from fastapi import APIRouter, Depends, HTTPException, status
from sqlalchemy.orm import Session
from app.auth.dependencies import get_current_user
from app.database import get_db
from app.models.location import Location
from app.models.user import User
from app.schemas.location import LocationCreate, LocationUpdate, LocationOut

router = APIRouter(prefix="/locations", tags=["locations"])


@router.get("", response_model=list[LocationOut])
def list_locations(db: Session = Depends(get_db), current_user: User = Depends(get_current_user)):
    return db.query(Location).filter(
        (Location.user_id == current_user.id) | (Location.user_id == None)
    ).order_by(Location.name).all()


@router.post("", response_model=LocationOut, status_code=status.HTTP_201_CREATED)
def create_location(body: LocationCreate, db: Session = Depends(get_db), current_user: User = Depends(get_current_user)):
    obj = Location(**body.model_dump(), user_id=current_user.id)
    db.add(obj)
    db.commit()
    db.refresh(obj)
    return obj


@router.patch("/{location_id}", response_model=LocationOut)
def update_location(
    location_id: int, body: LocationUpdate,
    db: Session = Depends(get_db), current_user: User = Depends(get_current_user)
):
    obj = db.get(Location, location_id)
    if not obj or (obj.user_id and obj.user_id != current_user.id and current_user.role.name != "admin"):
        raise HTTPException(status_code=404, detail="Location not found")
    for field, value in body.model_dump(exclude_none=True).items():
        setattr(obj, field, value)
    db.commit()
    db.refresh(obj)
    return obj


@router.delete("/{location_id}", status_code=status.HTTP_204_NO_CONTENT)
def delete_location(location_id: int, db: Session = Depends(get_db), current_user: User = Depends(get_current_user)):
    obj = db.get(Location, location_id)
    if not obj or (obj.user_id and obj.user_id != current_user.id and current_user.role.name != "admin"):
        raise HTTPException(status_code=404, detail="Location not found")
    db.delete(obj)
    db.commit()