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

/**
 *    BLOG HOMEPAGE
 *	This file takes care of all blog navigation and displaying.
 *	@package chamilo.blogs
*/

require_once '../inc/global.inc.php';
$current_course_tool  = TOOL_BLOGS;

$this_section = SECTION_COURSES;

$blog_table_attachment 	= Database::get_course_table(TABLE_BLOGS_ATTACHMENT);

/* 		ACCESS RIGHTS	 */
// notice for unauthorized people.
api_protect_course_script(true);

//	 ONLY USERS REGISTERED IN THE COURSE
if ((!$is_allowed_in_course || !$is_courseMember) && !api_is_allowed_to_edit()) {
	api_not_allowed(true);//print headers/footers
}

if (api_is_allowed_to_edit()) {
	$nameTools = get_lang("blog_management");

	// showing the header if we are not in the learning path, if we are in
	// the learning path, we do not include the banner so we have to explicitly
	// include the stylesheet, which is normally done in the header
	if ($_GET['origin'] != 'learnpath') {
		$interbreadcrumb[]= array ('url' => 'blog_admin.php?','name' => $nameTools);
		$my_url='';
		if (isset($_GET['action']) && $_GET['action']=='add') {
			$current_section=get_lang('AddBlog');
			$my_url='action=add';
		} elseif (isset($_GET['action']) && $_GET['action']=='edit') {
			$current_section=get_lang('EditBlog');
			$my_url='action=edit&amp;blog_id='.Security::remove_XSS($_GET['blog_id']);
		}
		Display::display_header('');
	}
	echo '<div class="actions">';
	echo "<a href='".api_get_self()."?".api_get_cidreq()."&action=add'>",
		Display::return_icon('new_blog.png',get_lang('AddBlog'),'',ICON_SIZE_MEDIUM)."</a>";
	echo '</div>';

	if (!empty($_POST['new_blog_submit']) AND !empty($_POST['blog_name'])) {
		if (isset($_POST['blog_name']))  {
			Blog::create_blog($_POST['blog_name'], $_POST['blog_subtitle']);
			Display::display_confirmation_message(get_lang('BlogStored'));
		}
	}
	if (!empty($_POST['edit_blog_submit']) AND !empty($_POST['blog_name'])) {
		if (strlen(trim($_POST['blog_name']))>0) {
			Blog::edit_blog($_POST['blog_id'], $_POST['blog_name'], $_POST['blog_subtitle']);
			Display::display_confirmation_message(get_lang('BlogEdited'));
		}
	}
	if (isset($_GET['action']) && $_GET['action'] == 'visibility') {
		Blog::change_blog_visibility(intval($_GET['blog_id']));
		Display::display_confirmation_message(get_lang('VisibilityChanged'));
	}
	if (isset($_GET['action']) && $_GET['action'] == 'delete') {
		Blog::delete_blog(intval($_GET['blog_id']));
		Display::display_confirmation_message(get_lang('BlogDeleted'));
	}

	/*
		DISPLAY
	*/
	//api_display_tool_title($nameTools);
	//api_introductionsection(TOOL_BLOG);
	if (isset($_GET['action']) && $_GET['action'] == 'add') {
		// we show the form if
		// 1. no post data
		// 2. there is post data and one of the required form elements is empty
		if (!$_POST OR (!empty($_POST) AND (empty($_POST['new_blog_submit']) OR empty($_POST['blog_name'])))) {
			// if there is post data there is certainly an error in the form
			/*if ($_POST){
				Display::display_error_message(get_lang('FormHasErrorsPleaseComplete'));
			}*/
			/*if (strlen($_POST['blog_name'])==0) {
				if (count($_POST)>0) {
					Display::display_error_message(get_lang('FormHasErrorsPleaseComplete'));
				}
			}*/
			Blog::display_new_blog_form();
		}
	}

	if (isset($_GET['action']) && $_GET['action'] == 'edit') {
		// we show the form if
		// 1. no post data
		// 2. there is post data and one of the three form elements is empty
		if (!$_POST OR (!empty($_POST) AND (empty($_POST['edit_blog_submit']) OR empty($_POST['blog_name']) ))) {
			// if there is post data there is certainly an error in the form
			if ($_POST) {
				Display::display_error_message(get_lang('FormHasErrorsPleaseComplete'));
			}
            Blog::display_edit_blog_form(intval($_GET['blog_id']));
		}
	}
	Blog::display_blog_list();
} else {
	api_not_allowed(true);
}

// Display the footer
Display::display_footer();
