from rest_framework.exceptions import ParseError, ValidationError
from django.shortcuts import render
from rest_framework.views import APIView
from rest_framework.response import Response
from rest_framework import status
from django.contrib.auth import authenticate, login, logout
from rest_framework.generics import CreateAPIView
from rest_framework.permissions import IsAuthenticated


from apps.auth1.serializers import LoginSerializer

# Create your views here.

class TokenBlackView(APIView):
    permission_classes = [IsAuthenticated]

    def post(self, request, *args, **kwargs):
        """
        Token拉黑


        Token拉黑
        """
        return Response(status=status.HTTP_200_OK)
    
class LoginView(CreateAPIView):
    """
    Session登录


    账户密码Session登录
    """
    authentication_classes = []
    permission_classes = []
    serializer_class = LoginSerializer
    
    def create(self, request, *args, **kwargs):
        serializer = self.get_serializer(data=request.data)
        serializer.is_valid(raise_exception=True)
        vdata = serializer.validated_data
        user = authenticate(username = vdata.get('username'), 
                            password = vdata.get('password'))
        if user is not None:
            login(request, user)
            return Response()
        raise ParseError('账户名或密码错误', 'username_or_password_wrong')

class LogoutView(APIView):
    authentication_classes = []
    permission_classes = []
    
    def post(self, request, *args, **kwargs):
        """
        退出登录


        退出登录
        """
        logout(request)
        return Response()