added a router for logistics, now creating label

backend/app/crud.py

@@ -2,7 +2,6 @@ import logging
 from sqlalchemy.orm import Session, joinedload
 from app.models import Shipment
 
-
 def get_shipments(db: Session):
     logging.info("Fetching all shipments from the database.")
     shipments = db.query(Shipment).options(
@@ -18,7 +17,6 @@ def get_shipments(db: Session):
         logging.debug(f"Shipment ID: {shipment.id}, Shipment Name: {shipment.shipment_name}")
     return shipments
 
-
 def get_shipment_by_id(db: Session, id: int):
     logging.info(f"Fetching shipment with ID: {id}")
     shipment = db.query(Shipment).options(

backend/app/main.py

@@ -3,7 +3,7 @@
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 
-from app.routers import address, contact, proposal, dewar, shipment, puck, spreadsheet
+from app.routers import address, contact, proposal, dewar, shipment, puck, spreadsheet, logistics
 from app.database import Base, engine, SessionLocal, load_sample_data
 
 app = FastAPI()
@@ -39,6 +39,7 @@ app.include_router(dewar.router, prefix="/dewars", tags=["dewars"])
 app.include_router(shipment.router, prefix="/shipments", tags=["shipments"])
 app.include_router(puck.router, prefix="/pucks", tags=["pucks"])
 app.include_router(spreadsheet.router, tags=["spreadsheet"])
+app.include_router(dewar.router, prefix="/logistics", tags=["logistics"])
 
 if __name__ == "__main__":
     import uvicorn

backend/app/models.py

-from sqlalchemy import Column, Integer, String, Date, ForeignKey, JSON
+from sqlalchemy import Column, Integer, String, Date, ForeignKey, JSON, Interval, DateTime, Boolean
 from sqlalchemy.orm import relationship
 from app.database import Base
+from datetime import datetime, timedelta
 import uuid
 
 
@@ -130,3 +131,23 @@ class Sample(Base):
     # Foreign keys and relationships
     puck_id = Column(Integer, ForeignKey('pucks.id'))
     puck = relationship("Puck", back_populates="samples")
+
+class Slot(Base):
+    __tablename__ = "slots"
+    id = Column(String, primary_key=True, index=True)
+    occupied = Column(Boolean, default=False)
+    needs_refill = Column(Boolean, default=False)
+    time_until_refill = Column(Interval, nullable=True)
+    last_refill = Column(DateTime, default=datetime.utcnow)
+
+
+class LogisticsEvent(Base):
+    __tablename__ = "logistics_events"
+    id = Column(Integer, primary_key=True, index=True, autoincrement=True)
+    dewar_id = Column(Integer, ForeignKey('dewars.id'), nullable=False)
+    slot_id = Column(String, ForeignKey('slots.id'), nullable=True)
+    event_type = Column(String, nullable=False)
+    timestamp = Column(DateTime, default=datetime.utcnow)
+
+    dewar = relationship("Dewar")
+    slot = relationship("Slot")
\ No newline at end of file

backend/app/routers/dewar.py

+import os
+import tempfile  # <-- Add this import
+import xml.etree.ElementTree as ET
 from fastapi import APIRouter, HTTPException, status, Depends, Response
 from sqlalchemy.orm import Session, joinedload
 from typing import List
@@ -11,28 +14,30 @@ from app.schemas import (
     DewarType as DewarTypeSchema,
     DewarTypeCreate,
     DewarSerialNumber as DewarSerialNumberSchema,
-    DewarSerialNumberCreate
+    DewarSerialNumberCreate,
+    Shipment as ShipmentSchema  # Clearer name for schema
 )
 from app.models import (
     Dewar as DewarModel,
     Puck as PuckModel,
     Sample as SampleModel,
     DewarType as DewarTypeModel,
-    DewarSerialNumber as DewarSerialNumberModel
+    DewarSerialNumber as DewarSerialNumberModel,
+    Shipment as ShipmentModel  # Clearer name for model
 )
 from app.dependencies import get_db
 import uuid
 import qrcode
 import io
 from io import BytesIO
-from PIL import Image
-from reportlab.lib.pagesizes import A5
+from PIL import ImageFont, ImageDraw, Image
+from reportlab.lib.pagesizes import A5, landscape
 from reportlab.lib.units import cm
 from reportlab.pdfgen import canvas
+from app.crud import get_shipments, get_shipment_by_id  # Import CRUD functions for shipment
 
 router = APIRouter()
 
