From 8835e4a88bd80bb795a93dfe2494445d8acf0d95 Mon Sep 17 00:00:00 2001
From: kercylan98 <kercylan@gmail.com>
Date: Tue, 18 Jul 2023 18:25:21 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E6=94=AF=E6=8C=81=E9=80=9A=E8=BF=87=20?=
 =?UTF-8?q?timer.CalcNextTimeWithRefer=20=E8=AE=A1=E7=AE=97=E4=B8=8B?=
 =?UTF-8?q?=E4=B8=80=E4=B8=AA=E6=95=B4=E7=82=B9=E6=97=B6=E9=97=B4?=
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---
 utils/times/calc.go | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/utils/times/calc.go b/utils/times/calc.go
index 83d6a87..ab693a9 100644
--- a/utils/times/calc.go
+++ b/utils/times/calc.go
@@ -17,3 +17,23 @@ func CalcNextSecWithTime(t time.Time, sec int) int {
 	next := now + int64(sec) - now%int64(sec)
 	return int(next - now)
 }
+
+// CalcNextTimeWithRefer 根据参考时间计算下一个整点时间
+//   - 假设当 now 为 14:15:16 ， 参考时间为 10 分钟， 则返回 14:20:00
+//   - 假设当 now 为 14:15:16 ， 参考时间为 20 分钟， 则返回 14:20:00
+//
+// 当 refer 小于 1 分钟时，将会返回当前时间
+func CalcNextTimeWithRefer(now time.Time, refer time.Duration) time.Time {
+	referInSeconds := int(refer.Minutes()) * 60
+	if referInSeconds <= 0 {
+		return now
+	}
+
+	minutes := now.Minute()
+	seconds := now.Second()
+
+	remainder := referInSeconds - (minutes*60+seconds)%referInSeconds
+	nextTime := now.Add(time.Duration(remainder) * time.Second)
+	nextTime = time.Date(nextTime.Year(), nextTime.Month(), nextTime.Day(), nextTime.Hour(), nextTime.Minute(), 0, 0, nextTime.Location())
+	return nextTime
+}