1 files changed, 82 insertions, 0 deletions
diff --git a/apps/files_reminders/lib/Dav/PropFindPlugin.php b/apps/files_reminders/lib/Dav/PropFindPlugin.php
new file mode 100644
index 00000000000..e476c1a3b13
--- /dev/null
+++ b/apps/files_reminders/lib/Dav/PropFindPlugin.php
@@ -0,0 +1,82 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2024 Christopher Ng <chrng8@gmail.com>
+ *
+ * @author Christopher Ng <chrng8@gmail.com>
+ *
+ * @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\FilesReminders\Dav;
+
+use DateTimeInterface;
+use OCA\DAV\Connector\Sabre\Node;
+use OCA\FilesReminders\Service\ReminderService;
+use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\IUser;
+use OCP\IUserSession;
+use Sabre\DAV\INode;
+use Sabre\DAV\PropFind;
+use Sabre\DAV\Server;
+use Sabre\DAV\ServerPlugin;
+
+class PropFindPlugin extends ServerPlugin {
+
+	public const REMINDER_DUE_DATE_PROPERTY = '{http://nextcloud.org/ns}reminder-due-date';
+
+	public function __construct(
+		private ReminderService $reminderService,
+		private IUserSession $userSession,
+	) {
+	}
+
+	public function initialize(Server $server): void {
+		$server->on('propFind', [$this, 'propFind']);
+	}
+
+	public function propFind(PropFind $propFind, INode $node) {
+		if (!in_array(static::REMINDER_DUE_DATE_PROPERTY, $propFind->getRequestedProperties())) {
+			return;
+		}
+
+		if (!($node instanceof Node)) {
+			return;
+		}
+
+		$propFind->handle(
+			static::REMINDER_DUE_DATE_PROPERTY,
+			function () use ($node) {
+				$user = $this->userSession->getUser();
+				if (!($user instanceof IUser)) {
+					return '';
+				}
+
+				$fileId = $node->getId();
+				try {
+					$reminder = $this->reminderService->getDueForUser($user, $fileId);
+				} catch (DoesNotExistException $e) {
+					return '';
+				}
+
+				return $reminder->getDueDate()->format(DateTimeInterface::ATOM); // ISO 8601
+			},
+		);
+	}
+}