from sqlalchemy.ext.asyncio import AsyncSession

from modules.fulfillment_base.models import DealProduct
from modules.fulfillment_base.repositories import DealProductRepository
from modules.fulfillment_base.schemas.deal_product import *
from services.mixins import ServiceGetAllMixin


class DealProductService(ServiceGetAllMixin[DealProduct, DealProductSchema]):
    schema_class = DealProductSchema

    def __init__(self, session: AsyncSession):
        self.repository = DealProductRepository(session)

    async def create(
        self, request: CreateDealProductRequest
    ) -> CreateDealProductResponse:
        await self.repository.create(request.entity)
        deal_product = await self.repository.get_by_id(
            request.entity.deal_id, request.entity.product_id
        )
        return CreateDealProductResponse(
            entity=DealProductSchema.model_validate(deal_product),
            message="Товар добавлен в сделку",
        )

    async def update(
        self, deal_id: int, product_id: int, data: UpdateDealProductRequest
    ) -> UpdateDealProductResponse:
        entity = await self.repository.get_by_id(deal_id, product_id)
        await self.repository.update(entity, data.entity)
        return UpdateDealProductResponse(message="Товар сделки обновлен")

    async def delete(self, deal_id: int, product_id: int) -> DeleteDealProductResponse:
        entity = await self.repository.get_by_id(deal_id, product_id)
        await self.repository.delete(entity)
        return DeleteDealProductResponse(message="Товар удален из сделки")