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<?php
/**
 * @package         Regular Labs Library
 * @version         23.9.3039
 * 
 * @author          Peter van Westen <info@regularlabs.com>
 * @link            https://regularlabs.com
 * @copyright       Copyright © 2023 Regular Labs All Rights Reserved
 * @license         GNU General Public License version 2 or later
 */

defined('_JEXEC') or die;

use Joomla\CMS\HTML\HTMLHelper as JHtml;
use Joomla\CMS\Language\Text as JText;
use RegularLabs\Library\RegEx as RL_RegEx;

jimport('joomla.filesystem.folder');
jimport('joomla.filesystem.file');

if ( ! is_file(JPATH_LIBRARIES . '/regularlabs/autoload.php'))
{
    return;
}

require_once JPATH_LIBRARIES . '/regularlabs/autoload.php';

JFormHelper::loadFieldClass('list');

class JFormFieldRL_FileList extends JFormFieldList
{
    public  $type   = 'FileList';
    private $params = null;

    protected function getInput()
    {
        return parent::getInput();
    }

    protected function getOptions()
    {
        $options = [];

        $path = $this->get('folder');

        if ( ! is_dir($path))
        {
            $path = JPATH_ROOT . '/' . $path;
        }

        // Prepend some default options based on field attributes.
        if ( ! $this->get('hidenone', 0))
        {
            $options[] = JHtml::_('select.option', '-1', JText::alt('JOPTION_DO_NOT_USE',
                RL_RegEx::replace('[^a-z0-9_\-]', '_', $this->fieldname)));
        }

        if ( ! $this->get('hidedefault', 0))
        {
            $options[] = JHtml::_('select.option', '', JText::alt('JOPTION_USE_DEFAULT',
                RL_RegEx::replace('[^a-z0-9_\-]', '_', $this->fieldname)));
        }

        // Get a list of files in the search path with the given filter.
        $files = JFolder::files($path, $this->get('filter'));

        // Build the options list from the list of files.
        if (is_array($files))
        {
            foreach ($files as $file)
            {
                // Check to see if the file is in the exclude mask.
                if ($this->get('exclude'))
                {
                    if (RL_RegEx::match(chr(1) . $this->get('exclude') . chr(1), $file))
                    {
                        continue;
                    }
                }

                // If the extension is to be stripped, do it.
                if ($this->get('stripext', 1))
                {
                    $file = JFile::stripExt($file);
                }

                $label = $file;

                if ($this->get('language_prefix'))
                {
                    $label = JText::_($this->get('language_prefix') . strtoupper($label));
                }

                $options[] = JHtml::_('select.option', $file, $label);
            }
        }

        // Merge any additional options in the XML definition.
        $options = array_merge(parent::getOptions(), $options);

        return $options;
    }

    private function get($val, $default = '')
    {
        if (isset($this->element[$val]))
        {
            return (string) $this->element[$val] != '' ? (string) $this->element[$val] : $default;
        }

        if (isset($this->params[$val]))
        {
            return (string) $this->params[$val] != '' ? (string) $this->params[$val] : $default;
        }

        return $default;
    }
}