From ce8f84add6c7b13d8a80c8bbb9c1e6958d3bace3 Mon Sep 17 00:00:00 2001
From: Zexi Li <zexi.li@icloud.com>
Date: Thu, 20 Nov 2025 18:04:10 +0800
Subject: [PATCH] fix(monitor): check if LastSendNotification is zero (#23782)

---
 pkg/monitor/models/notification.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkg/monitor/models/notification.go b/pkg/monitor/models/notification.go
index e4ed6466be..019f822bfb 100644
--- a/pkg/monitor/models/notification.go
+++ b/pkg/monitor/models/notification.go
@@ -237,7 +237,11 @@ func (n *SNotification) ShouldSendNotification() bool {
 	if n.Frequency == 0 {
 		return true
 	}
-	if int64(time.Now().Sub(n.LastSendNotification)/time.Second)+int64(60) >= n.Frequency {
+	// 如果从未发送过通知（LastSendNotification 为零值），允许第一次发送
+	if n.LastSendNotification.IsZero() {
+		return true
+	}
+	if int64(time.Since(n.LastSendNotification)/time.Second)+int64(60) >= n.Frequency {
 		return true
 	}
 	return false