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()
+    }