from pydantic import BaseModel, Field
from fastapi import HTTPException
from sqlalchemy.orm import Mapped,mapped_column, relationship, Session
from sqlalchemy import VARCHAR, Enum, ForeignKey, Integer, Text
from app.api.competitor_intensity.schema import CompetitorIntensityUpdate
from app.models.base_class import Base

class CompetitorIntensityBase(BaseModel):
    
    competitor_id : int | None = Field(default=None)
    upload_image : str | None = Field(default=None)
    total_square_footage : str | None = Field(default=None)
    assumptions : str | None = Field(default=None)
    group_id : int | None = Field(default=None)
    

class TblCompetitorIntensity(Base):
    __tablename__ = "tbl_competitor_intensity"
    
    competitor_id : Mapped[int] = mapped_column("competitor_id", Integer, autoincrement=True, primary_key=True)
    upload_image : Mapped[str] = mapped_column("upload_image", VARCHAR(100), nullable=True, server_default=None)
    total_square_footage : Mapped[str] = mapped_column("total_square_footage", Enum("Low", "Medium", "High"))
    assumptions : Mapped[str] = mapped_column("assumptions", Text, nullable=True, server_default=None)
    group_id : Mapped[int] = mapped_column("group_id", Integer, ForeignKey("tbl_group.group_id"))
    
    group = relationship("TblGroup", back_populates="competitor_intensity")
    
    @classmethod
    def create_competitor(cls, data:CompetitorIntensityBase, db:Session) ->"TblCompetitorIntensity":
        data_dict = cls(**data.model_dump())
        db.add(data_dict)
        db.flush()
        return data_dict
    
    @classmethod
    def get_competitor(cls, group_id:int, db:Session) ->"TblCompetitorIntensity":
        get_data = db.query(cls).filter(cls.group_id == group_id).all()
        return get_data
    
    @classmethod
    def update_competitor(cls, competitor_id:int, data:CompetitorIntensityBase, db:Session) ->"TblCompetitorIntensity":
        update_data = db.query(cls).filter(cls.competitor_id == competitor_id).first()
        if not update_data:
            raise HTTPException(status_code=404, detail="Update ID not found")
        data_dict = data.model_dump()
        for key, value in data_dict.items():
            if value is not None:
                setattr(update_data, key, value)
        db.add(update_data)
        db.refresh(update_data)
        return update_data
    
    
    @classmethod
    def delete_competitor(cls, competitor_id:int, db:Session) ->"TblCompetitorIntensity":
        delete_data = db.query(cls).filter(cls.competitor_id == competitor_id).first()
        if not delete_data:
            return False
        db.delete(delete_data)
        db.commit()
        return True