1 files changed, 81 insertions, 0 deletions
diff --git a/apps/dav/lib/CalDAV/Reminder/NotificationProviderManager.php b/apps/dav/lib/CalDAV/Reminder/NotificationProviderManager.php
new file mode 100644
index 00000000000..c9bcf2dd064
--- /dev/null
+++ b/apps/dav/lib/CalDAV/Reminder/NotificationProviderManager.php
@@ -0,0 +1,81 @@
+<?php
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2019, Thomas Citharel
+ * @copyright Copyright (c) 2019, Georg Ehrke
+ *
+ * @author Thomas Citharel <tcit@tcit.fr>
+ * @author Georg Ehrke <oc.list@georgehrke.com>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace OCA\DAV\CalDAV\Reminder;
+
+/**
+ * Class NotificationProviderManager
+ *
+ * @package OCA\DAV\CalDAV\Reminder
+ */
+class NotificationProviderManager {
+
+	/** @var INotificationProvider[] */
+	private $providers = [];
+
+	/**
+	 * Checks whether a provider for a given ACTION exists
+	 *
+	 * @param string $type
+	 * @return bool
+	 */
+	public function hasProvider(string $type):bool {
+		return (\in_array($type, ReminderService::REMINDER_TYPES, true)
+			&& isset($this->providers[$type]));
+	}
+
+	/**
+	 * Get provider for a given ACTION
+	 *
+	 * @param string $type
+	 * @return INotificationProvider
+	 * @throws NotificationProvider\ProviderNotAvailableException
+	 * @throws NotificationTypeDoesNotExistException
+	 */
+	public function getProvider(string $type):INotificationProvider {
+		if (in_array($type, ReminderService::REMINDER_TYPES, true)) {
+			if (isset($this->providers[$type])) {
+				return $this->providers[$type];
+			}
+			throw new NotificationProvider\ProviderNotAvailableException($type);
+		}
+		throw new NotificationTypeDoesNotExistException($type);
+	}
+
+	/**
+	 * Registers a new provider
+	 *
+	 * @param string $providerClassName
+	 * @throws \OCP\AppFramework\QueryException
+	 */
+	public function registerProvider(string $providerClassName):void {
+		$provider = \OC::$server->query($providerClassName);
+
+		if (!$provider instanceof INotificationProvider) {
+			throw new \InvalidArgumentException('Invalid notification provider registered');
+		}
+
+		$this->providers[$provider::NOTIFICATION_TYPE] = $provider;
+	}
+}