package utils

import (
	"bufio"
	"crypto/md5"
	"crypto/sha1"
	"encoding/base64"
	"encoding/hex"
	"encoding/json"
	"errors"
	"fmt"
	"github.com/shopspring/decimal"
	"image"
	"image/png"
	"io"
	"math"
	"math/rand"
	"net"
	"net/http"
	"os"
	"os/exec"
	"path"
	"regexp"
	"runtime"
	"strconv"
	"strings"
	"time"
	"unicode"
)

// 随机数种子
var rnd = rand.New(rand.NewSource(time.Now().UnixNano()))

func GetRandString(size int) string {
	allLetterDigit := []string{"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "!", "@", "#", "$", "%", "^", "&", "*"}
	randomSb := ""
	digitSize := len(allLetterDigit)
	for i := 0; i < size; i++ {
		randomSb += allLetterDigit[rnd.Intn(digitSize)]
	}
	return randomSb
}

func GetRandStringNoSpecialChar(size int) string {
	allLetterDigit := []string{"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"}
	randomSb := ""
	digitSize := len(allLetterDigit)
	for i := 0; i < size; i++ {
		randomSb += allLetterDigit[rnd.Intn(digitSize)]
	}
	return randomSb
}

func StringsToJSON(str string) string {
	rs := []rune(str)
	jsons := ""
	for _, r := range rs {
		rint := int(r)
		if rint < 128 {
			jsons += string(r)
		} else {
			jsons += "\\u" + strconv.FormatInt(int64(rint), 16) // json
		}
	}
	return jsons
}

// 序列化
func ToString(v interface{}) string {
	data, _ := json.Marshal(v)
	return string(data)
}

// md5加密
func MD5(data string) string {
	m := md5.Sum([]byte(data))
	return hex.EncodeToString(m[:])
}

// 获取数字随机字符
func GetRandDigit(n int) string {
	return fmt.Sprintf("%0"+strconv.Itoa(n)+"d", rnd.Intn(int(math.Pow10(n))))
}

// 获取随机数
func GetRandNumber(n int) int {
	return rnd.Intn(n)
}

func GetRandInt(min, max int) int {
	if min >= max || min == 0 || max == 0 {
		return max
	}
	return rand.Intn(max-min) + min
}

func GetToday(format string) string {
	today := time.Now().Format(format)
	return today
}

// 获取今天剩余秒数
func GetTodayLastSecond() time.Duration {
	today := GetToday(FormatDate) + " 23:59:59"
	end, _ := time.ParseInLocation(FormatDateTime, today, time.Local)
	return time.Duration(end.Unix()-time.Now().Local().Unix()) * time.Second
}

// 处理出生日期函数
func GetBrithDate(idcard string) string {
	l := len(idcard)
	var s string
	if l == 15 {
		s = "19" + idcard[6:8] + "-" + idcard[8:10] + "-" + idcard[10:12]
		return s
	}
	if l == 18 {
		s = idcard[6:10] + "-" + idcard[10:12] + "-" + idcard[12:14]
		return s
	}
	return GetToday(FormatDate)
}

// 处理性别
func WhichSexByIdcard(idcard string) string {
	var sexs = [2]string{"女", "男"}
	length := len(idcard)
	if length == 18 {
		sex, _ := strconv.Atoi(string(idcard[16]))
		return sexs[sex%2]
	} else if length == 15 {
		sex, _ := strconv.Atoi(string(idcard[14]))
		return sexs[sex%2]
	}
	return "男"
}

// 截取小数点后几位
func SubFloatToString(f float64, m int) string {
	n := strconv.FormatFloat(f, 'f', -1, 64)
	if n == "" {
		return ""
	}
	if m >= len(n) {
		return n
	}
	newn := strings.Split(n, ".")
	if m == 0 {
		return newn[0]
	}
	if len(newn) < 2 || m >= len(newn[1]) {
		return n
	}
	return newn[0] + "." + newn[1][:m]
}

// 截取小数点后几位
func SubFloatToFloat(f float64, m int) float64 {
	newn := SubFloatToString(f, m)
	newf, _ := strconv.ParseFloat(newn, 64)
	return newf
}

// 截取小数点后几位
func SubFloatToFloatStr(f float64, m int) string {
	newn := SubFloatToString(f, m)
	return newn
}

// 获取相差时间-年
func GetYearDiffer(start_time, end_time string) int {
	t1, _ := time.ParseInLocation("2006-01-02", start_time, time.Local)
	t2, _ := time.ParseInLocation("2006-01-02", end_time, time.Local)
	age := t2.Year() - t1.Year()
	if t2.Month() < t1.Month() || (t2.Month() == t1.Month() && t2.Day() < t1.Day()) {
		age--
	}
	return age
}

// 获取相差时间-秒
func GetSecondDifferByTime(start_time, end_time time.Time) int64 {
	diff := end_time.Unix() - start_time.Unix()
	return diff
}

func FixFloat(f float64, m int) float64 {
	newn := SubFloatToString(f+0.00000001, m)
	newf, _ := strconv.ParseFloat(newn, 64)
	return newf
}

// 将字符串数组转化为逗号分割的字符串形式  ["str1","str2","str3"] >>> "str1,str2,str3"
func StrListToString(strList []string) (str string) {
	if len(strList) > 0 {
		for k, v := range strList {
			if k == 0 {
				str = v
			} else {
				str = str + "," + v
			}
		}
		return
	}
	return ""
}

// Token
func GetToken() string {
	randStr := GetRandString(64)
	token := MD5(randStr + Md5Key)
	tokenLen := 64 - len(token)
	return strings.ToUpper(token + GetRandString(tokenLen))
}

// 数据没有记录
func ErrNoRow() string {
	return "<QuerySeter> no row found"
}

// 判断文件是否存在
func FileIsExist(filePath string) bool {
	_, err := os.Stat(filePath)
	return err == nil || os.IsExist(err)
}

// 获取图片扩展名
func GetImgExt(file string) (ext string, err error) {
	var headerByte []byte
	headerByte = make([]byte, 8)
	fd, err := os.Open(file)
	if err != nil {
		return "", err
	}
	defer fd.Close()
	_, err = fd.Read(headerByte)
	if err != nil {
		return "", err
	}
	xStr := fmt.Sprintf("%x", headerByte)
	switch {
	case xStr == "89504e470d0a1a0a":
		ext = ".png"
	case xStr == "0000010001002020":
		ext = ".ico"
	case xStr == "0000020001002020":
		ext = ".cur"
	case xStr[:12] == "474946383961" || xStr[:12] == "474946383761":
		ext = ".gif"
	case xStr[:10] == "0000020000" || xStr[:10] == "0000100000":
		ext = ".tga"
	case xStr[:8] == "464f524d":
		ext = ".iff"
	case xStr[:8] == "52494646":
		ext = ".ani"
	case xStr[:4] == "4d4d" || xStr[:4] == "4949":
		ext = ".tiff"
	case xStr[:4] == "424d":
		ext = ".bmp"
	case xStr[:4] == "ffd8":
		ext = ".jpg"
	case xStr[:2] == "0a":
		ext = ".pcx"
	default:
		ext = ""
	}
	return ext, nil
}

