feat(): new feature

backend/api/routes.py

@@ -0,0 +1,137 @@
+from fastapi import APIRouter, UploadFile, File, HTTPException, Form
+from models.quote_request import QuoteRequest, QuoteResponse
+from slicer import slicer_service
+from calculator import GCodeParser, QuoteCalculator
+from config import settings
+from profile_manager import ProfileManager
+import os
+import shutil
+import uuid
+import logging
+import json
+
+router = APIRouter()
+logger = logging.getLogger("api")
+profile_manager = ProfileManager()
+
+def cleanup_files(files: list):
+    for f in files:
+        try:
+            if os.path.exists(f):
+                os.remove(f)
+        except Exception as e:
+            logger.warning(f"Failed to delete temp file {f}: {e}")
+
+def format_time(seconds: int) -> str:
+    m, s = divmod(seconds, 60)
+    h, m = divmod(m, 60)
+    if h > 0:
+        return f"{int(h)}h {int(m)}m"
+    return f"{int(m)}m {int(s)}s"
+
+@router.post("/quote", response_model=QuoteResponse)
+async def calculate_quote(
+    file: UploadFile = File(...),
+    # Compatible with form data if we parse manually or use specific dependencies.
+    # FastAPI handling of mixed File + JSON/Form is tricky.
+    # Easiest is to use Form(...) for fields.
+    machine: str = Form("bambu_a1"),
+    filament: str = Form("pla_basic"),
+    quality: str = Form("standard"),
+    layer_height: str = Form(None), # Form data comes as strings usually
+    infill_density: int = Form(None),
+    infill_pattern: str = Form(None),
+    support_enabled: bool = Form(False),
+    print_speed: int = Form(None)
+):
+    """
+    Endpoint for calculating print quote.
+    Accepts Multipart Form Data:
+    - file: The STL file
+    - machine, filament, quality: strings
+    - other overrides
+    """
+    if not file.filename.lower().endswith(".stl"):
+        raise HTTPException(status_code=400, detail="Only .stl files are supported.")
+    if machine != "bambu_a1":
+        raise HTTPException(status_code=400, detail="Unsupported machine.")
+
+    req_id = str(uuid.uuid4())
+    input_filename = f"{req_id}.stl"
+    output_filename = f"{req_id}.gcode"
+    
+    input_path = os.path.join(settings.TEMP_DIR, input_filename)
+    output_path = os.path.join(settings.TEMP_DIR, output_filename)
+
+    try:
+        # 1. Save File
+        with open(input_path, "wb") as buffer:
+            shutil.copyfileobj(file.file, buffer)
+            
+        # 2. Build Overrides
+        overrides = {}
+        if layer_height is not None and layer_height != "":
+            overrides["layer_height"] = layer_height
+        if infill_density is not None:
+            overrides["sparse_infill_density"] = f"{infill_density}%"
+        if infill_pattern:
+            overrides["sparse_infill_pattern"] = infill_pattern
+        if support_enabled: overrides["enable_support"] = "1"
+        if print_speed is not None:
+            overrides["default_print_speed"] = str(print_speed)
+
+        # 3. Slice
+        # Pass parameters to slicer service
+        slicer_service.slice_stl(
+            input_stl_path=input_path,
+            output_gcode_path=output_path,
+            machine=machine,
+            filament=filament,
+            quality=quality,
+            overrides=overrides
+        )
+        
+        # 4. Parse
+        stats = GCodeParser.parse_metadata(output_path)
+        if stats["print_time_seconds"] == 0 and stats["filament_weight_g"] == 0:
+             raise HTTPException(status_code=500, detail="Slicing returned empty stats.")
+
+        # 5. Calculate
+        # We could allow filament cost override here too if passed in params
+        quote = QuoteCalculator.calculate(stats)
+        
+        return QuoteResponse(
+            success=True,
+            data={
+                "print_time_seconds": stats["print_time_seconds"],
+                "print_time_formatted": format_time(stats["print_time_seconds"]),
+                "material_grams": stats["filament_weight_g"],
+                "cost": {
+                    "material": quote["breakdown"]["material_cost"],
+                    "machine": quote["breakdown"]["machine_cost"],
+                    "energy": quote["breakdown"]["energy_cost"],
+                    "markup": quote["breakdown"]["markup_amount"],
+                    "total": quote["total_price"]
+                },
+                "parameters": {
+                    "machine": machine,
+                    "filament": filament,
+                    "quality": quality
+                }
+            }
+        )
+
+    except Exception as e:
+        logger.error(f"Quote error: {e}", exc_info=True)
+        return QuoteResponse(success=False, error=str(e))
+    
+    finally:
+        cleanup_files([input_path, output_path])
+
+@router.get("/profiles/available")
+def get_profiles():
+    return {
+        "machines": profile_manager.list_machines(),
+        "filaments": profile_manager.list_filaments(),
+        "processes": profile_manager.list_processes()
+    }

