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53 | import json
from asgiref.sync import async_to_sync
from channels.generic.websocket import WebsocketConsumer
from .chat_cache import (discard_user_messages, handle_alone_user,
handle_connect, handle_disconnect)
from .skippy import invokeMFSkippy
class ChatConsumer(WebsocketConsumer):
def connect(self):
self.room_group_name = "chat"
# Join room group
async_to_sync(self.channel_layer.group_add)(
self.room_group_name, self.channel_name
)
self.accept()
handle_connect()
def disconnect(self, close_code):
# Leave room group
async_to_sync(self.channel_layer.group_discard)(
self.room_group_name, self.channel_name
)
handle_disconnect()
discard_user_messages(user_identifier=self.channel_name)
def receive(self, text_data):
text_data_json = json.loads(text_data)
message = text_data_json['message']
username = text_data_json['username']
# Send message to room group
async_to_sync(self.channel_layer.group_send)(
self.room_group_name, {"type": "chat", "message": message, "username": username}
)
is_alone_user = handle_alone_user()
if is_alone_user:
skippy_message = invokeMFSkippy(message=message, identifier=self.channel_name)
if skippy_message:
async_to_sync(self.channel_layer.group_send)(
self.room_group_name, {"type": "chat", "message": skippy_message, "username": "Skippy"}
)
# Receive message from room group
def chat(self, event):
message = event["message"]
username = event["username"]
# Send message to WebSocket
self.send(text_data=json.dumps({"message": message, "username": username}))
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