"""Search indexes serializers."""
from rest_framework import serializers
from django_elasticsearch_dsl_drf.serializers import DocumentSerializer
from news.serializers import NewsTypeSerializer
from search_indexes.documents import EstablishmentDocument, NewsDocument
from search_indexes.utils import get_translated_value


class TagsDocumentSerializer(serializers.Serializer):
    """Tags serializer for ES Document."""

    id = serializers.IntegerField()
    label_translated = serializers.SerializerMethodField()

    def get_label_translated(self, obj):
        return get_translated_value(obj.label)


class AddressDocumentSerializer(serializers.Serializer):
    """Address serializer for ES Document."""

    id = serializers.IntegerField()
    street_name_1 = serializers.CharField()
    street_name_2 = serializers.CharField()
    number = serializers.IntegerField()
    postal_code = serializers.CharField()
    latitude = serializers.FloatField(allow_null=True, source='coordinates.lat')
    longitude = serializers.FloatField(allow_null=True, source='coordinates.lon')
    geo_lon = serializers.FloatField(allow_null=True, source='coordinates.lon')
    geo_lat = serializers.FloatField(allow_null=True, source='coordinates.lat')


class NewsDocumentSerializer(DocumentSerializer):
    """News document serializer."""

    title_translated = serializers.SerializerMethodField(allow_null=True)
    subtitle_translated = serializers.SerializerMethodField(allow_null=True)
    news_type = NewsTypeSerializer()
    tags = TagsDocumentSerializer(many=True)

    class Meta:
        """Meta class."""

        document = NewsDocument
        fields = (
            'id',
            'title_translated',
            'subtitle_translated',
            'is_highlighted',
            'image_url',
            'preview_image_url',
            'news_type',
            'tags',
            'slug',
        )

    @staticmethod
    def get_title_translated(obj):
        return get_translated_value(obj.title)

    @staticmethod
    def get_subtitle_translated(obj):
        return get_translated_value(obj.subtitle)


class EstablishmentDocumentSerializer(DocumentSerializer):
    """Establishment document serializer."""

    address = AddressDocumentSerializer()
    tags = TagsDocumentSerializer(many=True)

    class Meta:
        """Meta class."""

        document = EstablishmentDocument
        fields = (
            'id',
            'name',
            'name_translated',
            'price_level',
            'toque_number',
            'public_mark',
            'slug',
            'preview_image',
            'address',
            'tags',
            # 'collections',
            # 'establishment_type',
            # 'establishment_subtypes',
        )


    # def to_representation(self, instance):
    #     ret = super().to_representation(instance)
    #     dict_merge = lambda a, b: a.update(b) or a
    #
    #     ret['tags'] = map(lambda tag: dict_merge(tag, {'label_translated': get_translated_value(tag.pop('label'))}),
    #                       ret['tags'])
    #     ret['establishment_subtypes'] = map(
    #         lambda subtype: dict_merge(subtype, {'name_translated': get_translated_value(subtype.pop('name'))}),
    #         ret['establishment_subtypes'])
    #     if ret.get('establishment_type'):
    #         ret['establishment_type']['name_translated'] = get_translated_value(ret['establishment_type'].pop('name'))
    #     if ret.get('address'):
    #         ret['address']['city']['country']['name_translated'] = get_translated_value(
    #             ret['address']['city']['country'].pop('name'))
    #         location = ret['address'].pop('location')
    #         if location:
    #             ret['address']['geo_lon'] = location['lon']
    #             ret['address']['geo_lat'] = location['lat']
    #
    #     ret['type'] = ret.pop('establishment_type')
    #     ret['subtypes'] = ret.pop('establishment_subtypes')
    #
    #     return ret