<?php
/**
 * CartFlows Loader.
 *
 * @package CartFlows
 */

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

	/**
	 * Class Cartflows_Loader.
	 */
	final class Cartflows_Loader {

		/**
		 * Member Variable
		 *
		 * @var instance
		 */
		private static $instance = null;

		/**
		 * Member Variable
		 *
		 * @var utils
		 */
		public $utils = null;

		/**
		 * Member Variable
		 *
		 * @var logger
		 */
		public $logger = null;

		/**
		 * Member Variable
		 *
		 * @var options
		 */
		public $options = null;

		/**
		 * Member Variable
		 *
		 * @var meta
		 */
		public $meta = null;

		/**
		 * Member Variable
		 *
		 * @var Tracking_Data
		 */
		public $alldata;

		/**
		 * Member Variable
		 *
		 * @var flow
		 */
		public $flow = null;

		/**
		 *  Member Variable
		 *
		 *  @var wcf_step_objs
		 */

		public $wcf_step_objs = array();

		/**
		 * Member Variable
		 *
		 * @var assets_vars
		 */
		public $assets_vars = null;

		/**
		 *  Member Variable
		 *
		 *  @var assets_vars
		 */

		public $is_woo_active = true;

		/**
		 *  Initiator
		 */
		public static function get_instance() {
			if ( is_null( self::$instance ) ) {

				self::$instance = new self();

				/**
				 * CartFlows loaded.
				 *
				 * Fires when Cartflows was fully loaded and instantiated.
				 *
				 * @since 1.0.0
				 */
				do_action( 'cartflows_loaded' );
			}

			return self::$instance;
		}

		/**
		 * Constructor
		 */
		public function __construct() {
			$this->define_constants();

			// Activation hook.
			register_activation_hook( CARTFLOWS_FILE, array( $this, 'activation_reset' ) );

			// deActivation hook.
			register_deactivation_hook( CARTFLOWS_FILE, array( $this, 'deactivation_reset' ) );

			// Need to add library before the plugin loaded. https://actionscheduler.org/usage/.
			require_once CARTFLOWS_DIR . '/libraries/action-scheduler/action-scheduler.php';

			add_action( 'plugins_loaded', array( $this, 'load_plugin' ), 99 );
			add_action( 'plugins_loaded', array( $this, 'load_cf_textdomain' ) );

		}

		/**
		 * Defines all constants
		 *
		 * @since 1.0.0
		 */
		public function define_constants() {

			define( 'CARTFLOWS_BASE', plugin_basename( CARTFLOWS_FILE ) );
			define( 'CARTFLOWS_DIR', plugin_dir_path( CARTFLOWS_FILE ) );
			define( 'CARTFLOWS_URL', plugins_url( '/', CARTFLOWS_FILE ) );

			define( 'CARTFLOWS_VER', '2.0.2' );
			define( 'CARTFLOWS_SLUG', 'cartflows' );
			define( 'CARTFLOWS_SETTINGS', 'cartflows_settings' );
			define( 'CARTFLOWS_NAME', 'CartFlows' );

			define( 'CARTFLOWS_REQ_CF_PRO_VER', '2.0.0' );

			// For backward compatibility we are setting CARTFLOWS_LEGACY_ADMIN to false, so pro-loader for new UI will be load.
			define( 'CARTFLOWS_LEGACY_ADMIN', false );

			define( 'CARTFLOWS_ASSETS_VERSION', get_option( 'cartflows-assets-version', time() ) );

			define( 'CARTFLOWS_FLOW_POST_TYPE', 'cartflows_flow' );
			define( 'CARTFLOWS_STEP_POST_TYPE', 'cartflows_step' );

			define( 'CARTFLOWS_FLOW_PERMALINK_SLUG', 'flow' );
			define( 'CARTFLOWS_STEP_PERMALINK_SLUG', 'step' );

