package utils

import (
	"strings"
	"time"

	"github.com/jinzhu/now"
)

const DateFormat = "2006-01-02"
const DateTimeFormat = "2006-01-02 15:04:05"

func GetBeginAndEndOfDay(date string) (begin, end int64, err error) {
	t, err := now.Parse(date) // 2017-10-13 00:00:00, nil
	if err != nil {
		return
	}
	begin = now.With(t).BeginningOfDay().Unix()
	end = now.With(t).EndOfDay().Unix()
	return
}

func Format(date time.Time) string {
	return date.Format("2006-01-02")
}
func FormatSecond(date time.Time) string {
	return date.Format("2006-01-02 15:04:05")
}

func ParseDate(date string) string {
	if i := strings.Index(date, "T"); i > 0 {
		return date[:i]
	}
	return date
}

func ParseDateToTime(date string) time.Time {
	return now.MustParse(ParseDate(date))
}

func ParseUnixStamp(date string) int64 {
	if i := strings.Index(date, "T"); i > 0 {
		return now.MustParse(date[:i]).Unix()
	}
	return 0
}

func GetYearDay2(tm *time.Time) int {
	return tm.Year()*1000 + tm.YearDay()
}