"""Serializers for app advertisements"""
from rest_framework import serializers

from advertisement import models
from translation.serializers import LanguageSerializer
from main.serializers import SiteShortSerializer
from main.serializers import PageBaseSerializer


class AdvertisementBaseSerializer(serializers.ModelSerializer):
    """Base serializer for model Advertisement."""

    languages = LanguageSerializer(many=True, read_only=True)
    sites = SiteShortSerializer(many=True, read_only=True)

    class Meta:
        model = models.Advertisement
        fields = [
            'id',
            'uuid',
            'url',
            'block_level',
            'languages',
            'sites',
            'start',
            'end',
        ]


class AdvertisementPageTypeCommonListSerializer(AdvertisementBaseSerializer):
    """Serializer for AdvertisementPageTypeCommonView."""

    page = PageBaseSerializer(source='common_page', read_only=True)

    class Meta(AdvertisementBaseSerializer.Meta):
        """Meta class."""
        fields = AdvertisementBaseSerializer.Meta.fields + [
            'page',
        ]