<?php
/* For licensing terms, see /license.txt */

/**
 *	Code to display the course settings form (for the course admin)
 *	and activate the changes.
 *
 *	See ./inc/conf/course_info.conf.php for settings
 * @todo Move $canBeEmpty from course_info.conf.php to config-settings
 * @todo Take those config settings into account in this script
 * @author Patrick Cool <patrick.cool@UGent.be>
 * @author Roan Embrechts, refactoring
 * and improved course visibility|subscribe|unsubscribe options
 * @package chamilo.course_info
 */

/*	   INIT SECTION */

// Language files that need to be included
$language_file = array('create_course', 'course_info', 'admin');
require_once '../inc/global.inc.php';
$current_course_tool  = TOOL_COURSE_SETTING;
$this_section = SECTION_COURSES;

$nameTools = get_lang('ModifInfo');

/*	Libraries */
require_once api_get_path(INCLUDE_PATH).'conf/course_info.conf.php';
require_once api_get_path(LIBRARY_PATH).'pdf.lib.php';

api_protect_course_script(true);
api_block_anonymous_users();

/*	Constants and variables */
define('MODULE_HELP_NAME', 'Settings');
define('COURSE_CHANGE_PROPERTIES', 'COURSE_CHANGE_PROPERTIES');

$currentCourseRepository    = $_course['path'];
$is_allowedToEdit 			= $is_courseAdmin || $is_platformAdmin;

$course_code 				= $_course['sysCode'];
$course_access_settings 	= CourseManager :: get_access_settings($course_code);

$video_conference_enabled = false;
if (api_get_setting('bbb_plugin') == 'true') {
    $video_conference_enabled = true;
}


//LOGIC FUNCTIONS
function is_settings_editable() {
	return $GLOBALS['course_info_is_editable'];
}

/* MAIN CODE */
if (!$is_allowedToEdit) {
	api_not_allowed(true);
}

$show_delete_watermark_text_message = false;
if (api_get_setting('pdf_export_watermark_by_course') == 'true') {
    if (isset($_GET['delete_watermark'])) {
        PDF::delete_watermark($course_code);
        $show_delete_watermark_text_message = true;        
    }
}
$table_course_category = Database :: get_main_table(TABLE_MAIN_CATEGORY);
$tbl_user              = Database :: get_main_table(TABLE_MAIN_USER);
$tbl_admin             = Database :: get_main_table(TABLE_MAIN_ADMIN);
$tbl_course_user       = Database :: get_main_table(TABLE_MAIN_COURSE_USER);
$tbl_course            = Database :: get_main_table(TABLE_MAIN_COURSE);

// Get all course categories
$sql = "SELECT code,name FROM ".$table_course_category." WHERE auth_course_child ='TRUE'  OR code = '".Database::escape_string($_course['categoryCode'])."'  ORDER BY tree_pos";
$res = Database::query($sql);

$s_select_course_tutor_name = "SELECT tutor_name FROM $tbl_course WHERE code='$course_code'";
$q_tutor = Database::query($s_select_course_tutor_name);
$s_tutor = Database::result($q_tutor, 0, 'tutor_name');

$target_name = api_sort_by_first_name() ? 'firstname' : 'lastname';
$s_sql_course_titular = "SELECT DISTINCT username, lastname, firstname FROM $tbl_user as user, $tbl_course_user as course_rel_user WHERE (course_rel_user.status='1') AND user.user_id=course_rel_user.user_id AND course_code='".$course_code."' ORDER BY ".$target_name." ASC";
$q_result_titulars = Database::query($s_sql_course_titular);

if (Database::num_rows($q_result_titulars) == 0) {
	$sql = "SELECT username, lastname, firstname FROM $tbl_user as user, $tbl_admin as admin WHERE admin.user_id=user.user_id ORDER BY ".$target_name." ASC";
	$q_result_titulars = Database::query($sql);
}

$a_profs[0] = '-- '.get_lang('NoManager').' --';
while ($a_titulars = Database::fetch_array($q_result_titulars)) {
	$s_username = $a_titulars['username'];
	$s_lastname = $a_titulars['lastname'];
	$s_firstname = $a_titulars['firstname'];

	if (api_get_person_name($s_firstname, $s_lastname) == $s_tutor) {
		$s_selected_tutor = api_get_person_name($s_firstname, $s_lastname);
	}
	$s_disabled_select_titular = '';
	if (!$is_courseAdmin) {
		$s_disabled_select_titular = 'disabled=disabled';
	}
	$a_profs[api_get_person_name($s_firstname, $s_lastname)] = api_get_person_name($s_lastname, $s_firstname).' ('.$s_username.')';
}

