https://applicationnewjw.ecnu.edu.cn/eams/static/scripts/course/TaskActivity.js

EcnuTaskActivity.js

var delimiter = "<br>"
var weekCycle = [];
weekCycle[1] = "";// "%u8FDE";
weekCycle[2] = "%u5355";
weekCycle[3] = "%u53CC";
var result = new String("");
var weeksPerYear = 53;
// 输出教学活动信息
function activityInfo() {
    return "teacherId:" + this.teacherId + "\n"
        + "teacherName:" + this.teacherName + "\n"
        + "courseId:" + this.courseId + "\n"
        + "courseName:" + this.courseName + "\n"
        + "roomId:" + this.roomId + "\n"
        + "roomName:" + this.roomName + "\n"

        + "expLessonGroupId:" + this.expLessonGroupId + "\n"

        + "expLessonGroupIndexNo:" + this.expLessonGroupIndexNo + "\n"

        + "vaildWeeks:" + this.vaildWeeks;
}
/**
 * 判断是否相同的活动 same acitivity [teacherId,courseId,roomId,vaildWeeks]
 */
function isSameActivity(other) {
    return this.canMergeWith(other) && (this.vaildWeeks == other.vaildWeeks);
}
/**
 * 合并相同的教学活动 same [teacherId,courseId,roomId,remark] can merge
 */
function canMergeWith(other) {
    return (this.teacherId == other.teacherId && this.courseId == other.courseId && this.roomId == other.roomId && this.remark == other.remark
        && this.expLessonGroupIndexNo == other.expLessonGroupIndexNo);//TODO 实验分组
}
// utility for repeat char
function repeatChar(str, length) {
    if (length <= 1) {
        return str;
    }
    var rs = "";
    for (var k = 0; k < length; k++) {
        rs += str;
    }
    return rs;
}

/**
* 添加缩略表示 add a abbreviation to exists result; Do not use it directly. a
* white space will delimate the weeks For example:odd1-18 even3-20
*/
function addAbbreviate(cycle, begin, end) {
    if (result !== "") {
        result += " ";
    }
    if (begin == end) { // only one week
        result += begin;
    }
    else {
        result += unescape(weekCycle[cycle]) + begin + "-" + end;
    }
    return result;
}
// 缩略单周,例如"10101010"
function mashalOdd(result, weekOccupy, from, start) {
    var cycle = 0;
    if ((start - from + 2) % 2 === 0) {
        cycle = 3;
    }
    else {
        cycle = 2;
    }
    var i = start + 2;
    for (; i < weekOccupy.length; i += 2) {
        if (weekOccupy.charAt(i) == '1') {
            if (weekOccupy.charAt(i + 1) == '1') {
                addAbbreviate(cycle, start - from + 2, i - 2 - from + 2);
                return i;
            }
        } else {
            if (i - 2 == start) {
                cycle = 1;
            }
            addAbbreviate(cycle, start - from + 2, i - 2 - from + 2);
            return i + 1;
        }
    }
    return i;
}

// 缩略连续周
function mashalContinue(result, weekOccupy, from, start) {
    var cycle = 1;
    var i = start + 2;
    for (; i < weekOccupy.length; i += 2) {
        if (weekOccupy.charAt(i) == '1') {
            if (weekOccupy.charAt(i + 1) != '1') {
                addAbbreviate(cycle, start - from + 2, i - from + 2);
                return i + 2;
            }
        } else {
            addAbbreviate(cycle, start - from + 2, i - 1 - from + 2);
            return i + 1;
        }
    }
    return i;
}
/**
* 对教学周占用串进行缩略表示 marsh a string contain only '0' or '1' which named
* "vaildWeeks" with length 53
* 00000000001111111111111111100101010101010101010100000 |
* |--------------------------------------| (from) (startWeek) (endWeek)
* from is start position with minimal value 1,in login it's calendar week
* start startWeek is what's start position you want to mashal baseed on
* start,it also has minimal value 1 endWeek is what's end position you want
* to mashal baseed on start,it also has minimal value 1
*/
function marshal(weekOccupy, from, startWeek, endWeek) {
    result = "";
    if (null == weekOccupy) {
        return "";
    }
    var initLength = weekOccupy.length;

