replace python django backend with nodejs backend

backend_old/ai/websocket.py

@@ -0,0 +1,44 @@
+import injector
+import json
+from channels.generic.websocket import WebsocketConsumer
+
+
+class DashboardConnectionManager:
+    def __init__(self):
+        self._clients = []
+
+    def register(self, client: WebsocketConsumer):
+        self._clients.append(client)
+        pass
+
+    def unregister(self, client: WebsocketConsumer):
+        self._clients.remove(client)
+
+    def broadcast(self, message: any):
+        for client in self._clients:
+            client.push(message)
+
+
+class DashboardConsumer(WebsocketConsumer):
+    @injector.inject
+    def __init__(self, manager: DashboardConnectionManager, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self._manager = manager
+
+    def connect(self):
+        self.accept()
+        self._manager.register(self)
+
+    def disconnect(self, close_code):
+        self._manager.unregister(self)
+
+    def receive(self, text_data=None, bytes_data=None):
+        # text_data_json = json.loads(text_data)
+        # message = text_data_json['message']
+        # self.send(text_data=json.dumps({
+        #     'message': message
+        # }))
+        pass  # do nothing currently
+
+    def push(self, message):
+        self.send(text_data=json.dumps(message))