import json
from channels.generic.websocket import AsyncWebsocketConsumer
from .models import Message
from django.contrib.auth.models import User

class ChatConsumer(AsyncWebsocketConsumer):
    async def connect(self):
        self.room_name = self.scope['url_route']['kwargs']['room_name']
        self.room_group_name = f'chat_{self.room_name}'

        # Присъединяване към групата
        await self.channel_layer.group_add(
            self.room_group_name,
            self.channel_name
        )

        await self.accept()

    async def disconnect(self, close_code):
        # Напускане на групата
        await self.channel_layer.group_discard(
            self.room_group_name,
            self.channel_name
        )

    async def receive(self, text_data):
        text_data_json = json.loads(text_data)
        message = text_data_json['message']

        # Записване на съобщението в базата
        user = self.scope["user"]
        if user.is_authenticated:
            Message.objects.create(user=user, room=self.room_name, content=message)

        # Изпращане на съобщението на всички в групата
        await self.channel_layer.group_send(
            self.room_group_name,
            {
                'type': 'chat_message',
                'message': message,
                'username': user.username if user.is_authenticated else 'Anonymous'
            }
        )

    async def chat_message(self, event):
        message = event['message']
        username = event['username']

        await self.send(text_data=json.dumps({
            'message': message,
            'username': username
        }))