<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
/**
 * Manage restaurant menus from your WordPress site,
 * via a new "nova" CPT.
 *
 * Put the following code in your theme's Food Menu Page Template to customize the markup of the menu.
 *
 * if ( class_exists( 'Nova_Restaurant' ) ) {
 *  Nova_Restaurant::init( array(
 *      'menu_tag'               => 'section',
 *      'menu_class'             => 'menu-items',
 *      'menu_header_tag'        => 'header',
 *      'menu_header_class'      => 'menu-group-header',
 *      'menu_title_tag'         => 'h1',
 *      'menu_title_class'       => 'menu-group-title',
 *      'menu_description_tag'   => 'div',
 *      'menu_description_class' => 'menu-group-description',
 *  ) );
 * }
 *
 * @todo
 * - Bulk/Quick edit response of Menu Item rows is broken.
 * - Drag and Drop reordering.
 *
 * @package automattic/jetpack
 */

use Automattic\Jetpack\Assets;

/**
 * Create the new Nova CPT.
 */
class Nova_Restaurant {
	const MENU_ITEM_POST_TYPE = 'nova_menu_item';
	const MENU_ITEM_LABEL_TAX = 'nova_menu_item_label';
	const MENU_TAX            = 'nova_menu';

	/**
	 * Version number used when enqueuing all resources (css and js).
	 *
	 * @var string
	 */
	public $version = '20210303';

	/**
	 * Default markup for the menu items.
	 *
	 * @var array
	 */
	protected $default_menu_item_loop_markup = array(
		'menu_tag'               => 'section',
		'menu_class'             => 'menu-items',
		'menu_header_tag'        => 'header',
		'menu_header_class'      => 'menu-group-header',
		'menu_title_tag'         => 'h1',
		'menu_title_class'       => 'menu-group-title',
		'menu_description_tag'   => 'div',
		'menu_description_class' => 'menu-group-description',
	);

	/**
	 * Array of markup for the menu items.
	 *
	 * @var array
	 */
	protected $menu_item_loop_markup = array();

	/**
	 * Last term ID of a loop of menu items.
	 *
	 * @var bool|int
	 */
	protected $menu_item_loop_last_term_id = false;

	/**
	 * Current term ID of a loop of menu items.
	 *
	 * @var bool|int
	 */
	protected $menu_item_loop_current_term = false;

	/**
	 * Initialize class.
	 *
	 * @param array $menu_item_loop_markup Array of markup for the menu items.
	 *
	 * @return self
	 */
	public static function init( $menu_item_loop_markup = array() ) {
		static $instance = false;

		if ( ! $instance ) {
			$instance = new Nova_Restaurant();
		}

		if ( $menu_item_loop_markup ) {
			$instance->menu_item_loop_markup = wp_parse_args( $menu_item_loop_markup, $instance->default_menu_item_loop_markup );
		}

		return $instance;
	}

	/**
	 * Constructor.
	 * Hook into WordPress to create CPT and utilities if needed.
	 */
	public function __construct() {
		if ( ! $this->site_supports_nova() ) {
			return;
		}

		$this->register_taxonomies();
		$this->register_post_types();
		add_action( 'admin_menu', array( $this, 'add_admin_menus' ) );
		add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_nova_styles' ) );
		add_action( 'admin_head', array( $this, 'set_custom_font_icon' ) );

		// Always sort menu items correctly
		add_action( 'parse_query', array( $this, 'sort_menu_item_queries_by_menu_order' ) );
		add_filter( 'posts_results', array( $this, 'sort_menu_item_queries_by_menu_taxonomy' ), 10, 2 );

		add_action( 'wp_insert_post', array( $this, 'add_post_meta' ) );

		$this->menu_item_loop_markup = $this->default_menu_item_loop_markup;

		// Only output our Menu Item Loop Markup on a real blog view.  Not feeds, XML-RPC, admin, etc.
		add_filter( 'template_include', array( $this, 'setup_menu_item_loop_markup__in_filter' ) );

		add_filter( 'enter_title_here', array( $this, 'change_default_title' ) );
		add_filter( 'post_updated_messages', array( $this, 'updated_messages' ) );
		add_filter( 'dashboard_glance_items', array( $this, 'add_to_dashboard' ) );
	}

	/**
	 * Should this Custom Post Type be made available?
	 *
	 * @return bool
	 */
	public function site_supports_nova() {
		// If we're on WordPress.com, and it has the menu site vertical.
		if ( function_exists( 'site_vertical' ) && 'nova_menu' === site_vertical() ) {
			return true;
		}

		// Else, if the current theme requests it.
		if ( current_theme_supports( self::MENU_ITEM_POST_TYPE ) ) {
			return true;
		}

		// Otherwise, say no unless something wants to filter us to say yes.
		/**
		 * Allow something else to hook in and enable this CPT.
		 *
		 * @module custom-content-types
		 *
		 * @since 2.6.0
		 *
		 * @param bool false Whether or not to enable this CPT.
		 * @param string $var The slug for this CPT.
		 */
		return (bool) apply_filters( 'jetpack_enable_cpt', false, self::MENU_ITEM_POST_TYPE );
	}

	/* Setup */

	/**
	 * Register Taxonomies and Post Type
	 */
	public function register_taxonomies() {
		if ( ! taxonomy_exists( self::MENU_ITEM_LABEL_TAX ) ) {
			register_taxonomy(
				self::MENU_ITEM_LABEL_TAX,
				self::MENU_ITEM_POST_TYPE,
				array(
					'labels'       => array(
						/* translators: this is about a food menu */
						'name'                       => __( 'Menu Item Labels', 'jetpack' ),
						/* translators: this is about a food menu */
						'singular_name'              => __( 'Menu Item Label', 'jetpack' ),
						/* translators: this is about a food menu */
						'search_items'               => __( 'Search Menu Item Labels', 'jetpack' ),
						'popular_items'              => __( 'Popular Labels', 'jetpack' ),
						/* translators: this is about a food menu */
						'all_items'                  => __( 'All Menu Item Labels', 'jetpack' ),
						/* translators: this is about a food menu */
						'edit_item'                  => __( 'Edit Menu Item Label', 'jetpack' ),
						/* translators: this is about a food menu */
						'view_item'                  => __( 'View Menu Item Label', 'jetpack' ),
						/* translators: this is about a food menu */
						'update_item'                => __( 'Update Menu Item Label', 'jetpack' ),
						/* translators: this is about a food menu */
						'add_new_item'               => __( 'Add New Menu Item Label', 'jetpack' ),
						/* translators: this is about a food menu */
						'new_item_name'              => __( 'New Menu Item Label Name', 'jetpack' ),
						'separate_items_with_commas' => __( 'For example, spicy, favorite, etc. <br /> Separate Labels with commas', 'jetpack' ),
						'add_or_remove_items'        => __( 'Add or remove Labels', 'jetpack' ),
						'choose_from_most_used'      => __( 'Choose from the most used Labels', 'jetpack' ),
						'items_list_navigation'      => __( 'Menu item label list navigation', 'jetpack' ),
						'items_list'                 => __( 'Menu item labels list', 'jetpack' ),
					),
					'no_tagcloud'  => __( 'No Labels found', 'jetpack' ),
					'hierarchical' => false,
				)
			);
		}

