package utils

import (
	"fmt"
	"go_dreamfactory/sys/configure"
	"math"
	"time"

	"github.com/jinzhu/now"
)

// 判断时间点处于今天
func IsToday(d int64) bool {
	tt := time.Unix(d, 0)
	now := configure.Now()

	return tt.Year() == now.Year() && tt.Month() == now.Month() && tt.Day() == now.Day()
}
func IsNextToday(d int64) bool {
	d += 24 * 3600
	tt := time.Unix(d, 0)
	now := configure.Now()
	return tt.Year() == now.Year() && tt.Month() == now.Month() && tt.Day() == now.Day()
}

// 判断是否是出于同一周
func IsSameWeek(d int64) bool {
	// 将时间戳转换为 time.Time 类型
	time1 := time.Unix(d, 0)
	time2 := configure.Now()

	// 获取时间戳所属的年份和周数
	year1, week1 := time1.ISOWeek()
	year2, week2 := time2.ISOWeek()

	// 判断是否同一年同一周
	if year1 == year2 && week1 == week2 {
		return true
	} else {
		return false
	}
}

// 判断是否大于1周
func IsAfterWeek(d int64) bool {
	tt := time.Unix(d, 0)
	nowt := configure.Now()
	if !tt.Before(nowt) {
		return false
	}
	at := now.With(tt).AddDate(0, 0, 7).Unix()
	return nowt.Unix() >= at
}

// 是否今日首次
func IsFirstTody(timestamp int64) bool {
	now := configure.Now()
	if timestamp == 0 || timestamp > now.Unix() {
		return false
	}
	tt := time.Unix(timestamp, 0)
	if !IsToday(timestamp) {
		if tt.Before(now) {
			return true
		}
	}
	return false
}

// 获取当前时间戳下一天0点时间戳
func GetZeroTime(curTime int64) int64 {
	currentTime := time.Unix(curTime, 0)
	startTime := time.Date(currentTime.Year(), currentTime.Month(), currentTime.Day(), 0, 0, 0, 0, currentTime.Location())

	return startTime.Unix() + 86400 //3600*24
}

func GetCurZeroTime(curTime int64) int64 {
	currentTime := time.Unix(curTime, 0)
	startTime := time.Date(currentTime.Year(), currentTime.Month(), currentTime.Day(), 0, 0, 0, 0, currentTime.Location())

	return startTime.Unix()
}

func IsYestoday(timestamp int64) bool {
	tt := time.Unix(timestamp, 0)
	yesTime := configure.Now().AddDate(0, 0, -1)
	return tt.Year() == yesTime.Year() && tt.Month() == yesTime.Month() && tt.Day() == yesTime.Day()
}

// 确定换算规则 现实1H = 虚拟4H
// 计算：根据开服时间为起始时间，计算当前时间与起始时间的差值，计算虚拟当前时间
func MatrixingHour(beginTime string) (t time.Time) {
	location, err := time.LoadLocation("Asia/Shanghai")
	if err != nil {
		return
	}
	myConfig := &now.Config{
		WeekStartDay: time.Monday,
		TimeLocation: location,
		TimeFormats:  []string{"2006-01-02 15:04:05"},
	}

	serverStartTime, _ := myConfig.Parse(beginTime)

	n := configure.Now()
	timeSub := n.Sub(serverStartTime)
	hourSub := timeSub.Hours() * 2

	hh, _ := time.ParseDuration("1h")
	fmt.Println(hourSub, math.Ceil(hourSub))
	t2 := serverStartTime.Add(hh * time.Duration(math.Ceil(hourSub)))

	fmt.Println(t2)

	return
}

// 时间戳格式化字符串日期
func FormatStr(timestamp int64, format string) string {
	if format == "" {
		format = "2006-01-02 15:04:05"
	}
	return time.Unix(timestamp, 0).Format(format)
}

func AddHour(hour int) time.Time {
	return configure.Now().Add(time.Duration(hour) * time.Hour)
}

// CD
func IsInCDHour(cdTime int64) bool {
	if cdTime == 0 {
		return false
	}
	return configure.Now().Unix() < cdTime
}

// 获取本月的开始和结束的时间戳
func GetMonthStart() int64 {
	t := configure.Now()
	monthStartDay := t.AddDate(0, 0, -t.Day()+1)
	monthStartTime := time.Date(monthStartDay.Year(), monthStartDay.Month(), monthStartDay.Day(), 0, 0, 0, 0, t.Location())
	_d1 := monthStartTime.Unix()
	return _d1
}

// 获取本月的结束的时间戳
func GetMonthEnd(curTime int64) int64 {
	t := time.Unix(curTime, 0)
	monthStartDay := t.AddDate(0, 0, -t.Day()+1)
	monthStartTime := time.Date(monthStartDay.Year(), monthStartDay.Month(), monthStartDay.Day(), 0, 0, 0, 0, t.Location())
	monthEndDay := monthStartTime.AddDate(0, 1, -1)
	monthEndTime := time.Date(monthEndDay.Year(), monthEndDay.Month(), monthEndDay.Day(), 23, 59, 59, 0, t.Location())
	_d2 := monthEndTime.Unix()
	return _d2
}

// 获取今天零点时间戳
func GetTodayZeroTime(curTime int64) int64 {
	currentTime := time.Unix(curTime, 0)
	startTime := time.Date(currentTime.Year(), currentTime.Month(), currentTime.Day(), 0, 0, 0, 0, currentTime.Location())

	return startTime.Unix()
}

// 计算自然天数
func DiffDays(t1, t2 int64) int {
	if t1 == t2 {
		return -1
	}

	if t1 > t2 {
		t1, t2 = t2, t1
	}

	secOfDay := 3600 * 24
	diffDays := 0
	secDiff := t2 - t1
	if secDiff > int64(secOfDay) {
		tmpDays := int(secDiff / int64(secOfDay))
		t1 += int64(tmpDays) * int64(secOfDay)
		diffDays += tmpDays
	}
	st := time.Unix(t1, 0)
	et := time.Unix(t2, 0)
	dateformat := "20060102"
	if st.Format(dateformat) != et.Format(dateformat) {
		diffDays += 1
	}
	return diffDays
}

func WeekIntervalTime(curTime int64) (endTime int64) {
	now := time.Unix(curTime, 0)
	offset := int(time.Monday - now.Weekday())
	//周日做特殊判断 因为time.Monday = 0
	if offset > 0 {
		offset = -6
	}

	year, month, day := now.Date()
	thisWeek := time.Date(year, month, day, 0, 0, 0, 0, time.Local)
	//startTime = thisWeek.AddDate(0, 0, offset+7*week).Unix()
	endTime = thisWeek.AddDate(0, 0, offset+7).Unix()

	return endTime
}