$categories[''] = '-';
while ($cat = Database::fetch_array($res)) {
	$categories[$cat['code']] = '('.$cat['code'].') '.$cat['name'];
	ksort($categories);
}

$linebreak = '<div class="row"><div class="label"></div><div class="formw" style="border-bottom:1px dashed grey"></div></div>';

// Build the form
$form = new FormValidator('update_course');

// COURSE SETTINGS
$form->addElement('html', '<div><h3>'.Display::return_icon('settings.png', Security::remove_XSS(get_lang('CourseSettings')),'',ICON_SIZE_SMALL).' '.Security::remove_XSS(get_lang('CourseSettings')).'</h3><div>');

$image_html = '';

// Sending image
if ($form->validate() && is_settings_editable()) {	
    // update course picture
    $picture = $_FILES['picture'];
    if (!empty($picture['name'])) {
        $picture_uri = CourseManager::update_course_picture($course_code, $picture['name'], $picture['tmp_name']);
    }
}
    
// Display course picture
$course_path = api_get_path(SYS_COURSE_PATH).$currentCourseRepository;   // course path
if (file_exists($course_path.'/course-pic85x85.png')) {
    $course_web_path = api_get_path(WEB_COURSE_PATH).$currentCourseRepository;   // course web path
    $course_medium_image = $course_web_path.'/course-pic85x85.png?'.rand(1,1000); // redimensioned image 85x85
    $image_html =  '<div class="row"><div class="formw"><img src="'.$course_medium_image.'" /></div></div>';
}
$form->addElement('html', $image_html);


$form->add_textfield('title', get_lang('Title'), true, array('class' => 'span6'));
//$form->applyFilter('title', 'html_filter');
$form->applyFilter('title', 'trim');

//$form->add_textfield('tutor_name', get_lang('Professors'), true, array ('size' => '60'));

//the teacher doesn't need to change the trainer only the admin can do that
/*
$prof = &$form->addElement('select', 'tutor_name', get_lang('Teacher'), $a_profs, array('style'=>'width:350px', 'class'=>'chzn-select', 'id'=>'tutor_name'));
$form->applyFilter('tutor_name', 'html_filter');
$prof -> setSelected($s_selected_tutor);
 * /

/*$visual_code=$form->addElement('text', 'visual_code', get_lang('Code'));
$visual_code->freeze();
$form->applyFilter('visual_code', 'strtoupper');*/

$form->addElement('select', 'category_code', get_lang('Fac'), $categories, array('style'=>'width:350px', 'class'=>'chzn-select', 'id'=>'category_code'));
$form->addElement('select_language', 'course_language', array(get_lang('Ln'), get_lang('TipLang')));

$form->add_textfield('department_name', get_lang('Department'), false, array('class' => 'span5'));
$form->applyFilter('department_name', 'trim');

$form->add_textfield('department_url', get_lang('DepartmentUrl'), false, array('class' => 'span5'));
//$form->addRule('tutor_name', get_lang('ThisFieldIsRequired'), 'required');


// Picture
$form->addElement('file', 'picture', get_lang('AddPicture'));
$allowed_picture_types = array ('jpg', 'jpeg', 'png', 'gif');
$form->addRule('picture', get_lang('OnlyImagesAllowed').' ('.implode(',', $allowed_picture_types).')', 'filetype', $allowed_picture_types);

if (api_get_setting('pdf_export_watermark_by_course') == 'true') {
    $url =  PDF::get_watermark($course_code);
    $form->add_textfield('pdf_export_watermark_text', get_lang('PDFExportWatermarkTextTitle'), false, array('size' => '60'));
    $form->addElement('file', 'pdf_export_watermark_path', get_lang('AddWaterMark'));
    if ($url != false) {        
        $delete_url = '<a href="?delete_watermark">'.Display::return_icon('delete.png',get_lang('DelImage')).'</a>';
        $form->addElement('html', '<div class="row"><div class="formw"><a href="'.$url.'">'.$url.' '.$delete_url.'</a></div></div>');
    }
    $form->addRule('pdf_export_watermark_path', get_lang('OnlyImagesAllowed').' ('.implode(',', $allowed_picture_types).')', 'filetype', $allowed_picture_types);    
}

