Sindbad~EG File Manager

<?php
/**
 * HFE Rollback.
 *
 * @package HFE
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

/**
 * HFE Rollback.
 *
 * HFE Rollback. handler class is responsible for rolling back HFE to
 * previous version.
 *
 * @since 2.2.1
 */
if ( ! class_exists( 'HFE_Rollback' ) ) {

	class HFE_Rollback {

		/**
		 * Package URL.
		 *
		 * Holds the package URL.
		 *
		 * @since 2.2.1
		 * @access protected
		 *
		 * @var string Package URL.
		 */
		protected $package_url;

		/**
		 * Version.
		 *
		 * Holds the version.
		 *
		 * @since 2.2.1
		 * @access protected
		 *
		 * @var string Package URL.
		 */
		protected $version;

		/**
		 * Plugin name.
		 *
		 * Holds the plugin name.
		 *
		 * @since 2.2.1
		 * @access protected
		 *
		 * @var string Plugin name.
		 */
		protected $plugin_name;

		/**
		 * Plugin slug.
		 *
		 * Holds the plugin slug.
		 *
		 * @since 2.2.1
		 * @access protected
		 *
		 * @var string Plugin slug.
		 */
		protected $plugin_slug;

		/**
		 * HFE Rollback constructor.
		 *
		 * Initializing HFE Rollback.
		 *
		 * @since 2.2.1
		 * @access public
		 *
		 * @param array $args Optional. HFE Rollback arguments. Default is an empty array.
		 */
		public function __construct( $args = [] ) {
			foreach ( $args as $key => $value ) {
				$this->{$key} = $value;
			}
		}

		/**
		 * Print inline style.
		 *
		 * Add an inline CSS to the HFE Rollback page.
		 *
		 * @since 2.2.1
		 * @access private
		 */
		private function print_inline_style() {
			?>
			<style>
				.wrap {
					overflow: hidden;
					max-width: 850px;
					margin: auto;
					font-family: Courier, monospace;
				}

				h1 {
					background: rgb(74, 0, 224);
					text-align: center;
					color: #fff !important;
					padding: 70px !important;
					text-transform: uppercase;
					letter-spacing: 1px;
				}

				h1 img {
					max-width: 300px;
					display: block;
					margin: auto auto 50px;
				}
			</style>
			<?php
		}

		/**
		 * Apply package.
		 *
		 * Change the plugin data when WordPress checks for updates. This method
		 * modifies package data to update the plugin from a specific URL containing
		 * the version package.
		 *
		 * @since 2.2.1
		 * @access protected
		 */
		protected function apply_package() {
			$update_plugins = get_site_transient( 'update_plugins' );
			if ( ! is_object( $update_plugins ) ) {
				$update_plugins = new \stdClass();
			}

			$plugin_info              = new \stdClass();
			$plugin_info->new_version = $this->version;
			$plugin_info->slug        = $this->plugin_slug;
			$plugin_info->package     = $this->package_url;
			$plugin_info->url         = 'https://wordpress.org/plugins/header-footer-elementor/';

			$update_plugins->response[ $this->plugin_name ] = $plugin_info;

			set_site_transient( 'update_plugins', $update_plugins );
		}

		/**
		 * Upgrade.
		 *
		 * Run WordPress upgrade to HFE Rollback to previous version.
		 *
		 * @since 2.2.1
		 * @access protected
		 */
		protected function upgrade() {

			require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';

			$upgrader_args = [
				'url'    => 'update.php?action=upgrade-plugin&plugin=' . rawurlencode( $this->plugin_name ),
				'plugin' => $this->plugin_name,
				'nonce'  => 'upgrade-plugin_' . $this->plugin_name,
				'title'  => __( 'Ultimate Addons for Elementor Lite <p>Rollback to Previous Version</p>', 'header-footer-elementor' ),
			];

			$this->print_inline_style();

			$upgrader = new \Plugin_Upgrader( new \Plugin_Upgrader_Skin( $upgrader_args ) );
			$upgrader->upgrade( $this->plugin_name );
		}

		/**
		 * Run.
		 *
		 * Rollback HFE to previous versions.
		 *
		 * @since 2.2.1
		 * @access public
		 */
		public function run() {
			$this->apply_package();
			$this->upgrade();
		}
	}
}