武大课程表导出为 iCS

导出课表为 ics 格式
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// ==UserScript==
// @name              WHU Schedule Export as iCS Calendar
// @name:zh           武大课程表导出为 iCS
// @name:zh-CN        武大课程表导出为 iCS
// @name:zh-TW        武大課程表匯出為 iCS
// @namespace         https://github.com/Ostrichbeta/WHU-class-schedule-export-ics/raw/main/schedule_export.js
// @version           0.90.2
// @description       Export your timetable as ics format.
// @description:zh-CN 导出课表为 ics 格式
// @description:zh-TW 匯出課表為 ics 格式
// @author            Ostrichbeta Chan
// @license           GPL-3.0
// @match             https://jwgl.whu.edu.cn/kbcx/xskbcx_cxXskbcxIndex.html*
// @icon              data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
// @require           https://code.jquery.com/jquery-3.6.1.min.js
// @require           https://cdn.jsdelivr.net/npm/[email protected]/data.min.js
// @require           https://cdn.jsdelivr.net/npm/[email protected]/data.cn2t.min.js
// @require           https://cdn.jsdelivr.net/npm/[email protected]/bundle-browser.min.js
// @require           https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js
// @grant             none
// @run-at            document-end
// ==/UserScript==

(function() {
  window.jQuery361 = $.noConflict(true); // Avoid the confliction with the original page
  
  /*
  * FileSaver.js
  * A saveAs() FileSaver implementation.
  *
  * By Eli Grey, http://eligrey.com
  *
  * License : https://github.com/eligrey/FileSaver.js/blob/master/LICENSE.md (MIT)
  * source  : http://purl.eligrey.com/github/FileSaver.js
  */
  
  // The one and only way of getting global scope in all environments
  // https://stackoverflow.com/q/3277182/1008999
  var _global = typeof window === 'object' && window.window === window
    ? window : typeof self === 'object' && self.self === self
    ? self : typeof global === 'object' && global.global === global
    ? global
    : this
  
  function bom (blob, opts) {
    if (typeof opts === 'undefined') opts = { autoBom: false }
    else if (typeof opts !== 'object') {
      console.warn('Deprecated: Expected third argument to be a object')
      opts = { autoBom: !opts }
    }
  
    // prepend BOM for UTF-8 XML and text/* types (including HTML)
    // note: your browser will automatically convert UTF-16 U+FEFF to EF BB BF
    if (opts.autoBom && /^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(blob.type)) {
      return new Blob([String.fromCharCode(0xFEFF), blob], { type: blob.type })
    }
    return blob
  }
  
  function download (url, name, opts) {
    var xhr = new XMLHttpRequest()
    xhr.open('GET', url)
    xhr.responseType = 'blob'
    xhr.onload = function () {
      saveAs(xhr.response, name, opts)
    }
    xhr.onerror = function () {
      console.error('could not download file')
    }
    xhr.send()
  }
  
  function corsEnabled (url) {
    var xhr = new XMLHttpRequest()
    // use sync to avoid popup blocker
    xhr.open('HEAD', url, false)
    try {
      xhr.send()
    } catch (e) {}
    return xhr.status >= 200 && xhr.status <= 299
  }
  
  // `a.click()` doesn't work for all browsers (#465)
  function click (node) {
    try {
      node.dispatchEvent(new MouseEvent('click'))
    } catch (e) {
      var evt = document.createEvent('MouseEvents')
      evt.initMouseEvent('click', true, true, window, 0, 0, 0, 80,
                            20, false, false, false, false, 0, null)
      node.dispatchEvent(evt)
    }
  }
  
  var saveAs = _global.saveAs || (
    // probably in some web worker
    (typeof window !== 'object' || window !== _global)
      ? function saveAs () { /* noop */ }
  
    // Use download attribute first if possible (#193 Lumia mobile)
    : 'download' in HTMLAnchorElement.prototype
    ? function saveAs (blob, name, opts) {
      var URL = _global.URL || _global.webkitURL
      var a = document.createElement('a')
      name = name || blob.name || 'download'
  
      a.download = name
      a.rel = 'noopener' // tabnabbing
  
      // TODO: detect chrome extensions & packaged apps
      // a.target = '_blank'
  
      if (typeof blob === 'string') {
        // Support regular links
        a.href = blob
        if (a.origin !== location.origin) {
          corsEnabled(a.href)
            ? download(blob, name, opts)
            : click(a, a.target = '_blank')
        } else {
          click(a)
        }
      } else {
        // Support blobs
        a.href = URL.createObjectURL(blob)
        setTimeout(function () { URL.revokeObjectURL(a.href) }, 4E4) // 40s
        setTimeout(function () { click(a) }, 0)
      }
    }
  
