Implement the notifications app as IDeferrableApp

Signed-off-by: Joas Schilling <coding@schilljs.com>

lib/App.php

@@ -23,11 +23,11 @@
 
 
 use OCA\Notifications\Exceptions\NotificationNotFoundException;
-use OCP\Notification\IApp;
+use OCP\Notification\IDeferrableApp;
 use OCP\Notification\INotification;
 use Symfony\Component\Console\Output\OutputInterface;
 
-class App implements IApp {
+class App implements IDeferrableApp {
 	/** @var Handler */
 	protected $handler;
 	/** @var Push */
@@ -50,14 +50,12 @@ public function setOutput(OutputInterface $output): void {
 	public function notify(INotification $notification): void {
 		$notificationId = $this->handler->add($notification);
 
-		$this->push->deferPayloads();
 		try {
 			$notificationToPush = $this->handler->getById($notificationId, $notification->getUser());
 			$this->push->pushToDevice($notificationId, $notificationToPush);
 		} catch (NotificationNotFoundException $e) {
 			throw new \InvalidArgumentException('Error while preparing push notification');
 		}
-		$this->push->flushPayloads();
 	}
 
 	/**
@@ -76,12 +74,18 @@ public function getCount(INotification $notification): int {
 	public function markProcessed(INotification $notification): void {
 		$deleted = $this->handler->delete($notification);
 
-		$this->push->deferPayloads();
 		foreach ($deleted as $user => $notifications) {
 			foreach ($notifications as $notificationId) {
 				$this->push->pushDeleteToDevice($user, $notificationId);
 			}
 		}
+	}
+
+	public function defer(): void {
+		$this->push->deferPayloads();
+	}
+
+	public function flush(): void {
 		$this->push->flushPayloads();
 	}
 }