[+] add websocket clients manager

deps/test-task-2025-06-30-v1/python/online/fxreader/pr34/test_task_2025_06_30_v1/async_api/fastapi.py

@@ -1,4 +1,5 @@
 import fastapi
+import functools
 import logging
 import copy
 import uvicorn
@@ -7,18 +8,68 @@ import sys
 
 from .settings import Settings as APISettings
 
-async def websocket_tickers(
+from typing import (Any, Optional,)
-	websocket: fastapi.WebSocket,
+
+logger = logging.getLogger(__name__)
+
+class WebsocketAPI:
+	def __init__(
+		self,
+	) -> None:
+		self.connections : set[
+			fastapi.WebSocket,
+		] = set()
+		self.subscriptionss : dict[str, set[fastapi.WebSocket]] = dict()
+
+	async def connect(self, client: fastapi.WebSocket) -> None:
+		assert not client in self.connections
+
+		await client.accept()
+
+		self.connections.add(client)
+
+	async def on_message(
+		self,
+		client: fastapi.WebSocket,
+		msg: Any
 	) -> None:
 		raise NotImplementedError
 
+	async def disconnect(self, client: fastapi.WebSocket) -> None:
+		assert client in self.connections
+
+		self.connections.remove(client)
+
+async def websocket_tickers(
+	websocket: fastapi.WebSocket,
+	websocket_api: WebsocketAPI,
+) -> None:
+	try:
+		await websocket_api.connect(websocket)
+
+		while True:
+			msg = await websocket.receive_text()
+			await websocket_api.on_message(websocket, msg)
+	except fastapi.WebSocketDisconnect:
+		pass
+		# websocket_api.disconnect(websocket)
+	except:
+		logger.exception('')
+	finally:
+		await websocket_api.disconnect(websocket)
+
 def create_app() -> fastapi.FastAPI:
+	websocket_api = WebsocketAPI()
+
 	app = fastapi.FastAPI()
 
 	app.websocket(
 		'/tickers/',
 	)(
+		functools.partial(
 			websocket_tickers,
+			websocket_api=websocket_api,
+		)
 	)
 
 	return app