from abc import ABC, abstractmethod

from sqlalchemy.ext.asyncio import AsyncSession

from external.marketplace.base import BaseMarketplaceApi
from models import Product, ProductBarcode, ProductImage


class BaseProductSynchronizer(ABC):
    products: list[Product] = []
    barcodes: list[ProductBarcode] = []
    images: list[ProductImage] = []
    marketplace_products: list = []
    api: BaseMarketplaceApi
    session: AsyncSession

    def __init__(self, session, marketplace, api):
        self.session = session
        self.marketplace = marketplace
        self.api = api
        self._clear()

    def _clear(self):
        self.products = []
        self.barcodes = []
        self.images = []
        self.marketplace_products = []

    async def _write(self):
        instances = self.products + self.marketplace_products + self.barcodes + self.images
        self.session.add_all(instances)
        await self.session.commit()

    @abstractmethod
    async def create_products(self):
        pass

    @abstractmethod
    async def synchronize_products(self):
        pass