// 保存图片
func SaveImage(path string, img image.Image) (err error) {
	//需要保持的文件
	imgfile, err := os.Create(path)
	defer imgfile.Close()
	// 以PNG格式保存文件
	err = png.Encode(imgfile, img)
	return err
}

// 下载图片
func DownloadImage(imgUrl string) (filePath string, err error) {
	imgPath := "./static/imgs/"
	fileName := path.Base(imgUrl)
	res, err := http.Get(imgUrl)
	if err != nil {
		fmt.Println("A error occurred!")
		return
	}
	defer res.Body.Close()
	// 获得get请求响应的reader对象
	reader := bufio.NewReaderSize(res.Body, 32*1024)

	filePath = imgPath + fileName
	file, err := os.Create(filePath)
	if err != nil {
		return
	}
	// 获得文件的writer对象
	writer := bufio.NewWriter(file)

	written, _ := io.Copy(writer, reader)
	fmt.Printf("Total length: %d \n", written)
	return
}

// 保存base64数据为文件
func SaveBase64ToFile(content, path string) error {
	data, err := base64.StdEncoding.DecodeString(content)
	if err != nil {
		return err
	}
	f, err := os.Create(path)
	defer f.Close()
	if err != nil {
		return err
	}
	f.Write(data)
	return nil
}

func SaveBase64ToFileBySeek(content, path string) (err error) {
	data, err := base64.StdEncoding.DecodeString(content)
	exist, err := PathExists(path)
	if err != nil {
		return
	}
	if !exist {
		f, err := os.Create(path)
		if err != nil {
			return err
		}
		n, _ := f.Seek(0, 2)
		// 从末尾的偏移量开始写入内容
		_, err = f.WriteAt([]byte(data), n)
		defer f.Close()
	} else {
		f, err := os.OpenFile(path, os.O_WRONLY, 0644)
		if err != nil {
			return err
		}
		n, _ := f.Seek(0, 2)
		// 从末尾的偏移量开始写入内容
		_, err = f.WriteAt([]byte(data), n)
		defer f.Close()
	}

	return nil
}

func PathExists(path string) (bool, error) {
	_, err := os.Stat(path)
	if err == nil {
		return true, nil
	}
	if os.IsNotExist(err) {
		return false, nil
	}
	return false, err
}

func StartIndex(page, pagesize int) int {
	if page > 1 {
		return (page - 1) * pagesize
	}
	return 0
}
func PageCount(count, pagesize int) int {
	if count%pagesize > 0 {
		return count/pagesize + 1
	} else {
		return count / pagesize
	}
}

func TrimHtml(src string) string {
	//将HTML标签全转换成小写
	re, _ := regexp.Compile("\\<[\\S\\s]+?\\>")
	src = re.ReplaceAllStringFunc(src, strings.ToLower)

	re, _ = regexp.Compile("\\<img[\\S\\s]+?\\>")
	src = re.ReplaceAllString(src, "[图片]")

	re, _ = regexp.Compile("class[\\S\\s]+?>")
	src = re.ReplaceAllString(src, "")
	re, _ = regexp.Compile("\\<[\\S\\s]+?\\>")
	src = re.ReplaceAllString(src, "")
	return strings.TrimSpace(src)
}

//1556164246  ->  2019-04-25 03:50:46 +0000
//timestamp

func TimeToTimestamp() {
	fmt.Println(time.Unix(1556164246, 0).Format("2006-01-02 15:04:05"))
}

func ToUnicode(text string) string {
	textQuoted := strconv.QuoteToASCII(text)
	textUnquoted := textQuoted[1 : len(textQuoted)-1]
	return textUnquoted
}

func VersionToInt(version string) int {
	version = strings.Replace(version, ".", "", -1)
	n, _ := strconv.Atoi(version)
	return n
}
func IsCheckInList(list []int, s int) bool {
	for _, v := range list {
		if v == s {
			return true
		}
	}
	return false

}

func round(num float64) int {
	return int(num + math.Copysign(0.5, num))
}

func toFixed(num float64, precision int) float64 {
	output := math.Pow(10, float64(precision))
	return float64(round(num*output)) / output
}

// GetWilsonScore returns Wilson Score
func GetWilsonScore(p, n float64) float64 {
	if p == 0 && n == 0 {
		return 0
	}

	return toFixed(((p+1.9208)/(p+n)-1.96*math.Sqrt(p*n/(p+n)+0.9604)/(p+n))/(1+3.8416/(p+n)), 2)
}

// 将中文数字转化成数字，比如 第三百四十五章，返回第345章 不支持一亿及以上
func ChangeWordsToNum(str string) (numStr string) {
	words := ([]rune)(str)
	num := 0
	n := 0
	for i := 0; i < len(words); i++ {
		word := string(words[i : i+1])
		switch word {
		case "万":
			if n == 0 {
				n = 1
			}
			n = n * 10000
			num = num*10000 + n
			n = 0
		case "千":
			if n == 0 {
				n = 1
			}
			n = n * 1000
			num += n
			n = 0
		case "百":
			if n == 0 {
				n = 1
			}
			n = n * 100
			num += n
			n = 0
		case "十":
			if n == 0 {
				n = 1
			}
			n = n * 10
			num += n
			n = 0
		case "一":
			n += 1
		case "二":
			n += 2
		case "三":
			n += 3
		case "四":
			n += 4
		case "五":
			n += 5
		case "六":
			n += 6
		case "七":
			n += 7
		case "八":
			n += 8
		case "九":
			n += 9
		case "零":
		default:
			if n > 0 {
				num += n
				n = 0
			}
			if num == 0 {
				numStr += word
			} else {
				numStr += strconv.Itoa(num) + word
				num = 0
			}
		}
	}
	if n > 0 {
		num += n
		n = 0
	}
	if num != 0 {
		numStr += strconv.Itoa(num)
	}
	return
}

func Sha1(data string) string {
	sha1 := sha1.New()
	sha1.Write([]byte(data))
	return hex.EncodeToString(sha1.Sum([]byte("")))
}

func GetVideoPlaySeconds(videoPath string) (playSeconds float64, err error) {
	cmd := `ffmpeg -i ` + videoPath + `  2>&1 | grep 'Duration' | cut -d ' ' -f 4 | sed s/,//`
	out, err := exec.Command("bash", "-c", cmd).Output()
	if err != nil {
		return
	}
	outTimes := string(out)
	fmt.Println("outTimes:", outTimes)
	if outTimes != "" {
		timeArr := strings.Split(outTimes, ":")
		h := timeArr[0]
		m := timeArr[1]
		s := timeArr[2]
		hInt, err := strconv.Atoi(h)
		if err != nil {
			return playSeconds, err
		}

		mInt, err := strconv.Atoi(m)
		if err != nil {
			return playSeconds, err
		}
		s = strings.Trim(s, " ")
		s = strings.Trim(s, "\n")
		sInt, err := strconv.ParseFloat(s, 64)
		if err != nil {
			return playSeconds, err
		}
		playSeconds = float64(hInt)*3600 + float64(mInt)*60 + float64(sInt)
	}
	return
}

func GetMaxTradeCode(tradeCode string) (maxTradeCode string, err error) {
	tradeCode = strings.Replace(tradeCode, "W", "", -1)
	tradeCode = strings.Trim(tradeCode, " ")
	tradeCodeInt, err := strconv.Atoi(tradeCode)
	if err != nil {
		return
	}
	tradeCodeInt = tradeCodeInt + 1
	maxTradeCode = fmt.Sprintf("W%06d", tradeCodeInt)
	return
}

