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let minsPerRound = Number(sessionStorage.getItem("minsPerRound")) || 12;
let timerRunningFlag = Number(sessionStorage.getItem("timerRunningFlag")) || 0;
let deadline = Number(sessionStorage.getItem("deadline")) || new Date().getTime();
let clock = 0;
function setTimer(m, s) {
let timer = document.getElementById("timer-display");
m = m < 10 ? ("0" + m) : m;
s = s < 10 ? ("0" + s) : s;
timer.value = `${m}:${s}`;
}
function setSessionData() {
sessionStorage.setItem("deadline", deadline);
sessionStorage.setItem("minsPerRound", minsPerRound);
sessionStorage.setItem("timerRunningFlag", timerRunningFlag);
}
function resetTimer() {
clearInterval(clock);
setTimer(minsPerRound, 0);
timerRunningFlag = 0;
setSessionData();
}
function updateTimer(milliseconds) {
const m = Math.floor((milliseconds % (1000 * 60 * 60)) / (1000 * 60));
const s = Math.floor((milliseconds % (1000 * 60)) / 1000);
setTimer(m, s);
}
function refreshTimer() {
const now = new Date().getTime();
const millisecondsToDeadline = deadline - now;
if (millisecondsToDeadline > 0) {
updateTimer(millisecondsToDeadline);
return;
}
resetTimer();
const notification = new Notyf({
duration: 30 * 1000,
position: {x: 'center', y: 'top'},
types: [{
type: 'success',
background: 'indianred',
duration: 1000 * 1000,
dismissible: true
}]
});
notification.success("Round completed");
}
function startTimer(fresh) {
if (fresh) {
now = new Date().getTime();
const millisecondsToDeadline = minsPerRound * 60 * 1000;
deadline = now + millisecondsToDeadline;
}
timerRunningFlag = 1;
setSessionData();
clock = setInterval(refreshTimer, 1000);
}
window.onload = function () {
if (timerRunningFlag)
startTimer(0);
else resetTimer();
document.getElementById("timer-start").addEventListener('click', ()=> {
if (timerRunningFlag != 0) return;
startTimer(1);
});
document.getElementById("timer-stop").addEventListener('click', ()=>{
resetTimer();
});
document.getElementById("timer-inc").addEventListener('click', ()=> {
if (timerRunningFlag == 0) {
minsPerRound += 1;
resetTimer();
}
});
document.getElementById("timer-dec").addEventListener('click', ()=> {
if (timerRunningFlag == 0 && minsPerRound != 0) {
minsPerRound -= 1;
resetTimer();
}
});
}
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