<?php
    /**
     * @copyright (C) 2013 iJoomla, Inc. - All rights reserved.
     * @license GNU General Public License, version 2 (http://www.gnu.org/licenses/gpl-2.0.html)
     * @author iJoomla.com <webmaster@ijoomla.com>
     * @url https://www.jomsocial.com/license-agreement
     * The PHP code portions are distributed under the GPL license. If not otherwise stated, all images, manuals, cascading style sheets, and included JavaScript *are NOT GPL, and are released under the IJOOMLA Proprietary Use License v1.0
     * More info at https://www.jomsocial.com/license-agreement
     */

    defined('_JEXEC') or die('Restricted access');

    class CLinkGeneratorHelper
    {
        /**
         * Deprecated since 1.8
         * Use CLinkGeneratorHelper::replaceHyperlinks instead.
         */
        static public function linkURL($message)
        {
            return self::replaceURL($message);
        }

        /**
         * Replaces a given link to it's html format
         *
         * @param    $link    A valid link
         *
         * return    $url    HTML formatted codes that links to given link
         */
        static public function getURL($link)
        {
            $url = CStringHelper::trim($link);
            $pattern = "/^(https?|ftp)\:\/\/?(.*)?/i";

            if (preg_match($pattern, $url)) {
                return '<a href="' . $url . '" target="_blank" rel="nofollow">' . $url . '</a>';
            }

            return '<a href="http://' . $url . '" target="_blank" rel="nofollow">' . $url . '</a>';
        }

        /**
         * Replaces a given email to a hyperlinked html format
         *
         * @param    $email    A valid email
         *
         * return    $link    HTML formatted codes that links to given email
         */
        static public function getEmailURL($email)
        {
            $email = CStringHelper::trim($email);

            // @rule: Process email cloaking by Joomla. If it fails,
            // we will need to find another solution.
            //$link		= JHTML::_( 'email.cloak', $email );

            if (empty($link)) {
                $link = '<a href="mailto:' . $email . '">' . $email . '</a>';
            }

            return $link;
        }

        /**
         * Replaces a given link be it email or hyperlink and return the proper
         * counterparts.
         *
         * @param    $url    A valid url
         *
         * return    $link    HTML formatted codes that links to given email
         */
        static public function getHyperLink($url)
        {
            $link = CStringHelper::trim($url);

            //CFactory::load( 'helpers' , 'validate' );


            if (CValidateHelper::email($link)) {
                return self::getEmailURL($link);
            }

            if (CValidateHelper::url($link)) {
                return self::getURL($link);
            }

            // Since the link is really not a link, we just return the original format.
            return $link;
        }

        /**
         * Automatically hyperlink a user's link
         *
         * @param    $userId        User's id.
         * @param    $userName    Username of user.
         *
         * return    $urlLink    HTML codes that hyperlink to users profile.
         **/
        static public function getUserURL($userId, $userName, $email = false)
        {

            if($email){
                $url = CRoute::emailLink(
                    'index.php?option=com_community&view=profile&userid=' . $userId,
                    true
                );
            }else{
                $url = CRoute::_('index.php?option=com_community&view=profile&userid=' . $userId);
            }

            $urlLink = '<a href="' . $url . '" rel="nofollow">' . $userName . '</a>';

            return $urlLink;
        }

        /**
         * Automatically link urls in the provided message
         *
         * @param    $message    A string of message that may or may not contain a url.
         *
         * return    $message    A modified copy of the message with the proper hyperlinks.
         *
         * Link Test Case
         * Working:-
         * http://google.com
         * http://google.com.my
         * http://google.co
         * http://google.co.my
         * http://mail.google.com
         * http://mail.google.com.my
         * http://mail.google.co
         * http://mail.google.co.my
         * http://google.com?something=something
         * http://google.com.my?something=something
         * http://google.co?something=something
         * http://google.co.my?something=something
         * www.google.com
         * www.google.com?something=something
         * www.google.co
         * www.google.co?something=something
         * http://www.google.com
         * http://www.google.co
         *
         * None Workining:-
         * google.com
         *
         **/
        static public function replaceURL($message, $noFollow = false, $newWindow = false)
        {
            if ($message == '') {
                return '';
            }

            /*
            List of test url it need to pass

            http://www.dailypress.com/entertainment/galleriesandmuseums/dp-fea-mark-0508-20110506,0,5689988.story


            */

            $http = "";

            if (strpos($message, 'www') !== false && strpos($message, 'http://') === false && strpos(
                    $message,
                    'https://'
                ) === false
            ) {
                $http = "http://";
            }

            $replace = ($noFollow) ? ' rel="nofollow"' : '';
            $replace .= ($newWindow) ? ' target="_blank"' : '';

            $pattern = "/(((http[s]?:\/\/)|(www\.))(([a-z][-a-z0-9]+\.)?[a-z][-a-z0-9]+|\.[a-z]+(\.[a-z]{2,2})?)\/?[,a-z0-9._\/~#&=;%+?-]+[a-z0-9\/#=?_()]+)/is";
            $message = preg_replace($pattern, " <a href=\"" . $http . "$1\"" . $replace . ">$1</a>", $message);
            // fix URLs without protocols
            $message = preg_replace("/href='www/", "href='http://www", $message);

            return $message;
        }

    }

    /**
     * Deprecated since 1.8
     * Use CLinkGeneratorHelper::validateURL instead.
     */
    function cValidateURL($url)
    {
        //CFactory::load( 'helpers' , 'validate' );
        return CValidateHelper::url($url);
    }

    /**
     * Deprecated since 1.8
     * Use CLinkGeneratorHelper::validateEmail instead.
     */
    function cValidateEmails($email)
    {
        //CFactory::load( 'helpers' , 'validate');
        return CValidateHelper::email($data, $strict);
    }

    /**
     * Deprecated since 1.8
     * Use CLinkGeneratorHelper::replaceURL instead.
     */
    function cAutoLinkUrl($message)
    {
        return CLinkGeneratorHelper::replaceURL($message);
    }

    /**
     * Deprecated since 1.8
     * Use CLinkGeneratorHelper::getURL instead.
     */
    function cGenerateUrlLink($url)
    {
        return CLinkGeneratorHelper::getURL($url);
    }

    /**
     * Deprecated since 1.8
     * Use CLinkGeneratorHelper::getEmailURL instead.
     */
    function cGenerateEmailLink($email)
    {
        return CLinkGeneratorHelper::getEmailURL($email);
    }

    /**
     * Deprecated since 1.8
     * Use CLinkGeneratorHelper::getHyperLink instead.
     */
    function cGenerateHyperLink($hyperlink)
    {
        return CLinkGeneratorHelper::getHyperLink($hyperlink);
    }

    /**
     * Deprecated since 1.8
     * Use CLinkGeneratorHelper::getUserURL instead.
     */
    function cGenerateUserLink($userId, $userName)
    {
        return CLinkGeneratorHelper::getUserURL($userId, $userName);
    }

    /**
     * Deprecated since 1.8
     * Use CLinkGeneratorHelper::replaceURL instead.
     */
    function cGenerateURILinks($message)
    {
        return CLinkGeneratorHelper::replaceURL($message);
    }

    /**
     * Deprecated since 1.8
     * Use CUserHelper::replaceAliasURL instead.
     */
    function cGenerateUserAliasLinks($message)
    {
        return CUserHelper::replaceAliasURL($message);
    }