<?php
// Dokeos Header here

/**
 * @todo variables are sometimes in cammelcase, or even worse a mixture of CammelCase and udnerscoring: $a_userList
 * 
 */
 
// name of the language file that needs to be included 
$language_file = array ('index', 'chat', 'tracking');

include_once("./main/inc/global.inc.php");
api_block_anonymous_users();


$tbl_session = Database :: get_main_table(TABLE_MAIN_SESSION);
$tbl_session_course = Database :: get_main_table(TABLE_MAIN_SESSION_COURSE);

/*
-----------------------------------------------------------
	Header
	include the HTTP, HTML headers plus the top banner
-----------------------------------------------------------
*/

Display::display_header(get_lang('UserOnlineListSession'));
?>
<br/><br/>
<table class="data_table" width="60%">
	<tr class="tableName">
		<td colspan="4">
			<strong><?php echo get_lang('UserOnlineListSession'); ?></strong>
		</td>
	</tr>
	<tr>
		<th class="head">
			<?php echo get_lang('Name'); ?>
		</th>
		<th class="head">
			<?php echo get_lang('InCourse'); ?>
		</th>
		<th class="head">
			<?php echo get_lang('Email'); ?>
		</th>
		<th class="head">
			<?php echo get_lang('Chat'); ?>
		</th>
	</tr>
<?php
	$sessionIsCoach = array();
	$result = api_sql_query("SELECT DISTINCT id, 
									name, 
									date_start, 
									date_end 
								FROM $tbl_session as session 
								INNER JOIN $tbl_session_course as session_rel_course
									ON session_rel_course.id_coach = ".$_user['user_id']."
									AND session.id = session_rel_course.id_session
								ORDER BY date_start, date_end, name",__FILE__,__LINE__);
	
	while ($session = Database:: fetch_array($result))
	{
		$sessionIsCoach[$session['id']] = $session;
	}
	
	$result = api_sql_query("SELECT DISTINCT id, 
									name, 
									date_start, 
									date_end 
							FROM $tbl_session as session 
							WHERE session.id_coach = ".$_user['user_id']."
							ORDER BY date_start, date_end, name",__FILE__,__LINE__);
	while ($session = Database:: fetch_array($result))
	{
		$sessionIsCoach[$session['id']] = $session;
	}
		
	foreach($sessionIsCoach as $session)
	{
		$sql = "SELECT 	DISTINCT last_access.access_user_id, 
						last_access.access_date, 
						last_access.access_cours_code,
						last_access.access_session_id,
						CONCAT(user.lastname,' ',user.firstname) as name,
						user.email
				FROM ".Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_LASTACCESS)." AS last_access
				INNER JOIN ".Database::get_main_table(TABLE_MAIN_USER)." AS user
					ON user.user_id = last_access.access_user_id
				WHERE access_session_id='".$session['id']."' 
				AND NOW()-access_date<1000 GROUP BY access_user_id
			   ";
		
		$result = api_sql_query($sql,__FILE__,__LINE__);
		
		while($a_userList = mysql_fetch_array($result))
		{
			$a_onlineStudent[$a_userList['access_user_id']] = $a_userList;
		}
	}
	
	if(count($a_onlineStudent)>0)
	{
		foreach($a_onlineStudent as $onlineStudent)
		{
			echo "<tr>
					<td>
				";
			echo		$onlineStudent['name'];
			echo "	</td>
					<td align='center'>
				 ";
			echo		$onlineStudent['access_cours_code'];
			echo "	</td>
					<td align='center'>
				 ";
						 if(!empty($onlineStudent['email']))
						 {
							echo $onlineStudent['email'];
						 }
						 else
						 {
						 	echo get_lang('NoEmail');
						 }	 
			echo "	</td>
					<td align='center'>
				 ";
			echo '<a href="main/chat/chat.php?cidReq='.$onlineStudent['access_cours_code'].'&id_session='.$onlineStudent['access_session_id'].'"> -> </a>';
			echo "	</td>
				</tr>
				 ";
		}
	}
	else
	{
		echo '	<tr>
					<td colspan="4">
						'.get_lang('NoOnlineStudents').'
					</td>
				</tr>
			 ';
	}
?>
</table>
<?php
/*
==============================================================================
		FOOTER
==============================================================================
*/

Display::display_footer();
?>