    // Use msSaveOrOpenBlob as a second approach
    : 'msSaveOrOpenBlob' in navigator
    ? function saveAs (blob, name, opts) {
      name = name || blob.name || 'download'
  
      if (typeof blob === 'string') {
        if (corsEnabled(blob)) {
          download(blob, name, opts)
        } else {
          var a = document.createElement('a')
          a.href = blob
          a.target = '_blank'
          setTimeout(function () { click(a) })
        }
      } else {
        navigator.msSaveOrOpenBlob(bom(blob, opts), name)
      }
    }
  
    // Fallback to using FileReader and a popup
    : function saveAs (blob, name, opts, popup) {
      // Open a popup immediately do go around popup blocker
      // Mostly only available on user interaction and the fileReader is async so...
      popup = popup || open('', '_blank')
      if (popup) {
        popup.document.title =
        popup.document.body.innerText = 'downloading...'
      }
  
      if (typeof blob === 'string') return download(blob, name, opts)
  
      var force = blob.type === 'application/octet-stream'
      var isSafari = /constructor/i.test(_global.HTMLElement) || _global.safari
      var isChromeIOS = /CriOS\/[\d]+/.test(navigator.userAgent)
  
      if ((isChromeIOS || (force && isSafari)) && typeof FileReader !== 'undefined') {
        // Safari doesn't allow downloading of blob URLs
        var reader = new FileReader()
        reader.onloadend = function () {
          var url = reader.result
          url = isChromeIOS ? url : url.replace(/^data:[^;]*;/, 'data:attachment/file;')
          if (popup) popup.location.href = url
          else location = url
          popup = null // reverse-tabnabbing #460
        }
        reader.readAsDataURL(blob)
      } else {
        var URL = _global.URL || _global.webkitURL
        var url = URL.createObjectURL(blob)
        if (popup) popup.location = url
        else location.href = url
        popup = null // reverse-tabnabbing #460
        setTimeout(function () { URL.revokeObjectURL(url) }, 4E4) // 40s
      }
    }
  )
  
  _global.saveAs = saveAs.saveAs = saveAs
  
  if (typeof module !== 'undefined') {
    module.exports = saveAs;
  }
  
  /* UUID genertor from https://stackoverflow.com/questions/105034/how-do-i-create-a-guid-uuid */

  function uuidv4() {
    return ([1e7]+-1e3+-4e3+-8e3+-1e11).replace(/[018]/g, c =>
      (c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)
    );
  }

  /* global saveAs, Blob, BlobBuilder, console */
  /* exported ics */
  /* https://github.com/nwcell/ics.js */
  
  var ics = function(uidDomain, prodId) {
    'use strict';
  
    if (navigator.userAgent.indexOf('MSIE') > -1 && navigator.userAgent.indexOf('MSIE 10') == -1) {
      console.log('Unsupported Browser');
      return;
    }
  
    if (typeof uidDomain === 'undefined') { uidDomain = 'default'; }
    if (typeof prodId === 'undefined') { prodId = 'Calendar'; }
  
    var SEPARATOR = (navigator.appVersion.indexOf('Win') !== -1) ? '\r\n' : '\n';
    var calendarEvents = [];
    var calendarStart = [
      'BEGIN:VCALENDAR',
      'PRODID:' + prodId,
      'VERSION:2.0'
    ].join(SEPARATOR);
    var calendarEnd = SEPARATOR + 'END:VCALENDAR';
    var BYDAY_VALUES = ['SU', 'MO', 'TU', 'WE', 'TH', 'FR', 'SA'];
  
    return {
      /**
       * Returns events array
       * @return {array} Events
       */
      'events': function() {
        return calendarEvents;
      },
  
      /**
       * Returns calendar
       * @return {string} Calendar in iCalendar format
       */
      'calendar': function() {
        return calendarStart + SEPARATOR + calendarEvents.join(SEPARATOR) + calendarEnd;
      },
  
      /**
       * Add event to the calendar
       * @param  {string} subject     Subject/Title of event
       * @param  {string} description Description of event
       * @param  {string} location    Location of event
       * @param  {string} begin       Beginning date of event
       * @param  {string} stop        Ending date of event
       */
      'addEvent': function(subject, description, location, begin, stop, rrule, valarm) {
        // I'm not in the mood to make these optional... So they are all required
        if (typeof subject === 'undefined' ||
          typeof description === 'undefined' ||
          typeof location === 'undefined' ||
          typeof begin === 'undefined' ||
          typeof stop === 'undefined'
        ) {
          return false;
        }
  