			if ( ! defined( 'CARTFLOWS_SERVER_URL' ) ) {
				define( 'CARTFLOWS_SERVER_URL', 'https://my.cartflows.com/' );
			}
			define( 'CARTFLOWS_DOMAIN_URL', 'https://cartflows.com/' );
			define( 'CARTFLOWS_TEMPLATES_URL', 'https://templates.cartflows.com/' );
			define( 'CARTFLOWS_TAXONOMY_STEP_TYPE', 'cartflows_step_type' );
			define( 'CARTFLOWS_TAXONOMY_STEP_FLOW', 'cartflows_step_flow' );

			if ( ! defined( 'CARTFLOWS_TAXONOMY_STEP_PAGE_BUILDER' ) ) {
				define( 'CARTFLOWS_TAXONOMY_STEP_PAGE_BUILDER', 'cartflows_step_page_builder' );
			}
			if ( ! defined( 'CARTFLOWS_TAXONOMY_FLOW_PAGE_BUILDER' ) ) {
				define( 'CARTFLOWS_TAXONOMY_FLOW_PAGE_BUILDER', 'cartflows_flow_page_builder' );
			}
			if ( ! defined( 'CARTFLOWS_TAXONOMY_FLOW_CATEGORY' ) ) {
				define( 'CARTFLOWS_TAXONOMY_FLOW_CATEGORY', 'cartflows_flow_category' );
			}

			if ( ! defined( 'CARTFLOWS_LOG_DIR' ) ) {

				$upload_dir = wp_upload_dir( null, false );

				define( 'CARTFLOWS_LOG_DIR', $upload_dir['basedir'] . '/cartflows-logs/' );
			}

			$cookie_prefix = '';

			if ( defined( 'CARTFLOWS_COOKIE_PREFIX' ) ) {
				$cookie_prefix = CARTFLOWS_COOKIE_PREFIX;
			}

			define( 'CARTFLOWS_ACTIVE_CHECKOUT', $cookie_prefix . 'wcf_active_checkout' );

			if ( ! defined( 'CARTFLOWS_HTTPS' ) ) {
				define( 'CARTFLOWS_HTTPS', is_ssl() ? true : false );
			}

			$GLOBALS['wcf_step'] = null;
		}

		/**
		 * Get site slug
		 *
		 * @since 1.6.15
		 * @return string
		 */
		public function get_site_slug() {
			return Cartflows_Helper::get_common_setting( 'default_page_builder' );
		}

		/**
		 * Get site URL
		 *
		 * @since 1.6.15
		 * @param  string $page_builder_slug Page builder slug.
		 * @return string
		 */
		public function get_site_url( $page_builder_slug = '' ) {

			$page_builder_slug = ( ! empty( $page_builder_slug ) ) ? $page_builder_slug : wcf()->get_site_slug();

			if ( ! empty( $page_builder_slug ) ) {
				return trailingslashit( CARTFLOWS_TEMPLATES_URL ) . $page_builder_slug . '/';
			}

			return CARTFLOWS_TEMPLATES_URL;
		}

		/**
		 * Loads plugin files.
		 *
		 * @since 1.0.0
		 *
		 * @return void
		 */
		public function load_plugin() {
			$this->load_helper_files_components();
			$this->load_core_files();
			$this->load_core_components();

			add_action( 'wp_loaded', array( $this, 'initialize' ) );
			add_action( 'cartflows_pro_init', array( $this, 'after_cartflows_pro_init' ) );

			if ( ! $this->is_woo_active ) {
				add_action( 'admin_notices', array( $this, 'fails_to_load' ) );
			}

			/**
			 * CartFlows Init.
			 *
			 * Fires when Cartflows is instantiated.
			 *
			 * @since 1.0.0
			 */
			do_action( 'cartflows_init' );
		}

