购物车增加积分字段

packages/Webkul/BagistoApi/src/Dto/CartData.php

@@ -171,6 +171,14 @@ class CartData
     #[ApiProperty(description: 'Total quantity of all items')]
     public ?int $itemsQty = null;
 
+    #[Groups(['query', 'mutation'])]
+    #[ApiProperty(description: "Customer's current reward points balance")]
+    public int $rewardPoints = 0;
+
+    #[Groups(['query', 'mutation'])]
+    #[ApiProperty(description: 'Reward points that can be earned from the current cart')]
+    public int $earnableRewardPoints = 0;
+
     #[Groups(['query', 'mutation'])]
     #[ApiProperty(description: 'Subtotal including tax')]
     public ?float $subTotalInclTax = null;
@@ -402,6 +410,39 @@ class CartData
             $data->selectedShippingRateTitle = null;
         }
 
+        // 积分信息：用户当前积分 + 当前购物车可获得积分
+        $data->rewardPoints = 0;
+        $data->earnableRewardPoints = 0;
+
+        if ($cart->customer_id) {
+            try {
+                $rewardPointRepository = app(\Longyi\RewardPoints\Repositories\RewardPointRepository::class);
+
+                // 用户当前积分
+                $data->rewardPoints = (int) $rewardPointRepository->getCustomerPoints($cart->customer_id);
+
+                // 当前购物车可获得积分（复用订单积分计算逻辑）
+                $rule = \Longyi\RewardPoints\Models\RewardActiveRule::active()
+                    ->ofType(\Longyi\RewardPoints\Models\RewardActiveRule::TYPE_ORDER)
+                    ->first();
+
+                if ($rule) {
+                    $customer = \Webkul\Customer\Models\Customer::find($cart->customer_id);
+
+                    if ($customer && $rule->isApplicableToCustomer($customer)) {
+                        $pointsPerCurrency = $rule->getPointsForCustomer($customer);
+
+                        if ($pointsPerCurrency > 0) {
+                            $data->earnableRewardPoints = (int) floor(($cart->base_grand_total ?? 0) * $pointsPerCurrency);
+                        }
+                    }
+                }
+            } catch (\Throwable $e) {
+                // 积分计算失败不阻塞购物车接口
+                report($e);
+            }
+        }
+
         return $data;
     }