<?php
namespace Elementor;

use Elementor\Core\Modules_Manager;
use Elementor\Debug\Debug;
use Elementor\Core\Settings\Manager as SettingsManager;
use Elementor\Core\Settings\Page\Manager as PageSettingsManager;
use Elementor\Modules\History\Revisions_Manager;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Elementor plugin class.
 *
 * The main plugin handler class is responsible for initializing Elementor. The
 * class registers and all the components required to run the plugin.
 *
 * @since 1.0.0
 */
class Plugin {

	/**
	 * Instance.
	 *
	 * Holds the plugin instance.
	 *
	 * @since 1.0.0
	 * @access public
	 * @static
	 *
	 * @var Plugin
	 */
	public static $instance = null;

	/**
	 * Database.
	 *
	 * Holds the plugin database.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var DB
	 */
	public $db;

	/**
	 * Controls manager.
	 *
	 * Holds the plugin controls manager.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var Controls_Manager
	 */
	public $controls_manager;

	/**
	 * Debug.
	 *
	 * Holds the plugin debug.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var Debug
	 */
	public $debug;

	/**
	 * Schemes manager.
	 *
	 * Holds the plugin schemes manager.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var Schemes_Manager
	 */
	public $schemes_manager;

	/**
	 * Elements manager.
	 *
	 * Holds the plugin elements manager.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var Elements_Manager
	 */
	public $elements_manager;

	/**
	 * Widgets manager.
	 *
	 * Holds the plugin widgets manager.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var Widgets_Manager
	 */
	public $widgets_manager;

	/**
	 * Revisions manager.
	 *
	 * Holds the plugin revisions manager.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var Revisions_Manager
	 */
	public $revisions_manager;

	/**
	 * Maintenance mode.
	 *
	 * Holds the plugin maintenance mode.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var Maintenance_Mode
	 */
	public $maintenance_mode;

	/**
	 * Document settings manager.
	 *
	 * Holds the document settings manager.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var PageSettingsManager
	 */
	public $page_settings_manager;

	/**
	 * Settings.
	 *
	 * Holds the plugin settings.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var Settings
	 */
	public $settings;

	/**
	 * Admin.
	 *
	 * Holds the plugin admin.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var Admin
	 */
	public $admin;

	/**
	 * Tools.
	 *
	 * Holds the plugin tools.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var Tools
	 */
	public $tools;

	/**
	 * Preview.
	 *
	 * Holds the plugin preview.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var Preview
	 */
	public $preview;

	/**
	 * Editor.
	 *
	 * Holds the plugin editor.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var Editor
	 */
	public $editor;

	/**
	 * Frontend.
	 *
	 * Holds the plugin frontend.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var Frontend
	 */
	public $frontend;

	/**
	 * Heartbeat.
	 *
	 * Holds the plugin heartbeat.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var Heartbeat
	 */
	public $heartbeat;

	/**
	 * System info.
	 *
	 * Holds the system info data.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var System_Info\Main
	 */
	public $system_info;

	/**
	 * Template library manager.
	 *
	 * Holds the template library manager.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var TemplateLibrary\Manager
	 */
	public $templates_manager;

	/**
	 * Skins manager.
	 *
	 * Holds the skins manager.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var Skins_Manager
	 */
	public $skins_manager;

	/**
	 * Posts CSS manager.
	 *
	 * Holds the posts CSS manager.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var Posts_CSS_Manager
	 */
	public $posts_css_manager;

	/**
	 * WordPress widgets manager.
	 *
	 * Holds the WordPress widgets manager.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var WordPress_Widgets_Manager
	 */
	public $wordpress_widgets_manager;

	/**
	 * Modules manager.
	 *
	 * Holds the modules manager.
	 *
	 * @since 1.0.0
	 * @access private
	 *
	 * @var Modules_Manager
	 */
	private $modules_manager;

	/**
	 * Beta testers.
	 *
	 * Holds the plugin beta testers.
	 *
	 * @since 1.0.0
	 * @access public
	 *
	 * @var Beta_Testers
	 */
	public $beta_testers;

	/**
	 * Get version.
	 *
	 * Retrieve the current version of Elementor.
	 *
	 * @since 1.0.0
	 * @access public
	 * @deprecated
	 *
	 * @return string Elementor version.
	 */
	public function get_version() {
		return ELEMENTOR_VERSION;
	}

	/**
	 * Clone.
	 *
	 * Disable class cloning and throw an error on object clone.
	 *
	 * The whole idea of the singleton design pattern is that there is a single
	 * object. Therefore, we don't want the object to be cloned.
	 *
	 * @access public
	 * @since 1.0.0
	 */
	public function __clone() {
		// Cloning instances of the class is forbidden.
		_doing_it_wrong( __FUNCTION__, esc_html__( 'Cheatin&#8217; huh?', 'elementor' ), '1.0.0' );
	}

