"""站内通知模型"""
from __future__ import annotations

from datetime import datetime
from typing import Optional

from sqlalchemy import BigInteger, Boolean, ForeignKey, Integer, TIMESTAMP, TEXT, VARCHAR
from sqlalchemy.orm import Mapped, mapped_column

from .base import Base
from .types import JSONB


class Notification(Base):
    __tablename__ = "notifications"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    user_id: Mapped[int] = mapped_column(
        BigInteger, ForeignKey("users.id"), nullable=False, index=True
    )
    category: Mapped[str] = mapped_column(VARCHAR(50), nullable=False, default="system", index=True)
    title: Mapped[str] = mapped_column(VARCHAR(200), nullable=False)
    content: Mapped[Optional[str]] = mapped_column(TEXT, nullable=True)
    source: Mapped[Optional[str]] = mapped_column(VARCHAR(50), nullable=True, index=True)
    entity_type: Mapped[Optional[str]] = mapped_column(VARCHAR(50), nullable=True, index=True)
    entity_id: Mapped[Optional[int]] = mapped_column(BigInteger, nullable=True, index=True)
    target_url: Mapped[Optional[str]] = mapped_column(VARCHAR(500), nullable=True)
    kind: Mapped[Optional[str]] = mapped_column(VARCHAR(30), nullable=True, index=True)
    priority: Mapped[Optional[str]] = mapped_column(VARCHAR(20), nullable=True, index=True)
    status: Mapped[Optional[str]] = mapped_column(VARCHAR(30), nullable=True, index=True)
    blocking_reason: Mapped[Optional[str]] = mapped_column(TEXT, nullable=True)
    recommended_action: Mapped[Optional[str]] = mapped_column(VARCHAR(80), nullable=True)
    dedupe_key: Mapped[Optional[str]] = mapped_column(VARCHAR(255), nullable=True, index=True)
    occurrence_count: Mapped[int] = mapped_column(Integer, nullable=False, default=1)
    payload: Mapped[Optional[dict]] = mapped_column(JSONB, nullable=True)
    is_read: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False, index=True)
    read_at: Mapped[Optional[datetime]] = mapped_column(TIMESTAMP, nullable=True)