// excel日期字段格式化 yyyy-mm-dd
func ConvertToFormatDay(excelDaysString string) string {
	// 2006-01-02 距离 1900-01-01的天数
	baseDiffDay := 38719 //在网上工具计算的天数需要加2天，什么原因没弄清楚
	curDiffDay := excelDaysString
	b, _ := strconv.Atoi(curDiffDay)
	// 获取excel的日期距离2006-01-02的天数
	realDiffDay := b - baseDiffDay
	//fmt.Println("realDiffDay:",realDiffDay)
	// 距离2006-01-02 秒数
	realDiffSecond := realDiffDay * 24 * 3600
	//fmt.Println("realDiffSecond:",realDiffSecond)
	// 2006-01-02 15:04:05距离1970-01-01 08:00:00的秒数 网上工具可查出
	baseOriginSecond := 1136185445
	resultTime := time.Unix(int64(baseOriginSecond+realDiffSecond), 0).Format("2006-01-02")
	return resultTime
}

func CheckPwd(pwd string) bool {
	compile := `([0-9a-z]+){6,12}|(a-z0-9]+){6,12}`
	reg := regexp.MustCompile(compile)
	flag := reg.MatchString(pwd)
	return flag
}

func GetMonthStartAndEnd(myYear string, myMonth string) (startDate, endDate string) {
	// 数字月份必须前置补零
	if len(myMonth) == 1 {
		myMonth = "0" + myMonth
	}
	yInt, _ := strconv.Atoi(myYear)

	timeLayout := "2006-01-02 15:04:05"
	loc, _ := time.LoadLocation("Local")
	theTime, _ := time.ParseInLocation(timeLayout, myYear+"-"+myMonth+"-01 00:00:00", loc)
	newMonth := theTime.Month()

	t1 := time.Date(yInt, newMonth, 1, 0, 0, 0, 0, time.Local).Format("2006-01-02")
	t2 := time.Date(yInt, newMonth+1, 0, 0, 0, 0, 0, time.Local).Format("2006-01-02")
	return t1, t2
}

// 移除字符串中的空格
func TrimStr(str string) (str2 string) {
	if str == "" {
		return str
	}
	return strings.Replace(str, " ", "", -1)
}

// 字符串转换为time
func StrTimeToTime(strTime string) time.Time {
	timeLayout := "2006-01-02 15:04:05"  //转化所需模板
	loc, _ := time.LoadLocation("Local") //重要：获取时区
	resultTime, _ := time.ParseInLocation(timeLayout, strTime, loc)
	return resultTime
}

// 字符串类型时间转周几
func StrDateTimeToWeek(strTime string) string {
	var WeekDayMap = map[string]string{
		"Monday":    "周一",
		"Tuesday":   "周二",
		"Wednesday": "周三",
		"Thursday":  "周四",
		"Friday":    "周五",
		"Saturday":  "周六",
		"Sunday":    "周日",
	}
	var ctime = StrTimeToTime(strTime).Format("2006-01-02")
	startday, _ := time.ParseInLocation("2006-01-02", ctime, time.Local)
	staweek_int := startday.Weekday().String()
	return WeekDayMap[staweek_int]
}

// 时间格式转年月日字符串
func TimeToStrYmd(time2 time.Time) string {
	var Ymd string
	year := time2.Year()
	month := time2.Format("1")
	day1 := time.Now().Day()
	Ymd = strconv.Itoa(year) + "年" + month + "月" + strconv.Itoa(day1) + "日"
	return Ymd
}

// 时间格式去掉时分秒
func TimeRemoveHms(strTime string) string {
	var Ymd string
	var resultTime = StrTimeToTime(strTime)
	year := resultTime.Year()
	month := resultTime.Format("01")
	day1 := resultTime.Day()
	Ymd = strconv.Itoa(year) + "." + month + "." + strconv.Itoa(day1)
	return Ymd
}

// 时间格式去掉时分秒
func TimeRemoveHms2(strTime string) string {
	var Ymd string
	var resultTime = StrTimeToTime(strTime)
	year := resultTime.Year()
	month := resultTime.Format("01")
	day1 := resultTime.Day()
	Ymd = strconv.Itoa(year) + "-" + month + "-" + strconv.Itoa(day1)
	return Ymd
}

// 文章上一次编辑时间
func ArticleLastTime(strTime string) string {
	var newTime string
	stamp, _ := time.ParseInLocation("2006-01-02 15:04:05", strTime, time.Local)
	diffTime := time.Now().Unix() - stamp.Unix()
	if diffTime <= 60 {
		newTime = "当前"
	} else if diffTime < 60*60 {
		newTime = strconv.FormatInt(diffTime/60, 10) + "分钟前"
	} else if diffTime < 24*60*60 {
		newTime = strconv.FormatInt(diffTime/(60*60), 10) + "小时前"
	} else if diffTime < 30*24*60*60 {
		newTime = strconv.FormatInt(diffTime/(24*60*60), 10) + "天前"
	} else if diffTime < 12*30*24*60*60 {
		newTime = strconv.FormatInt(diffTime/(30*24*60*60), 10) + "月前"
	} else {
		newTime = "1年前"
	}
	return newTime
}

// 人民币小写转大写
func ConvertNumToCny(num float64) (str string, err error) {
	strNum := strconv.FormatFloat(num*100, 'f', 0, 64)
	sliceUnit := []string{"仟", "佰", "拾", "亿", "仟", "佰", "拾", "万", "仟", "佰", "拾", "元", "角", "分"}
	// log.Println(sliceUnit[:len(sliceUnit)-2])
	s := sliceUnit[len(sliceUnit)-len(strNum):]
	upperDigitUnit := map[string]string{"0": "零", "1": "壹", "2": "贰", "3": "叁", "4": "肆", "5": "伍", "6": "陆", "7": "柒", "8": "捌", "9": "玖"}
	for k, v := range strNum[:] {
		str = str + upperDigitUnit[string(v)] + s[k]
	}
	reg, err := regexp.Compile(`零角零分$`)
	str = reg.ReplaceAllString(str, "整")

	reg, err = regexp.Compile(`零角`)
	str = reg.ReplaceAllString(str, "零")

	reg, err = regexp.Compile(`零分$`)
	str = reg.ReplaceAllString(str, "整")

	reg, err = regexp.Compile(`零[仟佰拾]`)
	str = reg.ReplaceAllString(str, "零")

	reg, err = regexp.Compile(`零{2,}`)
	str = reg.ReplaceAllString(str, "零")

	reg, err = regexp.Compile(`零亿`)
	str = reg.ReplaceAllString(str, "亿")

	reg, err = regexp.Compile(`零万`)
	str = reg.ReplaceAllString(str, "万")

	reg, err = regexp.Compile(`零*元`)
	str = reg.ReplaceAllString(str, "元")

	reg, err = regexp.Compile(`亿零{0, 3}万`)
	str = reg.ReplaceAllString(str, "^元")

	reg, err = regexp.Compile(`零元`)
	str = reg.ReplaceAllString(str, "零")
	return
}

// GetNowWeekMonday 获取本周周一的时间
func GetNowWeekMonday() time.Time {
	offset := int(time.Monday - time.Now().Weekday())
	if offset == 1 { //正好是周日，但是按照中国人的理解，周日是一周最后一天，而不是一周开始的第一天
		offset = -6
	}
	mondayTime := time.Now().AddDate(0, 0, offset)
	mondayTime = time.Date(mondayTime.Year(), mondayTime.Month(), mondayTime.Day(), 0, 0, 0, 0, mondayTime.Location())
	return mondayTime
}

