<?php
/**
 * This is the activity module helper file
 *
 * PHP version 5
 *
 * @category   JFusion
 * @package    Modules
 * @subpackage Activity
 * @author     JFusion Team <webmaster@jfusion.org>
 * @copyright  2008 JFusion. All rights reserved.
 * @license    http://www.gnu.org/copyleft/gpl.html GNU/GPL
 * @link       http://www.jfusion.org
 */

// no direct access
defined('_JEXEC') or die('Restricted access');

/**
 * This is the activity module helper file
 *
 * @category   JFusion
 * @package    Modules
 * @subpackage Activity
 * @author     JFusion Team <webmaster@jfusion.org>
 * @copyright  2008 JFusion. All rights reserved.
 * @license    http://www.gnu.org/copyleft/gpl.html GNU/GPL
 * @link       http://www.jfusion.org
 */
class modjfusionActivityHelper
{

    /**
     * render a plugin
     *
     * @param array      &$results array of activity results
     * @param string     $jname    name of element
     * @param string     &$config  value of element
     * @param JParameter &$params  node of element
     *
     * @return string html
     */

    public static function appendAutoOutput(&$results, $jname, &$config, &$params)
    {
        $forum = JFusionFactory::getForum($jname);
        $public = JFusionFactory::getPublic($jname);
        if (is_array($results)) {
            foreach ($results as $r) {
	            $r->output = new stdClass();
                //get the Joomla userid
                $userlookup = JFusionFunction::lookupUser($jname, $r->userid, false, $r->username);

                //get the avatar of the logged in user
                if ($config['avatar']) {
                    // retrieve avatar
                    $avatarSrc =& $config['avatar_software'];
                    if (!empty($avatarSrc) && $avatarSrc!='jfusion' && !empty($userlookup)) {
                        $avatar = JFusionFunction::getAltAvatar($avatarSrc, $userlookup->id);
                    } else {
                        $avatar = $forum->getAvatar($r->userid);
                    }

                    if (empty($avatar)) {
                        $avatar = JFusionFunction::getJoomlaURL().'components/com_jfusion/images/noavatar.png';
                    }

                    $maxheight =& $config['avatar_height'];
                    $maxwidth =& $config['avatar_width'];
                    $size = ($config['avatar_keep_proportional']) ? @getimagesize($avatar) : false;

                    //size the avatar to fit inside the dimensions if larger
                    if ($size!==false && ($size[0] > $maxwidth || $size[1] > $maxheight)) {
                        $wscale = $maxwidth/$size[0];
                        $hscale = $maxheight/$size[1];
                        $scale = min($hscale, $wscale);
                        $w = floor($scale*$size[0]);
                        $h = floor($scale*$size[1]);
                    } elseif ($size!==false) {
                        //the avatar is within the limits
                        $w = $size[0];
                        $h = $size[1];
                    } else {
                        //getimagesize failed
                        $w = $maxwidth;
                        $h = $maxheight;
                    }

                    $r->output->avatar_source = $avatar;
                    $r->output->avatar_width = $w;
                    $r->output->avatar_height = $h;

                } else {
                    $r->output->avatar = '';
                }

                //process user info
                $r->output->display_name = ($config['display_name'] && !empty($r->name)) ? $r->name : $r->username;
                if (empty($r->guest) && $config['userlink']) {
                    if ($config['userlink_software']=='custom' && !empty($config['userlink_custom'])  && !empty($userlookup)) {
                        $user_url = $config['userlink_custom'].$userlookup->id;
                    } else {
                        $user_url = JFusionFunction::routeURL($forum->getProfileURL($r->userid, $r->username), $config['itemid'], $jname);
                    }

                    if (empty($user_url)) {
                        $user_url = '';
                    }

                    $r->output->profile_url = $user_url;
                } else {
                    $r->output->profile_url = '';
                }