backend/main.py

@@ -58,7 +58,6 @@ async def legacy_calculate(file: UploadFile = File(...)):
     # Map Check response to old format
     data = resp.data
     return {
-        "printer": data.get("printer", "Unknown"),
         "print_time_seconds": data.get("print_time_seconds", 0),
         "print_time_formatted": data.get("print_time_formatted", ""),
         "material_grams": data.get("material_grams", 0.0),
@@ -72,4 +71,4 @@ def health_check():
 
 if __name__ == "__main__":
     import uvicorn
-    uvicorn.run(app, host="0.0.0.0", port=8000)
+    uvicorn.run(app, host="0.0.0.0", port=8000)

backend/models/quote_request.py

@@ -0,0 +1,37 @@
+from pydantic import BaseModel, Field, validator
+from typing import Optional, Literal, Dict, Any
+
+class QuoteRequest(BaseModel):
+    # File STL (base64 or path)
+    file_path: Optional[str] = None
+    file_base64: Optional[str] = None
+    
+    # Parametri slicing
+    machine: str = Field(default="bambu_a1", description="Machine type")
+    filament: str = Field(default="pla_basic", description="Filament type")
+    quality: Literal["draft", "standard", "fine"] = Field(default="standard")
+    
+    # Parametri opzionali
+    layer_height: Optional[float] = Field(None, ge=0.08, le=0.32)
+    infill_density: Optional[int] = Field(None, ge=0, le=100)
+    support_enabled: Optional[bool] = None
+    print_speed: Optional[int] = Field(None, ge=20, le=300)
+    
+    # Pricing overrides
+    filament_cost_override: Optional[float] = None
+    
+    @validator('machine')
+    def validate_machine(cls, v):
+        # This list should ideally be dynamic, but for validation purposes we start with known ones.
+        # Logic in ProfileManager can be looser or strict.
+        # For now, we allow the string through and let ProfileManager validate availability.
+        return v
+    
+    @validator('filament')
+    def validate_filament(cls, v):
+        return v
+
+class QuoteResponse(BaseModel):
+    success: bool
+    data: Optional[Dict[str, Any]] = None
+    error: Optional[str] = None

backend/profile_cache.py

@@ -0,0 +1,15 @@
+from functools import lru_cache
+import hashlib
+from typing import Dict, Tuple
+
+# We can't cache the profile manager instance itself easily if it's not a singleton,
+# but we can cache the result of a merge function if we pass simple types.
+# However, to avoid circular imports or complex dependency injection, 
+# we will just provide a helper to generate cache keys and a holder for logic if needed.
+# For now, the ProfileManager will strictly determine *what* to merge.
+# Validating the cache strategy: since file I/O is the bottleneck, we want to cache the *content*.
+
+def get_cache_key(machine: str, filament: str, process: str) -> str:
+    """Helper to create a unique cache key"""
+    data = f"{machine}|{filament}|{process}"
+    return hashlib.md5(data.encode()).hexdigest()

