import json

from sqlalchemy.ext.asyncio import AsyncSession

from app.models.audit_log import AuditLog


async def log_action(
    db: AsyncSession,
    operator_id: int,
    action: str,
    target_type: str,
    target_id: int | None = None,
    detail: dict | str | None = None,
) -> AuditLog:
    detail_str = None
    if detail is not None:
        detail_str = json.dumps(detail, ensure_ascii=False) if isinstance(detail, dict) else str(detail)

    entry = AuditLog(
        operator_id=operator_id,
        action=action,
        target_type=target_type,
        target_id=target_id,
        detail=detail_str,
    )
    db.add(entry)
    await db.flush()
    return entry