export class TimeFormatter {
  static nowDuration = 30

  static convertGMTtoOffset(gmtString) {
    // 提取符号、小时和分钟
    var sign = gmtString.substring(3, 4); // 提取符号 "+" 或 "-"
    var hours = parseInt(gmtString.substring(4, 6)); // 提取小时部分
    var minutes = parseInt(gmtString.substring(6, 8)); // 提取分钟部分

    // 计算偏移量（以分钟为单位）
    var offset = (hours * 60 + minutes) * (sign === '+' ? 1 : -1);

    return offset;
  }

  //把本地时间戳更改为指定时区的时间戳
  static transferTimestamp(timestamp: number, timeZone: string) {
    if (!timeZone || timeZone.length == 0) {
      return timestamp
    }
    var date = new Date(timestamp)

    if (timeZone) {
      var localOffset = date.getTimezoneOffset()
      var targetOffset = localOffset + TimeFormatter.convertGMTtoOffset(timeZone)
      // 计算目标时间值（毫秒数加上偏移量的毫秒数）
      var targetTime = date.getTime() + (targetOffset * 60 * 1000);

      // 创建目标时区的 Date 对象
      var targetDate = new Date(targetTime);
      return targetDate.getTime()
    }
    return timestamp
  }

  //格式化时间
  static formatTimestamp(timestamp: number): string {
    const currentDate = new Date();
    const inputDate = new Date(timestamp);

    // 判断是否是今天
    if (
      inputDate.getDate() === currentDate.getDate() &&
      inputDate.getMonth() === currentDate.getMonth() &&
      inputDate.getFullYear() === currentDate.getFullYear()
    ) {
      return `${TimeFormatter.getTodayUnit()} ${TimeFormatter.formatTime(inputDate)}`;
    }

    // 判断是否是昨天
    const yesterday = new Date();
    yesterday.setDate(currentDate.getDate() - 1);

    if (
      inputDate.getDate() === yesterday.getDate() &&
      inputDate.getMonth() === yesterday.getMonth() &&
      inputDate.getFullYear() === yesterday.getFullYear()
    ) {
      return `${TimeFormatter.getYesterdayUnit()} ${TimeFormatter.formatTime(inputDate)}`;
    }

    // 判断是否是明天
    const tomorrow = new Date();
    tomorrow.setDate(currentDate.getDate() + 1);

    if (
      inputDate.getDate() === tomorrow.getDate() &&
      inputDate.getMonth() === tomorrow.getMonth() &&
      inputDate.getFullYear() === tomorrow.getFullYear()
    ) {
      return `${TimeFormatter.getTomorrowUnit()} ${TimeFormatter.formatTime(inputDate)}`;
    }

    // 返回 YYYY-MM-DD HH:mm
    return `${inputDate.getFullYear()}-${TimeFormatter.formatNumber(inputDate.getMonth() + 1)}-${TimeFormatter.formatNumber(
      inputDate.getDate()
    )} ${TimeFormatter.formatTime(inputDate)}`;
  }

  static dateTimeFormate(timestamp: number) {
    const currentDate = new Date();
    const inputDate = new Date(timestamp);

    // 判断是否是今天
    if (
      inputDate.getDate() === currentDate.getDate() &&
      inputDate.getMonth() === currentDate.getMonth() &&
      inputDate.getFullYear() === currentDate.getFullYear()
    ) {
      // if (global.language == 'en') {
      //   return `${TimeFormatter.padZero(inputDate.getHours())}:${TimeFormatter.padZero(inputDate.getMinutes())} ${TimeFormatter.getTodayUnit()}`
      // }
      return `${TimeFormatter.getTodayUnit()} ${TimeFormatter.padZero(inputDate.getHours())}:${TimeFormatter.padZero(inputDate.getMinutes())}`;
    }

