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

class VisualMerchElementsBase(BaseModel):
    
    visual_id : int | None = Field(default=None)
    type : str | None = Field(default=None)
    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)
    internal_display_remark : str | None = Field(default=None)
    external_display_remark : str | None = Field(default=None)
    Frequency_change_per_year : int | None = Field(default=None)
    Frequency_change_per_year_remark : str | None = Field(default=None)
    group_id : int | None = Field(default=None)
    
class TblVisualMerchElements(Base):
    
    __tablename__ = "tbl_visual_merch_elements"
    
    visual_id : Mapped[int] = mapped_column("visual_id", Integer, primary_key=True, autoincrement=True)
    type : Mapped[str] = mapped_column("type", VARCHAR(255), nullable=True, server_default=None)
    units : Mapped[int] = mapped_column("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)
    internal_display_remark : Mapped[str] = mapped_column("internal_display_remark", VARCHAR(255), nullable=True, server_default=None)
    external_display_remark : Mapped[str] = mapped_column("external_display_remark", VARCHAR(255), nullable=True, server_default=None)
    Frequency_change_per_year : Mapped[int] = mapped_column("Frequency_change_per_year", Integer, nullable=True, server_default=None)
    Frequency_change_per_year_remark : Mapped[str] = mapped_column("Frequency_change_per_year_remark", VARCHAR(255), nullable=True, server_default=None)
    group_id : Mapped[int] = mapped_column("group_id", Integer, ForeignKey("tbl_group.group_id"), nullable=False)
    
    group = relationship("TblGroup", back_populates="visual_merchandising_elements")
    
    @classmethod
    def create(cls, data:VisualMerchElementsBase, db:Session) ->"TblVisualMerchElements":
        data_dict = data.model_dump()
        new_data = cls(**data_dict)
        db.add(new_data)
        db.flush()
        return new_data
    
    @classmethod
    def get_visual_merch_elements_data_id(cls, visual_get_id:int, db:Session) ->"TblVisualMerchElements":
        get_data = db.query(cls).filter(cls.visual_id == visual_get_id).first()
        return get_data
    
    @classmethod
    def update_visual_merch_elements_id(cls, visual_update_id:int, data:VisualMerchElementsBase, db:Session) ->"TblVisualMerchElements":
        update_data = db.query(cls).filter(cls.visual_id == visual_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_visual_merch_elements_id(cls, visual_delete_id:int, db:Session) ->"TblVisualMerchElements":
        delete_data = db.query(cls).filter(cls.visual_id == visual_delete_id).first()
        if not delete_data:
            return False
        db.delete(delete_data)
        db.commit()
        return True