from datetime import datetime

from sqlalchemy import DateTime, ForeignKey, Integer, String, Text, func
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.db.base import Base


class AuditLog(Base):
    __tablename__ = "audit_logs"

    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
    operator_id: Mapped[int] = mapped_column(
        Integer, ForeignKey("users.id"), nullable=False
    )
    action: Mapped[str] = mapped_column(String(100), nullable=False, index=True)
    target_type: Mapped[str] = mapped_column(String(50), nullable=False)
    target_id: Mapped[int | None] = mapped_column(Integer)
    detail: Mapped[str | None] = mapped_column(Text)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now()
    )

    operator = relationship("User", lazy="selectin")

    def __repr__(self) -> str:
        return f"<AuditLog {self.id} {self.action} by={self.operator_id}>"