// GetNowWeekLastDay 获取本周最后一天的时间
func GetNowWeekLastDay() time.Time {
	offset := int(time.Monday - time.Now().Weekday())
	if offset == 1 { //正好是周日，但是按照中国人的理解，周日是一周最后一天，而不是一周开始的第一天
		offset = -6
	}
	firstDayTime := time.Now().AddDate(0, 0, offset)
	firstDayTime = time.Date(firstDayTime.Year(), firstDayTime.Month(), firstDayTime.Day(), 0, 0, 0, 0, firstDayTime.Location()).AddDate(0, 0, 6)
	lastDayTime := time.Date(firstDayTime.Year(), firstDayTime.Month(), firstDayTime.Day(), 23, 59, 59, 0, firstDayTime.Location())

	return lastDayTime
}

// GetNowMonthFirstDay 获取本月第一天的时间
func GetNowMonthFirstDay() time.Time {
	nowMonthFirstDay := time.Date(time.Now().Year(), time.Now().Month(), 1, 0, 0, 0, 0, time.Now().Location())
	return nowMonthFirstDay
}

// GetNowMonthLastDay 获取本月最后一天的时间
func GetNowMonthLastDay() time.Time {
	nowMonthLastDay := time.Date(time.Now().Year(), time.Now().Month(), 1, 0, 0, 0, 0, time.Now().Location()).AddDate(0, 1, -1)
	nowMonthLastDay = time.Date(nowMonthLastDay.Year(), nowMonthLastDay.Month(), nowMonthLastDay.Day(), 23, 59, 59, 0, nowMonthLastDay.Location())
	return nowMonthLastDay
}

// GetNowQuarterFirstDay 获取本季度第一天的时间
func GetNowQuarterFirstDay() time.Time {
	month := int(time.Now().Month())
	var nowQuarterFirstDay time.Time
	if month >= 1 && month <= 3 {
		//1月1号
		nowQuarterFirstDay = time.Date(time.Now().Year(), 1, 1, 0, 0, 0, 0, time.Now().Location())
	} else if month >= 4 && month <= 6 {
		//4月1号
		nowQuarterFirstDay = time.Date(time.Now().Year(), 4, 1, 0, 0, 0, 0, time.Now().Location())
	} else if month >= 7 && month <= 9 {
		nowQuarterFirstDay = time.Date(time.Now().Year(), 7, 1, 0, 0, 0, 0, time.Now().Location())
	} else {
		nowQuarterFirstDay = time.Date(time.Now().Year(), 10, 1, 0, 0, 0, 0, time.Now().Location())
	}
	return nowQuarterFirstDay
}

// GetNowQuarterLastDay 获取本季度最后一天的时间
func GetNowQuarterLastDay() time.Time {
	month := int(time.Now().Month())
	var nowQuarterLastDay time.Time
	if month >= 1 && month <= 3 {
		//03-31 23:59:59
		nowQuarterLastDay = time.Date(time.Now().Year(), 3, 31, 23, 59, 59, 0, time.Now().Location())
	} else if month >= 4 && month <= 6 {
		//06-30 23:59:59
		nowQuarterLastDay = time.Date(time.Now().Year(), 6, 30, 23, 59, 59, 0, time.Now().Location())
	} else if month >= 7 && month <= 9 {
		//09-30 23:59:59
		nowQuarterLastDay = time.Date(time.Now().Year(), 9, 30, 23, 59, 59, 0, time.Now().Location())
	} else {
		//12-31 23:59:59
		nowQuarterLastDay = time.Date(time.Now().Year(), 12, 31, 23, 59, 59, 0, time.Now().Location())
	}
	return nowQuarterLastDay
}

// GetNowHalfYearFirstDay 获取当前半年的第一天的时间
func GetNowHalfYearFirstDay() time.Time {
	month := int(time.Now().Month())
	var nowHalfYearLastDay time.Time
	if month >= 1 && month <= 6 {
		//03-31 23:59:59
		nowHalfYearLastDay = time.Date(time.Now().Year(), 1, 1, 0, 0, 0, 0, time.Now().Location())
	} else {
		//12-31 23:59:59
		nowHalfYearLastDay = time.Date(time.Now().Year(), 7, 1, 0, 0, 0, 0, time.Now().Location())
	}
	return nowHalfYearLastDay
}

// GetNowHalfYearLastDay 获取当前半年的最后一天的时间
func GetNowHalfYearLastDay() time.Time {
	month := int(time.Now().Month())
	var nowHalfYearLastDay time.Time
	if month >= 1 && month <= 6 {
		//03-31 23:59:59
		nowHalfYearLastDay = time.Date(time.Now().Year(), 6, 30, 23, 59, 59, 0, time.Now().Location())
	} else {
		//12-31 23:59:59
		nowHalfYearLastDay = time.Date(time.Now().Year(), 12, 31, 23, 59, 59, 0, time.Now().Location())
	}
	return nowHalfYearLastDay
}

// GetNowYearFirstDay 获取当前年的最后一天的时间
func GetNowYearFirstDay() time.Time {
	//12-31 23:59:59
	nowYearFirstDay := time.Date(time.Now().Year(), 1, 1, 0, 0, 0, 0, time.Now().Location())
	return nowYearFirstDay
}

// GetNowYearLastDay 获取当前年的最后一天的时间
func GetNowYearLastDay() time.Time {
	//12-31 23:59:59
	nowYearLastDay := time.Date(time.Now().Year(), 12, 31, 23, 59, 59, 0, time.Now().Location())
	return nowYearLastDay
}

// CalculationDate 计算两个日期之间相差n年m月y天

// FormatPrice 格式化展示金额数字（财务金额展示，小数点前，每三位用,隔开）    1,234,567,898.55
func FormatPrice(price float64) (str string) {
	str = decimal.NewFromFloat(price).String()

	length := len(str)
	if length < 4 {
		return str
	}
	arr := strings.Split(str, ".") //用小数点符号分割字符串,为数组接收
	length1 := len(arr[0])
	if length1 < 4 {
		return str
	}
	count := (length1 - 1) / 3
	for i := 0; i < count; i++ {
		arr[0] = arr[0][:length1-(i+1)*3] + "," + arr[0][length1-(i+1)*3:]
	}
	return strings.Join(arr, ".") //将一系列字符串连接为一个字符串，之间用sep来分隔。
}

