Add lock

src/services/twitch.py

@@ -41,6 +41,8 @@ class TokenStorage:
 
 
 class TwitchService:
+    lock = Lock()
+
     SCOPES = [
         AuthScope.CHAT_READ,
         AuthScope.CHAT_EDIT,
@@ -126,6 +128,7 @@ class TwitchService:
         if stream is None:
             return
 
+        async with self.lock:
             current_state = self.state.get(brodcaster_id)
             if current_state is None:
                 return
@@ -152,9 +155,9 @@ class TwitchService:
             last_live_at=datetime.now()
         )
 
+        async with self.lock:
             current_state = self.state.get(streamer_id)
 
-
             is_need_notify = current_state is None or (datetime.now() - current_state.last_live_at).seconds >= self.ONLINE_NOTIFICATION_DELAY
 
             self.state[streamer_id] = state