<?php

namespace WowDevs\DynamicTags;

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

/**
 * Main class plugin
 */
class Plugin {

	/**
	 * @var Plugin
	 */
	private static $_instance;

	/**
	 * @var Manager
	 */
	private $_manager;

	/**
	 * @return string
	 */
	public function get_version() {
		return WOWDEVS_DT_VERSION;
	}

	/**
	 * Throw 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.
	 *
	 * @since 1.0.0
	 * @return void
	 */
	public function __clone() {
		// Cloning instances of the class is forbidden
		_doing_it_wrong( __FUNCTION__, esc_html__( 'Cheatin&#8217; huh?', 'wowdevs-dynamic-tags' ), '1.0.0' );
	}

	/**
	 * Disable unserializing of the class
	 *
	 * @since 1.0.0
	 * @return void
	 */
	public function __wakeup() {
		// Unserializing instances of the class is forbidden
		_doing_it_wrong( __FUNCTION__, esc_html__( 'Cheatin&#8217; huh?', 'wowdevs-dynamic-tags' ), '1.0.0' );
	}

	/**
	 * @return Plugin
	 */
	public static function instance() {
		if ( is_null( self::$_instance ) ) {
			self::$_instance = new self();
		}

		return self::$_instance;
	}

	/**
	 * Map a class in this namespace onto a file under includes/.
	 *
	 * WowDevs\DynamicTags\Tags\Post_Title -> includes/tags/post-title.php
	 * WowDevs\DynamicTags\Base\Tag_Base   -> includes/base/tag-base.php
	 *
	 * The namespace mirrors the path, CamelCase becomes kebab-case, `_` becomes `-`.
	 * Everything this plugin ships lives under includes/, so nothing else is searched.
	 */
	public function autoload( $class ) {
		if ( 0 !== strpos( $class, __NAMESPACE__ ) ) {
			return;
		}

		$filename = strtolower(
			preg_replace(
				[ '/^' . preg_quote( __NAMESPACE__, '/' ) . '\\\\/', '/([a-z])([A-Z])/', '/_/', '/\\\\/' ],
				[ '', '$1-$2', '-', DIRECTORY_SEPARATOR ],
				$class
			)
		);
		$filename = WOWDEVS_DT_INC_PATH . $filename . '.php';

		if ( is_readable( $filename ) ) {
			include $filename;
		}
	}

	public function elementor_init() {
		$this->_manager = new Manager();
	}

	protected function add_actions() {
		add_action( 'elementor/init', [ $this, 'elementor_init' ] );
	}

	/**
	 * Files that must exist before Elementor boots: the Dynamic Select control registers
	 * itself on `elementor/controls/register`, and four tags use its control type.
	 */
	private function _includes() {
		require_once WOWDEVS_DT_INC_PATH . 'controls/select-input/dynamic-input-module.php';
		require_once WOWDEVS_DT_INC_PATH . 'controls/select-input/dynamic-select.php';
		require_once WOWDEVS_DT_INC_PATH . 'traits/utils-trait.php';
		require_once WOWDEVS_DT_INC_PATH . 'manager.php';
	}

	/**
	 * Plugin constructor.
	 */
	private function __construct() {
		spl_autoload_register( [ $this, 'autoload' ] );

		$this->_includes();
		$this->add_actions();
	}
}

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