from fastapi import APIRouter, Depends, HTTPException
from sqlalchemy.orm import Session
from app.schemas.guests import GuestCreate, GuestUpdate, GuestRead
from app.crud.guest import guest_crud
from typing import List
import uuid

from app.core.database import get_db
from app.models import GuestStatus

router = APIRouter()


@router.post("/", response_model=GuestRead, operation_id="create_guest")
def create_guest(guest_in: GuestCreate, db: Session = Depends(get_db)):
    if guest_in.invitation_code:
        existing_guest = guest_crud.get_by_invitation_code(db, guest_in.invitation_code)
        if existing_guest:
            raise HTTPException(
                status_code=400, detail="Guest with this invitation code already exists"
            )
    else:
        guest_in.invitation_code = str(uuid.uuid4())[:8]
    guest = guest_crud.create(db, obj_in=guest_in)
    return guest


@router.get("/{guest_id}", response_model=GuestRead, operation_id="get_guest")
def read_guest(guest_id: uuid.UUID, db: Session = Depends(get_db)):
    guest = guest_crud.get(db, guest_id)
    if not guest:
        raise HTTPException(status_code=404, detail="Guest not found")
    return guest


@router.get("/", response_model=List[GuestRead], operation_id="get_guests")
def read_guests(skip: int = 0, limit: int = 100, db: Session = Depends(get_db)):
    guests = guest_crud.get_multi(db, skip=skip, limit=limit)
    return guests


@router.put("/{guest_id}", response_model=GuestRead, operation_id="update_guest")
def update_guest(guest_id: uuid.UUID, guest_in: GuestUpdate, db: Session = Depends(get_db)):
    guest = guest_crud.get(db, guest_id)
    if not guest:
        raise HTTPException(status_code=404, detail="Guest not found")
    guest = guest_crud.update(db, db_obj=guest, obj_in=guest_in)
    return guest


@router.delete("/{guest_id}", response_model=GuestRead, operation_id="delete_guest")
def delete_guest(guest_id: uuid.UUID, db: Session = Depends(get_db)):
    guest = guest_crud.get(db, guest_id)
    if not guest:
        raise HTTPException(status_code=404, detail="Guest not found")
    guest = guest_crud.remove(db, guest_id=str(guest_id))
    return guest


@router.patch("/{guest_id}/status", response_model=GuestRead)
def set_guest_status(guest_id: uuid.UUID, status: GuestStatus, db: Session = Depends(get_db)):
    guest = guest_crud.update_status(db, guest_id=guest_id, status=status)
    if not guest:
        raise HTTPException(status_code=404, detail="Guest not found")
    return guest