幫助IVE學生計算出席率及缺席率
当前为
// ==UserScript==
// @name IVE出席率及缺席率計算器
// @namespace undefined
// @version 1.0.3
// @description 幫助IVE學生計算出席率及缺席率
// @author Miklet
// @match *://myportal.vtc.edu.hk/*
// @require https://code.jquery.com/jquery-latest.js
// @run-at document-start
// @grant unsafeWindow
// ==/UserScript==
(function() {
'use strict';
$(function() {
var insert_btn = document.createElement("button");
insert_btn.setAttribute("style",";padding:10px;margin:10px;background-color:#555;color:#fff;position:absolute;right:0;bottom:0;border:0;");
insert_btn.setAttribute ("id","calculate_btn");
insert_btn.innerHTML = "計算出缺率";
if($('table.hkvtcsp_wording').length){
document.body.insertBefore(insert_btn, document.body.firstChild);
document.getElementById ("calculate_btn").addEventListener (
"click", function(){
var input_time = prompt("請輸入該單元的總時數");
if(input_time !== "" && input_time == parseInt(input_time, 10)){
var executeCalculation = calculate(input_time);
}else{
alert('發生了錯誤');
}
}, false
);
}
function time_convert(input_min) {
var output_hr = Math.floor( input_min / 60);
var output_min = input_min % 60;
if (output_min !== 0) {
return output_hr + "小時" + output_min + "分鐘";
} else {
return output_hr + "小時";
}
}
function calculate(tt_input_time) {
var tb_array = [];
var headers = [];
$('table.hkvtcsp_wording th').each(function(index, item) {
headers[index] = $(item).text();
});
$('table.hkvtcsp_wording tr').has('td').each(function() {
var arrayItem = {};
$('td', $(this)).each(function(index, item) {
arrayItem[headers[index]] = $(item).text();
});
tb_array.push(arrayItem);
});
var att_lesson = 0;
var abs_lesson = 0;
var late_lesson = 0;
var tt_lesson_time = 0;
var tt_att_time = 0;
var tt_abs_time = 0;
var att_time;
var abs_time;
var i=0;
for (i = 0; i < tb_array.length; i++) {
var lesson_time_array = tb_array[i]['課堂時間'].split("-");
//Lesson Count
switch (tb_array[i]['']) {
case 'Present':
att_lesson++;
break;
case 'Late':
late_lesson++;
break;
case 'Absent':
abs_lesson++;
break;
}
//ABS & ATT Caculate
var arrived_time = tb_array[i]['出席時間'];
var row_lesson_time_start = new Date();
var lesson_time_array_0 = lesson_time_array[0].split(':');
row_lesson_time_start.setHours(lesson_time_array_0[0], lesson_time_array_0[1]);
var row_lesson_time_end = new Date();
var lesson_time_array_1 = lesson_time_array[1].split(':');
row_lesson_time_end.setHours(lesson_time_array_1[0], lesson_time_array_1[1]);
var row_lesson_time_arrived = new Date();
if (arrived_time != '-') {
arrived_time = arrived_time.split(':');
row_lesson_time_arrived.setHours(arrived_time[0], arrived_time[1]);
if (row_lesson_time_arrived > row_lesson_time_start.setMinutes(row_lesson_time_start.getMinutes() + 10)) {
row_lesson_time_start.setHours(lesson_time_array_0[0], lesson_time_array_0[1]);
att_time = (row_lesson_time_end - row_lesson_time_arrived) / 1000 / 60;
abs_time = (row_lesson_time_arrived - row_lesson_time_start) / 1000 / 60;
} else {
row_lesson_time_start.setHours(lesson_time_array_0[0], lesson_time_array_0[1]);
att_time = (row_lesson_time_end - row_lesson_time_start) / 1000 / 60;
abs_time = 0;
}
} else {
att_time = 0;
abs_time = (row_lesson_time_end - row_lesson_time_start) / 1000 / 60;
}
tt_lesson_time = tt_lesson_time + ((row_lesson_time_end - row_lesson_time_start) / 1000 / 60);
tt_att_time = tt_att_time + att_time;
tt_abs_time = tt_abs_time + abs_time;
}
var time_remain;
if(tt_input_time*60*0.3>=tt_abs_time){
time_remain = (tt_input_time*60*0.3)-tt_abs_time;
time_remain = time_convert(time_remain);
}else{
time_remain = "/";
}
alert("已上課堂時數 : "+time_convert(tt_lesson_time)+"\n\n"+
"總出席時數 : "+time_convert(tt_att_time)+"\n"+
"出席率 : "+(tt_att_time / (tt_input_time*60) * 100).toFixed(2)+"%\n\n"+
"總缺席時數 : "+time_convert(tt_abs_time)+"\n"+
"缺席率 : "+(tt_abs_time / (tt_input_time*60) * 100).toFixed(2)+"%\n\n"+
"每小時缺席率 : "+(60 / (tt_input_time*60) * 100).toFixed(2)+"%\n"+
"剩餘可缺席時數 : "+time_remain
);
}
});
})();