    if (from > 1) {
        var before = weekOccupy.substring(0, from - 1);
        if (before.indexOf('1') != -1) {
            weekOccupy = weekOccupy + before;
        }
    }
    var tmpOccupy = repeatChar("0", from + startWeek - 2);
    tmpOccupy += weekOccupy.substring(from + startWeek - 2, from + endWeek - 1);
    tmpOccupy += repeatChar("0", initLength - weekOccupy.length);
    weekOccupy = tmpOccupy;

    if (endWeek > weekOccupy.length) {
        endWeek = weekOccupy.length;
    }
    if (weekOccupy.indexOf('1') == -1) {
        return "";
    }
    weekOccupy += "000";
    var start = 0;
    while ('1' != weekOccupy.charAt(start)) {
        start++;
    }
    var i = start + 1;
    while (i < weekOccupy.length) {
        var post = weekOccupy.charAt(start + 1);
        if (post == '0') {
            start = mashalOdd(result, weekOccupy, from, start);
        }
        if (post == '1') {
            start = mashalContinue(result, weekOccupy, from, start);
        }
        while (start < weekOccupy.length && '1' != weekOccupy.charAt(start)) {
            start++;
        }
        i = start;
    }
    return result;
}
/**
 * mashal style is or --------------------------- -------------------- |
 * odd3-18 even19-24,room | | odd3-18 | --------------------------
 * --------------------
 */
function marshalValidWeeks(from, startWeek, endWeek) {
    // alert(this.vaildWeeks);
    var groupMsg = this.expLessonGroupIndexNo == "" ? "理论课占用" : this.expLessonGroupIndexNo + "组占用";
    if (this.roomName != "") {
        return marshal(this.vaildWeeks, from, startWeek, endWeek) + "," + this.roomName + ",【" + groupMsg + "】";
    }
    else {
        return marshal(this.vaildWeeks, from, startWeek, endWeek) + ",【" + groupMsg + "】";
    }
}

function or(first, second) {
    var newStr = "";
    for (var i = 0; i < first.length; i++) {
        if (first.charAt(i) == '1' || second.charAt(i) == '1') {
            newStr += "1";
        }
        else {
            newStr += "0";
        }
    }
    // alert(first+":first\n"+second+":second\n"+newStr+":result");
    return newStr;
}

// merger activity in every unit.
function mergeAll() {
    for (var i = 0; i < this.unitCounts; i++) {
        if (this.activities[i].length > 1) {
            for (var j = 1; j < this.activities[i].length; j++) {
                this.activities[i][0].vaildWeeks = or(this.activities[i][0].vaildWeeks, this.activities[i][j].vaildWeeks);
                this.activities[i][j] = null;
            }
        }
    }
}
// merger activity in every unit by course.
function mergeByCourse() {
    for (var i = 0; i < this.unitCounts; i++) {
        if (this.activities[i].length > 1) {
            // O(n^2)
            for (var j = 0; j < this.activities[i].length; j++) {
                if (null != this.activities[i][j]) {
                    for (var k = j + 1; j < this.activities[i].length; k++) {
                        if (null != this.activities[i][k]) {
                            if (this.activities[i][j].courseName == this.activities[i][k].courseName) {
                                this.activities[i][j].vaildWeeks = or(this.activities[i][j].vaildWeeks, this.activities[i][k].vaildWeeks);
                                this.activities[i][k] = null;
                            }
                        }
                    }
                }
            }
        }
    }
}
function isTimeConflictWith(otherTable) {
    for (var i = 0; i < this.unitCounts; i++) {
        if (this.activities[i].length !== 0 && otherTable.activities[i].length !== 0) {
            for (var m = 0; m < this.activities[i].length; m++) {
                for (var n = 0; n < otherTable.activities[i].length; n++) {
                    for (var k = 0; k < this.activities[i][m].vaildWeeks.length; k++) {
                        if (this.activities[i][m].vaildWeeks.charAt(k) == '1'
                            && otherTable.activities[i][n].vaildWeeks.charAt(k) == '1') {
                            return true;
                        }
                    }
                }
            }
        }
    }
    return false;
}