		/**
		 * After CartFlows Pro init.
		 *
		 * @since 1.1.19
		 *
		 * @return void
		 */
		public function after_cartflows_pro_init() {
			if ( ! is_admin() ) {
				return;
			}

			if ( version_compare( CARTFLOWS_PRO_VER, CARTFLOWS_REQ_CF_PRO_VER, '<' ) ) {
				add_action( 'admin_notices', array( $this, 'required_cartflows_pro_notice' ) );
			}

			if ( version_compare( CARTFLOWS_PRO_VER, '1.11.14', '=' ) && 'starter' === CARTFLOWS_PRO_PLUGIN_TYPE ) {
				add_action( 'admin_notices', array( $this, 'show_upgrade_starter_plan_notice' ) );
			}
		}

		/**
		 * Show CartFlows Pro: Starter plan update Notice.
		 *
		 * @since 1.11.14
		 *
		 * @return void
		 */
		public function show_upgrade_starter_plan_notice() {

			$class = 'notice notice-warning wcf-notice';
			/* translators: %s: html tags */
			$message = sprintf( __( 'The new version of  %1$s%3$s%2$s is released. Please download the latest zip to install the new updates. Click here to %4$sdownload%5$s.', 'cartflows' ), '<strong>', '</strong>', CARTFLOWS_PRO_DISPLAY_TITLE, '<a href="https://my.cartflows.com/" target="_blank">', '</a>' );

			printf( '<div class="%1$s"><p>%2$s</p></div>', esc_attr( $class ), wp_kses_post( $message ) );
		}

		/**
		 * Required CartFlows Pro Notice.
		 *
		 * @since 1.1.19
		 *
		 * @return void
		 */
		public function required_cartflows_pro_notice() {
			$required_pro_version = CARTFLOWS_REQ_CF_PRO_VER;

			$class = 'notice notice-warning wcf-notice';
			/* translators: %s: html tags */
			$message = sprintf( __( 'You are using an older version of %1$s%3$s%2$s. Please update %1$s%3$s%2$s plugin to version %1$s%4$s%2$s or higher.', 'cartflows' ), '<strong>', '</strong>', CARTFLOWS_PRO_DISPLAY_TITLE, $required_pro_version );

			printf( '<div class="%1$s"><p>%2$s</p></div>', esc_attr( $class ), wp_kses_post( $message ) );
		}

		/**
		 * Load Helper Files and Components.
		 *
		 * @since 1.0.0
		 *
		 * @return void
		 */
		public function load_helper_files_components() {
			$this->is_woo_active = function_exists( 'WC' );

			/* Public Utils */
			include_once CARTFLOWS_DIR . 'classes/class-cartflows-utils.php';

			/* Public Global Name space Functions */
			include_once CARTFLOWS_DIR . 'classes/class-cartflows-functions.php';

			/* Admin Helper */
			include_once CARTFLOWS_DIR . 'classes/class-cartflows-helper.php';

			/* Factory objects */
			include_once CARTFLOWS_DIR . 'classes/class-cartflows-step-factory.php';

			/* Meta Default Values */
			include_once CARTFLOWS_DIR . 'classes/class-cartflows-default-meta.php';

			require_once CARTFLOWS_DIR . 'classes/class-cartflows-tracking.php';

			if ( is_admin() ) {
				require_once CARTFLOWS_DIR . 'libraries/astra-notices/class-astra-notices.php';
			}

			if ( ! class_exists( 'BSF_Analytics_Loader' ) ) {
				require_once CARTFLOWS_DIR . '/admin/bsf-analytics/class-bsf-analytics-loader.php';
			}

			$bsf_analytics = BSF_Analytics_Loader::get_instance();

			$bsf_analytics->set_entity(
				array(
					'cf' => array(
						'product_name'   => 'CartFlows',
						'usage_doc_link' => 'https://my.cartflows.com/usage-tracking/',
						'path'           => CARTFLOWS_DIR . 'admin/bsf-analytics',
						'author'         => 'CartFlows Inc',
					),
				)
			);

			$this->utils   = Cartflows_Utils::get_instance();
			$this->options = Cartflows_Default_Meta::get_instance();

