nextcloud / server

		$hm = $this->getContainer()->query(HookManager::class);

		$hm->setup();

		$listener = function($event) {

			if ($event instanceof GenericEvent) {

				/** @var BirthdayService $b */

				$b = $this->getContainer()->query(BirthdayService::class);

				$b->onCardChanged(

					$event->getArgument('addressBookId'),

					$event->getArgument('cardUri'),

					$event->getArgument('cardData')

				);

			}

		};

		$dispatcher = $this->getContainer()->getServer()->getEventDispatcher();

		$dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::createCard', $listener);

		$dispatcher = $this->getContainer()->getServer()->getEventDispatcher();

		$dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::createCard', $listener);

		$dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::updateCard', $listener);

		$dispatcher->addListener('\OCA\DAV\CardDAV\CardDavBackend::deleteCard', function($event) {

			if ($event instanceof GenericEvent) {

				/** @var BirthdayService $b */

				$b = $this->getContainer()->query(BirthdayService::class);

				$b->onCardDeleted(

					$event->getArgument('addressBookId'),

					$event->getArgument('cardUri')

				);

			}

		});

	}

	public function getSyncService() {