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

class CarpentryBase(BaseModel):
    __tablename__="tbl_carpentry"
    
    carpentry_id : int | None = Field(default=None)
    formate_type : str | None = Field(default=None)
    type_of_feature : int | None = Field(default=None)
    store_formate_type : Literal["Store Formate A", "Store Formate B"] = "Store Formate A"
    number_of_units : int | None = Field(default=None)
    cost_per_unit : int | None = Field(default=None)
    total : int | None = Field(default=None)
    remark : str | None = Field(default=None)
    group_id : int | None = Field(default=None)
    

class TblCarpentry(Base):
    __tablename__="tbl_carpentry"
    
    carpentry_id : Mapped[int] = mapped_column("carpentry_id", Integer, primary_key=True, autoincrement=True)
    formate_type : Mapped[str] = mapped_column("formate_type", VARCHAR(255), nullable=True, server_default=None)
    type_of_feature : Mapped[str] = mapped_column("type_of_feature", VARCHAR(255), nullable=True, server_default=None)
    store_formate_type : Mapped[str] = mapped_column(Enum("Store Formate A", "Store Formate B"))
    number_of_units : Mapped[int] = mapped_column("number_of_units", Integer, nullable=True, server_default=None)
    cost_per_unit : Mapped[int] = mapped_column("cost_per_unit", Integer, nullable=True, server_default=None)
    total : Mapped[int] = mapped_column("total", Integer, nullable=True, server_default=None)
    remark : Mapped[str] = mapped_column("remark", VARCHAR(255), nullable=True, server_default=None)
    group_id: Mapped[int] = mapped_column(Integer, ForeignKey("tbl_group.group_id"), nullable=False)
    
    group = relationship("TblGroup", back_populates="carpentry")
    
    
    @classmethod
    def create(cls, data: CarpentryBase, db: Session) ->"TblCarpentry":
        data_dict = data.model_dump()
        new_data = cls(**data_dict)
        db.add(new_data)
        db.flush()
        return new_data
    
    @classmethod
    def get_by_carpentry(cls, group_id: int, db: Session) ->"TblCarpentry":
        get_data = db.query(cls).filter(cls.group_id == group_id).all()
        return get_data
    
    @classmethod
    def update_carpentry(cls, carpentry_update_id: int, data: CarpentryBase, db: Session) ->"TblCarpentry":
        update_data = db.query(cls).filter(cls.carpentry_id == carpentry_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)