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


class VendorScorecardBase(BaseModel):
    vendor_scorecard_id : int | None = Field(default=None)
    metric : str | None = Field(default=None)
    weightage : float | None = Field(default=None)
    importance : str | None = Field(default=None)
    batna : str | None = Field(default=None)
    group_id : int | None = Field(default=None)

class  TblVendorScorecard(Base):
    __tablename__ = "tbl_vendor_scorecard"
    
    vendor_scorecard_id : Mapped[int] = mapped_column("vendor_scorecard_id", Integer, primary_key=True, autoincrement=True)
    metric : Mapped[str] = mapped_column("metric", VARCHAR(255), nullable=True, server_default=None)
    weightage : Mapped[Float] = mapped_column("weightage", Float, nullable=True, server_default=None)
    importance : Mapped[str] = mapped_column(Enum("Low", "Medium", "High"))
    batna : Mapped[str] = mapped_column("batna", VARCHAR(255), nullable=True, server_default=None)
    group_id : Mapped[int] = mapped_column("group_id", Integer, ForeignKey("tbl_group.group_id"))
    
    group = relationship("TblGroup", back_populates="vendor_scorecard")
    
    @classmethod
    def create_vendor_scorecard(cls, data:VendorScorecardBase, db:Session) ->"TblVendorScorecard":
        data_dict = data.model_dump()
        new_data = cls(**data_dict)
        db.add(new_data)
        db.flush()
        return new_data
    @classmethod
    def get_vendor_scorecard(cls, vendor_get_id:int, db:Session) ->"TblVendorScorecard":
        get_data = db.query(cls).filter(cls.vendor_scorecard_id == vendor_get_id).first()
        return get_data
    
    @classmethod
    def update_vendor_scorecord(cls, vendor_update_id:int, data:VendorScorecardBase, db:Session) ->"TblVendorScorecard":
        update_data = db.query(cls).filter(cls.vendor_scorecard_id == vendor_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 deletee_vendore_scorecard(cls, group_id:int, db:Session) ->"TblVendorScorecard":
        delete_data = db.query(cls).filter(cls.group_id == group_id).all()
        if not delete_data:
            return False
        for delete in delete_data:
            db.delete(delete)
            db.commit()
        return True