from rest_framework import serializers
from ..models import ContentRelease, HadisDatabaseVersion
from utils import absolute_https_url


class HadisDatabaseVersionSerializer(serializers.ModelSerializer):
    """سریالایزر دریافت آخرین اطلاعات فایل فشرده دیتابیس SQLite جهت دانلود و سینک آفلاین"""
    download_url = serializers.SerializerMethodField()

    class Meta:
        model = HadisDatabaseVersion
        fields = [
            'version',
            'download_url',
            'file_size',
            'checksum_md5',
            'hadis_count',
            'categories_count',
            'is_active',
            'notes',
            'created_at',
        ]

    def get_download_url(self, obj):
        if obj.file:
            request = self.context.get('request')
            if request:
                return absolute_https_url(obj.file.url, request)
            return obj.file.url
        return None


class ContentReleaseSyncSerializer(serializers.ModelSerializer):
    """Serializer for syncing content release data for offline mode with SQLite support"""
    sqlite_database = serializers.SerializerMethodField()

    class Meta:
        model = ContentRelease
        fields = [
            'id',
            'version_name',
            'published_at',
            'description',
            'is_active',
            'sqlite_database',
        ]

    def get_sqlite_database(self, obj):
        latest_db = HadisDatabaseVersion.get_latest_active()
        if latest_db:
            return HadisDatabaseVersionSerializer(latest_db, context=self.context).data
        return None