<?php
/* For licensing terms, see /license.txt */
/**
*	@package chamilo.admin
*/
/**
 * Code
 */
$language_file = array('admin', 'registration');
$cidReset = true;

require_once '../inc/global.inc.php';

$id_session = intval($_GET['id_session']);

SessionManager::protect_session_edit($id_session);

if (empty($id_session)) {
    api_not_allowed(true);
}

$course_info = api_get_course_info($_GET['course_code']);

if (empty($course_info)) {
    api_not_allowed(true);
}

$course_code    = $course_info['code'];
$courseId       = $course_info['real_id'];
$page           = isset($_GET['page']) ? intval($_GET['page']) : null;
$action         = isset($_REQUEST['action']) ? $_REQUEST['action'] : null;
$default_sort   = api_sort_by_first_name() ? 'firstname':'lastname';
$sort           = isset($_GET['sort']) && in_array($_GET['sort'], array('lastname','firstname','username')) ? $_GET['sort'] : $default_sort;
$idChecked      = isset($_GET['idChecked']) && (is_array($_GET['idChecked']) ? $_GET['idChecked'] : (is_array($_POST['idChecked']) ? $_POST['idChecked'] : null));

$direction      = isset($_GET['direction']) && in_array($_GET['direction'], array('desc','asc')) ? $_GET['direction'] : 'desc';

if (is_array($idChecked)) {
	$my_temp = array();
	foreach ($idChecked as $id){
		$my_temp[]= intval($id);// forcing the intval
	}
	$idChecked = $my_temp;
}

$session_info = SessionManager::fetch($id_session);
$courses = SessionManager::get_course_list_by_session_id($id_session);

if (!isset($courses[$course_info['real_id']])) {
	header('Location: session_course_list.php?id_session='.$id_session);
	exit();
}

switch ($action) {
    case 'delete':
        SessionManager::unsubscribe_user_from_course_session($id_session, $idChecked, $courseId);
        header('Location: '.api_get_self().'?id_session='.$id_session.'&course_code='.urlencode($course_code).'&sort='.$sort);
        exit;
        break;
    case 'add':
        SessionManager::subscribe_users_to_session_course($idChecked, $id_session, $courseId);
        header('Location: '.api_get_self().'?id_session='.$id_session.'&course_code='.urlencode($course_code).'&sort='.$sort);
        exit;
        break;
}


$limit  = 20;
$from   = $page * $limit;
$is_western_name_order = api_is_western_name_order();

$Users = SessionManager::get_users_in_course_session($courseId, $id_session, $sort, $direction, $from, $limit);

if ($direction == 'desc') {
    $direction = 'asc';
} else {
    $direction = 'desc';
}

$nbr_results = sizeof($Users);

$tool_name = get_lang('Session').': '.$session_info['name'].' - '.get_lang('Course').': '.$course_info['title'];

$interbreadcrumb[] = array("url" => "index.php","name" => get_lang('Sessions'));
$interbreadcrumb[] = array("url" => "session_list.php","name" => get_lang('SessionList'));
$interbreadcrumb[] = array('url' => "resume_session.php?id_session=".$id_session,"name" => get_lang('SessionOverview'));


Display::display_header($tool_name);

echo Display::page_header($tool_name);
?>
<form method="post" action="<?php echo api_get_self(); ?>?id_session=<?php echo $id_session; ?>&course_code=<?php echo urlencode($course_code); ?>&sort=<?php echo $sort; ?>" onsubmit="javascript:if(!confirm('<?php echo get_lang('ConfirmYourChoice'); ?>')) return false;">
<div align="right">
<?php
if($page) {
?>
<a href="<?php echo api_get_self(); ?>?id_session=<?php echo $id_session; ?>&course_code=<?php echo urlencode($course_code); ?>&page=<?php echo $page-1; ?>&sort=<?php echo $sort; ?>"><?php echo get_lang('Previous');?></a>
<?php
} else {
	echo get_lang('Previous');
}
?>
|
<?php
if ($nbr_results > $limit) {
?>
<a href="<?php echo api_get_self(); ?>?id_session=<?php echo $id_session; ?>&course_code=<?php echo urlencode($course_code); ?>&page=<?php echo $page+1; ?>&sort=<?php echo $sort; ?>"><?php echo get_lang('Next');?></a>
<?php
} else {
	echo get_lang('Next');
}
?>
</div>
<br />

