request;
+
+import com.printcalculator.entity.CustomQuoteRequest;
+import com.printcalculator.entity.CustomQuoteRequestAttachment;
+import com.printcalculator.repository.CustomQuoteRequestAttachmentRepository;
+import com.printcalculator.service.storage.ClamAVService;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.http.HttpStatus;
+import org.springframework.mock.web.MockMultipartFile;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.List;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyNoInteractions;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+class CustomQuoteRequestAttachmentServiceTest {
+
+    @Mock
+    private CustomQuoteRequestAttachmentRepository attachmentRepo;
+    @Mock
+    private ClamAVService clamAVService;
+
+    @InjectMocks
+    private CustomQuoteRequestAttachmentService service;
+
+    private UUID lastRequestIdForCleanup;
+
+    @AfterEach
+    void cleanStorageDirectory() {
+        if (lastRequestIdForCleanup == null) {
+            return;
+        }
+        Path requestDir = Paths.get("storage_requests", "quote-requests", lastRequestIdForCleanup.toString());
+        if (!Files.exists(requestDir)) {
+            return;
+        }
+        try (var walk = Files.walk(requestDir)) {
+            walk.sorted(Comparator.reverseOrder()).forEach(path -> {
+                try {
+                    Files.deleteIfExists(path);
+                } catch (IOException e) {
+                    throw new UncheckedIOException(e);
+                }
+            });
+        } catch (IOException e) {
+            throw new UncheckedIOException(e);
+        }
+    }
+
+    @Test
+    void storeAttachments_withNullFiles_shouldReturnZero() throws Exception {
+        CustomQuoteRequest request = buildRequest();
+
+        int count = service.storeAttachments(request, null);
+
+        assertEquals(0, count);
+        verifyNoInteractions(clamAVService, attachmentRepo);
+    }
+
+    @Test
+    void storeAttachments_withTooManyFiles_shouldThrowIOException() {
+        CustomQuoteRequest request = buildRequest();
+        List<MockMultipartFile> files = new ArrayList<>();
+        for (int i = 0; i < 16; i++) {
+            files.add(new MockMultipartFile("files", "file-" + i + ".stl", "model/stl", "solid".getBytes(StandardCharsets.UTF_8)));
+        }
+
+        IOException ex = assertThrows(
+                IOException.class,
+                () -> service.storeAttachments(request, new ArrayList<>(files))
+        );
+
+        assertTrue(ex.getMessage().contains("Too many files"));
+        verifyNoInteractions(clamAVService, attachmentRepo);
+    }
+
+    @Test
+    void storeAttachments_withCompressedFile_shouldThrowBadRequest() {
+        CustomQuoteRequest request = buildRequest();
+        MockMultipartFile file = new MockMultipartFile(
+                "files",
+                "archive.zip",
+                "application/zip",
+                "dummy".getBytes(StandardCharsets.UTF_8)
+        );
+
+        ResponseStatusException ex = assertThrows(
+                ResponseStatusException.class,
+                () -> service.storeAttachments(request, List.of(file))
+        );
+
+        assertEquals(HttpStatus.BAD_REQUEST, ex.getStatusCode());
+        verifyNoInteractions(clamAVService, attachmentRepo);
+    }
+
+    @Test
+    void storeAttachments_withValidFile_shouldScanPersistAndWriteOnDisk() throws Exception {
+        CustomQuoteRequest request = buildRequest();
+        lastRequestIdForCleanup = request.getId();
+
+        MockMultipartFile file = new MockMultipartFile(
+                "files",
+                "part.stl",
+                "model/stl",
+                "solid model".getBytes(StandardCharsets.UTF_8)
+        );
+
+        when(clamAVService.scan(any())).thenReturn(true);
+        when(attachmentRepo.save(any(CustomQuoteRequestAttachment.class))).thenAnswer(invocation -> {
+            CustomQuoteRequestAttachment attachment = invocation.getArgument(0);
+            if (attachment.getId() == null) {
+                attachment.setId(UUID.randomUUID());
+            }
+            return attachment;
+        });
+
+        int savedCount = service.storeAttachments(request, List.of(file));
+
+        assertEquals(1, savedCount);
+
+        ArgumentCaptor<CustomQuoteRequestAttachment> captor = ArgumentCaptor.forClass(CustomQuoteRequestAttachment.class);
+        verify(attachmentRepo, times(2)).save(captor.capture());
+        verify(clamAVService, times(1)).scan(any());
+
+        CustomQuoteRequestAttachment persisted = captor.getAllValues().get(1);
+        Path absolutePath = Paths.get("storage_requests").toAbsolutePath().normalize()
+                .resolve(persisted.getStoredRelativePath())
+                .normalize();
+
+        assertTrue(Files.exists(absolutePath));
+        assertEquals("solid model", Files.readString(absolutePath, StandardCharsets.UTF_8));
+    }
+
+    private CustomQuoteRequest buildRequest() {
+        CustomQuoteRequest request = new CustomQuoteRequest();
+        request.setId(UUID.randomUUID());
+        return request;
+    }
+}

backend/src/test/java/com/printcalculator/service/request/CustomQuoteRequestControllerServiceTest.java

@@ -0,0 +1,110 @@
+package com.printcalculator.service.request;
+
+import com.printcalculator.dto.QuoteRequestDto;
+import com.printcalculator.entity.CustomQuoteRequest;
+import com.printcalculator.repository.CustomQuoteRequestRepository;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.server.ResponseStatusException;
+import org.springframework.web.multipart.MultipartFile;
+
+import java.io.IOException;
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyNoInteractions;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+class CustomQuoteRequestControllerServiceTest {
+
+    @Mock
+    private CustomQuoteRequestRepository requestRepo;
+    @Mock
+    private CustomQuoteRequestAttachmentService attachmentService;
+    @Mock
+    private CustomQuoteRequestNotificationService notificationService;
+
+    @InjectMocks
+    private CustomQuoteRequestControllerService service;
+
+    @Test
+    void createCustomQuoteRequest_withMissingConsents_shouldThrowBadRequest() throws Exception {
+        QuoteRequestDto dto = buildRequest(false, true);
+
+        ResponseStatusException ex = assertThrows(
+                ResponseStatusException.class,
+                () -> service.createCustomQuoteRequest(dto, List.of())
+        );
+
+        assertEquals(HttpStatus.BAD_REQUEST, ex.getStatusCode());
+        verifyNoInteractions(requestRepo, attachmentService, notificationService);
+    }
+
+    @Test
+    void createCustomQuoteRequest_withValidPayload_shouldPersistAndDelegate() throws Exception {
+        UUID requestId = UUID.randomUUID();
+        QuoteRequestDto dto = buildRequest(true, true);
+        List<MultipartFile> files = List.of();
+
+        when(requestRepo.save(any(CustomQuoteRequest.class))).thenAnswer(invocation -> {
+            CustomQuoteRequest request = invocation.getArgument(0);
+            request.setId(requestId);
+            return request;
+        });
+        when(attachmentService.storeAttachments(any(CustomQuoteRequest.class), eq(files))).thenReturn(2);
+
+        CustomQuoteRequest saved = service.createCustomQuoteRequest(dto, files);
+
+        assertNotNull(saved);
+        assertEquals(requestId, saved.getId());
+        assertEquals("PENDING", saved.getStatus());
+        assertNotNull(saved.getCreatedAt());
+        assertNotNull(saved.getUpdatedAt());
+
+        verify(requestRepo).save(any(CustomQuoteRequest.class));
+        verify(attachmentService).storeAttachments(saved, files);
+        verify(notificationService).sendNotifications(saved, 2, "de-CH");
+    }
+
+    @Test
+    void getCustomQuoteRequest_shouldDelegateToRepository() {
+        UUID requestId = UUID.randomUUID();
+        CustomQuoteRequest request = new CustomQuoteRequest();
+        request.setId(requestId);
+        when(requestRepo.findById(requestId)).thenReturn(Optional.of(request));
+
+        Optional<CustomQuoteRequest> result = service.getCustomQuoteRequest(requestId);
+
+        assertEquals(Optional.of(request), result);
+        verify(requestRepo).findById(requestId);
+    }
+
+    private QuoteRequestDto buildRequest(boolean acceptTerms, boolean acceptPrivacy) {
+        QuoteRequestDto dto = new QuoteRequestDto();
+        dto.setRequestType("PRINT_SERVICE");
+        dto.setCustomerType("PRIVATE");
+        dto.setLanguage("de-CH");
+        dto.setEmail("customer@example.com");
+        dto.setPhone("+41910000000");
+        dto.setName("Mario Rossi");
+        dto.setCompanyName("3D Fab SA");
+        dto.setContactPerson("Mario Rossi");
+        dto.setMessage("Vorrei una quotazione.");
+        dto.setAcceptTerms(acceptTerms);
+        dto.setAcceptPrivacy(acceptPrivacy);
+        return dto;
+    }
+}

backend/src/test/java/com/printcalculator/service/request/CustomQuoteRequestNotificationServiceTest.java

