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

class ElectricalCablingBase(BaseModel):
    electrical_id : int | None = Field(default=None)
    feature_type : str | None = Field(default=None)
    number_tonnes : int | None = Field(default=None)
    havs_rate_unit : float | None = Field(default=None)
    cost_unit : int | None = Field(default=None)
    lighting_type : str | None = Field(default=None)
    rate_unit : int | None = Field(default=None)
    remark : str | None = Field(default=None)
    store_format_type : str | None = Field(default=None)
    choice : str | None = Field(default=None)
    total : float | None = Field(default=None)
    group_id : int | None = Field(default=None)

class TblElectricalCabling(Base):
    __tablename__ = "tbl_electrical_cabling"
    electrical_id : Mapped[int] = mapped_column("electrical_id", Integer, primary_key=True, autoincrement=True)
    feature_type : Mapped[str] = mapped_column("feature_type", VARCHAR(255), nullable=True, server_default=None)
    number_tonnes : Mapped[int] = mapped_column("number_tonnes", Integer, nullable=True, server_default=None)
    havs_rate_unit : Mapped[float] = mapped_column("havs_rate_unit", Float, nullable=True, server_default=None)
    cost_unit : Mapped[str] = mapped_column("cost_unit", Integer, nullable=True, server_default=None)
    lighting_type : Mapped[str] = mapped_column("lighting_type", VARCHAR(255), nullable=True, server_default=None)
    rate_unit : Mapped[int] = mapped_column("rate_unit", Integer, nullable=True, server_default=None)
    remark : Mapped[str] = mapped_column("remark", VARCHAR(255), nullable=True, server_default=None)
    store_format_type : Mapped[str] = mapped_column("store_format_type", Enum("Store Format A","Store Format B"))
    choice : Mapped[str] = mapped_column("choice", Enum("Unit Price","Rate per SQFT"))
    total : Mapped[float] = mapped_column("total", Float, nullable=True, server_default=None)
    group_id : Mapped[int] = mapped_column("group_id", Integer, ForeignKey("tbl_group.group_id"))
    
    group = relationship("TblGroup", back_populates="electrical_cabling")
    
    @classmethod
    def create_electrical_cabling(cls, data:ElectricalCablingBase, db:Session) ->"TblElectricalCabling":
        data_dict = cls(**data.model_dump())
        db.add(data_dict)
        db.flush()
        return data_dict
    
    @classmethod 
    def get_electrical_cabling(cls, group_id:int, db:Session) ->"TblElectricalCabling":
        get_data = db.query(cls).filter(cls.group_id == group_id).all()
        return get_data
    
    @classmethod
    def update_electrical_cabling(cls, update_id:int, data:ElectricalCablingBase, db:Session) ->"TblElectricalCabling":
        update_data = db.query(cls).filter(cls.electrical_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_electrical_cabling(cls, electrical_id:int, db:Session) ->"TblElectricalCabling":
        delete_data = db.query(cls).filter(cls.electrical_id == electrical_id).first()
        if not delete_data:
            return False
        db.delete(delete_data)
        db.commit()
        return delete_data