			// Plugin major update notice.
			if ( ! class_exists( 'Cartflows_Plugin_Update_Notifications' ) ) {
				require_once CARTFLOWS_DIR . 'libraries/cartflows-plugin-update-notifications/class-cartflows-plugin-update-notifications.php';
			}
		}

		/**
		 * Init hooked function.
		 *
		 * @since 1.0.0
		 *
		 * @return void
		 */
		public function initialize() {
			$this->assets_vars = $this->utils->get_assets_path();
		}

		/**
		 * Load Core Files.
		 *
		 * @since 1.0.0
		 *
		 * @return void
		 */
		public function load_core_files() {
			/* Update compatibility. */
			require_once CARTFLOWS_DIR . 'classes/class-cartflows-update.php';

			/* Page builder compatibilty class */
			include_once CARTFLOWS_DIR . 'compatibilities/class-cartflows-compatibility.php';

			/* Theme support */
			if ( $this->is_woo_active ) {
				/* Woo hooks */
				include_once CARTFLOWS_DIR . 'classes/class-cartflows-woo-hooks.php';
			}

			/* Importer */
			include_once CARTFLOWS_DIR . 'classes/importer/class-cartflows-importer-loader.php';

			/* Admin Meta Fields*/
			include_once CARTFLOWS_DIR . 'classes/fields/typography/class-cartflows-font-families.php';

			if ( is_admin() ) {

				/* Admin helper */
				include_once CARTFLOWS_DIR . 'classes/class-cartflows-admin.php';

			}

			/* New admin loader with namespace */
			include_once CARTFLOWS_DIR . 'admin-loader.php';

			if ( class_exists( 'WP_CLI' ) ) {
				/* New admin wp-cli with namespace */
				require_once CARTFLOWS_DIR . 'admin-core/inc/wp-cli.php';
			}

			/* Logger */
			include_once CARTFLOWS_DIR . 'classes/logger/class-cartflows-log-handler-interface.php';
			include_once CARTFLOWS_DIR . 'classes/logger/class-cartflows-log-handler.php';
			include_once CARTFLOWS_DIR . 'classes/logger/class-cartflows-log-handler-file.php';
			include_once CARTFLOWS_DIR . 'classes/logger/class-cartflows-log-levels.php';
			include_once CARTFLOWS_DIR . 'classes/logger/class-cartflows-logger-interface.php';
			include_once CARTFLOWS_DIR . 'classes/logger/class-cartflows-wc-logger.php';

			/* Core Modules */
			include_once CARTFLOWS_DIR . 'classes/class-cartflows-logger.php';

			/* Frontend Global */
			include_once CARTFLOWS_DIR . 'classes/class-cartflows-frontend.php';
			require_once CARTFLOWS_DIR . 'classes/class-cartflows-flow-frontend.php';

			/* Modules */
			include_once CARTFLOWS_DIR . 'modules/flow/class-cartflows-flow.php';
			include_once CARTFLOWS_DIR . 'modules/landing/class-cartflows-landing.php';

			if ( $this->is_woo_active ) {
				include_once CARTFLOWS_DIR . 'modules/checkout/class-cartflows-checkout.php';
				include_once CARTFLOWS_DIR . 'modules/thankyou/class-cartflows-thankyou.php';
				include_once CARTFLOWS_DIR . 'modules/optin/class-cartflows-optin.php';
				include_once CARTFLOWS_DIR . 'modules/woo-dynamic-flow/class-cartflows-woo-dynamic-flow.php';
				include_once CARTFLOWS_DIR . 'modules/email-report/class-cartflows-admin-report-emails.php';
			}

			if ( class_exists( '\Elementor\Plugin' ) ) {
				// Load the widgets.
				include_once CARTFLOWS_DIR . 'modules/elementor/class-cartflows-el-widgets-loader.php';
			}

			if ( class_exists( 'FLBuilder' ) ) {

				include_once CARTFLOWS_DIR . 'modules/beaver-builder/class-cartflows-bb-modules-loader.php';
			}

			include_once CARTFLOWS_DIR . 'classes/class-cartflows-admin-notices.php';

			include_once CARTFLOWS_DIR . 'classes/deprecated/deprecated-hooks.php';

			include_once CARTFLOWS_DIR . 'modules/gutenberg/classes/class-cartflows-block-loader.php';
		}