// getMonthDay 获取某年某月有多少天
func getMonthDay(year, month int) (days int) {
	if month != 2 {
		if month == 4 || month == 6 || month == 9 || month == 11 {
			days = 30

		} else {
			days = 31
		}
	} else {
		if ((year%4) == 0 && (year%100) != 0) || (year%400) == 0 {
			days = 29
		} else {
			days = 28
		}
	}
	return
}

func SaveToFile(content, path string) error {
	f, err := os.Create(path)
	defer f.Close()
	if err != nil {
		return err
	}
	f.Write([]byte(content))
	return nil
}

// HideString 给字段加***（从字符串中间替换，少于需要替换的长度，那么就补全*的长度）
// src 待*字符串
// hideLen 需要加*的长度
func HideString(src string, hideLen int) string {
	if src == "" {
		return src
	}
	str := []rune(src)
	if hideLen == 0 {
		hideLen = 4
	}
	hideStr := ""
	for i := 0; i < hideLen; i++ {
		hideStr += "*"
	}
	strLen := len(str)

	// 字符长度是1
	if strLen == 1 {
		return string(str[:1]) + hideStr
	}
	//字符长度大于1，但是小于等于需要隐藏的字符长度，那么就隐藏中间，保留前后各一位字符
	if strLen <= hideLen+2 {
		return string(str[:1]) + hideStr + string(str[strLen-1:])
	}

	subLen := strLen - hideLen //剩余需要展示的字符长度
	decimal.NewFromFloat(2)
	frontLenDecimal := decimal.NewFromInt(int64(subLen)).Div(decimal.NewFromInt(2)) //前面需要展示的字符的长度
	frontLen := frontLenDecimal.Floor().IntPart()
	return string(str[:frontLen]) + hideStr + string(str[frontLen+int64(hideLen):])
}

// 用户参会时间转换
func GetAttendanceDetailSeconds(secondNum int) string {
	var timeStr string
	if secondNum <= 60 {
		if secondNum < 10 {
			timeStr = "0" + strconv.Itoa(secondNum) + "''"
		} else {
			timeStr = strconv.Itoa(secondNum) + "''"
		}
	} else {
		var remainderStr string
		remainderNum := secondNum % 60
		minuteNum := secondNum / 60
		if remainderNum < 10 {
			remainderStr = "0" + strconv.Itoa(remainderNum) + "''"
		} else {
			remainderStr = strconv.Itoa(remainderNum) + "''"
		}
		if minuteNum < 10 {
			timeStr = "0" + strconv.Itoa(minuteNum) + "'" + remainderStr
		} else {
			timeStr = strconv.Itoa(minuteNum) + "'" + remainderStr
		}
	}
	return timeStr
}

// SubStr 截取字符串（中文）
func SubStr(str string, subLen int) string {
	strRune := []rune(str)
	bodyRuneLen := len(strRune)
	if bodyRuneLen > subLen {
		bodyRuneLen = subLen
	}
	str = string(strRune[:bodyRuneLen])
	return str
}

func GetLocalIP() (ip string, err error) {
	addrs, err := net.InterfaceAddrs()
	if err != nil {
		return
	}
	for _, addr := range addrs {
		ipAddr, ok := addr.(*net.IPNet)
		if !ok {
			continue
		}
		if ipAddr.IP.IsLoopback() {
			continue
		}
		if !ipAddr.IP.IsGlobalUnicast() {
			continue
		}
		return ipAddr.IP.String(), nil
	}
	return
}

func PrintLog(params ...string) {
	_, file, line, ok := runtime.Caller(1)
	fmt.Println(file, line, ok, params)
}

// InArrayByStr php中的in_array（判断String类型的切片中是否存在该string值）
func InArrayByStr(idStrList []string, searchId string) (has bool) {
	for _, id := range idStrList {
		if id == searchId {
			has = true
			return
		}
	}
	return
}

// InArrayByInt php中的in_array（判断Int类型的切片中是否存在该Int值）
func InArrayByInt(idStrList []int, searchId int) (has bool) {
	for _, id := range idStrList {
		if id == searchId {
			has = true
			return
		}
	}
	return
}

// GetOrmInReplace 获取orm的in查询替换?的方法
func GetOrmInReplace(num int) string {
	template := make([]string, num)
	for i := 0; i < num; i++ {
		template[i] = "?"
	}
	return strings.Join(template, ",")
}

// GetTimeSubDay 计算两个时间的自然日期差
func GetTimeSubDay(t1, t2 time.Time) int {
	var day int
	swap := false
	if t1.Unix() > t2.Unix() {
		t1, t2 = t2, t1
		swap = true
	}

	t1_ := t1.Add(time.Duration(t2.Sub(t1).Milliseconds()%86400000) * time.Millisecond)
	day = int(t2.Sub(t1).Hours() / 24)
	// 计算在t1+两个时间的余数之后天数是否有变化
	if t1_.Day() != t1.Day() {
		day += 1
	}

	if swap {
		day = -day
	}

	return day
}

// GetFrequencyEndDay 根据当前时间和频度,获取该频度下最后一天的日期
func GetFrequencyEndDay(currDate time.Time, frequency string) (endDate time.Time) {
	switch frequency {
	case "周度":
		// 如果当前就是最后一天,那么就直接返回本日期就好了
		if currDate.Weekday() == 0 {
			endDate = currDate
		} else {
			endDate = currDate.AddDate(0, 0, 7-int(currDate.Weekday()))
		}
	case "旬度":
		nextDay := currDate.AddDate(0, 0, 1)
		if nextDay.Day() == 1 || currDate.Day() == 10 || currDate.Day() == 20 {
			//如果是每月10、20、最后一天,那么就直接返回本日期就好了
			endDate = currDate
		} else {
			if currDate.Day() < 10 { // 每月10号
				endDate = time.Date(currDate.Year(), currDate.Month(), 10, 0, 0, 0, 0, time.Local)
			} else if currDate.Day() < 20 { // 每月10号
				endDate = time.Date(currDate.Year(), currDate.Month(), 20, 0, 0, 0, 0, time.Local)
			} else {
				// 下旬,多种可能,最大天数可能存在8天,9天,10天,11天,
				tmpNextMonth := currDate.AddDate(0, 0, 13)
				endDate = time.Date(tmpNextMonth.Year(), tmpNextMonth.Month(), 1, 0, 0, 0, 0, time.Local).AddDate(0, 0, -1)
			}
		}
	case "月度":
		nextDay := currDate.AddDate(0, 0, 1)
		if nextDay.Day() == 1 {
			//如果是每月的最后一天,那么就直接返回本日期就好了
			endDate = currDate
		} else {
			endDate = time.Date(nextDay.Year(), nextDay.Month()+1, 1, 0, 0, 0, 0, time.Local).AddDate(0, 0, -1)
		}
	case "季度":
		nextDay := currDate.AddDate(0, 0, 1)
		if (nextDay.Month() == 1 || nextDay.Month() == 4 || nextDay.Month() == 7 || nextDay.Month() == 10) && nextDay.Day() == 1 {
			//如果是每季的最后一天,那么就直接返回本日期就好了
			endDate = currDate
		} else {
			if currDate.Month() < 4 { // 1季度
				endDate = time.Date(currDate.Year(), 3, 31, 0, 0, 0, 0, time.Local)
			} else if currDate.Month() < 7 { // 2季度
				endDate = time.Date(currDate.Year(), 6, 30, 0, 0, 0, 0, time.Local)
			} else if currDate.Month() < 10 { // 3季度
				endDate = time.Date(currDate.Year(), 9, 30, 0, 0, 0, 0, time.Local)
			} else {
				// 4季度
				endDate = time.Date(currDate.Year(), 12, 31, 0, 0, 0, 0, time.Local)
			}
		}
	case "年度":
		endDate = time.Date(currDate.Year(), 12, 31, 0, 0, 0, 0, time.Local)
	default:
		endDate = currDate
		return
	}