@@ -0,0 +1,122 @@
+package com.printcalculator.service.request;
+
+import com.printcalculator.entity.CustomQuoteRequest;
+import com.printcalculator.service.email.EmailNotificationService;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.test.util.ReflectionTestUtils;
+
+import java.time.OffsetDateTime;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+@ExtendWith(MockitoExtension.class)
+class CustomQuoteRequestNotificationServiceTest {
+
+    @Mock
+    private EmailNotificationService emailNotificationService;
+
+    private ContactRequestLocalizationService localizationService;
+    private CustomQuoteRequestNotificationService service;
+
+    @BeforeEach
+    void setUp() {
+        localizationService = new ContactRequestLocalizationService();
+        service = new CustomQuoteRequestNotificationService(emailNotificationService, localizationService);
+    }
+
+    @Test
+    void sendNotifications_withAdminAndCustomerEnabled_shouldSendBothEmails() {
+        ReflectionTestUtils.setField(service, "contactRequestAdminMailEnabled", true);
+        ReflectionTestUtils.setField(service, "contactRequestAdminMailAddress", "admin@3d-fab.ch");
+        ReflectionTestUtils.setField(service, "contactRequestCustomerMailEnabled", true);
+
+        CustomQuoteRequest request = buildRequest();
+
+        service.sendNotifications(request, 3, "en-US");
+
+        @SuppressWarnings("unchecked")
+        ArgumentCaptor<Map<String, Object>> dataCaptor = (ArgumentCaptor<Map<String, Object>>) (ArgumentCaptor<?>) ArgumentCaptor.forClass(Map.class);
+        ArgumentCaptor<String> toCaptor = ArgumentCaptor.forClass(String.class);
+        ArgumentCaptor<String> subjectCaptor = ArgumentCaptor.forClass(String.class);
+        ArgumentCaptor<String> templateCaptor = ArgumentCaptor.forClass(String.class);
+
+        verify(emailNotificationService, times(2)).sendEmail(
+                toCaptor.capture(),
+                subjectCaptor.capture(),
+                templateCaptor.capture(),
+                dataCaptor.capture()
+        );
+
+        List<String> recipients = toCaptor.getAllValues();
+        assertTrue(recipients.contains("admin@3d-fab.ch"));
+        assertTrue(recipients.contains("customer@example.com"));
+
+        int customerIndex = recipients.indexOf("customer@example.com");
+        assertEquals("contact-request-customer", templateCaptor.getAllValues().get(customerIndex));
+        assertEquals("We received your contact request #" + request.getId() + " - 3D-Fab", subjectCaptor.getAllValues().get(customerIndex));
+        assertEquals("Date", dataCaptor.getAllValues().get(customerIndex).get("labelDate"));
+
+        int adminIndex = recipients.indexOf("admin@3d-fab.ch");
+        assertEquals("contact-request-admin", templateCaptor.getAllValues().get(adminIndex));
+        assertEquals(3, dataCaptor.getAllValues().get(adminIndex).get("attachmentsCount"));
+    }
+
+    @Test
+    void sendNotifications_withCustomerDisabled_shouldOnlySendAdminEmail() {
+        ReflectionTestUtils.setField(service, "contactRequestAdminMailEnabled", true);
+        ReflectionTestUtils.setField(service, "contactRequestAdminMailAddress", "admin@3d-fab.ch");
+        ReflectionTestUtils.setField(service, "contactRequestCustomerMailEnabled", false);
+
+        service.sendNotifications(buildRequest(), 1, "it");
+
+        verify(emailNotificationService, times(1)).sendEmail(
+                org.mockito.ArgumentMatchers.eq("admin@3d-fab.ch"),
+                org.mockito.ArgumentMatchers.anyString(),
+                org.mockito.ArgumentMatchers.eq("contact-request-admin"),
+                org.mockito.ArgumentMatchers.anyMap()
+        );
+    }
+
+    @Test
+    void sendNotifications_withMissingAdminAddressAndCustomerDisabled_shouldSendNothing() {
+        ReflectionTestUtils.setField(service, "contactRequestAdminMailEnabled", true);
+        ReflectionTestUtils.setField(service, "contactRequestAdminMailAddress", " ");
+        ReflectionTestUtils.setField(service, "contactRequestCustomerMailEnabled", false);
+
+        service.sendNotifications(buildRequest(), 1, "fr");
+
+        verify(emailNotificationService, never()).sendEmail(
+                org.mockito.ArgumentMatchers.anyString(),
+                org.mockito.ArgumentMatchers.anyString(),
+                org.mockito.ArgumentMatchers.anyString(),
+                org.mockito.ArgumentMatchers.anyMap()
+        );
+    }
+
+    private CustomQuoteRequest buildRequest() {
+        CustomQuoteRequest request = new CustomQuoteRequest();
+        request.setId(UUID.randomUUID());
+        request.setRequestType("PRINT_SERVICE");
+        request.setCustomerType("PRIVATE");
+        request.setName("Mario Rossi");
+        request.setCompanyName("3D Fab SA");
+        request.setContactPerson("Mario Rossi");
+        request.setEmail("customer@example.com");
+        request.setPhone("+41910000000");
+        request.setMessage("Vorrei una quotazione.");
+        request.setCreatedAt(OffsetDateTime.parse("2026-03-05T10:15:30+01:00"));
+        return request;
+    }
+}

frontend/src/app/features/admin/pages/admin-dashboard.component.html

@@ -193,17 +193,22 @@
             </p>
             <p class="item-meta">
               Qta: {{ item.quantity }} | Materiale:
-              {{ item.materialCode || "-" }} | Colore:
+              {{ getItemMaterialLabel(item) }} | Colore:
               <span
                 class="color-swatch"
-                *ngIf="isHexColor(item.colorCode)"
+                *ngIf="getItemColorHex(item) as colorHex"
-                [style.background-color]="item.colorCode"
+                [style.background-color]="colorHex"
               ></span>
-              <span>{{ item.colorCode || "-" }}</span>
+              <span>
+                {{ getItemColorLabel(item) }}
+                <ng-container *ngIf="getItemColorCodeSuffix(item) as colorCode">
+                  ({{ colorCode }})
+                </ng-container>
+              </span>
               | Nozzle: {{ item.nozzleDiameterMm ?? "-" }} mm | Layer:
               {{ item.layerHeightMm ?? "-" }} mm | Infill:
               {{ item.infillPercent ?? "-" }}% | Supporti:
-              {{ item.supportsEnabled ? "Sì" : "No" }}
+              {{ formatSupports(item.supportsEnabled) }}
               | Riga:
               {{ item.lineTotalChf | currency: "CHF" : "symbol" : "1.2-2" }}
             </p>
@@ -283,10 +288,11 @@
       <div class="file-color-row" *ngFor="let item of selectedOrder.items">
         <span class="filename">{{ item.originalFilename }}</span>
         <span class="file-color">
-          {{ item.materialCode || "-" }} | {{ item.nozzleDiameterMm ?? "-" }} mm
+          {{ getItemMaterialLabel(item) }} | Colore:
-          | {{ item.layerHeightMm ?? "-" }} mm | {{ item.infillPercent ?? "-" }}%
+          {{ getItemColorLabel(item) }} | {{ item.nozzleDiameterMm ?? "-" }} mm
-          | {{ item.infillPattern || "-" }} |
+          | {{ item.layerHeightMm ?? "-" }} mm |
-          {{ item.supportsEnabled ? "Supporti ON" : "Supporti OFF" }}
+          {{ item.infillPercent ?? "-" }}% | {{ item.infillPattern || "-" }} |
+          {{ formatSupportsState(item.supportsEnabled) }}
         </span>
       </div>
     </div>

frontend/src/app/features/admin/pages/admin-dashboard.component.ts

@@ -3,6 +3,7 @@ import { Component, inject, OnInit } from '@angular/core';
 import { FormsModule } from '@angular/forms';
 import {
   AdminOrder,
+  AdminOrderItem,
   AdminOrdersService,
 } from '../services/admin-orders.service';
 import { CopyOnClickDirective } from '../../../shared/directives/copy-on-click.directive';
@@ -273,6 +274,68 @@ export class AdminDashboardComponent implements OnInit {
     );
   }
 
+  getItemMaterialLabel(item: AdminOrderItem): string {
+    const variantName = (item.filamentVariantDisplayName || '').trim();
+    const materialCode = (item.materialCode || '').trim();
+    if (!variantName) {
+      return materialCode || '-';
+    }
+    if (!materialCode) {
+      return variantName;
+    }
+    const normalizedVariant = variantName.toLowerCase();
+    const normalizedCode = materialCode.toLowerCase();
+    return normalizedVariant.includes(normalizedCode)
+      ? variantName
+      : `${variantName} (${materialCode})`;
+  }
+
+  getItemColorLabel(item: AdminOrderItem): string {
+    const colorName = (item.filamentColorName || '').trim();
+    const colorCode = (item.colorCode || '').trim();
+    return colorName || colorCode || '-';
+  }
+
+  getItemColorHex(item: AdminOrderItem): string | null {
+    const variantHex = (item.filamentColorHex || '').trim();
+    if (this.isHexColor(variantHex)) {
+      return variantHex;
+    }
+    const code = (item.colorCode || '').trim();
+    if (this.isHexColor(code)) {
+      return code;
+    }
+    return null;
+  }
+
+  getItemColorCodeSuffix(item: AdminOrderItem): string | null {
+    const colorHex = this.getItemColorHex(item);
+    if (!colorHex) {
+      return null;
+    }
+    return colorHex === this.getItemColorLabel(item) ? null : colorHex;
+  }
+
+  formatSupports(value?: boolean): string {
+    if (value === true) {
+      return 'Sì';
+    }
+    if (value === false) {
+      return 'No';
+    }
+    return '-';
+  }
+
+  formatSupportsState(value?: boolean): string {
+    if (value === true) {
+      return 'Supporti ON';
+    }
+    if (value === false) {
+      return 'Supporti OFF';
+    }
+    return 'Supporti -';
+  }
+
   isSelected(orderId: string): boolean {
     return this.selectedOrder?.id === orderId;
   }

frontend/src/app/features/admin/pages/admin-sessions.component.html

@@ -149,7 +149,9 @@
                         {{ item.layerHeightMm ?? "-" }} mm |
                         {{ item.infillPercent ?? "-" }}% |
                         {{ item.infillPattern || "-" }} |
-                        {{ item.supportsEnabled ? "Supporti ON" : "Supporti OFF" }}
+                        {{
+                          item.supportsEnabled ? "Supporti ON" : "Supporti OFF"
+                        }}
                       </td>
                       <td>{{ item.status }}</td>
                       <td>{{ item.unitPriceChf | currency: "CHF" }}</td>

frontend/src/app/features/admin/services/admin-orders.service.ts

@@ -8,6 +8,10 @@ export interface AdminOrderItem {
   originalFilename: string;
   materialCode: string;
   colorCode: string;
+  filamentVariantId?: number;
+  filamentVariantDisplayName?: string;
+  filamentColorName?: string;
+  filamentColorHex?: string;
   quality?: string;
   nozzleDiameterMm?: number;
   layerHeightMm?: number;

frontend/src/app/features/calculator/calculator-page.component.ts

@@ -72,7 +72,10 @@ export class CalculatorPageComponent implements OnInit {
     Record<string, { differences: string[] }>
   >({});
   private baselinePrintSettings: TrackedPrintSettings | null = null;
-  private baselineItemSettingsByFileName = new Map<string, TrackedPrintSettings>();
+  private baselineItemSettingsByFileName = new Map<
+    string,
+    TrackedPrintSettings
+  >();
 
