1 files changed, 75 insertions, 0 deletions
diff --git a/lib/private/Support/Subscription/Registry.php b/lib/private/Support/Subscription/Registry.php
new file mode 100644
index 00000000000..89439cb8142
--- /dev/null
+++ b/lib/private/Support/Subscription/Registry.php
@@ -0,0 +1,75 @@
+<?php
+declare(strict_types=1);
+
+/**
+ * @author Morris Jobke <hey@morrisjobke.de>
+ *
+ * @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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Support\Subscription;
+
+use OCP\Support\Subscription\Exception\AlreadyRegisteredException;
+use OCP\Support\Subscription\IRegistry;
+use OCP\Support\Subscription\ISubscription;
+use OCP\Support\Subscription\ISupportedApps;
+
+class Registry implements IRegistry {
+
+	/** @var ISubscription */
+	private $subscription = null;
+
+	/**
+	 * Register a subscription instance. In case it is called multiple times the
+	 * first one is used.
+	 *
+	 * @param ISubscription $subscription
+	 * @throws AlreadyRegisteredException
+	 *
+	 * @since 17.0.0
+	 */
+	public function register(ISubscription $subscription): void {
+		if ($this->subscription !== null) {
+			throw new AlreadyRegisteredException();
+		}
+		$this->subscription = $subscription;
+	}
+
+	/**
+	 * Fetches the list of app IDs that are supported by the subscription
+	 *
+	 * @since 17.0.0
+	 */
+	public function delegateGetSupportedApps(): array {
+		if ($this->subscription instanceof ISupportedApps) {
+			return $this->subscription->getSupportedApps();
+		}
+		return [];
+	}
+
+	/**
+	 * Indicates if a valid subscription is available
+	 *
+	 * @since 17.0.0
+	 */
+	public function delegateHasValidSubscription(): bool {
+		if ($this->subscription instanceof ISubscription) {
+			return $this->subscription->hasValidSubscription();
+		}
+		return false;
+	}
+}