feat(front-end): sitemap update

2026-03-11 15:17:19 +01:00
parent d1e7e7eaca
commit f9414b2db7
6 changed files with 558 additions and 153 deletions
--- a/backend/src/main/java/com/printcalculator/controller/SitemapController.java
+++ b/backend/src/main/java/com/printcalculator/controller/SitemapController.java
@@ -0,0 +1,37 @@
+package com.printcalculator.controller;
+
+import com.printcalculator.service.shop.ShopSitemapService;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.CacheControl;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.time.Duration;
+
+@RestController
+public class SitemapController {
+    private final ShopSitemapService shopSitemapService;
+    private final long cacheSeconds;
+
+    public SitemapController(
+            ShopSitemapService shopSitemapService,
+            @Value("${app.sitemap.shop.cache-seconds:3600}") long cacheSeconds
+    ) {
+        this.shopSitemapService = shopSitemapService;
+        this.cacheSeconds = Math.max(cacheSeconds, 0L);
+    }
+
+    @GetMapping(value = "/api/sitemap-shop.xml", produces = MediaType.APPLICATION_XML_VALUE)
+    public ResponseEntity<String> getShopSitemap() {
+        CacheControl cacheControl = cacheSeconds > 0
+                ? CacheControl.maxAge(Duration.ofSeconds(cacheSeconds)).cachePublic()
+                : CacheControl.noCache();
+
+        return ResponseEntity.ok()
+                .contentType(MediaType.parseMediaType("application/xml;charset=UTF-8"))
+                .cacheControl(cacheControl)
+                .body(shopSitemapService.getShopSitemapXml());
+    }
+}
--- a/backend/src/main/java/com/printcalculator/service/shop/ShopSitemapService.java
+++ b/backend/src/main/java/com/printcalculator/service/shop/ShopSitemapService.java
@@ -0,0 +1,242 @@
+package com.printcalculator.service.shop;
+
+import com.printcalculator.entity.ShopCategory;
+import com.printcalculator.entity.ShopProduct;
+import com.printcalculator.repository.ShopCategoryRepository;
+import com.printcalculator.repository.ShopProductRepository;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+import java.text.Normalizer;
+import java.time.Clock;
+import java.time.Duration;
+import java.time.Instant;
+import java.time.OffsetDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.LinkedHashMap;
+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;
+
+@Service
+@Transactional(readOnly = true)
+public class ShopSitemapService {
+    private static final List<String> SUPPORTED_LANGUAGES = ShopProduct.SUPPORTED_LANGUAGES;
+    private static final String DEFAULT_LANGUAGE = "it";
+    private static final DateTimeFormatter LASTMOD_FORMATTER = DateTimeFormatter.ISO_OFFSET_DATE_TIME;
+
+    private final ShopCategoryRepository shopCategoryRepository;
+    private final ShopProductRepository shopProductRepository;
+    private final String frontendBaseUrl;
+    private final Duration cacheTtl;
+    private final Clock clock;
+
+    private volatile CachedSitemap cachedSitemap;
+
+    public ShopSitemapService(ShopCategoryRepository shopCategoryRepository,
+                              ShopProductRepository shopProductRepository,
+                              @Value("${app.frontend.base-url:http://localhost:4200}") String frontendBaseUrl,
+                              @Value("${app.sitemap.shop.cache-seconds:900}") long cacheSeconds) {
+        this(shopCategoryRepository, shopProductRepository, frontendBaseUrl, cacheSeconds, Clock.systemUTC());
+    }
+
+    ShopSitemapService(ShopCategoryRepository shopCategoryRepository,
+                       ShopProductRepository shopProductRepository,
+                       String frontendBaseUrl,
+                       long cacheSeconds,
+                       Clock clock) {
+        this.shopCategoryRepository = shopCategoryRepository;
+        this.shopProductRepository = shopProductRepository;
+        this.frontendBaseUrl = normalizeBaseUrl(frontendBaseUrl);
+        this.cacheTtl = cacheSeconds > 0 ? Duration.ofSeconds(cacheSeconds) : Duration.ZERO;
+        this.clock = clock;
+    }
+
+    public String getShopSitemapXml() {
+        Instant now = Instant.now(clock);
+        CachedSitemap current = cachedSitemap;
+        if (current != null && now.isBefore(current.expiresAt())) {
+            return current.xml();
+        }
+
+        synchronized (this) {
+            current = cachedSitemap;
+            now = Instant.now(clock);
