from rest_framework import serializers
from rest_framework.serializers import ModelSerializer

from vbv_lernwelt.simpletodo.models import SimpleTask, SimpleList


class SimpleTaskSerializer(ModelSerializer):
    list_title = serializers.CharField(max_length=100)

    class Meta:
        model = SimpleTask
        fields = ['id', 'title', 'text', 'done', 'deadline', 'list_title', ]

    def create(self, validated_data):
        user = validated_data.pop('user', None)
        if user is None:
            raise serializers.ValidationError('User is required')

        list_title = validated_data.pop('list_title')
        simple_list, _ = SimpleList.objects.get_or_create(title=list_title, user=user)

        validated_data['list'] = simple_list
        return super().create(validated_data)