feat(files_reminders): add api controller

Signed-off-by: Christopher Ng <chrng8@gmail.com>
(cherry picked from commit a7892fb68228578f865e559f9442432ada95cde0)

3 files changed, 143 insertions, 0 deletions

diff --git a/apps/files_reminders/lib/Controller/ApiController.php b/apps/files_reminders/lib/Controller/ApiController.php
new file mode 100644
index 00000000000..b372a871e3b
--- /dev/null
+++ b/apps/files_reminders/lib/Controller/ApiController.php
@@ -0,0 +1,107 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 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\Controller;
+
+use DateTime;
+use DateTimeInterface;
+use DateTimeZone;
+use Exception;
+use OCA\FilesReminders\Service\ReminderService;
+use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\AppFramework\Http;
+use OCP\AppFramework\Http\JSONResponse;
+use OCP\AppFramework\OCSController;
+use OCP\IRequest;
+use OCP\IUserSession;
+use Psr\Log\LoggerInterface;
+use Throwable;
+
+class ApiController extends OCSController {
+	public function __construct(
+		string $appName,
+		IRequest $request,
+		protected ReminderService $reminderService,
+		protected IUserSession $userSession,
+		protected LoggerInterface $logger,
+	) {
+		parent::__construct($appName, $request);
+	}
+
+	/**
+	 * Get a reminder
+	 */
+	public function get(int $fileId): JSONResponse {
+		$user = $this->userSession->getUser();
+		if ($user === null) {
+			return new JSONResponse([], Http::STATUS_UNAUTHORIZED);
+		}
+
+		try {
+			$reminder = $this->reminderService->getDueForUser($user, $fileId);
+			$reminderData = [
+				'remindAt' => $reminder->getRemindAt()->format(DateTimeInterface::ATOM), // ISO 8601
+			];
+			return new JSONResponse($reminderData, Http::STATUS_OK);
+		} catch (DoesNotExistException $e) {
+			// Return null when no reminder is found
+			$reminderData = [
+				'remindAt' => null,
+			];
+			return new JSONResponse($reminderData, Http::STATUS_OK);
+		} catch (Throwable $th) {
+			$this->logger->error($th->getMessage(), ['exception' => $th]);
+			return new JSONResponse([], Http::STATUS_INTERNAL_SERVER_ERROR);
+		}
+	}
+
+	/**
+	 * Create a reminder
+	 *
+	 * @param string $remindAt ISO 8601 formatted date time string
+	 */
+	public function create(int $fileId, string $remindAt): JSONResponse {
+		try {
+			$remindAt = (new DateTime($remindAt))->setTimezone(new DateTimeZone('UTC'));
+		} catch (Exception $e) {
+			$this->logger->error($e->getMessage(), ['exception' => $e]);
+			return new JSONResponse([], Http::STATUS_BAD_REQUEST);
+		}
+
+		$user = $this->userSession->getUser();
+		if ($user === null) {
+			return new JSONResponse([], Http::STATUS_UNAUTHORIZED);
+		}
+
+		try {
+			$this->reminderService->create($user, $fileId, $remindAt);
+			return new JSONResponse([], Http::STATUS_OK);
+		} catch (Throwable $th) {
+			$this->logger->error($th->getMessage(), ['exception' => $th]);
+			return new JSONResponse([], Http::STATUS_INTERNAL_SERVER_ERROR);
+		}
+	}
+}
diff --git a/apps/files_reminders/lib/Db/ReminderMapper.php b/apps/files_reminders/lib/Db/ReminderMapper.php
index 4d1ebab35b1..7368ef2acc7 100644
--- a/apps/files_reminders/lib/Db/ReminderMapper.php
+++ b/apps/files_reminders/lib/Db/ReminderMapper.php
@@ -26,6 +26,7 @@ declare(strict_types=1);
 
 namespace OCA\FilesReminders\Db;
 
+use OCP\AppFramework\Db\DoesNotExistException;
 use OCP\AppFramework\Db\QBMapper;
 use OCP\DB\QueryBuilder\IQueryBuilder;
 use OCP\IDBConnection;
@@ -63,6 +64,23 @@ class ReminderMapper extends QBMapper {
 	}
 
 	/**
+	 * @throws DoesNotExistException
+	 */
+	public function findDueForUser(IUser $user, int $fileId): Reminder {
+		$qb = $this->db->getQueryBuilder();
+
+		$qb->select('user_id', 'file_id', 'remind_at', 'created_at', 'notified')
+			->from($this->getTableName())
+			->where($qb->expr()->eq('user_id', $qb->createNamedParameter($user->getUID(), IQueryBuilder::PARAM_STR)))
+			->andWhere($qb->expr()->eq('file_id', $qb->createNamedParameter($fileId, IQueryBuilder::PARAM_INT)))
+			->andWhere($qb->expr()->eq('notified', $qb->createNamedParameter(false, IQueryBuilder::PARAM_BOOL)))
+			->orderBy('created_at', 'DESC')
+			->setMaxResults(1);
+
+		return $this->findEntity($qb);
+	}
+
+	/**
 	 * @return Reminder[]
 	 */
 	public function findAll() {
diff --git a/apps/files_reminders/lib/Service/ReminderService.php b/apps/files_reminders/lib/Service/ReminderService.php
index 8411cdb9cf7..7106c8e5514 100644
--- a/apps/files_reminders/lib/Service/ReminderService.php
+++ b/apps/files_reminders/lib/Service/ReminderService.php
@@ -27,6 +27,7 @@ declare(strict_types=1);
 namespace OCA\FilesReminders\Service;
 
 use DateTime;
+use DateTimeZone;
 use InvalidArgumentException;
 use OCA\FilesReminders\AppInfo\Application;
 use OCA\FilesReminders\Db\Reminder;
@@ -57,6 +58,14 @@ class ReminderService {
 	}
 
 	/**
+	 * @throws DoesNotExistException
+	 */
+	public function getDueForUser(IUser $user, int $fileId): RichReminder {
+		$reminder = $this->reminderMapper->findDueForUser($user, $fileId);
+		return new RichReminder($reminder, $this->root);
+	}
+
+	/**
 	 * @return RichReminder[]
 	 */
 	public function getAll(?IUser $user = null) {
@@ -69,6 +78,15 @@ class ReminderService {
 		);
 	}
 
+	public function create(IUser $user, int $fileId, DateTime $remindAt): void {
+		$reminder = new Reminder();
+		$reminder->setUserId($user->getUID());
+		$reminder->setFileId($fileId);
+		$reminder->setRemindAt($remindAt);
+		$reminder->setCreatedAt(new DateTime('now', new DateTimeZone('UTC')));
+		$this->reminderMapper->insert($reminder);
+	}
+
 	/**
 	 * @throws DoesNotExistException
 	 * @throws UserNotFoundException