
addBehavior('publicBeforeDocument',array('publicLiveCounter','adjustCache'));

$core->addBehavior('templateBeforeValue',array('publicLiveCounter','templateBeforeValue'));

$core->tpl->addValue('ConnectedUsers',array('publicLiveCounter','tplConnectedUsers'));

$core->tpl->addBlock('ConnectedUsersIf',array('publicLiveCounter','tplConnectedUsersIf'));



class publicLiveCounter

{

	private static $connectedCounter = false;

	

	public static function initCounters()

	{

		$timeout = (integer) $GLOBALS['core']->blog->settings->get('lc_timeout');

		$dir = $GLOBALS['core']->blog->settings->get('lc_cache_dir');

		if (!is_dir($dir)) {

			try {files::makeDir($dir,true);}

			catch (Exception $e) {return;}

		}

		$file = $dir.DIRECTORY_SEPARATOR.md5(DC_MASTER_KEY.$GLOBALS['core']->blog->uid);

		

		self::$connectedCounter = new connectedCounter($file,$timeout);

		self::$connectedCounter->count();

		self::$connectedCounter->writeNewData();

	}



	public static function showInWidget($w)

	{

		global $core;

		

		if ($w->homeonly && $core->url->type != 'default') {

			return;

		}

		

		$sets = &$core->blog->settings;

		if ($timeout = (int) $w->timeout and $timeout != $sets->lc_timeout) {

			$sets->setNamespace('livecounter');

			$sets->put('lc_timeout',$timeout);

		}

		

		if (self::$connectedCounter !== false || self::initCounters() || true

		and !$c = self::$connectedCounter->count()

		or !$content = $c == 1 ? $w->content_one : $w->content) return;

		

		$show_users = '';

		if (strpos($content,'%2$s')) {

			$res = array();

			$pattern = $w->show_links ? '%1$s' : '%1$s';

			$nofollow = $sets->comments_nofollow ? ' rel="nofollow"' : '';

			foreach (self::$connectedCounter->result as $v)

			{

				$res[] = sprintf($v['site'] ? $pattern : '%1$s',

					html::escapeHTML($v['name']),

					html::escapeURL($v['site']),

					$nofollow);

			}

			$res = array(implode(', ',$res));

			

			if (($d = $c-count(self::$connectedCounter->result)) > 0

			and $pattern = $d < 2 ? $w->one_unknown : $w->more_unknown) {

				$res[] = sprintf($pattern,$d);

			}

			$show_users = implode(' '.__('and').' ',$res);

		}

		

		$content = sprintf($content,(string) $c,$show_users);

		

		$res = ''.

			($w->title ? ''.html::escapeHTML($w->title).'' : '').

			''.$content.'';

		

		return $res;

	}

	

	public static function tplConnectedUsers($attr)

	{

		return

		'count();} ?>';

	}

	

	public static function tplConnectedUsersIf($attr,$content)

	{

		$if = array();

		$operator = isset($attr['operator']) ? self::getOperator($attr['operator']) : '&&';

		

		if (isset($attr['number'])) {

			$if[] = '$lcc === '.(int) $attr['number'];

		}

		if (isset($attr['min'])) {

			$if[] = '$lcc >= '.(int) $attr['min'];

		}

		if (isset($attr['max'])) {

			$if[] = '$lcc <= '.(int) $attr['max'];

		}

		

		$res = 'count())';

		if (!empty($if)) {

			$res .= ' && ('.implode(' '.$operator.' ',$if).')';

		}

		$res .=  ') : ?>'.$content.'';

		

		return $res;

	}

	

	public static function templateBeforeValue(&$core,$id,$attr)

	{	

		if ($id == 'include' && isset($attr['src']) && $attr['src'] == '_head.html') {

			return

			'';

		}

	}

	

	public static function adjustCache(&$core)

	{

		if ($core->blog->settings->get('lc_no_browser_cache')) {

			$GLOBALS['mod_ts'] = array(time());

		}

	}



	public static function getOperator($op)

	{

		switch (strtolower($op))

		{

			case 'or':

			case '||':

				return '||';

			case 'and':

			case '&&':

			default:

				return '&&';

		}

	}

}

?>