<?php
/**
 * @package         Components Anywhere
 * @version         4.10.1
 * 
 * @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\Plugin\System\ComponentsAnywhere;

defined('_JEXEC') or die;

use Joomla\CMS\Factory as JFactory;
use Joomla\CMS\Router\Route as JRoute;
use Joomla\CMS\Uri\Uri as JUri;

class Data
{
    static $credentials = null;

    public static function get($url)
    {
        $params = Params::get();

        if (JFactory::getApplication()->input->get('debug_component'))
        {
            echo "\n\n<pre>========Data==================\n";
            print_r(self::getUrl($url));
            echo "\n==========================</pre>\n\n";
        }

        $cookies = self::getCookies();

        if ($params->force_curl)
        {
            return Curl::get(self::getUrl($url), $cookies);
        }

        $data = Http::get(self::getUrl($url, $cookies));

        if ( ! empty($data))
        {
            return $data;
        }

        // Fall back on Curl if html is empty or not a json string
        return Curl::get(self::getUrl($url), $cookies);
    }

    public static function getAuthenticationCredentials()
    {
        if ( ! is_null(self::$credentials))
        {
            return self::$credentials;
        }

        if (isset($_SERVER['PHP_AUTH_USER']))
        {
            self::$credentials = [$_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW'] ?? ''];

            return self::$credentials;
        }

        if (isset($_SERVER['HTTP_AUTHENTICATION'])
            && strpos(strtolower($_SERVER['HTTP_AUTHENTICATION']), 'basic') === 0
        )
        {
            self::$credentials = explode(':', base64_decode(substr($_SERVER['HTTP_AUTHORIZATION'], 6)));

            return self::$credentials;
        }

        return false;
    }

    private static function getCookies()
    {
        $params = Params::get();

        if ( ! $params->pass_on_cookies)
        {
            return [];
        }

        $cookies = [];

        foreach ($_COOKIE as $k => $v)
        {
            // Only include hexadecimal keys
            // Why was this here?
//            if ( ! RL_RegEx::match('^[a-f0-9]+$', $k))
//            {
//                continue;
//            }

            $cookies[] = $k . '=' . $v;
        }

        return $cookies;
    }

    private static function getUrl($url, $cookies = [])
    {
        $params = Params::get();

        // Add the language to make sure the correct Itemid is found during routing
        $url .= (strpos($url, '?') === false ? '?' : '&') . 'lang=' . JFactory::getLanguage()->getTag();

        // Add cookies to the url
        if ( ! empty($cookies))
        {
            $url .= '&' . implode('&', $cookies);
        }

        // Pass url through the JRoute if it is a non-SEF url
        if (strpos($url, 'index.php?') !== false)
        {
            $url = JRoute::_($url, false);
        }

        // Add the Components Anywhere stuff to the sef/non-sef url
        $url .= (strpos($url, '?') === false ? '?' : '&') . 'tmpl=' . $params->tmpl . '&rendercomponent=1';

        return JUri::getInstance()->toString(['scheme', 'user', 'pass', 'host', 'port']) . '/' . ltrim($url, '/');
    }
}