From 4df98f6379b78bced32c869d960488c01ff3e973 Mon Sep 17 00:00:00 2001
From: danielvonmitschke <hello@danielvonmitschke.com>
Date: Mon, 17 Jun 2024 18:21:20 +0200
Subject: [PATCH] Fire action if order line item has been restored (#40848)

* Fire action if order line item has been restored

This is the equivalent to the 'woocommerce_reduce_order_item_stock' hook in the wc_reduce_stock_levels() function.

* Add @since tag to docblock

* Change position of @since tag

* Add changelog

* Use tabs for indents

* Fix indents again

* Fix another indent
---
 .../changelog/2024-06-14-18-11-56-915980           |  4 ++++
 .../woocommerce/includes/wc-stock-functions.php    | 14 +++++++++++++-
 2 files changed, 17 insertions(+), 1 deletion(-)
 create mode 100644 plugins/woocommerce/changelog/2024-06-14-18-11-56-915980

diff --git a/plugins/woocommerce/changelog/2024-06-14-18-11-56-915980 b/plugins/woocommerce/changelog/2024-06-14-18-11-56-915980
new file mode 100644
index 00000000000..dfd4e785f0f
--- /dev/null
+++ b/plugins/woocommerce/changelog/2024-06-14-18-11-56-915980
@@ -0,0 +1,4 @@
+Significance: minor
+Type: add
+
+Added 'woocommerce_restore_order_item_stock' filter for restored line item stock on canceled orders
diff --git a/plugins/woocommerce/includes/wc-stock-functions.php b/plugins/woocommerce/includes/wc-stock-functions.php
index 42f79bd04b0..c023e0e4e9b 100644
--- a/plugins/woocommerce/includes/wc-stock-functions.php
+++ b/plugins/woocommerce/includes/wc-stock-functions.php
@@ -296,6 +296,7 @@ function wc_increase_stock_levels( $order_id ) {
 
 		$item_name = $product->get_formatted_name();
 		$new_stock = wc_update_product_stock( $product, $item_stock_reduced, 'increase' );
+		$old_stock = $new_stock - $item_stock_reduced;
 
 		if ( is_wp_error( $new_stock ) ) {
 			/* translators: %s item name. */
@@ -306,7 +307,18 @@ function wc_increase_stock_levels( $order_id ) {
 		$item->delete_meta_data( '_reduced_stock' );
 		$item->save();
 
-		$changes[] = $item_name . ' ' . ( $new_stock - $item_stock_reduced ) . '&rarr;' . $new_stock;
+		$changes[] = $item_name . ' ' . $old_stock . '&rarr;' . $new_stock;
+
+		/**
+		 * Fires when stock restored to a specific line item
+		 *
+		 * @since 9.1.0
+		 * @param WC_Order_Item_Product $item Order item data.
+		 * @param int $new_stock  New stock.
+		 * @param int $old_stock Old stock.
+		 * @param WC_Order $order  Order data.
+		 */
+		do_action( 'woocommerce_restore_order_item_stock', $item, $new_stock, $old_stock, $order );
 	}
 
 	if ( $changes ) {