$form->addElement('style_submit_button', null, get_lang('SaveSettings'), 'class="save"');
$form->addElement('html', '</div></div>');

// COURSE ACCESS

$form->addElement('html', '<div> <h3>'.Display::return_icon('course.png', Security::remove_XSS(get_lang('CourseAccess')),'',ICON_SIZE_SMALL).' '.Security::remove_XSS(get_lang('CourseAccess')).'</h3><div>');

$group = array();
$group[]= $form->createElement('radio', 'visibility', get_lang("CourseAccess"), get_lang('OpenToTheWorld'), COURSE_VISIBILITY_OPEN_WORLD);
$group[]= $form->createElement('radio', 'visibility', null, get_lang('OpenToThePlatform'), COURSE_VISIBILITY_OPEN_PLATFORM);
$group[]= $form->createElement('radio', 'visibility', null, get_lang('Private'), COURSE_VISIBILITY_REGISTERED);
$group[]= $form->createElement('radio', 'visibility', null, get_lang('CourseVisibilityClosed'), COURSE_VISIBILITY_CLOSED);
$form->addGroup($group, '', array(get_lang("CourseAccess"), get_lang("CourseAccessConfigTip")), '');

$group = array();
$group[]=$form->createElement('radio', 'subscribe', get_lang('Subscription'), get_lang('Allowed'), 1);
$group[]=$form->createElement('radio', 'subscribe', null, get_lang('Denied'), 0);
$form->addGroup($group, '', array(get_lang("Subscription")), '');

$group = array();
$group[]=$form->createElement('radio', 'unsubscribe', get_lang('Unsubscription'), get_lang('AllowedToUnsubscribe'), 1);
$group[]=$form->createElement('radio', 'unsubscribe', null, get_lang('NotAllowedToUnsubscribe'), 0);
$form->addGroup($group, '', array(get_lang("Unsubscription")), '');

$form->add_textfield('course_registration_password', get_lang('CourseRegistrationPassword'), false, array('size' => '60'));

$form->addElement('checkbox', 'activate_legal', array(null, get_lang('ShowALegalNoticeWhenEnteringTheCourse')), get_lang('ActivateLegal'));
$form->addElement('textarea', 'legal', get_lang('CourseLegalAgreement'), array('class'=>'span6', 'rows' => 8));

$form->addElement('style_submit_button', null, get_lang('SaveSettings'), 'class="save"');
$form->addElement('html', '</div></div>');

// EMAIL NOTIFICATIONS
$form->addElement('html', '<div> <h3>'.Display::return_icon('mail.png', Security::remove_XSS(get_lang('EmailNotifications')),'',ICON_SIZE_SMALL).' '.Security::remove_XSS(get_lang('EmailNotifications')).'</h3><div>');

$group = array();
$group[]=$form->createElement('radio', 'email_alert_to_teacher_on_new_user_in_course', get_lang('NewUserEmailAlert'), get_lang('NewUserEmailAlertEnable'), 1);
$group[]=$form->createElement('radio', 'email_alert_to_teacher_on_new_user_in_course', null, get_lang('NewUserEmailAlertToTeacharAndTutor'), 2);
$group[]=$form->createElement('radio', 'email_alert_to_teacher_on_new_user_in_course', null, get_lang('NewUserEmailAlertDisable'), 0);
$form->addGroup($group, '', array(get_lang("NewUserEmailAlert")), '');

$group = array();
$group[]=$form->createElement('radio', 'email_alert_students_on_new_homework', get_lang('NewHomeworkEmailAlert'), get_lang('NewHomeworkEmailAlertEnable'), 1);
$group[]=$form->createElement('radio', 'email_alert_students_on_new_homework', null, get_lang('NewHomeworkEmailAlertDisable'), 0);
$form->addGroup($group, '', array(get_lang("NewHomeworkEmailAlert")), '');

$group = array();
$group[]=$form->createElement('radio', 'email_alert_manager_on_new_doc', get_lang('WorkEmailAlert'), get_lang('WorkEmailAlertActivate'), 1);
$group[]=$form->createElement('radio', 'email_alert_manager_on_new_doc', null, get_lang('WorkEmailAlertDeactivate'), 0);
$form->addGroup($group, '', array(get_lang("WorkEmailAlert")), '');


