feat : coupon

app/Amqp/Consumer/CancelOrderConsumer.php

@@ -4,16 +4,20 @@ declare(strict_types=1);
 
 namespace App\Amqp\Consumer;
 
+use App\Constants\Common\CouponCode;
 use App\Constants\Common\OrderCode;
 use App\Lib\Log;
 use App\Model\Order;
+use App\Model\UserCoupon;
 use App\Service\ServiceTrait\Api\OrderTrait;
+use Exception;
 use Hyperf\Amqp\Message\ConsumerDelayedMessageTrait;
 use Hyperf\Amqp\Message\ProducerDelayedMessageTrait;
 use Hyperf\Amqp\Message\Type;
 use Hyperf\Amqp\Result;
 use Hyperf\Amqp\Annotation\Consumer;
 use Hyperf\Amqp\Message\ConsumerMessage;
+use Hyperf\DbConnection\Db;
 use Hyperf\Di\Annotation\Inject;
 use PhpAmqpLib\Message\AMQPMessage;
 
@@ -40,6 +44,12 @@ class CancelOrderConsumer extends ConsumerMessage
     #[Inject]
     protected Order $orderModel;
 
+    /**
+     * @var UserCoupon
+     */
+    #[Inject]
+    protected UserCoupon $userCouponModel;
+
 
     public function consumeMessage($data, AMQPMessage $message): Result
     {
@@ -66,9 +76,18 @@ class CancelOrderConsumer extends ConsumerMessage
             return Result::ACK;
         }
 
-        $orderInfo->status = OrderCode::CANCEL;
+        try {
-        if (!$orderInfo->save()) {
+            Db::beginTransaction();
-            $this->log->debug('CancelOrderConsumer:error:orderStatusSaveError:'.json_encode($orderInfo->toArray()));
+
+            $this->rollbackCoupon($orderType, $orderInfo);
+
+            $orderInfo->status = OrderCode::CANCEL;
+            if (!$orderInfo->save()) throw new Exception('CancelOrderConsumer:error:orderStatusSaveError:'.json_encode($orderInfo->toArray()));
+
+            Db::commit();
+        }catch (Exception $e){
+            Db::rollback();
+            $this->log->debug($e->getMessage());
             return Result::ACK;
         }
 
@@ -76,4 +95,27 @@ class CancelOrderConsumer extends ConsumerMessage
 
         return Result::ACK;
     }
+
+    /**
+     * @param $orderType
+     * @param $orderInfo
+     * @return void
+     * @throws Exception
+     */
+    private function rollbackCoupon($orderType,$orderInfo): void
+    {
+        if ($orderType != OrderCode::ORDER_TYPE_GOOD) return;
+
+        if ($orderInfo->coupon_id <= 0) return;
+
+        $couponInfo = $this->userCouponModel->where('coupon_id', $orderInfo->coupon_id)->where('user_id',$orderInfo->user_id)->first();
+
+        if (empty($couponInfo)) return;
+
+        $couponInfo->status = CouponCode::COUPON_STATUS_UNUSED;
+
+        if (date('Y-m-d H:i:s') > $couponInfo->validity_end_time) $couponInfo->status = CouponCode::COUPON_STATUS_EXPIRE;
+
+        if (!$couponInfo->save()) throw new Exception('CancelOrderConsumer:error:couponStatusUpdateError:'.json_encode($orderInfo->toArray()));
+    }
 }

app/Constants/Common/CouponCode.php

@@ -39,11 +39,11 @@ class CouponCode
     CONST INT DISPENSE_CLAIM_RULE_SINGLE_PAGE = 3;
 
     /**
-     * @var int 优惠券状态  1 未使用 2 已使用 3 未过期
+     * @var int 优惠券状态  1 未使用 2 已使用 3 过期
      */
     CONST INT COUPON_STATUS_UNUSED = 1;
     CONST INT COUPON_STATUS_USED = 2;
-    CONST INT COUPON_STATUS_NOT_EXPIRE = 3;
+    CONST INT COUPON_STATUS_EXPIRE = 3;
 
     /**
      * @var int 优惠券发放状态   1 未领取 2 已领取

app/Service/Api/Order/ConfirmationOrderService.php

@@ -35,10 +35,14 @@ class ConfirmationOrderService extends BaseOrderService
 
         $this->check();
 
+        $this->getCouponInfo();
+
         $this->compute();
 
         $this->autoSelectCoupon();
 
+        $this->reloadCompute();
+
         return $this->return->success('success',$this->orderRes);
     }
 
