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

class ComparativeAnalysisBase(BaseModel):
    comparative_id : int | None = Field(default=None)
    attributes : str | None = Field(default=None) 
    own_brand_physical_store : str | None = Field(default=None) 
    own_brand_online_store : str | None = Field(default=None) 
    group_id : int | None = Field(default=None)

class TblComparativeAnalysis(Base):
    __tablename__ = "tbl_comparative_analysis"
    comparative_id : Mapped[int] = mapped_column("comparative_id", Integer, primary_key=True, autoincrement=True)
    # attributes : Mapped[str] = mapped_column("attributes", Enum("Attribute 1","Attribute 2"))
    attributes : Mapped[str] = mapped_column("attributes", VARCHAR(255), nullable=True, server_default=None)
    own_brand_physical_store : Mapped[str] = mapped_column("own_brand_physical_store", Text, nullable=True, server_default=None)
    own_brand_online_store : Mapped[str] = mapped_column("own_brand_online_store", Text, nullable=True, server_default=None)
    group_id : Mapped[int] = mapped_column("group_id", ForeignKey("tbl_group.group_id"))
    
    group = relationship("TblGroup", back_populates="comparative_analysis")
    
    @classmethod
    def create(cls, data:ComparativeAnalysisBase, db:Session) ->"TblComparativeAnalysis":
        create_data = cls(**data.model_dump())
        db.add(create_data)
        db.flush()
        return create_data
    
    @classmethod
    def get(cls, group_id:int, db:Session) ->"TblComparativeAnalysis":
        get_data = db.query(cls).filter(cls.group_id == group_id).all()
        return get_data
    
    @classmethod
    def update(cls, comparative_id:int, data:ComparativeAnalysisBase, db:Session) ->"TblComparativeAnalysis":
        update_data = db.query(cls).filter(cls.comparative_id == comparative_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(cls, comparative_id:int, db:Session) ->"TblComparativeAnalysis":
        delete_data = db.query(cls).filter(cls.comparative_id == comparative_id).first()
        if not delete_data:
            return False
        db.delete(delete_data)
        db.commit()
        return delete_data