import logging

from sqlalchemy.ext.asyncio import AsyncSession

from config import settings
from misc.pally import BillCreateResponse, Currency, PallyAPIError, PallyClient
from repositories import UserRepository
from repositories.bills import BillsRepository

logger = logging.getLogger(__name__)


class BillingService:
    def __init__(self, user_repository: UserRepository, bills_repository: BillsRepository) -> None:
        self.user_repository = user_repository
        self.bills_repository = bills_repository

    async def pally_initiate_payment(
        self,
        session: AsyncSession,
        pally_client: PallyClient,
        *,
        user_id: int,
        amount: int,
        currency: Currency | None = Currency.RUB,
    ) -> BillCreateResponse | None:
        db_bill = await self.bills_repository.create(session, creator_id=user_id, amount=amount)

        try:
            async with pally_client as pl:
                bill = await pl.bills.create(
                    db_bill.amount,
                    shop_id=settings.pally_shop_id,
                    order_id=db_bill.id,
                    currency_in=currency,
                )
        except PallyAPIError:
            logger.exception("caught an exception while trying to create a bill:")
            return None

        return bill