        // validate rrule
        if (rrule) {
          if (!rrule.rrule) {
            if (rrule.freq !== 'YEARLY' && rrule.freq !== 'MONTHLY' && rrule.freq !== 'WEEKLY' && rrule.freq !== 'DAILY') {
              throw "Recurrence rrule frequency must be provided and be one of the following: 'YEARLY', 'MONTHLY', 'WEEKLY', or 'DAILY'";
            }
  
            if (rrule.until) {
              if (isNaN(Date.parse(rrule.until)) && isNaN(Date.parse(rrule.until.toISOString()))) {
                throw "Recurrence rrule 'until' must be a valid date string";
              }
            }
  
            if (rrule.interval) {
              if (isNaN(parseInt(rrule.interval))) {
                throw "Recurrence rrule 'interval' must be an integer";
              }
            }
  
            if (rrule.count) {
              if (isNaN(parseInt(rrule.count))) {
                throw "Recurrence rrule 'count' must be an integer";
              }
            }
  
            if (typeof rrule.byday !== 'undefined') {
              if ((Object.prototype.toString.call(rrule.byday) !== '[object Array]')) {
                throw "Recurrence rrule 'byday' must be an array";
              }
  
              if (rrule.byday.length > 7) {
                throw "Recurrence rrule 'byday' array must not be longer than the 7 days in a week";
              }
  
              // Filter any possible repeats
              rrule.byday = rrule.byday.filter(function(elem, pos) {
                return rrule.byday.indexOf(elem) == pos;
              });
  
              for (var d in rrule.byday) {
                if (BYDAY_VALUES.indexOf(rrule.byday[d]) < 0) {
                  throw "Recurrence rrule 'byday' values must include only the following: 'SU', 'MO', 'TU', 'WE', 'TH', 'FR', 'SA'";
                }
              }
            }
          }
        }

        // validate valarm
        if (valarm && Object.keys(valarm).length != 0) {
          if (valarm.trigger) {
            if (isNaN(valarm.trigger) || !(typeof valarm.trigger === 'number')) {
              throw "Trigger time must be an integer!"
            }
          }
          if (valarm.description) {
            if (!(typeof valarm.description === 'string')) {
              throw "The description of valarm must be a string!"
            }
          }
        }
  
        //TODO add time and time zone? use moment to format?
        var start_date = new Date(begin);
        var end_date = new Date(stop);
        var now_date = new Date();
  
        var start_year = ("0000" + (start_date.getFullYear().toString())).slice(-4);
        var start_month = ("00" + ((start_date.getMonth() + 1).toString())).slice(-2);
        var start_day = ("00" + ((start_date.getDate()).toString())).slice(-2);
        var start_hours = ("00" + (start_date.getHours().toString())).slice(-2);
        var start_minutes = ("00" + (start_date.getMinutes().toString())).slice(-2);
        var start_seconds = ("00" + (start_date.getSeconds().toString())).slice(-2);
  
        var end_year = ("0000" + (end_date.getFullYear().toString())).slice(-4);
        var end_month = ("00" + ((end_date.getMonth() + 1).toString())).slice(-2);
        var end_day = ("00" + ((end_date.getDate()).toString())).slice(-2);
        var end_hours = ("00" + (end_date.getHours().toString())).slice(-2);
        var end_minutes = ("00" + (end_date.getMinutes().toString())).slice(-2);
        var end_seconds = ("00" + (end_date.getSeconds().toString())).slice(-2);
  
        var now_year = ("0000" + (now_date.getFullYear().toString())).slice(-4);
        var now_month = ("00" + ((now_date.getMonth() + 1).toString())).slice(-2);
        var now_day = ("00" + ((now_date.getDate()).toString())).slice(-2);
        var now_hours = ("00" + (now_date.getHours().toString())).slice(-2);
        var now_minutes = ("00" + (now_date.getMinutes().toString())).slice(-2);
        var now_seconds = ("00" + (now_date.getSeconds().toString())).slice(-2);
  
        // Since some calendars don't add 0 second events, we need to remove time if there is none...
        var start_time = '';
        var end_time = '';
        if (start_hours + start_minutes + start_seconds + end_hours + end_minutes + end_seconds != 0) {
          start_time = 'T' + start_hours + start_minutes + start_seconds;
          end_time = 'T' + end_hours + end_minutes + end_seconds;
        }
        var now_time = 'T' + now_hours + now_minutes + now_seconds;
  
        var start = start_year + start_month + start_day + start_time;
        var end = end_year + end_month + end_day + end_time;
        var now = now_year + now_month + now_day + now_time;
  
