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index.js
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index.js
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const util = require('util');
const exec = util.promisify(require('child_process').exec);
const desktopIdle = require('desktop-idle');
const notifier = require('node-notifier');
const {formatDuration, intervalToDuration} = require('date-fns');
const warningTimeout = 20;
const hibernateTimeout = 30;
const pollInterval = 1 * 1000;
let prevTime = desktopIdle.getIdleTime();
let hasSentWarning = false;
let isHibernating = false;
async function runCommand(command) {
const {stdout, stderr, error} = await exec(command);
if (stderr) {
console.error('stderr:', stderr);
}
if (error) {
console.error('error:', error);
}
return stdout;
}
function durationToString(durationInSeconds) {
return formatDuration(
intervalToDuration({start: 0, end: durationInSeconds * 1000})
);
}
async function hibernate() {
const command = 'shutdown /h';
return runCommand(command);
}
setInterval(function timerIncrement() {
const newTime = desktopIdle.getIdleTime();
console.log(`prevTime: ${prevTime}`);
console.log(`newTime: ${newTime}`);
if (
newTime < hibernateTimeout &&
prevTime >= hibernateTimeout &&
hasSentWarning
) {
if (!isHibernating) {
notifier.notify({
title: 'Idle timer reset!',
message: `You've been idle for ${durationToString(
prevTime // we use prevTime instead of newTime because newTime is near 0
)}, but you're back so we've reset the 15 minute timer until the computer hibernates`,
});
}
// reset to initial state
hasSentWarning = false;
isHibernating = false;
}
if (
desktopIdle.getIdleTime() >= warningTimeout &&
!hasSentWarning &&
!isHibernating
) {
notifier.notify({
title: "You've been idle for 10 minutes!",
message:
'If you continue to be idle, we will automatically hibernate the computer in 5 minutes to conserve compute credits.',
});
hasSentWarning = true;
}
if (
desktopIdle.getIdleTime() >= hibernateTimeout &&
hasSentWarning &&
!isHibernating
) {
// hibernate();
console.log("pretend we're hibernating right now");
isHibernating = true;
}
prevTime = newTime;
}, pollInterval);