   @ViewChild('uploadForm') uploadForm!: UploadFormComponent;
   @ViewChild('resultCol') resultCol!: ElementRef;
@@ -200,6 +203,13 @@ export class CalculatorPageComponent implements OnInit {
           this.uploadForm.patchSettings(session);
 
           items.forEach((item, index) => {
+            // Preserve persisted quantities when restoring from session.
+            // Without this, setFiles() defaults every item back to 1.
+            this.uploadForm.updateItemQuantityByIndex(
+              index,
+              Number(item.quantity || 1),
+            );
+
             const tracked = this.toTrackedSettingsFromSessionItem(
               item,
               this.toTrackedSettingsFromSession(session),
@@ -528,7 +538,9 @@ export class CalculatorPageComponent implements OnInit {
     });
   }
 
-  private toTrackedSettingsFromRequest(req: QuoteRequest): TrackedPrintSettings {
+  private toTrackedSettingsFromRequest(
+    req: QuoteRequest,
+  ): TrackedPrintSettings {
     return {
       mode: req.mode,
       material: this.normalizeString(req.material || 'PLA'),
@@ -590,17 +602,17 @@ export class CalculatorPageComponent implements OnInit {
     item: any,
     fallback: TrackedPrintSettings,
   ): TrackedPrintSettings {
-    const layer = this.normalizeNumber(item?.layerHeightMm, fallback.layerHeight, 3);
+    const layer = this.normalizeNumber(
+      item?.layerHeightMm,
+      fallback.layerHeight,
+      3,
+    );
     return {
       mode: this.mode(),
       material: this.normalizeString(item?.materialCode || fallback.material),
       quality: this.normalizeString(
         item?.quality ||
-          (layer >= 0.24
+          (layer >= 0.24 ? 'draft' : layer <= 0.12 ? 'extra_fine' : 'standard'),
-            ? 'draft'
-            : layer <= 0.12
-              ? 'extra_fine'
-              : 'standard'),
       ),
       nozzleDiameter: this.normalizeNumber(
         item?.nozzleDiameterMm,
@@ -616,9 +628,7 @@ export class CalculatorPageComponent implements OnInit {
       infillPattern: this.normalizeString(
         item?.infillPattern || fallback.infillPattern,
       ),
-      supportEnabled: Boolean(
+      supportEnabled: Boolean(item?.supportsEnabled ?? fallback.supportEnabled),
-        item?.supportsEnabled ?? fallback.supportEnabled,
-      ),
     };
   }
 

frontend/src/app/features/calculator/components/quote-result/quote-result.component.html

@@ -1,17 +1,15 @@
 <app-card>
   <h3 class="title">{{ "CALC.RESULT" | translate }}</h3>
 
-  <!-- Summary Grid (NOW ON TOP) -->
+  <app-price-breakdown
-  <div class="result-grid">
+    [rows]="priceBreakdownRows()"
-    <app-summary-card
+    [total]="costBreakdown().total"
-      class="item full-width"
+    [currency]="result().currency"
-      [label]="'CALC.COST' | translate"
+    [totalSuffix]="'*'"
-      [large]="true"
+    [totalLabelKey]="'CHECKOUT.TOTAL'"
-      [highlight]="true"
+  ></app-price-breakdown>
-    >
-      {{ totals().price | currency: result().currency }}
-    </app-summary-card>
 
+  <div class="result-grid">
     <app-summary-card [label]="'CALC.TIME' | translate">
       {{ totals().hours }}h {{ totals().minutes }}m
     </app-summary-card>
@@ -22,18 +20,6 @@
   </div>
 
   <div class="setup-note">
-    <small>{{
-      "CALC.SETUP_NOTE"
-        | translate
-          : { cost: (result().setupCost | currency: result().currency) }
-    }}</small
-    ><br />
-    @if ((result().cadTotal || 0) > 0) {
-      <small class="shipping-note" style="color: #666">
-        Servizio CAD: {{ result().cadTotal | currency: result().currency }}
-      </small>
-      <br />
-    }
     <small class="shipping-note" style="color: #666">{{
       "CALC.SHIPPING_NOTE" | translate
     }}</small>
@@ -63,11 +49,11 @@
           <span class="file-details">
             {{ item.unitTime / 3600 | number: "1.1-1" }}h |
             {{ item.unitWeight | number: "1.0-0" }}g |
-            materiale: {{ item.material || "N/D" }}
+            {{ item.material || "N/D" }}
-            @if (getItemDifferenceLabel(item.fileName)) {
+            @if (getItemDifferenceLabel(item.fileName, item.material)) {
               |
               <small class="item-settings-diff">
-                {{ getItemDifferenceLabel(item.fileName) }}
+                {{ getItemDifferenceLabel(item.fileName, item.material) }}
               </small>
             }
           </span>
@@ -83,6 +69,7 @@
               [ngModel]="item.quantity"
               (ngModelChange)="updateQuantity(i, $event)"
               (blur)="flushQuantityUpdate(i)"
+              (keydown.enter)="flushQuantityUpdate(i)"
               class="qty-input"
             />
           </div>
@@ -110,7 +97,7 @@
 
   <div class="actions">
     <div class="actions-left">
-      <app-button variant="outline" (click)="consult.emit()">
+      <app-button variant="secondary" (click)="consult.emit()">
         {{ "QUOTE.CONSULT" | translate }}
       </app-button>
     </div>

frontend/src/app/features/calculator/components/quote-result/quote-result.component.scss

@@ -20,10 +20,11 @@
   display: flex;
   justify-content: space-between;
   align-items: center;
-  padding: var(--space-3);
+  padding: var(--space-3) var(--space-4);
-  background: var(--color-neutral-50);
+  background: var(--color-bg-card);
   border-radius: var(--radius-md);
   border: 1px solid var(--color-border);
+  box-shadow: 0 2px 6px rgba(10, 20, 30, 0.04);
 }
 
 .item-info {
@@ -121,9 +122,6 @@
     gap: var(--space-4);
   }
 }
-.full-width {
-  grid-column: span 2;
-}
 
 .setup-note {
   text-align: center;
@@ -149,6 +147,7 @@
 .actions-right {
   display: flex;
   align-items: center;
+  gap: var(--space-2);
 }
 
 .actions-right {

frontend/src/app/features/calculator/components/quote-result/quote-result.component.spec.ts

@@ -1,4 +1,5 @@
 import { ComponentFixture, TestBed } from '@angular/core/testing';
+import { HttpClientTestingModule } from '@angular/common/http/testing';
 import { TranslateModule } from '@ngx-translate/core';
 import { QuoteResultComponent } from './quote-result.component';
 import { QuoteResult } from '../../services/quote-estimator.service';
@@ -38,7 +39,11 @@ describe('QuoteResultComponent', () => {
 
   beforeEach(async () => {
     await TestBed.configureTestingModule({
-      imports: [QuoteResultComponent, TranslateModule.forRoot()],
+      imports: [
+        QuoteResultComponent,
+        TranslateModule.forRoot(),
+        HttpClientTestingModule,
+      ],
     }).compileComponents();
 
     fixture = TestBed.createComponent(QuoteResultComponent);

frontend/src/app/features/calculator/components/quote-result/quote-result.component.ts

@@ -1,6 +1,5 @@
 import {
   Component,
-  OnDestroy,
   input,
   output,
   signal,
@@ -13,6 +12,10 @@ import { TranslateModule } from '@ngx-translate/core';
 import { AppCardComponent } from '../../../../shared/components/app-card/app-card.component';
 import { AppButtonComponent } from '../../../../shared/components/app-button/app-button.component';
 import { SummaryCardComponent } from '../../../../shared/components/summary-card/summary-card.component';
+import {
+  PriceBreakdownComponent,
+  PriceBreakdownRow,
+} from '../../../../shared/components/price-breakdown/price-breakdown.component';
 import { QuoteResult, QuoteItem } from '../../services/quote-estimator.service';
 
 @Component({
@@ -25,14 +28,14 @@ import { QuoteResult, QuoteItem } from '../../services/quote-estimator.service';
     AppCardComponent,
     AppButtonComponent,
     SummaryCardComponent,
+    PriceBreakdownComponent,
   ],
   templateUrl: './quote-result.component.html',
   styleUrl: './quote-result.component.scss',
 })
-export class QuoteResultComponent implements OnDestroy {
+export class QuoteResultComponent {
   readonly maxInputQuantity = 500;
   readonly directOrderLimit = 100;
-  readonly quantityAutoRefreshMs = 2000;
 
   result = input.required<QuoteResult>();
   recalculationRequired = input<boolean>(false);
@@ -57,13 +60,10 @@ export class QuoteResultComponent implements OnDestroy {
   // Local mutable state for items to handle quantity changes
   items = signal<QuoteItem[]>([]);
   private lastSentQuantities = new Map<string, number>();
-  private quantityTimers = new Map<string, ReturnType<typeof setTimeout>>();
 
   constructor() {
     effect(
       () => {
-        this.clearAllQuantityTimers();
-
         // Initialize local items when result inputs change
         // We map to new objects to avoid mutating the input directly if it was a reference
         const nextItems = this.result().items.map((i) => ({ ...i }));
@@ -79,17 +79,12 @@ export class QuoteResultComponent implements OnDestroy {
     );
   }
 
