Add fallback to synchronous fetch when onCreate() fails

Co-authored-by: adbenitez <24558636+adbenitez@users.noreply.github.com>

src/main/java/org/thoughtcrime/securesms/service/FetchForegroundService.java

@@ -88,7 +88,27 @@ public final class FetchForegroundService extends Service {
       .setSmallIcon(R.drawable.notification_permanent)
       .build();
 
-    startForeground(NotificationCenter.ID_FETCH, notification);
+    try {
+      startForeground(NotificationCenter.ID_FETCH, notification);
+    } catch (Exception e) {
+      Log.w(TAG, "Failed to start foreground service, falling back to synchronous fetch", e);
+      synchronized (SERVICE_LOCK) {
+        service = null;
+      }
+      stopSelf();
+      // Fallback to synchronous fetching when foreground service fails
+      fetchingSynchronously = true;
+      if (ApplicationContext.getDcAccounts().backgroundFetch(10)) {
+        synchronized (STOP_NOTIFIER) {
+          while (fetchingSynchronously) {
+            try {
+              STOP_NOTIFIER.wait();
+            } catch (InterruptedException ex) {}
+          }
+        }
+      }
+      return;
+    }
 
     Util.runOnAnyBackgroundThread(() -> {
       Log.i(TAG, "Starting fetch");