from typing import List
from pydantic import BaseModel, Field
from sqlalchemy.orm import Mapped, mapped_column, Session, relationship
from sqlalchemy import Integer, VARCHAR, Float, ForeignKey
from app.models.base_class import Base

class SalesBase(BaseModel):
    sales_id : int | None = Field(default=None)
    average_traffic_expected : int | None = Field(default=None)
    average_remark : str | None = Field(default=None)
    number_of_transaction_per_month : int | None = Field(default=None)
    number_remark : str | None = Field(default=None)
    average_transaction_value : float | None = Field(default=None)
    transaction_remark : str | None = Field(default=None)
    cogs : float | None = Field(default=None)
    cogs_remark : str | None = Field(default=None)
    group_id : int | None = Field(default=None)

class TblSales(Base):
    __tablename__ = "tbl_sales"
    sales_id : Mapped[int] = mapped_column("sales_id", Integer, primary_key=True, autoincrement=True)
    average_traffic_expected : Mapped[int] = mapped_column("average_traffic_expected", Integer)
    average_remark : Mapped[str] = mapped_column("average_remark", VARCHAR(255))
    number_of_transaction_per_month : Mapped[int] = mapped_column("number_of_transaction_per_month", Integer)
    number_remark : Mapped[str] = mapped_column("number_remark", VARCHAR(255))
    average_transaction_value : Mapped[float] = mapped_column("average_transaction_value", Float)
    transaction_remark : Mapped[str] = mapped_column("transaction_remark", VARCHAR(255))
    cogs : Mapped[float] = mapped_column("cogs", Float)
    cogs_remark : Mapped[str] = mapped_column("cogs_remark", VARCHAR(255))
    # is_delete : Mapped[int] = mapped_column("is_delete", Integer, default=0)
    group_id : Mapped[int] = mapped_column("group_id", ForeignKey("tbl_group.group_id"))
    
    group = relationship("TblGroup", back_populates="sales")
    
    @classmethod
    def create_sales(cls, data:SalesBase, db:Session) ->"TblSales":
        # data_dict = [data1.model_dump() for data1 in data]
        # data_dict = data.model_dump()
        new_data = cls(**data.model_dump())
        db.add(new_data)
        db.flush()
        return new_data
    # @classmethod
    # def create_sales(cls, data: SalesBase, db: Session) -> "TblSales":
    #     """Insert a single SalesBase into DB"""
    #     new_data = cls(**data.model_dump())
    #     db.add(new_data)
    #     db.flush()
    #     return new_data
    
    @classmethod
    def get_sales(cls, group_id:int, db:Session) ->"TblSales":
        get_data = db.query(cls).filter(cls.group_id == group_id).all()
        return get_data
    
    @classmethod
    def update_sales(cls, update_id:int, data:SalesBase, db:Session) ->"TblSales":
        update_data = db.query(cls).filter(cls.sales_id == update_id).first()
        data_dict = data.model_dump()
        for key, value in data_dict.items():
            if value is not None:
                setattr(update_data, key, value)
        db.commit()
        db.refresh(update_data)
        return update_data
    
    @classmethod
    def delete_sales(cls, sales_id:int, db:Session) ->"TblSales":
        delete_data = db.query(cls).filter(cls.sales_id == sales_id).first()
        if not delete_data:
            return False
        db.delete(delete_data)
        db.commit()
        return True
    
    # @classmethod
    # def delete_sales(cls, sales_id:int, db:Session) ->"TblSales":
    #     delete_data = db.query(cls).filter(cls.sales_id == sales_id).first()
    #     if not delete_data:
    #         return False
    #     delete_data.is_delete = 1
    #     db.commit()
    #     return True