-  ngOnDestroy(): void {
-    this.clearAllQuantityTimers();
-  }
-
   updateQuantity(index: number, newQty: number | string) {
     const normalizedQty = this.normalizeQuantity(newQty);
     if (normalizedQty === null) return;
 
     const item = this.items()[index];
     if (!item) return;
-    const key = item.id ?? item.fileName;
 
     this.items.update((current) => {
       const updated = [...current];
@@ -103,8 +98,6 @@ export class QuoteResultComponent implements OnDestroy {
       fileName: item.fileName,
       quantity: normalizedQty,
     });
-
-    this.scheduleQuantityRefresh(index, key);
   }
 
   flushQuantityUpdate(index: number): void {
@@ -112,7 +105,6 @@ export class QuoteResultComponent implements OnDestroy {
     if (!item) return;
 
     const key = item.id ?? item.fileName;
-    this.clearQuantityRefreshTimer(key);
 
     const normalizedQty = this.normalizeQuantity(item.quantity);
     if (normalizedQty === null) return;
@@ -134,17 +126,57 @@ export class QuoteResultComponent implements OnDestroy {
     this.items().some((item) => item.quantity > this.directOrderLimit),
   );
 
-  totals = computed(() => {
+  costBreakdown = computed(() => {
     const currentItems = this.items();
-    const setup = this.result().setupCost;
     const cad = this.result().cadTotal || 0;
 
-    let price = setup + cad;
+    let subtotal = cad;
+    currentItems.forEach((item) => {
+      subtotal += item.unitPrice * item.quantity;
+    });
+
+    const nozzleChange = Math.max(0, this.result().nozzleChangeCost || 0);
+    const baseSetupRaw =
+      this.result().baseSetupCost != null
+        ? this.result().baseSetupCost
+        : this.result().setupCost - nozzleChange;
+    const baseSetup = Math.max(0, baseSetupRaw || 0);
+    const total = subtotal + baseSetup + nozzleChange;
+
+    return {
+      subtotal: Math.round(subtotal * 100) / 100,
+      baseSetup: Math.round(baseSetup * 100) / 100,
+      nozzleChange: Math.round(nozzleChange * 100) / 100,
+      total: Math.round(total * 100) / 100,
+    };
+  });
+
+  priceBreakdownRows = computed<PriceBreakdownRow[]>(() => {
+    const breakdown = this.costBreakdown();
+
+    return [
+      {
+        labelKey: 'CHECKOUT.SUBTOTAL',
+        amount: breakdown.subtotal,
+      },
+      {
+        labelKey: 'CHECKOUT.SETUP_FEE',
+        amount: breakdown.baseSetup,
+      },
+      {
+        label: 'Cambio Ugello',
+        amount: breakdown.nozzleChange,
+        visible: breakdown.nozzleChange > 0,
+      },
+    ];
+  });
+
+  totals = computed(() => {
+    const currentItems = this.items();
     let time = 0;
     let weight = 0;
 
     currentItems.forEach((i) => {
-      price += i.unitPrice * i.quantity;
       time += i.unitTime * i.quantity;
       weight += i.unitWeight * i.quantity;
     });
@@ -153,7 +185,7 @@ export class QuoteResultComponent implements OnDestroy {
     const minutes = Math.ceil((time % 3600) / 60);
 
     return {
-      price: Math.round(price * 100) / 100,
+      price: this.costBreakdown().total,
       hours,
       minutes,
       weight: Math.ceil(weight),
@@ -168,35 +200,30 @@ export class QuoteResultComponent implements OnDestroy {
     return Math.min(qty, this.maxInputQuantity);
   }
 
-  private scheduleQuantityRefresh(index: number, key: string): void {
+  getItemDifferenceLabel(fileName: string, materialCode?: string): string {
-    this.clearQuantityRefreshTimer(key);
-    const timer = setTimeout(() => {
-      this.quantityTimers.delete(key);
-      this.flushQuantityUpdate(index);
-    }, this.quantityAutoRefreshMs);
-    this.quantityTimers.set(key, timer);
-  }
-
-  private clearQuantityRefreshTimer(key: string): void {
-    const timer = this.quantityTimers.get(key);
-    if (!timer) return;
-    clearTimeout(timer);
-    this.quantityTimers.delete(key);
-  }
-
-  private clearAllQuantityTimers(): void {
-    this.quantityTimers.forEach((timer) => clearTimeout(timer));
-    this.quantityTimers.clear();
-  }
-
-  getItemDifferenceLabel(fileName: string): string {
     const differences =
       this.itemSettingsDiffByFileName()[fileName]?.differences || [];
     if (differences.length === 0) return '';
 
-    const materialOnly = differences.find(
+    const normalizedMaterial = String(materialCode || '')
+      .trim()
+      .toLowerCase();
+
+    const filtered = differences.filter((entry) => {
+      const normalized = String(entry || '')
+        .trim()
+        .toLowerCase();
+      const isMaterialOnly = !normalized.includes(':');
+      return !(isMaterialOnly && normalized === normalizedMaterial);
+    });
+
+    if (filtered.length === 0) {
+      return '';
+    }
+
+    const materialOnly = filtered.find(
       (entry) => !entry.includes(':') && entry.trim().length > 0,
     );
-    return materialOnly || differences.join(' | ');
+    return materialOnly || filtered.join(' | ');
   }
 }

frontend/src/app/features/calculator/components/upload-form/upload-form.component.html

@@ -13,11 +13,9 @@
           >
           </app-stl-viewer>
         }
-        <!-- Close button removed as requested -->
       </div>
     }
 
-    <!-- Initial Dropzone (Visible only when no files) -->
     @if (items().length === 0) {
       <app-dropzone
         [label]="'CALC.UPLOAD_LABEL'"
@@ -29,7 +27,6 @@
       </app-dropzone>
     }
 
-    <!-- New File List with Details -->
     @if (items().length > 0) {
       <div class="items-grid">
         @for (item of items(); track item.file.name; let i = $index) {
@@ -52,7 +49,7 @@
                     type="number"
                     min="1"
                     [value]="item.quantity"
-                    (change)="updateItemQuantity(i, $event)"
+                    (input)="updateItemQuantity(i, $event)"
                     class="qty-input"
                     (click)="$event.stopPropagation()"
                   />
@@ -83,7 +80,6 @@
         }
       </div>
 
-      <!-- "Add Files" Button (Visible only when files exist) -->
       <div class="add-more-container">
         <input
           #additionalInput
@@ -111,39 +107,58 @@
         >.
       </p>
 
-      <label class="item-settings-checkbox item-settings-checkbox--top">
+      @if (mode() === "easy") {
-        <input
+        <div class="easy-global-controls">
-          type="checkbox"
+          <label class="easy-global-field">
-          [checked]="sameSettingsForAll()"
+            <span>{{ "CALC.MATERIAL" | translate }}</span>
-          (change)="onSameSettingsToggle($any($event.target).checked)"
+            <select formControlName="material">
-        />
+              @for (mat of materials(); track mat.value) {
-        <span>Tutti i file uguali (applica impostazioni a tutti)</span>
+                <option [value]="mat.value">{{ mat.label }}</option>
-      </label>
+              }
+            </select>
+          </label>
 
-      @if (sameSettingsForAll()) {
+          <label class="easy-global-field">
-        <div class="item-settings-panel">
+            <span>{{ "CALC.QUALITY" | translate }}</span>
-          <h4 class="item-settings-title">Impostazioni globali</h4>
+            <select formControlName="quality">
+              @for (quality of qualities(); track quality.value) {
+                <option [value]="quality.value">{{ quality.label }}</option>
+              }
+            </select>
+          </label>
+        </div>
+      } @else {
+        <div class="sync-settings">
+          <label class="sync-settings-toggle">
+            <input
+              type="checkbox"
+              [checked]="sameSettingsForAll()"
+              [disabled]="lockedSettings()"
+              (change)="onSameSettingsToggle($any($event.target).checked)"
+            />
+            <span class="sync-settings-copy">
+              <span class="sync-settings-title">
+                Stesse impostazioni per tutti i file
+              </span>
+              <span class="sync-settings-subtitle">Colore escluso</span>
+            </span>
+          </label>
+        </div>
 
-          <div class="item-settings-grid">
+        @if (sameSettingsForAll()) {
-            <label>
+          <div class="item-settings-panel">
-              {{ "CALC.MATERIAL" | translate }}
+            <h4 class="item-settings-title">Impostazioni globali</h4>
-              <select formControlName="material">
-                @for (mat of materials(); track mat.value) {
-                  <option [value]="mat.value">{{ mat.label }}</option>
-                }
-              </select>
-            </label>
 
-            @if (mode() === "easy") {
+            <div class="item-settings-grid">
               <label>
-                {{ "CALC.QUALITY" | translate }}
+                {{ "CALC.MATERIAL" | translate }}
-                <select formControlName="quality">
+                <select formControlName="material">
-                  @for (quality of qualities(); track quality.value) {
+                  @for (mat of materials(); track mat.value) {
-                    <option [value]="quality.value">{{ quality.label }}</option>
+                    <option [value]="mat.value">{{ mat.label }}</option>
                   }
                 </select>
               </label>
-            } @else {
+
               <label>
                 {{ "CALC.NOZZLE" | translate }}
                 <select formControlName="nozzleDiameter">
@@ -152,10 +167,8 @@
                   }
                 </select>
               </label>
-            }
+            </div>
-          </div>
 
-          @if (mode() === "advanced") {
             <div class="item-settings-grid">
               <label>
                 {{ "CALC.PATTERN" | translate }}
@@ -179,7 +192,12 @@
             <div class="item-settings-grid">
               <label>
                 {{ "CALC.INFILL" | translate }}
-                <input type="number" min="0" max="100" formControlName="infillDensity" />
+                <input
+                  type="number"
+                  min="0"
+                  max="100"
+                  formControlName="infillDensity"
+                />
               </label>
 
