// ==UserScript==
// @name         Karakterkalkulator
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  Se gjennomsnittskarakter i fsweb!
// @author       You
// @match        https://fsweb.no/studentweb/r###ltater.jsf
// @icon         https://www.google.com/s2/favicons?sz=64&domain=fsweb.no
// @grant        none
// @license MIT
// ==/UserScript==
function fractConverter(fract)
{
if(fract==0 || Math.abs(fract) < 0.33333)
{
return "";
}
else if (fract < 0)
{
return "-";
}
return "+";
}
function main()
{
const rows = document.querySelectorAll(".r###ltatTop");
let weigthSum = 0;
let gradeAvg = 0;
let gradeLookup = {"A":5,"B":4,"C":3,"D":2,"E":1,"F":0};
let gradeLookup2 = {5:"A",4:"B",3:"C",2:"D",1:"E",0:"F"};
for(let row of rows)
{
try{
var gradeEl = row.querySelector("td.col6R###ltat.textAlignRight > div.infoLinje > span");
var weightEl = row.querySelector("td.col7Studiepoeng.textAlignRight > span");
var grade = gradeEl.innerHTML;
var weigth = weightEl.innerHTML;
grade = gradeLookup[grade];
weigth = Number(weigth)
weigthSum += weigth
gradeAvg += weigth*grade;
}catch(e){continue;}
}
gradeAvg /= weigthSum;
gradeAvg = gradeAvg.toFixed(2);
const rounded = Math.round(gradeAvg);
const prefix = gradeLookup2[rounded];
const suffix = fractConverter(gradeAvg-rounded);
const gradeLetter = prefix + suffix;
const el = document.querySelector("p.table-footer");
el.innerHTML += "<span style=\"padding-left: 30px;\">Gjennomsnitt: "+gradeLetter+" ("+gradeAvg+"GPA)</span>";
}
(function() {
'use strict';
window.onload = main;
})();