Merge pull request woocommerce#26542 from woocommerce/tweak/add-shipp…

…ing-actions

Add actions before/after shipping calculation

includes/class-wc-shipping.php

@@ -332,7 +332,26 @@ public function calculate_shipping_for_package( $package = array(), $package_key
 			if ( ! is_array( $stored_rates ) || $package_hash !== $stored_rates['package_hash'] || 'yes' === get_option( 'woocommerce_shipping_debug_mode', 'no' ) ) {
 				foreach ( $this->load_shipping_methods( $package ) as $shipping_method ) {
 					if ( ! $shipping_method->supports( 'shipping-zones' ) || $shipping_method->get_instance_id() ) {
-						$package['rates'] = $package['rates'] + $shipping_method->get_rates_for_package( $package ); // + instead of array_merge maintains numeric keys
+						/**
+						 * Fires before getting shipping rates for a package.
+						 *
+						 * @since 4.3.0
+						 * @param array $package Package of cart items.
+						 * @param WC_Shipping_Method $shipping_method Shipping method instance.
+						 */
+						do_action( 'woocommerce_before_get_rates_for_package', $package, $shipping_method );
+
+						// Use + instead of array_merge to maintain numeric keys.
+						$package['rates'] = $package['rates'] + $shipping_method->get_rates_for_package( $package );
+
+						/**
+						 * Fires after getting shipping rates for a package.
+						 *
+						 * @since 4.3.0
+						 * @param array $package Package of cart items.
+						 * @param WC_Shipping_Method $shipping_method Shipping method instance.
+						 */
+						do_action( 'woocommerce_after_get_rates_for_package', $package, $shipping_method );
 					}
 				}