backend/profile_manager.py

@@ -0,0 +1,193 @@
+import os
+import json
+import logging
+from typing import Dict, List, Tuple, Optional
+from profile_cache import get_cache_key
+
+
+logger = logging.getLogger(__name__)
+
+class ProfileManager:
+    def __init__(self, profiles_root: str = "profiles"):
+        # Assuming profiles_root is relative to backend or absolute
+        if not os.path.isabs(profiles_root):
+            base_dir = os.path.dirname(os.path.abspath(__file__))
+            self.profiles_root = os.path.join(base_dir, profiles_root)
+        else:
+            self.profiles_root = profiles_root
+            
+        if not os.path.exists(self.profiles_root):
+            logger.warning(f"Profiles root not found: {self.profiles_root}")
+
+    def get_profiles(self, machine: str, filament: str, process: str) -> Tuple[Dict, Dict, Dict]:
+        """
+        Main entry point to get merged profiles.
+        Args:
+            machine: e.g. "Bambu Lab A1 0.4 nozzle"
+            filament: e.g. "Bambu PLA Basic @BBL A1"
+            process: e.g. "0.20mm Standard @BBL A1"
+        """
+        # Try cache first (although specific logic is needed if we cache the *result* or the *files*)
+        # Since we implemented a simple external cache helper, let's use it if we want, 
+        # but for now we will rely on internal logic or the lru_cache decorator on a helper method.
+        # But wait, the `get_cached_profiles` in profile_cache.py calls `build_merged_profiles` which is logic WE need to implement.
+        # So we should probably move the implementation here and have the cache wrapper call it, 
+        # OR just implement it here and wrap it.
+        
+        return self._build_merged_profiles(machine, filament, process)
+
+    def _build_merged_profiles(self, machine_name: str, filament_name: str, process_name: str) -> Tuple[Dict, Dict, Dict]:
+        # We need to find the files. 
+        # The naming convention in OrcaSlicer profiles usually involves the Vendor (e.g. BBL).
+        # We might need a mapping or search.
+        # For this implementation, we will assume we know the relative paths or search for them.
+        
+        # Strategy: Search in all vendor subdirs for the specific JSON files.
+        # Because names are usually unique enough or we can specify the expected vendor.
+        # However, to be fast, we can map "machine_name" to a file path.
+        
+        machine_file = self._find_profile_file(machine_name, "machine")
+        filament_file = self._find_profile_file(filament_name, "filament")
+        process_file = self._find_profile_file(process_name, "process")
+        
+        if not machine_file:
+            raise FileNotFoundError(f"Machine profile not found: {machine_name}")
+        if not filament_file:
+            raise FileNotFoundError(f"Filament profile not found: {filament_name}")
+        if not process_file:
+            raise FileNotFoundError(f"Process profile not found: {process_name}")
+            
+        machine_profile = self._merge_chain(machine_file)
+        filament_profile = self._merge_chain(filament_file)
+        process_profile = self._merge_chain(process_file)
+        
+        # Apply patches
+        machine_profile = self._apply_patches(machine_profile, "machine")
+        process_profile = self._apply_patches(process_profile, "process")
+        
+        return machine_profile, process_profile, filament_profile
+
+    def _find_profile_file(self, profile_name: str, profile_type: str) -> Optional[str]:
+        """
+        Searches for a profile file by name in the profiles directory.
+        The name should match the filename (without .json possibly) or be a precise match.
+        """
+        # Add .json if missing
+        filename = profile_name if profile_name.endswith(".json") else f"{profile_name}.json"
+        
+        for root, dirs, files in os.walk(self.profiles_root):
+            if filename in files:
+                # Check if it is in the correct type folder (machine, filament, process)
+                # OrcaSlicer structure: Vendor/process/file.json
+                # We optionally verify parent dir
+                if os.path.basename(root) == profile_type or profile_type in root:
+                    return os.path.join(root, filename)
+                
+                # Fallback: if we simply found it, maybe just return it? 
+                # Some common files might be in root or other places.
+                # Let's return it if we are fairly sure.
+                return os.path.join(root, filename)
+        
+        return None
+
+    def _merge_chain(self, final_file_path: str) -> Dict:
+        """
+        Resolves inheritance and merges.
+        """
+        chain = []
+        current_path = final_file_path
+        
+        # 1. Build chain
+        while current_path:
+            chain.insert(0, current_path) # Prepend
+            
+            with open(current_path, 'r', encoding='utf-8') as f:
+                try:
+                    data = json.load(f)
+                except json.JSONDecodeError as e:
+                    logger.error(f"Failed to decode JSON: {current_path}")
+                    raise e
+            
+            inherits = data.get("inherits")
+            if inherits:
+                # Resolve inherited file
+                # It is usually in the same directory or relative.
+                # OrcaSlicer logic: checks same dir, then parent, etc.
+                # Usually it's in the same directory.
+                parent_dir = os.path.dirname(current_path)
+                inherited_path = os.path.join(parent_dir, inherits)
+                
+                # Special case: if not found, it might be in a common folder? 
+                # But OrcaSlicer usually keeps them local or in specific common dirs.
+                if not os.path.exists(inherited_path) and not inherits.endswith(".json"):
+                     inherited_path += ".json"
+                
+                if os.path.exists(inherited_path):
+                    current_path = inherited_path
+                else:
+                    # Could be a system common file not in the same dir?
+                    # For simplicty, try to look up in the same generic type folder across the vendor?
+                    # Or just fail for now. 
+                    # Often "fdm_machine_common.json" is at the Vendor root or similar?
+                    # Let's try searching recursively if not found in place.
+                    found = self._find_profile_file(inherits, "any") # "any" type
+                    if found:
+                        current_path = found
+                    else:
+                        logger.warning(f"Inherited profile '{inherits}' not found for '{current_path}' (Root: {self.profiles_root})")
+                        current_path = None
+            else:
+                current_path = None
+
+        # 2. Merge
+        merged = {}
+        for path in chain:
+            with open(path, 'r', encoding='utf-8') as f:
+                data = json.load(f)
+                # Shallow update
+                merged.update(data)
+                
+        # Remove metadata
+        merged.pop("inherits", None)
+        
+        return merged
+
+    def _apply_patches(self, profile: Dict, profile_type: str) -> Dict:
+        if profile_type == "machine":
+            # Patch: G92 E0 to ensure extrusion reference text matches
+            lcg = profile.get("layer_change_gcode", "")
+            if "G92 E0" not in lcg:
+                # Append neatly
+                if lcg and not lcg.endswith("\n"):
+                    lcg += "\n"
+                lcg += "G92 E0"
+                profile["layer_change_gcode"] = lcg
+            
+            # Patch: ensure printable height is sufficient? 
+            # Only if necessary. For now, trust the profile.
+
+        elif profile_type == "process":
+            # Optional: Disable skirt/brim if we want a "clean" print estimation?
+            # Actually, for accurate cost, we SHOULD include skirt/brim if the profile has it.
+            pass
+            
+        return profile
+    
+    def list_machines(self) -> List[str]:
+        # Simple helper to list available machine JSONs
+        return self._list_profiles_by_type("machine")
+        
+    def list_filaments(self) -> List[str]:
+        return self._list_profiles_by_type("filament")
+
+    def list_processes(self) -> List[str]:
+        return self._list_profiles_by_type("process")
+
+    def _list_profiles_by_type(self, ptype: str) -> List[str]:
+        results = []
+        for root, dirs, files in os.walk(self.profiles_root):
+            if os.path.basename(root) == ptype:
+                for f in files:
+                    if f.endswith(".json") and "common" not in f:
+                         results.append(f.replace(".json", ""))
+        return sorted(results)

