From 87b2558858475eaf64ceff8fae55ee0f503a83a6 Mon Sep 17 00:00:00 2001
From: dlPtr <xxn.dlptr@gmail.com>
Date: Sat, 10 Sep 2022 18:31:11 +0800
Subject: [PATCH] Update: use existed function

---
 totp.go | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/totp.go b/totp.go
index b0b0771..7695468 100644
--- a/totp.go
+++ b/totp.go
@@ -33,9 +33,8 @@ func (t *TOTP) Now() string {
 
 // Generate the current time OTP and expiration time
 func (t *TOTP) NowWithExpiration() (string, int64) {
-	interval64 := int64(t.interval)
-	timeCodeInt64 := time.Now().Unix() / interval64
-	expirationTime := (timeCodeInt64 + 1) * interval64
+	timeCodeInt64 := t.timecode(currentTimestamp())
+	expirationTime := (timeCodeInt64 + 1) * int64(t.interval)
 	return t.generateOTP(timeCodeInt64), expirationTime
 }