// ==UserScript==
// @name         Bunpro: Egg Timer
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Times your review session.
// @author       Kumirei
// @match        https://bunpro.jp/study
// @require      https://greasyfork.org/scripts/5392-waitforkeyelements/code/WaitForKeyElements.js?version=115012
// @grant        none
// @downloadURL none
// ==/UserScript==

(function() {
		var elapsed = 0;
		$('.help-button').after('<div id="egg-timer" class="help-button" style="left: 60px;">00:00</div>');
		setInterval(function() {
				elapsed++;
				var seconds = String(elapsed % 60);
				if (seconds < 10) seconds = '0' + seconds;
				var minutes = String(Math.floor(elapsed/60));
				if (minutes < 10) minutes = '0' + minutes;
				var hours = '';
				if (minutes > 59) {
						hours = String(Math.floor(minutes/60));
						if (hours < 10) hours = '0' + hours;
						hours += ':';
				}
				var timestamp = minutes + ':' + seconds;
				$('#egg-timer')[0].innerText = timestamp;
		}, 1000);
})();