fix(notifications): timed mutes are lifted by any Lotus device, not just the one that set them (#333)

A timed mute writes a server-side push rule (muted everywhere), but the
unmute timer lived in one browser's localStorage: close that laptop and
the room stayed muted on the phone until it was reopened, and forever
after a logout there. Timers now live in account data
(io.lotus.mute_timers: { timers: { [roomId]: unmuteAt } }). Every
client schedules from it, reschedules when it changes, and the first one
online after expiry unmutes. An indefinite mute clears a pending timer.
Local timers from before are migrated once.

Fixes #333

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5

src/app/features/room-nav/RoomNavItem.tsx

@@ -80,7 +80,7 @@ import {
   setRoomNotificationPreference,
 } from '../../hooks/useRoomsNotificationPreferences';
 import { RoomNotificationModeSwitcher } from '../../components/RoomNotificationSwitcher';
-import { scheduleMuteTimer, unmuteRoom } from './muteTimers';
+import { clearMuteTimer, scheduleMuteTimer } from './muteTimers';
 import { getRoomCreatorsForRoomId, useRoomCreators } from '../../hooks/useRoomCreators';
 import { getRoomPermissionsAPI, useRoomPermissions } from '../../hooks/useRoomPermissions';
 import { InviteUserPrompt } from '../../components/invite-user-prompt';
@@ -381,9 +381,10 @@ const RoomNavItemMenu = forwardRef<HTMLDivElement, RoomNavItemMenuProps>(
           prevMode,
         ).catch(() => {});
         if (durationMs !== null) {
-          scheduleMuteTimer(room.roomId, durationMs, () => {
-            unmuteRoom(mx, room.roomId);
-          });
+          await scheduleMuteTimer(mx, room.roomId, durationMs).catch(() => {});
+        } else {
+          // An indefinite mute replaces any timed one.
+          await clearMuteTimer(mx, room.roomId);
         }
         requestClose();
       },

src/app/features/room-nav/muteTimers.test.ts

@@ -1,7 +1,7 @@
 import { test } from 'node:test';
 import assert from 'node:assert/strict';
 import { RoomNotificationMode } from '../../hooks/useRoomsNotificationPreferences';
-import { shouldResetMuteOnUnmute } from './muteTimers';
+import { muteTimersContent, parseMuteTimers, shouldResetMuteOnUnmute } from './muteTimers';
 
 test('resets to Unset when the room is still Mute at expiry', () => {
   assert.equal(shouldResetMuteOnUnmute(RoomNotificationMode.Mute), true);
@@ -18,3 +18,16 @@ test('does not reset when the user switched to Special messages during the mute
 test('does not reset when the mode is already Unset', () => {
   assert.equal(shouldResetMuteOnUnmute(RoomNotificationMode.Unset), false);
 });
+
+test('parseMuteTimers / muteTimersContent round-trip and tolerate garbage (#333)', () => {
+  const entries = [
+    { roomId: '!a:x', unmuteAt: 1000 },
+    { roomId: '!b:x', unmuteAt: 2000 },
+  ];
+  assert.deepEqual(parseMuteTimers(muteTimersContent(entries)), entries);
+  assert.deepEqual(parseMuteTimers({ timers: { '!a:x': 'soon', '!b:x': 5 } }), [
+    { roomId: '!b:x', unmuteAt: 5 },
+  ]);
+  assert.deepEqual(parseMuteTimers(undefined), []);
+  assert.deepEqual(parseMuteTimers({ timers: null }), []);
+});

src/app/features/room-nav/muteTimers.ts

@@ -7,7 +7,7 @@ import {
   setRoomNotificationPreference,
 } from '../../hooks/useRoomsNotificationPreferences';
 
-// localStorage key for timed mute timers
+// Legacy localStorage key (before #333); migrated into account data once.
 export const MUTE_TIMERS_KEY = 'io.lotus.mute_timers';
 
 // setTimeout's delay is a signed 32-bit int; larger values overflow and fire
@@ -16,17 +16,60 @@ export const MAX_MUTE_TIMEOUT_MS = 2_147_483_647;
 
 export type MuteTimerEntry = { roomId: string; unmuteAt: number };
 
-export function loadMuteTimers(): MuteTimerEntry[] {
-  try {
-    const parsed = JSON.parse(localStorage.getItem(MUTE_TIMERS_KEY) ?? '[]');
-    return Array.isArray(parsed) ? parsed : [];
-  } catch {
-    return [];
-  }
+/** Pure: the timers in an `io.lotus.mute_timers` account data content. */
+export function parseMuteTimers(content: unknown): MuteTimerEntry[] {
+  const timers = (content as { timers?: unknown } | undefined)?.timers;
+  if (!timers || typeof timers !== 'object') return [];
+  return Object.entries(timers as Record<string, unknown>)
+    .filter((e): e is [string, number] => typeof e[1] === 'number' && Number.isFinite(e[1]))
+    .map(([roomId, unmuteAt]) => ({ roomId, unmuteAt }));
 }
 
