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from typing import Dict
from uuid import UUID
import asyncio
from fastapi import WebSocket
from types import SimpleNamespace
from typing import Dict
from typing import Union
UserDataContent = Dict[UUID, Dict[str, Union[WebSocket, asyncio.Queue]]]
class UserData:
def __init__(self):
self.data_content: Dict[UUID, UserDataContent] = {}
async def create_user(self, user_id: UUID, websocket: WebSocket):
self.data_content[user_id] = {
"websocket": websocket,
"queue": asyncio.Queue(),
}
await asyncio.sleep(1)
def check_user(self, user_id: UUID) -> bool:
return user_id in self.data_content
async def update_data(self, user_id: UUID, new_data: SimpleNamespace):
user_session = self.data_content[user_id]
queue = user_session["queue"]
while not queue.empty():
try:
queue.get_nowait()
except asyncio.QueueEmpty:
continue
await queue.put(new_data)
async def get_latest_data(self, user_id: UUID) -> SimpleNamespace:
user_session = self.data_content[user_id]
queue = user_session["queue"]
try:
return await queue.get()
except asyncio.QueueEmpty:
return None
def delete_user(self, user_id: UUID):
user_session = self.data_content[user_id]
queue = user_session["queue"]
while not queue.empty():
try:
queue.get_nowait()
except asyncio.QueueEmpty:
continue
if user_id in self.data_content:
del self.data_content[user_id]
def get_user_count(self) -> int:
return len(self.data_content)
user_data = UserData()
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