from datetime import datetime

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

from app.database import Base


class NotificationCooldown(Base):
    """Последняя отправка оповещения по ключу (dedup_key / fingerprint)."""

    __tablename__ = "notification_cooldown"

    cooldown_key: Mapped[str] = mapped_column(String(512), primary_key=True)
    kind: Mapped[str] = mapped_column(String(16))  # event | problem
    last_notified_at: Mapped[datetime] = mapped_column(DateTime(timezone=True))