-export function saveMuteTimers(timers: MuteTimerEntry[]): void {
-  localStorage.setItem(MUTE_TIMERS_KEY, JSON.stringify(timers));
+/** Pure: account data content for `entries`. */
+export const muteTimersContent = (entries: MuteTimerEntry[]) => ({
+  timers: Object.fromEntries(entries.map((e) => [e.roomId, e.unmuteAt])),
+});
+
+/**
+ * [Gitea #333] Timed mutes live in account data: the mute itself is a
+ * server-side push rule on every device, so the timer must be too — kept in one
+ * browser's localStorage, only that device ever unmuted (and never after a
+ * logout there).
+ */
+export function loadMuteTimers(mx: MatrixClient): MuteTimerEntry[] {
+  return parseMuteTimers(getAccountData(mx, AccountDataEvent.LotusMuteTimers)?.getContent());
+}
+
+async function saveMuteTimers(mx: MatrixClient, entries: MuteTimerEntry[]): Promise<void> {
+  await mx.setAccountData(
+    AccountDataEvent.LotusMuteTimers as never,
+    muteTimersContent(entries) as never,
+  );
+}
+
+/** Move timers kept in this browser's localStorage (pre-#333) into account data. */
+export async function migrateLocalMuteTimers(mx: MatrixClient): Promise<void> {
+  let legacy: MuteTimerEntry[] = [];
+  try {
+    const parsed = JSON.parse(localStorage.getItem(MUTE_TIMERS_KEY) ?? '[]');
+    legacy = Array.isArray(parsed)
+      ? parsed.filter(
+          (e): e is MuteTimerEntry =>
+            !!e && typeof e.roomId === 'string' && typeof e.unmuteAt === 'number',
+        )
+      : [];
+  } catch {
+    legacy = [];
+  }
+  if (legacy.length === 0) return;
+  const current = loadMuteTimers(mx);
+  const merged = [...current, ...legacy.filter((l) => !current.some((c) => c.roomId === l.roomId))];
+  await saveMuteTimers(mx, merged);
+  try {
+    localStorage.removeItem(MUTE_TIMERS_KEY);
+  } catch {
+    /* ignore */
+  }
 }
 
 // Pure decision for the unmute guard: a timed mute should only be reset back to
@@ -77,12 +120,30 @@ export async function unmuteRoom(mx: MatrixClient, roomId: string): Promise<void
       RoomNotificationMode.Mute,
     ).catch(() => {});
   }
-  saveMuteTimers(loadMuteTimers().filter((e) => e.roomId !== roomId));
+  await clearMuteTimer(mx, roomId);
 }
 
-export function scheduleMuteTimer(roomId: string, durationMs: number, onUnmute: () => void): void {
-  const unmuteAt = Date.now() + durationMs;
-  const existing = loadMuteTimers().filter((e) => e.roomId !== roomId);
-  saveMuteTimers([...existing, { roomId, unmuteAt }]);
-  setTimeout(onUnmute, Math.min(durationMs, MAX_MUTE_TIMEOUT_MS));
+/** Drop a room's timer (e.g. it was muted indefinitely or unmuted by hand). */
+export async function clearMuteTimer(mx: MatrixClient, roomId: string): Promise<void> {
+  const timers = loadMuteTimers(mx);
+  if (!timers.some((e) => e.roomId === roomId)) return;
+  await saveMuteTimers(
+    mx,
+    timers.filter((e) => e.roomId !== roomId),
+  ).catch(() => {});
+}
+
+/**
+ * Record when a timed mute ends. MuteTimerRestore (on every Lotus device)
+ * schedules the unmute from account data, so whichever is online at expiry
+ * lifts it.
+ */
+export async function scheduleMuteTimer(
+  mx: MatrixClient,
+  roomId: string,
+  durationMs: number,
+): Promise<void> {
+  const unmuteAt = Date.now() + durationMs;
+  const existing = loadMuteTimers(mx).filter((e) => e.roomId !== roomId);
+  await saveMuteTimers(mx, [...existing, { roomId, unmuteAt }]);
 }

