script.php

<?php
/**
 * @package                                     NXD BluePrint Module
 *
 * @author                                      [CREATOR-COMPANY] | [CREATOR-FULLNAME] <[CREATOR-EMAIL]>
 * @copyright                                   Copyright(R) [CREATED-YEAR] by [CREATOR-COMPANY] | [CREATOR-FULLNAME]
 * @license                                     GNU General Public License version 2 or later; see LICENSE.txt
 * @link                                        [CREATOR-URL]
 * @since                                       [EXTENSION-VERSION]
 *
 */

use Joomla\CMS\Factory;
use Joomla\CMS\Application\AdministratorApplication;
use Joomla\CMS\Installer\InstallerAdapter;
use Joomla\CMS\Installer\InstallerScriptInterface;
use Joomla\CMS\Language\Text;
use Joomla\Database\DatabaseInterface;
use Joomla\DI\Container;
use Joomla\DI\ServiceProviderInterface;
use Joomla\Filesystem\Exception\FilesystemException;
use Joomla\Filesystem\File;

// phpcs:disable PSR1.Files.SideEffects
\defined('_JEXEC') or die;

// phpcs:enable PSR1.Files.SideEffects

return new class () implements ServiceProviderInterface {
	public function register(Container $container)
	{
		$container->set(
			InstallerScriptInterface::class,
			new class (
				$container->get(AdministratorApplication::class),
				$container->get(DatabaseInterface::class)
			) implements InstallerScriptInterface {
				private AdministratorApplication $app;
				private DatabaseInterface $db;

				public function __construct(AdministratorApplication $app, DatabaseInterface $db)
				{
					$this->app = $app;
					$this->db  = $db;
				}

				public function install(InstallerAdapter $parent): bool
				{
					// Install the extension
					Factory::getApplication()->enqueueMessage('The [CREATOR-COMPANY] BluePrint Module has been installed successfully.');

					return true;
				}

				public function uninstall(InstallerAdapter $parent): bool
				{
					// Uninstall the extension
					Factory::getApplication()->enqueueMessage('The [CREATOR-COMPANY] BluePrint Module has been uninstalled successfully.');

					return true;
				}

				public function update(InstallerAdapter $parent): bool
				{
					// Update the extension
					Factory::getApplication()->enqueueMessage('The [CREATOR-COMPANY] BluePrint Module has been updated successfully.');

					return true;
				}

				public function preflight(string $type, InstallerAdapter $parent): bool
				{
					return true;
				}

				public function postflight(string $type, InstallerAdapter $parent): bool
				{
					$this->deleteUnexistingFiles();

					return true;
				}

				private function deleteUnexistingFiles(): void
				{
					$files = [];

					if (empty($files)) {
						return;
					}

					foreach ($files as $file) {
						try {
							File::delete(JPATH_ROOT . $file);
						} catch (FilesystemException $e) {
							echo Text::sprintf('FILES_JOOMLA_ERROR_FILE_FOLDER', $file) . '<br>';
						}
					}
				}
			}
		);
	}
};