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

# class LocationDetailsBase(BaseModel):
#     details_id : int | None = Field(defualt=None)
#     trading_radius : int | None = Field(default=None)
#     trading_rational : str | None = Field(default=None)
#     adjacencies : str | None = Field(default=None)
#     adjacencies_rational  : str | None = Field(default=None)
#     location_characteristics : str | None = Field(default=None)
#     rational : str | None = Field(default=None)
#     details : dict | None = Field(default=None)
#     store_format_type : str | None = Field(default=None)
#     group_id : int | None = Field(default=None)

class LocationDetailsBase(BaseModel):
    details_id: Optional[int] = Field(default=None)   # fixed typo
    trading_radius: Optional[int] = Field(default=None)
    trading_rational: Optional[str] = Field(default=None)
    adjacencies: Optional[str] = Field(default=None)
    adjacencies_rational: Optional[str] = Field(default=None)
    location_characteristics: Optional[str] = Field(default=None)
    rational: Optional[str] = Field(default=None)
    details: Optional[dict] = Field(default=None)
    store_format_type: Optional[str] = Field(default=None)
    group_id: Optional[int] = Field(default=None)


class TblLocationDetails(Base):
    __tablename__ ="tbl_location_details"
    details_id : Mapped[int] = mapped_column("details_id", Integer, primary_key=True, autoincrement=True)
    trading_radius : Mapped[int] = mapped_column("trading_radius", Integer, nullable=True, server_default=None)
    trading_rational : Mapped[str] = mapped_column("trading_rational", VARCHAR(255), nullable=True, server_default=None)
    adjacencies : Mapped[str] = mapped_column("adjacencies", TEXT, nullable=True, server_default=None)
    adjacencies_rational : Mapped[str] = mapped_column("adjacencies_rational", VARCHAR(255), nullable=True, server_default=None)
    location_characteristics : Mapped[str] = mapped_column("location_characteristics", Enum("Corner Property","Highstreet","Mall"))
    corner_property_rational : Mapped[str] = mapped_column("corner_property_rational", VARCHAR(255), nullable=True, server_default=None)
    rational : Mapped[str] = mapped_column("rational", VARCHAR(255), nullable=True, server_default=None)
    details : Mapped[dict] = mapped_column("details", JSON, nullable=True, server_default=None)
    store_format_type : Mapped[str] = mapped_column("store_format_type", Enum("Store Format A", "Store Format B"))
    group_id : Mapped[int] = mapped_column("group_id", ForeignKey("tbl_group.group_id"))
    
    group = relationship("TblGroup", back_populates="location_details")
    
    @classmethod
    def create_location_details(cls, data:LocationDetailsBase, db:Session) ->"TblLocationDetails":
        new_data = data.model_dump()
        data_dict = cls(**new_data)
        db.add(data_dict)
        db.flush()
        return data_dict
    
    @classmethod
    def get_location_details(cls, group_id:int, db:Session) ->"TblLocationDetails":
        get_data = db.query(cls).filter(cls.group_id == group_id).all()
        return get_data
    
    @classmethod
    def update_location_details(cls, update_id:int, data:LocationDetailsBase, db:Session) ->"TblLocationDetails":
        update_data = db.query(cls).filter(cls.details_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_location_details(cls, details_id:int, db:Session) ->"TblLocationDetails":
        delete_data = db.query(cls).filter(cls.details_id == details_id).first()
        if not delete_data:
            return False
        db.delete(delete_data)
        db.commit()
        return delete_data