HHHMHA/recipe-app-api

from rest_framework import serializers
from django.contrib.auth import get_user_model, authenticate
from django.utils.translation import ugettext_lazy as _

User = get_user_model()


class UserSerializer(serializers.ModelSerializer):
    """Serializer for the user object"""

    class Meta:
        model = User
        fields = ('email', 'password', 'name')
        extra_kwargs = {
            'password': {
                'write_only': True,
                'min_length': 5
            }
        }

    def update(self, instance, validated_data):
        """Update the authenticated user and sets the password correctly"""

        # Remove the password to set using the set_password method
        password = validated_data.pop('password', None)
        user = super().update(instance, validated_data)
        if password:
            instance.set_password(password)

        user.save()
        return user

    def create(self, validated_data):
        """Create a new user with encrypted password and return it"""

        return User.objects.create_user(**validated_data)


class AuthTokenSerializer(serializers.Serializer):
    """Serializer for the user authentication token"""

    email = serializers.CharField()
    password = serializers.CharField(
        style={'input_type': 'password'},
        trim_whitespace=False,
    )

    def validate(self, attrs):
        """Validate and authenticate the user"""

        email = attrs.get('email')
        password = attrs.get('password')

        user = authenticate(
            request=self.context.get('request'),
            username=email,
            password=password,
        )

        if not user:
            msg = _('Unable to authenticate with provided credentials')
            raise serializers.ValidationError(msg, code='authentication')

        attrs['user'] = user
        return attrs