/**
 * aggreagate activity of same course. first merge the activity of same
 * (teacher,course,room). then output mashal vaildWeek string . if course is
 * null. the course name will be ommited in last string. style is
 * -------------------------------- | teacher1Name course1Name | |
 * (odd1-2,room1Name) | | (even2-4,room2Name) | | teacher2Name course1Name | |
 * (odd3-6,room1Name) | | (even5-8,room2Name) |
 * ----------------------------------
 * 
 * @param index
 *            time unit index
 * @param from
 *            start position in year occupy week
 * @param startWeek
 *            bengin position from [from]
 * @param endWeek
 *            end position from [from]
 */
function marshalByTeacherCourse(index, from, startWeek, endWeek) {
    var validStart = from + startWeek - 2;
    if (this.activities[index].length === 0) { return ""; }
    if (this.activities[index].length == 1) {
        var cname = this.activities[index][0].courseName;
        var tname = this.activities[index][0].teacherName;
        return tname + " " + cname + delimiter + "(" + this.activities[index][0].adjustClone(this.endAtSat, validStart, false).marshal(from, startWeek, endWeek) + ")";
    }
    else {
        var marshalString = "";
        var tempActivities = new Array();
        tempActivities[0] = this.activities[index][0].adjustClone(this.endAtSat, validStart, true);
        // merge this.activities to tempActivities by same courseName and
        // roomId .start with 1.
        for (var i = 1; i < this.activities[index].length; i++) {
            var merged = false;
            for (var j = 0; j < tempActivities.length; j++) {
                if (this.activities[index][i].canMergeWith(tempActivities[j])) {
                    // alert(tempActivities[j]+"\n"
                    // +this.activities[index][i]);
                    merged = true;
                    var secondWeeks = this.activities[index][i].vaildWeeks;
                    if (this.activities[index][i].needLeftShift(this.endAtSat, validStart)) {
                        secondWeeks = this.activities[index][i].vaildWeeks.substring(1, 53) + "0";
                    }
                    tempActivities[j].vaildWeeks = or(tempActivities[j].vaildWeeks, secondWeeks);
                }
            }
            if (!merged) {
                tempActivities[tempActivities.length] = this.activities[index][i].adjustClone(this.endAtSat, validStart, false);
            }
        }

        // marshal tempActivities
        for (var m = 0; m < tempActivities.length; m++) {
            if (tempActivities[m] === null) {
                continue;
            }
            var courseName = tempActivities[m].courseName;
            var teacherName = tempActivities[m].teacherName;
            // add teacherName and courseName
            if (courseName !== null) { marshalString += delimiter + teacherName + " " + courseName;/* alert(courseName); */ }
            marshalString += delimiter + "(" + tempActivities[m].marshal(from, startWeek, endWeek) + ")";
            for (var n = m + 1; n < tempActivities.length; n++) {
                // marshal same courseName activity
                if (tempActivities[n] !== null && courseName == tempActivities[n].courseName && teacherName == tempActivities[n].teacherName) {
                    marshalString += delimiter + "(" + tempActivities[n].marshal(from, startWeek, endWeek) + ")";
                    tempActivities[n] = null;
                }
            }
        }

        if (marshalString.indexOf(delimiter) === 0) {
            return marshalString.substring(delimiter.length);
        }
        else {
            return marshalString;
        }
    }
}

// return true,if this.activities[first] and this.activities[second] has
// same activities .
function isSameActivities(first, second) {
    if (this.activities[first].length != this.activities[second].length) {
        return false;
    }
    if (this.activities[first].length == 1) {
        return this.activities[first][0].isSame(this.activities[second][0]);
    }
    for (var i = 0; i < this.activities[first].length; i++) {
        var find = false;
        for (var j = 0; j < this.activities[second].length; j++) {
            if (this.activities[first][i].isSame(this.activities[second][j])) {
                find = true; break;
            }
        }
        if (find === false) {
            return false;
        }
    }
    return true;
}
/**
 * 检查是否需要进行左移动
 */
function needLeftShift(endAtSat, start) {
    return (!endAtSat && this.vaildWeeks.substring(0, start).indexOf("1") != -1 && this.vaildWeeks.substring(start).indexOf("1") == -1)
}
/**
 * 根据年份是否以周六结束,调整占用周. 如果在起始周之前有占用周,只有没有则表示可以进行调节.
 */
function leftShift() {
    this.vaildWeeks = this.vaildWeeks.substring(1, 53) + "0";
    // alert("leftShift:"+this.vaildWeeks);
}
/**
 * 根据该年份是否结束于星期六，调整教学州的占用串。 如果没有调整则返回原来的activity.否则返回调整后的新的activity。
 * 
 * @activity 要调整的教学活动
 * @endAtStat 该活动的年份是否结束于星期六
 * @start 从何为止检查有效的教学周
 * @mustClone 是否必须克隆
 */
function adjustClone(endAtSat, start, mustClone) {
    if (mustClone) {
        var newActivity = this.clone();
        if (newActivity.needLeftShift(endAtSat, start)) {
            newActivity.leftShift();
        }
        return newActivity;
    } else {
        if (this.needLeftShift(endAtSat, start)) {
            var activity = this.clone();
            activity.leftShift(start);
            return activity;
        } else {
            return this;
        }
    }
}
// new taskAcitvity
function TaskActivity(teacherId, teacherName, courseId, courseName, roomId, roomName, vaildWeeks, taskId, expLessonGroupId, expLessonGroupIndexNo, remark, specialRoom) {
    this.teacherId = teacherId;
    this.teacherName = teacherName;
    this.courseId = courseId;
    this.courseName = courseName;
    this.roomId = roomId;
    this.roomName = roomName;
    this.vaildWeeks = vaildWeeks;	// 53个01组成的字符串，代表了一年的53周
    this.taskId = taskId;
    this.marshal = marshalValidWeeks;
    this.addAbbreviate = addAbbreviate;
    this.clone = cloneTaskActivity;
    this.canMergeWith = canMergeWith;
    this.isSame = isSameActivity;
    this.toString = activityInfo;
    this.adjustClone = adjustClone;
    this.leftShift = leftShift;
    this.needLeftShift = needLeftShift;
    this.remark = remark;
    this.expLessonGroupId = expLessonGroupId;
    this.expLessonGroupIndexNo = expLessonGroupIndexNo;
    this.validWeekOverlappingWith = validWeekOverlappingWith;
    if (this.roomName == "") {
        this.roomName = specialRoom;
    }
}

