SizeMetadataProvider.php

<?php

declare(strict_types=1);
/**
 * @copyright Copyright 2022 Carl Schwan <carl@carlschwan.eu>
 * @copyright Copyright 2022 Louis Chmn <louis@chmn.me>
 * @license AGPL-3.0-or-later
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * 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, version 3,
 * along with this program. If not, see <http://www.gnu.org/licenses/>
 *
 */

namespace OCA\Photos\Listener;

use OCA\Photos\AppInfo\Application;
use OCP\EventDispatcher\Event;
use OCP\EventDispatcher\IEventListener;
use OCP\Files\File;
use OCP\FilesMetadata\Event\MetadataLiveEvent;
use Psr\Log\LoggerInterface;

/**
 * @template-implements IEventListener<Event>
 */
class SizeMetadataProvider implements IEventListener {
	public function __construct(
		private LoggerInterface $logger
	) {
	}

	public function handle(Event $event): void {
		if (!($event instanceof MetadataLiveEvent)) {
			return;
		}

		$node = $event->getNode();

		if (!$node instanceof File) {
			return;
		}

		if (!in_array($node->getMimeType(), Application::IMAGE_MIMES)) {
			return;
		}

		$size = getimagesizefromstring($node->getContent());

		if ($size === false) {
			return;
		}

		$event->getMetadata()->setArray('photos-size', [
			'width' => $size[0],
			'height' => $size[1],
		]);
	}
}