	/**
	 * Wakeup.
	 *
	 * Disable unserializing of the class.
	 *
	 * @access public
	 * @since 1.0.0
	 */
	public function __wakeup() {
		// Unserializing instances of the class is forbidden.
		_doing_it_wrong( __FUNCTION__, esc_html__( 'Cheatin&#8217; huh?', 'elementor' ), '1.0.0' );
	}

	/**
	 * Instance.
	 *
	 * Ensures only one instance of the plugin class is loaded or can be loaded.
	 *
	 * @since 1.0.0
	 * @access public
	 * @static
	 *
	 * @return Plugin An instance of the class.
	 */
	public static function instance() {
		if ( is_null( self::$instance ) ) {
			self::$instance = new self();

			/**
			 * Elementor loaded.
			 *
			 * Fires when Elementor was fully loaded and instantiated.
			 *
			 * @since 1.0.0
			 */
			do_action( 'elementor/loaded' );
		}

		return self::$instance;
	}

	/**
	 * Init.
	 *
	 * Initialize Elementor Plugin. Register Elementor support for all the
	 * supported post types and initialize Elementor components.
	 *
	 * @since 1.0.0
	 * @access public
	 */
	public function init() {
		$this->add_cpt_support();

		$this->init_components();

		/**
		 * Elementor init.
		 *
		 * Fires on Elementor init, after Elementor has finished loading but
		 * before any headers are sent.
		 *
		 * @since 1.0.0
		 */
		do_action( 'elementor/init' );
	}

	/**
	 * Init components.
	 *
	 * Initialize Elementor components. Register actions, run setting manager,
	 * initialize all the components that run elementor, and if in admin page
	 * initialize admin components.
	 *
	 * @since 1.0.0
	 * @access private
	 */
	private function init_components() {
		Compatibility::register_actions();
		SettingsManager::run();

		$this->db = new DB();
		$this->controls_manager = new Controls_Manager();
		$this->schemes_manager = new Schemes_Manager();
		$this->elements_manager = new Elements_Manager();
		$this->widgets_manager = new Widgets_Manager();
		$this->skins_manager = new Skins_Manager();
		$this->posts_css_manager = new Posts_CSS_Manager();
		$this->settings = new Settings();
		$this->editor = new Editor();
		$this->preview = new Preview();
		$this->frontend = new Frontend();
		$this->debug = new Debug();
		$this->templates_manager = new TemplateLibrary\Manager();
		$this->maintenance_mode = new Maintenance_Mode();
		$this->modules_manager = new Modules_Manager();

		Api::init();
		Tracker::init();

		if ( is_admin() ) {
			$this->revisions_manager = new Revisions_Manager();
			$this->heartbeat = new Heartbeat();
			$this->wordpress_widgets_manager = new WordPress_Widgets_Manager();
			$this->system_info = new System_Info\Main();
			$this->admin = new Admin();
			$this->tools = new Tools();
			$this->beta_testers = new Beta_Testers();

			if ( Utils::is_ajax() ) {
				new Images_Manager();
			}
		}
	}

	/**
	 * Add custom post type support.
	 *
	 * Register Elementor support for all the supported post types defined by
	 * the user in the admin screen and saved as `elementor_cpt_support` option
	 * in WordPress ``$wpdb->options` table.
	 *
	 * If no custom post type selected, usually in new installs, this method
	 * will return the two default post types: `page` and `post`.
	 *
	 * @since 1.0.0
	 * @access private
	 */
	private function add_cpt_support() {
		$cpt_support = get_option( 'elementor_cpt_support', [ 'page', 'post' ] );

		foreach ( $cpt_support as $cpt_slug ) {
			add_post_type_support( $cpt_slug, 'elementor' );
		}
	}

	/**
	 * Register autoloader.
	 *
	 * Elementor autoloader loads all the classes needed to run the plugin.
	 *
	 * @since 1.6.0
	 * @access private
	 */
	private function register_autoloader() {
		require ELEMENTOR_PATH . '/includes/autoloader.php';

		Autoloader::run();
	}

	/**
	 * Plugin constructor.
	 *
	 * Initializing Elementor plugin.
	 *
	 * @since 1.0.0
	 * @access private
	 */
	private function __construct() {
		$this->register_autoloader();

		add_action( 'init', [ $this, 'init' ], 0 );
	}
}

if ( ! defined( 'ELEMENTOR_TESTS' ) ) {
	// In tests we run the instance manually.
	Plugin::instance();
}