import uuid

from fastapi import APIRouter, HTTPException, Security, status
from sqlalchemy import delete, select
from sqlalchemy.exc import SQLAlchemyError

from ...core.security import get_current_active_user as get_user
from ...db.session import SessionFuture
from ...models.overview import Overview
from ...models.settle_option import SettleOption
from ...models.voucher import Voucher
from ...models.voucher_type import VoucherType
from ...schemas.receive_payment import ReceivePaymentItem as SettleSchema
from ...schemas.user_token import UserToken
from . import do_update_bill_numbers, do_update_settlements


router = APIRouter()


@router.post("/cancel-bill/{id_}")
def cancel(
    id_: uuid.UUID,
    u: bool,  # Update table?
    reason: str,
    user: UserToken = Security(get_user, scopes=["void-bill"]),
):
    try:
        with SessionFuture() as db:
            item: Voucher = db.execute(select(Voucher).where(Voucher.id == id_)).scalar_one()
            item.reason = f"{reason}"
            item.voucher_type = VoucherType.CANCEL
            do_update_bill_numbers(item, db)
            do_update_settlements(item, [SettleSchema(id=SettleOption.CANCEL(), amount=round(item.amount))], db)

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