<?php
namespace TYPO3\CMS\Install\Service;

/**
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
/**
 * Service for determining the current context (as a backend module or in standalone mode)
 */
class ContextService {

	/**
	 * @var bool
	 */
	private $backendContext = FALSE;

	/**
	 * Constructor, prepare the context information
	 */
	public function __construct() {
		$formValues = \TYPO3\CMS\Core\Utility\GeneralUtility::_GP('install');
		if (isset($formValues['context'])) {
			$this->backendContext = ($formValues['context'] === 'backend');
		}
	}

	/**
	 * Is the install tool running in the backend?
	 *
	 * @return boolean
	 */
	public function isBackendContext() {
		return $this->backendContext;
	}

	/**
	 * Is the install tool running as a standalone application?
	 *
	 * @return boolean
	 */
	public function isStandaloneContext() {
		return !$this->backendContext;
	}

	/**
	 * Is the install tool running as a standalone application?
	 *
	 * @return boolean
	 */
	public function getContextString() {
		return ( $this->isBackendContext() ? 'backend' : 'standalone' );
	}
}
