public static function register_post_types() {
		if ( ! is_blog_installed() || post_type_exists( 'product' ) ) {
			return;
		}

		do_action( 'woocommerce_register_post_type' );

		$permalinks = wc_get_permalink_structure();
		$supports   = array( 'title', 'editor', 'excerpt', 'thumbnail', 'custom-fields', 'publicize', 'wpcom-markdown' );

		if ( 'yes' === get_option( 'woocommerce_enable_reviews', 'yes' ) ) {
			$supports[] = 'comments';
		}

		$shop_page_id = wc_get_page_id( 'shop' );

		if ( current_theme_supports( 'woocommerce' ) ) {
			$has_archive = $shop_page_id && get_post( $shop_page_id ) ? urldecode( get_page_uri( $shop_page_id ) ) : 'shop';
		} else {
			$has_archive = false;
		}

		// If theme support changes, we may need to flush permalinks since some are changed based on this flag.
		$theme_support = current_theme_supports( 'woocommerce' ) ? 'yes' : 'no';
		if ( get_option( 'current_theme_supports_woocommerce' ) !== $theme_support && update_option( 'current_theme_supports_woocommerce', $theme_support ) ) {
			update_option( 'woocommerce_queue_flush_rewrite_rules', 'yes' );
		}

		register_post_type(
			'product',
			apply_filters(
				'woocommerce_register_post_type_product',
				array(
					'labels'              => array(
						'name'                  => __( 'Products', 'woocommerce' ),
						'singular_name'         => __( 'Product', 'woocommerce' ),
						'all_items'             => __( 'All Products', 'woocommerce' ),
						'menu_name'             => _x( 'Products', 'Admin menu name', 'woocommerce' ),
						'add_new'               => __( 'Add New', 'woocommerce' ),
						'add_new_item'          => __( 'Add new product', 'woocommerce' ),
						'edit'                  => __( 'Edit', 'woocommerce' ),
						'edit_item'             => __( 'Edit product', 'woocommerce' ),
						'new_item'              => __( 'New product', 'woocommerce' ),
						'view_item'             => __( 'View product', 'woocommerce' ),
						'view_items'            => __( 'View products', 'woocommerce' ),
						'search_items'          => __( 'Search products', 'woocommerce' ),
						'not_found'             => __( 'No products found', 'woocommerce' ),
						'not_found_in_trash'    => __( 'No products found in trash', 'woocommerce' ),
						'parent'                => __( 'Parent product', 'woocommerce' ),
						'featured_image'        => __( 'Product image', 'woocommerce' ),
						'set_featured_image'    => __( 'Set product image', 'woocommerce' ),
						'remove_featured_image' => __( 'Remove product image', 'woocommerce' ),
						'use_featured_image'    => __( 'Use as product image', 'woocommerce' ),
						'insert_into_item'      => __( 'Insert into product', 'woocommerce' ),
						'uploaded_to_this_item' => __( 'Uploaded to this product', 'woocommerce' ),
						'filter_items_list'     => __( 'Filter products', 'woocommerce' ),
						'items_list_navigation' => __( 'Products navigation', 'woocommerce' ),
						'items_list'            => __( 'Products list', 'woocommerce' ),
					),
					'description'         => __( 'This is where you can add new products to your store.', 'woocommerce' ),
					'public'              => true,
					'show_ui'             => true,
					'capability_type'     => 'product',
					'map_meta_cap'        => true,
					'publicly_queryable'  => true,
					'exclude_from_search' => false,
					'hierarchical'        => false, // Hierarchical causes memory issues - WP loads all records!
					'rewrite'             => $permalinks['product_rewrite_slug'] ? array(
						'slug'       => $permalinks['product_rewrite_slug'],
						'with_front' => false,
						'feeds'      => true,
					) : false,
					'query_var'           => true,
					'supports'            => $supports,
					'has_archive'         => $has_archive,
					'show_in_nav_menus'   => true,
					'show_in_rest'        => true,
				)
			)
		);

		register_post_type(
			'product_variation',
			apply_filters(
				'woocommerce_register_post_type_product_variation',
				array(
					'label'           => __( 'Variations', 'woocommerce' ),
					'public'          => false,
					'hierarchical'    => false,
					'supports'        => false,
					'capability_type' => 'product',
					'rewrite'         => false,
				)
			)
		);

