1 files changed, 111 insertions, 0 deletions
diff --git a/lib/private/TextToImage/Db/TaskMapper.php b/lib/private/TextToImage/Db/TaskMapper.php
new file mode 100644
index 00000000000..37f492e14cf
--- /dev/null
+++ b/lib/private/TextToImage/Db/TaskMapper.php
@@ -0,0 +1,111 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OC\TextToImage\Db;
+
+use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\AppFramework\Db\Entity;
+use OCP\AppFramework\Db\MultipleObjectsReturnedException;
+use OCP\AppFramework\Db\QBMapper;
+use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\DB\Exception;
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\IDBConnection;
+
+/**
+ * @extends QBMapper<Task>
+ */
+class TaskMapper extends QBMapper {
+	public function __construct(
+		IDBConnection $db,
+		private ITimeFactory $timeFactory,
+	) {
+		parent::__construct($db, 'text2image_tasks', Task::class);
+	}
+
+	/**
+	 * @param int $id
+	 * @return Task
+	 * @throws Exception
+	 * @throws DoesNotExistException
+	 * @throws MultipleObjectsReturnedException
+	 */
+	public function find(int $id): Task {
+		$qb = $this->db->getQueryBuilder();
+		$qb->select(Task::$columns)
+			->from($this->tableName)
+			->where($qb->expr()->eq('id', $qb->createPositionalParameter($id)));
+		return $this->findEntity($qb);
+	}
+
+	/**
+	 * @param int $id
+	 * @param string|null $userId
+	 * @return Task
+	 * @throws DoesNotExistException
+	 * @throws Exception
+	 * @throws MultipleObjectsReturnedException
+	 */
+	public function findByIdAndUser(int $id, ?string $userId): Task {
+		$qb = $this->db->getQueryBuilder();
+		$qb->select(Task::$columns)
+			->from($this->tableName)
+			->where($qb->expr()->eq('id', $qb->createPositionalParameter($id)));
+		if ($userId === null) {
+			$qb->andWhere($qb->expr()->isNull('user_id'));
+		} else {
+			$qb->andWhere($qb->expr()->eq('user_id', $qb->createPositionalParameter($userId)));
+		}
+		return $this->findEntity($qb);
+	}
+
+	/**
+	 * @param string $userId
+	 * @param string $appId
+	 * @param string|null $identifier
+	 * @return array
+	 * @throws Exception
+	 */
+	public function findUserTasksByApp(?string $userId, string $appId, ?string $identifier = null): array {
+		$qb = $this->db->getQueryBuilder();
+		$qb->select(Task::$columns)
+			->from($this->tableName)
+			->where($qb->expr()->eq('user_id', $qb->createPositionalParameter($userId)))
+			->andWhere($qb->expr()->eq('app_id', $qb->createPositionalParameter($appId)));
+		if ($identifier !== null) {
+			$qb->andWhere($qb->expr()->eq('identifier', $qb->createPositionalParameter($identifier)));
+		}
+		return $this->findEntities($qb);
+	}
+
+	/**
+	 * @param int $timeout
+	 * @return Task[] the deleted tasks
+	 * @throws Exception
+	 */
+	public function deleteOlderThan(int $timeout): array {
+		$datetime = $this->timeFactory->getDateTime();
+		$datetime->sub(new \DateInterval('PT' . $timeout . 'S'));
+		$qb = $this->db->getQueryBuilder();
+		$qb->select('*')
+			->from($this->tableName)
+			->where($qb->expr()->lt('last_updated', $qb->createPositionalParameter($datetime, IQueryBuilder::PARAM_DATETIME_MUTABLE)));
+		$deletedTasks = $this->findEntities($qb);
+		$qb = $this->db->getQueryBuilder();
+		$qb->delete($this->tableName)
+			->where($qb->expr()->lt('last_updated', $qb->createPositionalParameter($datetime, IQueryBuilder::PARAM_DATETIME_MUTABLE)));
+		$qb->executeStatement();
+		return $deletedTasks;
+	}
+
+	public function update(Entity $entity): Entity {
+		$entity->setLastUpdated($this->timeFactory->getDateTime());
+		return parent::update($entity);
+	}
+}