-
 def generate_unique_id(db: Session) -> str:
     while True:
         unique_id = str(uuid.uuid4())
@@ -118,52 +123,113 @@ async def generate_dewar_qrcode(dewar_id: int, db: Session = Depends(get_db)):
 
 def generate_label(dewar):
     buffer = BytesIO()
-    c = canvas.Canvas(buffer, pagesize=A5)
+    # Set page orientation to landscape
+    c = canvas.Canvas(buffer, pagesize=landscape(A5))
+
+    # Dimensions for the A5 landscape
+    page_width, page_height = landscape(A5)
+
+    # Path to the PNG logo
+    file_dir = os.path.dirname(os.path.abspath(__file__))
+    png_logo_path = os.path.join(file_dir, "Heidi-logo.png")
 
-    # Draw header
+    # Open the logo with PIL to get its size
+    logo_image = Image.open(png_logo_path)
+    logo_aspect_ratio = logo_image.width / logo_image.height  # original aspect ratio
+
+    # Desired logo width in the PDF (you can adjust this size)
+    desired_logo_width = 4 * cm
+    desired_logo_height = desired_logo_width / logo_aspect_ratio  # maintain aspect ratio
+
+    # Draw header text
     c.setFont("Helvetica-Bold", 16)
-    c.drawCentredString(10.5 * cm, 14 * cm, "COMPANY LOGO / TITLE")
+    c.drawString(2 * cm, page_height - 2 * cm, "Paul Scherrer Institut")
+
+    # Draw the Heidi logo with preserved aspect ratio
+    c.drawImage(png_logo_path, page_width - desired_logo_width - 2 * cm,
+                page_height - desired_logo_height - 2 * cm,
+                width=desired_logo_width, height=desired_logo_height, mask='auto')
 
     # Draw details section
     c.setFont("Helvetica", 12)
-    c.drawString(2 * cm, 12.5 * cm, f"Dewar Name: {dewar.dewar_name}")
-    c.drawString(2 * cm, 11.5 * cm, f"Unique ID: {dewar.unique_id}")
-    if dewar.dewar_type:
-        c.drawString(2 * cm, 10.5 * cm, f"Dewar Type: {dewar.dewar_type.dewar_type}")
-    else:
-        c.drawString(2 * cm, 10.5 * cm, "Dewar Type: Unknown")
-    c.drawString(2 * cm, 9.5 * cm, "Beamtime Information: Placeholder")
+
+    y_position = page_height - 4 * cm  # Adjusted to ensure text doesn't overlap with the logo
+    line_height = 0.8 * cm
+
+    if dewar.shipment:
+        c.drawString(2 * cm, y_position, f"Shipment Name: {dewar.shipment.shipment_name}")
+        y_position -= line_height
+
+        c.drawString(2 * cm, y_position, f"Dewar Name: {dewar.dewar_name}")
+        y_position -= line_height
+
+    c.drawString(2 * cm, y_position, f"Unique ID: {dewar.unique_id}")
+    y_position -= line_height
+
+    if dewar.contact_person:
+        contact_person = dewar.contact_person
+        c.drawString(2 * cm, y_position, f"Contact: {contact_person.firstname} {contact_person.lastname}")
+        y_position -= line_height
+        c.drawString(2 * cm, y_position, f"Email: {contact_person.email}")
+        y_position -= line_height
+        c.drawString(2 * cm, y_position, f"Phone: {contact_person.phone_number}")
+        y_position -= line_height
+
+    if dewar.return_address:
+        return_address = dewar.return_address
+        c.drawString(2 * cm, y_position, f"Return Address: {return_address.street}")
+        y_position -= line_height
+        c.drawString(2 * cm, y_position, f"City: {return_address.city}")
+        y_position -= line_height
+        c.drawString(2 * cm, y_position, f"Postal Code: {return_address.zipcode}")
+        y_position -= line_height
+        c.drawString(2 * cm, y_position, f"Country: {return_address.country}")
+        y_position -= line_height
+
+    c.drawString(2 * cm, y_position, f"Beamtime Information: Placeholder")
 