        // recurrence rrule vars
        var rruleString;
        if (rrule) {
          if (rrule.rrule) {
            rruleString = rrule.rrule;
          } else {
            rruleString = 'RRULE:FREQ=' + rrule.freq;
  
            if (rrule.until) {
              var uDate = new Date(Date.parse(rrule.until.toISOString())).toISOString();
              rruleString += ';UNTIL=' + uDate.substring(0, uDate.length - 13).replace(/[-]/g, '') + '000000Z';
            }
  
            if (rrule.interval) {
              rruleString += ';INTERVAL=' + rrule.interval;
            }
  
            if (rrule.count) {
              rruleString += ';COUNT=' + rrule.count;
            }
  
            if (rrule.byday && rrule.byday.length > 0) {
              rruleString += ';BYDAY=' + rrule.byday.join(',');
            }
          }
        }

        var valarmArray = [];
        var valarmString;
        if (valarm && Object.keys(valarm).length != 0) {
          let uuid = uuidv4();
          valarmArray.push('BEGIN:VALARM');
          valarmArray.push('X-WR-ALARMUID:' + uuid);
          valarmArray.push('UID:' + uuid);
          valarmArray.push('TRIGGER:-PT' + Math.floor(valarm.trigger).toString() + 'M');
          valarmArray.push('ACTION:DISPLAY');
          if (valarm.description) {
            valarmArray.push('DESCRIPTION:' + valarm.description);
          }
          valarmArray.push('END:VALARM');
          valarmString = valarmArray.join(SEPARATOR);
        }
  
        var stamp = new Date().toISOString();
  
        var calendarEvent = [
          'BEGIN:VEVENT',
          'UID:' + calendarEvents.length + "@" + uidDomain,
          'CLASS:PUBLIC',
          'DESCRIPTION:' + description,
          'DTSTAMP;VALUE=DATE-TIME:' + now,
          'DTSTART;VALUE=DATE-TIME:' + start,
          'DTEND;VALUE=DATE-TIME:' + end,
          'LOCATION:' + location,
          'SUMMARY:' + subject,
          'TRANSP:TRANSPARENT',
          'END:VEVENT'
        ];
  
        if (rruleString) {
          calendarEvent.splice(4, 0, rruleString);
        }

        if (valarm && Object.keys(valarm).length != 0) {
          calendarEvent.splice(calendarEvent.length - 1, 0, valarmString);
        }
  
        calendarEvent = calendarEvent.join(SEPARATOR);
  
        calendarEvents.push(calendarEvent);
        return calendarEvent;
      },
  
      /**
       * Download calendar using the saveAs function from filesave.js
       * @param  {string} filename Filename
       * @param  {string} ext      Extention
       */
      'download': function(filename, ext) {
        if (calendarEvents.length < 1) {
          return false;
        }
  
        ext = (typeof ext !== 'undefined') ? ext : '.ics';
        filename = (typeof filename !== 'undefined') ? filename : 'calendar';
        var calendar = calendarStart + SEPARATOR + calendarEvents.join(SEPARATOR) + calendarEnd;
  
        var blob;
        if (navigator.userAgent.indexOf('MSIE 10') === -1) { // chrome or firefox
          blob = new Blob([calendar]);
        } else { // ie
          var bb = new BlobBuilder();
          bb.append(calendar);
          blob = bb.getBlob('text/x-vCalendar;charset=' + document.characterSet);
        }
        saveAs(blob, filename + ext);
        return calendar;
      },
  
      /**
       * Build and return the ical contents
       */
      'build': function() {
        if (calendarEvents.length < 1) {
          return false;
        }
  
        var calendar = calendarStart + SEPARATOR + calendarEvents.join(SEPARATOR) + calendarEnd;
  
        return calendar;
      }
    };
  };
  
  let _dayschedule = 	[
              { "start":"00:00", "end":"00:00", "🤔":":thinking:" },
              { "start":"08:00", "end":"08:45" },
              { "start":"08:50", "end":"09:35" },
              { "start":"09:50", "end":"10:35" },
              { "start":"10:40", "end":"11:25" },
              { "start":"11:30", "end":"12:15" },
              { "start":"14:05", "end":"14:50" },
              { "start":"14:55", "end":"15:40" },
              { "start":"15:45", "end":"16:30" },
              { "start":"16:40", "end":"17:25" },
              { "start":"17:30", "end":"18:15" },
              { "start":"18:30", "end":"19:15" },
              { "start":"19:20", "end":"20:05" },
              { "start":"20:10", "end":"20:55" }
            ]
  
  let _termschedule_start; // 学期开始的时间
  
  function get_start_time(week, day, no) {
    // Set the initial day to Sunday no matter whay day the start day is
    let date = new Date(); // Get current timezone offset
    let start_time = _termschedule_start + date.getTimezoneOffset() * 60 * 1000;
    start_time -= new Date(_termschedule_start).getDay() * 86400 * 1000;
    start_time += (week - 1) * 7 * 86400 * 1000;
    start_time += (day) * 86400 * 1000;
    let start_time_hhmm = _dayschedule[no]["start"].split(':');
    start_time += parseInt(start_time_hhmm[0]) * 3600 * 1000 + parseInt(start_time_hhmm[1]) * 60 * 1000;
    return new Date(start_time - 8 * 3600 * 1000 - date.getTimezoneOffset() * 60 * 1000);
  }
  
