Fail UnifiedPush reset when no endpoint arrives and surface lastFailure.

src/app/features/settings/notifications/SystemNotification.tsx

@@ -170,22 +170,32 @@ type PushStatus = {
   registered: boolean;
   distributor: string;
   endpoint: string;
+  distributors: string[];
+  lastFailure: string;
 };
 
 /** Android-only section showing UnifiedPush registration status and controls. */
 function AndroidPushNotifications() {
   const [status, setStatus] = useState<PushStatus | undefined>(undefined);
   const [loading, setLoading] = useState(true);
+  const [lastError, setLastError] = useState<string | undefined>(undefined);
 
   const refresh = useCallback(async () => {
     setLoading(true);
     const s = await getBackgroundSyncStatus();
+    const distributors = Array.isArray(s?.distributors)
+      ? s.distributors
+      : typeof s?.distributors === 'string' && s.distributors && s.distributors !== '[]'
+        ? [s.distributors]
+        : [];
     setStatus(
       s
         ? {
             registered: s.registered,
             distributor: s.distributor || '',
             endpoint: s.endpoint || '',
+            distributors,
+            lastFailure: s.lastFailure || '',
           }
         : undefined
     );
@@ -198,8 +208,14 @@ function AndroidPushNotifications() {
 
   const [resetState, reset] = useAsyncCallback(
     useCallback(async () => {
-      await requestResetPushRegistration();
+      setLastError(undefined);
+      const result = await requestResetPushRegistration();
       await refresh();
+      if (!result.success) {
+        setLastError(
+          'Selected distributor but did not get a push endpoint. In ntfy: enable UnifiedPush, allow unrestricted battery, then try Reset again.'
+        );
+      }
     }, [refresh])
   );
 
@@ -214,6 +230,43 @@ function AndroidPushNotifications() {
     resetState.status === AsyncStatus.Loading ||
     pingState.status === AsyncStatus.Loading;
 
+  const statusDescription = (() => {
+    if (loading) return 'Loading status…';
+    if (status === undefined) {
+      return (
+        <Text as="span" style={{ color: color.Critical.Main }} size="T200">
+          Failed to read push status.
+        </Text>
+      );
+    }
+    if (status.registered) {
+      return (
+        <Text as="span" size="T200">
+          {`Distributor: ${status.distributor || 'unknown'}`}
+        </Text>
+      );
+    }
+    if (status.lastFailure) {
+      return (
+        <Text as="span" style={{ color: color.Critical.Main }} size="T200">
+          {`Registration failed (${status.lastFailure}). Tap Reset and pick ntfy again.`}
+        </Text>
+      );
+    }
+    if (status.distributors.length === 0) {
+      return (
+        <Text as="span" style={{ color: color.Critical.Main }} size="T200">
+          No UnifiedPush distributor found. Install ntfy from Play Store/F-Droid and enable UnifiedPush in ntfy settings.
+        </Text>
+      );
+    }
+    return (
+      <Text as="span" style={{ color: color.Warning?.Main ?? color.Critical.Main }} size="T200">
+        {`Found ${status.distributors.join(', ')} but not registered yet. Tap Reset and pick ntfy.`}
+      </Text>
+    );
+  })();
+
   return (
     <Box direction="Column" gap="100">
       <Text size="L400">Android Push (UnifiedPush)</Text>
@@ -226,29 +279,20 @@ function AndroidPushNotifications() {
         <SettingTile
           title="Background Notifications"
           description={
-            loading ? (
+            <>
-              'Loading status…'
+              {statusDescription}
-            ) : status === undefined ? (
+              {lastError ? (
-              <Text as="span" style={{ color: color.Critical.Main }} size="T200">
+                <Text as="span" style={{ color: color.Critical.Main, display: 'block' }} size="T200">
-                Failed to read push status.
+                  {lastError}
-              </Text>
-            ) : status.registered ? (
-              <>
-                <Text as="span" size="T200">
-                  {`Distributor: ${status.distributor || 'unknown'}`}
                 </Text>
-              </>
+              ) : null}
-            ) : (
+            </>
-              <Text as="span" style={{ color: color.Warning?.Main ?? color.Critical.Main }} size="T200">
-                Not registered. Tap &quot;Reset&quot; to choose a distributor app.
-              </Text>
-            )
           }
           after={loading ? <Spinner variant="Secondary" /> : undefined}
         />
         <SettingTile
           title="Change Distributor"
-          description="Re-open the UnifiedPush distributor selection dialog."
+          description="Shows a list of installed UnifiedPush apps (ntfy, etc.) and registers the one you pick."
           after={
             <Button
               size="300"