backend/profile_mappings.json

@@ -0,0 +1,24 @@
+{
+  "quality_to_process": {
+    "draft": "0.28mm Extra Draft @BBL A1",
+    "standard": "0.20mm Standard @BBL A1",
+    "fine": "0.12mm Fine @BBL A1"
+  },
+  "filament_costs": {
+    "pla_basic": 20.0,
+    "petg_basic": 25.0,
+    "abs_basic": 22.0,
+    "tpu_95a": 35.0
+  },
+  "filament_to_profile": {
+    "pla_basic": "Bambu PLA Basic @BBL A1",
+    "petg_basic": "Bambu PETG Basic @BBL A1",
+    "abs_basic": "Bambu ABS @BBL A1",
+    "tpu_95a": "Bambu TPU 95A @BBL A1"
+  },
+  "machine_to_profile": {
+    "bambu_a1": "Bambu Lab A1 0.4 nozzle",
+    "bambu_x1": "Bambu Lab X1 Carbon 0.4 nozzle",
+    "bambu_p1s": "Bambu Lab P1S 0.4 nozzle"
+  }
+}

backend/tests/test_profile_logic.py

@@ -0,0 +1,58 @@
+import sys
+import os
+import unittest
+import json
+
+# Add backend to path
+sys.path.append(os.path.join(os.path.dirname(__file__), ".."))
+
+from profile_manager import ProfileManager
+from profile_cache import get_cache_key
+
+class TestProfileManager(unittest.TestCase):
+    def setUp(self):
+        self.pm = ProfileManager(profiles_root="profiles")
+        
+    def test_list_machines(self):
+        machines = self.pm.list_machines()
+        print(f"Found machines: {len(machines)}")
+        self.assertTrue(len(machines) > 0, "No machines found")
+        # Check for a known machine
+        self.assertTrue(any("Bambu Lab A1" in m for m in machines), "Bambu Lab A1 should be in the list")
+
+    def test_find_profile(self):
+        # We know "Bambu Lab A1 0.4 nozzle" should exist (based on user context and mappings)
+        # It might be in profiles/BBL/machine/
+        path = self.pm._find_profile_file("Bambu Lab A1 0.4 nozzle", "machine")
+        self.assertIsNotNone(path, "Could not find Bambu Lab A1 machine profile")
+        print(f"Found profile at: {path}")
+
+    def test_scan_profiles_inheritance(self):
+        # Pick a profile we expect to inherit stuff
+        # e.g. "Bambu Lab A1 0.4 nozzle" inherits "fdm_bbl_3dp_001_common" which inherits "fdm_machine_common"
+        merged, _, _ = self.pm.get_profiles(
+            "Bambu Lab A1 0.4 nozzle", 
+            "Bambu PLA Basic @BBL A1", 
+            "0.20mm Standard @BBL A1"
+        )
+        
+        self.assertIsNotNone(merged)
+        # Check if inherits is gone
+        self.assertNotIn("inherits", merged)
+        # Check if patch applied (G92 E0)
+        self.assertIn("G92 E0", merged.get("layer_change_gcode", ""))
+        
+        # Check specific key from base
+        # "printer_technology": "FFF" is usually in common
+        # We can't be 100% sure of keys without seeing file, but let's check something likely
+        self.assertTrue("nozzle_diameter" in merged or "extruder_clearance_height_to_lid" in merged or "printable_height" in merged)
+
+    def test_mappings_resolution(self):
+        # Test if the slicer service would resolve correctly? 
+        # We can just test the manager with mapped names if the manager supported it, 
+        # but the manager deals with explicit names. 
+        # Integration test handles the mapping.
+        pass
+
+if __name__ == '__main__':
+    unittest.main()