  function get_end_time(week, day, no) {
    let date = new Date();
    let end_time = _termschedule_start + date.getTimezoneOffset() * 60 * 1000;
    end_time -= new Date(_termschedule_start).getDay() * 86400 * 1000;
    end_time += (week - 1) * 7 * 86400 * 1000;
    end_time += (day) * 86400 * 1000;
    let end_time_hhmm = _dayschedule[no]["end"].split(':');
    end_time += parseInt(end_time_hhmm[0]) * 3600 * 1000 + parseInt(end_time_hhmm[1]) * 60 * 1000;
    return new Date(end_time - 8 * 3600 * 1000 - date.getTimezoneOffset() * 60 * 1000);
  }
  
  function get_end_of_week(week) {
    let date = new Date();
    return new Date(_termschedule_start + date.getTimezoneOffset() * 60 * 1000 - (new Date(_termschedule_start).getDay() * 86400 * 1000) + (week) * 7 * 86400 * 1000 - 1 - 8 * 3600 * 1000 - date.getTimezoneOffset() * 60 * 1000);
  }
  
  // Language Check
  let language_list = navigator.languages;
  let tcindex = -1;
  let scindex = -1;
  for (let i = 0; i < language_list.length; i++) {
    if (language_list[i] == "zh" || language_list[i] == "zh-CN" || language_list[i] == "zh-SG" || language_list[i] == "zh-Hans") scindex = i;
    if (language_list[i] == "zh-TW" || language_list[i] == "zh-HK" || language_list[i] == "zh-Hant") tcindex = i;
  }
  if (tcindex < 0) tcindex = language_list.length;
  if (scindex < 0) scindex = language_list.length;
  
  function export_ics() {
    var cal = ics();
    let is_convert_to_tc = false;

    var conf_form = $(
      '<div class="form-content" style="display:none;">' +
      '  <form class="form" role="form" lang="' + ((scindex <= tcindex) ? "zh-CN" : "zh-TW") +'">' +
      '    <div class="form-group">' +
      '      <label for="start_date">' + ((scindex <= tcindex) ? "开学日期" : "開學日期") + '</label>' +
      '      <input type="date" class="bootbox-input-date form-control" id="start_date" name="start_date" value="' + new Date().toISOString().slice(0,10) + '"></input>' +
      '    </div>' +
      '    <div class="form-group">' +
      '      <label for="lang_sel">' + ((scindex <= tcindex) ? "课表语言" : "課表語言") + '</label>' +
      '      <select class="bootbox-input bootbox-input-select form-control" id="lang_sel" name="lang_sel">' +
      '        <option value="zh-sc"' + ((scindex <= tcindex) ? " selected" : "") + '>' + ((scindex <= tcindex) ? "简体中文" : "簡體中文") + '</option>' +
      '        <option value="zh-tc"' + ((scindex <= tcindex) ? "" : " selected") + '>' + ((scindex <= tcindex) ? "繁体中文" : "繁體中文") + '</option>' +
      '      </select>' +
      '    </div>' +
      '    <div class="form-group">' +
      '      <div class="checkbox" id="hasAlarmSwitchDiv">' +
      '          <label>' +
      '              <input class="bootbox-input bootbox-input-checkbox" type="checkbox" id="hasAlarmSwitch">' +
      '              ' + ((scindex <= tcindex) ? "设定上课前提醒" : "設定上課前提醒") +
      '          </label>' +
      '      </div>' +
      '      <div id="alarm-panel" hidden>' +
      '        <div class="checkbox" id="hasAlarmSwitchDiv" hidden>' +
      '            <label>' +
      '                <input class="bootbox-input bootbox-input-checkbox" type="checkbox" id="hasOtherIntervalForFirstClass">' +
      '                ' + ((scindex <= tcindex) ? "第一节课另设提醒时间间隔" : "第一節課另設提醒時間間隔") +
      '            </label>' +
      '        </div>' +
      '        <div class="row">' +
      '            <div class="col-sm-3">' +
      '                <div class="form-group">' +
      '                    <label for="normal_trigger">' + ((scindex <= tcindex) ? "课前提醒" : "課前提醒") + '</label>' +
      '                    <input type="number" class="bootbox-input-number form-control" id="normal_trigger" name="normal_trigger" value="15" min="0" max="1440"></input>' +
      '                </div>' +
      '            </div>' +
      '            <div class="col-sm-3">' +
      '                <div class="form-group">' +
      '                    <label for="morning_first_class_trigger">' + ((scindex <= tcindex) ? "早上首节前提醒" : "早上首節前提醒") + '</label>' +
      '                    <input type="number" disabled="true" class="bootbox-input-number form-control" id="morning_first_class_trigger" name="morning_first_class_trigger" value="15" min="0" max="1440"></input>' +
      '                </div>' +
      '            </div>' +
      '            <div class="col-sm-3">' +
      '                <div class="form-group">' +
      '                    <label for="afternoon_first_class_trigger">' + ((scindex <= tcindex) ? "下午首节前提醒" : "下午首節前提醒") + '</label>' +
      '                    <input type="number" disabled="true" class="bootbox-input-number form-control" id="afternoon_first_class_trigger" name="afternoon_first_class_trigger" value="15" min="0" max="1440"></input>' +
      '                </div>' +
      '            </div>' +
      '            <div class="col-sm-3">' +
      '                <div class="form-group">' +
      '                    <label for="evening_first_class_trigger">' + ((scindex <= tcindex) ? "晚上首节前提醒" : "晚上首節前提醒") + '</label>' +
      '                    <input type="number" disabled="true" class="bootbox-input-number form-control" id="evening_first_class_trigger" name="evening_first_class_trigger" value="15" min="0" max="1440"></input>' +
      '                </div>' +
      '            </div>' +
      '        </div>' +
      '        <div class="form-group" style="padding-top: 1px;">' +
      '          <p for="none">' + ((scindex <= tcindex) ?
      '提醒时间单位为分钟，范围 0~1440 ，如果设定为 0 则不提醒。' :
      '提醒時間單位為分鐘，範圍 0~1440 ，如果設定為 0 則不提醒。'
      ) + '      </p>' +
      '        </div>' +
      '      </div>'+
      '    </div>' +
      '    <div class="form-group" style="padding-top: 1px;">' +
      '      <p for="none">' + ((scindex <= tcindex) ?
      '运行说明：在上面选择开学第一周的任意日期（由周日开始周六结束算一周），然后在下方选择课表导出的语言，再按下「导出」即可将课表存为 .ics 的日历格式。繁体中文的课表由原始表经过 <a href="https://github.com/BYVoid/OpenCC">OpenCC</a> 程序转换得出，可能会有字符错误，请谅解。<br>本程序免费并在 <a href="https://github.com/Ostrichbeta/WHU-class-schedule-export-ics">GitHub</a> 开放源代码。' :
      '運行說明：在上面選擇開學第一週的任意日期（由週日開始週六結束為一週），然後在下方選擇課表匯出的語言，再按下「匯出」即可將課表存為 .ics 的日曆格式。繁體中文的課表由原始表經過 <a href="https://github.com/BYVoid/OpenCC">OpenCC</a> 程式轉換得出，可能會有字元錯誤，請諒解。<br>本程式免費並在 <a href="https://github.com/Ostrichbeta/WHU-class-schedule-export-ics">GitHub</a> 開放原始碼。'
      ) + '</p>' +
      '    </div>' +
      '  </form>' +
      '</div>'
    );

