DeepSeek generated Tamper monkey script to grab OfferID from an Amazon EU product with a button + notifications

grab_offerid_amazon_eu.js

// ==UserScript==
// @name Amazon OfferID Grabber
// @namespace    http://tampermonkey.net/
// @version      0.3
// @description  Copies Amazon product offer ID from input field with id "offerListingId" to clipboard
// @author       Your Name
// @match        https://www.amazon.de/*
// @match        https://www.amazon.fr/*
// @match        https://www.amazon.co.uk/*
// @match        https://www.amazon.it/*
// @match        https://www.amazon.es/*
// @icon         https://www.amazon.com/favicon.ico
// @grant        GM_setClipboard
// @grant        GM_notification
// ==/UserScript==

(function() {
    'use strict';

    function getOfferId() {
        const offerInput = document.getElementById('offerListingID');
        console.log(offerInput);
        if (offerInput && offerInput.type === 'hidden') {
            return offerInput.value;
        }
        return null;
    }

    function createButton() {
        const btn = document.createElement('button');
        btn.innerHTML = 'Copy Offer ID';
        btn.id = 'offerIdBtn'; // Add an ID to the button
        btn.style.cssText = `
            padding: 8px 16px;
            background: #ff9900;
            color: white;
            border: none;
            border-radius: 3px;
            cursor: pointer;
            margin-bottom: 10px;
            font-family: 'Amazon Ember', Arial, sans-serif;
            font-size: 14px;
        `;

        btn.addEventListener('click', () => {
            const offerId = getOfferId();
            if (offerId) {
                GM_setClipboard(offerId, 'text');
                showNotification('✅ Offer ID copied to clipboard!', 2000);
            } else {
                showNotification('❌ Offer ID not found!', 3000);
                btn.style.background = '#cc0000';
                setTimeout(() => btn.style.background = '#ff9900', 500);
            }
        });

        return btn;
    }

    function showNotification(message, duration) {
        const notification = document.createElement('div');
        notification.textContent = message;
        notification.style.cssText = `
            position: fixed;
            top: 20px;
            right: 20px;
            padding: 12px 20px;
            background: #333;
            color: white;
            border-radius: 4px;
            z-index: 9999;
            font-family: 'Amazon Ember', Arial, sans-serif;
            box-shadow: 0 2px 5px rgba(0,0,0,0.2);
        `;

        document.body.appendChild(notification);
        setTimeout(() => notification.remove(), duration);
    }

    function insertButton() {
        const productTitle = document.getElementById('productTitle');
        if (productTitle && !document.getElementById('offerIdBtn')) {
            const container = document.createElement('div');
            container.style.marginBottom = '15px';
            container.appendChild(createButton());
            productTitle.parentNode.insertBefore(container, productTitle);
        }
    }

    const observer = new MutationObserver(() => {
        insertButton();
    });

    observer.observe(document, {
        childList: true,
        subtree: true
    });

    // Initial check in case the page is already loaded
    insertButton();
})();