<?php

class Qs_Url
{
    public static function parse($url)
    {
        $info = parse_url($url);
        $alias = str_replace(WEB_PATH, '', $info['path']);
        if (strlen($alias) && $alias[0] == '/') {
            $alias = substr($alias, 1);
        }
        $parts = explode('/', $alias);
        if (count($parts) > 0) {
            if (Qs_Language::exists($parts[0])) {
                $info['language'] = $parts[0];
                array_shift($parts);
                $alias = implode('/', $parts);
            }
        }
        if (!isset($info['language'])) {
            $info['language'] = Qs_Constant::get('DEFAULT_LANGUAGE');
        }
        $info['alias'] = $alias;
        return $info;
    }

    public static function parseTarget($url)
    {
        if (empty($url)) {
            return '_self';
        }
        if (stripos($url, '://')) {
            $url = substr($url, strpos($url, ':') + 3);
            $baseUrl = substr(BASE_URL, strpos(BASE_URL, ':') + 3);
            if (strpos($url, $baseUrl) !== 0) {
                return '_blank';
            } else {
                return '_self';
            }
        } else {
            return '_self';
        }
    }
}