// clone a activity
function cloneTaskActivity() {
    return new TaskActivity(this.teacherId, this.teacherName, this.courseId, this.courseName, this.roomId, this.roomName, this.vaildWeeks, this.taskId, this.expLessonGroupId, this.expLessonGroupIndexNo, this.remark);
}
// 
function marshalTable(from, startWeek, endWeek) {
    for (var k = 0; k < this.unitCounts; k++) {
        if (this.activities[k].length > 0) {
            this.marshalContents[k] = this.marshal(k, from, startWeek, endWeek);
        }
    }
}


function marshalTableForAdminclass(from, startWeek, endWeek) {
    for (var k = 0; k < this.unitCounts; k++) {
        if (this.activities[k].length > 0) {
            this.marshalContents[k] = this.marshalForAdminclass(k, from, startWeek, endWeek);
        }
    }
}

function marshalForAdminclass(index, from, startWeek, endWeek) {
    var validStart = from + startWeek - 2;
    if (this.activities[index].length === 0) { return ""; }
    if (this.activities[index].length == 1) {
        var cname = this.activities[index][0].courseName;
        var tname = this.activities[index][0].teacherName;
        var roomOccupancy = "(" + this.activities[index][0].adjustClone(this.endAtSat, validStart, false).marshal(from, startWeek, endWeek) + ")";
        return tname + " " + cname + roomOccupancy;
    }
    else {
        var marshalString = "";
        var tempActivities = new Array();
        tempActivities[0] = this.activities[index][0].adjustClone(this.endAtSat, validStart, true);
        // merge this.activities to tempActivities by same courseName and
        // roomId .start with 1.
        for (var i = 1; i < this.activities[index].length; i++) {
            var merged = false;
            for (var j = 0; j < tempActivities.length; j++) {
                if (this.activities[index][i].canMergeWith(tempActivities[j])) {
                    // alert(tempActivities[j]+"\n"
                    // +this.activities[index][i]);
                    merged = true;
                    var secondWeeks = this.activities[index][i].vaildWeeks;
                    if (this.activities[index][i].needLeftShift(this.endAtSat, validStart)) {
                        secondWeeks = this.activities[index][i].vaildWeeks.substring(1, 53) + "0";
                    }
                    tempActivities[j].vaildWeeks = or(tempActivities[j].vaildWeeks, secondWeeks);
                }
            }
            if (!merged) {
                tempActivities[tempActivities.length] = this.activities[index][i].adjustClone(this.endAtSat, validStart, false);
            }
        }

