from rest_framework import routers, viewsets, serializers
from rest_framework.decorators import api_view, permission_classes, authentication_classes
from rest_framework.response import Response
from rest_framework.authentication import BasicAuthentication
from django.contrib.auth.models import User


class UserSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = ('id', 'username', 'email', 'first_name', 'last_name')


class RegisterUserSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = ('username', 'password', 'email')
        extra_kwargs = {
            'password': {'write_only': True},
        }


class UserViewSet(viewsets.ModelViewSet):
    queryset = User.objects.all()
    serializer_class = UserSerializer
    authentication_classes = [BasicAuthentication]
    permission_classes = []


@api_view(['GET'])
@permission_classes([])
@authentication_classes([BasicAuthentication])
def token(request):
    return Response({
        'token': request.user.auth_token.key
    })


@api_view(['POST'])
@permission_classes([])
@authentication_classes([])
def registerUser(request):
    serializer = RegisterUserSerializer(data=request.data)
    if serializer.is_valid():
        user = serializer.save()
        return Response({'username': user.username, 'email': user.email}, status=201)
    return Response(serializer.errors, status=400)


router = routers.SimpleRouter()
router.register(r'users', UserViewSet, basename='users')

urlpatterns = router.urls