package main

import (
	"fmt"
	"io/ioutil"
	"os"
	"time"

	rotatelogs "github.com/lestrrat-go/file-rotatelogs"
	"github.com/rifflock/lfshook"
	"github.com/sirupsen/logrus"
)

func init() {
	//日志初始化
	// logrus.SetOutput(os.Stdout)
	logrus.SetOutput(ioutil.Discard)
	logrus.SetFormatter(&logrus.TextFormatter{})
	logrus.SetLevel(logrus.DebugLevel)
	logrus.AddHook(newLfsHook(7))
}

func newLfsHook(maxRemainCnt uint) logrus.Hook {
	//检查与创建日志文件夹
	_, err := os.Stat("logs")
	if os.IsNotExist(err) {
		os.Mkdir("logs", 0755)
	}

	logName := fmt.Sprintf(`logs/%s`, APPNAME)
	writer, err := rotatelogs.New(
		logName+"%Y%m%d.log",
		rotatelogs.WithLinkName(logName),
		rotatelogs.WithRotationTime(24*time.Hour),
		rotatelogs.WithRotationCount(maxRemainCnt),
	)

	if err != nil {
		panic("config local file system for logger error: " + err.Error())
	}

	lfsHook := lfshook.NewHook(lfshook.WriterMap{
		logrus.DebugLevel: writer,
		logrus.InfoLevel:  writer,
		logrus.WarnLevel:  writer,
		logrus.ErrorLevel: writer,
		logrus.FatalLevel: writer,
		logrus.PanicLevel: writer,
	}, &logrus.TextFormatter{})

	return lfsHook
}