        // marshal tempActivities
        for (var m = 0; m < tempActivities.length; m++) {
            if (tempActivities[m] === null) {
                continue;
            }
            var courseName = tempActivities[m].courseName;
            var teacherName = tempActivities[m].teacherName;
            // add teacherName and courseName
            var tipStr = "";
            if (courseName !== null) {
                tipStr = courseName + "(" + tempActivities[m].marshal(from, startWeek, endWeek) + ")";
            }
            if (marshalString.indexOf(tipStr) == -1) {
                marshalString += delimiter + tipStr;
            }
        }

        if (marshalString.indexOf(delimiter) === 0) {
            return marshalString.substring(delimiter.length);
        }
        else {
            return marshalString;
        }
    }
}

function fillTable(tableId, weeks, units) {
    var courseTable = document.getElementById(tableId);
    if (courseTable == null) { return; }
    for (var i = 0; i < weeks; i++) {
        for (var j = 0; j < units - 1; j++) {
            var index = units * i + j;
            var preTd = document.getElementById("TD" + index);
            var nextTd = document.getElementById("TD" + (index + 1));
            while (this.marshalContents[index] != null && this.marshalContents[index + 1] != null && this.marshalContents[index] == this.marshalContents[index + 1]) {
                preTd.parentNode.removeChild(nextTd);
                var spanNumber = new Number(preTd.colSpan);
                spanNumber++;
                preTd.colSpan = spanNumber;
                j++;
                if (j >= units - 1) {
                    break;
                }
                index = index + 1;
                nextTd = document.getElementById("TD" + (index + 1));
            }
        }
    }

    for (var k = 0; k < this.unitCounts; k++) {
        var td = document.getElementById("TD" + k);
        if (td != null && this.marshalContents[k] != null) {
            td.innerHTML = this.marshalContents[k];
            td.style.backgroundColor = "#94aef3";
            td.className = "infoTitle";
        }
    }
}
/***************************************************************************
 * course table dispaly occupy of teacher,room and andminClass. It also
 * represent data model of any course arrangement. For example student's
 * course table,single course's table,teacher's course table,and
 * adminClass's course table,even major's .
 **************************************************************************/
function CourseTable(year, unitCounts) {
    this.unitCounts = unitCounts;
    this.activities = [unitCounts];
    this.year = year;
    var date = new Date();
    // 日期中的月份为该月份的数字减一
    date.setFullYear(year, 11, 31);
    this.endAtSat = false;
    if (6 == date.getDay()) {
        this.endAtSat = true;
    }

    this.marshalContents = new Array(unitCounts);
    for (var k = 0; k < unitCounts; k++) {
        this.activities[k] = [];
    }

    this.mergeAll = mergeAll;
    this.marshal = marshalByTeacherCourse;
    // return true,if this.activities[first] and this.activities[second] has
    // same vaildWeeks and roomId pair set.
    this.isSame = isSameActivities;
    this.isTimeConflictWith = isTimeConflictWith;
    this.marshalTable = marshalTable;
    this.marshalTableForAdminclass = marshalTableForAdminclass;
    this.fill = fillTable;
    this.marshalForAdminclass = marshalForAdminclass;
}

/***************************************************************************
 * 添加一个小节中的教学活动组成一个活动集. * *
 **************************************************************************/
// add acitity to cluster.and weekInex from 0 to weeks-1
function addActivityToCluster(teacherId, teacherName, roomId, roomName, expLessonGroupId, expLessonGroupIndexNo, weekIndex) {
    // alert("addActivityToCluster:"+weekIndex)
    if (null == this.weeksMap[teacherId + roomId]) {
        this.weeksMap[teacherId + roomId] = new Array(this.weeks);
        this.activityMap[teacherId + roomId] = new TaskActivity(teacherId, teacherName, this.courseId, this.courseName, roomId, roomName, "", "", expLessonGroupId, expLessonGroupIndexNo);
    }
    this.weeksMap[teacherId + roomId][weekIndex] = "1";
}
/**
 * 合并课程表中相同的单元格
 */
function mergeCellOfCourseTable(weeks, units) {
    for (var i = 0; i < weeks; i++) {
        for (var j = 0; j < units - 1; j++) {
            var index = units * i + j;
            var preTd = document.getElementById("TD" + index);
            var nextTd = document.getElementById("TD" + (index + 1));
            while (preTd.innerHTML !== "" && nextTd.innerHTML !== "" && preTd.innerHTML == nextTd.innerHTML) {
                preTd.parentNode.removeChild(nextTd);
                var spanNumber = new Number(preTd.colSpan);
                spanNumber++;
                preTd.colSpan = spanNumber;
                j++;
                if (j >= units - 1) {
                    break;
                }
                index = index + 1;
                nextTd = document.getElementById("TD" + (index + 1));
            }
        }
    }
}
/*
 * construct a valid Weeks from this.weeksMap by key teacherRoomId this
 * startweek is the position of this.weeksMap[teacherRoomId] in return
 * validWeekStr also it has mininal value 1;
 */
function constructValidWeeks(startWeek, teacherRoomId) {
    // alert("enter constructValidWeeks")
    // as many as possible weeks with in a year
    var firstWeeks = new Array(weeksPerYear);
    var secondWeeks = null;
    var weeksThisYear = "";
    for (var i = 0; i < weeksPerYear - 1; i++) {
        firstWeeks[i] = "0";
    }
    for (var weekIndex = 0; weekIndex < this.weeksMap[teacherRoomId].length; weekIndex++) {
        var occupy = "0";
        if (this.weeksMap[teacherRoomId][weekIndex] === undefined) occupy == "0";
        else occupy = "1";
        // 计算占用周的位置
        var weekIndexNum = new Number(weekIndex);
        weekIndexNum += startWeek - 1;