    // 判断是否是昨天
    const yesterday = new Date();
    yesterday.setDate(currentDate.getDate() - 1);

    if (
      inputDate.getDate() === yesterday.getDate() &&
      inputDate.getMonth() === yesterday.getMonth() &&
      inputDate.getFullYear() === yesterday.getFullYear()
    ) {
      // if (global.language == 'en') {
      //   return `${TimeFormatter.padZero(inputDate.getHours())}:${TimeFormatter.padZero(inputDate.getMinutes())} ${TimeFormatter.getYesterdayUnit()}`;
      // }
      return `${TimeFormatter.getYesterdayUnit()} ${TimeFormatter.padZero(inputDate.getHours())}:${TimeFormatter.padZero(inputDate.getMinutes())}`;
    }

    // if (global.language == 'en') {
    //   return `${TimeFormatter.padZero(inputDate.getHours())}:${TimeFormatter.padZero(inputDate.getMinutes())} ${TimeFormatter.getDateAndWeek(timestamp)}`
    // }
    return TimeFormatter.getDateAndWeek(timestamp) + ' ' + `${TimeFormatter.padZero(inputDate.getHours())}:${TimeFormatter.padZero(inputDate.getMinutes())}`

  }

  //显示完整日期
  static timelineFullFormatTime(timestamp: number): string {
    var date = new Date(timestamp)
    var str = `${TimeFormatter.formatNumber(date.getHours())}:${TimeFormatter.formatNumber(date.getMinutes())}`;
    if (global.language == 'en') {
      return `${TimeFormatter.getDayOfWeek(date.getDay())} ${TimeFormatter.getMonth(date.getMonth() + 1)} ${date.getDate()} ${str}`
    }
    return `${TimeFormatter.getMonth(date.getMonth() + 1)}${date.getDate()}日 ${TimeFormatter.getDayOfWeek(date.getDay())} ${str}`
  }


  //只显示时间
  static timelineFormatTime(timestamp: number, isTestUser?: boolean): string {
    if (!timestamp) {
      return '  '
    }
    var date = new Date(timestamp)

    // 返回 HH:mm
    var str = `${TimeFormatter.formatNumber(date.getHours())}:${TimeFormatter.formatNumber(date.getMinutes())}`;
    if (isTestUser) {
      str += `:${TimeFormatter.formatNumber(date.getSeconds())}`
    }
    return str
  }

  //2.基于日期显示日期,省略今天描述
  static dateDescription(timestamp: number, showToday?: boolean, showFullDate?: boolean): string {
    if (!timestamp) {
      return ''
    }
    const currentDate = new Date();
    const inputDate = new Date(timestamp);

    // 判断是否是今天
    if (
      inputDate.getDate() === currentDate.getDate() &&
      inputDate.getMonth() === currentDate.getMonth() &&
      inputDate.getFullYear() === currentDate.getFullYear() &&
      !showFullDate
    ) {
      if (currentDate.getTime() - timestamp <= TimeFormatter.nowDuration * 1000 && currentDate.getTime() - timestamp >= 0) {
        return TimeFormatter.getJustNowUnit()
      }

      return showToday ? TimeFormatter.getTodayUnit() : ``;
    }

    // 判断是否是昨天
    const yesterday = new Date();
    yesterday.setDate(currentDate.getDate() - 1);

    if (
      inputDate.getDate() === yesterday.getDate() &&
      inputDate.getMonth() === yesterday.getMonth() &&
      inputDate.getFullYear() === yesterday.getFullYear() &&
      !showFullDate
    ) {
      return TimeFormatter.getYesterdayUnit();
    }

    // 判断是否是明天
    const tomorrow = new Date();
    tomorrow.setDate(currentDate.getDate() + 1);

    if (
      inputDate.getDate() === tomorrow.getDate() &&
      inputDate.getMonth() === tomorrow.getMonth() &&
      inputDate.getFullYear() === tomorrow.getFullYear() &&
      !showFullDate
    ) {
      return TimeFormatter.getTomorrowUnit();
    }


