nextcloud / announcementcenter

			$announcement = $this->manager->getAnnouncement($event->getObjectId(), true, false, false);

			$parsedParameters = $this->getParameters($event, $announcement);

			if ($parsedParameters['actor']['id'] === $this->activityManager->getCurrentUserId()) {

				$subject = $l->t('You announced {announcement}');

				unset($parsedParameters['actor']);

			} else {

				$subject = $l->t('{actor} announced {announcement}');

			}

			$event->setParsedMessage($announcement['message']);

		} catch (\InvalidArgumentException $e) {

			$parsedParameters = $this->getParameters($event, []);

			$event->setParsedMessage($announcement['message']);

		} catch (\InvalidArgumentException $e) {

			$parsedParameters = $this->getParameters($event, []);

			if ($parsedParameters['actor']['id'] === $this->activityManager->getCurrentUserId()) {

				$subject = $l->t('You posted an announcement');

				unset($parsedParameters['actor']);

			} else {

				$subject = $l->t('{actor} posted an announcement');

			}

			$event->setParsedMessage($l->t('Announcement does not exist anymore'));

		}