"""
自定义异常处理
通过restformwork 的setting配置引用  REST_FRAMEWORK --> EXCEPTION_HANDLER
"""

from rest_framework.views import exception_handler
from rest_framework.views import Response
from rest_framework import status
from rest_framework.exceptions import ValidationError, ErrorDetail


def custom_exception_handler(exc, context):
    response = exception_handler(exc, context)
    if response is None:
        return Response({
            'code': status.HTTP_500_INTERNAL_SERVER_ERROR,
            'msg': '{exc}'.format(exc=exc),
            'data': ''
        }, status=status.HTTP_500_INTERNAL_SERVER_ERROR, exception=True)

    else:
        msg = '{exc}'.format(exc=exc)
        if isinstance(exc, ValidationError):
            for key, value in exc.get_full_details().items():
                if value and isinstance(value, list):
                    value = value[0]["message"]
                    if isinstance(value, ErrorDetail):
                        msg = f"{key} {value}"

        return Response({
            'code': response.status_code,
            'msg': msg,
            'data': ''
        }, status=200, exception=True)