    const utcDate1 = Date.UTC(currentDate.getFullYear(), currentDate.getMonth(), currentDate.getDate())
    const utcDate2 = Date.UTC(inputDate.getFullYear(), inputDate.getMonth(), inputDate.getDate())
    const oneDayMilliseconds = 24 * 60 * 60 * 1000; // 一天的毫秒数
    var dayDifference = Math.floor((utcDate2 - utcDate1) / oneDayMilliseconds);
    if (dayDifference < 0) {
      var strMonth = TimeFormatter.getMonth(inputDate.getMonth() + 1)
      var strDt = ''
      var strYear = ''
      if (currentDate.getFullYear() != inputDate.getFullYear()) {
        strYear = inputDate.getFullYear() + ''
        strDt = strYear + '年'
      }
      if (global.language == 'en') {
        if (strYear.length > 0) {
          return strMonth + ' ' + inputDate.getDate() + ',' + strYear
        }
        return strMonth + ' ' + inputDate.getDate()
      }
      strDt = strDt + strMonth
      strDt = strDt + (inputDate.getDate()) + '日'
      return strDt
    }
    return `${dayDifference}天后`

    // return `${inputDate.getFullYear()}-${TimeFormatter.formatNumber(inputDate.getMonth() + 1)}-${TimeFormatter.formatNumber(
    //   inputDate.getDate()
    // )}`;
  }

  //3. datedescription+时间，刚刚时隐藏时间
  static datetimeDescription(timestamp: number): string {
    const currentDate = new Date();
    if (currentDate.getTime() - timestamp <= TimeFormatter.nowDuration * 1000) {
      return TimeFormatter.dateDescription(timestamp, true)
    }
    if (global.language == 'en') {
      return TimeFormatter.dateDescription(timestamp, true) + ' ' + TimeFormatter.timeDescription(timestamp)
    }
    return TimeFormatter.dateDescription(timestamp, true) + '' + TimeFormatter.timeDescription(timestamp)
  }

  static timeDescription(timestamp): string {
    const date = new Date(timestamp);
    return `${TimeFormatter.padZero(date.getHours())}:${TimeFormatter.padZero(date.getMinutes())}`;
  }

  static formatTime(date: Date): string {
    return `${TimeFormatter.formatNumber(date.getHours())}:${TimeFormatter.formatNumber(date.getMinutes())}:${TimeFormatter.formatNumber(date.getSeconds())}`;
  }

  static formatNumber(num: number): string {
    return num.toString().padStart(2, '0');
  }
  static getYearByDate(num: number): string {
    if (global.language == 'en') {
      return (num + '').substring(0, 4)
    }
    return (num + '').substring(0, 4) + '年'
  }

  static getMonthAndDayByDate(num: number): string {
    const dt = new Date((num + '').substring(0, 4) + '/' +
      (num + '').substring(4, 6) + '/' +
      (num + '').substring(6));

    const now = new Date();

    const diff = now.getTime() - dt.getTime();
    const day = 1000 * 60 * 60 * 24;

    if (diff < day) {
      return TimeFormatter.getTodayUnit();
    } else if (diff < 2 * day) {
      return TimeFormatter.getYesterdayUnit();
    } else {
      var month = parseInt((num + '').substring(4, 6))
      var date = parseInt((num + '').substring(6, 8))
      if (global.language == 'en') {
        return TimeFormatter.getMonth(month) + ' ' + date
      }
      return TimeFormatter.getMonth(month) + date + '日'
    }
  }

  static getMonthAndDayByTimestamp(num: number, showFullDate?: boolean): string {
    const dt = new Date(num);

    const now = new Date();

    const diff = now.getTime() - dt.getTime();
    const day = 1000 * 60 * 60 * 24;

    if (diff < day && !showFullDate) {
      return TimeFormatter.getTodayUnit();
    } else if (diff < 2 * day && !showFullDate) {
      return TimeFormatter.getYesterdayUnit();
    } else {
      var month = dt.getMonth() + 1
      var date = dt.getDate()
      if (global.language == 'en') {
        return TimeFormatter.getMonth(month) + ' ' + date
      }
      return TimeFormatter.getMonth(month) + date + '日'
    }
  }

  static getTimeByTimestamp(num: number): string {
    const dt = new Date(num);
    var hour = dt.getHours()
    var minute = dt.getMinutes()
    var formateTime = TimeFormatter.padZero(hour) + ':' + TimeFormatter.padZero(minute)
    return formateTime
  }

