public static function save( $post_id, $post ) {
		// Order data saved, now get it so we can manipulate status.
		$order = wc_get_order( $post_id );

		// Handle button actions.
		if ( ! empty( $_POST['wc_order_action'] ) ) { // @codingStandardsIgnoreLine

			$action = wc_clean( wp_unslash( $_POST['wc_order_action'] ) ); // @codingStandardsIgnoreLine

			if ( 'send_order_details' === $action ) {
				do_action( 'woocommerce_before_resend_order_emails', $order, 'customer_invoice' );

				// Send the customer invoice email.
				WC()->payment_gateways();
				WC()->shipping();
				WC()->mailer()->customer_invoice( $order );

				// Note the event.
				$order->add_order_note( __( 'Order details manually sent to customer.', 'woocommerce' ), false, true );

				do_action( 'woocommerce_after_resend_order_email', $order, 'customer_invoice' );

				// Change the post saved message.
				add_filter( 'redirect_post_location', array( __CLASS__, 'set_email_sent_message' ) );

			} elseif ( 'send_order_details_admin' === $action ) {

				do_action( 'woocommerce_before_resend_order_emails', $order, 'new_order' );

				WC()->payment_gateways();
				WC()->shipping();
				WC()->mailer()->emails['WC_Email_New_Order']->trigger( $order->get_id(), $order );

				do_action( 'woocommerce_after_resend_order_email', $order, 'new_order' );

				// Change the post saved message.
				add_filter( 'redirect_post_location', array( __CLASS__, 'set_email_sent_message' ) );

			} elseif ( 'regenerate_download_permissions' === $action ) {

				$data_store = WC_Data_Store::load( 'customer-download' );
				$data_store->delete_by_order_id( $post_id );
				wc_downloadable_product_permissions( $post_id, true );

			} else {

				if ( ! did_action( 'woocommerce_order_action_' . sanitize_title( $action ) ) ) {
					do_action( 'woocommerce_order_action_' . sanitize_title( $action ), $order );
				}
			}
		}
	}