API: First steps to support subscriptions

src/Factory/Api/Mastodon/Subscription.php

@@ -0,0 +1,41 @@
+<?php
+/**
+ * @copyright Copyright (C) 2010-2021, the Friendica project
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * 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
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Friendica\Factory\Api\Mastodon;
+
+use Friendica\BaseFactory;
+use Friendica\Database\DBA;
+use Friendica\Model\Subscription as ModelSubscription;
+
+class Subscription extends BaseFactory
+{
+	/**
+	 * @param int $applicationid Application Id
+	 * @param int $uid           Item user
+	 *
+	 * @return \Friendica\Object\Api\Mastodon\Status
+	 */
+	public function createForApplicationIdAndUserId(int $applicationid, int $uid): \Friendica\Object\Api\Mastodon\Subscription
+	{
+		$subscription = DBA::selectFirst('subscription', ['application-id' => $applicationid, 'uid' => $uid]);
+		return new \Friendica\Object\Api\Mastodon\Subscription($subscription, ModelSubscription::getVapidKey());
+	}
+}