<?php
/**
 * Elgg OpenID client
 *
 * This is a rewrite of the OpenID client written by Kevin Jardine for
 * Curverider Ltd for Elgg 1.0-1.7.
 */

elgg_register_event_handler('init', 'system', 'openid_client_init');

/**
 * OpenID client initialization
 */
function openid_client_init() {
	elgg_extend_view('core/account/login_box', 'openid_client/login');
	
	$base = elgg_get_plugins_path() . 'openid_client/actions/openid_client';
	elgg_register_action('openid_client/login', "$base/login.php", 'public');
	elgg_register_action('openid_client/register', "$base/register.php", 'public');

	$base = elgg_get_plugins_path() . 'openid_client/lib';
	elgg_register_library('openid_client', "$base/helpers.php");

	elgg_register_event_handler('create', 'user', 'openid_client_set_subtype', 1);

	elgg_register_page_handler('openid_client', 'openid_client_page_handler');
}

/**
 * Set the correct subtype for OpenID users
 *
 * @param string   $event  Event name
 * @param string   $type   Object type
 * @param ElggUser $user   New user
 */
function openid_client_set_subtype($event, $type, $user) {
	$db_prefix = elgg_get_config('dbprefix');
	$guid = (int)$user->getGUID();
	$subtype_id = (int)add_subtype('user', 'openid');

	$query = "UPDATE {$db_prefix}entities SET subtype = $subtype_id WHERE guid = $guid";
	update_data($query);
}

/**
 * OpenID client page handler
 *
 * @param type $page Array of URL segments
 * @return bool
 */
function openid_client_page_handler($page) {

	// this is test code for right now
	elgg_load_library('openid_client');
	openid_client_registration_page_handler(array(
		'username' => 'john',
		'email' => 'john@example.org',
		'name' => 'John Doe',
		'openid_identifier' => 'abcdefghijklmnopqrstuvwxyz',
	));

	return true;
}