<?php
/*
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; under version 2
 * of the License (non-upgradable).
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Copyright (c) 2021  (original work) Open Assessment Technologies SA;
 */

declare(strict_types=1);

namespace oat\taoQtiItem\model\import\Validator\Rule;

use oat\oatbox\service\ConfigurableService;

abstract class AbstractGroupRule extends ConfigurableService
{
    protected function getGroupValues(array $context, string $groupName): array
    {
        $occurrences = [];

        foreach ($context as $headerName => $cellValue) {
            if (preg_match('/\b(' . $groupName . ')\b/', (string)$headerName) === 1) {
                $occurrences[$headerName] = $cellValue;
            }
        }

        return $occurrences;
    }
}