  //duration 根据起终点时间，忽略精度，如果两个时间点小于60s，则保留精度，否则为分钟
  static durationFormate(startTimestamp: number, endTimestamp: number) {
    var start = startTimestamp;
    var end = endTimestamp;
    const diff = Math.abs(end - start);
    if (diff > 60000) {
      var startTime = new Date(start)
      startTime.setSeconds(0)
      startTime.setMilliseconds(0)
      var endTime = new Date(end)
      endTime.setSeconds(0)
      endTime.setMilliseconds(0)

      start = startTime.getTime()
      end = endTime.getTime()
    }
    return TimeFormatter.calculateTimeDifference(start, end)
  }

  static durationFormate2(startTimestamp: number, endTimestamp: number) {
    var start = startTimestamp;
    var end = endTimestamp;
    const diff = Math.abs(end - start);
    if (diff > 60000) {
      var startTime = new Date(start)
      startTime.setSeconds(0)
      startTime.setMilliseconds(0)
      var endTime = new Date(end)
      endTime.setSeconds(0)
      endTime.setMilliseconds(0)

      start = startTime.getTime()
      end = endTime.getTime()
    }
    return TimeFormatter.calculateTimeDifference(start, end)
  }

  //计算时间间隔
  static calculateTimeDifference(startTimestamp: number, endTimestamp: number, ingoreSeconds?: boolean): string {
    const diff = Math.abs(endTimestamp - startTimestamp);
    // 计算小时、分钟和秒数
    const hours = Math.floor(diff / (1000 * 60 * 60));
    const minutes = Math.floor((diff % (1000 * 60 * 60)) / (1000 * 60));
    const seconds = Math.floor((diff % (1000 * 60)) / 1000);

    // 根据间隔的大小返回不同的格式
    if (diff < 60000) {
      return `${seconds}${TimeFormatter.getSecondsUnit(seconds)}`;
    } else if (diff < 3600000) {
      return `${minutes}${TimeFormatter.getMinutesUnit(minutes)}`;
    } else {
      if (minutes == 0) {
        return `${hours}${TimeFormatter.getHoursUnit(hours)}`;
      }
      return `${hours}${TimeFormatter.getHoursUnit(hours)}${minutes}${TimeFormatter.getMinutesUnit(minutes)}`;
    }
  }
  //格式化时间间隔
  static formateTimeDifference(startTimestamp: number, endTimestamp: number, ingoreSeconds?: boolean): string {
    const diff = Math.abs(endTimestamp - startTimestamp);
    // 计算小时、分钟和秒数
    const hours = Math.floor(diff / (1000 * 60 * 60));
    const minutes = Math.floor((diff % (1000 * 60 * 60)) / (1000 * 60));
    const seconds = Math.floor((diff % (1000 * 60)) / 1000);

    // 根据间隔的大小返回不同的格式
    if (diff < 60000) {
      return `00:00:${TimeFormatter.padZero(seconds)}`;
    } else if (diff < 3600000) {
      return `00:${TimeFormatter.padZero(minutes)}:${TimeFormatter.padZero(seconds)}`;
    } else {
      if (ingoreSeconds) return `${hours}${TimeFormatter.getHoursUnit(hours)}${minutes}${TimeFormatter.getMinutesUnit(minutes)}`;
      return `${TimeFormatter.padZero(hours)}:${TimeFormatter.padZero(minutes)}:${TimeFormatter.padZero(seconds)}`;
    }
  }

  static formateTime(timestamp: number) {
    const date = new Date(timestamp);
    return `${TimeFormatter.padZero(date.getMonth() + 1)}-${TimeFormatter.padZero(date.getDate())} ${TimeFormatter.padZero(date.getHours())}:${TimeFormatter.padZero(date.getMinutes())}:${TimeFormatter.padZero(date.getSeconds())}`;
  }

