import uuid

from fastapi import APIRouter, HTTPException, status, Depends, Security
from sqlalchemy.exc import SQLAlchemyError
from sqlalchemy.orm import Session

from . import do_update_settlements
from ...schemas.auth import UserToken
from ...core.security import get_current_active_user as get_user
from ...db.session import SessionLocal
from ...models import Voucher, VoucherType, SettleOption, Overview
from barker.schemas.receive_payment import ReceivePaymentItem as SettleSchema

router = APIRouter()


# Dependency
def get_db():
    try:
        db = SessionLocal()
        yield db
    finally:
        db.close()


@router.post("/void-bill/{id_}")
def update(
    id_: uuid.UUID,
    u: bool,  # Update table?
    reason: str,
    db: Session = Depends(get_db),
    user: UserToken = Security(get_user, scopes=["void-bill"]),
):
    try:
        item: Voucher = db.query(Voucher).filter(Voucher.id == id_).first()

        item.void = True
        item.reason = reason
        item.voucher_type = VoucherType.VOID

        do_update_settlements(item, [SettleSchema(id=SettleOption.VOID(), amount=round(item.amount))], db)

        if u:  # Update table
            db.query(Overview).filter(Overview.voucher_id == item.id).delete()
        db.commit()
        return True
    except SQLAlchemyError as e:
        db.rollback()
        raise HTTPException(
            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR, detail=str(e),
        )
    except Exception:
        db.rollback()
        raise