fix: refine logging

log/default.go

@@ -1,7 +1,10 @@
 package log
 
 import (
+	"fmt"
+	"log"
 	"log/slog"
+	"strings"
 
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promauto"
@@ -16,11 +19,32 @@ var (
 	)
 )
 
-func Error(message string, err error) {
-	slog.Error(message + ": " + err.Error())
+func Fatal(message string, args ...interface{}) {
+	s := format(message, args)
+	log.Fatal(s)
+
 	errorMetric.Inc()
 }
-func ErrorMsg(message string) {
-	slog.Error(message)
+
+func Error(message string, args ...interface{}) {
+	s := format(message, args)
+	slog.Error(s)
+
 	errorMetric.Inc()
 }
+
+func Warn(message string, args ...interface{}) {
+	s := format(message, args)
+	slog.Warn(s)
+}
+
+func Info(message string, args ...interface{}) {
+	s := format(message, args)
+	slog.Info(s)
+}
+
+func format(message string, args []interface{}) string {
+	var w strings.Builder
+	fmt.Fprintf(&w, message, args)
+	return w.String()
+}