<?php
/**
 * @package         Regular Labs Library
 * @version         23.5.7450
 * 
 * @author          Peter van Westen <info@regularlabs.com>
 * @link            http://regularlabs.com
 * @copyright       Copyright © 2023 Regular Labs All Rights Reserved
 * @license         http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
 */

namespace RegularLabs\Library;

defined('_JEXEC') or die;

use RegularLabs\Library\CacheNew as Cache;
use SimpleXMLElement;

jimport('joomla.filesystem.file');

/**
 * Class File
 * @package RegularLabs\Library
 */
class Xml
{
    /**
     * Get an object filled with data from an xml file
     *
     * @param string $url
     * @param string $root
     *
     * @return object
     */
    public static function toObject($url, $root = '')
    {
        $cache = new Cache([__METHOD__, $url, $root]);

        if ($cache->exists())
        {
            return $cache->get();
        }

        if (strpos($url, '<') === false && file_exists($url))
        {
            $xml = @new SimpleXMLElement($url, LIBXML_NONET | LIBXML_NOCDATA, 1);
        }
        else
        {
            $xml = simplexml_load_string($url, "SimpleXMLElement", LIBXML_NONET | LIBXML_NOCDATA);
        }

        if ( ! @count($xml))
        {
            return $cache->set((object) []);
        }

        if ($root)
        {
            if ( ! isset($xml->{$root}))
            {
                return $cache->set((object) []);
            }

            $xml = $xml->{$root};
        }

        $json = json_encode($xml);
        $xml  = json_decode($json);
        if (is_null($xml))
        {
            $xml = (object) [];
        }

        if ($root && isset($xml->{$root}))
        {
            $xml = $xml->{$root};
        }

        return $cache->set($xml);
    }
}