               <label class="item-settings-checkbox">
@@ -187,161 +205,77 @@
                 <span>{{ "CALC.SUPPORT" | translate }}</span>
               </label>
             </div>
-          }
-        </div>
-      } @else {
-        @if (getSelectedItem(); as selectedItem) {
-          <div class="item-settings-panel">
-            <h4 class="item-settings-title">
-              Impostazioni file: {{ selectedItem.file.name }}
-            </h4>
-
-          <div class="item-settings-grid">
-            <label>
-              {{ "CALC.MATERIAL" | translate }}
-              <select
-                [value]="selectedItem.material || form.get('material')?.value"
-                (change)="
-                  updateItemMaterial(getSelectedItemIndex(), $any($event.target).value)
-                "
-              >
-                @for (mat of materials(); track mat.value) {
-                  <option [value]="mat.value">{{ mat.label }}</option>
-                }
-              </select>
-            </label>
-
-            @if (mode() === "easy") {
-              <label>
-                {{ "CALC.QUALITY" | translate }}
-                <select
-                  [value]="selectedItem.quality || form.get('quality')?.value"
-                  (change)="
-                    updateSelectedItemStringField(
-                      'quality',
-                      $any($event.target).value
-                    )
-                  "
-                >
-                  @for (quality of qualities(); track quality.value) {
-                    <option [value]="quality.value">{{ quality.label }}</option>
-                  }
-                </select>
-              </label>
-            } @else {
-              <label>
-                {{ "CALC.NOZZLE" | translate }}
-                <select
-                  [value]="
-                    selectedItem.nozzleDiameter ?? form.get('nozzleDiameter')?.value
-                  "
-                  (change)="
-                    updateSelectedItemNumberField(
-                      'nozzleDiameter',
-                      +$any($event.target).value
-                    )
-                  "
-                >
-                  @for (n of nozzleDiameters(); track n.value) {
-                    <option [value]="n.value">{{ n.label }}</option>
-                  }
-                </select>
-              </label>
-            }
           </div>
-    @if (mode() === "easy") {
+        } @else {
-      <app-select
+          @if (getSelectedItem(); as selectedItem) {
-        formControlName="quality"
+            <div class="item-settings-panel">
-        [label]="'CALC.QUALITY' | translate"
+              <h4 class="item-settings-title">
-        [options]="qualities()"
+                Impostazioni file: {{ selectedItem.file.name }}
-      ></app-select>
+              </h4>
-    } @else {
-      <app-select
-        formControlName="nozzleDiameter"
-        [label]="'CALC.NOZZLE' | translate"
-        [options]="nozzleDiameters()"
-      ></app-select>
-    }
-  </div>
 
-  @if (items().length > 1) {
+              <div class="item-settings-grid">
-    <div class="checkbox-row sync-all-row">
+                <label>
-      <input type="checkbox" formControlName="syncAllItems" id="syncAllItems" />
+                  {{ "CALC.MATERIAL" | translate }}
-      <label for="syncAllItems">
+                  <select formControlName="material">
-        Uguale per tutti i pezzi
+                    @for (mat of materials(); track mat.value) {
-      </label>
+                      <option [value]="mat.value">{{ mat.label }}</option>
-    </div>
+                    }
-  }
+                  </select>
+                </label>
 
-          @if (mode() === "advanced") {
+                <label>
-            <div class="item-settings-grid">
+                  {{ "CALC.NOZZLE" | translate }}
-              <label>
+                  <select formControlName="nozzleDiameter">
-                {{ "CALC.PATTERN" | translate }}
+                    @for (n of nozzleDiameters(); track n.value) {
-                <select
+                      <option [value]="n.value">{{ n.label }}</option>
-                  [value]="selectedItem.infillPattern || form.get('infillPattern')?.value"
+                    }
-                  (change)="
+                  </select>
-                    updateSelectedItemStringField(
+                </label>
-                      'infillPattern',
+              </div>
-                      $any($event.target).value
-                    )
-                  "
-                >
-                  @for (p of infillPatterns(); track p.value) {
-                    <option [value]="p.value">{{ p.label }}</option>
-                  }
-                </select>
-              </label>
 
-              <label>
+              <div class="item-settings-grid">
-                {{ "CALC.LAYER_HEIGHT" | translate }}
+                <label>
-                <select
+                  {{ "CALC.PATTERN" | translate }}
-                  [value]="selectedItem.layerHeight ?? form.get('layerHeight')?.value"
+                  <select formControlName="infillPattern">
-                  (change)="
+                    @for (p of infillPatterns(); track p.value) {
-                    updateSelectedItemNumberField(
+                      <option [value]="p.value">{{ p.label }}</option>
-                      'layerHeight',
+                    }
-                      +$any($event.target).value
+                  </select>
-                    )
+                </label>
-                  "
-                >
-                  @for (l of layerHeights(); track l.value) {
-                    <option [value]="l.value">{{ l.label }}</option>
-                  }
-                </select>
-              </label>
-            </div>
 
-            <div class="item-settings-grid">
+                <label>
-              <label>
+                  {{ "CALC.LAYER_HEIGHT" | translate }}
-                {{ "CALC.INFILL" | translate }}
+                  <select formControlName="layerHeight">
-                <input
+                    @for (
-                  type="number"
+                      l of getLayerHeightOptionsForNozzle(
-                  min="0"
+                        form.get("nozzleDiameter")?.value
-                  max="100"
+                      );
-                  [value]="
+                      track l.value
-                    selectedItem.infillDensity ?? form.get('infillDensity')?.value
+                    ) {
-                  "
+                      <option [value]="l.value">{{ l.label }}</option>
-                  (change)="
+                    }
-                    updateSelectedItemNumberField(
+                  </select>
-                      'infillDensity',
+                </label>
-                      +$any($event.target).value
+              </div>
-                    )
-                  "
-                />
-              </label>
 
-              <label class="item-settings-checkbox">
+              <div class="item-settings-grid">
-                <input
+                <label>
-                  type="checkbox"
+                  {{ "CALC.INFILL" | translate }}
-                  [checked]="
+                  <input
-                    selectedItem.supportEnabled ?? form.get('supportEnabled')?.value
+                    type="number"
-                  "
+                    min="0"
-                  (change)="updateSelectedItemSupport($any($event.target).checked)"
+                    max="100"
-                />
+                    formControlName="infillDensity"
-                <span>{{ "CALC.SUPPORT" | translate }}</span>
+                  />
-              </label>
+                </label>
+
+                <label class="item-settings-checkbox">
+                  <input type="checkbox" formControlName="supportEnabled" />
+                  <span>{{ "CALC.SUPPORT" | translate }}</span>
+                </label>
+              </div>
             </div>
           }
-          </div>
         }
       }
     }
@@ -349,7 +283,6 @@
     @if (items().length === 0 && form.get("itemsTouched")?.value) {
       <div class="error-msg">{{ "CALC.ERR_FILE_REQUIRED" | translate }}</div>
     }
-
   </div>
 
   <app-input
@@ -359,7 +292,6 @@
   ></app-input>
 
   <div class="actions">
-    <!-- Progress Bar (Only when uploading i.e. progress < 100) -->
     @if (loading() && uploadProgress() < 100) {
       <div class="progress-container">
         <div class="progress-bar">

frontend/src/app/features/calculator/components/upload-form/upload-form.component.scss

@@ -2,8 +2,8 @@
   margin-bottom: var(--space-6);
 }
 .upload-privacy-note {
-  margin-top: var(--space-6);
+  margin-top: var(--space-4);
-  margin-bottom: 0;
+  margin-bottom: var(--space-1);
   font-size: 0.8rem;
   color: var(--color-text-muted);
   text-align: left;
@@ -35,48 +35,50 @@
 /* Grid Layout for Files */
 .items-grid {
   display: grid;
-  grid-template-columns: 1fr 1fr; /* Force 2 columns on mobile */
+  grid-template-columns: 1fr;
-  gap: var(--space-2); /* Tighten gap for mobile */
+  gap: var(--space-3);
   margin-top: var(--space-4);
   margin-bottom: var(--space-4);
 
   @media (min-width: 640px) {
+    grid-template-columns: 1fr 1fr;
     gap: var(--space-3);
   }
 }
 
 .file-card {
-  padding: var(--space-2); /* Reduced from space-3 */
+  padding: var(--space-3);
-  background: var(--color-neutral-100);
+  background: var(--color-bg-card);
   border: 1px solid var(--color-border);
   border-radius: var(--radius-md);
   transition: all 0.2s;
   cursor: pointer;
   display: flex;
   flex-direction: column;
-  gap: 4px; /* Reduced gap */
+  gap: var(--space-2);
-  position: relative; /* For absolute positioning of remove btn */
+  position: relative;
-  min-width: 0; /* Allow flex item to shrink below content size if needed */
+  min-width: 0;
 
   &:hover {
     border-color: var(--color-neutral-300);
+    box-shadow: 0 4px 10px rgba(10, 20, 30, 0.07);
   }
   &.active {
     border-color: var(--color-brand);
-    background: rgba(250, 207, 10, 0.05);
+    background: rgba(250, 207, 10, 0.08);
     box-shadow: 0 0 0 1px var(--color-brand);
   }
 }
 
 .card-header {
   overflow: hidden;
-  padding-right: 25px; /* Adjusted */
+  padding-right: 28px;
-  margin-bottom: 2px;
+  margin-bottom: 0;
 }
 
 .file-name {
-  font-weight: 500;
+  font-weight: 600;
-  font-size: 0.8rem; /* Smaller font */
+  font-size: 0.92rem;
   color: var(--color-text);
   display: block;
   white-space: nowrap;
@@ -92,47 +94,46 @@
 
 .card-controls {
   display: flex;
-  align-items: flex-end; /* Align bottom of input and color circle */
+  align-items: flex-end;
-  gap: 16px; /* Space between Qty and Color */
+  gap: var(--space-4);
   width: 100%;
 }
 