     # Generate QR code
-    qr = qrcode.QRCode(version=1, box_size=10, border=5)
+    qr = qrcode.QRCode(version=1, box_size=10, border=4)
     qr.add_data(dewar.unique_id)
     qr.make(fit=True)
-    img = qr.make_image(fill='black', back_color='white')
-    qr_io = BytesIO()
-    img.save(qr_io, format='PNG')
-    qr_io.seek(0)
-    qr_image = Image.open(qr_io)
+    qr_img = qr.make_image(fill='black', back_color='white').convert("RGBA")
+
+    # Save this QR code to a temporary file
+    with tempfile.NamedTemporaryFile(delete=False, suffix='.png') as temp_file:
+        qr_img.save(temp_file, format='PNG')
+        temp_file_path = temp_file.name
 
     # Add QR code to PDF
-    c.drawInlineImage(qr_image, 8 * cm, 5 * cm, width=4 * cm, height=4 * cm)
+    c.drawImage(temp_file_path, page_width - 6 * cm, 5 * cm, width=4 * cm, height=4 * cm)
 
     # Add footer text
     c.setFont("Helvetica", 10)
-    c.drawCentredString(10.5 * cm, 4 * cm, "Scan for more information")
+    c.drawCentredString(page_width / 2, 2 * cm, "Scan for more information")
 
     # Draw border
-    c.rect(1 * cm, 3 * cm, 18 * cm, 12 * cm)
+    c.setLineWidth(1)
+    c.rect(1 * cm, 1 * cm, page_width - 2 * cm, page_height - 2 * cm)  # Adjusted dimensions
 
     # Finalize the canvas
     c.showPage()
     c.save()
 
     buffer.seek(0)
+
+    # Cleanup temporary file
+    os.remove(temp_file_path)
+
     return buffer
 
 @router.get("/{dewar_id}/download-label", response_class=Response)
 async def download_dewar_label(dewar_id: int, db: Session = Depends(get_db)):
-    dewar = db.query(DewarModel).options(joinedload(DewarModel.dewar_type)).filter(DewarModel.id == dewar_id).first()
+    dewar = db.query(DewarModel).options(
+        joinedload(DewarModel.pucks).joinedload(PuckModel.samples),
+        joinedload(DewarModel.contact_person),
+        joinedload(DewarModel.return_address),
+        joinedload(DewarModel.shipment)
+    ).filter(DewarModel.id == dewar_id).first()
+
     if not dewar:
         raise HTTPException(status_code=404, detail="Dewar not found")
     if not dewar.unique_id:
@@ -220,7 +286,10 @@ def get_all_serial_numbers(db: Session = Depends(get_db)):
 @router.get("/{dewar_id}", response_model=DewarSchema)
 async def get_dewar(dewar_id: int, db: Session = Depends(get_db)):
     dewar = db.query(DewarModel).options(
-        joinedload(DewarModel.pucks).joinedload(PuckModel.samples)
+        joinedload(DewarModel.pucks).joinedload(PuckModel.samples),
+        joinedload(DewarModel.contact_person),
+        joinedload(DewarModel.return_address),
+        joinedload(DewarModel.shipment)
     ).filter(DewarModel.id == dewar_id).first()
 
     if not dewar:
@@ -252,4 +321,25 @@ async def delete_dewar(dewar_id: int, db: Session = Depends(get_db)):
 
     db.delete(dewar)
     db.commit()
-    return
\ No newline at end of file
+    return
+
+# New routes for shipments
+@router.get("/shipments", response_model=List[ShipmentSchema])
+async def get_all_shipments(db: Session = Depends(get_db)):
+    try:
+        shipments = get_shipments(db)
+        return shipments
+    except SQLAlchemyError as e:
+        logging.error(f"Database error occurred: {e}")
+        raise HTTPException(status_code=500, detail="Internal server error")
+
+@router.get("/shipments/{id}", response_model=ShipmentSchema)
+async def get_single_shipment(id: int, db: Session = Depends(get_db)):
+    try:
+        shipment = get_shipment_by_id(db, id)
+        if shipment is None:
+            raise HTTPException(status_code=404, detail="Shipment not found")
+        return shipment
+    except SQLAlchemyError as e:
+        logging.error(f"Database error occurred: {e}")
+        raise HTTPException(status_code=500, detail="Internal server error")
\ No newline at end of file