	return
}

// CheckFrequency 获取两个频度之间是否相对低高频
// 大于0，代表左侧是高频(例：左侧：日度，右侧：周度）
// 等于0，代表同频
// 小于0，代表右侧是高频(例：左侧：周度，右侧：日度）
func CheckFrequency(leftFrequency, rightFrequency string) int {
	frequencyMap := map[string]int{
		"年度":  0,
		"半年度": 1,
		"季度":  2,
		"月度":  3,
		"旬度":  4,
		"周度":  5,
		"日度":  6,
	}

	return frequencyMap[leftFrequency] - frequencyMap[rightFrequency]
}

// 将下划线命名转为驼峰命名
func SnakeToCamel(s string) string {
	var result string
	upper := true
	for _, c := range s {
		if c == '_' {
			upper = true
			continue
		}
		if upper {
			result += string(unicode.ToUpper(c))
			upper = false
		} else {
			result += string(c)
		}
	}
	return result
}

// 将驼峰命名转为下划线命名
func CamelToSnake(s string) string {
	var result string
	for i, c := range s {
		if unicode.IsUpper(c) {
			if i > 0 {
				result += "_"
			}
			result += string(unicode.ToLower(c))
		} else {
			result += string(c)
		}
	}
	return result
}

func TimeTransferString(format string, t time.Time) string {
	str := t.Format(format)
	if t.IsZero() {
		return ""
	}
	return str
}

// GetEdbRefreshStartDate
// @Description: 获取开始刷新时间
// @author: Roc
// @datetime 2024-02-05 11:23:55
// @param startDate string
// @return string
func GetEdbRefreshStartDate(startDate string) string {
	// 没有传入日期，或者日期异常的话，那么就是从1990-01-01开始
	if startDate == `` || strings.Contains(startDate, "0000-") {
		return "1990-01-01"
	}

	return startDate
}

// GetEdbRefreshEndDate
// @Description: 获取结束刷新时间
// @author: Roc
// @datetime 2024-02-05 11:23:55
// @param startDate string
// @return string
func GetEdbRefreshEndDate(endDate string) string {
	// 没有传入日期，或者日期异常的话，那么就是从1990-01-01开始
	if endDate == `` || strings.Contains(endDate, "0000-") {
		return time.Now().Format(FormatDate)
	}

	return endDate
}

func DealExcelDate(date string) (newDate time.Time, err error) {
	/*newDate, err = dateparse.ParseAny(date)
	if err != nil {
		return
	}

	newDate = time.Date(newDate.Year(), newDate.Month(), newDate.Day(), 0, 0, 0, 0, time.Local)*/
	if strings.Contains(date, "/") {
		newDate, err = time.ParseInLocation("2006/01/02", date, time.Local)
		return
	} else {
		newDate, err = time.ParseInLocation(FormatDate, date, time.Local)
		return
	}
	return
}

// FloatAlmostEqual 判断两个浮点数是否相等
func FloatAlmostEqual(a, b float64) bool {
	epsilon := 1e-9 // 容差值
	return math.Abs(a-b) <= epsilon
}

// VerifyFrequency
// @Description: 校验频度是否合规
// @author: Roc
// @datetime 2024-04-26 13:30:22
// @param frequency string 待校验的频度
// @return bool
func VerifyFrequency(frequency string) bool {
	return InArrayByStr([]string{"年度", "半年度", "季度", "月度", "旬度", "周度", "日度"}, frequency)
}

// DateConvMysqlConvMongo
// @Description: 将mysql中的日期比较符转换成mongo中的日期比较符
// @author: Roc
// @datetime 2024-05-08 11:03:26
// @param dateCon string
func DateConvMysqlConvMongo(dateCon string) string {
	cond := ""
	switch dateCon {
	case "=":
		cond = "$eq"
	case "<":
		cond = "$lt"
	case "<=":
		cond = "$lte"
	case ">":
		cond = "$gt"
	case ">=":
		cond = "$gte"
	}
	return cond
}

// GenerateEdbCodeMap 当前已经生成的指标编码map（暂时不做定时数据清理了，因为数据不大，我们至少每个月会重启一次，所以暂时不做定时数据清理）
var GenerateEdbCodeMap = map[string]bool{}

// GenerateEdbCode
// @Description:  生成指标编码
// @author: Roc
// @datetime 2024-06-05 09:49:53
// @param num int
// @param pre string 前缀
// @return edbCode string
// @return err error
func GenerateEdbCode(num int, pre string) (edbCode string, err error) {
	if num >= 10 {
		err = errors.New("指标编码生成失败，请重新生成")
		return
	}

	// 4位随机数
	randStr := GetRandDigit(4)
	// 年月日时分秒+4位随机数
	edbCode = `C` + pre + time.Now().Format(FormatShortDateTimeUnSpace) + randStr

	if _, ok := GenerateEdbCodeMap[edbCode]; ok {
		num++
		edbCode, err = GenerateEdbCode(num, pre)
	}

	GenerateEdbCodeMap[edbCode] = true

	return
}

// InsertStr2StrIdx 可分隔的字符串中插入指定字符串, 例如: CO1 Comdty插入V => CO1 V Comdty
func InsertStr2StrIdx(str, sep string, idx int, value string) string {
	str = strings.TrimSpace(str)
	// 默认以空格作为分隔符
	if sep == "" {
		sep = " "
	}
	slice := strings.Split(str, sep)
	if len(slice) < 2 {
		return str
	}

	// 如果idx不在切片的有效范围内，直接返回原字符串
	if idx < 0 || idx > len(slice) {
		return str
	}

	slice = append(slice[:idx], append([]string{value}, slice[idx:]...)...)
	return strings.Join(slice, sep)
}

// FormatFloatPlaces 格式化浮点数位数
func FormatFloatPlaces(val float64, places int32) (newVal float64, err error) {
	if places <= 0 {
		places = 4
	}
	strNewVal := decimal.NewFromFloat(val).Round(places).String()
	di, e := decimal.NewFromString(strNewVal)
	if e != nil {
		err = fmt.Errorf("NewFromString err: %v", e)
		return
	}
	newVal, _ = di.Float64()
	return
}

