<?php

	/**
	 * Elgg blog plugin
	 * 
	 * @package ElggBlog
	 * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
	 * @author Ben Werdmuller <ben@curverider.co.uk>
	 * @copyright Curverider Ltd 2008
	 * @link http://elgg.com/
	 */

	/**
	 * Blog initialisation
	 *
	 * These parameters are required for the event API, but we won't use them:
	 * 
	 * @param unknown_type $event
	 * @param unknown_type $object_type
	 * @param unknown_type $object
	 */

		function blog_init() {
			
			// Load system configuration
				global $CONFIG;
				
			// Load the language file
				register_translations($CONFIG->pluginspath . "blog/languages/");
				
			// Set up menu for logged in users
				if (isloggedin()) {
					add_menu(elgg_echo('blog'), $CONFIG->wwwroot . "pg/blog/",array(
						menu_item(elgg_echo('blog:read'),$CONFIG->wwwroot."pg/blog/" . $_SESSION['user']->username),
						menu_item(elgg_echo('blog:addpost'),$CONFIG->wwwroot."mod/blog/add.php"),
						menu_item(elgg_echo('blog:everyone'),$CONFIG->wwwroot."mod/blog/everyone.php"),
					));
			// And for logged out users
				} else {
					add_menu(elgg_echo('blog'), $CONFIG->wwwroot . "mod/blog/everyone.php",array(
						menu_item(elgg_echo('blog:everyone'),$CONFIG->wwwroot."mod/blog/everyone.php"),
					));
				}
				
			// Extend system CSS with our own styles, which are defined in the blog/css view
				extend_view('css','blog/css');
				
			// Register a page handler, so we can have nice URLs
				register_page_handler('blog','blog_page_handler');
				
			// Register a URL handler for blog posts
				register_entity_url_handler('blog_url','object','blog');
		}
		
		/**
		 * Blog page handler; allows the use of fancy URLs
		 *
		 * @param array $page From the page_handler function
		 * @return true|false Depending on success
		 */
		function blog_page_handler($page) {
			
			// The first component of a blog URL is the username
			if (isset($page[0])) {
				set_input('username',$page[0]);
			}
			
			// The second part dictates what we're doing
			if (isset($page[1])) {
				switch($page[1]) {
					case "read":		set_input('blogpost',$page[2]);
										@include(dirname(__FILE__) . "/read.php");
										break;
					case "friends":		// TODO: add friends blog page here
										break;
				}
			// If the URL is just 'blog/username', or just 'blog/', load the standard blog index
			} else {
				@include(dirname(__FILE__) . "/index.php");
				return true;
			}
			
			return false;
			
		}

		/**
		 * Populates the ->getUrl() method for blog objects
		 *
		 * @param ElggEntity $blogpost Blog post entity
		 * @return string Blog post URL
		 */
		function blog_url($blogpost) {
			
			global $CONFIG;
			return $CONFIG->url . "pg/blog/" . $blogpost->getOwnerEntity()->username . "/read/" . $blogpost->getGUID();
			
		}
		
	// Make sure the blog initialisation function is called on initialisation
		register_event_handler('init','system','blog_init');
		
	// Register actions
		global $CONFIG;
		register_action("blog/add",false,$CONFIG->pluginspath . "blog/actions/add.php");
		register_action("blog/edit",false,$CONFIG->pluginspath . "blog/actions/edit.php");
		register_action("blog/delete",false,$CONFIG->pluginspath . "blog/actions/delete.php");
		register_action("blog/comments/add",false,$CONFIG->pluginspath . "blog/actions/comments/add.php");
		register_action("blog/comments/delete",false,$CONFIG->pluginspath . "blog/actions/comments/delete.php");
		
?>