@@ -67,7 +71,7 @@ class ConfirmationOrderService extends BaseOrderService
         foreach ($filtered as &$value) {
             $value['amount'] = match ($value['coupon_type']) {
                 CouponCode::COUPON_TYPE_INSTANT_REDUCTION => $value['amount'],
-                CouponCode::COUPON_TYPE_DISCOUNT => $value['ratio'] * $orderMaxPrice,
+                CouponCode::COUPON_TYPE_DISCOUNT => bcmul(bcsub("1", $value['ratio'],2),$orderMaxPrice,2),
                 default => 0
             };
 
@@ -80,12 +84,7 @@ class ConfirmationOrderService extends BaseOrderService
         $this->couponId = $selectCouponInfo['id'];
         $this->orderRes['coupon'] = $selectCouponInfo;
         $this->orderRes['coupon_id'] = $selectCouponInfo['id'];
-
-        $this->reloadCompute();
     }
 
-    private function reloadCompute(): void
-    {
 
-    }
 }

app/Service/Api/Order/PlaceOrderService.php

@@ -57,9 +57,15 @@ class PlaceOrderService extends BaseOrderService
         // 生成购物车信息 ， 检测商品和库存等
         $this->check();
 
+        // 如果传递了优惠券的值 则进行检测
+        $this->getCouponInfo();
+
         // 计算
         $this->compute();
 
+        // 如果有优惠券的情况下 重载计算
+        $this->reloadCompute();
+
         // 下单 减少库存 写入数据库
         $this->placeOrder();
 

app/Service/ServiceTrait/Api/OrderTrait.php

@@ -15,6 +15,7 @@ use App\Cache\Redis\Api\ApiRedisKey;
 use App\Cache\Redis\Api\SiteCache;
 use App\Cache\Redis\RedisCache;
 use App\Constants\ApiCode;
+use App\Constants\Common\CouponCode;
 use App\Constants\Common\GoodCode;
 use App\Constants\Common\OrderCode;
 use App\Constants\Common\PayCode;
@@ -333,4 +334,55 @@ trait OrderTrait
         $producer->produce($message);
     }
 
+    /**
+     * 重载计算
+     * @return void
+     */
+    protected function reloadCompute(): void
+    {
+        if ($this->couponId <= 0 || empty($this->orderRes['coupon_info']) || $this->orderRes['coupon_id'] <= 0) return;
+
+        if ($this->orderRes['coupon_info']['amount'] <= 0 && $this->orderRes['coupon_info']['coupon_type'] != CouponCode::COUPON_TYPE_INSTANT_REDUCTION) {
+            $orderMaxPrice = max(array_column($this->orderRes['good'],'price'));
+            $this->orderRes['coupon_info']['amount'] = match ($this->orderRes['coupon_info']['coupon_type']) {
+                CouponCode::COUPON_TYPE_INSTANT_REDUCTION => $this->orderRes['coupon_info']['amount'],
+                CouponCode::COUPON_TYPE_DISCOUNT => bcmul(bcsub("1", $this->orderRes['coupon_info']['ratio'],2),$orderMaxPrice,2),
+                default => 0
+            };
+        }
+
+        $this->orderRes['favorable_good_price'] = $this->orderRes['coupon_info']['amount'];
+        $this->orderRes['good_after_discount_price'] = bcsub($this->orderRes['good_after_discount_price'],$this->orderRes['favorable_good_price'],2);
+        $this->orderRes['actual_price'] = bcsub($this->orderRes['actual_price'],$this->orderRes['favorable_good_price'],2);
+    }
+
+
+    /**
+     * @return void
+     */
+    protected function getCouponInfo(): void
+    {
+        if ($this->couponId <= 0) return;
+
+        $couponInfo = $this->userCouponModel->where('coupon_id', $this->couponId)->where('user_id',$this->userId)->first();
+        if (empty($couponInfo)) throw new ErrException('优惠券信息错误');
+        if (in_array($couponInfo->status,[CouponCode::COUPON_STATUS_USED,CouponCode::COUPON_STATUS_EXPIRE])) throw new ErrException('优惠券已经被使用');
+
+        $couponTemplateInfo = $this->couponTemplateModel->getInfoById($couponInfo->coupon_template_id);
+        if (empty($couponTempleteInfo)) throw new ErrException('优惠券信息错误');
+
+        $this->couponId = $couponInfo->id;
+        $this->orderRes['coupon_info'] = [
+            'id' => $couponInfo->id,
+            'coupon_type' => $couponTemplateInfo->coupon_type,
+            'amount' => $couponTemplateInfo->amount,
+            'ratio' => $couponTemplateInfo->ratio,
+            'coupon_template_id' => $couponTemplateInfo->id,
+            'coupon_name' => $couponInfo->coupon_name,
+            'status' => $couponInfo->status,
+            'validity_start_time' => $couponInfo->validity_start_time,
+            'validity_end_time' => $couponInfo->validity_end_time,
+        ];
+        $this->orderRes['coupon_id'] = $couponInfo->id;
+    }
 }