from rest_framework import serializers

from apps.transaction.models import TransactionParticipant, ParticipantInfo
from apps.course.serializers import CourseDetailSerializer




class ParticipantInfoSerializer(serializers.ModelSerializer):
    class Meta:
        model = ParticipantInfo
        fields = ['fullname', 'email', 'phone_number', 'gender', 'birthdate']


class TransactionParticipantSerializer(serializers.ModelSerializer):
    participant_infos = ParticipantInfoSerializer(many=True)

    class Meta:
        model = TransactionParticipant
        fields = ['participant_infos']


    def create(self, validated_data):
        participant_infos_data = validated_data.pop('participant_infos', [])
        transaction_participant = TransactionParticipant.objects.create(**validated_data)
        
        for participant_info_data in participant_infos_data:
            ParticipantInfo.objects.create(transaction_participant=transaction_participant, **participant_info_data)
        
        return transaction_participant



class TransactionListSerializer(serializers.ModelSerializer):
    course = serializers.SerializerMethodField()
    
    class Meta:
        model = TransactionParticipant
        fields = ['course', 'is_paid', 'price', 'created_at', 'updated_at']
        
    def get_course(self, obj):
        return CourseDetailSerializer(obj.course, context=self.context).data