  static formateHourMinute(startTimestamp: number, endTimestamp: number): string {
    const diff = Math.abs(endTimestamp - startTimestamp);
    // 计算小时、分钟和秒数
    const hours = Math.floor(diff / (1000 * 60 * 60));
    const minutes = Math.floor((diff % (1000 * 60 * 60)) / (1000 * 60));
    return (hours < 10 ? `0${hours}` : `${hours}`) + ':' + (minutes < 10 ? `0${minutes}` : `${minutes}`);
  }

  static countdown = (dt: number, end = Date.now()): string => {
    // const end = Date.now();
    const time = end > dt ? Math.floor((end - dt) / 1000) : Math.ceil((dt - end) / 1000)//Math.ceil((end>dt?end-dt:dt-end)/1000);
    const hours = Math.floor(time / 3600);
    const minutes = Math.floor((time % 3600) / 60);
    const seconds = Math.floor(time % 60);
    return `${TimeFormatter.padZero(hours)}:${TimeFormatter.padZero(minutes)}:${TimeFormatter.padZero(seconds)}`;
  };

  //计算正计时
  static formateTimeNow = (dt: number, end = Date.now()): string => {
    // const end = Date.now();
    const time = Math.floor((end > dt ? end - dt : dt - end) / 1000);
    const hours = Math.floor(time / 3600);
    const minutes = Math.floor((time % 3600) / 60);
    const seconds = Math.floor(time % 60);
    return `${TimeFormatter.padZero(hours)}:${TimeFormatter.padZero(minutes)}:${TimeFormatter.padZero(seconds)}`;
  };



  static workoutTime = (time: number): string => {
    const hours = Math.floor(time / 3600);
    const minutes = Math.floor((time % 3600) / 60);
    const seconds = Math.floor(time % 60);
    return `${TimeFormatter.padZero(hours)}:${TimeFormatter.padZero(minutes)}:${TimeFormatter.padZero(seconds)}`;

  }

  static padZero = (num: number): string => {
    return num.toString().padStart(2, '0');
  };

  //根据时间段和一个时间，推算另外一个时间
  static calculateTimeByTimeRange = (timeRange: number, strTime: string, isStart: boolean): string => {
    console.log(timeRange, strTime, isStart)
    var list = strTime.split(':');
    var time = parseInt(list[0]) * 60 + parseInt(list[1]);
    if (isStart) {
      time = time + timeRange;
    }
    else {
      time = time - timeRange;
    }
    time = time < 0 ? time + 24 * 60 : time;
    time = time >= 24 * 60 ? time - 24 * 60 : time;
    var hour = Math.floor(time / 60);
    var minute = time % 60;
    return `${TimeFormatter.padZero(hour)}:${TimeFormatter.padZero(minute)}`;
  }

  static formateDurationBySeconds = (left: number) => {
    const hours = Math.floor(left / 3600);
    const minutes = Math.floor((left % 3600) / 60);
    const seconds = Math.floor(left % 60);
    var str = ''
    if (hours > 0) {
      str = str + hours + TimeFormatter.getHoursUnit(hours)
    }
    if (minutes > 0) {
      str = str + minutes + TimeFormatter.getMinutesUnit(minutes)
    }
    if (seconds > 0) {
      str = str + seconds + TimeFormatter.getSecondsUnit(seconds)
    }
    return str
  }

  static workoutTimeAndUnitList = (count: number) => {
    const hours = Math.floor(count / 3600);
    const minutes = Math.floor((count % 3600) / 60);
    const seconds = Math.floor(count % 60);
    var values: any = []
    var units: any = []
    if (hours > 0) {
      values.push(hours)
      units.push(TimeFormatter.getHoursUnit(hours))
    }
    if (minutes > 0) {
      values.push(minutes)
      units.push(TimeFormatter.getMinutesUnit(minutes))
    }
    if (seconds > 0) {
      values.push(seconds)
      units.push(TimeFormatter.getSecondsUnit(seconds))
    }

    return {
      values: values,
      units: units
    }
  }

  //获取今天的日期和星期几
  static getDateAndWeek = (timestamp: number, ignore = false) => {
    const now = new Date();
    var dt = new Date(timestamp)
    dt.setSeconds(0)
    dt.setMilliseconds(0)
    dt.setMinutes(0)
    dt.setHours(0)