 .qty-group,
 .color-group {
   display: flex;
-  flex-direction: column; /* Stack label and input */
+  flex-direction: column;
   align-items: flex-start;
-  gap: 0px;
+  gap: 2px;
 
   label {
-    font-size: 0.6rem;
+    font-size: 0.72rem;
     color: var(--color-text-muted);
     text-transform: uppercase;
-    letter-spacing: 0.5px;
+    letter-spacing: 0.3px;
     font-weight: 600;
-    margin-bottom: 2px;
+    margin-bottom: 0;
   }
 }
 
 .color-group {
-  align-items: flex-start; /* Align label left */
+  align-items: flex-start;
-  /* margin-right removed */
 
-  /* Override margin in selector for this context */
   ::ng-deep .color-selector-container {
     margin-left: 0;
   }
 }
 
 .qty-input {
-  width: 36px; /* Slightly smaller */
+  width: 54px;
-  padding: 1px 2px;
+  padding: 4px 6px;
   border: 1px solid var(--color-border);
   border-radius: var(--radius-sm);
   text-align: center;
-  font-size: 0.85rem;
+  font-size: 0.95rem;
+  font-weight: 600;
   background: white;
-  height: 24px; /* Explicit height to match color circle somewhat */
+  height: 34px;
   &:focus {
     outline: none;
     border-color: var(--color-brand);
@@ -141,10 +142,10 @@
 
 .btn-remove {
   position: absolute;
-  top: 4px;
+  top: 6px;
-  right: 4px;
+  right: 6px;
-  width: 18px;
+  width: 20px;
-  height: 18px;
+  height: 20px;
   border-radius: 4px;
   border: none;
   background: transparent;
@@ -155,7 +156,7 @@
   align-items: center;
   justify-content: center;
   transition: all 0.2s;
-  font-size: 0.8rem;
+  font-size: 0.9rem;
 
   &:hover {
     background: var(--color-danger-100);
@@ -170,7 +171,7 @@
 
 .btn-add-more {
   width: 100%;
-  padding: var(--space-3);
+  padding: 0.75rem var(--space-3);
   background: var(--color-neutral-800);
   color: white;
   border: none;
@@ -193,6 +194,92 @@
   }
 }
 
+.easy-global-controls {
+  margin-top: var(--space-4);
+  margin-bottom: var(--space-1);
+  display: grid;
+  grid-template-columns: 1fr;
+  gap: var(--space-3);
+
+  @media (min-width: 640px) {
+    grid-template-columns: 1fr 1fr;
+  }
+}
+
+.easy-global-field {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-1);
+
+  span {
+    font-size: 0.82rem;
+    font-weight: 700;
+    letter-spacing: 0.02em;
+    text-transform: uppercase;
+    color: var(--color-text-muted);
+  }
+
+  select {
+    border: 1px solid var(--color-border);
+    border-radius: var(--radius-md);
+    padding: 0.55rem 0.75rem;
+    background: var(--color-bg-card);
+    font-size: 0.96rem;
+    font-weight: 600;
+    color: var(--color-text);
+
+    &:focus {
+      outline: none;
+      border-color: var(--color-brand);
+      box-shadow: 0 0 0 2px rgba(250, 207, 10, 0.25);
+    }
+  }
+}
+
+.sync-settings {
+  margin-top: var(--space-4);
+  margin-bottom: var(--space-4);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+  background: var(--color-neutral-50);
+  padding: var(--space-3);
+}
+
+.sync-settings-toggle {
+  display: flex;
+  align-items: flex-start;
+  gap: var(--space-3);
+  cursor: pointer;
+
+  input[type="checkbox"] {
+    width: 20px;
+    height: 20px;
+    margin-top: 2px;
+    accent-color: var(--color-brand);
+    flex-shrink: 0;
+  }
+}
+
+.sync-settings-copy {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+}
+
+.sync-settings-title {
+  font-size: 0.95rem;
+  font-weight: 700;
+  color: var(--color-text);
+  line-height: 1.2;
+}
+
+.sync-settings-subtitle {
+  font-size: 0.8rem;
+  font-weight: 500;
+  color: var(--color-text-muted);
+  line-height: 1.35;
+}
+
 .checkbox-row {
   display: flex;
   align-items: center;

frontend/src/app/features/calculator/services/quote-estimator.service.ts

@@ -51,6 +51,8 @@ export interface QuoteItem {
 export interface QuoteResult {
   sessionId?: string;
   items: QuoteItem[];
+  baseSetupCost?: number;
+  nozzleChangeCost?: number;
   setupCost: number;
   globalMachineCost: number;
   cadHours?: number;
@@ -127,16 +129,22 @@ export class QuoteEstimatorService {
 
   getOptions(): Observable<OptionsResponse> {
     const headers: any = {};
-    return this.http.get<OptionsResponse>(`${environment.apiUrl}/api/calculator/options`, {
+    return this.http.get<OptionsResponse>(
-      headers,
+      `${environment.apiUrl}/api/calculator/options`,
-    });
+      {
+        headers,
+      },
+    );
   }
 
   getQuoteSession(sessionId: string): Observable<any> {
     const headers: any = {};
-    return this.http.get(`${environment.apiUrl}/api/quote-sessions/${sessionId}`, {
+    return this.http.get(
-      headers,
+      `${environment.apiUrl}/api/quote-sessions/${sessionId}`,
-    });
+      {
+        headers,
+      },
+    );
   }
 
   updateLineItem(lineItemId: string, changes: any): Observable<any> {
@@ -175,10 +183,13 @@ export class QuoteEstimatorService {
 
   getOrderInvoice(orderId: string): Observable<Blob> {
     const headers: any = {};
-    return this.http.get(`${environment.apiUrl}/api/orders/${orderId}/invoice`, {
+    return this.http.get(
-      headers,
+      `${environment.apiUrl}/api/orders/${orderId}/invoice`,
-      responseType: 'blob',
+      {
-    });
+        headers,
+        responseType: 'blob',
+      },
+    );
   }
 
   getOrderConfirmation(orderId: string): Observable<Blob> {
@@ -226,7 +237,8 @@ export class QuoteEstimatorService {
 
             const emitProgress = () => {
               const avg = Math.round(
-                uploadProgress.reduce((sum, value) => sum + value, 0) / totalItems,
+                uploadProgress.reduce((sum, value) => sum + value, 0) /
+                  totalItems,
               );
               observer.next(avg);
             };
@@ -239,7 +251,9 @@ export class QuoteEstimatorService {
 
               const hasFailure = uploadResults.some((entry) => !entry.success);
               if (hasFailure) {
-                observer.error('One or more files failed during upload/analysis');
+                observer.error(
+                  'One or more files failed during upload/analysis',
+                );
                 return;
               }
 
@@ -370,9 +384,12 @@ export class QuoteEstimatorService {
     );
 
     const grandTotal = Number(sessionData?.grandTotalChf);
+    const effectiveSetupCost = Number(
+      sessionData?.setupCostChf ?? session?.setupCostChf ?? 0,
+    );
     const fallbackTotal =
       Number(sessionData?.itemsTotalChf || 0) +
-      Number(session?.setupCostChf || 0) +
+      effectiveSetupCost +
       Number(sessionData?.shippingCostChf || 0);
 
     return {
@@ -399,7 +416,11 @@ export class QuoteEstimatorService {
             ? Number(item.nozzleDiameterMm)
             : undefined,
       })),
-      setupCost: Number(session?.setupCostChf || 0),
+      baseSetupCost: Number(
+        sessionData?.baseSetupCostChf ?? session?.setupCostChf ?? 0,
+      ),
+      nozzleChangeCost: Number(sessionData?.nozzleChangeCostChf ?? 0),
+      setupCost: effectiveSetupCost,
       globalMachineCost: Number(sessionData?.globalMachineCostChf || 0),
       cadHours: Number(session?.cadHours || 0),
       cadTotal: Number(sessionData?.cadTotalChf || 0),
@@ -412,8 +433,13 @@ export class QuoteEstimatorService {
     };
   }
 
-  private buildSettingsPayload(request: QuoteRequest, item: QuoteRequestItem): any {
+  private buildSettingsPayload(
-    const normalizedQuality = this.normalizeQuality(item.quality || request.quality);
+    request: QuoteRequest,
+    item: QuoteRequestItem,
+  ): any {
+    const normalizedQuality = this.normalizeQuality(
+      item.quality || request.quality,
+    );
     const easyPreset =
       request.mode === 'easy'
         ? this.buildEasyModePreset(normalizedQuality)
@@ -421,13 +447,17 @@ export class QuoteEstimatorService {
 
     return {
       complexityMode: request.mode === 'easy' ? 'BASIC' : 'ADVANCED',
+      quantity: this.normalizeQuantity(item.quantity),
       material: String(item.material || request.material || 'PLA'),
       color: item.color || '#FFFFFF',
       filamentVariantId: item.filamentVariantId,
       quality: easyPreset ? easyPreset.quality : normalizedQuality,
       supportsEnabled: item.supportEnabled ?? request.supportEnabled ?? false,
       layerHeight:
-        easyPreset?.layerHeight ?? item.layerHeight ?? request.layerHeight ?? 0.2,
+        easyPreset?.layerHeight ??
+        item.layerHeight ??
+        request.layerHeight ??
+        0.2,
       infillDensity:
         easyPreset?.infillDensity ??
         item.infillDensity ??
@@ -446,8 +476,18 @@ export class QuoteEstimatorService {
     };
   }
 
