from typing import List
from sqlalchemy.orm import Session
from app.api.sales import schema
from app.dependency.authantication import JWTPayloadSchema
from app.models.main.sales import SalesBase, TblSales
from app.utils.schemas_utils import CustomResponse
from app.locale.messages import Messages
from fastapi import HTTPException

class SalesService:
    def __init__(self, db:Session, token:JWTPayloadSchema):
        self.db = db
        self.token = token
        
    # async def create_sales(self, request: List[schema.SalesCreate]):
    #     """Handle multiple sales creation"""
    #     # request is already a list of Pydantic models
    #     created_sales = []
    #     for item in request:
    #         sale = TblSales.create_sales(item, self.db)
    #         created_sales.append(sale)

    #     self.db.commit()
    #     return CustomResponse(status="1", message=Messages.SALES)
        
    async def create_sales(self, request:List[schema.SalesCreate]):
        # data = [item.model_dump() for item in request]
        # created_sales = [SalesBase.model_validate(item)for item in request]
        created_sales = []
        for item in request:
            sale = TblSales.create_sales(item, self.db)
            created_sales.append(sale)
        # TblSales.create_sales(created_sales, self.db)
        self.db.commit()
        return CustomResponse(status="1", message=Messages.SALES)
    
    async def get_sales(self, group_id:int):
        new_get_sales = TblSales.get_sales(group_id, self.db)
        if not new_get_sales:
            raise HTTPException(status_code=404, detail="Get group ID not found")
        return [schema.SalesResponse.model_validate(get_group) for get_group in new_get_sales]
    
    async def get_multiple(self, get_id:int) ->"TblSales":
        # get_multiple_data = self.db.query(TblSales.average_transaction_value * TblSales.number_of_transaction_per_month).label("table").filter(TblSales.sales_id == get_id).first()
        get_multiple_data = (
            self.db.query(
                (TblSales.average_transaction_value * TblSales.number_of_transaction_per_month).label("table")
            )
            .filter(TblSales.sales_id == get_id)
            .first()
        )
        if not get_multiple_data:
            raise HTTPException(status_code=404, detail="ID not found")
        # return get_multiple_data
        return {"total": get_multiple_data.table}
    
    async def update_sales(self, request:schema.SalesUpdate):
        updated_sales = SalesBase.model_validate(request.model_dump())
        if updated_sales.sales_id is None:
            return CustomResponse(status="-1", message=Messages.SALES_NOT)
        TblSales.update_sales(updated_sales.sales_id, updated_sales, self.db)
        return CustomResponse(status="1", message=Messages.SALES_UPDATE)
    
    async def delete_sales(self, group_id:List[int]):
        deleted_sales = TblSales.delete_sales(group_id, self.db)
        if not deleted_sales:
            return CustomResponse(status="-1", message=Messages.SALES_NOT)
        return CustomResponse(status="1", message=Messages.SALES_DELETE)