		if ( ! taxonomy_exists( self::MENU_TAX ) ) {
			register_taxonomy(
				self::MENU_TAX,
				self::MENU_ITEM_POST_TYPE,
				array(
					'labels'        => array(
						/* translators: this is about a food menu */
						'name'                  => __( 'Menu Sections', 'jetpack' ),
						/* translators: this is about a food menu */
						'singular_name'         => __( 'Menu Section', 'jetpack' ),
						/* translators: this is about a food menu */
						'search_items'          => __( 'Search Menu Sections', 'jetpack' ),
						/* translators: this is about a food menu */
						'all_items'             => __( 'All Menu Sections', 'jetpack' ),
						/* translators: this is about a food menu */
						'parent_item'           => __( 'Parent Menu Section', 'jetpack' ),
						/* translators: this is about a food menu */
						'parent_item_colon'     => __( 'Parent Menu Section:', 'jetpack' ),
						/* translators: this is about a food menu */
						'edit_item'             => __( 'Edit Menu Section', 'jetpack' ),
						/* translators: this is about a food menu */
						'view_item'             => __( 'View Menu Section', 'jetpack' ),
						/* translators: this is about a food menu */
						'update_item'           => __( 'Update Menu Section', 'jetpack' ),
						/* translators: this is about a food menu */
						'add_new_item'          => __( 'Add New Menu Section', 'jetpack' ),
						/* translators: this is about a food menu */
						'new_item_name'         => __( 'New Menu Sections Name', 'jetpack' ),
						'items_list_navigation' => __( 'Menu section list navigation', 'jetpack' ),
						'items_list'            => __( 'Menu section list', 'jetpack' ),
					),
					'rewrite'       => array(
						'slug'         => 'menu',
						'with_front'   => false,
						'hierarchical' => true,
					),
					'hierarchical'  => true,
					'show_tagcloud' => false,
					'query_var'     => 'menu',
				)
			);
		}
	}

	/**
	 * Register our Post Type.
	 */
	public function register_post_types() {
		if ( post_type_exists( self::MENU_ITEM_POST_TYPE ) ) {
			return;
		}

		register_post_type(
			self::MENU_ITEM_POST_TYPE,
			array(
				'description'          => __( "Items on your restaurant's menu", 'jetpack' ),

				'labels'               => array(
					/* translators: this is about a food menu */
					'name'                  => __( 'Menu Items', 'jetpack' ),
					/* translators: this is about a food menu */
					'singular_name'         => __( 'Menu Item', 'jetpack' ),
					/* translators: this is about a food menu */
					'menu_name'             => __( 'Food Menus', 'jetpack' ),
					/* translators: this is about a food menu */
					'all_items'             => __( 'Menu Items', 'jetpack' ),
					/* translators: this is about a food menu */
					'add_new'               => __( 'Add One Item', 'jetpack' ),
					/* translators: this is about a food menu */
					'add_new_item'          => __( 'Add Menu Item', 'jetpack' ),
					/* translators: this is about a food menu */
					'edit_item'             => __( 'Edit Menu Item', 'jetpack' ),
					/* translators: this is about a food menu */
					'new_item'              => __( 'New Menu Item', 'jetpack' ),
					/* translators: this is about a food menu */
					'view_item'             => __( 'View Menu Item', 'jetpack' ),
					/* translators: this is about a food menu */
					'search_items'          => __( 'Search Menu Items', 'jetpack' ),
					/* translators: this is about a food menu */
					'not_found'             => __( 'No Menu Items found', 'jetpack' ),
					/* translators: this is about a food menu */
					'not_found_in_trash'    => __( 'No Menu Items found in Trash', 'jetpack' ),
					'filter_items_list'     => __( 'Filter menu items list', 'jetpack' ),
					'items_list_navigation' => __( 'Menu item list navigation', 'jetpack' ),
					'items_list'            => __( 'Menu items list', 'jetpack' ),
				),
				'supports'             => array(
					'title',
					'editor',
					'thumbnail',
					'excerpt',
				),
				'rewrite'              => array(
					'slug'       => 'item',
					'with_front' => false,
					'feeds'      => false,
					'pages'      => false,
				),
				'register_meta_box_cb' => array( $this, 'register_menu_item_meta_boxes' ),

				'public'               => true,
				'show_ui'              => true, // set to false to replace with custom UI
				'menu_position'        => 20, // below Pages
				'capability_type'      => 'page',
				'map_meta_cap'         => true,
				'has_archive'          => false,
				'query_var'            => 'item',
			)
		);
	}

	/**
	 * Update messages for the Menu Item admin.
	 *
	 * @param array $messages Existing post update messages.
	 *
	 * @return array $messages Updated post update messages.
	 */
	public function updated_messages( $messages ) {
		global $post;

		$messages[ self::MENU_ITEM_POST_TYPE ] = array(
			0  => '', // Unused. Messages start at index 1.
			1  => sprintf(
				/* translators: this is about a food menu. Placeholder is a link to the food menu. */
				__( 'Menu item updated. <a href="%s">View item</a>', 'jetpack' ),
				esc_url( get_permalink( $post->ID ) )
			),
			2  => esc_html__( 'Custom field updated.', 'jetpack' ),
			3  => esc_html__( 'Custom field deleted.', 'jetpack' ),
			/* translators: this is about a food menu */
			4  => esc_html__( 'Menu item updated.', 'jetpack' ),
			5  => isset( $_GET['revision'] ) // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Copying core message handling.
				? sprintf(
					/* translators: %s: date and time of the revision */
					esc_html__( 'Menu item restored to revision from %s', 'jetpack' ),
					wp_post_revision_title( (int) $_GET['revision'], false ) // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Copying core message handling.
				)
				: false,
			6  => sprintf(
				/* translators: this is about a food menu. Placeholder is a link to the food menu. */
				__( 'Menu item published. <a href="%s">View item</a>', 'jetpack' ),
				esc_url( get_permalink( $post->ID ) )
			),
			/* translators: this is about a food menu */
			7  => esc_html__( 'Menu item saved.', 'jetpack' ),
			8  => sprintf(
				/* translators: this is about a food menu */
				__( 'Menu item submitted. <a target="_blank" href="%s">Preview item</a>', 'jetpack' ),
				esc_url( add_query_arg( 'preview', 'true', get_permalink( $post->ID ) ) )
			),
			9  => sprintf(
				/* translators: this is about a food menu. 1. Publish box date format, see https://php.net/date 2. link to the food menu. */
				__( 'Menu item scheduled for: <strong>%1$s</strong>. <a target="_blank" href="%2$s">Preview item</a>', 'jetpack' ),
				/* translators: Publish box date format, see https://php.net/date */
				date_i18n( __( 'M j, Y @ G:i', 'jetpack' ), strtotime( $post->post_date ) ),
				esc_url( get_permalink( $post->ID ) )
			),
			10 => sprintf(
				/* translators: this is about a food menu. Placeholder is a link to the food menu. */
				__( 'Menu item draft updated. <a target="_blank" href="%s">Preview item</a>', 'jetpack' ),
				esc_url( add_query_arg( 'preview', 'true', get_permalink( $post->ID ) ) )
			),
		);

		return $messages;
	}

	/**
	 * Nova styles and scripts.
	 *
	 * @param string $hook Page hook.
	 *
	 * @return void
	 */
	public function enqueue_nova_styles( $hook ) {
		global $post_type;
		$pages = array( 'edit.php', 'post.php', 'post-new.php' );

		if ( in_array( $hook, $pages, true ) && $post_type === self::MENU_ITEM_POST_TYPE ) {
			wp_enqueue_style( 'nova-style', plugins_url( 'css/nova.css', __FILE__ ), array(), $this->version );
		}

		wp_enqueue_style( 'nova-font', plugins_url( 'css/nova-font.css', __FILE__ ), array(), $this->version );
	}

