from datetime import datetime

from sqlalchemy import DateTime
from sqlalchemy.orm import Mapped, mapped_column

from app.core.utils.time import utc_now


class TimestampMixin:
    created_at: Mapped[datetime] = mapped_column(DateTime, default=utc_now)
    updated_at: Mapped[datetime] = mapped_column(
        DateTime, default=utc_now, onupdate=utc_now
    )