+            if (current != null && now.isBefore(current.expiresAt())) {
+                return current.xml();
+            }
+
+            String xml = buildSitemapXml();
+            Instant expiresAt = cacheTtl.isZero() ? now : now.plus(cacheTtl);
+            cachedSitemap = new CachedSitemap(xml, expiresAt);
+            return xml;
+        }
+    }
+
+    private String buildSitemapXml() {
+        List<ShopCategory> activeCategories = shopCategoryRepository.findAllByIsActiveTrueOrderBySortOrderAscNameAsc();
+        Set<UUID> activeCategoryIds = activeCategories.stream()
+                .map(ShopCategory::getId)
+                .collect(Collectors.toSet());
+
+        List<ShopProduct> activeProducts = shopProductRepository.findAllByIsActiveTrueOrderByIsFeaturedDescSortOrderAscNameAsc();
+
+        StringBuilder xml = new StringBuilder(16_384);
+        xml.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
+        xml.append("<urlset xmlns=\"http://www.sitemaps.org/schemas/sitemap/0.9\" ");
+        xml.append("xmlns:xhtml=\"http://www.w3.org/1999/xhtml\">\n");
+
+        appendCategoryUrls(xml, activeCategories);
+        appendProductUrls(xml, activeProducts, activeCategoryIds);
+
+        xml.append("</urlset>\n");
+        return xml.toString();
+    }
+
+    private void appendCategoryUrls(StringBuilder xml, List<ShopCategory> categories) {
+        for (ShopCategory category : categories) {
+            if (!Boolean.TRUE.equals(category.getIndexable())) {
+                continue;
+            }
+
+            String encodedSlug = pathEncodeSegment(category.getSlug());
+            Map<String, String> hrefByLanguage = new LinkedHashMap<>();
+            for (String language : SUPPORTED_LANGUAGES) {
+                hrefByLanguage.put(language, frontendBaseUrl + "/" + language + "/shop/" + encodedSlug);
+            }
+
+            appendUrlEntry(xml, hrefByLanguage, category.getUpdatedAt());
+        }
+    }
+
+    private void appendProductUrls(StringBuilder xml,
+                                   List<ShopProduct> products,
+                                   Set<UUID> activeCategoryIds) {
+        for (ShopProduct product : products) {
+            if (!Boolean.TRUE.equals(product.getIndexable())) {
+                continue;
+            }
+            if (product.getCategory() == null || !activeCategoryIds.contains(product.getCategory().getId())) {
+                continue;
+            }
+
+            Map<String, String> hrefByLanguage = new LinkedHashMap<>();
+            for (String language : SUPPORTED_LANGUAGES) {
+                String publicSegment = localizedProductPathSegment(product, language);
+                hrefByLanguage.put(language, frontendBaseUrl + "/" + language + "/shop/p/" + pathEncodeSegment(publicSegment));
+            }
+
+            appendUrlEntry(xml, hrefByLanguage, product.getUpdatedAt());
+        }
+    }
+
+    private void appendUrlEntry(StringBuilder xml,
+                                Map<String, String> hrefByLanguage,
+                                OffsetDateTime lastmod) {
+        String defaultHref = hrefByLanguage.get(DEFAULT_LANGUAGE);
+        if (defaultHref == null || defaultHref.isBlank()) {
+            return;
+        }
+
+        xml.append("  <url>\n");
+        xml.append("    <loc>").append(xmlEscape(defaultHref)).append("</loc>\n");
+
+        for (String language : SUPPORTED_LANGUAGES) {
+            String href = hrefByLanguage.get(language);
+            if (href == null || href.isBlank()) {
+                continue;
+            }
+            xml.append("    <xhtml:link rel=\"alternate\" hreflang=\"")
+                    .append(language)
+                    .append("\" href=\"")
+                    .append(xmlEscape(href))
+                    .append("\" />\n");
+        }
+
+        xml.append("    <xhtml:link rel=\"alternate\" hreflang=\"x-default\" href=\"")
+                .append(xmlEscape(defaultHref))
+                .append("\" />\n");
+
+        if (lastmod != null) {
+            xml.append("    <lastmod>").append(LASTMOD_FORMATTER.format(lastmod)).append("</lastmod>\n");
+        }
+
+        xml.append("  </url>\n");
+    }
+
+    private String localizedProductPathSegment(ShopProduct product, String language) {
+        String localizedName = product.getNameForLanguage(language);
+        String idPrefix = productIdPrefix(product.getId());
