from django import forms

from iconolab.models import AnnotationRevision

import json, logging

logger = logging.getLogger(__name__)

class MultipleTagsField(forms.TypedMultipleChoiceField):

    pass

class AnnotationRevisionForm(forms.ModelForm):

    class Meta:

        model = AnnotationRevision

        fields = ('title', 'description', 'fragment')

        widgets = {

        }

    def __init__(self, *args, **kwargs):

        super(AnnotationRevisionForm, self).__init__(*args, **kwargs)

    def clean(self, *args, **kwargs):

        cleaned_data = super(AnnotationRevisionForm, self).clean(*args, **kwargs)

        if not (cleaned_data.get("title", "") or cleaned_data.get("description", "") or json.loads(cleaned_data.get("tags", "[]"))):

            raise forms.ValidationError("Au moins un de ces champs doit être renseigné: description, titre ou mot-clé", code="missing_fields")

    def tags_json(self):

        if self.instance:

            tags_list = []

            for tag_info in self.instance.tagginginfo_set.all():

                tags_list.append({

                    'tag_input': tag_info.tag.link,

                    'relevancy': tag_info.relevancy,

                    'accuracy': tag_info.accuracy

                })

            return json.dumps(tags_list)

        else: