From 2fc05e9bbbe2d26b238d3c231fda6d3429843411 Mon Sep 17 00:00:00 2001
From: Zexi Li <zexi.li@icloud.com>
Date: Thu, 20 Nov 2025 18:03:57 +0800
Subject: [PATCH] fix(monitor): check if LastSendNotification is zero (#23783)

---
 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 a9e7c88c43..66402e739c 100644
--- a/pkg/monitor/models/notification.go
+++ b/pkg/monitor/models/notification.go
@@ -241,7 +241,11 @@ 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