    const diff = now.getTime() - dt.getTime();
    const day = 1000 * 60 * 60 * 24;

    if (diff < day && !ignore) {
      return TimeFormatter.getTodayUnit();
    } else if (diff < 2 * day && !ignore) {
      return TimeFormatter.getYesterdayUnit();
    } else {
      if (global.language == 'en') {
        return `${TimeFormatter.getDayOfWeek(dt.getDay())} ${TimeFormatter.getMonth(dt.getMonth() + 1)} ${dt.getDate()}`
      }
      return `${TimeFormatter.getMonth(dt.getMonth() + 1)}${dt.getDate()}日 ${TimeFormatter.getDayOfWeek(dt.getDay())}`
    }
  }

  //获取当前时间（hh:mm）
  static getCurrentHourAndMinute = () => {
    var now = new Date()
    // var localOffset = now.getTimezoneOffset()
    // console.log(localOffset)
    // debugger
    return `${TimeFormatter.padZero(now.getHours())}:${TimeFormatter.padZero(now.getMinutes())}`;
  }

  //获取时长单位
  static getSecondsUnit = (seconds, isFull?: boolean) => {
    if (global.language == 'en') {
      if (isFull) {
        return seconds > 1 ? ' seconds ' : ' second '
      }
      return seconds > 1 ? ' secs ' : ' sec '
    }
    return '秒'
  }

  static getMinutesUnit = (minutes, isFull?: boolean) => {
    if (global.language == 'en') {
      if (isFull) {
        return minutes > 1 ? ' minutes ' : ' minute '
      }
      return minutes > 1 ? ' mins ' : ' min '
    }
    return '分钟'
  }

  static getHoursUnit = (hours, isFull?: boolean) => {
    if (global.language == 'en') {
      if (isFull) {
        return hours > 1 ? ' hours ' : ' hour '
      }
      return hours > 1 ? ' hrs ' : ' hr '
    }
    return '小时'
  }

  static getTodayUnit = () => {
    return global.language == 'en' ? 'Today' : '今天'
  }

  static getYesterdayUnit = () => {
    return global.language == 'en' ? 'Yesterday' : '昨天'
  }

  static getTomorrowUnit = () => {
    return global.language == 'en' ? 'Tomorrow' : '明天'
  }

  static getJustNowUnit = () => {
    return global.language == 'en' ? 'Just now' : '刚刚'
  }

  static getDayOfWeek = (index, isFull?: boolean) => {
    var weeks = ['日', '一', '二', '三', '四', '五', '六']
    var weeks2 = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'
    ];
    var weeksFull = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday']

    if (global.language == 'en') {
      if (isFull) {
        return weeksFull[index]
      }
      return weeks2[index]
    }
    return '星期' + weeks[index]

  }

  static getMonth = (index) => {
    const monthNames = [
      'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
      'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'
    ];
    if (global.language == 'en') {
      return monthNames[index - 1]
    }
    return index + '月'
  }

  //获取本周一零点的时间戳
  static getMondayTimestamp = () => {
    const now = new Date();
    const currentDay = now.getDay(); // Get the current day of the week (0 for Sunday, 1 for Monday, etc.)
    const startOfWeek = new Date(now); // Create a new Date object with the current date and time

    // Calculate the difference in milliseconds to the beginning of the week
    const diffToMonday = (currentDay - 1) * 24 * 60 * 60 * 1000; // Subtract 1 day worth of milliseconds for each day after Monday

    startOfWeek.setTime(now.getTime() - diffToMonday); // Set the time to the beginning of the week (Monday at 00:00:00)
    startOfWeek.setHours(0)
    startOfWeek.setMinutes(0)
    startOfWeek.setSeconds(0)
    startOfWeek.setMilliseconds(0)
    const timestamp = startOfWeek.getTime(); // Get the timestamp in milliseconds
    return timestamp
  }

  //hh:mm转换成秒数
  static timestringToSeconds = (strTime: string) => {
    var list = strTime.split(':')
    return parseInt(list[0]) * 3600 + parseInt(list[1]) * 60
  }

}