from typing import List, Optional, TYPE_CHECKING
if TYPE_CHECKING:
    from .rooms import Room

from sqlalchemy import Identity, Integer, Unicode
from sqlalchemy.orm import Mapped, mapped_column, relationship

from . import db

class Area(db.Model):
    __tablename__ = 'Areas'

    id: Mapped[int] = mapped_column("ID", Integer, Identity(start=1, increment=1), primary_key=True)
    name: Mapped[Optional[str]] = mapped_column("Area", Unicode(255), nullable=True)

    rooms: Mapped[List['Room']] = relationship('Room', back_populates='area')

    def __repr__(self):
        return f"<Area(id={self.id}, name={repr(self.name)})>"
    
    def serialize(self):
        return {
            'id': self.id,
            'name': self.name
        }