	/**
	 * Change ‘Enter Title Here’ text for the Menu Item.
	 *
	 * @param string $title Default title placeholder text.
	 *
	 * @return string
	 */
	public function change_default_title( $title ) {
		if ( self::MENU_ITEM_POST_TYPE === get_post_type() ) {
			/* translators: this is about a food menu */
			$title = esc_html__( "Enter the menu item's name here", 'jetpack' );
		}

		return $title;
	}

	/**
	 * Add to Dashboard At A Glance
	 *
	 * @return void
	 */
	public function add_to_dashboard() {
		$number_menu_items = wp_count_posts( self::MENU_ITEM_POST_TYPE );

		if ( current_user_can( 'administrator' ) ) {
			$number_menu_items_published = sprintf(
				'<a href="%1$s">%2$s</a>',
				esc_url(
					get_admin_url(
						get_current_blog_id(),
						'edit.php?post_type=' . self::MENU_ITEM_POST_TYPE
					)
				),
				sprintf(
					/* translators: Placehoder is a number of items. */
					_n(
						'%1$d Food Menu Item',
						'%1$d Food Menu Items',
						(int) $number_menu_items->publish,
						'jetpack'
					),
					number_format_i18n( $number_menu_items->publish )
				)
			);
		} else {
			$number_menu_items_published = sprintf(
				'<span>%1$s</span>',
				sprintf(
					/* translators: Placehoder is a number of items. */
					_n(
						'%1$d Food Menu Item',
						'%1$d Food Menu Items',
						(int) $number_menu_items->publish,
						'jetpack'
					),
					number_format_i18n( $number_menu_items->publish )
				)
			);
		}

		echo '<li class="nova-menu-count">' . $number_menu_items_published . '</li>'; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- we escape things above.
	}

	/**
	 * If the WP query for our menu items.
	 *
	 * @param WP_Query $query WP Query.
	 *
	 * @return bool
	 */
	public function is_menu_item_query( $query ) {
		if (
			( isset( $query->query_vars['taxonomy'] ) && self::MENU_TAX === $query->query_vars['taxonomy'] )
		||
			( isset( $query->query_vars['post_type'] ) && self::MENU_ITEM_POST_TYPE === $query->query_vars['post_type'] )
		) {
			return true;
		}

		return false;
	}

	/**
	 * Custom sort the menu item queries by menu order.
	 *
	 * @param WP_Query $query WP Query.
	 *
	 * @return void
	 */
	public function sort_menu_item_queries_by_menu_order( $query ) {
		if ( ! $this->is_menu_item_query( $query ) ) {
			return;
		}

		$query->query_vars['orderby'] = 'menu_order';
		$query->query_vars['order']   = 'ASC';

		// For now, just turn off paging so we can sort by taxonmy later
		// If we want paging in the future, we'll need to add the taxonomy sort here (or at least before the DB query is made)
		$query->query_vars['posts_per_page'] = -1;
	}

	/**
	 * Custom sort the menu item queries by menu taxonomies.
	 *
	 * @param WP_Post[] $posts Array of post objects.
	 * @param WP_Query  $query The WP_Query instance.
	 *
	 * @return WP_Post[]
	 */
	public function sort_menu_item_queries_by_menu_taxonomy( $posts, $query ) {
		if ( ! $posts ) {
			return $posts;
		}

		if ( ! $this->is_menu_item_query( $query ) ) {
			return $posts;
		}

		$grouped_by_term = array();

		foreach ( $posts as $post ) {
			$term = $this->get_menu_item_menu_leaf( $post->ID );
			if ( ! $term || is_wp_error( $term ) ) {
				$term_id = 0;
			} else {
				$term_id = $term->term_id;
			}

			if ( ! isset( $grouped_by_term[ "$term_id" ] ) ) {
				$grouped_by_term[ "$term_id" ] = array();
			}

			$grouped_by_term[ "$term_id" ][] = $post;
		}

		$term_order = get_option( 'nova_menu_order', array() );

		$return = array();
		foreach ( $term_order as $term_id ) {
			if ( isset( $grouped_by_term[ "$term_id" ] ) ) {
				$return = array_merge( $return, $grouped_by_term[ "$term_id" ] );
				unset( $grouped_by_term[ "$term_id" ] );
			}
		}

		foreach ( $grouped_by_term as $term_id => $posts ) {
			$return = array_merge( $return, $posts );
		}

		return $return;
	}

	/**
	 * Add new "Add many items" submenu, custom colunmns, and custom bulk actions.
	 *
	 * @return void
	 */
	public function add_admin_menus() {
		$hook = add_submenu_page(
			'edit.php?post_type=' . self::MENU_ITEM_POST_TYPE,
			__( 'Add Many Items', 'jetpack' ),
			__( 'Add Many Items', 'jetpack' ),
			'edit_pages',
			'add_many_nova_items',
			array( $this, 'add_many_new_items_page' )
		);

		add_action( "load-$hook", array( $this, 'add_many_new_items_page_load' ) );

		add_action( 'current_screen', array( $this, 'current_screen_load' ) );

		/*
		 * Adjust 'Add Many Items' submenu position
		 * We're making changes to the menu global, but no other choice unfortunately.
		 * phpcs:disable WordPress.WP.GlobalVariablesOverride.Prohibited
		 */
		if ( isset( $GLOBALS['submenu'][ 'edit.php?post_type=' . self::MENU_ITEM_POST_TYPE ] ) ) {
			$submenu_item = array_pop( $GLOBALS['submenu'][ 'edit.php?post_type=' . self::MENU_ITEM_POST_TYPE ] );
			$GLOBALS['submenu'][ 'edit.php?post_type=' . self::MENU_ITEM_POST_TYPE ][11] = $submenu_item;
			ksort( $GLOBALS['submenu'][ 'edit.php?post_type=' . self::MENU_ITEM_POST_TYPE ] );
		}
		// phpcs:enable WordPress.WP.GlobalVariablesOverride.Prohibited

