<?php
/**
 * functions.class.php
 * Created by Komma Mediadesign.
 * Author: mike
 * Date: 3/20/13
 */

class Fn
{
    public function __construct(){ }

    // Converts an string so it can be used in the url
    public static function encodeUrl($input)
    {
        // Remove whitespace
        $output = trim($input);

        // Lowercase
        $output = strtolower($output);

        // Replace &amp; with "en" or "and"
        switch(URL_LANG)
        {
            case 'en':
            $output = str_replace('&amp;', 'and', $output);
                break;
            case 'nl':
                $output = str_replace('&amp;', 'en', $output);
                break;
            case 'de':
                $output = str_replace('&amp;', 'und', $output);
                break;
            default:
                $output = str_replace('&amp;', 'and', $output);
        }

        // Replace special letters with normal letters
        $output = preg_replace( "`&([a-z])(acute|uml|circ|grave|ring|cedil|slash|tilde|caron|lig|quot|rsquo);`i","\\1", $output );

        // Remove html entities
        $pattern = '#(&)([a-z]*)([;$])#';
        $output = preg_replace($pattern,'',$output);

        // Remove all special characters
        $output = preg_replace('/[^a-zA-Z0-9_ %\[\]\.\(\)%&-]/s', '', $output);

        // Remove ( )
        $output = str_replace('(','',$output);
        $output = str_replace(')','',$output);
        $output = str_replace('.','',$output);


        // Replace spaces with a dash
        $output = str_replace(' ','-',$output);

        // Replace multiple dashes with one dash
        $output = preg_replace('/-{2,}/','-',$output);

        return $output;
    }

    /*
     * Headers a 404 error
     */
    public static function notFound()
    {
        header("HTTP/1.0 404 Not Found");
        header('location:' . LANG_ROOT . '404/');
        exit;
    }

    /*
     * Redirect to a page
     */
    public static function redirect($url)
    {
        header('location:' . $url);
        exit;
    }

    /*
     * Return a camelCase string
     */
    public static function camelCase($label)
    {
        $label = str_replace('-',' ',$label);
        $label = str_replace('_',' ',$label);
        $words = explode(' ',$label);

        $output = '';
        foreach($words as $i => $word)
        {
            $word = strtolower($word);
            if($i != 0) $word = ucfirst($word);
            $output .= $word;
        }
        return $output;
    }

    /*
     * Check if a string can be an e-mail address.
     */
    public static function checkMail($email) {
        // First, we check that there's one @ symbol, and that the lengths are right
        if (!preg_match("/^[^@]{1,64}@[^@]{1,255}$/", $email)) {
            // Email invalid because wrong number of characters in one section, or wrong number of @ symbols.
            return false;
        }
        // Split it into sections to make life easier
        $email_array = explode("@", $email);
        $local_array = explode(".", $email_array[0]);
        for ($i = 0; $i < sizeof($local_array); $i++) {
            if (!preg_match("/^(([A-Za-z0-9!#$%&'*+\/=?^_`{|}~-][A-Za-z0-9!#$%&'*+\/=?^_`{|}~\.-]{0,63})|(\"[^(\\|\")]{0,62}\"))$/", $local_array[$i])) {
                return false;
            }
        }
        if (!preg_match("/^\[?[0-9\.]+\]?$/", $email_array[1])) { // Check if domain is IP. If not, it should be valid domain name
            $domain_array = explode(".", $email_array[1]);
            if (sizeof($domain_array) < 2) {
                return false; // Not enough parts to domain
            }
            for ($i = 0; $i < sizeof($domain_array); $i++) {
                if (!preg_match("/^(([A-Za-z0-9][A-Za-z0-9-]{0,61}[A-Za-z0-9])|([A-Za-z0-9]+))$/", $domain_array[$i])) {
                    return false;
                }
            }
        }
        return true;
    }

    /*
     * Print
     */
    public static function pre_print($array)
    {
        if($_SERVER['REMOTE_ADDR'] == '212.61.130.133')
        {
            echo '<pre>';
            print_r($array);
            echo '</pre>';
            exit;
        }
    }

    /*
     * Checks whether input is a 2-dimensional or 1-dimensional array
     * If 1-dimensional it gets converted to a 2-dimensional array
     */
    public static function convert2D($array)
    {
        if( ! is_array($array[key($array)])) $array = array($array);
        return $array;
    }


    public static function detectMobile($justMobileOrTablet = '')
    {
        $browser['mobile'] = 0;
        $browser['tablet'] = 0;

        // Detect tablet
        if (preg_match('/(tablet|ipad|playbook)|(android(?!.*(mobi|opera mini)))/i', strtolower($_SERVER['HTTP_USER_AGENT']))) {
            $browser['tablet']++;
        }

        // Detect mobile
        if (preg_match('/(up.browser|up.link|mmp|symbian|smartphone|midp|wap|phone|android|iemobile)/i', strtolower($_SERVER['HTTP_USER_AGENT']))) {
            $browser['mobile']++;
        }
        if ((strpos(strtolower($_SERVER['HTTP_ACCEPT']),'application/vnd.wap.xhtml+xml') > 0) or ((isset($_SERVER['HTTP_X_WAP_PROFILE']) or isset($_SERVER['HTTP_PROFILE'])))) {
            $browser['mobile']++;
        }
        $mobile_ua = strtolower(substr($_SERVER['HTTP_USER_AGENT'], 0, 4));
        $mobile_agents = array(
            'w3c ','acs-','alav','alca','amoi','audi','avan','benq','bird','blac',
            'blaz','brew','cell','cldc','cmd-','dang','doco','eric','hipt','inno',
            'ipaq','java','jigs','kddi','keji','leno','lg-c','lg-d','lg-g','lge-',
            'maui','maxo','midp','mits','mmef','mobi','mot-','moto','mwbp','nec-',
            'newt','noki','palm','pana','pant','phil','play','port','prox',
            'qwap','sage','sams','sany','sch-','sec-','send','seri','sgh-','shar',
            'sie-','siem','smal','smar','sony','sph-','symb','t-mo','teli','tim-',
            'tosh','tsm-','upg1','upsi','vk-v','voda','wap-','wapa','wapi','wapp',
            'wapr','webc','winw','winw','xda ','xda-');
        if (in_array($mobile_ua,$mobile_agents)) {
            $browser['mobile']++;
        }
        if (strpos(strtolower($_SERVER['HTTP_USER_AGENT']),'opera mini') > 0) {
            $browser['mobile']++;
            //Check for tablets on opera mini alternative headers
            $stock_ua = strtolower(isset($_SERVER['HTTP_X_OPERAMINI_PHONE_UA'])?$_SERVER['HTTP_X_OPERAMINI_PHONE_UA']:(isset($_SERVER['HTTP_DEVICE_STOCK_UA'])?$_SERVER['HTTP_DEVICE_STOCK_UA']:''));
            if (preg_match('/(tablet|ipad|playbook)|(android(?!.*mobile))/i', $stock_ua)) {
                $browser['tablet']++;
            }
        }


        if(empty($justMobileOrTablet))
        {
            return $browser['mobile'] || $browser['tablet'];
        }
        else
        {
            return $browser[$justMobileOrTablet];
        }
    }
}