From 924b55059ff19d47c000b303e8de9d2e2088f8ee Mon Sep 17 00:00:00 2001
From: Siyuan Miao <i@xswan.net>
Date: Fri, 11 Apr 2025 08:14:44 +0200
Subject: [PATCH] chore(log): add wolLogger

---
 log.go | 14 ++++++++++++++
 wol.go |  9 +++++----
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/log.go b/log.go
index 9b9a9e5..3ee8473 100644
--- a/log.go
+++ b/log.go
@@ -55,11 +55,25 @@ var (
 	serialLogger    = getLogger("serial")
 	terminalLogger  = getLogger("terminal")
 	displayLogger   = getLogger("display")
+	wolLogger       = getLogger("wol")
 	usbLogger       = getLogger("usb")
 	// external components
 	ginLogger = getLogger("gin")
 )
 
+func ErrorfL(l *zerolog.Logger, format string, err error, args ...interface{}) error {
+	if l == nil {
+		l = &logger
+	}
+
+	l.Error().Err(err).Msgf(format, args...)
+
+	err_msg := err.Error() + ": %v"
+	err_args := append(args, err)
+
+	return fmt.Errorf(err_msg, err_args...)
+}
+
 func updateLogLevel() {
 	scopeLevelMutex.Lock()
 	defer scopeLevelMutex.Unlock()
diff --git a/wol.go b/wol.go
index f0e68bb..d6fc8bc 100644
--- a/wol.go
+++ b/wol.go
@@ -3,7 +3,6 @@ package kvm
 import (
 	"bytes"
 	"encoding/binary"
-	"fmt"
 	"net"
 )
 
@@ -12,7 +11,7 @@ func rpcSendWOLMagicPacket(macAddress string) error {
 	// Parse the MAC address
 	mac, err := net.ParseMAC(macAddress)
 	if err != nil {
-		return fmt.Errorf("invalid MAC address: %v", err)
+		return ErrorfL(&wolLogger, "invalid MAC address", err)
 	}
 
 	// Create the magic packet
@@ -21,16 +20,18 @@ func rpcSendWOLMagicPacket(macAddress string) error {
 	// Set up UDP connection
 	conn, err := net.Dial("udp", "255.255.255.255:9")
 	if err != nil {
-		return fmt.Errorf("failed to establish UDP connection: %v", err)
+		return ErrorfL(&wolLogger, "failed to establish UDP connection", err)
 	}
 	defer conn.Close()
 
 	// Send the packet
 	_, err = conn.Write(packet)
 	if err != nil {
-		return fmt.Errorf("failed to send WOL packet: %v", err)
+		return ErrorfL(&wolLogger, "failed to send WOL packet", err)
 	}
 
+	wolLogger.Info().Str("mac", macAddress).Msg("WOL packet sent")
+
 	return nil
 }