// ==UserScript==
// @name         Reddit upvote /r/The_Donald
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  Upvote /r/The_Donald
// @author       You
// @match        https://www.reddit.com/r/The_Donald*
// @grant        none
// ==/UserScript==

// Get children of siteTable into list.
var threads = document.getElementById("siteTable");
threads = threads.getElementsByClassName("link");

var timer;
var minTime = 1;
var maxTime = 10;

var i = 0;

// Generate random timer for upvote
function setTimer() {

	timer = Math.floor(Math.random() * 100 * 1000) / maxTime + minTime;
}

// Upvote thread
function upvoteThread(thread) {

	// check for likes/unvoted element
	thread.getElementsByClassName("up")[0].click();
}

function setUpvoteTimeout() {

	while (i < threads.length) {

		if (threads[i].getElementsByClassName("upmod").length > 0) {

			i = i + 1;

			continue;
		}

		upvoteThread(threads[i]);
		i = i + 1;

		if (i < threads.length) {

			setTimer();
			window.setTimeout(setUpvoteTimeout, timer, threads[i]);
		}

		break;
	}

}

if (threads.length > 0) {

	setTimer();
	window.setTimeout(setUpvoteTimeout, setTimer());
}