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let params;
let cur_seconds = null;
let timer_id;
let cd;
const page = document.getElementById("page");
function setupCountdown() {
var prompt_text = "";
var progress_bar = "";
params = new URLSearchParams(document.location.search);
for ([key, value] of params.entries()) {
console.log(`${key}: ${value}`);
}
switch (params.get("cdstyle")) {
case "labeled_bar":
let label_text = params.get("label_text");
prompt_text = `<div id="prompt">${label_text}</div>`;
progress_bar = `<div id="bar"><div id="progress"></div></div>`;
break;
case "bar":
progress_bar = `<div id="bar"><div id="progress"></div></div>`;
break;
}
page_template = `
${prompt_text}
${progress_bar}
<div id="countdown">
<div id="minutes">00</div>
<div id="separator">:</div>
<div id="seconds">00</div>
</div>
`;
page.innerHTML = page_template;
cd = document.getElementById("countdown");
let prompt = document.getElementById("prompt");
cur_seconds = parseInt(params.get("duration"));
if (params.get("f_family") !== "") {
cd.style.fontFamily = params.get("f_family");
if (prompt) {
document.getElementById("prompt").style.fontFamily = params.get("f_family");
}
}
cd.style.color = params.get("f_color");
if (document.getElementById("progress")) {
document.getElementById("progress").style.backgroundColor = params.get("b_color");
}
draw();
timer_id = window.setInterval(tick, 1000);
}
function tick() {
if (cur_seconds == 0) {
while (cd.firstChild) {
cd.removeChild(cd.firstChild);
}
let end_msg = document.createElement("div");
end_msg.id = "endmsg";
end_msg.textContent = params.get("end_text");
cd.appendChild(end_msg);
window.clearInterval(timer_id);
return;
}
cur_seconds--;
draw();
}
function draw() {
if (document.getElementById("progress")) {
draw_bar();
}
document.getElementById("minutes").textContent = zero_pad(Math.floor(cur_seconds / 60));
document.getElementById("seconds").textContent = zero_pad((cur_seconds % 60));
}
function draw_bar() {
document.getElementById("progress").style.width = (((params.get("duration") - cur_seconds) / params.get("duration")) * 100) + "%";
}
function zero_pad(num) {
if (num < 10) {
return "0"+num;
} else {
return num;
}
}
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