Increase Product quantity if order is cancelled

Author: Jenis0619

app/Http/Controllers/Api/OrderController.php

@@ -11,6 +11,7 @@
 use App\Models\Api\Product;
 use App\Models\Order;
 use Illuminate\Http\Request;
+use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Mail;
 
 class OrderController extends Controller
@@ -40,6 +41,7 @@ public function index()
     public function view(Order $order)
     {
         $order->load('items.product');
+
         return new OrderResource($order);
     }
 
@@ -50,10 +52,27 @@ public function getStatuses()
 
     public function changeStatus(Order $order, $status)
     {
-        $order->status = $status;
-        $order->save();
+        DB::beginTransaction();
+        try {
+            $order->status = $status;
+            $order->save();
+
+            if ($status === OrderStatus::Cancelled->value) {
+                foreach ($order->items as $item) {
+                    $product = $item->product;
+                    if ($product && $product->quantity !== null) {
+                        $product->quantity += $item->quantity;
+                        $product->save();
+                    }
+                }
+            }
+            Mail::to($order->user)->send(new OrderUpdateEmail($order));
+        } catch (\Exception $e) {
+            DB::rollBack();
+            throw $e;
+        }
 
-        Mail::to($order->user)->send(new OrderUpdateEmail($order));
+        DB::commit();
 
         return response('', 200);
     }