User script to auto-join all giveaways from indiegala.com.

indiegala-autojoin.user.js

// ==UserScript==
// @name         AutoJoin IndieGala Giveaways
// @namespace    http://sergiosusa.com
// @version      0.13
// @description  Autojoin for IndieGala Giveaways!
// @author       Sergio Susa (http://sergiosusa.com)
// @match        https://www.indiegala.com/giveaways*
// @grant        none
// @require  http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js
// ==/UserScript==

/******* Global Variables *******/
var reloading = 600000;
var nextPageTime = 40000;
var minCoins = 5;
var minLevel = 3;
/******* Script Variables *******/
var index = 0;
var giveawayButtons;
var intervalId;
var totalCoins = 0;
/*******************************/

(function () {
    'use strict';

    $.noConflict();

    jQuery('document').ready(function () {

        if (window.location.href === 'https://www.indiegala.com/giveaways') {
            insertGraphicElements();
        }

        setTimeout(function () {
            removeExtraOdds();
            totalCoins = getTotalCoinsAvailable();

            if (totalCoins < minCoins) {
                reloadPage(reloading);
                return;
            }

            if (window.location.href.indexOf('/expiry/asc') !== -1) {

                giveawayButtons = jQuery('aside.animated-coupon');

                if (giveawayButtons.length > 0) {

                    intervalId = setInterval(function () {

                        giveawayButtons[index].click();
                        index++;

                        if (index >= giveawayButtons.length) {
                            clearInterval(intervalId);
                            index = 0;
                        }

                    }, 2000);
                }

                setTimeout(function () {
                    var page = calculateNextPage();
                    redirectToPage(page);
                }, nextPageTime);
            }

        },2000);

    });
})();

/***********************************************************
 *  Utility Functions
 **********************************************************/

function insertGraphicElements() {
    var buttonContainer = jQuery("div.cover-text")[0];
    var anchor = document.createElement('a');
    anchor.innerHTML = 'Join Giveaways';
    anchor.href = '#';
    anchor.className = 'palette-background-1 palette-color-6';
    anchor.onclick = startJoin;
    buttonContainer.prepend(anchor);
}

function removeExtraOdds()
{
    var type = jQuery(".extra-type");
    var element = type.splice(1,1);

    while( 0 !== element.length){
        if (element[0].innerHTML.trim()!='single ticket'){
            element[0].parentNode.parentNode.parentNode.parentNode.parentNode.remove();
        }
        element = type.splice(1,1);
    }
}

function getTotalCoinsAvailable() {
    jQuery('div.account-galamoney img:last-child')[1].remove();
    return $('div.account-galamoney')[2].innerText.replace('GalaSilver', '').trim();
}

function startJoin() {
    localStorage.setItem("actualLevel", minLevel);
    redirectToPage(1);
}

function redirectToPage(page) {
    window.location = 'https://www.indiegala.com/giveaways/[NUM_PAGE]/expiry/asc/level/[MIN_LEVEL]'.replace('[NUM_PAGE]', page).replace('[MIN_LEVEL]', localStorage.getItem("actualLevel"));
}

function calculateNextPage() {
    var page = window.location.href.replace('https://www.indiegala.com/giveaways/', '').replace('/expiry/asc/level/' + localStorage.getItem("actualLevel"), '');

    page = parseInt(page) + 1;

    if (page > calculateLastPage()) {

        var newLevel = localStorage.getItem("actualLevel");
        newLevel = newLevel - 1;

        if (newLevel < 0) {
         newLevel = minLevel;
        }

        localStorage.setItem("actualLevel", newLevel );
        page = 1;
    }

    return page;
}

function calculateLastPage() {
    var lastPage = 1;

    if(jQuery("div.page-nav div.page-link-cont:last-child a")[0] !== undefined) {
        lastPage = parseInt(jQuery("div.page-nav div.page-link-cont:last-child a")[0].href.replace('https://www.indiegala.com/giveaways/', '').replace('/expiry/asc/level/' + localStorage.getItem("actualLevel"), ''));
    }
    return lastPage;
}

function reloadPage(milliseconds) {
    setInterval(function () {
        window.location.reload();
    }, milliseconds);
}

/***********************************************************
 *  Override Functions
 **********************************************************/
window.confirm = function (message, callback, caption) {
    return true;
};