		/**
		 * Load Core Components.
		 *
		 * @since 1.0.0
		 *
		 * @return void
		 */
		public function load_core_components() {
			$this->logger = Cartflows_Logger::get_instance();
			$this->flow   = Cartflows_Flow_Frontend::get_instance();
		}

		/**
		 * Create files/directories.
		 */
		public function create_files() {
			// Install files and folders for uploading files and prevent hotlinking.
			$upload_dir = wp_upload_dir();

			$files = array(
				array(
					'base'    => CARTFLOWS_LOG_DIR,
					'file'    => '.htaccess',
					'content' => 'deny from all',
				),
				array(
					'base'    => CARTFLOWS_LOG_DIR,
					'file'    => 'index.html',
					'content' => '',
				),
			);

			foreach ( $files as $file ) {
				if ( wp_mkdir_p( $file['base'] ) && ! file_exists( trailingslashit( $file['base'] ) . $file['file'] ) ) {
					$file_handle = @fopen( trailingslashit( $file['base'] ) . $file['file'], 'w' ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged, WordPress.WP.AlternativeFunctions.file_system_read_fopen
					if ( $file_handle ) {
						fwrite( $file_handle, $file['content'] ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_read_fwrite, WordPressVIPMinimum.Functions.RestrictedFunctions.file_ops_fwrite
						fclose( $file_handle ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_read_fclose
					}
				}
			}
		}

		/**
		 * Load CartFlows Pro Text Domain.
		 * This will load the translation textdomain depending on the file priorities.
		 *      1. Global Languages /wp-content/languages/cartflows/ folder
		 *      2. Local dorectory /wp-content/plugins/cartflows/languages/ folder
		 *
		 * @since 1.0.3
		 * @return void
		 */
		public function load_cf_textdomain() {
			// Default languages directory for CartFlows Pro.
			$lang_dir = CARTFLOWS_DIR . 'languages/';

			/**
			 * Filters the languages directory path to use for CartFlows Pro.
			 *
			 * @param string $lang_dir The languages directory path.
			 */
			$lang_dir = apply_filters( 'cartflows_languages_directory', $lang_dir );

			// Traditional WordPress plugin locale filter.
			global $wp_version;

			$get_locale = get_locale();

			if ( $wp_version >= 4.7 ) {
				$get_locale = get_user_locale();
			}

			/**
			 * Language Locale for CartFlows Pro
			 *
			 * @var $get_locale The locale to use.
			 * Uses get_user_locale()` in WordPress 4.7 or greater,
			 * otherwise uses `get_locale()`.
			 */
			$locale = apply_filters( 'plugin_locale', $get_locale, 'cartflows' );
			$mofile = sprintf( '%1$s-%2$s.mo', 'cartflows', $locale );

			// Setup paths to current locale file.
			$mofile_local  = $lang_dir . $mofile;
			$mofile_global = WP_LANG_DIR . '/plugins/' . $mofile;

			if ( file_exists( $mofile_global ) ) {
				// Look in global /wp-content/languages/cartflows/ folder.
				load_textdomain( 'cartflows', $mofile_global );
			} elseif ( file_exists( $mofile_local ) ) {
				// Look in local /wp-content/plugins/cartflows/languages/ folder.
				load_textdomain( 'cartflows', $mofile_local );
			} else {
				// Load the default language files.
				load_plugin_textdomain( 'cartflows', false, $lang_dir );
			}
		}

