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

class StoreFormatepricingStrategiesBase(BaseModel):
    store_id : int | None = Field(default=None)
    store_format_type : Literal["Store Format A", "Store Format B"]
    choose_a_pricing_strategies : Literal["Everyday Low Price", "High-Low", "Others"]
    rational : str | None = Field(default=None)
    specify_other_strategy : str | None = Field(default=None)
    group_id : int | None = Field(default=None)
        

class TblStoreFormatepricingStrategies(Base):
    __tablename__ = "tbl_store_formate_pricing_strategies"
    
    store_id : Mapped[int] = mapped_column("store_id", Integer, primary_key=True, autoincrement=True)
    store_format_type : Mapped[str] = mapped_column(Enum("Store Format A", "Store Format B"))
    choose_a_pricing_strategies : Mapped[str] = mapped_column(Enum("Everyday Low Price", "High-Low", "Others"))
    rational : Mapped[str] = mapped_column("rational", VARCHAR(255), nullable=True, server_default=None)
    specify_other_strategy : Mapped[str] = mapped_column("specify_other_strategy", VARCHAR(255), nullable=True, server_default=None)
    group_id : Mapped[int] = mapped_column("group_id", ForeignKey("tbl_group.group_id"))
    
    group = relationship("TblGroup", back_populates="store_formate_pricing_strategies")
    
    # @classmethod
    # def create_store_formate_pricing_strategies(cls, db:Session, data:StoreFormatepricingStrategiesBase) ->"TblStoreFormatepricingStrategies":
    #     data_dict = data.model_dump()
    #     new_data = cls(**data_dict)
    #     db.add(new_data)
    #     db.flush()
    #     return new_data
    @classmethod
    def create_stor_formate(cls, data:StoreFormatepricingStrategiesBase, db:Session) ->"TblStoreFormatepricingStrategies":
        data_dict = data.model_dump()
        new_data = cls(**data_dict)
        db.add(new_data)
        db.flush()
        return new_data
    
    @classmethod
    def get_store_formate_pricing_strategies(cls, store_get_id:int, db:Session) ->"TblStoreFormatepricingStrategies":
        get_data = db.query(cls).filter(cls.store_id == store_get_id).first()
        return get_data
    
    # @classmethod
    # def update_store_formate(cls, store_update_id:int, db:Session, data:StoreFormatepricingStrategiesBase) ->"TblStoreFormatepricingStrategies":
    #     update_data = db.query(cls).filter(cls.store_id == store_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 update_store_formate(cls, store_update_id:int, data:StoreFormatepricingStrategiesBase, db:Session) ->"TblStoreFormatepricingStrategies":
        update_data = db.query(cls).filter(cls.store_id == store_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_store_formate_pricing_strategies(cls, store_id:int, db:Session) ->"TblStoreFormatepricingStrategies":
        delete_data = db.query(cls).filter(cls.store_id == store_id).first()
        if not delete_data:
            return False
        db.delete(delete_data)
        db.commit()
        return True