<?php

/*
 * Created on July 30, 2007
 *
 * API for MediaWiki 1.8+
 *
 * Copyright (C) 2007 Yuri Astrakhan <Firstname><Lastname>@gmail.com
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 * http://www.gnu.org/copyleft/gpl.html
 */

if (!defined('MEDIAWIKI')) {
	// Eclipse helper - will be ignored in production
	require_once ('ApiQueryBase.php');
}

/**
 * Query module to get information about the currently logged-in user
 * 
 * @addtogroup API
 */
class ApiQueryUserInfo extends ApiQueryBase {

	public function __construct($query, $moduleName) {
		parent :: __construct($query, $moduleName, 'ui');
	}

	public function execute() {

		global $wgUser;

		$params = $this->extractRequestParams();
		$result = $this->getResult();

		$vals = array();
		$vals['name'] = $wgUser->getName();

		if( $wgUser->isAnon() ) $vals['anon'] = '';

		if (!is_null($params['prop'])) {
			$prop = array_flip($params['prop']);
			if (isset($prop['blockinfo'])) {
				if ($wgUser->isBlocked()) {
					$vals['blockedby'] = User::whoIs($wgUser->blockedBy());
					$vals['blockreason'] = $wgUser->blockedFor();
				}
			}		
			if (isset($prop['hasmsg']) && $wgUser->getNewtalk()) {
				$vals['messages'] = '';
			}
			if (isset($prop['groups'])) {
				$vals['groups'] = $wgUser->getGroups();
				$result->setIndexedTagName($vals['groups'], 'g');	// even if empty
			}
			if (isset($prop['rights'])) {
				$vals['rights'] = $wgUser->getRights();
				$result->setIndexedTagName($vals['rights'], 'r');	// even if empty
			}
		}

		if (!empty($params['option'])) {
			foreach( $params['option'] as $option ) {
				if (empty($option))
					$this->dieUsage('Empty value is not allowed for the option parameter', 'option');
				$vals['options'][$option] = $wgUser->getOption($option);
			}
		}
		
		$result->addValue(null, $this->getModuleName(), $vals);
	}

	protected function getAllowedParams() {
		return array (
			'prop' => array (
				ApiBase :: PARAM_DFLT => NULL,
				ApiBase :: PARAM_ISMULTI => true,
				ApiBase :: PARAM_TYPE => array (
					'blockinfo',
					'hasmsg',
					'groups',
					'rights',
				)),
			'option' => array (
				ApiBase :: PARAM_DFLT => NULL,
				ApiBase :: PARAM_ISMULTI => true,
				),
		);
	}

	protected function getParamDescription() {
		return array (
			'prop' => array(
				'What pieces of information to include',
				'  blockinfo - tags if the user is blocked, by whom, and for what reason',
				'  hasmsg    - adds a tag "message" if user has pending messages',
				'  groups    - lists all the groups the current user belongs to',
				'  rights    - lists of all rights the current user has',
			),
			'option' => 'A list of user preference options to get',
		);
	}

	protected function getDescription() {
		return 'Get information about the current user';
	}

	protected function getExamples() {
		return array (
			'api.php?action=query&meta=userinfo',
			'api.php?action=query&meta=userinfo&uiprop=blockinfo|groups|rights|hasmsg',
			'api.php?action=query&meta=userinfo&uioption=rememberpassword',
		);
	}

	public function getVersion() {
		return __CLASS__ . ': $Id: ApiQueryUserInfo.php 24529 2007-08-01 20:11:29Z yurik $';
	}
}