from django.contrib import auth
from django.shortcuts import render

from rest_framework import generics, authentication, permissions 
from rest_framework.authtoken.views import ObtainAuthToken
from rest_framework.settings import api_settings

from user.serializers import UserSerializer, AuthTokenSerializer


class CreateUserView(generics.CreateAPIView):
    """ create a new user in the system"""
    serializer_class = UserSerializer



class CreateTokenView(ObtainAuthToken):
    """create a new auth token for user"""
    serializer_class = AuthTokenSerializer
    renderer_classes = api_settings.DEFAULT_RENDERER_CLASSES


class ManageUserView(generics.RetrieveUpdateAPIView):
    """Manage the authenticated user"""
    serializer_class = UserSerializer
    authentication_classes = (authentication.TokenAuthentication,)
    permission_classes = (permissions.IsAuthenticated,)

    def get_object(self):
        """
            retrieve auhtenticated user
        """
        return self.request.user