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[plack-app-gruntmaster.git] / js / 90-timers.js

function update_timer(timer){
	var start = parseInt(timer.dataset.start);
	var stop  = parseInt(timer.dataset.stop);
	var value = parseInt(timer.dataset.value);
	var now   = Math.floor(Date.now() / 1000);

	var left = stop - now;
	var total = stop - start;
	if(left < 0)
		left = 0;

	if(value) {
		value = Math.max(value * 3 / 10, value * left / total);
		timer.innerHTML = Math.floor(value);
	} else {
		var hours = left / 60 / 60;
		hours = hours < 10 ? '0' + hours : hours;
		var minutes = left / 60 % 60;
		minutes = minutes < 10 ? '0' + minutes : minutes;
		var seconds = left % 60;
		seconds = seconds < 10 ? '0' + seconds : seconds;
		timer.innerHTML = hours + ':' + minutes + ':' + seconds;
	}
}

$(() => $('.timer').each(item => {
	update_timer(item);
	setInterval(() => update_timer(item), 1000);
}));