purchaser.js

// ==UserScript==
// @name         Purchaser
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://www.mediamarkt.nl/*
// @match        https://www.computop-paygate.com/*
// @icon         https://www.google.com/s2/favicons?domain=mediamarkt.nl
// @grant GM_setValue
// @grant GM_getValue
// ==/UserScript==

function sendMessage(settings, message) {
    fetch("https://stupid-bot.bottled.codes?to=" + settings.phone + "&m=" + message);
}

function start_purchase_flow(settings) {
    var price_button = document.getElementsByClassName("price-button");
    console.log(price_button);

    if(price_button.length > 0) {
        console.log("begin purchase flow")
        GM_setValue("purchasing", true);
        sendMessage(settings, "available")
    } else {
        return false;
    }

    price_button.item(0).click();

    setTimeout(() => {
        document.getElementsByClassName("accept").item(0).getElementsByTagName("a").item(1).click();
    }, 4000);

    return true;
}

function funnel_start(settings) {
    console.log("here we go!");
    // todo: send text message
    setTimeout(() => {
        var next_button = document.getElementsByClassName("cobutton-next")
        var cc = document.getElementsByClassName("creditcard__xpay");
        var ccDetails = document.getElementsByName("creditCardHolder");
        var finalButton = document.getElementsByClassName("submit-button");

        if(cc.length) {
            cc.item(0).click();
        }

        if(ccDetails.length > 0) {
            document.getElementsByName("creditCardHolder").item(0).value = settings.name;
            document.getElementsByName("KKNr").item(0).value = settings.cardNumber;
            document.getElementsByName("KKName").item(settings.cardType).click();
            document.getElementsByName("KKMonth").item(0).value = settings.cardExpMonth;
            document.getElementsByName("KKYear").item(0).value = settings.cardExpYear;
            document.getElementsByName("CCCVC").item(0).value = settings.cardCvv;
            finalButton.item(0).click();
            sendMessage(settings, "doit")
        }

        if(next_button.length === 0) return false;

        next_button.item(next_button.length - 1).click();
        console.log("clicked next")
        funnel_start(settings);
    }, 2000);
}

(function() {
    'use strict';

    var reset = true;

    if(reset) {
        if(GM_getValue("reset", true)) {
            GM_setValue("purchasing", false);
            GM_setValue("reset", false);
        }
    } else {
        GM_setValue("reset", true);
    }

    var settings = {
        product: "_hama-clip-on-microfoon-1547951.html",
        name: "NAME",
        cardNumber: "CARD",
        cardType: 1,
        cardExpMonth: "12",
        cardExpYear: "2025",
        cardCvv: "CVV",
        phone: "PHONE"
    };

    if(settings.product === null) {
        console.log("nothing to do!");
        return;
    }

    var reloadTO = setTimeout(() => {
        console.log("going to product page");
        if(GM_getValue("purchasing", false)) return;
        if(location.href !== "https://www.mediamarkt.nl/nl/product/" + settings.product) {
            location.href = "https://www.mediamarkt.nl/nl/product/" + settings.product;
            return;
        }
        location.reload();
    }, 30000);

    if(start_purchase_flow(settings)) return;

    if(funnel_start(settings)) return;
})();