fix: more bug

app/Http/Controllers/Admin/CouponController.php

@@ -94,12 +94,12 @@ class CouponController extends Controller
     private function multiGenerate(CouponGenerate $request)
     {
         $coupons = [];
-        for ($i = 0;$i < $request->input('generate_count');$i++) {
         $coupon = $request->validated();
         $coupon['limit_plan_ids'] = json_encode($coupon['limit_plan_ids']);
-            $coupon['code'] = Helper::randomChar(8);
         $coupon['created_at'] = $coupon['updated_at'] = time();
         unset($coupon['generate_count']);
+        for ($i = 0;$i < $request->input('generate_count');$i++) {
+            $coupon['code'] = Helper::randomChar(8);
             array_push($coupons, $coupon);
         }
         DB::beginTransaction();

app/Services/MailService.php

@@ -30,7 +30,8 @@ class MailService
     private function remindTrafficIsWarnValue($ud, $transfer_enable)
     {
         if ($ud <= 0) return false;
-        $percentage = $ud / $transfer_enable * 100;
+        if (!$transfer_enable) return false;
+        $percentage = ($ud / $transfer_enable) * 100;
         if ($percentage < 80) return false;
         if ($percentage >= 100) return false;
         return true;