        if (weekIndexNum < weeksPerYear) {
            firstWeeks[weekIndexNum] = occupy;
        }
        else {
            if (null == secondWeeks) {
                // 生成下一年的占用情况
                secondWeeks = new Array();
                for (var i = 0; i < weeksPerYear - 1; i++) {
                    secondWeeks[i] = "0";
                }
            }
            secondWeeks[(weekIndexNum + (this.endAtSat ? 0 : 1)) % weeksPerYear] = occupy;
        }
    }
    for (i = 0; i < weeksPerYear; i++) {
        weeksThisYear += (firstWeeks[i] == null) ? "0" : firstWeeks[i];
    }
    // alert(weeksThisYear)
    var weekState = new Array();

    if (weeksThisYear.indexOf("1") != -1) {
        weekState[weekState.length] = weeksThisYear;
    }
    var weeksNextYear = "";
    if (null != secondWeeks) {
        for (i = 0; i < weeksPerYear; i++) {
            weeksNextYear += (secondWeeks[i] === undefined) ? "0" : secondWeeks[i];
        }
        if (weeksNextYear.indexOf("1") != -1) {
            weekState[weekState.length] = weeksNextYear;
        }
        // alert(weeksNextYear);
    }
    // alert(weekState)
    return weekState;
}
/**
 * 构造教学活动
 * 
 */
function constructActivities(startWeek) {
    // alert("enter constructActivities")
    var activities = new Array();
    for (var teacherRoomId in this.activityMap) {
        var weekState = this.constructValidWeeks(startWeek, teacherRoomId);
        this.activityMap[teacherRoomId].vaildWeeks = weekState[0];
        this.activityMap[teacherRoomId].remark = this.remark;
        activities[activities.length] = this.activityMap[teacherRoomId];
        if (weekState.length == 2) {
            var cloned = this.activityMap[teacherRoomId].clone();
            cloned.vaildWeeks = weekState[1];
            activities[activities.length] = cloned;
            // alert(cloned)
        }
        // alert(this.activityMap[teacherRoomId]);
    }
    return activities;
}

// 如果同一小节新设置的安排的周次与原有的安排周次有重叠就替换原有的设置, 如果没有重叠就新增
//true 替换，false 新增
// js 的 binary string 只支持32位, activity.vaildWeeks 太长, 所以不能用与来判断（没有bigInteger）
function validWeekOverlappingWith(other) {
    if (this.expLessonGroupIndexNo != null && other.expLessonGroupIndexNo != null && this.expLessonGroupIndexNo[0] == other.expLessonGroupIndexNo[0]) {
        return true;
    } else {
        return false;
    }
}

/**
 * all activities in each unit consists a ActivityCluster
 */
function ActivityCluster(year, courseId, courseName, weeks, expLessonGroupId, expLessonGroupIndexNo, remark) {
    this.year = year;
    var date = new Date();
    date.setFullYear(year, 11, 31);
    this.endAtSat = false;
    if (6 == date.getDay()) {
        this.endAtSat = true;
    }
    this.courseId = courseId;
    this.courseName = courseName;
    this.weeks = weeks;
    this.remark = remark;
    this.weeksMap = {};
    this.activityMap = {};
    this.add = addActivityToCluster;
    this.constructValidWeeks = constructValidWeeks;
    this.genActivities = constructActivities;

    this.expLessonGroupId = expLessonGroupId;
    this.expLessonGroupIndexNo = expLessonGroupIndexNo;
}