// handleSystemAppointDateT
// @Description: 处理系统日期相关的指定频率（所在周/旬/月/季/半年/年的最后/最早一天）
// @author: Roc
// @datetime2023-10-27 09:31:35
// @param Frequency string
// @param Day string
// @return date string
// @return err error
// @return errMsg string
func HandleSystemAppointDateT(currDate time.Time, appointDay, frequency string) (date string, err error, errMsg string) {
	//currDate := time.Now()
	switch frequency {
	case "本周":
		day := int(currDate.Weekday())
		if day == 0 { // 周日
			day = 7
		}
		num := 0
		switch appointDay {
		case "周一":
			num = 1
		case "周二":
			num = 2
		case "周三":
			num = 3
		case "周四":
			num = 4
		case "周五":
			num = 5
		case "周六":
			num = 6
		case "周日":
			num = 7
		}
		day = num - day
		date = currDate.AddDate(0, 0, day).Format(FormatDate)
	case "本旬":
		day := currDate.Day()
		var tmpDate time.Time
		switch appointDay {
		case "第一天":
			if day <= 10 {
				tmpDate = time.Date(currDate.Year(), currDate.Month(), 1, 0, 0, 0, 0, currDate.Location())
			} else if day <= 20 {
				tmpDate = time.Date(currDate.Year(), currDate.Month(), 11, 0, 0, 0, 0, currDate.Location())
			} else {
				tmpDate = time.Date(currDate.Year(), currDate.Month(), 21, 0, 0, 0, 0, currDate.Location())
			}
		case "最后一天":
			if day <= 10 {
				tmpDate = time.Date(currDate.Year(), currDate.Month(), 10, 0, 0, 0, 0, currDate.Location())
			} else if day <= 20 {
				tmpDate = time.Date(currDate.Year(), currDate.Month(), 20, 0, 0, 0, 0, currDate.Location())
			} else {
				tmpDate = time.Date(currDate.Year(), currDate.Month()+1, 1, 0, 0, 0, 0, currDate.Location()).AddDate(0, 0, -1)
			}
		}
		date = tmpDate.Format(FormatDate)
	case "本月":
		var tmpDate time.Time
		switch appointDay {
		case "第一天":
			tmpDate = time.Date(currDate.Year(), currDate.Month(), 1, 0, 0, 0, 0, currDate.Location())
		case "最后一天":
			tmpDate = time.Date(currDate.Year(), currDate.Month()+1, 1, 0, 0, 0, 0, currDate.Location()).AddDate(0, 0, -1)
		}
		date = tmpDate.Format(FormatDate)
	case "本季":
		month := currDate.Month()
		var tmpDate time.Time
		switch appointDay {
		case "第一天":
			if month <= 3 {
				tmpDate = time.Date(currDate.Year(), 1, 1, 0, 0, 0, 0, currDate.Location())
			} else if month <= 6 {
				tmpDate = time.Date(currDate.Year(), 4, 1, 0, 0, 0, 0, currDate.Location())
			} else if month <= 9 {
				tmpDate = time.Date(currDate.Year(), 7, 1, 0, 0, 0, 0, currDate.Location())
			} else {
				tmpDate = time.Date(currDate.Year(), 10, 1, 0, 0, 0, 0, currDate.Location())
			}
		case "最后一天":
			if month <= 3 {
				tmpDate = time.Date(currDate.Year(), 3, 31, 0, 0, 0, 0, currDate.Location())
			} else if month <= 6 {
				tmpDate = time.Date(currDate.Year(), 6, 30, 0, 0, 0, 0, currDate.Location())
			} else if month <= 9 {
				tmpDate = time.Date(currDate.Year(), 9, 30, 0, 0, 0, 0, currDate.Location())
			} else {
				tmpDate = time.Date(currDate.Year(), 12, 31, 0, 0, 0, 0, currDate.Location())
			}
		}
		date = tmpDate.Format(FormatDate)
	case "本半年":
		month := currDate.Month()
		var tmpDate time.Time
		switch appointDay {
		case "第一天":
			if month <= 6 {
				tmpDate = time.Date(currDate.Year(), 1, 1, 0, 0, 0, 0, currDate.Location())
			} else {
				tmpDate = time.Date(currDate.Year(), 7, 1, 0, 0, 0, 0, currDate.Location())
			}
		case "最后一天":
			if month <= 6 {
				tmpDate = time.Date(currDate.Year(), 6, 30, 0, 0, 0, 0, currDate.Location())
			} else {
				tmpDate = time.Date(currDate.Year(), 12, 31, 0, 0, 0, 0, currDate.Location())
			}
		}
		date = tmpDate.Format(FormatDate)
	case "本年":
		var tmpDate time.Time
		switch appointDay {
		case "第一天":
			tmpDate = time.Date(currDate.Year(), 1, 1, 0, 0, 0, 0, currDate.Location())
		case "最后一天":
			tmpDate = time.Date(currDate.Year(), 12, 31, 0, 0, 0, 0, currDate.Location())
		}
		date = tmpDate.Format(FormatDate)
	default:
		errMsg = "错误的日期频度：" + frequency
		err = errors.New(errMsg)
		return
	}

	return
}

func CompareFloatByOpStrings(op string, a, b float64) bool {
	switch op {
	case "=":
		return a == b
	case ">":
		return a > b
	case ">=":
		return a >= b
	case "<=":
		return a <= b
	case "<":
		return a < b
	}
	return false
}

// IsDivideZero
// @Description: 判断是否分母为0的bug
// @author: Roc
// @datetime 2024-08-23 11:21:25
// @param err error
// @return bool
func IsDivideZero(err error) bool {
	if err == nil {
		return false
	}
	//if strings.Contains(err.Error(), "divide by zero") {
	//	return true
	//}
	if strings.Contains(err.Error(), "division by zero") {
		return true
	}
	return false
}

// GetTradingDays 获取开始时间至结束时间之间的交易日期(日度)
func GetTradingDays(startDate, endDate time.Time) []time.Time {
	var tradingDays []time.Time
	for curr := startDate; !curr.After(endDate); curr = curr.AddDate(0, 0, 1) {
		if curr.Weekday() >= time.Monday && curr.Weekday() <= time.Friday {
			tradingDays = append(tradingDays, curr)
		}
	}
	return tradingDays
}

// CalculateTradingDays 计算天数 跳过周末
func CalculateTradingDays(baseDate time.Time, tradingDays int, resultMap map[string]float64, moveType int) int {
	oldDate := baseDate

	// Move to the next day
	var moveDays int
	if moveType != 2 {
		moveDays = tradingDays
	} else {
		moveDays = -tradingDays
	}

	daysMoved := 0 // 实际移动的工作日数
	for daysMoved < tradingDays {
		// 根据 moveType，决定是前进一天还是后退一天
		if moveDays > 0 {
			baseDate = baseDate.AddDate(0, 0, 1) // 向后移动一天
		} else {
			baseDate = baseDate.AddDate(0, 0, -1) // 向前移动一天
		}

		// 如果当前日期不是周六或周日，则计入交易日
		weekday := baseDate.Weekday()
		if weekday != time.Saturday && weekday != time.Sunday {
			daysMoved++
		}
	}

