from datetime import datetime
from typing import TYPE_CHECKING

from sqlalchemy.orm import mapped_column, Mapped, relationship

from models import BaseModel

if TYPE_CHECKING:
    from board import Board


class Project(BaseModel):
    __tablename__ = "projects"

    id: Mapped[int] = mapped_column(primary_key=True)
    name: Mapped[str] = mapped_column(nullable=False)
    created_at: Mapped[datetime] = mapped_column(nullable=False)
    is_deleted: Mapped[bool] = mapped_column(default=False)

    boards: Mapped[list["Board"]] = relationship(
        "Board",
        back_populates="project",
        lazy="noload",
    )