		$this->setup_menu_item_columns();

		wp_register_script(
			'nova-menu-checkboxes',
			Assets::get_file_url_for_environment(
				'_inc/build/custom-post-types/js/menu-checkboxes.min.js',
				'modules/custom-post-types/js/menu-checkboxes.js'
			),
			array( 'jquery' ),
			$this->version,
			true
		);
	}

	/**
	 * Custom Nova Icon CSS
	 *
	 * @return void
	 */
	public function set_custom_font_icon() {
		?>
	<style type="text/css">
	#menu-posts-nova_menu_item .wp-menu-image:before {
		font-family: 'nova-font' !important;
		content: '\e603' !important;
	}
	</style>
		<?php
	}

	/**
	 * Load Nova menu management tools on the CPT admin screen.
	 *
	 * @return void
	 */
	public function current_screen_load() {
		$screen = get_current_screen();
		if ( 'edit-nova_menu_item' !== $screen->id ) {
			return;
		}

		$this->edit_menu_items_page_load();
		add_filter( 'admin_notices', array( $this, 'admin_notices' ) );
	}

	/* Edit Items List */

	/**
	 * Display a notice in wp-admin after items have been changed.
	 *
	 * @return void
	 */
	public function admin_notices() {
		if ( isset( $_GET['nova_reordered'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- this is only displaying a message with no dynamic values.
			printf(
				'<div class="updated"><p>%s</p></div>',
				/* translators: this is about a food menu */
				esc_html__( 'Menu Items re-ordered.', 'jetpack' )
			);
		}
	}

	/**
	 * Do not allow sorting by title.
	 *
	 * @param array $columns An array of sortable columns.
	 *
	 * @return array $columns.
	 */
	public function no_title_sorting( $columns ) {
		if ( isset( $columns['title'] ) ) {
			unset( $columns['title'] );
		}
		return $columns;
	}

	/**
	 * Set up custom columns for our Nova menu.
	 *
	 * @return void
	 */
	public function setup_menu_item_columns() {
		add_filter( sprintf( 'manage_edit-%s_sortable_columns', self::MENU_ITEM_POST_TYPE ), array( $this, 'no_title_sorting' ) );
		add_filter( sprintf( 'manage_%s_posts_columns', self::MENU_ITEM_POST_TYPE ), array( $this, 'menu_item_columns' ) );

		add_action( sprintf( 'manage_%s_posts_custom_column', self::MENU_ITEM_POST_TYPE ), array( $this, 'menu_item_column_callback' ), 10, 2 );
	}

	/**
	 * Add custom columns to the Nova menu item list.
	 *
	 * @param array $columns An array of columns.
	 *
	 * @return array $columns.
	 */
	public function menu_item_columns( $columns ) {
		unset( $columns['date'], $columns['likes'] );

		$columns['thumbnail'] = __( 'Thumbnail', 'jetpack' );
		$columns['labels']    = __( 'Labels', 'jetpack' );
		$columns['price']     = __( 'Price', 'jetpack' );
		$columns['order']     = __( 'Order', 'jetpack' );

		return $columns;
	}

	/**
	 * Display custom data in each new custom column we created.
	 *
	 * @param string $column  The name of the column to display.
	 * @param int    $post_id The current post ID.
	 *
	 * @return void
	 */
	public function menu_item_column_callback( $column, $post_id ) {
		$screen = get_current_screen();

		switch ( $column ) {
			case 'thumbnail':
				echo get_the_post_thumbnail( $post_id, array( 50, 50 ) );
				break;
			case 'labels':
				$this->list_admin_labels( $post_id );
				break;
			case 'price':
				$this->display_price( $post_id );
				break;
			case 'order':
				$url = admin_url( $screen->parent_file );

				$up_url = add_query_arg(
					array(
						'action'  => 'move-item-up',
						'post_id' => (int) $post_id,
					),
					wp_nonce_url( $url, 'nova_move_item_up_' . $post_id )
				);

				$down_url  = add_query_arg(
					array(
						'action'  => 'move-item-down',
						'post_id' => (int) $post_id,
					),
					wp_nonce_url( $url, 'nova_move_item_down_' . $post_id )
				);
				$menu_item = get_post( $post_id );
				$this->get_menu_by_post_id( $post_id );
				$term_id = $this->get_menu_by_post_id( $post_id );
				if ( $term_id ) {
					$term_id = $term_id->term_id;
				}
				?>
				<input type="hidden" class="menu-order-value" name="nova_order[<?php echo (int) $post_id; ?>]" value="<?php echo esc_attr( $menu_item->menu_order ); ?>" />
				<input type="hidden" class='nova-menu-term' name="nova_menu_term[<?php echo (int) $post_id; ?>]" value="<?php echo esc_attr( $term_id ); ?>">

				<span class="hide-if-js">
				&nbsp; &nbsp; &mdash; <a class="nova-move-item-up" data-post-id="<?php echo (int) $post_id; ?>" href="<?php echo esc_url( $up_url ); ?>">up</a>
				<br />
				&nbsp; &nbsp; &mdash; <a class="nova-move-item-down" data-post-id="<?php echo (int) $post_id; ?>" href="<?php echo esc_url( $down_url ); ?>">down</a>
				</span>
				<?php
				break;
		}
	}

	/**
	 * Get menu item by post ID.
	 *
	 * @param int $post_id Post ID.
	 *
	 * @return bool|WP_Term
	 */
	public function get_menu_by_post_id( $post_id = null ) {
		if ( ! $post_id ) {
			return false;
		}

		$terms = get_the_terms( $post_id, self::MENU_TAX );

		if ( ! is_array( $terms ) ) {
			return false;
		}

		return array_pop( $terms );
	}

	/**
	 * Fires on a menu edit page. We might have drag-n-drop reordered
	 */
	public function maybe_reorder_menu_items() {
		// make sure we clicked our button.
		if (
			empty( $_REQUEST['menu_reorder_submit'] )
			|| __( 'Save New Order', 'jetpack' ) !== $_REQUEST['menu_reorder_submit']
		) {
			return;
		}

		// make sure we have the nonce.
		if (
			empty( $_REQUEST['drag-drop-reorder'] )
			|| ! wp_verify_nonce( sanitize_key( $_REQUEST['drag-drop-reorder'] ), 'drag-drop-reorder' )
		) {
			return;
		}

		// make sure we have data to work with.
		if ( empty( $_REQUEST['nova_menu_term'] ) || empty( $_REQUEST['nova_order'] ) ) {
			return;
		}

		$term_pairs  = array_map( 'absint', $_REQUEST['nova_menu_term'] );
		$order_pairs = array_map( 'absint', $_REQUEST['nova_order'] );

		foreach ( $order_pairs as $id => $menu_order ) {
			$id = absint( $id );
			unset( $order_pairs[ $id ] );
			if ( $id < 0 ) {
				continue;
			}

			$post = get_post( $id );
			if ( ! $post ) {
				continue;
			}

			// save a write if the order hasn't changed
			if ( (int) $menu_order !== $post->menu_order ) {
				$args = array(
					'ID'         => $id,
					'menu_order' => $menu_order,
				);
				wp_update_post( $args );
			}

