"""event_log 事件日志表 ORM（事件双写落库，Pub/Sub 仅作实时通知，消费以 event_id 幂等）。"""
from __future__ import annotations

from datetime import datetime
from typing import Any

from sqlalchemy import BigInteger, DateTime, JSON, String, func
from sqlalchemy.orm import Mapped, mapped_column

from model.base import Base


class EventLog(Base):
    __tablename__ = "event_log"
    __table_args__ = {"comment": "事件日志表（事件双写落库，Pub/Sub 仅作实时通知，消费幂等）"}

    id: Mapped[int] = mapped_column(BigInteger, primary_key=True, autoincrement=True)
    event_id: Mapped[str] = mapped_column(String(64), unique=True)
    event_name: Mapped[str] = mapped_column(String(64))
    payload: Mapped[dict[str, Any] | None] = mapped_column(JSON)
    trace_id: Mapped[str | None] = mapped_column(String(64))
    status: Mapped[str] = mapped_column(String(16), server_default="pending")
    create_time: Mapped[datetime] = mapped_column(DateTime, server_default=func.now())
    consume_time: Mapped[datetime | None] = mapped_column(DateTime)