update controllers logic

app/Http/Controllers/Api/Discounts/DiscountController.php

@@ -2,7 +2,7 @@
 
 namespace App\Http\Controllers\Api\Discounts;
 
-use App\Http\Controllers\Api\BaseApiController;
+use App\Http\Controllers\Api\Core\BaseApiController;
 use App\Http\Requests\Discounts\ApplyDiscountVoucherRequest;
 use App\Http\Requests\Discounts\StoreDiscountVoucherRequest;
 use App\Http\Requests\Discounts\UpdateDiscountVoucherRequest;
@@ -50,12 +50,17 @@ class DiscountController extends BaseApiController
 
     public function apply(ApplyDiscountVoucherRequest $request): JsonResponse
     {
+        $guard = $this->authenticatedUserIdOrUnauthorized();
+        if ($guard instanceof JsonResponse) {
+            return $guard;
+        }
+
         $payload = $request->validated();
         $result = $this->applyService->applyVoucher(
             (int) $payload['voucher_id'],
             $payload['parent_ids'],
             (bool) ($payload['allow_additional'] ?? false),
-            (int) (auth()->id() ?? 0)
+            $guard
         );
 
         return response()->json($result, $result['ok'] ? 200 : 422);
@@ -104,4 +109,17 @@ class DiscountController extends BaseApiController
             'ok' => true,
         ]);
     }
+
+    /**
+     * @return int|JsonResponse
+     */
+    private function authenticatedUserIdOrUnauthorized(): int|JsonResponse
+    {
+        $userId = (int) (auth()->id() ?? 0);
+        if ($userId <= 0) {
+            return response()->json(['ok' => false, 'message' => 'Unauthorized.'], 401);
+        }
+
+        return $userId;
+    }
 }