<?php

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

if ( ! class_exists( 'BridgeQodeWelcomePage' ) ) {
	class BridgeQodeWelcomePage {
		/**
		 * singleton class
		 */
		private static $instance;

		/**
		 * get the instance of BridgeQodeWelcomePage
		 *
		 * @return self
		 */
        public static function get_instance() {
            if ( ! isset( self::$instance ) && ! ( self::$instance instanceof self ) ) {
                self::$instance = new self();
            }

            return self::$instance;
        }

		/**
		 * cloning disabled
		 */
		private function __clone() {
		}

		/**
		 * constructor
		 */
		private function __construct() {
			// theme activation hook
			add_action( 'after_switch_theme', array( $this, 'init_activation_hook' ) );

			// welcome page redirect on theme activation
			add_action( 'admin_init', array( $this, 'welcome_page_redirect' ) );

			// add welcome page into theme options
			add_action( 'admin_menu', array( $this, 'create_welcome_page' ), 12 );

			// enqueue theme welcome page scripts
			add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_styles' ) );
		}

		/**
		 * init hooks on theme activation
		 */
		function init_activation_hook() {
			if ( ! is_network_admin() ) {
				set_transient( '_bridge_qode_welcome_page_redirect', 1, 30 );
			}
		}

		/**
		 * redirect to welcome page on theme activation
		 */
		function welcome_page_redirect() {
			// fix deprecated notice caused by null $title
			global $title;
			if ( empty( $title ) ) {
				$title = '';
			}
			
			// if no activation redirect, bail
			if ( ! get_transient( '_bridge_qode_welcome_page_redirect' ) ) {
				return;
			}

			// delete the redirect transient
			delete_transient( '_bridge_qode_welcome_page_redirect' );

			// if activating from network, or bulk, bail
			if ( is_network_admin() || isset( $_GET['activate-multi'] ) ) {
				return;
			}

			// redirect to welcome page
			wp_safe_redirect( add_query_arg( array( 'page' => 'bridge_qode_welcome_page' ), esc_url( admin_url( 'themes.php' ) ) ) );
			exit;
		}

		/**
		 * add welcome page
		 */
		function create_welcome_page() {
			add_theme_page(
				esc_html__( 'About', 'bridge' ),
				esc_html__( 'About', 'bridge' ),
				current_user_can( 'edit_theme_options' ),
				'bridge_qode_welcome_page',
				array( $this, 'welcome_page_content' )
			);

			remove_submenu_page( 'themes.php', 'bridge_qode_welcome_page' );
		}

		/**
		 * print welcome page content
		 */
		function welcome_page_content() {
			$params = array();

			$theme                       = wp_get_theme();
			$params['theme']             = $theme;
			$params['theme_name']        = esc_html( $theme->get( 'Name' ) );
			$params['theme_description'] = esc_html( $theme->get( 'Description' ) );
			$params['theme_version']     = $theme->get( 'Version' );
			$params['theme_screenshot']  = file_exists( QODE_ROOT . '/screenshot.png' ) ? QODE_ROOT . '/screenshot.png' : QODE_ROOT . '/screenshot.png';

			bridge_qode_get_module_template_part(  'templates/welcome','welcome', '', $params );
		}

		/**
		 * enqueue theme welcome page scripts
		 */
		function enqueue_styles( $hook ) {
			if ( $hook === 'appearance_page_bridge_qode_welcome_page' ) {
				wp_enqueue_style( 'bridge-qode-welcome-page-style', QODE_FRAMEWORK_MODULES_ROOT . '/welcome/assets/admin/css/welcome.min.css' );
			}
		}
	}
}

BridgeQodeWelcomePage::get_instance();

• [D] assets
• [D] templates
• [F] load.php
  Delete
• [F] welcome.php
  Delete