	// 计算实际天数差（包含跳过周末后的移动天数）
	subDays := baseDate.Sub(oldDate)
	days := int(math.Abs(subDays.Hours() / 24))

	return days
}

// getLastDayOfMonth 获取某个月的最后一天
func getLastDayOfMonth(t time.Time) time.Time {
	// 移动到下个月的第一天，然后回退一天得到当前月的最后一天
	return time.Date(t.Year(), t.Month(), 1, 0, 0, 0, 0, t.Location()).AddDate(0, 1, -1)
}

// 获取某年某月的天数
func daysInMonth(year int, month time.Month) int {
	if month == time.February {
		// 闰年处理
		if (year%4 == 0 && year%100 != 0) || (year%400 == 0) {
			return 29
		}
		return 28
	}
	if month == time.April || month == time.June || month == time.September || month == time.November {
		return 30
	}
	return 31
}

// CalculateEndOfMonth 使用天数计算未来月末的天数差
/*func CalculateEndOfMonth(baseDate time.Time, months, moveType int) int {
	// 假设每个月28天，然后算到目标月的下个月
	var daysToAdd int
	// 计算目标月的下个月月初
	if moveType == 2 {
		daysToAdd = -(28 * months)
	} else {
		daysToAdd = 28 * (months + 2)
	}
	nextMonth := baseDate.AddDate(0, 0, daysToAdd)

	// 获取目标月月初的第一天
	firstDayOfNextMonth := time.Date(nextMonth.Year(), nextMonth.Month(), 1, 0, 0, 0, 0, nextMonth.Location())

	// 获取目标月的最后一天（即月初减去1天）
	lastDayOfTargetMonth := firstDayOfNextMonth.AddDate(0, 0, -1)

	// 计算天数差
	daysDifference := int(math.Abs(lastDayOfTargetMonth.Sub(baseDate).Hours() / 24))

	return daysDifference
}*/

// CalculateEndOfMonth 计算从 baseDate 开始经过 months 后目标月的最后一天距离 baseDate 的天数差
func CalculateEndOfMonth(baseDate time.Time, months, moveType int) int {
	// 初始化目标日期为当前日期
	targetDate := baseDate

	// 如果 moveType == 2，表示倒退月份；否则为前进月份
	if moveType == 2 {
		months = -months
	}

	// 手动通过天数加减月份
	for i := 0; i < int(math.Abs(float64(months))); i++ {
		// 首先将日期调整到当前月份的第一天
		targetDate = time.Date(targetDate.Year(), targetDate.Month(), 1, 0, 0, 0, 0, targetDate.Location())

		// 根据 moveType 来前进或倒退到下一个月的第一天
		if months > 0 {
			// 前进到下一个月的第一天
			targetDate = targetDate.AddDate(0, 1, 0)
		} else {
			// 倒退到上一个月的第一天
			targetDate = targetDate.AddDate(0, -1, 0)
		}

		// 如果是倒退，调整为目标月的最后一天
		if months < 0 {
			daysInCurrentMonth := daysInMonth(targetDate.Year(), targetDate.Month())
			targetDate = time.Date(targetDate.Year(), targetDate.Month(), daysInCurrentMonth, 0, 0, 0, 0, targetDate.Location())
		}
	}

	// 获取目标月的下个月月初第一天
	firstDayOfNextMonth := time.Date(targetDate.Year(), targetDate.Month()+1, 1, 0, 0, 0, 0, targetDate.Location())

	// 获取目标月的最后一天（即下个月月初减去一天）
	lastDayOfTargetMonth := firstDayOfNextMonth.AddDate(0, 0, -1)

	// 计算天数差
	daysDifference := int(math.Abs(lastDayOfTargetMonth.Sub(baseDate).Hours() / 24))

	return daysDifference
}

// CalculateDekadTime 计算旬度时间
func CalculateDekadTime(baseDate time.Time, tradingDays, moveType int) int {
	// 记录原始日期
	oldDate := baseDate

	// 计算移动的旬数，1 旬为 10 天
	var moveDekads int
	if moveType != 2 {
		moveDekads = tradingDays
	} else {
		moveDekads = -tradingDays
	}

	// 移动的天数为旬数 * 10，初步移动日期
	baseDate = baseDate.AddDate(0, 0, moveDekads*10)

	// 调整日期到最近的旬：10号、20号或月末
	baseDate = adjustToNearestDekad(baseDate)

	// 计算时间差
	subDays := baseDate.Sub(oldDate)
	days := int(math.Abs(subDays.Hours() / 24))

	fmt.Printf("最终日期: %s, 总天数差: %d 天\n", baseDate.Format("2006-01-02"), days)

	return days
}

// adjustToNearestDekad 调整日期到最近的旬
func adjustToNearestDekad(date time.Time) time.Time {
	day := date.Day()
	lastDayOfMonth := getLastDayOfMonth(date).Day()

	// 这里有些无可奈何了，暂时这么写吧。。。需要跟据润 平年根据每个月进行单独处理
	if day < 5 {
		dateOneMonthAgo := date.AddDate(0, -1, 0)
		lastDayOfMonth2 := getLastDayOfMonth(dateOneMonthAgo).Day()
		return time.Date(date.Year(), date.Month()-1, lastDayOfMonth2, 0, 0, 0, 0, date.Location())
	} else if day > 5 && day <= 15 {
		return time.Date(date.Year(), date.Month(), 10, 0, 0, 0, 0, date.Location())
	} else if day > 11 && day <= 25 {
		return time.Date(date.Year(), date.Month(), 20, 0, 0, 0, 0, date.Location())
	} else {
		return time.Date(date.Year(), date.Month(), lastDayOfMonth, 0, 0, 0, 0, date.Location())
	}
}

/*// getLastDayOfMonth 返回指定日期所在月份的最后一天
func getLastDayOfMonth(date time.Time) time.Time {
	// 获取下个月的第一天
	nextMonth := date.AddDate(0, 1, -date.Day()+1)
	// 下个月第一天减去一天即为当前月的最后一天
	lastDay := nextMonth.AddDate(0, 0, -1)
	return lastDay
}*/

// CalculateEndOfQuarter 计算从当前到未来的季度末的天数差
func CalculateEndOfQuarter(baseDate time.Time, quarters, moveType int) int {
	// Move forward `quarters` quarters (3 months per quarter)
	return CalculateEndOfMonth(baseDate, quarters*3, moveType)
}

// CalculateEndOfYear 计算从当前到未来的年末的天数差
func CalculateEndOfYear(baseDate time.Time, years, moveType int) int {
	// Move forward `years` years
	return CalculateEndOfMonth(baseDate, years*12, moveType)
}

// CalculateEndOfHalfYear 计算从当前到未来的半年的天数差
func CalculateEndOfHalfYear(baseDate time.Time, years, moveType int) int {
	// Move forward `half years` years
	return CalculateEndOfMonth(baseDate, years*6, moveType)
}

// GetCurrentTime 获取当前时间 格式为 2024-08-07 15:29:58
func GetCurrentTime() string {
	return time.Now().Format("2006-01-02 15:04:05")
}

// ReverseTimeSlice 反转时间类型切片
func ReverseTimeSlice(s []time.Time) []time.Time {
	for i, j := 0, len(s)-1; i < j; i, j = i+1, j-1 {
		s[i], s[j] = s[j], s[i]
	}
	return s
}