Integration of logistics app as a separate frontend to associate a dewar to a storage slot

.gitignore

@@ -1 +1,3 @@
 /frontend/.env.local
+/backend/ssl/
+/backend/app/test.db

backend/app/routers/logistics.py

@@ -5,30 +5,34 @@ from typing import List
 from app.models import Dewar as DewarModel, Slot as SlotModel, LogisticsEvent as LogisticsEventModel
 from app.schemas import LogisticsEventCreate, Slot as SlotSchema, Dewar as DewarSchema
 from app.database import get_db
-from app.data import slots_data
 import logging
 
 router = APIRouter()
 
-# Configure logging
 logging.basicConfig(level=logging.INFO)
 logger = logging.getLogger(__name__)
 
 
+@router.get("/slots", response_model=List[SlotSchema])
+async def get_all_slots(db: Session = Depends(get_db)):
+    slots = db.query(SlotModel).all()
+    return slots
+
 @router.get("/dewars", response_model=List[DewarSchema])
 async def get_all_dewars(db: Session = Depends(get_db)):
     dewars = db.query(DewarModel).all()
     return dewars
 
-
 @router.get("/dewar/{unique_id}", response_model=DewarSchema)
 async def get_dewar_by_unique_id(unique_id: str, db: Session = Depends(get_db)):
+    logger.info(f"Received request for dewar with unique_id: {unique_id}")
     dewar = db.query(DewarModel).filter(DewarModel.unique_id == unique_id.strip()).first()
     if not dewar:
+        logger.warning(f"Dewar with unique_id '{unique_id}' not found.")
         raise HTTPException(status_code=404, detail="Dewar not found")
+    logger.info(f"Returning dewar: {dewar}")
     return dewar
 
-
 @router.post("/dewar/scan", response_model=dict)
 async def scan_dewar(event_data: LogisticsEventCreate, db: Session = Depends(get_db)):
     dewar_qr_code = event_data.dewar_qr_code
@@ -43,71 +47,19 @@ async def scan_dewar(event_data: LogisticsEventCreate, db: Session = Depends(get
     if transaction_type == 'incoming':
         if not slot or slot.occupied:
             raise HTTPException(status_code=400, detail="Slot not found or already occupied")
+        slot.dewar_id = dewar.id
         slot.occupied = True
-
     elif transaction_type == 'outgoing':
-        if not slot or not slot.occupied:
+        if not slot or not slot.occupied or slot.dewar_id != dewar.id:
-            raise HTTPException(status_code=400, detail="Slot not found or not occupied")
+            raise HTTPException(status_code=400, detail="Slot not found or dewar not associated with slot")
+        slot.dewar_id = None
         slot.occupied = False
 
-    # Log the event
     log_event(db, dewar.id, slot.id if slot else None, transaction_type)
-
     db.commit()
     return {"message": "Status updated successfully"}
 
-
+def log_event(db: Session, dewar_id: int, slot_id: int, event_type: str):
-def log_event(db: Session, dewar_id: int, slot_id: str, event_type: str):
     new_event = LogisticsEventModel(dewar_id=dewar_id, slot_id=slot_id, event_type=event_type)
     db.add(new_event)
     db.commit()
-
-
-# Convert SQLAlchemy model to dictionary (if necessary)
-def slot_to_dict(slot: SlotModel) -> dict:
-    return {
-        "id": slot.id,
-        "qr_code": slot.qr_code,
-        "label": slot.label,
-        "qr_base": slot.qr_base,
-        "occupied": slot.occupied,
-        "needs_refill": slot.needs_refill,
-        "last_refill": slot.last_refill.isoformat(),
-        "time_until_refill": str(slot.time_until_refill) if slot.time_until_refill else None  # Ensure correct format
-    }
-
-@router.get("/slots", response_model=List[dict])
-def read_slots(db: Session = Depends(get_db)):
-    return [slot_to_dict(slot) for slot in db.query(SlotModel).all()]
-
-
-@router.get("/dewars/refill-status", response_model=List[DewarSchema])
-async def refill_status(db: Session = Depends(get_db)):
-    dewars = db.query(DewarModel).all()
-    result = []
-    current_time = datetime.utcnow()
-
-    for dewar in dewars:
-        last_refill_event = (
-            db.query(LogisticsEventModel)
-            .filter(
-                LogisticsEventModel.dewar_id == dewar.id,
-                LogisticsEventModel.event_type == 'refill'
-            )
-            .order_by(LogisticsEventModel.timestamp.desc())
-            .first()
-        )
-
-        time_until_refill = None
-        if last_refill_event:
-            time_until_refill = last_refill_event.timestamp + timedelta(hours=24) - current_time
-
-        dewar_data = DewarSchema(
-            id=dewar.id,
-            dewar_name=dewar.dewar_name,
-            unique_id=dewar.unique_id,
-            time_until_refill=str(time_until_refill) if time_until_refill else None  # Ensure correct format
-        )
-        result.append(dewar_data)
-
-    return result