// ==UserScript==
// @name         Bunpro: Egg Timer
// @namespace    http://tampermonkey.net/
// @version      0.3.4
// @description  Times your review session.
// @author       Kumirei
// @include      *bunpro.jp/*
// @exclude      *community.bunpro.jp*
// @require      https://greasyfork.org/scripts/5392-waitforkeyelements/code/WaitForKeyElements.js?version=115012
// @require      https://greasyfork.org/scripts/370623-bunpro-helpful-events/code/Bunpro:%20Helpful%20Events.js?version=615700
// @grant        none
// @downloadURL none
// ==/UserScript==

(function() {
	var start = Date.now();
	var interval = false;
	$('HTML')[0].addEventListener('new-review-item', ()=>{
		if ($('.review__stats.review-count-tracking')[0].innerText == '0/0') {
			$('.home-dropdown').after('<div id="egg-timer" class="help-button" style="left: 60px; top: 0; padding: 0;">00:00</div>');
			start = Date.now();
			if (interval != false) clearInterval(interval);
			interval = setInterval(function() {
				var location = window.location.href;
				if (window.location.href.match(/(study)|(cram)|(learn)/) == null)  clearInterval(interval);
				else {
					var elapsed = ((Date.now()-start)/1000).toFixed()
					var seconds = String(elapsed % 60);
					if (seconds < 10) seconds = '0' + seconds;
					var minutes = String(Math.floor(elapsed/60) % 60);
					if (minutes < 10) minutes = '0' + minutes;
					var hours = '';
					if (elapsed/60 >= 60) {
						hours = String(Math.floor(elapsed/3600));
						if (hours < 10) hours = '0' + hours;
						hours += ':';
					}
					var timestamp = hours + minutes + ':' + seconds;
					$('#egg-timer')[0].innerText = timestamp;
				}
			}, 1000);
		}
	});
})();