# -*- coding: utf-8 -*-
"""
DRF 自定义异常处理器：统一错误响应格式。
"""
from rest_framework.views import exception_handler
from rest_framework.response import Response


def custom_exception_handler(exc, context):
    response = exception_handler(exc, context)
    if response is not None:
        # 统一格式：{"detail": "..."}
        if isinstance(response.data, list):
            response.data = {"detail": response.data[0] if response.data else str(exc)}
        elif isinstance(response.data, dict) and "detail" not in response.data:
            response.data = {"detail": str(response.data)}
    return response