Allow customers to confirm an order in my account in WooCommerce

Allow customers to confirm an order in my account in WooCommerce on child sites.

Snippet Type

Execute on Child Sites

Snippet

add_filter( 'woocommerce_my_account_my_orders_actions', 'wc_confirm_order_my_account_orders_actions', 9999, 2 );
   
function wc_confirm_order_my_account_orders_actions( $actions, $order ) {
    if ( $order->has_status( 'processing' ) ) {
        $actions['confirm-order'] = array(
            'url'  => wp_nonce_url( add_query_arg( array( 'confirm_order' => $order->get_id() ) ), 'woocommerce-confirm-order' ),
            'name' => __( 'Confirm Order', 'woocommerce' )
        );
    }
    return $actions;
}
   
add_action( 'template_redirect', 'wc_on_confirm_order_click_complete_order' );
    
function wc_on_confirm_order_click_complete_order( $order_id ) {
   if ( isset( $_GET['confirm_order'], $_GET['_wpnonce'] ) && is_user_logged_in() && wp_verify_nonce( wp_unslash( $_GET['_wpnonce'] ), 'woocommerce-confirm-order' ) ) {
        $order = wc_get_order( $_GET['confirm_order'] );
      $order->update_status( 'completed', 'Order confirmed by customer' );
    }
}