    // Control the toggle of alarm panel
    $("body").on('change', '#hasAlarmSwitch', function(){
      if ($('#hasAlarmSwitch') && $('#alarm-panel')) {
        if ($('#hasAlarmSwitch').is(":checked")) {
          $('#alarm-panel').show();
        }
        else{
          $('#alarm-panel').hide();
        }
      }
    });

    // Contol the toggle of unique interval for the first class
    $("body").on('change', '#hasOtherIntervalForFirstClass', function(){
      if ($('#hasOtherIntervalForFirstClass')) {
        if ($('#hasOtherIntervalForFirstClass').is(":checked")) {
          // Remove all the disability to edit other editboxes
          if ($('#morning_first_class_trigger')) $('#morning_first_class_trigger').prop("disabled", false);
          if ($('#afternoon_first_class_trigger')) $('#afternoon_first_class_trigger').prop("disabled", false);
          if ($('#evening_first_class_trigger')) $('#evening_first_class_trigger').prop("disabled", false);
        } else {
          if ($('#morning_first_class_trigger')) $('#morning_first_class_trigger').prop("disabled", true);
          if ($('#afternoon_first_class_trigger')) $('#afternoon_first_class_trigger').prop("disabled", true);
          if ($('#evening_first_class_trigger')) $('#evening_first_class_trigger').prop("disabled", true);
          // Reset all the values to the same as the first one
          if ($("#morning_first_class_trigger")) $("#morning_first_class_trigger").val($('#normal_trigger').val());
          if ($("#afternoon_first_class_trigger")) $("#afternoon_first_class_trigger").val($('#normal_trigger').val());
          if ($("#evening_first_class_trigger")) $("#evening_first_class_trigger").val($('#normal_trigger').val());
        }
      }
    });

    // Control the sync of the edit box
    $("body").on('change', '#normal_trigger', function(){
      if ($('#normal_trigger')) {
        if (parseInt($('#normal_trigger').val()) > 1440) {
          $('#normal_trigger').val("1440");
        }
        if (parseInt($('#normal_trigger').val()) < 0 || $('#normal_trigger').val() == "") {
          $('#normal_trigger').val("0");
        }
        if (!$("#hasOtherIntervalForFirstClass").is(":checked")) {
          if ($("#morning_first_class_trigger")) $("#morning_first_class_trigger").val($('#normal_trigger').val());
          if ($("#afternoon_first_class_trigger")) $("#afternoon_first_class_trigger").val($('#normal_trigger').val());
          if ($("#evening_first_class_trigger")) $("#evening_first_class_trigger").val($('#normal_trigger').val());
        }
      }
    });

