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<?php
/**
 * Copyright (C) 2022 Xibo Signage Ltd
 *
 * Xibo - Digital Signage - http://www.xibo.org.uk
 *
 * This file is part of Xibo.
 *
 * Xibo 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
 * any later version.
 *
 * Xibo 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 Xibo.  If not, see <http://www.gnu.org/licenses/>.
 */
namespace Xibo\Listener\OnFolderMoving;

use Xibo\Event\FolderMovingEvent;
use Xibo\Factory\FolderFactory;

class FolderListener
{
    /**
     * @var FolderFactory
     */
    private $folderFactory;

public function __construct(FolderFactory $folderFactory)
    {
        $this->folderFactory = $folderFactory;
    }

public function __invoke(FolderMovingEvent $event)
    {
        $merge = $event->getIsMerge();

if ($merge) {
            $folder = $event->getFolder();
            $newFolder = $event->getNewFolder();

// on merge we delete the original Folder and move its content to the new selected folder
            // sub-folders are moved to their new parent as well
            foreach (array_filter(explode(',', $folder->children)) as $childFolderId) {
                $childFolder = $this->folderFactory->getById($childFolderId, 0);
                $childFolder->updateFoldersAfterMove($folder->getId(), $newFolder->getId());
            }
        }
    }
}