$group = array();
$group[]=$form->createElement('radio', 'email_alert_on_new_doc_dropbox', get_lang('DropboxEmailAlert'), get_lang('DropboxEmailAlertActivate'), 1);
$group[]=$form->createElement('radio', 'email_alert_on_new_doc_dropbox', null, get_lang('DropboxEmailAlertDeactivate'), 0);
$form->addGroup($group, '', array(get_lang("DropboxEmailAlert")), '');

$group = array();
$group[]=$form->createElement('radio', 'email_alert_manager_on_new_quiz', get_lang('QuizEmailAlert'), get_lang('QuizEmailAlertActivate'), 1);
$group[]=$form->createElement('radio', 'email_alert_manager_on_new_quiz', null, get_lang('QuizEmailAlertDeactivate'), 0);
$form->addGroup($group, '', array(get_lang("QuizEmailAlert")), '');


$form->addElement('style_submit_button', null, get_lang('SaveSettings'), 'class="save"');

$form->addElement('html', '</div></div>');

// USER RIGHTS
$form->addElement('html', '<div> <h3>'.Display::return_icon('user.png', Security::remove_XSS(get_lang('UserRights')),'',ICON_SIZE_SMALL).' '.Security::remove_XSS(get_lang('UserRights')).'</h3><div>');

$group = array();
$group[]=$form->createElement('radio', 'allow_user_edit_agenda', get_lang('AllowUserEditAgenda'), get_lang('AllowUserEditAgendaActivate'), 1);
$group[]=$form->createElement('radio', 'allow_user_edit_agenda', null, get_lang('AllowUserEditAgendaDeactivate'), 0);
$form->addGroup($group, '', array(get_lang("AllowUserEditAgenda")), '');

$group = array();
$group[]=$form->createElement('radio', 'allow_user_edit_announcement', get_lang('AllowUserEditAnnouncement'), get_lang('AllowUserEditAnnouncementActivate'), 1);
$group[]=$form->createElement('radio', 'allow_user_edit_announcement', null, get_lang('AllowUserEditAnnouncementDeactivate'), 0);
$form->addGroup($group, '', array(get_lang("AllowUserEditAnnouncement")), '');

$group = array();
$group[]=$form->createElement('radio', 'allow_user_image_forum', get_lang('AllowUserImageForum'), get_lang('AllowUserImageForumActivate'), 1);
$group[]=$form->createElement('radio', 'allow_user_image_forum', null, get_lang('AllowUserImageForumDeactivate'), 0);
$form->addGroup($group, '', array(get_lang("AllowUserImageForum")), '');

$group = array();
$group[]=$form->createElement('radio', 'allow_user_view_user_list', get_lang('AllowUserViewUserList'), get_lang('AllowUserViewUserListActivate'), 1);
$group[]=$form->createElement('radio', 'allow_user_view_user_list', null, get_lang('AllowUserViewUserListDeactivate'), 0);
$form->addGroup($group, '', array(get_lang("AllowUserViewUserList")), '');

$form->addElement('style_submit_button', null, get_lang('SaveSettings'), 'class="save"');
$form->addElement('html', '</div></div>');


// CHAT SETTINGS
$form->addElement('html', '<div><h3>'.Display::return_icon('chat.png', Security::remove_XSS(get_lang('ConfigChat')),'',ICON_SIZE_SMALL).' '.Security::remove_XSS(get_lang('ConfigChat')).'</h3><div>');

$group = array();
$group[]=$form->createElement('radio', 'allow_open_chat_window', get_lang('AllowOpenchatWindow'), get_lang('AllowOpenChatWindowActivate'), 1);
$group[]=$form->createElement('radio', 'allow_open_chat_window', null, get_lang('AllowOpenChatWindowDeactivate'), 0);
$form->addGroup($group, '', array(get_lang("AllowOpenchatWindow")), '');

$form->addElement('style_submit_button', null, get_lang('SaveSettings'), 'class="save"');
$form->addElement('html', '</div></div>');


// LEARNING PATH
$form->addElement('html', '<div><h3>'.Display::return_icon('scorms.png', get_lang('ConfigLearnpath'),'',ICON_SIZE_SMALL).' '.Security::remove_XSS(get_lang('ConfigLearnpath')).'</h3><div>');

