from p4l.utils import strip_accents, get_labels_for_uris, safe_cache_key

from django.core.cache import get_cache

from django.conf import settings

import logging

logger = logging.getLogger(__name__)

def get_organizations_label(uris):

    cache = get_cache('indexation')

    res = {}

    missing_uris = []

    for uri in uris: 

        label = cache.get(safe_cache_key(uri))

        if label is not None:

            res[uri] = label

        else:

            missing_uris.append(uri)

    new_labels = get_labels_for_uris(missing_uris, settings.RDF_SCHEMES['organization'], None, True)

    for k,v in new_labels.iteritems():

        cache.set(safe_cache_key(k),v)

        res[k] = v

    return res

class RecordIndex(indexes.SearchIndex, indexes.Indexable):    

    authors = indexes.MultiValueField(model_attr="all_authors", stored=False)

    def prepare(self, obj):

        authors = obj.get_authors() + get_organizations_label(obj.get_corporate_authors()).values()

        obj.all_authors = [strip_accents(unicode(v)) for v in authors] 

        return indexes.SearchIndex.prepare(self, obj)

        return Record.objects.using(using).all().prefetch_related("imprints","authors", "titles", "corporateAuthors")