                //process date info
                if ($config['showdate']) {
                    if ($config['showdate']==2) {
                        list( $count,$name ) = modjfusionActivityHelper::timeSince($r->dateline);
                    
                        $r->output->date = ($count == 1) ? '1 '.JText::_($name.'_AGO') : $count.' '.JText::_($name.'S_AGO');
                    } else {
                        jimport('joomla.utilities.date');
                        $JDate =  new JDate($r->dateline);
                        $JDate->setOffset($config['tz_offset']);
                        if (empty($config['date_format'])) {
                            $r->output->date = $JDate->toISO8601(true);
                        } else {
                            $r->output->date = $JDate->toFormat($config['date_format'],true);
                        }
                    }
                } else {
                    $r->output->date = '';
                }

                //process subject or body info
                $subject = (($config['replace_subject'] == 0 && empty($r->subject)) || $config['replace_subject'] == 1) ? $r->body : $r->subject;

                //make sure that a message is always shown
                if (empty($subject)) {
                    $subject = JText::_('NO_SUBJECT');
                } elseif (!empty($config['character_limit_subject']) && JString::strlen($subject) > $config['character_limit_subject']) {
                    //we need to shorten the subject
                    $subject = JString::substr($subject,0,$config['character_limit_subject']) . '...';
                }

                $r->output->subject = $subject;

                //combine all info into an url string
                if ($config['linktype'] == LINKPOST) {
                    $r->output->subject_url = JFusionFunction::routeURL($forum->getPostURL($r->threadid, $r->postid), $config['itemid'], $jname);
                } else {
                    $r->output->subject_url = JFusionFunction::routeURL($forum->getThreadURL($r->threadid), $config['itemid'], $jname);
                }

                if ($config['mode'] == LAT) {
                    if ($config['show_reply_num']) {
                        $existingthread = $forum->getThread($r->threadid);
                        $count = (!empty($existingthread)) ? $forum->getReplyCount($existingthread) : 0;
                        $reply = ($count==1) ? 'REPLY' : 'REPLIES';
                        $r->output->reply_count = $count . ' ' . JText::_($reply);
                    }

                    $r->body = '';
                } else {
                    //gotta make it presentable
                    if ($config['display_body']==1) {
                        $status = $public->prepareText($r->body, 'activity', $params, $r);
                        if (!empty($config['character_limit']) && empty($status['limit_applied']) && JString::strlen($r->body) > $config['character_limit']) {
                            $r->body = JString::substr($r->body,0,$config['character_limit']) . '...';
                        }
                    } else {
                        $r->body = '';
                    }
                }

                if ($config['shownew']) {
                    $r->output->newpost = $forum->checkReadStatus($r);
                } else {
                    $r->output->newpost = '';
                }
                $r->output->body = $r->body;
            }
        } else {
            //prevents an error in the output
            $results = array();
        }
    }

    /**
     * calculate time since value
     *
     * @param integer $original orignal time value
     *
     * @return array
     */
    function timeSince($original)
    {
        // array of time period chunks
        $chunks = array(
            array(60 * 60 * 24 * 365 , 'YEAR'),
            array(60 * 60 * 24 * 30 , 'MONTH'),
            array(60 * 60 * 24 * 7, 'WEEK'),
            array(60 * 60 * 24 , 'DAY'),
            array(60 * 60 , 'HOUR'),
            array(60 , 'MINUTE'),
            array(1 , 'SECOND')
        );
        $today = time(); /* Current unix time */

        $since = $today - $original;

        $count = 0;
        $name = '';
    
        // $j saves performing the count function each time around the loop
        for ($i = 0, $j = count($chunks); $i < $j; $i++) {
            $seconds = $chunks[$i][0];
            $name = $chunks[$i][1];
            //finding the biggest chunk (if the chunk fits, break)
            $count = floor($since / $seconds);
            if ($count != 0) {
                break;
            }
        }
        return array($count,$name);
    }    
}