// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.

package timeutils

import (
	"time"
)

const (
	RFC3339Milli = "2006-01-02T15:04:05.999Z07:00"
)

func FormatMillis(millis int64) string {
	return time.UnixMilli(millis).Format(RFC3339Milli)
}

func ParseFormatedMillis(s string) (millis int64, err error) {
	if s == "" {
		return 0, nil
	}

	t, err := time.Parse(RFC3339Milli, s)
	if err != nil {
		return 0, err
	}

	return t.UnixMilli(), nil
}