+        String tail = firstNonBlank(slugify(localizedName), slugify(product.getSlug()), "product");
+        return idPrefix.isBlank() ? tail : idPrefix + "-" + tail;
+    }
+
+    private String productIdPrefix(UUID productId) {
+        if (productId == null) {
+            return "";
+        }
+        String raw = productId.toString().trim().toLowerCase(Locale.ROOT);
+        int dashIndex = raw.indexOf('-');
+        if (dashIndex > 0) {
+            return raw.substring(0, dashIndex);
+        }
+        return raw.length() >= 8 ? raw.substring(0, 8) : raw;
+    }
+
+    static String slugify(String rawValue) {
+        String safeValue = rawValue == null ? "" : rawValue;
+        String normalized = Normalizer.normalize(safeValue, Normalizer.Form.NFD)
+                .replaceAll("\\p{M}+", "")
+                .toLowerCase(Locale.ROOT)
+                .replaceAll("[^a-z0-9]+", "-")
+                .replaceAll("^-+|-+$", "")
+                .replaceAll("-{2,}", "-");
+        return normalized;
+    }
+
+    private String firstNonBlank(String... values) {
+        if (values == null) {
+            return null;
+        }
+        for (String value : values) {
+            if (value != null && !value.isBlank()) {
+                return value;
+            }
+        }
+        return null;
+    }
+
+    private String pathEncodeSegment(String rawSegment) {
+        String safeSegment = rawSegment == null ? "" : rawSegment;
+        return URLEncoder.encode(safeSegment, StandardCharsets.UTF_8).replace("+", "%20");
+    }
+
+    private String xmlEscape(String value) {
+        return String.valueOf(value)
+                .replace("&", "&amp;")
+                .replace("<", "&lt;")
+                .replace(">", "&gt;")
+                .replace("\"", "&quot;")
+                .replace("'", "&apos;");
+    }
+
+    private String normalizeBaseUrl(String baseUrl) {
+        String normalized = (baseUrl == null ? "" : baseUrl).trim();
+        if (normalized.isBlank()) {
+            return "http://localhost:4200";
+        }
+        while (normalized.endsWith("/")) {
+            normalized = normalized.substring(0, normalized.length() - 1);
+        }
+        return normalized;
+    }
+
+    private record CachedSitemap(String xml, Instant expiresAt) {
+    }
+}
--- a/backend/src/main/resources/application.properties
+++ b/backend/src/main/resources/application.properties
@@ -56,6 +56,7 @@ app.mail.contact-request.admin.enabled=${APP_MAIL_CONTACT_REQUEST_ADMIN_ENABLED:
 app.mail.contact-request.admin.address=${APP_MAIL_CONTACT_REQUEST_ADMIN_ADDRESS:info@3d-fab.ch}
 app.mail.contact-request.customer.enabled=${APP_MAIL_CONTACT_REQUEST_CUSTOMER_ENABLED:true}
 app.frontend.base-url=${APP_FRONTEND_BASE_URL:http://localhost:4200}
+app.sitemap.shop.cache-seconds=${APP_SITEMAP_SHOP_CACHE_SECONDS:3600}

 # Admin back-office authentication
 admin.password=${ADMIN_PASSWORD}
--- a/backend/src/test/java/com/printcalculator/service/shop/ShopSitemapServiceTest.java
+++ b/backend/src/test/java/com/printcalculator/service/shop/ShopSitemapServiceTest.java
@@ -0,0 +1,116 @@
+package com.printcalculator.service.shop;
+
+import com.printcalculator.entity.ShopCategory;
+import com.printcalculator.entity.ShopProduct;
+import com.printcalculator.repository.ShopCategoryRepository;
+import com.printcalculator.repository.ShopProductRepository;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import java.time.Clock;
+import java.time.Instant;
+import java.time.OffsetDateTime;
+import java.time.ZoneOffset;
+import java.util.List;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+class ShopSitemapServiceTest {
+
+    @Mock
+    private ShopCategoryRepository shopCategoryRepository;
+    @Mock
+    private ShopProductRepository shopProductRepository;
+
+    private ShopSitemapService service;
+
+    @BeforeEach
+    void setUp() {
+        Clock fixedClock = Clock.fixed(Instant.parse("2026-03-11T10:00:00Z"), ZoneOffset.UTC);
+        service = new ShopSitemapService(
+                shopCategoryRepository,
+                shopProductRepository,
+                "https://3d-fab.ch/",
+                900,
+                fixedClock
+        );
+    }
+
+    @Test
+    void getShopSitemapXml_shouldGenerateLocalizedCategoryAndProductEntries() {
+        ShopCategory visibleCategory = new ShopCategory();
+        visibleCategory.setId(UUID.fromString("21111111-1111-1111-1111-111111111111"));
