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

/**
*	@package chamilo.admin
*/
$cidReset = true;
require_once '../inc/global.inc.php';
$this_section = SECTION_PLATFORM_ADMIN;
api_protect_admin_script();

$libpath = api_get_path(LIBRARY_PATH);

$group_id = isset($_GET['id']) ? intval($_GET['id']) : intval($_POST['id']);
$tool_name = get_lang('GroupEdit');

$interbreadcrumb[] = array('url' => 'index.php','name' => get_lang('PlatformAdmin'));
$interbreadcrumb[] = array('url' => 'group_list.php','name' => get_lang('GroupList'));

$table_group = Database::get_main_table(TABLE_MAIN_GROUP);

$htmlHeadXtra[] = '<script type="text/javascript">
textarea = "";
num_characters_permited = 255;
function text_longitud(){
   num_characters = document.forms[0].description.value.length;
  if (num_characters > num_characters_permited){
      document.forms[0].description.value = textarea;
   }else{
      textarea = document.forms[0].description.value;
   }
}
</script>';

$sql = "SELECT * FROM $table_group WHERE id = '".$group_id."'";
$res = Database::query($sql);
if (Database::num_rows($res) != 1) {
	header('Location: group_list.php');
	exit;
}

$group_data = Database::fetch_array($res, 'ASSOC');

// Create the form
$form = new FormValidator('group_edit', 'post', '', '', array('style' => 'width: 60%; float: '.($text_dir == 'rtl' ? 'right;' : 'left;')));
$form->addElement('header', '', $tool_name);
$form->addElement('hidden', 'id', $group_id);

// name
$form->addElement('text', 'name', get_lang('Name'), array('size'=>60, 'maxlength'=>120));
$form->applyFilter('name', 'html_filter');
$form->applyFilter('name', 'trim');
$form->addRule('name', get_lang('ThisFieldIsRequired'), 'required');

// Description
$form->addElement(
	'textarea',
	'description',
	get_lang('Description'),
	array(
		'rows' => 3,
		'cols' => 58,
		'onKeyDown' => "text_longitud()",
		'onKeyUp' => "text_longitud()",
	)
);
$form->applyFilter('description', 'html_filter');
$form->applyFilter('description', 'trim');

// url
$form->addElement('text', 'url', get_lang('URL'), array('size' => 35));
$form->applyFilter('url', 'html_filter');
$form->applyFilter('url', 'trim');
// 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', $allowed_picture_types);
if (strlen($group_data['picture_uri']) > 0) {
	$form->addElement('checkbox', 'delete_picture', '', get_lang('DelImage'));
}

// Group parent
$groups = array();
$groups = GroupPortalManager::get_groups_list($group_id);
$groups[0] = get_lang('NoParentship');
$group_data['parent_group'] = GroupPortalManager::get_parent_group($group_id);
$form->addElement('select', 'parent_group', get_lang('GroupParentship'), $groups, array());


// Status
$status = array();
$status[GROUP_PERMISSION_OPEN] = get_lang('Open');
$status[GROUP_PERMISSION_CLOSED] = get_lang('Closed');
$form->addElement('select', 'visibility', get_lang('GroupPermissions'), $status, array());

// Submit button
$form->addButtonUpdate(get_lang('ModifyInformation'));

// Set default values
$form->setDefaults($group_data);

// Validate form
if ( $form->validate()) {
	$group = $form->exportValues();

	$picture_element = $form->getElement('picture');
	$picture = $picture_element->getValue();

	$picture_uri = $group_data['picture_uri'];
	if ($group['delete_picture']) {
		$picture_uri = GroupPortalManager::delete_group_picture($group_id);
		}
	elseif (!empty($picture['name'])) {
        $picture_uri = GroupPortalManager::update_group_picture(
            $group_id,
            $_FILES['picture']['name'],
            $_FILES['picture']['tmp_name']
        );
	}

	$name = $group['name'];
	$description = $group['description'];
	$url = $group['url'];
	$status = intval($group['visibility']);
	$parent_group_id = intval($group['parent_group']);

    GroupPortalManager::update(
        $group_id,
        $name,
        $description,
        $url,
        $status,
        $picture_uri
    );
    GroupPortalManager::set_parent_group($group_id, $parent_group_id);

	$tok = Security::get_token();
	header('Location: group_list.php?action=show_message&message='.urlencode(get_lang('GroupUpdated')).'&sec_token='.$tok);
	exit();
}

Display::display_header($tool_name);

// Group picture
$image_path = GroupPortalManager::get_group_picture_path_by_id($group_id, 'web');
$image_dir = $image_path['dir'];
$image = $image_path['file'];
$image_file = ($image != '' ? $image_dir.$image : api_get_path(WEB_CODE_PATH).'img/unknown_group.jpg');
$image_size = api_getimagesize($image_file);

$img_attributes = 'src="'.$image_file.'?rand='.time().'" '
	.'style="float:'.($text_dir == 'rtl' ? 'left' : 'right').'; padding:5px;" ';

if ($image_size['width'] > 300) {
    // limit display width to 300px
	$img_attributes .= 'width="300" ';
}

// get the path,width and height from original picture
$big_image = $image_dir.'big_'.$image;
$big_image_size = api_getimagesize($big_image);
$big_image_width = $big_image_size['width'];
$big_image_height = $big_image_size['height'];
$url_big_image = $big_image.'?rnd='.time();

if ($image == '') {
	echo '<img '.$img_attributes.' />';
} else {
	echo '<input type="image" '.$img_attributes.' onclick="javascript: return show_image(\''.$url_big_image.'\',\''.$big_image_width.'\',\''.$big_image_height.'\');"/>';
}

// Display form
$form->display();

// Footer
Display::display_footer();
