<?php
/**
 * MS Framework
 *
 * @package    	MS Framework Library
 * @version 	1.2.1.573
 *
 * @author 		Michael Snoeren
 * @link 		https://snoerendevelopment.nl/
 * @license     GNU/GPLv3 http://www.gnu.org/licenses/gpl-3.0.html
 */

// Deny direct access
defined('_JEXEC') or die;

abstract class MSFrameworkUpdater
{
	/**
	 * List of versions
	 * @var 	Array
	 * @access 	Protected
	 */
	protected static $versions  = [
		'1.1.3',
		'1.1.8'
	];

	/**
	 * Run the update script for this version
	 * @access 	Public
	 * @return 	Boolean
	 */
	public static function execute()
	{
		$currentVersion 		= MSFramework::VERSION;
		$error 					= false;

		JLog::add('Started the update script', JLog::INFO, 'plg_msframework');

		foreach (self::$versions as $version) {
			// If the current version is the same or newer
			if (version_compare($currentVersion, $version) >= 0) {
				$versionNr 		= preg_replace('/[^0-9]/', '', $version);
				$function 		= 'v' . $versionNr;

				// Try to execute the function
				if (!method_exists('MSFrameworkUpdater', $function)) {
					JLog::add(
						'Skipping version ' . $version . ' due to the function that does not exist.',
						JLog::WARNING,
						'plg_msframework'
					);
					continue 1;
				}

				JLog::add('Executing for version ' . $version, JLog::INFO, 'plg_msframework');

				// Execute the update function
				$status 		= self::$function();

				if (!$status) {
					JLog::add('Executing failed for version ' . $version, JLog::WARNING, 'plg_msframework');
				}

				// Make sure one true stays true which indicates an error during one of the functions
				if (!$error) {
					$error 		= !$status;
				}
			}
		}

		JLog::add('Update script done', JLog::INFO, 'plg_msframework');

		return !$error;
	}

	/**
	 * Update function for version 1.1.3
	 * @access 	Protected
	 * @return 	Boolean
	 */
	protected static function v113()
	{
		// Remove old files
		$files 					= array(
			'plugins/system/msframework/helper/http.php',
			'plugins/system/msframework/helper/update.php',
			'plugins/system/msframework/helper/message.php',
			'plugins/system/msframework/helper/updatesite.php',
			'plugins/system/msframework/helper/layout.php',
		);
		$error 					= false;

		foreach ($files as $file) {
			$file 				= rtrim(str_replace('\\', '/', JPATH_ROOT), '/') . '/' . $file;
			if (JFile::exists($file)) {
				if (!JFile::delete($file)) {
					$error 		= true;
				}
			}
		}

		return !$error;
	}

	/**
	 * Update function for version 1.1.8
	 * @access 	Protected
	 * @return 	Boolean
	 */
	protected static function v118()
	{
		// Remove the update site file
		return JFile::delete(JPATH_ROOT . '/libraries/msframework/helpers/updatesite.php');
	}
}