<table class="data_table" width="100%">
<tr>
  <th>&nbsp;</th>
  <?php if ($is_western_name_order) { ?>
  <th><a href="<?php echo api_get_self(); ?>?id_session=<?php echo $id_session; ?>&course_code=<?php echo urlencode($course_code); ?>&sort=firstname&direction=<?php echo urlencode($direction); ?>"><?php echo get_lang('FirstName');?></a></th>
  <th><a href="<?php echo api_get_self(); ?>?id_session=<?php echo $id_session; ?>&course_code=<?php echo urlencode($course_code); ?>&sort=lastname&direction=<?php echo urlencode($direction); ?>"><?php echo get_lang('LastName');?></a></th>
  <?php } else { ?>
  <th><a href="<?php echo api_get_self(); ?>?id_session=<?php echo $id_session; ?>&course_code=<?php echo urlencode($course_code); ?>&sort=lastname&direction=<?php echo urlencode($direction); ?>"><?php echo get_lang('LastName');?></a></th>
  <th><a href="<?php echo api_get_self(); ?>?id_session=<?php echo $id_session; ?>&course_code=<?php echo urlencode($course_code); ?>&sort=firstname&direction=<?php echo urlencode($direction); ?>"><?php echo get_lang('FirstName');?></a></th>
  <?php } ?>
  <th><a href="<?php echo api_get_self(); ?>?id_session=<?php echo $id_session; ?>&course_code=<?php echo urlencode($course_code); ?>&sort=username&direction=<?php echo urlencode($direction); ?>"><?php echo get_lang('Login');?></a></th>
  <th><?php echo get_lang('Actions');?></th>
</tr>

<?php
$i=0;
if (!empty($Users)) {
    foreach ($Users as $key=>$enreg) {
        if ($key == $limit) {
            break;
        }
        ?>
        <tr class="<?php echo $i?'row_odd':'row_even'; ?>">
            <td><input type="checkbox" name="idChecked[]" value="<?php echo $enreg['user_id']; ?>"></td>
            <?php if ($is_western_name_order) { ?>
            <td><?php echo api_htmlentities($enreg['firstname'],ENT_QUOTES,$charset); ?></td>
            <td><?php echo api_htmlentities($enreg['lastname'],ENT_QUOTES,$charset); ?></td>
            <?php } else { ?>
            <td><?php echo api_htmlentities($enreg['lastname'],ENT_QUOTES,$charset); ?></td>
            <td><?php echo api_htmlentities($enreg['firstname'],ENT_QUOTES,$charset); ?></td>
            <?php } ?>
            <td><?php echo api_htmlentities($enreg['username'],ENT_QUOTES,$charset); ?></td>
            <td>
            <?php if ($enreg['is_subscribed']) { ?>
                <a href="<?php echo api_get_self(); ?>?id_session=<?php echo $id_session; ?>&course_code=<?php echo urlencode($course_code); ?>&sort=<?php echo $sort; ?>&action=delete&idChecked[]=<?php echo $enreg['user_id']; ?>" onclick="javascript:if(!confirm('<?php echo get_lang('ConfirmYourChoice'); ?>')) return false;">
                    <?php Display::display_icon('delete.png', get_lang('Delete')); ?>
                </a>
            <?php } else  { ?>
                <a href="<?php echo api_get_self(); ?>?id_session=<?php echo $id_session; ?>&course_code=<?php echo urlencode($course_code); ?>&sort=<?php echo $sort; ?>&action=add&idChecked[]=<?php echo $enreg['user_id']; ?>" onclick="javascript:if(!confirm('<?php echo get_lang('ConfirmYourChoice'); ?>')) return false;">
                    <?php Display::display_icon('add.png', get_lang('Add'), array(), ICON_SIZE_SMALL); ?>
                </a>
            <?php }  ?>

            </td>
        </tr>
        <?php
            $i=$i ? 0 : 1;
    }
}
unset($Users);
?>

</table>
<br />
<div align="left">
    <?php
    if($page) {
    ?>
    <a href="<?php echo api_get_self(); ?>?id_session=<?php echo $id_session; ?>&course_code=<?php echo urlencode($course_code); ?>&page=<?php echo $page-1; ?>&sort=<?php echo $sort; ?>"><?php echo get_lang('Previous'); ?></a>
    <?php
    } else {
        echo get_lang('Previous');
    }
    ?>
    |
    <?php
    if($nbr_results > $limit) {
    ?>
    <a href="<?php echo api_get_self(); ?>?id_session=<?php echo $id_session; ?>&course_code=<?php echo urlencode($course_code); ?>&page=<?php echo $page+1; ?>&sort=<?php echo $sort; ?>"><?php echo get_lang('Next'); ?></a>
    <?php
    } else {
        echo get_lang('Next');
    }
    ?>
</div>
<br />
<select name="action">
<option value="delete"><?php echo get_lang('UnsubscribeSelectedUsersFromSession');?></option>
<option value="add"><?php echo get_lang('AddUsers');?></option>
</select>
<button class="save" type="submit"> <?php echo get_lang('Ok'); ?></button>
</form>
<?php
Display::display_footer();