+  private normalizeQuantity(value: number | undefined): number {
+    const numeric = Number(value);
+    if (!Number.isFinite(numeric) || numeric < 1) {
+      return 1;
+    }
+    return Math.floor(numeric);
+  }
+
   private normalizeQuality(value: string | undefined): string {
-    const normalized = String(value || 'standard').trim().toLowerCase();
+    const normalized = String(value || 'standard')
+      .trim()
+      .toLowerCase();
     if (normalized === 'high' || normalized === 'high_definition') {
       return 'extra_fine';
     }

frontend/src/app/features/checkout/checkout.component.html

@@ -249,17 +249,22 @@
                     {{ "CHECKOUT.MATERIAL" | translate }}:
                     {{ itemMaterial(item) }}
                   </span>
-                  <span
+                  <span class="item-color" *ngIf="itemColorLabel(item) !== '-'">
-                    *ngIf="item.colorCode"
+                    <span
-                    class="color-dot"
+                      class="color-dot"
-                    [style.background-color]="item.colorCode"
+                      [style.background-color]="itemColorSwatch(item)"
-                  ></span>
+                    ></span>
+                    <span class="color-name">{{ itemColorLabel(item) }}</span>
+                  </span>
                 </div>
                 <div class="item-specs-sub">
                   {{ item.printTimeSeconds / 3600 | number: "1.1-1" }}h |
                   {{ item.materialGrams | number: "1.0-0" }}g
                 </div>
-                <div class="item-preview" *ngIf="isCadSession() && isStlItem(item)">
+                <div
+                  class="item-preview"
+                  *ngIf="isCadSession() && isStlItem(item)"
+                >
                   <ng-container
                     *ngIf="previewFile(item) as itemPreview; else previewState"
                   >
@@ -318,24 +323,13 @@
             </div>
           </div>
 
-          <div class="summary-totals" *ngIf="quoteSession() as session">
+          <app-price-breakdown
-            <div class="total-row">
+            *ngIf="quoteSession() as session"
-              <span>{{ "CHECKOUT.SUBTOTAL" | translate }}</span>
+            [rows]="checkoutPriceBreakdownRows(session)"
-              <span>{{ session.itemsTotalChf | currency: "CHF" }}</span>
+            [total]="session.grandTotalChf || 0"
-            </div>
+            [currency]="'CHF'"
-            <div class="total-row">
+            [totalLabelKey]="'CHECKOUT.TOTAL'"
-              <span>{{ "CHECKOUT.SETUP_FEE" | translate }}</span>
+          ></app-price-breakdown>
-              <span>{{ session.session.setupCostChf | currency: "CHF" }}</span>
-            </div>
-            <div class="total-row">
-              <span>{{ "CHECKOUT.SHIPPING" | translate }}</span>
-              <span>{{ session.shippingCostChf | currency: "CHF" }}</span>
-            </div>
-            <div class="grand-total">
-              <span>{{ "CHECKOUT.TOTAL" | translate }}</span>
-              <span>{{ session.grandTotalChf | currency: "CHF" }}</span>
-            </div>
-          </div>
         </app-card>
       </div>
     </div>

frontend/src/app/features/checkout/checkout.component.scss

@@ -230,12 +230,24 @@ app-toggle-selector.user-type-selector-compact {
       font-size: 0.85rem;
       color: var(--color-text-muted);
 
+      .item-color {
+        display: inline-flex;
+        align-items: center;
+        gap: 6px;
+      }
+
       .color-dot {
         width: 14px;
         height: 14px;
         border-radius: 50%;
         display: inline-block;
         border: 1px solid var(--color-border);
+        box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35);
+      }
+
+      .color-name {
+        font-weight: 500;
+        color: var(--color-text-muted);
       }
     }
 
@@ -343,32 +355,6 @@ app-toggle-selector.user-type-selector-compact {
   padding-right: var(--space-3);
 }
 
-.summary-totals {
-  background: var(--color-neutral-100);
-  padding: var(--space-4);
-  border-radius: var(--radius-md);
-  margin-top: var(--space-6);
-
-  .total-row {
-    display: flex;
-    justify-content: space-between;
-    margin-bottom: var(--space-2);
-    font-size: 0.95rem;
-    color: var(--color-text);
-  }
-
-  .grand-total {
-    display: flex;
-    justify-content: space-between;
-    color: var(--color-text);
-    font-weight: 700;
-    font-size: 1.5rem;
-    margin-top: var(--space-4);
-    padding-top: var(--space-4);
-    border-top: 2px solid var(--color-border);
-  }
-}
-
 .actions {
   margin-top: var(--space-8);
 

frontend/src/app/features/checkout/checkout.component.ts

@@ -16,8 +16,13 @@ import {
   AppToggleSelectorComponent,
   ToggleOption,
 } from '../../shared/components/app-toggle-selector/app-toggle-selector.component';
+import {
+  PriceBreakdownComponent,
+  PriceBreakdownRow,
+} from '../../shared/components/price-breakdown/price-breakdown.component';
 import { LanguageService } from '../../core/services/language.service';
 import { StlViewerComponent } from '../../shared/components/stl-viewer/stl-viewer.component';
+import { getColorHex } from '../../core/constants/colors.const';
 
 @Component({
   selector: 'app-checkout',
@@ -30,6 +35,7 @@ import { StlViewerComponent } from '../../shared/components/stl-viewer/stl-viewe
     AppButtonComponent,
     AppCardComponent,
     AppToggleSelectorComponent,
+    PriceBreakdownComponent,
     StlViewerComponent,
   ],
   templateUrl: './checkout.component.html',
@@ -55,6 +61,8 @@ export class CheckoutComponent implements OnInit {
   selectedPreviewFile = signal<File | null>(null);
   selectedPreviewName = signal('');
   selectedPreviewColor = signal('#c9ced6');
+  private variantHexById = new Map<number, string>();
+  private variantHexByColorName = new Map<string, string>();
 
   userTypeOptions: ToggleOption[] = [
     { label: 'CONTACT.TYPE_PRIVATE', value: 'PRIVATE' },
@@ -128,6 +136,8 @@ export class CheckoutComponent implements OnInit {
   }
 
   ngOnInit(): void {
+    this.loadMaterialColorPalette();
+
     this.route.queryParams.subscribe((params) => {
       this.sessionId = params['session'];
       if (!this.sessionId) {
@@ -192,6 +202,29 @@ export class CheckoutComponent implements OnInit {
     return this.quoteSession()?.cadTotalChf ?? 0;
   }
 
+  checkoutPriceBreakdownRows(session: any): PriceBreakdownRow[] {
+    return [
+      {
+        labelKey: 'CHECKOUT.SUBTOTAL',
+        amount: session?.itemsTotalChf ?? 0,
+      },
+      {
+        labelKey: 'CHECKOUT.SETUP_FEE',
+        amount:
+          session?.baseSetupCostChf ?? session?.session?.setupCostChf ?? 0,
+      },
+      {
+        label: 'Cambio Ugello',
+        amount: session?.nozzleChangeCostChf ?? 0,
+        visible: (session?.nozzleChangeCostChf ?? 0) > 0,
+      },
+      {
+        labelKey: 'CHECKOUT.SHIPPING',
+        amount: session?.shippingCostChf ?? 0,
+      },
+    ];
+  }
+
   itemMaterial(item: any): string {
     return String(
       item?.materialCode ?? this.quoteSession()?.session?.materialCode ?? '-',
@@ -212,8 +245,40 @@ export class CheckoutComponent implements OnInit {
   }
 
   previewColor(item: any): string {
+    return this.itemColorSwatch(item);
+  }
+
+  itemColorLabel(item: any): string {
     const raw = String(item?.colorCode ?? '').trim();
-    return raw || '#c9ced6';
+    return raw || '-';
+  }
+
+  itemColorSwatch(item: any): string {
+    const variantId = Number(item?.filamentVariantId);
+    if (Number.isFinite(variantId) && this.variantHexById.has(variantId)) {
+      return this.variantHexById.get(variantId)!;
+    }
+
+    const raw = String(item?.colorCode ?? '').trim();
+    if (!raw) {
+      return '#c9ced6';
+    }
+
+    if (this.isHexColor(raw)) {
+      return raw;
+    }
+
+    const byName = this.variantHexByColorName.get(raw.toLowerCase());
+    if (byName) {
+      return byName;
+    }
+
+    const fallback = getColorHex(raw);
+    if (fallback && fallback !== '#facf0a') {
+      return fallback;
+    }
+
+    return '#c9ced6';
   }
 
   isPreviewLoading(item: any): boolean {
@@ -250,6 +315,41 @@ export class CheckoutComponent implements OnInit {
     this.selectedPreviewColor.set('#c9ced6');
   }
 
+  private loadMaterialColorPalette(): void {
+    this.quoteService.getOptions().subscribe({
+      next: (options) => {
+        this.variantHexById.clear();
+        this.variantHexByColorName.clear();
+
+        for (const material of options?.materials || []) {
+          for (const variant of material?.variants || []) {
+            const variantId = Number(variant?.id);
+            const colorHex = String(variant?.hexColor || '').trim();
+            const colorName = String(variant?.colorName || '').trim();
+
+            if (Number.isFinite(variantId) && colorHex) {
+              this.variantHexById.set(variantId, colorHex);
+            }
+            if (colorName && colorHex) {
+              this.variantHexByColorName.set(colorName.toLowerCase(), colorHex);
+            }
+          }
+        }
+      },
+      error: () => {
+        this.variantHexById.clear();
+        this.variantHexByColorName.clear();
+      },
+    });
+  }
+
+  private isHexColor(value?: string): boolean {
+    return (
+      typeof value === 'string' &&
+      /^#([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$/.test(value)
+    );
+  }
+
   private loadStlPreviews(session: any): void {
     if (
       !this.sessionId ||

frontend/src/app/features/order/order.component.html

@@ -193,28 +193,12 @@
               <p class="order-id">#{{ getDisplayOrderNumber(o) }}</p>
             </div>
 
