改进 返回用户组价格

app/Models/User.php

@@ -162,6 +162,18 @@ public function startTransfer(self $to, string $amount, string|null $description
         return $this->balance;
     }
 
+    public function getCostPrice(string $price): string
+    {
+        $this->load('user_group');
+
+        if (!$this->user_group) {
+            return $price;
+        }
+
+        return $this->user_group->getCostPrice($price);
+    }
+
+
     /**
      * 扣除费用
      *
@@ -169,6 +181,7 @@ public function startTransfer(self $to, string $amount, string|null $description
      * @param string      $description
      * @param bool        $fail
      * @param array       $options
+     *
      * @return string
      */
     public function reduce(string|null $amount = '0', string $description = '消费', bool $fail = false, array $options = []): string
@@ -214,6 +227,7 @@ public function reduce(string|null $amount = '0', string $description = '消费'
      * @param string      $payment
      * @param string      $description
      * @param array       $options
+     *
      * @return string
      */
     public function charge(string|null $amount = '0', string $payment = 'console', string $description = '充值', array $options = []): string

app/Models/UserGroup.php

@@ -60,4 +60,15 @@ public function setTempGroup(User $user, self $group, Carbon $expired_at): User
 
         return $user;
     }
+
+    public function getCostPrice(string $price): string
+    {
+        if ($this->exempt) {
+            return '0';
+        } else if ($this->discount !== 100 && $this->discount !== null) {
+            $price = bcmul($price, bcdiv($this->discount, '100', 4), 4);
+        }
+
+        return $price;
+    }
 }