<?php
/**
 * friendlyUrl.php
 * Created by Komma Mediadesign.
 * Author: mike
 * Date: 3/19/13
 */

function initFriendlyUrl($urlCountStart = 0, $addLanguage = 0)
{
    /**
     * 1. Get the REQUEST_URI and explode this on '/'
     */
    $stringUrl = substr($_SERVER['REQUEST_URI'],1);
    $urls = explode('/', $stringUrl);


    /**
     * Optional - redirect short links to the right page
     */

    if(strtolower($urls[0]) == 'iso16890'){

        $location = $_SERVER['HTTP_HOST'];
        $location .='/nl/normeringen/ISO16890';

        // redirect to ISO detail page
        header('Location: http://'.$location);
        exit;
    }

    if(strtolower($urls[0]) == 'infographic'){

        $location = $_SERVER['HTTP_HOST'];
        $location .='/public/docs/ISO16890_infographic_-_TOPS_Luchtfilters.pdf';

        // redirect to ISO detail page
        header('Location: http://'.$location);
        exit;
    }


    if(strtolower($urls[0]) == 'junior-logistiek-medewerker'){

        $location = $_SERVER['HTTP_HOST'];
        $location .='/200115_vacature_tops-website.pdf';

        // redirect to ISO detail page
        header('Location: http://'.$location);
        exit;
    }

    if(strtolower($urls[0]) == 'klantenservice-en-aanpakker'){

        $location = $_SERVER['HTTP_HOST'];
        $location .='/klantenservice-en-aanpakker.pdf';

        // redirect to ISO detail page
        header('Location: http://'.$location);
        exit;
    }


    /**
     * 2. If we have a language, the structure will be root.com/lang/page/sub/sub2/sub3
     * Check if the lang is valid, else header 404.
     * If no language is set, header to "nl".
     */
    $urlCount = $urlCountStart;

    if($addLanguage)
    {
        $languages = array('nl','en','de');
        $default = $languages[0];

        if(isset($urls[$urlCount]) && ! empty($urls[$urlCount]))
        {
            $lang = trim(urldecode($urls[$urlCount]));
            if(in_array($lang,$languages))
            {
                define('URL_LANG', $lang);
                define('LANG_ROOT', SITE_ROOT . $lang . '/');
            }
            else{
                define('LANG_ROOT', SITE_ROOT . $default . '/');
                Func::notFound();
            }
        }
        else{
            // redirect to default page
            header ('HTTP/1.1 301 Moved Permanently');
            header('Location: ' . SITE_ROOT . $default . '/');
            exit;
        }
        $urlCount++;
    }

    /**
     * 3. The second - or first if ! $addLanguage - GET-variable is $page
     */
    if(isset($urls[$urlCount]) && ! empty($urls[$urlCount]))
    {
        $page = trim(urldecode($urls[$urlCount]));
        if(!empty($page))
        {
            define('URL_PAGE', $page);
            $urlCount++;
        }
    }

    /**
     * 4. All the other get variables are called sub, sub2, sub3 etc.
     */
    $subtract = $addLanguage + $urlCountStart;
    if(count($urls) > $urlCount)
    {
        for($i=$urlCount;$i<=count($urls);$i++)
        {
            if(isset($urls[$i]))
            {
                $value = trim(urldecode($urls[$i]));
                $name = 'URL_SUB';
                if($i > $urlCount) $name.= $i-$subtract; // bv. -kms & -lang = -2
                if($value != '')
                {
                    define($name,$value);
                }
            }
        }
    }
}