from django.contrib.auth import authenticate, get_user_model

from django.utils.translation import ugettext_lazy as _

from rest_framework import exceptions, serializers

class AuthTokenSerializer(serializers.Serializer):

    email = serializers.CharField()

    password = serializers.CharField(style={'input_type': 'password'})

    def validate(self, attrs):

        email = attrs.get('email')

        password = attrs.get('password')

        if email and password:

            user = authenticate(email=email, password=password)

            if user:

                if not user.is_active:

                    msg = _('User account is disabled.')

                    raise exceptions.ValidationError(msg)

            else:

                msg = _('Unable to log in with provided credentials.')

                raise exceptions.ValidationError(msg)

        else:

            msg = _('Must include "email" and "password".')

            raise exceptions.ValidationError(msg)

        attrs['user'] = user

        return attrs

class UserSerializer(serializers.ModelSerializer):

    class Meta:

        model = get_user_model()

        fields = ('id', 'email', 'last_login', 'id_user')