src/app/pages/client/ClientNonUIFeatures.tsx

@@ -58,8 +58,8 @@ import { useMediaAuthentication } from '../../hooks/useMediaAuthentication';
 import { presenceStateFromSetting, usePresenceUpdater } from '../../hooks/usePresenceUpdater';
 import {
   MAX_MUTE_TIMEOUT_MS,
-  MuteTimerEntry,
   loadMuteTimers,
+  migrateLocalMuteTimers,
   unmuteRoom,
 } from '../../features/room-nav/muteTimers';
 import { STATUS_EXPIRY_KEY, STATUS_MSG_KEY } from '../../features/settings/account/Profile';
@@ -91,6 +91,7 @@ import {
   shouldNotifyThreadReply,
   THREAD_NOTIFICATIONS_FALLBACK_BEHAVIOR,
 } from '../../utils/threadNotifications';
+import { AccountDataEvent } from '../../../types/matrix/accountData';
 
 // Grace period after the initial sync settles before invite notifications arm, so
 // the async invite-atom population lands first and isn't mistaken for new invites.
@@ -369,30 +370,35 @@ function PresenceUpdater() {
 function MuteTimerRestore() {
   const mx = useMatrixClient();
 
+  // [Gitea #333] Timers are in account data, so a mute set on another device
+  // is lifted here too, and changes there (a new mute, a manual unmute)
+  // reschedule. Moves any timers this browser kept locally (pre-#333) first.
   useEffect(() => {
-    const timers = loadMuteTimers();
-    if (timers.length === 0) return undefined;
-
-    const now = Date.now();
-    const pastDue: MuteTimerEntry[] = [];
-    const future: MuteTimerEntry[] = [];
-    timers.forEach((entry) => (entry.unmuteAt <= now ? pastDue : future).push(entry));
-
-    pastDue.forEach((entry) => {
-      unmuteRoom(mx, entry.roomId);
-    });
-
-    const handles = future.map((entry) =>
-      setTimeout(
-        () => {
-          unmuteRoom(mx, entry.roomId);
-        },
-        Math.min(entry.unmuteAt - now, MAX_MUTE_TIMEOUT_MS),
-      ),
-    );
+    migrateLocalMuteTimers(mx).catch(() => {});
+  }, [mx]);
 
+  useEffect(() => {
+    let handles: ReturnType<typeof setTimeout>[] = [];
+    const schedule = () => {
+      handles.forEach(clearTimeout);
+      const now = Date.now();
+      handles = loadMuteTimers(mx).map((entry) =>
+        setTimeout(
+          () => {
+            unmuteRoom(mx, entry.roomId);
+          },
+          Math.max(0, Math.min(entry.unmuteAt - now, MAX_MUTE_TIMEOUT_MS)),
+        ),
+      );
+    };
+    const onAccountData = (event: MatrixEvent) => {
+      if (event.getType() === AccountDataEvent.LotusMuteTimers) schedule();
+    };
+    schedule();
+    mx.on(ClientEvent.AccountData, onAccountData);
     return () => {
       handles.forEach(clearTimeout);
+      mx.removeListener(ClientEvent.AccountData, onAccountData);
     };
   }, [mx]);
 

src/app/state/plaintextCaches.ts

@@ -64,9 +64,10 @@ const clearMsgDrafts = (): void => {
  *   `lotus-status-expiry-*`, used to be preserved; since [Gitea #204] they are
  *   swept with the rest — the server-side presence status survives, so a
  *   re-login loses nothing)
- * - low-sensitivity UI/metadata residue (`io.lotus.mute_timers`, collapsed
- *   nav/space categories, `cinny_oidc_dynamic_clients`) is treated as
- *   preferences, not swept here
+ * - low-sensitivity UI/metadata residue (collapsed nav/space categories,
+ *   `cinny_oidc_dynamic_clients`) is treated as preferences, not swept here.
+ *   Timed mutes moved to account data in [Gitea #333]; a leftover local
+ *   `io.lotus.mute_timers` is migrated there on the next start.
  */
 /**
  * [Gitea #204] The local mirror of the user's status message (+ its expiry) is

src/types/matrix/accountData.ts

@@ -26,6 +26,10 @@ export enum AccountDataEvent {
   // [Gitea #104] Synced subset of the Lotus Settings object (utils/settingsSync).
   LotusSettings = 'io.lotus.settings',
 
+  // [Gitea #333] Timed mutes: { timers: { [roomId]: unmuteAt } }, so any Lotus
+  // device can lift a mute set on another.
+  LotusMuteTimers = 'io.lotus.mute_timers',
+
   SecretStorageDefaultKey = 'm.secret_storage.default_key',
 
   CrossSigningMaster = 'm.cross_signing.master',