<?php
/**
 * SugarCRM Community Edition is a customer relationship management program developed by
 * SugarCRM, Inc. Copyright (C) 2004-2013 SugarCRM Inc.
 *
 * SuiteCRM is an extension to SugarCRM Community Edition developed by SalesAgility Ltd.
 * Copyright (C) 2011 - 2018 SalesAgility Ltd.
 *
 * This program 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 with the addition of the following permission added
 * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
 * IN WHICH THE COPYRIGHT IS OWNED BY SUGARCRM, SUGARCRM DISCLAIMS THE WARRANTY
 * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 *
 * 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 along with
 * this program; if not, see http://www.gnu.org/licenses or write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 *
 * You can contact SugarCRM, Inc. headquarters at 10050 North Wolfe Road,
 * SW2-130, Cupertino, CA 95014, USA. or at email address contact@sugarcrm.com.
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License version 3.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "Powered by
 * SugarCRM" logo and "Supercharged by SuiteCRM" logo. If the display of the logos is not
 * reasonably feasible for technical reasons, the Appropriate Legal Notices must
 * display the words "Powered by SugarCRM" and "Supercharged by SuiteCRM".
 */

namespace SuiteCRM\Utility;

if (!defined('sugarEntry') || !sugarEntry) {
    die('Not A Valid Entry Point');
}

/**
 * Class StringUtils holds static methods to perform various operations with strings.
 */
class StringUtils
{
    /**
     * Converts a string from camelCase to snake_case
     *
     * @param string $input
     * @param bool   $uppercase
     *
     * @return string
     */
    public static function camelToUnderscoreCase($input, $uppercase = true)
    {
        $shards = self::explodeCamelCase($input);

        $return = implode('_', $shards);

        if ($uppercase) {
            $return = strtoupper($return);
        }

        return $return;
    }

    /**
     * Attempts to find a translation for a camel-cased string, like a class name.
     *
     * For instance, if you pass `ElasticSearchEngine` it will look for the label `LBL_ELASTIC_SEARCH_ENGINE`.
     *
     * @param string $input
     *
     * @return string
     */
    public static function camelToTranslation($input)
    {
        $label = 'LBL_' . StringUtils::camelToUnderscoreCase($input);
        $translation = translate($label);

        if ($label !== $translation) {
            return $translation;
        }

        return ucwords(implode(' ', self::explodeCamelCase($input)));
    }

    /**
     * Explodes a camel case string into its components.
     *
     * @param string $input
     *
     * @return string[]
     */
    public static function explodeCamelCase($input)
    {
        // Breaks the camel-cased word into matches
        preg_match_all('!([A-Z][A-Z0-9]*(?=$|[A-Z][a-z0-9])|[A-Za-z][a-z0-9]+)!', $input, $matches);

        $ret = $matches[0];

        foreach ($ret as &$match) {
            $match = $match == strtoupper($match) ? strtolower($match) : lcfirst($match);
        }

        return $ret;
    }
}