//Auto launch LP
$group = array();
$group[]=$form->createElement('radio', 'enable_lp_auto_launch', get_lang('LPAutoLaunch'), get_lang('RedirectToALearningPath'), 1);
$group[]=$form->createElement('radio', 'enable_lp_auto_launch', get_lang('LPAutoLaunch'), get_lang('RedirectToTheLearningPathList'), 2);
$group[]=$form->createElement('radio', 'enable_lp_auto_launch', null, get_lang('Deactivate'), 0);
$form->addGroup($group, '', array(get_lang("LPAutoLaunch")), '');

if (api_get_setting('allow_course_theme') == 'true') {
	// Allow theme into Learning path
	$group = array();
	$group[]=$form->createElement('radio', 'allow_learning_path_theme', get_lang('AllowLearningPathTheme'), get_lang('AllowLearningPathThemeAllow'), 1);
	$group[]=$form->createElement('radio', 'allow_learning_path_theme', null, get_lang('AllowLearningPathThemeDisallow'), 0);
    $form->addGroup($group, '', array(get_lang("AllowLearningPathTheme")), '');
    
	$group = array();
	$group[]=$form->createElement('select_theme', 'course_theme', null, array('class'=>' ', 'id'=>'course_theme_id'));    
    $form->addGroup($group, '', array(get_lang("Stylesheets")), '');
}

if (is_settings_editable()) {
	$form->addElement('style_submit_button', null, get_lang('SaveSettings'), 'class="save"');
} else {
	// Is it allowed to edit the course settings?
	if (!is_settings_editable())
		$disabled_output = "disabled";
	$form->freeze();
}


$form->addElement('html', '</div></div>');

// THEMATIC ADVANCE SETTINGS
$form->addElement('html', '<div><h3>'.Display::return_icon('course_progress.png', Security::remove_XSS(get_lang('ThematicAdvanceConfiguration')),'',ICON_SIZE_SMALL).' '.Security::remove_XSS(get_lang('ThematicAdvanceConfiguration')).'</h3><div>');

$group = array();
$group[]=$form->createElement('radio', 'display_info_advance_inside_homecourse', get_lang('InfoAboutAdvanceInsideHomeCourse'), get_lang('DisplayAboutLastDoneAdvance'), 1);
$group[]=$form->createElement('radio', 'display_info_advance_inside_homecourse', null, get_lang('DisplayAboutNextAdvanceNotDone'), 2);
$group[]=$form->createElement('radio', 'display_info_advance_inside_homecourse', null, get_lang('DisplayAboutNextAdvanceNotDoneAndLastDoneAdvance'), 3);
$group[]=$form->createElement('radio', 'display_info_advance_inside_homecourse', null, get_lang('DoNotDisplayAnyAdvance'), 0);
$form->addGroup($group, '', array(get_lang("InfoAboutAdvanceInsideHomeCourse")), '');

$form->addElement('style_submit_button', null, get_lang('SaveSettings'), 'class="save"');

$form->addElement('html', '</div></div>');


// BBB SETTINGS

if ($video_conference_enabled) {
    $form->addElement('html', '<div><h3>'.Display::return_icon('visio.png', Security::remove_XSS(get_lang('VideoConferenceSettings')),'', ICON_SIZE_SMALL).' '.Security::remove_XSS(get_lang('VideoConferenceSettings')).'</h3><div>');
    
//    $form->add_textfield('big_blue_button_welcome_message', get_lang('big_blue_button_welcome_message'), false, array('class' => 'span5'));
    
/*    $form->add_textfield('big_blue_button_meeting_name', get_lang('big_blue_button_meeting_name'), false, array('class' => 'span5'));
    
    
    $form->add_textfield('big_blue_button_attendee_password', get_lang('big_blue_button_attendee_password'), false, array('class' => 'span5'));
    $form->add_textfield('big_blue_button_moderator_password', get_lang('big_blue_button_moderator_password'), false, array('class' => 'span5'));
    
    
    $form->addElement('checkbox', 'big_blue_button_open_new_window', array(null, null, get_lang('big_blue_button_open_new_window')), null);
    
    $form->addElement('checkbox', 'big_blue_button_student_must_wait_until_moderator', array(null, null, get_lang('big_blue_button_student_must_wait_until_moderator')), null);    
    
    $form->addElement('datepicker', 'big_blue_button_join_start_date', array(get_lang('big_blue_button_join_start_date')), null);
    $form->addElement('datepicker', 'big_blue_button_join_end_date', array(get_lang('big_blue_button_join_end_date')), null);*/
    