			// save a write if the term hasn't changed
			if ( (int) $term_pairs[ $id ] !== $this->get_menu_by_post_id( $id )->term_id ) {
				wp_set_object_terms( $id, $term_pairs[ $id ], self::MENU_TAX );
			}
		}

		$redirect = add_query_arg(
			array(
				'post_type'      => self::MENU_ITEM_POST_TYPE,
				'nova_reordered' => '1',
			),
			admin_url( 'edit.php' )
		);
		wp_safe_redirect( $redirect );
		exit;

	}

	/**
	 * Handle changes to menu items.
	 * (process actions, update data, enqueue necessary scripts).
	 *
	 * @return void
	 */
	public function edit_menu_items_page_load() {
		if ( isset( $_GET['action'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- we process the form and check nonces in handle_menu_item_actions.
			$this->handle_menu_item_actions();
		}

		$this->maybe_reorder_menu_items();

		wp_enqueue_script(
			'nova-drag-drop',
			Assets::get_file_url_for_environment(
				'_inc/build/custom-post-types/js/nova-drag-drop.min.js',
				'modules/custom-post-types/js/nova-drag-drop.js'
			),
			array( 'jquery-ui-sortable' ),
			$this->version,
			true
		);

		wp_localize_script(
			'nova-drag-drop',
			'_novaDragDrop',
			array(
				'nonce'       => wp_create_nonce( 'drag-drop-reorder' ),
				'nonceName'   => 'drag-drop-reorder',
				'reorder'     => __( 'Save New Order', 'jetpack' ),
				'reorderName' => 'menu_reorder_submit',
			)
		);
		add_action( 'the_post', array( $this, 'show_menu_titles_in_menu_item_list' ) );
	}

	/**
	 * Process actions to move menu items around.
	 *
	 * @return void
	 */
	public function handle_menu_item_actions() {
		if ( isset( $_GET['action'] ) ) {
			$action = (string) wp_unslash( $_GET['action'] ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended,WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- we check for nonces below, and check against specific strings in switch statement.
		} else {
			return;
		}

		switch ( $action ) {
			case 'move-item-up':
			case 'move-item-down':
				$reorder = false;

				if ( empty( $_GET['post_id'] ) ) {
					break;
				}

				$post_id = (int) $_GET['post_id'];

				$term = $this->get_menu_item_menu_leaf( $post_id );

				// Get all posts in that term.
				$query = new WP_Query(
					array(
						'taxonomy' => self::MENU_TAX,
						'term'     => $term->slug,
					)
				);

				$order = array();
				foreach ( $query->posts as $post ) {
					$order[] = $post->ID;
				}

				if ( 'move-item-up' === $action ) {
					check_admin_referer( 'nova_move_item_up_' . $post_id );

					$first_post_id = $order[0];
					if ( $post_id === $first_post_id ) {
						break;
					}

					foreach ( $order as $menu_order => $order_post_id ) {
						if ( $post_id !== $order_post_id ) {
							continue;
						}

						$swap_post_id             = $order[ $menu_order - 1 ];
						$order[ $menu_order - 1 ] = $post_id;
						$order[ $menu_order ]     = $swap_post_id;

						$reorder = true;
						break;
					}
				} else {
					check_admin_referer( 'nova_move_item_down_' . $post_id );

					$last_post_id = end( $order );
					if ( $post_id === $last_post_id ) {
						break;
					}

					foreach ( $order as $menu_order => $order_post_id ) {
						if ( $post_id !== $order_post_id ) {
							continue;
						}

						$swap_post_id             = $order[ $menu_order + 1 ];
						$order[ $menu_order + 1 ] = $post_id;
						$order[ $menu_order ]     = $swap_post_id;

						$reorder = true;
					}
				}

				if ( $reorder ) {
					foreach ( $order as $menu_order => $id ) {
						wp_update_post( compact( 'id', 'menu_order' ) );
					}
				}

				break;
			case 'move-menu-up':
			case 'move-menu-down':
				$reorder = false;

				if ( empty( $_GET['term_id'] ) ) {
					break;
				}

				$term_id = (int) $_GET['term_id'];

				$terms = $this->get_menus();

				$order = array();
				foreach ( $terms as $term ) {
					$order[] = $term->term_id;
				}

				if ( 'move-menu-up' === $action ) {
					check_admin_referer( 'nova_move_menu_up_' . $term_id );

					$first_term_id = $order[0];
					if ( $term_id === $first_term_id ) {
						break;
					}

					foreach ( $order as $menu_order => $order_term_id ) {
						if ( $term_id !== $order_term_id ) {
							continue;
						}

						$swap_term_id             = $order[ $menu_order - 1 ];
						$order[ $menu_order - 1 ] = $term_id;
						$order[ $menu_order ]     = $swap_term_id;

						$reorder = true;
						break;
					}
				} else {
					check_admin_referer( 'nova_move_menu_down_' . $term_id );

					$last_term_id = end( $order );
					if ( $term_id === $last_term_id ) {
						break;
					}

					foreach ( $order as $menu_order => $order_term_id ) {
						if ( $term_id !== $order_term_id ) {
							continue;
						}

						$swap_term_id             = $order[ $menu_order + 1 ];
						$order[ $menu_order + 1 ] = $term_id;
						$order[ $menu_order ]     = $swap_term_id;

						$reorder = true;
					}
				}

				if ( $reorder ) {
					update_option( 'nova_menu_order', $order );
				}

				break;
			default:
				return;
		}

		$redirect = add_query_arg(
			array(
				'post_type'      => self::MENU_ITEM_POST_TYPE,
				'nova_reordered' => '1',
			),
			admin_url( 'edit.php' )
		);
		wp_safe_redirect( $redirect );
		exit;
	}

	/**
	 * Add menu title rows to the list table
	 *
	 * @param WP_Post $post The Post object.
	 *
	 * @return void
	 */
	public function show_menu_titles_in_menu_item_list( $post ) {
		global $wp_list_table;

		static $last_term_id = false;

		$term = $this->get_menu_item_menu_leaf( $post->ID );

		$term_id = $term instanceof WP_Term ? $term->term_id : null;

		if ( false !== $last_term_id && $last_term_id === $term_id ) {
			return;
		}

		if ( $term_id === null ) {
			$last_term_id = null;
			$term_name    = '';
			$parent_count = 0;
		} else {
			$last_term_id = $term->term_id;
			$term_name    = $term->name;
			$parent_count = 0;
			$current_term = $term;
			while ( $current_term->parent ) {
				$parent_count++;
				$current_term = get_term( $current_term->parent, self::MENU_TAX );
			}
		}

		$non_order_column_count = $wp_list_table->get_column_count() - 1;

		$screen = get_current_screen();

		$url = admin_url( $screen->parent_file );

		$up_url = add_query_arg(
			array(
				'action'  => 'move-menu-up',
				'term_id' => (int) $term_id,
			),
			wp_nonce_url( $url, 'nova_move_menu_up_' . $term_id )
		);

		$down_url = add_query_arg(
			array(
				'action'  => 'move-menu-down',
				'term_id' => (int) $term_id,
			),
			wp_nonce_url( $url, 'nova_move_menu_down_' . $term_id )
		);