+        visibleCategory.setSlug("accessori");
+        visibleCategory.setIndexable(true);
+        visibleCategory.setIsActive(true);
+        visibleCategory.setUpdatedAt(OffsetDateTime.parse("2026-03-10T08:00:00Z"));
+
+        ShopCategory hiddenCategory = new ShopCategory();
+        hiddenCategory.setId(UUID.fromString("22222222-2222-2222-2222-222222222222"));
+        hiddenCategory.setSlug("bozza");
+        hiddenCategory.setIndexable(false);
+        hiddenCategory.setIsActive(true);
+        hiddenCategory.setUpdatedAt(OffsetDateTime.parse("2026-03-10T09:00:00Z"));
+
+        ShopProduct indexedProduct = new ShopProduct();
+        indexedProduct.setId(UUID.fromString("123e4567-e89b-12d3-a456-426614174000"));
+        indexedProduct.setCategory(visibleCategory);
+        indexedProduct.setSlug("supporto-bici");
+        indexedProduct.setNameIt("Supporto bici");
+        indexedProduct.setNameEn("Bike Holder");
+        indexedProduct.setNameDe("Fahrrad Halter");
+        indexedProduct.setNameFr("Support velo");
+        indexedProduct.setIndexable(true);
+        indexedProduct.setIsActive(true);
+        indexedProduct.setUpdatedAt(OffsetDateTime.parse("2026-03-11T07:30:00Z"));
+
+        ShopProduct hiddenProduct = new ShopProduct();
+        hiddenProduct.setId(UUID.fromString("33333333-3333-3333-3333-333333333333"));
+        hiddenProduct.setCategory(visibleCategory);
+        hiddenProduct.setSlug("draft");
+        hiddenProduct.setIndexable(false);
+        hiddenProduct.setIsActive(true);
+        hiddenProduct.setUpdatedAt(OffsetDateTime.parse("2026-03-11T08:00:00Z"));
+
+        when(shopCategoryRepository.findAllByIsActiveTrueOrderBySortOrderAscNameAsc())
+                .thenReturn(List.of(visibleCategory, hiddenCategory));
+        when(shopProductRepository.findAllByIsActiveTrueOrderByIsFeaturedDescSortOrderAscNameAsc())
+                .thenReturn(List.of(indexedProduct, hiddenProduct));
+
+        String xml = service.getShopSitemapXml();
+
+        assertTrue(xml.contains("<loc>https://3d-fab.ch/it/shop/accessori</loc>"));
+        assertTrue(xml.contains("hreflang=\"en\" href=\"https://3d-fab.ch/en/shop/accessori\""));
+        assertFalse(xml.contains("https://3d-fab.ch/it/shop/bozza"));
+
+        assertTrue(xml.contains("<loc>https://3d-fab.ch/it/shop/p/123e4567-supporto-bici</loc>"));
+        assertTrue(xml.contains("hreflang=\"en\" href=\"https://3d-fab.ch/en/shop/p/123e4567-bike-holder\""));
+        assertTrue(xml.contains("hreflang=\"de\" href=\"https://3d-fab.ch/de/shop/p/123e4567-fahrrad-halter\""));
+        assertTrue(xml.contains("hreflang=\"x-default\" href=\"https://3d-fab.ch/it/shop/p/123e4567-supporto-bici\""));
+        assertTrue(xml.contains("<lastmod>2026-03-11T07:30:00Z</lastmod>"));
+        assertFalse(xml.contains("33333333-draft"));
+    }
+
+    @Test
+    void getShopSitemapXml_shouldServeCachedPayloadWithinTtl() {
+        when(shopCategoryRepository.findAllByIsActiveTrueOrderBySortOrderAscNameAsc()).thenReturn(List.of());
+        when(shopProductRepository.findAllByIsActiveTrueOrderByIsFeaturedDescSortOrderAscNameAsc()).thenReturn(List.of());
+
+        String firstXml = service.getShopSitemapXml();
+        String secondXml = service.getShopSitemapXml();
+
+        assertTrue(firstXml.contains("<urlset"));
+        assertTrue(secondXml.contains("<urlset"));
+        verify(shopCategoryRepository, times(1)).findAllByIsActiveTrueOrderBySortOrderAscNameAsc();
+        verify(shopProductRepository, times(1)).findAllByIsActiveTrueOrderByIsFeaturedDescSortOrderAscNameAsc();
+    }
+}
--- a/frontend/public/sitemap-static.xml
+++ b/frontend/public/sitemap-static.xml
@@ -0,0 +1,154 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset
+  xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
+  xmlns:xhtml="http://www.w3.org/1999/xhtml"
+>
+  <url>
+    <loc>https://3d-fab.ch/it</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it" />
+    <changefreq>weekly</changefreq>
+    <priority>1.0</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/it/calculator/basic</loc>
+    <xhtml:link
+      rel="alternate"
+      hreflang="it"
+      href="https://3d-fab.ch/it/calculator/basic"
+    />
+    <xhtml:link
+      rel="alternate"
+      hreflang="en"
+      href="https://3d-fab.ch/en/calculator/basic"
+    />
+    <xhtml:link
+      rel="alternate"
+      hreflang="de"