    $form->add_textfield('big_blue_button_max_students_allowed', get_lang('big_blue_button_max_students_allowed'), false, array('class' => 'span5'));    
    $form->addElement('checkbox', 'big_blue_button_record_and_store', array(null, null, get_lang('big_blue_button_record_and_store')), null);

    $form->addElement('style_submit_button', null, get_lang('SaveSettings'), 'class="save"');
    $form->addElement('html', '</div></div>');
}


// Get all the course information
$all_course_information =  CourseManager::get_course_information($_course['sysCode']);


// Set the default values of the form
$values = array();

$values['title']                        = $_course['name'];
//$values['visual_code']                  = $_course['official_code'];
$values['category_code']                = $_course['categoryCode'];
//$values['tutor_name']                 = $_course['titular'];
$values['course_language']              = $_course['language'];
$values['department_name']              = $_course['extLink']['name'];
$values['department_url']               = $_course['extLink']['url'];
$values['visibility']                   = $_course['visibility'];
$values['subscribe']                    = $course_access_settings['subscribe'];
$values['unsubscribe']                  = $course_access_settings['unsubscribe'];
$values['course_registration_password'] = $all_course_information['registration_code'];

$values['legal']                        = $all_course_information['legal'];
$values['activate_legal']               = $all_course_information['activate_legal'];

// Get send_mail_setting (auth)from table
$values['email_alert_to_teacher_on_new_user_in_course']= api_get_course_setting('email_alert_to_teacher_on_new_user_in_course');
// Get send_mail_setting (work)from table
$values['email_alert_manager_on_new_doc']           = api_get_course_setting('email_alert_manager_on_new_doc');
// Get send_mail_setting (dropbox) from table
$values['email_alert_on_new_doc_dropbox']           = api_get_course_setting('email_alert_on_new_doc_dropbox');
// Get send_mail_setting (work)from table
$values['email_alert_manager_on_new_quiz']          = api_get_course_setting('email_alert_manager_on_new_quiz');
// Get allow_user_edit_agenda from table
$values['allow_user_edit_agenda']                   = api_get_course_setting('allow_user_edit_agenda');
// Get allow_user_edit_announcement from table
$values['allow_user_edit_announcement']             = api_get_course_setting('allow_user_edit_announcement');
// Get allow_user_image_forum from table
$values['allow_user_image_forum']                   = api_get_course_setting('allow_user_image_forum');
// Get allow_open_chat_window from table
$values['allow_open_chat_window']                   = api_get_course_setting('allow_open_chat_window');
// Get course_theme from table
$values['course_theme']                             = api_get_course_setting('course_theme');
// Get allow_learning_path_theme from table
$values['allow_learning_path_theme']                = api_get_course_setting('allow_learning_path_theme');
//Get allow show user list
$values['allow_user_view_user_list']                = api_get_course_setting('allow_user_view_user_list');
//Get allow show user list
$values['display_info_advance_inside_homecourse']   = api_get_course_setting('display_info_advance_inside_homecourse');
$values['email_alert_students_on_new_homework']     = api_get_course_setting('email_alert_students_on_new_homework');

$values['enable_lp_auto_launch']                    = api_get_course_setting('enable_lp_auto_launch');
$values['pdf_export_watermark_text']                = api_get_course_setting('pdf_export_watermark_text');

if ($video_conference_enabled) {
    
    $values['big_blue_button_welcome_message']      = api_get_course_setting('big_blue_button_welcome_message');
    $values['big_blue_button_max_students_allowed'] = api_get_course_setting('big_blue_button_max_students_allowed');  
    
    
    /*$values['big_blue_button_meeting_name']         = api_get_course_setting('big_blue_button_meeting_name');
    
    $values['big_blue_button_attendee_password']    = api_get_course_setting('big_blue_button_attendee_password');
    $values['big_blue_button_moderator_password']   = api_get_course_setting('big_blue_button_moderator_password');    
      
    $values['big_blue_button_open_new_window']                     = api_get_course_setting('big_blue_button_open_new_window');
    $values['big_blue_button_student_must_wait_until_moderator']   = api_get_course_setting('big_blue_button_student_must_wait_until_moderator');
    
    $start_date = api_get_course_setting('big_blue_button_join_start_date');
    if (empty($start_date)) {
        $start_date = date('Y-m-d 12:00:00');        
    }
    
    $values['big_blue_button_join_start_date']      = $start_date;
    