		wc_register_order_type(
			'shop_order',
			apply_filters(
				'woocommerce_register_post_type_shop_order',
				array(
					'labels'              => array(
						'name'                  => __( 'Orders', 'woocommerce' ),
						'singular_name'         => _x( 'Order', 'shop_order post type singular name', 'woocommerce' ),
						'add_new'               => __( 'Add order', 'woocommerce' ),
						'add_new_item'          => __( 'Add new order', 'woocommerce' ),
						'edit'                  => __( 'Edit', 'woocommerce' ),
						'edit_item'             => __( 'Edit order', 'woocommerce' ),
						'new_item'              => __( 'New order', 'woocommerce' ),
						'view_item'             => __( 'View order', 'woocommerce' ),
						'search_items'          => __( 'Search orders', 'woocommerce' ),
						'not_found'             => __( 'No orders found', 'woocommerce' ),
						'not_found_in_trash'    => __( 'No orders found in trash', 'woocommerce' ),
						'parent'                => __( 'Parent orders', 'woocommerce' ),
						'menu_name'             => _x( 'Orders', 'Admin menu name', 'woocommerce' ),
						'filter_items_list'     => __( 'Filter orders', 'woocommerce' ),
						'items_list_navigation' => __( 'Orders navigation', 'woocommerce' ),
						'items_list'            => __( 'Orders list', 'woocommerce' ),
					),
					'description'         => __( 'This is where store orders are stored.', 'woocommerce' ),
					'public'              => false,
					'show_ui'             => true,
					'capability_type'     => 'shop_order',
					'map_meta_cap'        => true,
					'publicly_queryable'  => false,
					'exclude_from_search' => true,
					'show_in_menu'        => current_user_can( 'manage_woocommerce' ) ? 'woocommerce' : true,
					'hierarchical'        => false,
					'show_in_nav_menus'   => false,
					'rewrite'             => false,
					'query_var'           => false,
					'supports'            => array( 'title', 'comments', 'custom-fields' ),
					'has_archive'         => false,
				)
			)
		);

		wc_register_order_type(
			'shop_order_refund',
			apply_filters(
				'woocommerce_register_post_type_shop_order_refund',
				array(
					'label'                            => __( 'Refunds', 'woocommerce' ),
					'capability_type'                  => 'shop_order',
					'public'                           => false,
					'hierarchical'                     => false,
					'supports'                         => false,
					'exclude_from_orders_screen'       => false,
					'add_order_meta_boxes'             => false,
					'exclude_from_order_count'         => true,
					'exclude_from_order_views'         => false,
					'exclude_from_order_reports'       => false,
					'exclude_from_order_sales_reports' => true,
					'class_name'                       => 'WC_Order_Refund',
					'rewrite'                          => false,
				)
			)
		);

		if ( 'yes' === get_option( 'woocommerce_enable_coupons' ) ) {
			register_post_type(
				'shop_coupon',
				apply_filters(
					'woocommerce_register_post_type_shop_coupon',
					array(
						'labels'              => array(
							'name'                  => __( 'Coupons', 'woocommerce' ),
							'singular_name'         => __( 'Coupon', 'woocommerce' ),
							'menu_name'             => _x( 'Coupons', 'Admin menu name', 'woocommerce' ),
							'add_new'               => __( 'Add coupon', 'woocommerce' ),
							'add_new_item'          => __( 'Add new coupon', 'woocommerce' ),
							'edit'                  => __( 'Edit', 'woocommerce' ),
							'edit_item'             => __( 'Edit coupon', 'woocommerce' ),
							'new_item'              => __( 'New coupon', 'woocommerce' ),
							'view_item'             => __( 'View coupon', 'woocommerce' ),
							'search_items'          => __( 'Search coupons', 'woocommerce' ),
							'not_found'             => __( 'No coupons found', 'woocommerce' ),
							'not_found_in_trash'    => __( 'No coupons found in trash', 'woocommerce' ),
							'parent'                => __( 'Parent coupon', 'woocommerce' ),
							'filter_items_list'     => __( 'Filter coupons', 'woocommerce' ),
							'items_list_navigation' => __( 'Coupons navigation', 'woocommerce' ),
							'items_list'            => __( 'Coupons list', 'woocommerce' ),
						),
						'description'         => __( 'This is where you can add new coupons that customers can use in your store.', 'woocommerce' ),
						'public'              => false,
						'show_ui'             => true,
						'capability_type'     => 'shop_coupon',
						'map_meta_cap'        => true,
						'publicly_queryable'  => false,
						'exclude_from_search' => true,
						'show_in_menu'        => current_user_can( 'manage_woocommerce' ) ? 'woocommerce' : true,
						'hierarchical'        => false,
						'rewrite'             => false,
						'query_var'           => false,
						'supports'            => array( 'title' ),
						'show_in_nav_menus'   => false,
						'show_in_admin_bar'   => true,
					)
				)
			);
		}

		do_action( 'woocommerce_after_register_post_type' );
	}