From 10f8e1ec06bf9460b7f1e4d295a003ed73df24b5 Mon Sep 17 00:00:00 2001
From: Epid <dev@epid.co>
Date: Thu, 2 Apr 2026 08:05:00 +0300
Subject: [PATCH] chore(stopwatch): remove dead no-event-source code paths

The shared worker no longer emits 'no-event-source' messages since the
EventSource transport was removed. Clean up the unreachable branches
in both notification.ts and stopwatch.ts.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 web_src/js/features/notification.ts |  6 +-----
 web_src/js/features/stopwatch.ts    | 11 +++--------
 2 files changed, 4 insertions(+), 13 deletions(-)

diff --git a/web_src/js/features/notification.ts b/web_src/js/features/notification.ts
index acb1b68f28..8483a28299 100644
--- a/web_src/js/features/notification.ts
+++ b/web_src/js/features/notification.ts
@@ -21,10 +21,8 @@ async function receiveUpdateCount(event: MessageEvent<{type: string, data: strin
 export function initNotificationCount() {
   if (!document.querySelector('.notification_count')) return;
 
-  let usingPeriodicPoller = false;
   const startPeriodicPoller = (timeout: number, lastCount?: number) => {
     if (timeout <= 0 || !Number.isFinite(timeout)) return;
-    usingPeriodicPoller = true;
     lastCount = lastCount ?? getCurrentCount();
     setTimeout(async () => {
       await updateNotificationCountWithCallback(startPeriodicPoller, timeout, lastCount);
@@ -35,9 +33,7 @@ export function initNotificationCount() {
     // Try to connect to the event source via the shared worker first
     const worker = new UserEventsSharedWorker('notification-worker');
     worker.addMessageEventListener((event: MessageEvent) => {
-      if (event.data.type === 'no-event-source') {
-        if (!usingPeriodicPoller) startPeriodicPoller(notificationSettings.MinTimeout);
-      } else if (event.data.type === 'notification-count') {
+      if (event.data.type === 'notification-count') {
         receiveUpdateCount(event); // no await
       }
     });
diff --git a/web_src/js/features/stopwatch.ts b/web_src/js/features/stopwatch.ts
index fb878e4bba..c5d68c5595 100644
--- a/web_src/js/features/stopwatch.ts
+++ b/web_src/js/features/stopwatch.ts
@@ -60,8 +60,8 @@ export function initStopwatch() {
     const url = btn.getAttribute('data-url');
     if (!url) return;
 
-    const startGroup = document.querySelector('.issue-start-buttons');
-    const stopGroup = document.querySelector('.issue-stop-cancel-buttons');
+    const startGroup = document.querySelector('.issue-start-buttons')!;
+    const stopGroup = document.querySelector('.issue-stop-cancel-buttons')!;
     const isStart = btn.classList.contains('issue-start-time');
 
     btn.classList.add('is-loading');
@@ -81,10 +81,8 @@ export function initStopwatch() {
     }
   });
 
-  let usingPeriodicPoller = false;
   const startPeriodicPoller = (timeout: number) => {
     if (timeout <= 0 || !Number.isFinite(timeout)) return;
-    usingPeriodicPoller = true;
     setTimeout(() => updateStopwatchWithCallback(startPeriodicPoller, timeout), timeout);
   };
 
@@ -93,10 +91,7 @@ export function initStopwatch() {
     // Try to connect to the event source via the shared worker first
     const worker = new UserEventsSharedWorker('stopwatch-worker');
     worker.addMessageEventListener((event) => {
-      if (event.data.type === 'no-event-source') {
-        // browser doesn't support EventSource, falling back to periodic poller
-        if (!usingPeriodicPoller) startPeriodicPoller(notificationSettings.MinTimeout);
-      } else if (event.data.type === 'stopwatches') {
+      if (event.data.type === 'stopwatches') {
         updateStopwatchData(JSON.parse(event.data.data));
       }
     });