    $end_date = api_get_course_setting('big_blue_button_join_end_date');
    if (empty($end_date)) {
        $end_date = date('Y-m-d 18:00:00');        
    }
    
    $values['big_blue_button_join_end_date']        = $end_date;       
    */
     $values['big_blue_button_record_and_store']     = api_get_course_setting('big_blue_button_record_and_store');
}

$form->setDefaults($values);

// Validate form
if ($form->validate() && is_settings_editable()) {	    
    $update_values = $form->exportValues();
       
    $pdf_export_watermark_path = $_FILES['pdf_export_watermark_path'];
    
    if (!empty($pdf_export_watermark_path['name'])) {        
        $pdf_export_watermark_path_result = PDF::upload_watermark($pdf_export_watermark_path['name'], $pdf_export_watermark_path['tmp_name'], $course_code);        
        unset($update_values['pdf_export_watermark_path']);
    }
    
    //Variables that will be saved in the TABLE_MAIN_COURSE table
    $update_in_course_table = array('title', 'course_language','category_code','department_name', 'department_url','visibility',  
    								'subscribe', 'unsubscribe','tutor_name','course_registration_password', 'legal', 'activate_legal');
    
	foreach ($update_values as $index =>$value) {
		$update_values[$index] = Database::escape_string($value);
	}    
	unset($value);	
	$table_course = Database :: get_main_table(TABLE_MAIN_COURSE);
	$sql = "UPDATE $table_course SET
				title 				    = '".$update_values['title']."',				
				course_language 	    = '".$update_values['course_language']."',
				category_code 		    = '".$update_values['category_code']."',
				department_name  	    = '".$update_values['department_name']."',
				department_url  	    = '".$update_values['department_url']."',
				visibility  		    = '".$update_values['visibility']."',
				subscribe  			    = '".$update_values['subscribe']."',
				unsubscribe  		    = '".$update_values['unsubscribe']."',
				legal                   = '".$update_values['legal']."',
				activate_legal          = '".$update_values['activate_legal']."',                        
				registration_code 	    = '".$update_values['course_registration_password']."'
			WHERE code = '".$course_code."'";
	Database::query($sql);
        
    if ($video_conference_enabled) {       
        /*
        if (isset($update_values['big_blue_button_open_new_window']) && $update_values['big_blue_button_open_new_window']) {
            $update_values['big_blue_button_open_new_window'] = 1;
        } else {
            $update_values['big_blue_button_open_new_window'] = 0;
        }        
        if (isset($update_values['big_blue_button_student_must_wait_until_moderator']) && $update_values['big_blue_button_student_must_wait_until_moderator']) {
            $update_values['big_blue_button_student_must_wait_until_moderator'] = 1;
        } else {
            $update_values['big_blue_button_student_must_wait_until_moderator'] = 0;
        }
        */
        if (isset($update_values['big_blue_button_record_and_store']) && $update_values['big_blue_button_record_and_store']) {
            $update_values['big_blue_button_record_and_store'] = 1;
        } else {
            $update_values['big_blue_button_record_and_store'] = 0;
        }        
    }
    
	// Update course_settings table - this assumes those records exist, otherwise triggers an error
	$table_course_setting = Database::get_course_table(TABLE_COURSE_SETTING);   
    
    foreach ($update_values as $key =>$value) {
        //We do not update variables that were already saved in the TABLE_MAIN_COURSE table
        if (!in_array($key, $update_in_course_table)) {
            Database::update($table_course_setting, array('value' => $update_values[$key]), array('variable = ? AND c_id = ?' => array($key, api_get_course_int_id()), true));
        }    	
    }    
	$cidReset = true;
	$cidReq = $course_code;
	require '../inc/local.inc.php';
	header('Location: infocours.php?action=show_message&cidReq='.$course_code);
	exit;
}

/*	Header */

Display :: display_header($nameTools, MODULE_HELP_NAME);
if ($show_delete_watermark_text_message) {
    Display :: display_normal_message(get_lang('FileDeleted'));
}
//api_display_tool_title($nameTools);
if (isset($_GET['action']) && $_GET['action'] == 'show_message') {
	Display :: display_normal_message(get_lang('ModifDone'));
}

echo '<script>
$(function() {
	$("#course_settings").accordion({
		autoHeight: false,		
		header: "div > h3"
	});
});
</script>';

// Display the form
echo '<div id="course_settings">';
$form->display();
echo '</div>';

Display::display_footer();