src/app/utils/backgroundSync.ts

@@ -15,6 +15,7 @@ type UnifiedPushStatus = {
   registered: boolean;
   distributor: string;
   distributors: string[] | string;
+  lastFailure?: string;
 };
 
 type UnifiedPushEndpointEvent = {
@@ -55,6 +56,8 @@ interface MatrixBackgroundSyncPlugin {
   setAppForeground(options: { foreground: boolean }): Promise<void>;
   /** Returns fetch state and current UnifiedPush registration details. */
   getStatus(): Promise<UnifiedPushStatus>;
+  /** Native Matrix gateway discovery for a UnifiedPush endpoint (avoids WebView CORS). */
+  resolveUnifiedPushGateway(options: { endpoint: string }): Promise<{ gatewayUrl: string }>;
   addListener(
     eventName: 'unifiedPushNewEndpoint',
     listenerFunc: (event: UnifiedPushEndpointEvent) => void
@@ -141,6 +144,17 @@ const normalizeDistributors = (raw: UnifiedPushStatus['distributors']): string[]
 };
 
 const resolveUnifiedPushGateway = async (endpoint: string): Promise<string> => {
+  // Prefer native HTTP — ntfy/Matrix gateway responses omit CORS headers, so
+  // WebView fetch fails with TypeError: Failed to fetch and wrongly falls back.
+  try {
+    const { registerPlugin } = await loadCapacitorCore();
+    const MatrixBackgroundSync = registerPlugin<MatrixBackgroundSyncPlugin>('MatrixBackgroundSync');
+    const result = await MatrixBackgroundSync.resolveUnifiedPushGateway({ endpoint });
+    if (result?.gatewayUrl) return result.gatewayUrl;
+  } catch (err) {
+    console.warn('[BackgroundSync] Native UnifiedPush gateway discovery failed:', err);
+  }
+
   try {
     const discoveryUrl = new URL(endpoint);
     discoveryUrl.pathname = '/_matrix/push/v1/notify';
@@ -529,7 +543,23 @@ export const requestResetPushRegistration = async (): Promise<{ success: boolean
     const MatrixBackgroundSync = registerPlugin<MatrixBackgroundSyncPlugin>('MatrixBackgroundSync');
     const result = await MatrixBackgroundSync.requestDistributorSetup();
     console.log('[BackgroundSync] requestDistributorSetup completed:', result);
-    return result ?? { success: false };
+    if (!result?.success) return { success: false };
+
+    // Endpoint arrives asynchronously from the distributor after register().
+    for (let i = 0; i < 40; i += 1) {
+      await new Promise((resolve) => setTimeout(resolve, 250));
+      const status = await getBackgroundSyncStatus();
+      if (status?.registered && status.endpoint) {
+        return { success: true };
+      }
+      if (status?.lastFailure) {
+        console.warn('[BackgroundSync] Registration failed while waiting:', status.lastFailure);
+        return { success: false };
+      }
+    }
+
+    console.warn('[BackgroundSync] Distributor selected but no endpoint received in time');
+    return { success: false };
   } catch (err) {
     console.error('[BackgroundSync] requestDistributorSetup failed:', err);
     return { success: false };