initial commit

log.go

@@ -0,0 +1,57 @@
+package logging
+
+import (
+	"fmt"
+	"time"
+	"encoding/json"
+)
+
+type Log struct {
+	Time time.Time `json:"time"`
+	Level LogLevel `json:"level"`
+	Message string `json:"message"`
+}
+
+
+func valid_to_log(level LogLevel) bool {
+	return level <= maxLevel && level >= minLevel
+}
+
+func log(log Log) error {
+	if valid_to_log(log.Level) {
+		switch logFormat {
+		case FormatText:
+			fmt.Printf("%s : %s : %s\n", log.Time.Format(time.DateTime), log.Level, log.Message)
+		case FormatJson:
+			data, err := json.Marshal(log)
+			if err != nil {
+				return err
+			}
+			fmt.Println(string(data))
+		}
+	}
+
+	return nil
+}
+
+func Debug(format string, args ...any) error {
+	return log(Log{ Time: time.Now(), Level: LevelDebug, Message: fmt.Sprintf(format, args...)})
+}
+
+func Info(format string, args ...any) error {
+	return log(Log{ Time: time.Now(), Level: LevelInfo, Message: fmt.Sprintf(format, args...)})
+}
+
+func Warn(format string, args ...any) error {
+	return log(Log{ Time: time.Now(), Level: LevelWarn, Message: fmt.Sprintf(format, args...)})
+}
+
+func Error(format string, args ...any) error {
+	return log(Log{ Time: time.Now(), Level: LevelError, Message: fmt.Sprintf(format, args...)})
+}
+
+func Fatal(format string, args ...any) error {
+	return log(Log{ Time: time.Now(), Level: LevelFatal, Message: fmt.Sprintf(format, args...)})
+}
+
+