"""审计日志（最简）：id、actor_user_id、action、meta_json、created_at。"""
import uuid
from datetime import datetime

from sqlalchemy import String, DateTime, Text, ForeignKey
from sqlalchemy.dialects.postgresql import UUID, JSONB
from sqlalchemy.orm import Mapped, mapped_column

from app.models.base import Base


class AuditLog(Base):
    __tablename__ = "audit_logs"

    id: Mapped[uuid.UUID] = mapped_column(
        UUID(as_uuid=True), primary_key=True, default=uuid.uuid4
    )
    actor_user_id: Mapped[uuid.UUID | None] = mapped_column(
        UUID(as_uuid=True), ForeignKey("users.id", ondelete="SET NULL"), nullable=True, index=True
    )
    action: Mapped[str] = mapped_column(String(128), nullable=False, index=True)
    meta_json: Mapped[dict | None] = mapped_column(JSONB, nullable=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=datetime.utcnow)