		?>
		<tr class="no-items menu-label-row" data-term_id="<?php echo esc_attr( $term_id ); ?>">
			<td class="colspanchange" colspan="<?php echo (int) $non_order_column_count; ?>">
				<h3>
				<?php
					echo str_repeat( ' &mdash; ', (int) $parent_count ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- nothing to escape here.

				if ( $term instanceof WP_Term ) {
					echo esc_html( sanitize_term_field( 'name', $term_name, $term_id, self::MENU_TAX, 'display' ) );
					edit_term_link( __( 'edit', 'jetpack' ), '<span class="edit-nova-section"><span class="dashicon dashicon-edit"></span>', '</span>', $term );

				} else {
					esc_html_e( 'Uncategorized', 'jetpack' );
				}
				?>
				</h3>
			</td>
			<td>
				<?php if ( $term instanceof WP_Term ) { ?>
				<a class="nova-move-menu-up" title="<?php esc_attr_e( 'Move menu section up', 'jetpack' ); ?>" href="<?php echo esc_url( $up_url ); ?>"><?php echo esc_html_x( 'UP', 'indicates movement (up or down)', 'jetpack' ); ?></a>
				<br />
				<a class="nova-move-menu-down" title="<?php esc_attr_e( 'Move menu section down', 'jetpack' ); ?>" href="<?php echo esc_url( $down_url ); ?>"><?php echo esc_html_x( 'DOWN', 'indicates movement (up or down)', 'jetpack' ); ?></a>
				<?php } ?>
			</td>
		</tr>
		<?php
	}

	/* Edit Many Items */

	/**
	 * Handle form submissions that aim to add many menu items at once.
	 * (process posted data and enqueue necessary script).
	 *
	 * @return void
	 */
	public function add_many_new_items_page_load() {
		if (
			isset( $_SERVER['REQUEST_METHOD'] )
			&& 'POST' === strtoupper( sanitize_text_field( wp_unslash( $_SERVER['REQUEST_METHOD'] ) ) )
		) {
			$this->process_form_request();
			exit;
		}

		$this->enqueue_many_items_scripts();
	}

	/**
	 * Enqueue script to create many items at once.
	 *
	 * @return void
	 */
	public function enqueue_many_items_scripts() {
		wp_enqueue_script(
			'nova-many-items',
			Assets::get_file_url_for_environment(
				'_inc/build/custom-post-types/js/many-items.min.js',
				'modules/custom-post-types/js/many-items.js'
			),
			array( 'jquery' ),
			$this->version,
			true
		);
	}

	/**
	 * Process form request to create many items at once.
	 *
	 * @return void
	 */
	public function process_form_request() {
		if ( ! isset( $_POST['nova_title'] ) || ! is_array( $_POST['nova_title'] ) ) {
			return;
		}

		$is_ajax = ! empty( $_POST['ajax'] );

		if ( $is_ajax ) {
			check_ajax_referer( 'nova_many_items' );
		} else {
			check_admin_referer( 'nova_many_items' );
		}

		/*
		 * $_POST is already slashed
		 * phpcs:disable WordPress.Security.ValidatedSanitizedInput.MissingUnslash
		 */
		foreach ( array_keys( $_POST['nova_title'] ) as $key ) : // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- we sanitize below.
			$post_details = array(
				'post_status'  => 'publish',
				'post_type'    => self::MENU_ITEM_POST_TYPE,
				'post_content' => ! empty( $_POST['nova_content'] ) && ! empty( $_POST['nova_content'][ $key ] )
					? sanitize_text_field( $_POST['nova_content'][ $key ] )
					: '',
				'post_title'   => isset( $_POST['nova_title'][ $key ] )
					? sanitize_title( $_POST['nova_title'][ $key ] )
					: '',
				'tax_input'    => array(
					self::MENU_ITEM_LABEL_TAX => isset( $_POST['nova_labels'][ $key ] )
						? sanitize_meta( self::MENU_ITEM_LABEL_TAX, $_POST['nova_labels'][ $key ], 'term' )
						: null,
					self::MENU_TAX            => isset( $_POST['nova_menu_tax'] )
						? sanitize_meta( self::MENU_TAX, $_POST['nova_menu_tax'], 'term' )
						: null,
				),
			);

			$post_id = wp_insert_post( $post_details );
			if ( ! $post_id || is_wp_error( $post_id ) ) {
				continue;
			}

			$this->set_price(
				$post_id,
				isset( $_POST['nova_price'][ $key ] )
					? sanitize_meta( 'nova_price', $_POST['nova_price'][ $key ], 'post' )
					: ''
			);
			// phpcs:enable WordPress.Security.ValidatedSanitizedInput.MissingUnslash

			if ( $is_ajax ) :
				$post            = get_post( $post_id );
				$GLOBALS['post'] = $post; // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited
				setup_postdata( $post );

				?>
			<td><?php the_title(); ?></td>
			<td class="nova-price"><?php $this->display_price(); ?></td>
			<td><?php $this->list_labels( $post_id ); ?></td>
			<td><?php the_content(); ?></td>
				<?php
			endif;

		endforeach;

		if ( $is_ajax ) {
			exit;
		}

		wp_safe_redirect( admin_url( 'edit.php?post_type=' . self::MENU_ITEM_POST_TYPE ) );
		exit;
	}

	/**
	 * Admin page contents for adding many menu items at once.
	 *
	 * @return void
	 */
	public function add_many_new_items_page() {
		?>
	<div class="wrap">
		<h2><?php esc_html_e( 'Add Many Items', 'jetpack' ); ?></h2>

		<p>
		<?php
		echo wp_kses(
			__( 'Use the <kbd>TAB</kbd> key on your keyboard to move between colums and the <kbd>ENTER</kbd> or <kbd>RETURN</kbd> key to save each row and move on to the next.', 'jetpack' ),
			array(
				'kbd' => array(),
			)
		);
		?>
		</p>

		<form method="post" action="" enctype="multipart/form-data">
			<p>
				<h3><?php esc_html_e( 'Add to section:', 'jetpack' ); ?>
				<?php
				wp_dropdown_categories(
					array(
						'id'           => 'nova-menu-tax',
						'name'         => 'nova_menu_tax',
						'taxonomy'     => self::MENU_TAX,
						'hide_empty'   => false,
						'hierarchical' => true,
					)
				);
				?>
			</h3></p>

