from rest_framework import serializers
from .models import ChatMessage

class ChatMessageSerializer(serializers.ModelSerializer):
    class Meta:
        model = ChatMessage
        fields = ['id', 'user', 'bot', 'message', 'timestamp', 'sender', 'message_type', 'message_audio_url', 'message_video_url']
        read_only_fields = ['id', 'timestamp', 'sender']