import json

from django.contrib.auth import get_user_model

import requests

from rest_framework import serializers, status, permissions

from rest_framework.authentication import TokenAuthentication

from rest_framework.authtoken.models import Token

from rest_framework.exceptions import ParseError

from rest_framework.permissions import IsAuthenticated

from rest_framework.response import Response

from rest_framework.views import APIView

from config import URL_JAMESPOT

class UserSerializer(serializers.ModelSerializer):

    class Meta:

        model = get_user_model()

class User(APIView):

    """

    get list user or add user

    """

    permission_classes = (permissions.AllowAny,)

    def get(self, request):

        print ("here ?")

        user = get_user_model().objects.all()

        serializer = UserSerializer(user, many=True)

        return Response(serializer.data)

    def post(self, request):

        VALID_USER_FIELDS = [f.name for f in get_user_model()._meta.fields]

        DEFAULTS = {

            "groups":"",

            "user_permissions":""

        }

        request.data.update(DEFAULTS)

        serialized = UserSerializer(data=request.data)

        if serialized.is_valid():

            user_data = {field: data for (field, data) in request.DATA.items() if field in VALID_USER_FIELDS}

            params = {'o': 'user', 'f': 'get', 'mail': user_data['email']}

            r = requests.get(URL_JAMESPOT, params=params)

            infoUser = json.loads(r.content.decode('utf-8'))

            user_data.update({"idUser":infoUser['VAL']['idUser']})

            user = get_user_model().objects.create_user(

                **user_data

            )

            return Response(UserSerializer(instance=user).data, status=status.HTTP_201_CREATED)

        else:

            return Response(serialized._errors, status=status.HTTP_400_BAD_REQUEST)

class AuthView(APIView):

    """

    Authentication is needed for this methods

    """

    authentication_classes = (TokenAuthentication,)

    permission_classes = (IsAuthenticated,)

    def get(self, request, format=None):

        return Response({'detail': "I suppose you are authenticated"})