// ==UserScript==
// @name         TikTok Watermarkless Video Downloader
// @namespace    http://tampermonkey.net/
// @version      1.1
// @description  Replace TikTok's default "Download video" button with a non-watermarked download option
// @author       LukysGaming
// @match        https://www.tiktok.com/*
// @grant        GM_download
// @run-at       document-idle
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';

    // Create a MutationObserver to monitor DOM changes
    const observer = new MutationObserver(() => {
        const downloadButton = document.querySelector('li.css-1l1tdw6-LiItemWrapper.e5bhsb11');
        const videoElement = document.querySelector('video');

        // Check if both the download button and video element exist
        if (downloadButton && videoElement) {
            const sourceURL = videoElement.querySelector('source')?.src;

            if (sourceURL) {
                // Override the default click event for the download button
                downloadButton.addEventListener('click', (event) => {
                    event.stopImmediatePropagation();
                    event.preventDefault();
                    // Use GM_download to download the video without watermark
                    GM_download(sourceURL, 'vid.mp4');
                }, { once: true }); // Add listener only once

                // Change the text of the download button to indicate watermark-free download
                const spanElement = downloadButton.querySelector('span');
                if (spanElement) {
                    spanElement.textContent = 'Download video (No Watermark)';
                }
            }
        }
    });

    // Start observing the DOM for any changes
    observer.observe(document.body, {
        childList: true,
        subtree: true
    });

})();