# -*- coding: utf-8 -*-
from django.conf import settings
from functions.translate import get_translated_fields


def fill_missing_languages(obj):
    """
    looking for missing languages
    and fill translated fields with first available language

    uses in post_save signal
    """

    # what languages must be
    all_langs = [code for code, lang in settings.LANGUAGES]
    # what languages are
    obj_langs = obj.get_available_languages()
    missing_languages = list(set(all_langs) - set(obj_langs))
    # get first Translation object
    translation = obj.translations.all()[0]

    fields = get_translated_fields(obj)

    for code in missing_languages:
        # translate
        obj.translate(code)
        # go through all fields and set value
        for field in fields:
            setattr(obj, field, getattr(translation, field))

        obj.save()