package lib

import (
	"strconv"
	"time"
)

/*
时间常量
*/
const (
	//定义每分钟的秒数
	SecondsPerMinute = 60
	//定义每小时的秒数
	SecondsPerHour = SecondsPerMinute * 60
	//定义每天的秒数
	SecondsPerDay = SecondsPerHour * 24
)

/*
时间转换函数
*/
func resolveTime(seconds int) (day int, hour int, minute int, second int) {
	//秒
	second = seconds % 60

	//天
	day = seconds / SecondsPerDay
	seconds -= day * SecondsPerDay

	//时
	hour = seconds / SecondsPerHour
	seconds -= hour * SecondsPerHour

	//分
	minute = seconds / SecondsPerMinute
	seconds -= minute * SecondsPerHour

	return
}

func MinuteToDataTime(t int) string {
	str := ""
	day, hour, minute, second := resolveTime(t)
	if day > 0 {
		str += strconv.Itoa(day) + "天 "
	}
	if hour > 0 {
		str += strconv.Itoa(hour) + "小时 "
	}
	if minute > 0 {
		str += strconv.Itoa(minute) + "分钟 "
	}
	if second > 0 {
		str += strconv.Itoa(second) + "秒"
	}

	return str
}

func TimeSinceToString(startTime, endTime time.Time) string {
	str := ""
	// 计算时间差
	duration := endTime.Sub(startTime)
	// 将时间差表示为天、小时和分钟
	days := int(duration.Hours() / 24)
	hours := int(duration.Hours()) % 24
	minutes := int(duration.Minutes()) % 60
	seconds := int(duration.Seconds()) % 60

	//fmt.Printf("时间差为 %d 天 %d 小时 %d 分钟\n", days, hours, minutes)
	if days > 0 {
		str += strconv.Itoa(days) + "天 "
	}
	if hours > 0 {
		str += strconv.Itoa(hours) + "小时 "
	}
	if minutes > 0 {
		str += strconv.Itoa(minutes) + "分钟 "
	}
	if seconds > 0 {
		str += strconv.Itoa(seconds) + "秒 "
	}

	return str
}