Restore task completion notification (#6427)

ui/desktop/src/hooks/useChatStream.ts

@@ -170,6 +170,7 @@ export function useChatStream({
   });
   const [notifications, setNotifications] = useState<NotificationEvent[]>([]);
   const abortControllerRef = useRef<AbortController | null>(null);
+  const lastInteractionTimeRef = useRef<number>(Date.now());
 
   useEffect(() => {
     if (session) {
@@ -192,6 +193,14 @@ export function useChatStream({
         setSessionLoadError(error);
       }
 
+      const timeSinceLastInteraction = Date.now() - lastInteractionTimeRef.current;
+      if (!error && timeSinceLastInteraction > 60000) {
+        window.electron.showNotification({
+          title: 'goose finished the task.',
+          body: 'Click here to expand.',
+        });
+      }
+
       const isNewSession = sessionId && sessionId.match(/^\d{8}_\d{6}$/);
       if (isNewSession) {
         console.log(
@@ -294,6 +303,8 @@ export function useChatStream({
         return;
       }
 
+      lastInteractionTimeRef.current = Date.now();
+
       // Emit session-created event for first message in a new session
       if (!hasExistingMessages && hasNewMessage) {
         window.dispatchEvent(new CustomEvent('session-created'));
@@ -352,6 +363,8 @@ export function useChatStream({
         return;
       }
 
+      lastInteractionTimeRef.current = Date.now();
+
       const responseMessage = createElicitationResponseMessage(elicitationId, userData);
       const currentMessages = [...messagesRef.current, responseMessage];
 
@@ -431,6 +444,7 @@ export function useChatStream({
   const stopStreaming = useCallback(() => {
     abortControllerRef.current?.abort();
     setChatState(ChatState.Idle);
+    lastInteractionTimeRef.current = Date.now();
   }, []);
 
   const onMessageUpdate = useCallback(