+      href="https://3d-fab.ch/de/calculator/basic"
+    />
+    <xhtml:link
+      rel="alternate"
+      hreflang="fr"
+      href="https://3d-fab.ch/fr/calculator/basic"
+    />
+    <xhtml:link
+      rel="alternate"
+      hreflang="x-default"
+      href="https://3d-fab.ch/it/calculator/basic"
+    />
+    <changefreq>weekly</changefreq>
+    <priority>0.9</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/it/calculator/advanced</loc>
+    <xhtml:link
+      rel="alternate"
+      hreflang="it"
+      href="https://3d-fab.ch/it/calculator/advanced"
+    />
+    <xhtml:link
+      rel="alternate"
+      hreflang="en"
+      href="https://3d-fab.ch/en/calculator/advanced"
+    />
+    <xhtml:link
+      rel="alternate"
+      hreflang="de"
+      href="https://3d-fab.ch/de/calculator/advanced"
+    />
+    <xhtml:link
+      rel="alternate"
+      hreflang="fr"
+      href="https://3d-fab.ch/fr/calculator/advanced"
+    />
+    <xhtml:link
+      rel="alternate"
+      hreflang="x-default"
+      href="https://3d-fab.ch/it/calculator/advanced"
+    />
+    <changefreq>weekly</changefreq>
+    <priority>0.8</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/it/shop</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/shop" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/shop" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/shop" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/shop" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/shop" />
+    <changefreq>weekly</changefreq>
+    <priority>0.8</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/it/about</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/about" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/about" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/about" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/about" />
+    <xhtml:link
+      rel="alternate"
+      hreflang="x-default"
+      href="https://3d-fab.ch/it/about"
+    />
+    <changefreq>monthly</changefreq>
+    <priority>0.7</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/it/contact</loc>
+    <xhtml:link
+      rel="alternate"
+      hreflang="it"
+      href="https://3d-fab.ch/it/contact"
+    />
+    <xhtml:link
+      rel="alternate"
+      hreflang="en"
+      href="https://3d-fab.ch/en/contact"
+    />
+    <xhtml:link
+      rel="alternate"
+      hreflang="de"
+      href="https://3d-fab.ch/de/contact"
+    />
+    <xhtml:link
+      rel="alternate"
+      hreflang="fr"
+      href="https://3d-fab.ch/fr/contact"
+    />
+    <xhtml:link
+      rel="alternate"
+      hreflang="x-default"
+      href="https://3d-fab.ch/it/contact"
+    />
+    <changefreq>monthly</changefreq>
+    <priority>0.7</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/it/privacy</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/privacy" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/privacy" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/privacy" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/privacy" />
+    <xhtml:link
+      rel="alternate"
+      hreflang="x-default"
+      href="https://3d-fab.ch/it/privacy"
+    />
+    <changefreq>yearly</changefreq>
+    <priority>0.4</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/it/terms</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/terms" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/terms" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/terms" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/terms" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/terms" />
+    <changefreq>yearly</changefreq>
+    <priority>0.4</priority>
+  </url>
+</urlset>
--- a/frontend/public/sitemap.xml
+++ b/frontend/public/sitemap.xml
@@ -1,154 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<urlset
-  xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
-  xmlns:xhtml="http://www.w3.org/1999/xhtml"
->
-  <url>
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-    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it" />
-    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en" />
-    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de" />
-    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr" />
-    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it" />
-    <changefreq>weekly</changefreq>
-    <priority>1.0</priority>
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-  <url>
