from typing import Optional, TYPE_CHECKING
from uuid import UUID, uuid4

from sqlmodel import Field, Relationship, SQLModel

if TYPE_CHECKING:
    from backend.app.models.house import House
    from backend.app.models.user import User


class Owner(SQLModel, table=True):
    id: UUID = Field(default_factory=uuid4, primary_key=True)
    user_id: UUID = Field(foreign_key="user.id", unique=True)
    
    # Relationship
    houses: list["House"] = Relationship(back_populates="owner")
    user: Optional["User"] = Relationship(back_populates="owner")