"""ORM model for in-app notifications."""

from __future__ import annotations

from datetime import UTC, datetime
from typing import Any

from sqlalchemy import Boolean, String, Text
from sqlalchemy.orm import Mapped, mapped_column

from deerflow.persistence.base import Base
from deerflow.persistence.types import BeijingDateTime, PortableJSON


class NotificationRow(Base):
    __tablename__ = "notifications"

    id: Mapped[str] = mapped_column(String(64), primary_key=True)
    user_id: Mapped[str] = mapped_column(String(64), nullable=False, index=True)
    type: Mapped[str] = mapped_column(String(64), nullable=False)
    title: Mapped[str] = mapped_column(String(256), nullable=False, default="")
    body: Mapped[str] = mapped_column(Text, nullable=False, default="")
    payload: Mapped[dict[str, Any]] = mapped_column(PortableJSON(), nullable=False, default=dict)
    read: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False, index=True)
    created_at: Mapped[datetime] = mapped_column(BeijingDateTime(), nullable=False, default=lambda: datetime.now(UTC), index=True)