-    <loc>https://3d-fab.ch/it/calculator/basic</loc>
-    <xhtml:link
-      rel="alternate"
-      hreflang="it"
-      href="https://3d-fab.ch/it/calculator/basic"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="en"
-      href="https://3d-fab.ch/en/calculator/basic"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="de"
-      href="https://3d-fab.ch/de/calculator/basic"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="fr"
-      href="https://3d-fab.ch/fr/calculator/basic"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="x-default"
-      href="https://3d-fab.ch/it/calculator/basic"
-    />
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-  <url>
-    <loc>https://3d-fab.ch/it/calculator/advanced</loc>
-    <xhtml:link
-      rel="alternate"
-      hreflang="it"
-      href="https://3d-fab.ch/it/calculator/advanced"
-    />
-    <xhtml:link
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-      hreflang="en"
-      href="https://3d-fab.ch/en/calculator/advanced"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="de"
-      href="https://3d-fab.ch/de/calculator/advanced"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="fr"
-      href="https://3d-fab.ch/fr/calculator/advanced"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="x-default"
-      href="https://3d-fab.ch/it/calculator/advanced"
-    />
-    <changefreq>weekly</changefreq>
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-  </url>
-  <url>
-    <loc>https://3d-fab.ch/it/shop</loc>
-    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/shop" />
-    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/shop" />
-    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/shop" />
-    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/shop" />
-    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/shop" />
-    <changefreq>weekly</changefreq>
-    <priority>0.8</priority>
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-  <url>
-    <loc>https://3d-fab.ch/it/about</loc>
-    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/about" />
-    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/about" />
-    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/about" />
-    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/about" />
-    <xhtml:link
-      rel="alternate"
-      hreflang="x-default"
-      href="https://3d-fab.ch/it/about"
-    />
-    <changefreq>monthly</changefreq>
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-  </url>
-  <url>
-    <loc>https://3d-fab.ch/it/contact</loc>
-    <xhtml:link
-      rel="alternate"
-      hreflang="it"
-      href="https://3d-fab.ch/it/contact"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="en"
-      href="https://3d-fab.ch/en/contact"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="de"
-      href="https://3d-fab.ch/de/contact"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="fr"
-      href="https://3d-fab.ch/fr/contact"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="x-default"
-      href="https://3d-fab.ch/it/contact"
-    />
-    <changefreq>monthly</changefreq>
-    <priority>0.7</priority>
-  </url>
-  <url>
-    <loc>https://3d-fab.ch/it/privacy</loc>
-    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/privacy" />
-    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/privacy" />
-    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/privacy" />
-    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/privacy" />
-    <xhtml:link
-      rel="alternate"
-      hreflang="x-default"
-      href="https://3d-fab.ch/it/privacy"
-    />
-    <changefreq>yearly</changefreq>
-    <priority>0.4</priority>
-  </url>
-  <url>
-    <loc>https://3d-fab.ch/it/terms</loc>
-    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/terms" />
-    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/terms" />
-    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/terms" />
-    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/terms" />
-    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/terms" />
-    <changefreq>yearly</changefreq>
-    <priority>0.4</priority>
-  </url>
-</urlset>
+<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+  <sitemap>
+    <loc>https://3d-fab.ch/sitemap-static.xml</loc>
+  </sitemap>
+  <sitemap>
+    <loc>https://3d-fab.ch/api/sitemap-shop.xml</loc>
+  </sitemap>
+</sitemapindex>