<?php
/*
 * Copyright (C) 2023 Xibo Signage Ltd
 *
 * Xibo - Digital Signage - https://xibosignage.com
 *
 * 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\Xmds\Listeners;

/**
 * A trait added to all Xmds Listeners
 */
trait XmdsListenerTrait
{
    /**
     * Get a Legacy ID we can use for older XMDS schema versions
     * @param int $id
     * @param int $offset
     * @return int
     */
    private function getLegacyId(int $id, int $offset): int
    {
        return ($id + $offset) * -1;
    }
}
