from datetime import datetime

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

from app.db.base import Base


class AuditLog(Base):
    """审计日志模型：记录关键接口和安全相关元数据。"""

    __tablename__ = "audit_logs"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    user_id: Mapped[str | None] = mapped_column(String(128), index=True, comment="Django用户中心ID")
    tenant_id: Mapped[str | None] = mapped_column(String(128))
    session_id: Mapped[int | None] = mapped_column(Integer, index=True)
    action: Mapped[str] = mapped_column(String(64), nullable=False, index=True)
    resource_type: Mapped[str] = mapped_column(String(64), nullable=False)
    resource_id: Mapped[str | None] = mapped_column(String(128))
    request_id: Mapped[str | None] = mapped_column(String(128))
    ip_address: Mapped[str | None] = mapped_column(String(64))
    user_agent: Mapped[str | None] = mapped_column(String(512))
    metadata_: Mapped[dict | None] = mapped_column("metadata", JSON)
    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, index=True)