//
// log.go
// Copyright (C) 2022 tiglog <me@tiglog.com>
//
// Distributed under terms of the MIT license.
//

package logger

import (
	"os"
	"sync"
	"time"

	"github.com/natefinch/lumberjack"
	"github.com/rs/zerolog"
	"github.com/rs/zerolog/pkgerrors"
)

var once sync.Once

var log_path = "./var/log/app.log"
var log_level = zerolog.InfoLevel

func SetLogPath(path string) {
	log_path = path
}
func SetLogLevel(level zerolog.Level) {
	log_level = level
}

var log *zerolog.Logger

func Get() *zerolog.Logger {
	once.Do(func() {
		zerolog.ErrorStackMarshaler = pkgerrors.MarshalStack
		zerolog.TimeFieldFormat = time.RFC3339Nano

		fileLogger := &lumberjack.Logger{
			Filename:   log_path,
			MaxSize:    5, //
			MaxBackups: 10,
			MaxAge:     14,
			Compress:   true,
		}

		output := zerolog.MultiLevelWriter(os.Stderr, fileLogger)

		l := zerolog.New(output).
			Level(log_level).
			With().
			Timestamp().
			Logger()
		log = &l
	})

	return log
}

func Debug(msg string) {
	Get().Debug().Msg(msg)
}
func Debugf(format string, v ...interface{}) {
	Get().Debug().Msgf(format, v...)
}
func Info(msg string) {
	Get().Info().Msg(msg)
}
func Infof(format string, v ...interface{}) {
	Get().Info().Msgf(format, v...)
}
func Warn(msg string) {
	Get().Warn().Msg(msg)
}
func Warnf(format string, v ...interface{}) {
	Get().Warn().Msgf(format, v...)
}
func Error(msg string) {
	Get().Error().Msg(msg)
}
func Errorf(format string, v ...interface{}) {
	Get().Error().Msgf(format, v...)
}