			<table class="many-items-table wp-list-table widefat">
				<thead>
					<tr>
						<th scope="col"><?php esc_html_e( 'Name', 'jetpack' ); ?></th>
						<th scope="col" class="nova-price"><?php esc_html_e( 'Price', 'jetpack' ); ?></th>
						<th scope="col">
							<?php
							echo wp_kses(
								__( 'Labels: <small>spicy, favorite, etc. <em>Separate Labels with commas</em></small>', 'jetpack' ),
								array(
									'small' => array(),
									'em'    => array(),
								)
							);
							?>
						</th>
						<th scope="col"><?php esc_html_e( 'Description', 'jetpack' ); ?></th>
					</tr>
				</thead>
				<tbody>
					<tr>
						<td><input type="text" name="nova_title[]" aria-required="true" /></td>
						<td class="nova-price"><input type="text" name="nova_price[]" /></td>
						<td><input type="text" name="nova_labels[]" /></td>
						<td><textarea name="nova_content[]" cols="20" rows="1"></textarea>
					</tr>
				</tbody>
				<tbody>
					<tr>
						<td><input type="text" name="nova_title[]" aria-required="true" /></td>
						<td class="nova-price"><input type="text" name="nova_price[]" /></td>
						<td><input type="text" name="nova_labels[]" /></td>
						<td><textarea name="nova_content[]" cols="20" rows="1"></textarea>
					</tr>
				</tbody>
				<tfoot>
					<tr>
						<th><a class="button button-secondary nova-new-row"><span class="dashicon dashicon-plus"></span> <?php esc_html_e( 'New Row', 'jetpack' ); ?></a></th>
						<th class="nova-price"></th>
						<th></th>
						<th></th>
					</tr>
				</tfoot>
			</table>

			<p class="submit">
				<input type="submit" class="button-primary" value="<?php esc_attr_e( 'Add These New Menu Items', 'jetpack' ); ?>" />
				<?php wp_nonce_field( 'nova_many_items' ); ?>
			</p>
		</form>
	</div>
		<?php
	}

	/* Edit One Item */

	/**
	 * Create admin meta box to save price for a menu item,
	 * and add script to add extra checkboxes to the UI.
	 *
	 * @return void
	 */
	public function register_menu_item_meta_boxes() {
		wp_enqueue_script( 'nova-menu-checkboxes' );

		add_meta_box(
			'menu_item_price',
			__( 'Price', 'jetpack' ),
			array( $this, 'menu_item_price_meta_box' ),
			null,
			'side',
			'high'
		);
	}

	/**
	 * Meta box to edit the price of a menu item.
	 *
	 * @param WP_Post $post The post object.
	 *
	 * @return void
	 */
	public function menu_item_price_meta_box( $post ) {
		printf(
			'<label for="nova-price-%1$s" class="screen-reader-text">%2$s</label><input type="text" id="nova-price-%1$s" class="widefat" name="nova_price[%1$s]" value="%3$s" />',
			(int) $post->ID,
			esc_html__( 'Price', 'jetpack' ),
			esc_attr( $this->get_price( (int) $post->ID ) )
		);
	}

	/**
	 * Save the price of a menu item.
	 *
	 * @param int $post_id Post ID.
	 */
	public function add_post_meta( $post_id ) {
		if ( ! isset( $_POST['nova_price'][ $post_id ] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Missing -- nonce handling happens via core, since we hook into wp_insert_post.
			return;
		}

		$this->set_price(
			$post_id,
			sanitize_meta( 'nova_price', wp_unslash( $_POST['nova_price'][ $post_id ] ), 'post' ) // phpcs:ignore WordPress.Security.NonceVerification.Missing -- nonce handling happens via core, since we hook into wp_insert_post.
		);
	}

	/* Data */

	/**
	 * Get ordered array of menu items.
	 *
	 * @param array $args Optional argumments.
	 *
	 * @return array
	 */
	public function get_menus( $args = array() ) {
		$args = wp_parse_args(
			$args,
			array(
				'hide_empty' => false,
			)
		);

		$terms = get_terms( self::MENU_TAX, $args );
		if ( ! $terms || is_wp_error( $terms ) ) {
			return array();
		}

		$terms_by_id = array();
		foreach ( $terms as $term ) {
			$terms_by_id[ "{$term->term_id}" ] = $term;
		}

		$term_order = get_option( 'nova_menu_order', array() );

		$return = array();
		foreach ( $term_order as $term_id ) {
			if ( isset( $terms_by_id[ "$term_id" ] ) ) {
				$return[] = $terms_by_id[ "$term_id" ];
				unset( $terms_by_id[ "$term_id" ] );
			}
		}

		foreach ( $terms_by_id as $term_id => $term ) {
			$return[] = $term;
		}

		return $return;
	}

	/**
	 * Get first menu taxonomy "leaf".
	 *
	 * @param int $post_id Post ID.
	 *
	 * @return bool|WP_Term|WP_Error|null
	 */
	public function get_menu_item_menu_leaf( $post_id ) {
		// Get first menu taxonomy "leaf".
		$term_ids = wp_get_object_terms( $post_id, self::MENU_TAX, array( 'fields' => 'ids' ) );

		foreach ( $term_ids as $term_id ) {
			$children = get_term_children( $term_id, self::MENU_TAX );
			if ( ! $children ) {
				break;
			}
		}

		if ( ! isset( $term_id ) ) {
			return false;
		}

		return get_term( $term_id, self::MENU_TAX );

	}

	/**
	 * Get a list of the labels linked to a menu item.
	 *
	 * @param int $post_id Post ID.
	 *
	 * @return void
	 */
	public function list_labels( $post_id = 0 ) {
		$post = get_post( $post_id );
		echo get_the_term_list( $post->ID, self::MENU_ITEM_LABEL_TAX, '', _x( ', ', 'Nova label separator', 'jetpack' ), '' );
	}

	/**
	 * Get a list of the labels linked to a menu item, with links to manage them.
	 *
	 * @param int $post_id Post ID.
	 *
	 * @return void
	 */
	public function list_admin_labels( $post_id = 0 ) {
		$post   = get_post( $post_id );
		$labels = get_the_terms( $post->ID, self::MENU_ITEM_LABEL_TAX );
		if ( ! empty( $labels ) ) {
			$out = array();
			foreach ( $labels as $label ) {
				$out[] = sprintf(
					'<a href="%s">%s</a>',
					esc_url(
						add_query_arg(
							array(
								'post_type' => self::MENU_ITEM_POST_TYPE,
								'taxonomy'  => self::MENU_ITEM_LABEL_TAX,
								'term'      => $label->slug,
							),
							'edit.php'
						)
					),
					esc_html(
						sanitize_term_field( 'name', $label->name, $label->term_id, self::MENU_ITEM_LABEL_TAX, 'display' )
					)
				);
			}

			echo join( _x( ', ', 'Nova label separator', 'jetpack' ), $out ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- we build $out ourselves and escape things there.
		} else {
			esc_html_e( 'No Labels', 'jetpack' );
		}
	}

	/**
	 * Update post meta with the price defined in meta box.
	 *
	 * @param int    $post_id Post ID.
	 * @param string $price   Price.
	 *
	 * @return int|bool
	 */
	public function set_price( $post_id = 0, $price = '' ) {
		return update_post_meta( $post_id, 'nova_price', $price );
	}

	/**
	 * Get the price of a menu item.
	 *
	 * @param int $post_id Post ID.
	 *
	 * @return bool|string
	 */
	public function get_price( $post_id = 0 ) {
		return get_post_meta( $post_id, 'nova_price', true );
	}

