1 files changed, 67 insertions, 0 deletions
diff --git a/lib/Controller/WatchController.php b/lib/Controller/WatchController.php
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+++ b/lib/Controller/WatchController.php
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+<?php
+/**
+ * @copyright Copyright (c) 2017 Vinzenz Rosenkranz <vinzenz.rosenkranz@gmail.com>
+ *
+ * @author René Gieling <github@dartcafe.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 OCA\Polls\Controller;
+
+use OCP\IRequest;
+use OCP\AppFramework\Controller;
+use OCP\AppFramework\Http\DataResponse;
+use OCA\Polls\Exceptions\NoUpdatesException;
+use OCA\Polls\Service\WatchService;
+
+class WatchController extends Controller {
+
+	/** @var WatchService */
+	private $watchService;
+
+	use ResponseHandle;
+
+	public function __construct(
+		string $appName,
+		IRequest $request,
+		WatchService $watchService
+	) {
+		parent::__construct($appName, $request);
+		$this->watchService = $watchService;
+	}
+
+	/**
+	 * Watch poll for updates
+	 * @NoAdminRequired
+	 * @NoCSRFRequired
+	 */
+	public function watchSinglePoll(int $pollId, ?int $offset = 0): DataResponse {
+		return $this->responseLong(function () use ($pollId, $offset) {
+			$start = time();
+			$timeout = 30;
+			while (empty($updates) && time() <= $start + $timeout) {
+				sleep(1);
+				$updates = $this->watchService->getUpdates($pollId, $offset ? $offset : $start);
+			}
+			if (empty($updates)) {
+				throw new NoUpdatesException;
+			}
+			return ['updates' => $updates];
+		});
+	}
+}