    // Ensure all the inputs are in the correct range
    $("body").on('change', '#morning_first_class_trigger', function(){
      if ($('#morning_first_class_trigger')) {
        if (parseInt($('#morning_first_class_trigger').val()) > 1440) {
          $('#morning_first_class_trigger').val("1440");
        }
        if (parseInt($('#morning_first_class_trigger').val()) < 0 || $('#morning_first_class_trigger').val() == "") {
          $('#morning_first_class_trigger').val("0");
        }
      }
    });

    $("body").on('change', '#afternoon_first_class_trigger', function(){
      if ($('#afternoon_first_class_trigger')) {
        if (parseInt($('#afternoon_first_class_trigger').val()) > 1440) {
          $('#afternoon_first_class_trigger').val("1440");
        }
        if (parseInt($('#afternoon_first_class_trigger').val()) < 0 || $('#afternoon_first_class_trigger').val() == "") {
          $('#afternoon_first_class_trigger').val("0");
        }
      }
    });

    $("body").on('change', '#evening_first_class_trigger', function(){
      if ($('#evening_first_class_trigger')) {
        if (parseInt($('#evening_first_class_trigger').val()) > 1440) {
          $('#evening_first_class_trigger').val("1440");
        }
        if (parseInt($('#evening_first_class_trigger').val()) < 0 || $('#evening_first_class_trigger').val() == "") {
          $('#evening_first_class_trigger').val("0");
        }
      }
    });

    bootbox.confirm({
      title: (scindex <= tcindex) ? "导出设置" : "匯出設定",
      message: conf_form.html(),
      size: "small",
      buttons: {
          cancel: {
              label: (scindex <= tcindex) ? "取消" : "取消"
          },
          confirm: {
              label: (scindex <= tcindex) ? "导出" : "匯出"
          }
      },
      callback: function (result) {
          if (!result) return; else {
            _termschedule_start = Date.parse($("#start_date").attr("value"));
            is_convert_to_tc = $("#lang_sel").val() == "zh-tc";
            // Fetch the vertical list
            for (let i of $("#table2").children().eq(0).children()) {
              if ($("#table2").children().eq(0).children().eq(0).is(i)) continue; // Skip the first element
              if(typeof($(i).attr("id")) == 'undefined') continue;
              let day_in_week = parseInt($(i).attr("id").split("_")[1]) == 7 ? 0 : parseInt($(i).attr("id").split("_")[1]);
              let is_first_morning_class_set = false;
              let is_first_afternoon_class_set = false;
              let is_first_evening_class_set = false;
              for (let j of $(i).children()) {
                if ($(i).children().eq(0).is(j)) continue; // Skip the first element which is an indicator
              
                let Tsubject = "";
                let Tdescription = "";
                let Tlocation = "";
                let Tbegin = "";
                let Tend = "";
                let TbeginList = [];
                let TendList = [];
                let TuntilList = [];
                let Trrule = {};
                let Tvalarm = {};
              
                let single_class_obj = $(j).children().eq(($(j).children().filter(":nth-child(1)").attr("rowspan") == undefined ? 0 : 1)).children().eq(0);
              
                // Detects title, if a class has been modified, the span tag will be changed to u
                if ($(single_class_obj).children().filter("span.title").size() == 0) {
                  Tsubject = $(single_class_obj).children().filter("u.title").text();
                }
                else
                {
                  Tsubject = $(single_class_obj).children().filter("span.title").text();
                }
                

                
                let class_duration_obj = $(j).children().filter(":nth-child(1)")
                while (class_duration_obj.attr("rowspan") == undefined) { // If a single class' rowspan is not equal to 1, it means there are modifications for this class
                  class_duration_obj = class_duration_obj.parent().prev().children().filter(":nth-child(1)")
                }
                let class_duration_list = class_duration_obj.text().match(/\d+/g); // e.g.: [1, 2]
              
                for (let k of $(single_class_obj).children().filter(":nth-child(2)").children()) {
                  let class_information_child_text_raw = $(k).text().trim(); // Remove the edge spaces here.
                  let class_information_list = class_information_child_text_raw.split('：');
                