	/**
	 * Echo the price of a menu item.
	 *
	 * @param int $post_id Post ID.
	 *
	 * @return void
	 */
	public function display_price( $post_id = 0 ) {
		echo esc_html( $this->get_price( $post_id ) );
	}

	/* Menu Item Loop Markup */

	/**
	 * Get markup for a menu item.
	 * Note: Does not support nested loops.
	 *
	 * @param null|string $field The field to get the value for.
	 *
	 * @return array
	 */
	public function get_menu_item_loop_markup( $field = null ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
		return $this->menu_item_loop_markup;
	}

	/**
	 * Sets up the loop markup.
	 * Attached to the 'template_include' *filter*,
	 * which fires only during a real blog view (not in admin, feeds, etc.)
	 *
	 * @param string $template Template File.
	 *
	 * @return string Template File.  VERY Important.
	 */
	public function setup_menu_item_loop_markup__in_filter( $template ) {
		add_action( 'loop_start', array( $this, 'start_menu_item_loop' ) );

		return $template;
	}

	/**
	 * If the Query is a Menu Item Query, start outputing the Menu Item Loop Marku
	 * Attached to the 'loop_start' action.
	 *
	 * @param WP_Query $query Post query.
	 *
	 * @return void
	 */
	public function start_menu_item_loop( $query ) {
		if ( ! $this->is_menu_item_query( $query ) ) {
			return;
		}

		$this->menu_item_loop_last_term_id = false;
		$this->menu_item_loop_current_term = false;

		add_action( 'the_post', array( $this, 'menu_item_loop_each_post' ) );
		add_action( 'loop_end', array( $this, 'stop_menu_item_loop' ) );
	}

	/**
	 * Outputs the Menu Item Loop Marku
	 * Attached to the 'the_post' action.
	 *
	 * @param WP_Post $post Post object.
	 *
	 * @return void
	 */
	public function menu_item_loop_each_post( $post ) {
		$this->menu_item_loop_current_term = $this->get_menu_item_menu_leaf( $post->ID );

		if ( false === $this->menu_item_loop_last_term_id ) {
			// We're at the very beginning of the loop

			$this->menu_item_loop_open_element( 'menu' ); // Start a new menu section
			$this->menu_item_loop_header(); // Output the menu's header
		} elseif ( $this->menu_item_loop_last_term_id !== $this->menu_item_loop_current_term->term_id ) {
			// We're not at the very beginning but still need to start a new menu section.  End the previous menu section first.

			$this->menu_item_loop_close_element( 'menu' ); // End the previous menu section
			$this->menu_item_loop_open_element( 'menu' ); // Start a new menu section
			$this->menu_item_loop_header(); // Output the menu's header
		}

		$this->menu_item_loop_last_term_id = $this->menu_item_loop_current_term->term_id;
	}

	/**
	 * If the Query is a Menu Item Query, stop outputing the Menu Item Loop Marku
	 * Attached to the 'loop_end' action.
	 *
	 * @param WP_Query $query Post query.
	 *
	 * @return void
	 */
	public function stop_menu_item_loop( $query ) {
		if ( ! $this->is_menu_item_query( $query ) ) {
			return;
		}

		remove_action( 'the_post', array( $this, 'menu_item_loop_each_post' ) );
		remove_action( 'loop_start', array( $this, 'start_menu_item_loop' ) );
		remove_action( 'loop_end', array( $this, 'stop_menu_item_loop' ) );

		$this->menu_item_loop_close_element( 'menu' ); // End the last menu section
	}

	/**
	 * Outputs the Menu Group Header
	 *
	 * @return void
	 */
	public function menu_item_loop_header() {
		$this->menu_item_loop_open_element( 'menu_header' );
			$this->menu_item_loop_open_element( 'menu_title' );
				echo esc_html( $this->menu_item_loop_current_term->name ); // @todo tax filter
			$this->menu_item_loop_close_element( 'menu_title' );
		if ( $this->menu_item_loop_current_term->description ) :
			$this->menu_item_loop_open_element( 'menu_description' );
				echo esc_html( $this->menu_item_loop_current_term->description ); // @todo kses, tax filter
			$this->menu_item_loop_close_element( 'menu_description' );
		endif;
		$this->menu_item_loop_close_element( 'menu_header' );
	}

	/**
	 * Outputs a Menu Item Markup element opening tag
	 *
	 * @param string $field - Menu Item Markup settings field.
	 *
	 * @return void
	 */
	public function menu_item_loop_open_element( $field ) {
		$markup = $this->get_menu_item_loop_markup();
		/**
		 * Filter a menu item's element opening tag.
		 *
		 * @module custom-content-types
		 *
		 * @since 4.4.0
		 *
		 * @param string       $tag    Menu item's element opening tag.
		 * @param string       $field  Menu Item Markup settings field.
		 * @param array        $markup Array of markup elements for the menu item.
		 * @param false|object $term   Taxonomy term for current menu item.
		 */
		echo apply_filters( // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- it's escaped in menu_item_loop_class.
			'jetpack_nova_menu_item_loop_open_element',
			'<' . tag_escape( $markup[ "{$field}_tag" ] ) . $this->menu_item_loop_class( $markup[ "{$field}_class" ] ) . ">\n",
			$field,
			$markup,
			$this->menu_item_loop_current_term
		);
	}

	/**
	 * Outputs a Menu Item Markup element closing tag
	 *
	 * @param string $field - Menu Item Markup settings field.
	 *
	 * @return void
	 */
	public function menu_item_loop_close_element( $field ) {
		$markup = $this->get_menu_item_loop_markup();
		/**
		 * Filter a menu item's element closing tag.
		 *
		 * @module custom-content-types
		 *
		 * @since 4.4.0
		 *
		 * @param string       $tag    Menu item's element closing tag.
		 * @param string       $field  Menu Item Markup settings field.
		 * @param array        $markup Array of markup elements for the menu item.
		 * @param false|object $term   Taxonomy term for current menu item.
		 */
		echo apply_filters( // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- tag_escape is used.
			'jetpack_nova_menu_item_loop_close_element',
			'</' . tag_escape( $markup[ "{$field}_tag" ] ) . ">\n",
			$field,
			$markup,
			$this->menu_item_loop_current_term
		);
	}

	/**
	 * Returns a Menu Item Markup element's class attribute.
	 *
	 * @param  string $class Class name.
	 *
	 * @return string HTML class attribute with leading whitespace.
	 */
	public function menu_item_loop_class( $class ) {
		if ( ! $class ) {
			return '';
		}

		/**
		 * Filter a menu Item Markup element's class attribute.
		 *
		 * @module custom-content-types
		 *
		 * @since 4.4.0
		 *
		 * @param string       $tag    Menu Item Markup element's class attribute.
		 * @param string       $class  Menu Item Class name.
		 * @param false|object $term   Taxonomy term for current menu item.
		 */
		return apply_filters(
			'jetpack_nova_menu_item_loop_class',
			' class="' . esc_attr( $class ) . '"',
			$class,
			$this->menu_item_loop_current_term
		);
	}
}

add_action( 'init', array( 'Nova_Restaurant', 'init' ) );