		/**
		 * Fires admin notice when Elementor is not installed and activated.
		 *
		 * @since 1.0.0
		 *
		 * @return void
		 */
		public function fails_to_load() {
			$screen = get_current_screen();

			if ( ! wcf()->utils->is_step_post_type() ) {
				return;
			}

			if ( ! wcf()->utils->check_is_woo_required_page() ) {
				return;
			}

			$skip_notice = false;

			wp_localize_script( 'wcf-global-admin', 'cartflows_woo', array( 'show_update_post' => $skip_notice ) );

			$class = 'notice notice-warning';
			/* translators: %s: html tags */
			$message = sprintf( __( 'This %1$sCartFlows%2$s page requires %1$sWooCommerce%2$s plugin installed & activated.', 'cartflows' ), '<strong>', '</strong>' );

			$plugin = 'woocommerce/woocommerce.php';

			if ( _is_woo_installed() ) {
				if ( ! current_user_can( 'activate_plugins' ) ) {
					return;
				}

				$action_url   = wp_nonce_url( 'plugins.php?action=activate&amp;plugin=' . $plugin . '&amp;plugin_status=all&amp;paged=1&amp;s', 'activate-plugin_' . $plugin );
				$button_label = __( 'Activate WooCommerce', 'cartflows' );
			} else {
				if ( ! current_user_can( 'install_plugins' ) ) {
					return;
				}

				$action_url   = wp_nonce_url( self_admin_url( 'update.php?action=install-plugin&plugin=woocommerce' ), 'install-plugin_woocommerce' );
				$button_label = __( 'Install WooCommerce', 'cartflows' );
			}

			$button = '<p><a href="' . $action_url . '" class="button-primary">' . $button_label . '</a></p><p></p>';

			printf( '<div class="%1$s"><p>%2$s</p>%3$s</div>', esc_attr( $class ), wp_kses_post( $message ), wp_kses_post( $button ) );
		}

		/**
		 * Activation Reset
		 */
		public function activation_reset() {
			if ( ! defined( 'CARTFLOWS_LOG_DIR' ) ) {

				$upload_dir = wp_upload_dir( null, false );

				define( 'CARTFLOWS_LOG_DIR', $upload_dir['basedir'] . '/cartflows-logs/' );
			}

			$this->create_files();
			include_once CARTFLOWS_DIR . 'classes/class-cartflows-helper.php';
			include_once CARTFLOWS_DIR . 'classes/class-cartflows-functions.php';
			include_once CARTFLOWS_DIR . 'modules/flow/classes/class-cartflows-flow-post-type.php';
			include_once CARTFLOWS_DIR . 'modules/flow/classes/class-cartflows-step-post-type.php';

			Cartflows_Flow_Post_Type::get_instance()->flow_post_type();
			Cartflows_Step_Post_Type::get_instance()->step_post_type();
			// Required to flush rules while registering custom post type.
			flush_rewrite_rules(); //phpcs:ignore WordPressVIPMinimum.Functions.RestrictedFunctions.flush_rewrite_rules_flush_rewrite_rules

			// Update the cartflows asset version when plugin activated.
			update_option( 'cartflows-assets-version', time() );

			update_option( 'wcf_start_onboarding', true );
		}

		/**
		 * Deactivation Reset
		 */
		public function deactivation_reset() {

		}

		/**
		 * Logger Class Instance
		 */
		public function logger() {
			return Cartflows_Logger::get_instance();
		}
	}

	/**
	 *  Prepare if class 'Cartflows_Loader' exist.
	 *  Kicking this off by calling 'get_instance()' method
	 */
	Cartflows_Loader::get_instance();
}

/**
 * Get global class.
 *
 * @return object
 */
function wcf() {
	return Cartflows_Loader::get_instance();
}

if ( ! function_exists( '_is_woo_installed' ) ) {

	/**
	 * Is woocommerce plugin installed.
	 *
	 * @since 1.0.0
	 *
	 * @access public
	 */
	function _is_woo_installed() {
		$path    = 'woocommerce/woocommerce.php';
		$plugins = get_plugins();

		return isset( $plugins[ $path ] );
	}
}