                  switch (class_information_list[0]) {
                    case "周数":
                      let week_range_list = class_information_list[1].match(/\d+(-\d+)?/g);
                      let week_duration_list = [];
                      week_range_list.forEach((item, index, arr) => {
                        let week_duration_item = item.match(/\d+/g);
                        if (week_duration_item.length == 0) {
                          bootbox.alert({
                            title: (scindex <= tcindex) ? "错误" : "錯誤",
                            message: (scindex <= tcindex) ? "周数未显示，无法生成！\n脚本只能取得屏幕上所显示的信息，请通过点按左侧齿轮，在菜单中选中「时间」项开启。" : "週數未顯示，無法匯出！\n腳本只能取得螢幕上所顯示的資訊，請通過點按左側齒輪，在彈出選單中選中「時間」項開啟。",
                            size: 'small'
                          });
                          return;
                        }
                        let startWeek = week_duration_item[0];
                        let endWeek = "";
                        if (week_duration_item.length == 1) {
                          endWeek = week_duration_item[0];
                        } else {
                          endWeek = week_duration_item[1];
                        }
                        week_duration_list.push([parseInt(startWeek), parseInt(endWeek)]);
                      });
                      for (let item of week_duration_list) {
                        TbeginList.push(get_start_time(item[0], day_in_week, parseInt(class_duration_list[0])));
                        TendList.push(get_end_time(item[0], day_in_week, parseInt(class_duration_list.length == 1 ? class_duration_list[0] : class_duration_list[1])));
                        TuntilList.push(get_end_of_week(parseInt(item[1])));
                      }
                      Trrule.freq = "WEEKLY";
                      Trrule.interval = 1;
                      break;
                    
                    case "上课地点":
                      Tlocation = "武汉大学" + class_information_list[1];
                      break;
                    
                    default:
                      Tdescription += (Tdescription == "" ? "" : '\\n') + class_information_list[0] + "：" + class_information_list[1];
                  }
                }
              

                // Check if the alarm switch is on, and check if this is the first class
                if ($('#hasAlarmSwitch') && $('#hasAlarmSwitch').is(":checked")) {
                  if (parseInt(class_duration_list[0]) >= 1 && parseInt(class_duration_list[0]) <= 5 && !is_first_morning_class_set) {
                    // Class started in the morning
                    is_first_morning_class_set = true;
                    if (parseInt($("#morning_first_class_trigger").val()) != 0) {
                      // Ignore the alarm if the trigger time is zero
                      Tvalarm = {
                        trigger: parseInt($("#morning_first_class_trigger").val()),
                        description: "alarm-morning-first-class"
                      };
                    }
                  } else if (parseInt(class_duration_list[0]) >= 6 && parseInt(class_duration_list[0]) <= 10 && !is_first_afternoon_class_set) {
                    // Class started in the afternoon
                    is_first_afternoon_class_set = true;
                    if (parseInt($("#afternoon_first_class_trigger").val()) != 0) {
                      Tvalarm = {
                        trigger: parseInt($("#afternoon_first_class_trigger").val()),
                        description: "alarm-afternoon-first-class"
                      };
                    }
                  } else if (parseInt(class_duration_list[0]) >= 11 && parseInt(class_duration_list[0]) <= 13 && !is_first_evening_class_set) {
                    // Class started in the evening
                    is_first_evening_class_set = true;
                    if (parseInt($("#afternoon_first_class_trigger").val()) != 0) {
                      Tvalarm = {
                        trigger: parseInt($("#evening_first_class_trigger").val()),
                        description: "alarm-evening-first-class"
                      };
                    }
                  } else {
                    // Normal class
                    if (parseInt($("#normal_trigger").val()) != 0) {
                      Tvalarm = {
                        trigger: parseInt($("#normal_trigger").val()),
                        description: "alarm-normal-class"
                      };
                    }
                  }
                }
              
                if (is_convert_to_tc) {
                  // Chinese Conversion
                  let converter = OpenCC.Converter({ from: 'cn', to: 'twp' });
                  Tsubject = converter(Tsubject);
                  Tdescription = converter(Tdescription);
                  Tlocation = converter(Tlocation);
                }
                
                for (let index = 0; index < TbeginList.length; index++) {
                  Trrule.until = TuntilList[index];
                  console.log(Tsubject, Tdescription, Tlocation, TbeginList[index], TendList[index], Trrule, Tvalarm);
                  cal.addEvent(Tsubject, Tdescription, Tlocation, TbeginList[index], TendList[index], Trrule, Tvalarm);
                }
              
              }
            }
            let converter = OpenCC.Converter({ from: 'cn', to: 'twp' });
            cal.download(is_convert_to_tc ? converter($(".timetable_title").eq(0).text()) : $(".timetable_title").eq(0).text());
          }
      }
  });


    
  }
  
  
  var export_button = $('<button type="button" class="btn btn-default" id="exportICS" data-type="list"><span class="bigger-120 glyphicon glyphicon-calendar"> ' + ((scindex <= tcindex) ? "导出iCS" : "匯出iCS" ) +'</span></button>');
  export_button.click(export_ics);
  $('#tb').prepend(export_button)


})();
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