-            <div class="summary-totals">
+            <app-price-breakdown
-              <div class="total-row">
+              [rows]="orderPriceBreakdownRows(o)"
-                <span>{{ "PAYMENT.SUBTOTAL" | translate }}</span>
+              [total]="o.totalChf || 0"
-                <span>{{ o.subtotalChf | currency: "CHF" }}</span>
+              [currency]="'CHF'"
-              </div>
+              [totalLabelKey]="'PAYMENT.TOTAL'"
-              <div class="total-row" *ngIf="o.cadTotalChf > 0">
+            ></app-price-breakdown>
-                <span>Servizio CAD ({{ o.cadHours || 0 }}h)</span>
-                <span>{{ o.cadTotalChf | currency: "CHF" }}</span>
-              </div>
-              <div class="total-row">
-                <span>{{ "PAYMENT.SHIPPING" | translate }}</span>
-                <span>{{ o.shippingCostChf | currency: "CHF" }}</span>
-              </div>
-              <div class="total-row">
-                <span>{{ "PAYMENT.SETUP_FEE" | translate }}</span>
-                <span>{{ o.setupCostChf | currency: "CHF" }}</span>
-              </div>
-              <div class="grand-total-row">
-                <span>{{ "PAYMENT.TOTAL" | translate }}</span>
-                <span>{{ o.totalChf | currency: "CHF" }}</span>
-              </div>
-            </div>
           </app-card>
         </div>
       </div>

frontend/src/app/features/order/order.component.scss

@@ -184,31 +184,6 @@
   top: var(--space-6);
 }
 
-.summary-totals {
-  background: var(--color-neutral-100);
-  padding: var(--space-6);
-  border-radius: var(--radius-md);
-
-  .total-row {
-    display: flex;
-    justify-content: space-between;
-    margin-bottom: var(--space-2);
-    font-size: 0.95rem;
-    color: var(--color-text-muted);
-  }
-
-  .grand-total-row {
-    display: flex;
-    justify-content: space-between;
-    color: var(--color-text);
-    font-weight: 700;
-    font-size: 1.5rem;
-    margin-top: var(--space-4);
-    padding-top: var(--space-4);
-    border-top: 2px solid var(--color-border);
-  }
-}
-
 .actions {
   margin-top: var(--space-8);
 }

frontend/src/app/features/order/order.component.ts

@@ -6,6 +6,10 @@ import { AppCardComponent } from '../../shared/components/app-card/app-card.comp
 import { QuoteEstimatorService } from '../calculator/services/quote-estimator.service';
 import { TranslateModule, TranslateService } from '@ngx-translate/core';
 import { environment } from '../../../environments/environment';
+import {
+  PriceBreakdownComponent,
+  PriceBreakdownRow,
+} from '../../shared/components/price-breakdown/price-breakdown.component';
 
 @Component({
   selector: 'app-order',
@@ -15,6 +19,7 @@ import { environment } from '../../../environments/environment';
     AppButtonComponent,
     AppCardComponent,
     TranslateModule,
+    PriceBreakdownComponent,
   ],
   templateUrl: './order.component.html',
   styleUrl: './order.component.scss',
@@ -171,6 +176,28 @@ export class OrderComponent implements OnInit {
     return this.translate.instant('ORDER.NOT_AVAILABLE');
   }
 
+  orderPriceBreakdownRows(order: any): PriceBreakdownRow[] {
+    return [
+      {
+        labelKey: 'PAYMENT.SUBTOTAL',
+        amount: order?.subtotalChf ?? 0,
+      },
+      {
+        label: `Servizio CAD (${order?.cadHours || 0}h)`,
+        amount: order?.cadTotalChf ?? 0,
+        visible: (order?.cadTotalChf ?? 0) > 0,
+      },
+      {
+        labelKey: 'PAYMENT.SHIPPING',
+        amount: order?.shippingCostChf ?? 0,
+      },
+      {
+        labelKey: 'PAYMENT.SETUP_FEE',
+        amount: order?.setupCostChf ?? 0,
+      },
+    ];
+  }
+
   private extractOrderNumber(orderId: string): string {
     return orderId.split('-')[0];
   }

frontend/src/app/shared/components/price-breakdown/price-breakdown.component.html

@@ -0,0 +1,25 @@
+<div class="price-breakdown">
+  <div class="price-row" *ngFor="let row of visibleRows()">
+    <span>
+      <ng-container *ngIf="row.label; else translatedRowLabel">
+        {{ row.label }}
+      </ng-container>
+      <ng-template #translatedRowLabel>
+        {{ row.labelKey ? (row.labelKey | translate) : "" }}
+      </ng-template>
+    </span>
+    <span>{{ row.amount | currency: currency() }}</span>
+  </div>
+
+  <div class="price-total">
+    <span>
+      <ng-container *ngIf="totalLabel(); else translatedTotalLabel">
+        {{ totalLabel() }}
+      </ng-container>
+      <ng-template #translatedTotalLabel>
+        {{ totalLabelKey() ? (totalLabelKey() | translate) : "" }}
+      </ng-template>
+    </span>
+    <span>{{ total() | currency: currency() }}{{ totalSuffix() }}</span>
+  </div>
+</div>

frontend/src/app/shared/components/price-breakdown/price-breakdown.component.scss

@@ -0,0 +1,31 @@
+.price-breakdown {
+  margin-top: var(--space-2);
+  margin-bottom: var(--space-4);
+  padding: var(--space-4);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+  background: var(--color-neutral-100);
+}
+
+.price-row,
+.price-total {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  gap: var(--space-3);
+}
+
+.price-row {
+  color: var(--color-text);
+  font-size: 0.95rem;
+  margin-bottom: var(--space-2);
+}
+
+.price-total {
+  margin-top: var(--space-3);
+  padding-top: var(--space-3);
+  border-top: 2px solid var(--color-border);
+  font-size: 1.2rem;
+  font-weight: 700;
+  color: var(--color-text);
+}

frontend/src/app/shared/components/price-breakdown/price-breakdown.component.ts

@@ -0,0 +1,30 @@
+import { CommonModule } from '@angular/common';
+import { Component, computed, input } from '@angular/core';
+import { TranslateModule } from '@ngx-translate/core';
+
+export interface PriceBreakdownRow {
+  label?: string;
+  labelKey?: string;
+  amount: number;
+  visible?: boolean;
+}
+
+@Component({
+  selector: 'app-price-breakdown',
+  standalone: true,
+  imports: [CommonModule, TranslateModule],
+  templateUrl: './price-breakdown.component.html',
+  styleUrl: './price-breakdown.component.scss',
+})
+export class PriceBreakdownComponent {
+  rows = input<PriceBreakdownRow[]>([]);
+  total = input.required<number>();
+  currency = input<string>('CHF');
+  totalSuffix = input<string>('');
+  totalLabel = input<string>('');
+  totalLabelKey = input<string>('');
+
+  visibleRows = computed(() =>
+    this.rows().filter((row) => row.visible === undefined || row.visible),
+  );
+}

frontend/src/assets/i18n/de.json

@@ -90,7 +90,7 @@
     "PROCESSING": "Verarbeitung...",
     "NOTES_PLACEHOLDER": "Spezifische Anweisungen...",
     "SETUP_NOTE": "* Beinhaltet {{cost}} als Einrichtungskosten",
-    "SHIPPING_NOTE": "** Versandkosten ausgeschlossen, werden im nächsten Schritt berechnet",
+    "SHIPPING_NOTE": "* Versandkosten ausgeschlossen, werden im nächsten Schritt berechnet",
     "ERROR_ZERO_PRICE": "Bei der Berechnung ist etwas schiefgelaufen. Versuche ein anderes Format oder kontaktiere uns direkt über \"Beratung anfragen\".",
     "ZERO_RESULT_TITLE": "Ungültiges Ergebnis",
     "ZERO_RESULT_HELP": "Die Berechnung hat ungültige Werte (0) geliefert. Versuche ein anderes Dateiformat oder kontaktiere uns direkt über \"Beratung anfragen\"."

frontend/src/assets/i18n/en.json

@@ -90,7 +90,7 @@
     "PROCESSING": "Processing...",
     "NOTES_PLACEHOLDER": "Specific instructions...",
     "SETUP_NOTE": "* Includes {{cost}} as setup cost",
-    "SHIPPING_NOTE": "** Shipping costs excluded, calculated at the next step",
+    "SHIPPING_NOTE": "* Shipping costs excluded, calculated at the next step",
     "ERROR_ZERO_PRICE": "Something went wrong during the calculation. Try another format or contact us directly via Request Consultation.",
     "ZERO_RESULT_TITLE": "Invalid Result",
     "ZERO_RESULT_HELP": "The calculation returned invalid zero values. Try another file format or contact us directly via Request Consultation."

frontend/src/assets/i18n/fr.json

@@ -110,7 +110,7 @@
     "PROCESSING": "Traitement...",
     "NOTES_PLACEHOLDER": "Instructions spécifiques...",
     "SETUP_NOTE": "* Inclut {{cost}} comme coût de setup",
-    "SHIPPING_NOTE": "** Frais d'expédition exclus, calculés à l'étape suivante",
+    "SHIPPING_NOTE": "* Frais d'expédition exclus, calculés à l'étape suivante",
     "STEP_WARNING": "La visualisation 3D n'est pas compatible avec les fichiers STEP et 3MF",
     "REMOVE_FILE": "Supprimer le fichier",
     "FALLBACK_MATERIAL": "PLA (fallback)",

frontend/src/assets/i18n/it.json

@@ -110,7 +110,7 @@
     "PROCESSING": "Elaborazione...",
     "NOTES_PLACEHOLDER": "Istruzioni specifiche...",
     "SETUP_NOTE": "* Include {{cost}} come costo di setup",
-    "SHIPPING_NOTE": "** Costi di spedizione esclusi, calcolati al passaggio successivo",
+    "SHIPPING_NOTE": "* Costi di spedizione esclusi, calcolati al passaggio successivo",
     "STEP_WARNING": "La visualizzazione 3D non è compatibile con i file step e 3mf",
     "REMOVE_FILE": "Rimuovi file",
     "FALLBACK_MATERIAL": "PLA (fallback)",