from django.db import models
from backend.models.abstract.my_model import MyModelVersionned, MyModelVersionnedSerializer, MyModelVersionnedViewSet
from backend.fields import JSONField
from backend.validators.tag import validate_content_against_config
from backend.validators.tag.tags_config import USEFULL_LINKS_CONFIG

IMPORTANCE_LEVEL = (
    ('-', 'normal'),
    ('+', 'important'),
    ('++', 'IMPORTANT')
)


class BasicModule(MyModelVersionned):

    comment = models.TextField(blank=True, default="")
    usefull_links = JSONField(default=list)
    importance_level = models.CharField(
        max_length=2,
        choices=IMPORTANCE_LEVEL,
        default='-',
    )

    class Meta:
        abstract = True


class BasicModuleSerializer(MyModelVersionnedSerializer):

    def my_validate(self, attrs):
        content = {'usefull_links': attrs['usefull_links']}
        config = {'usefull_links': USEFULL_LINKS_CONFIG}
        validate_content_against_config(config, content)
        return attrs

    class Meta:
        model = BasicModule
        fields = '__all__'


class BasicModuleViewSet(MyModelVersionnedViewSet):
    serializer_class = BasicModuleSerializer