Here is a simple timer example:
timer_example.bttpreset (46.2 KB)
The time is input in this format (examples):
1min
1h
1h 10min 5s
10min
30s
function parseDuration(duration) {
const units = {
h: 3600,
min: 60,
s: 1
};
// Regex to match the number followed by the unit (h, min, s)
const regex = /(\d+)(h|min|s)/g;
let totalSeconds = 0;
let match;
while ((match = regex.exec(duration)) !== null) {
const value = parseInt(match[1], 10);
const unit = match[2];
totalSeconds += value * units[unit];
}
return totalSeconds;
}
function formatDuration(seconds) {
const hours = Math.floor(seconds / 3600);
const minutes = Math.floor((seconds % 3600) / 60);
const secs = seconds % 60;
// Pad with zeros to ensure two digits for minutes and seconds
const formattedHours = String(hours).padStart(2, '0');
const formattedMinutes = String(minutes).padStart(2, '0');
const formattedSeconds = String(secs).padStart(2, '0');
return `${formattedHours}:${formattedMinutes}:${formattedSeconds}`;
}
async function startTimer() {
let duration = await get_string_variable("timerTime");
let durationInSeconds = parseDuration(duration);
timer(durationInSeconds);
}
async function timer(durationInSeconds = 10) {
if(durationInSeconds == 0) {
const updateDescription = {"BTTMenuItemText": "Time is up!", "BTTMenuItemBackgroundColor": "233, 0, 0, 255"};
await update_menu_item({"item_uuid": "1D974882-9376-4B09-81FC-E427F79CBD25", "json": JSON.stringify(updateDescription), "persist": true})
} else {
const updateDescription = {"BTTMenuItemText": formatDuration(durationInSeconds), "BTTMenuItemBackgroundColor": "0, 0, 0, 255"};
await update_menu_item({"item_uuid": "1D974882-9376-4B09-81FC-E427F79CBD25", "json": JSON.stringify(updateDescription), "persist": true})
setTimeout(() => {
timer(durationInSeconds-1);
}, 1000);
}
return "done"
}