from rest_framework import serializers

from ..serializers import HadisListSerializer
from ..models import BookReference , BookAuthor , BookReferenceImage, HadisReference , BookAttribute

class BookAuthorSerializer(serializers.ModelSerializer):
    class Meta:
        model = BookAuthor
        fields = ['id','name']

class BookReferenceImageSerializer(serializers.ModelSerializer):
    class Meta:
        model = BookReferenceImage
        fields = ['id','image','description','order']

class BookReferenceSerializer(serializers.ModelSerializer):
    image = BookReferenceImageSerializer(
        many= True ,
        read_only = True ,
        source = 'bookreference_set'
        )
    author = serializers.SerializerMethodField()
    class Meta:
        model = BookReference
        fields = ['id','title','rate','author','description','image','volume']
    def get_author (self,obj):
        author = obj.authors.all()
        return [
            {
                'id': author.id,
                'name': author.name
            }
            for author in author
        ]

class BookAttributeSerializer(serializers.ModelSerializer):
    class Meta:
        model = BookAttribute
        fields = ['id', 'title', 'value','book_reference']

class BookDetailSerializer(serializers.ModelSerializer):

    attribute = BookAttributeSerializer(
        many=True,
        read_only = True,
        source = 'attributes'
    )
    author= BookAuthorSerializer(
        many=True,
        read_only=True,
        source='authors'
    )
    image = BookReferenceImageSerializer(
        many=True,
        read_only=True,
        source='images'
    )

    hadis = HadisListSerializer(
        many=True,
        read_only=True,
        source='hadis_references'
    )

    class Meta:
        model = BookReference
        fields = ['id','title','rate','isbn','language','number_page','publisher','description','volume','slug','attribute','author','image','hadis']


class BookReferenceSyncSerializer(serializers.ModelSerializer):
    """Serializer for syncing all book reference data for offline mode"""

    attribute = BookAttributeSerializer(
        many=True,
        read_only = True,
        source = 'attributes'
    )
    author= BookAuthorSerializer(
        many=True,
        read_only=True,
        source='authors'
    )
    image = BookReferenceImageSerializer(
        many=True,
        read_only=True,
        source='images'
    )

    # Basic information
    detail = serializers.SerializerMethodField()

    # Hadis group (related hadises)
    hadises = serializers.SerializerMethodField()

    # authors = serializers.SerializerMethodField()

    class Meta:
        model = BookReference
        fields = [
            'id', 'title','rate' , 'author' ,'detail','image','attribute', 'hadises'
        ]
    def get_authors(self,obj):
        authors = []
        try:
            for author in obj.authors.all():
                authors.append({
                    'id': author.id,
                    'name': author.name
                })
        except:
            authors = []
        return authors


    def get_detail(self, obj):
        """Get basic book information including authors and rating"""
        return {
            'description': obj.description,
            'volume': obj.volume,
            'language': obj.language,
            'isbn': obj.isbn,
            'number_page':obj.number_page,
            'year_of_publication': obj.year_of_publication,
            'number_of_pages': obj.number_page,
            'volume_info': obj.volume,
            'rating': obj.rate
        }

    def get_hadises(self, obj):
        """Get all hadises related to this book reference"""
        hadis_list = []
        try:
            for hadis_ref in obj.hadis_references.all():
                hadis = hadis_ref.hadis
                hadis_list.append({
                    'id': hadis.id,
                    'title': hadis.title,
                    'title_narrator': hadis.title_narrator,
                    'text': hadis.text,
                    'translation': hadis.get_translation(self.context.get('request').LANGUAGE_CODE if self.context.get('request') else 'en'),
                    'share_link': hadis.share_link
                })
        except:
            pass

        return hadis_list