nextcloud / server

		});

		// carddav/caldav sync event 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->addListener('\OCA\DAV\CardDAV\CardDavBackend::createCard', $listener);

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

		$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')

				);

			}

		});

		$clearPhotoCache = function($event) {

			if ($event instanceof GenericEvent) {