// ==UserScript==
// @name         UTAS auto extend session
// @namespace    https://fuwa.dev
// @version      0.1
// @description  prevent session timeout in UTAS
// @author       fuwa
// @match        https://utas.adm.u-tokyo.ac.jp/campusweb/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=u-tokyo.ac.jp
// @grant        none
// ==/UserScript==
(function() {
'use strict';
if (!document.getElementById('portaltimer')) return;
if (typeof extendSession !== 'function') return;
if (typeof session_time_out !== 'string') return;
const timeout = parseFloat(session_time_out) * 60 * 1000;
const chk = document.createElement('input');
chk.type = 'checkbox';
chk.checked = true;
chk.onclick = (e) => { e.stopPropagation(); };
// chk.onchange = update;
const targ = document.querySelector('#portaltimer li.txt');
targ.insertBefore(chk, targ.firstChild);
const update = () => {
if (!chk.checked) return;
const t = timeout - (new Date().getTime() - session_last_acc_time.getTime());
console.log(t / 1000);
if (t < 10 * 60 * 1000) { // 10 min
extendSession();
}
};
setInterval(update, 10000);
console.log(chk);
})();