<?php
/*
* 2007-2017 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/osl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
*  @author PrestaShop SA <contact@prestashop.com>
*  @copyright  2007-2017 PrestaShop SA
*  @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

/**
 * Step 1 : display language form
 */
class InstallControllerHttpWelcome extends InstallControllerHttp
{
    public function processNextStep()
    {
    }

    public function validate()
    {
        return true;
    }
    
    /**
     * Change language
     */
    public function process()
    {
        if (Tools::getValue('language')) {
            $this->session->lang = Tools::getValue('language');
            $this->redirect('welcome');
        }
    }

    /**
     * Display welcome step
     */
    public function display()
    {
        $this->can_upgrade = false;
        if (file_exists(_PS_ROOT_DIR_.'/config/settings.inc.php')) {
            @include_once(_PS_ROOT_DIR_.'/config/settings.inc.php');
            if (version_compare(_PS_VERSION_, _PS_INSTALL_VERSION_, '<')) {
                $this->can_upgrade = true;
                $this->ps_version = _PS_VERSION_;
            }
        }

        $this->displayTemplate('welcome');
    }
}
