package go_chat_api_util

import (
	"github.com/lestrrat-go/file-rotatelogs"
	"github.com/sirupsen/logrus"
	"io"
	"time"
)

var log *logrus.Logger

type RotateConfig struct {
	MaxAge       time.Duration //最大时间
	RotationTime time.Duration //分隔间隔
}
type RotateOption func(config *RotateConfig)

func WithMaxAge(age time.Duration) RotateOption {
	return func(q *RotateConfig) {
		q.MaxAge = age
	}
}
func WithRotationTime(roTime time.Duration) RotateOption {
	return func(config *RotateConfig) {
		config.RotationTime = roTime
	}
}

func NewLoggerByLogName(path string, options ...RotateOption) (*logrus.Logger, error) {
	co := &RotateConfig{MaxAge: 24 * 31 * 12 * time.Hour * 2, RotationTime: 7 * 24 * time.Hour}
	for _, v := range options {
		v(co)
	}
	writer, err := rotatelogs.New(
		path+"log%Y%m%d%H%M%S",
		rotatelogs.WithLinkName(path),
		rotatelogs.WithMaxAge(co.MaxAge),
		rotatelogs.WithRotationTime(co.RotationTime),
	)
	if err != nil {
		return nil, err
	}
	return NewLogger(writer), err
}
func NewLogger(f io.Writer) *logrus.Logger {
	log = logrus.New()
	log.Formatter = &logrus.JSONFormatter{}
	//f, err := os.OpenFile("./log/log.txt", os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
	//if err != nil {
	//	panic("不能打开日志文件 " + err.Error())
	//}
	customF := new(logrus.JSONFormatter)
	customF.TimestampFormat = "2006-01-02 15:04:05"
	log.SetFormatter(customF)
	log.SetLevel(logrus.DebugLevel)
	//log.Out = f
	log.Out = f
	return log
}