<?php

/**
 * @copyright     Copyright (c) 2009-2017 Ryan Demmer. All rights reserved
 * @license       GNU/GPL 2 or later - http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * JCE is free software. This version may have been modified pursuant
 * to the GNU General Public License, and as distributed it includes or
 * is derivative of works licensed under the GNU General Public License or
 * other free or open source software licenses
 */
defined('_JEXEC') or die('RESTRICTED');

/**
 * Plugins Component Controller.
 *
 * @since 1.5
 */
class WFControllerUpdates extends WFController
{
    /**
     * Custom Constructor.
     */
    public function __construct($default = array())
    {
        parent::__construct();
    }

    public function update()
    {
        $step = JRequest::getWord('step');
        $model = $this->getModel('updates');

        $result = array();

        switch ($step) {
            case 'check':
                $result = $model->check();
                break;
            case 'download':
                $result = $model->download();
                break;
            case 'install':
                $result = $model->install();
                break;
        }

        ob_start();

        // set output headers
        header('Content-Type: text/json;charset=UTF-8');
        header('Content-Encoding: UTF-8');
        header('Expires: Mon, 4 April 1984 05:00:00 GMT');
        header('Last-Modified: '.gmdate('D, d M Y H:i:s').' GMT');
        header('Cache-Control: no-store, no-cache, must-revalidate');
        header('Cache-Control: post-check=0, pre-check=0', false);
        header('Pragma: no-cache');

        if (!is_string($result)) {
            $result = json_encode($result);
        }

        echo $result;

        exit(ob_get_clean());
    }
}