backend/app/routers/logistics.py

+from fastapi import APIRouter, HTTPException, Depends
+from sqlalchemy.orm import Session
+from datetime import datetime, timedelta
+from typing import List
+
+from app.models import Dewar as DewarModel, Slot as SlotModel, LogisticsEvent as LogisticsEventModel
+from app.schemas import LogisticsEventCreate, SlotCreate, Slot as SlotSchema
+from app.database import get_db
+
+router = APIRouter()
+
+@router.post("/scan-dewar")
+async def scan_dewar(event_data: LogisticsEventCreate, db: Session = Depends(get_db)):
+    dewar_qr_code = event_data.dewar_qr_code
+    location_qr_code = event_data.location_qr_code
+    transaction_type = event_data.transaction_type
+
+    dewar = db.query(DewarModel).filter(DewarModel.unique_id == dewar_qr_code).first()
+    if not dewar:
+        raise HTTPException(status_code=404, detail="Dewar not found")
+
+    if transaction_type == 'incoming':
+        slot = db.query(SlotModel).filter(SlotModel.id == location_qr_code).first()
+        if not slot or slot.occupied:
+            raise HTTPException(status_code=404, detail="Slot not found or already occupied")
+        slot.occupied = True
+        log_event(db, dewar.id, slot.id, 'incoming')
+
+    elif transaction_type == 'beamline':
+        log_event(db, dewar.id, None, 'beamline')
+
+    elif transaction_type == 'outgoing':
+        slot = db.query(SlotModel).filter(SlotModel.id == location_qr_code).first()
+        if not slot or not slot.occupied:
+            raise HTTPException(status_code=404, detail="Slot not found or not occupied")
+        slot.occupied = False
+        log_event(db, dewar.id, slot.id, 'outgoing')
+
+    elif transaction_type == 'release':
+        slot = db.query(SlotModel).filter(SlotModel.id == location_qr_code).first()
+        if not slot or not slot.occupied:
+            raise HTTPException(status_code=404, detail="Slot not found or not occupied")
+        slot.occupied = False
+        log_event(db, dewar.id, slot.id, 'released')
+
+    db.commit()
+    return {"message": "Status updated successfully"}
+
+def log_event(db: Session, dewar_id: int, slot_id: int, event_type: str):
+    new_event = LogisticsEventModel(dewar_id=dewar_id, slot_id=slot_id, event_type=event_type)
+    db.add(new_event)
+
+@router.get("/refill-status", response_model=List[SlotSchema])
+async def refill_status(db: Session = Depends(get_db)):
+    slots_needing_refill = db.query(SlotModel).filter(SlotModel.needs_refill == True).all()
+    result = []
+    current_time = datetime.utcnow()
+
+    for slot in slots_needing_refill:
+        time_until_next_refill = slot.last_refill + timedelta(hours=24) - current_time
+        result.append({
+            'slot_id': slot.id,
+            'needs_refill': slot.needs_refill,
+            'time_until_refill': str(time_until_next_refill)
+        })
+
+    return result
\ No newline at end of file

backend/app/schemas.py

 from typing import List, Optional
+from datetime import datetime, timedelta  # Add this import
 from pydantic import BaseModel, EmailStr, constr, Field
 from datetime import date
 
@@ -270,4 +271,23 @@ class ShipmentCreate(BaseModel):
 
 
 class UpdateShipmentComments(BaseModel):
-    comments: str
\ No newline at end of file
+    comments: str
+
+class LogisticsEventCreate(BaseModel):
+    dewar_qr_code: str
+    location_qr_code: str
+    transaction_type: str
+
+class SlotCreate(BaseModel):
+    id: int
+    needs_refill: bool
+    last_refill: datetime
+    occupied: bool
+
+class Slot(BaseModel):
+    slot_id: int
+    needs_refill: bool
+    time_until_refill: str
+
+    class Config:
+        from_attributes = True
\ No newline at end of file