from datetime import datetime

from sqlalchemy.orm import Mapped, mapped_column


class IdMixin:
    id: Mapped[int] = mapped_column(primary_key=True)


class SoftDeleteMixin:
    is_deleted: Mapped[bool] = mapped_column(
        default=False,
        nullable=False,
    )


class CreatedAtMixin:
    created_at: Mapped[datetime] = mapped_column(nullable=False)