Automatically buys products on Amazon based on query parameters
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// ==UserScript==
// @name Amazon Purchase Automator
// @namespace http://tampermonkey.net/
// @version 1.3.2
// @description Automatically buys products on Amazon based on query parameters
// @match https://www.amazon.com/*
// @grant none
// @run-at document-end
// ==/UserScript==
(function() {
'use strict';
function waitForElement(selector, callback, interval = 200, timeout = 10000) {
const startTime = Date.now();
const checkInterval = setInterval(() => {
const element = document.querySelector(selector);
if (element) {
clearInterval(checkInterval);
callback(element);
} else if (Date.now() - startTime > timeout) { // Timeout to avoid infinite waiting
clearInterval(checkInterval);
console.error(`Element ${selector} not found within ${timeout}ms`);
}
}, interval);
}
function waitForElementXPath(xpath, callback, interval = 200) {
const checkInterval = setInterval(() => {
const xpathResult = document.evaluate(xpath, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null);
const element = xpathResult.singleNodeValue;
if (element) {
clearInterval(checkInterval);
callback(element);
}
}, interval);
}
function buyNew() {
// This function remains unchanged, provided for context
}
function usedonly() {
const addButtonUbb = document.querySelector('#add-to-cart-button-ubb');
waitForElement('#add-to-cart-button-ubb', (addToCartButton) => {
addToCartButton.click();
proceedToCheckout();
}, 3000);
}
function buyUsed() {
const usedOffers = document.querySelector('#all-offers-display');
if (usedOffers) {
// Click on the '#all-offers-display' if it exists
waitForElement('#all-offers-display', (allOffersDisplay) => {
allOffersDisplay.click();
// After clicking on the offers display, wait for and click on a specific offer by XPath
waitForElementXPath("//*[@id='a-autoid-2-offer-1']/span/input", (specificOfferButton) => {
specificOfferButton.click();
// Navigate to the cart page before proceeding to checkout
setTimeout(() => {
window.location.href = 'https://www.amazon.com/gp/cart/view.html';
// Wait for the page to load and then proceed to checkout
setTimeout(() => {
proceedToCheckout();
}, 2000); // Wait 2 seconds for the cart page to fully load before proceeding
}, 1000); // Wait 1 second to ensure the click action has been processed
}, 500);
}, 500);
} else {
// Fallback to other add to cart buttons if #all-offers-display does not exist
const addButtonUbb = document.querySelector('#add-to-cart-button-ubb');
const addButton = document.querySelector('#add-to-cart-button');
if (addButtonUbb) {
waitForElement('#add-to-cart-button-ubb', (addToCartButton) => {
addToCartButton.click();
proceedToCheckout();
}, 500);
} else if (addButton) {
waitForElement('#add-to-cart-button', (addToCartButton) => {
addToCartButton.click();
waitForElement('#attachSiNoCoverage', (noCoverageButton) => {
noCoverageButton.click();
proceedToCheckout();
}, 500);
}, 500);
}
}
}
function proceedToCheckout() {
waitForElement('input[name="proceedToRetailCheckout"]', (proceedToCheckoutButton) => {
proceedToCheckoutButton.click();
// After clicking 'Proceed to Checkout', wait for the 'Place Your Order' button
waitForElement('input[name="placeYourOrder1"]', (placeOrderButton) => {
placeOrderButton.click();
}, 500); // Adjust the delay as needed based on typical page load times
}, 500); // Initial wait for 'Proceed to Checkout' button
}
const params = new URLSearchParams(window.location.search);
const purchaseType = params.get('purchaseType');
if (purchaseType === 'new') {
buyNew();
} else if (purchaseType === 'used') {
buyUsed();
} else if (purchaseType === 'usedonly') {
usedonly();
}
else {
// Fallback or other logic
}
})();