Add WooCommerce endpoints to Yoast SEO breadcrumbs

yoast-seo-breadcrumbs-for-woocommerce.php

<?php
/**
 * Add WooCommerce endpoints to Yoast SEO breadcrumbs
 *
 * @link              https://gist.github.com/smeric/b544f154ea752e47d0427f3e1ae901b5
 * @version           1.0.1
 * @package           yoast_seo_breadcrumbs_for_woocommerce_endpoints
 *
 * @wordpress-plugin
 * Plugin Name:       Yoast SEO breadcrumbs addon
 * Plugin URI:        https://gist.github.com/smeric/b544f154ea752e47d0427f3e1ae901b5
 * Description:       Add WooCommerce endpoints to Yoast SEO breadcrumbs.
 * Version:           1.0.1
 * Author:            Sébastien Méric <sebastien.meric@gmail.com>
 * Author URI:        http://www.sebastien-meric.com/
 * License:           GPL-2.0+
 * License URI:       http://www.gnu.org/licenses/gpl-2.0.txt
 * Text Domain:       yoast_seo_breadcrumbs_for_woocommerce_endpoints
 * Domain Path:       /languages
 * 
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU
 * General Public License as published by the Free Software Foundation; either version 2 of the License,
 * or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * You should have received a copy of the GNU General Public License along with this program; if not, write
 * to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 **/

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

/**
 * Add WooCommerce endpoints to Yoast SEO breadcrumbs.
 *
 * @since      1.0.0
 * @package    yoast_seo_breadcrumbs_for_woocommerce_endpoints
 * @author     Sébastien Méric <sebastien.meric@gmail.com>
 **/
add_filter( 'wpseo_breadcrumb_links', 'my_prefix_override_yoast_breadcrumb_trail' );
function my_prefix_override_yoast_breadcrumb_trail( $links ) {
	if ( function_exists( 'is_wc_endpoint_url' ) && is_wc_endpoint_url() ) {
		// Remove the last element : "My account" unlinked title...
		array_pop( $links );
		// ... And replace it with the linked one
		$links[] = array(
			'url'  => get_permalink( get_option( 'woocommerce_myaccount_page_id' ) ),
			'text' => get_the_title( get_option( 'woocommerce_myaccount_page_id' ) ),
		);

		// Get endpoints list
		$endpoints = WC()->query->get_query_vars();

		// For each endpoint, add its title at breadcrumbs end
		foreach ( $endpoints as $endpoint => $translated_endpoint ) {
			if ( is_wc_endpoint_url( $endpoint ) ) {
				// Special case for addresses editon pages
				if ( $endpoint === 'edit-address' ) {
					global $wp;

					$load_address = isset( $wp->query_vars['edit-address'] ) ? wc_edit_address_i18n( sanitize_title( $wp->query_vars['edit-address'] ), true ) : 'billing';

					if ( 'billing' === $load_address ) {
						// For billing address editon page
						$links[] = array(
							'url'  => wc_get_endpoint_url( $endpoint ),
							'text' => WC()->query->get_endpoint_title( $endpoint ),
						);
						$links[] = array(
							'url'  => '',
							'text' => __( 'Billing Address', 'woocommerce' ),
						);
						break;
					}
					elseif ( 'shipping' === $load_address ) {
						// For shipping address editon page
						$links[] = array(
							'url'  => wc_get_endpoint_url( $endpoint ),
							'text' => WC()->query->get_endpoint_title( $endpoint ),
						);
						$links[] = array(
							'url'  => '',
							'text' => __( 'Shipping Address', 'woocommerce' ),
						);
						break;
					}
					else {
						// For addresses editon page "menu"
						$links[] = array(
							'url'  => '',
							'text' => WC()->query->get_endpoint_title( $endpoint ),
						);
						break;
					}
				}
				// Default case : add current endpoint title with no link at breadcrumbs end
				else {
					$links[] = array(
						'url'  => '',
						'text' => WC()->query->get_endpoint_title( $endpoint ),
					);
					break;
				}
			}
		}
	}
	// We are on a "my account" page but not on a classical registered endpoint
	elseif ( is_account_page() && ! is_wc_endpoint_url() ) {
		// Deal with Iconic way of doing things...
		// See https://iconicwp.com/products/woocommerce-account-pages/
		if ( class_exists( 'Iconic_WAP_Pages' ) && $endpoint = Iconic_WAP_Pages::is_endpoint() ) {
			$links[] = array(
				'url'  => '',
				'text' => get_the_title( $endpoint ),
			);
		}
		// We are on the root
		else {
			$links[] = array(
				'url'  => '',
				'text' => __( 'Dashboard', 'woocommerce' ),
			);
		}
	}

	return $links;
}

/**
 * Register unregistered endpoints...
 *
 * @since      1.0.1
 * @package    yoast_seo_breadcrumbs_for_woocommerce_endpoints
 * @author     Sébastien Méric <sebastien.meric@gmail.com>
 **/
add_filter( 'woocommerce_get_query_vars', 'my_prefix_register_specific_endpoints' );
function my_prefix_register_specific_endpoints( $vars ) {
	/*
	 * WooCommerce Smart Coupon
	 */
	// Get the endpoint slug as defined in WooCommerce > Settings > Advanced
	$smart_coupon_endpoint = get_option( 'woocommerce_myaccount_wc_sc_dashboard_endpoint', 'wc-smart-coupons' );
	// Add it to query_vars so the page responds to is_wc_endpoint_url function
	$vars[$smart_coupon_endpoint] = $smart_coupon_endpoint;
	// Give this endpoint a title
	add_filter( 'woocommerce_endpoint_' . $smart_coupon_endpoint . '_title', function(){
		return __( 'Coupons', 'yoast_seo_breadcrumbs_for_woocommerce_endpoints' );
	});

	return $vars;

}

?>

@smeric thanks for sharing this code. It is very helpful. I sent you an email, let me know if you got it.
Bests!