"use strict";
// ==UserScript==
// @name        OptiFine Download Links
// @namespace   zomo
// @match       https://optifine.net/*
// @grant       none
// @version     1.0
// @author      zomo
// @description automatically grab optifine links through the ads
// ==/UserScript==
const onhover = false; // when to load link, false will load immediately
async function getDownload(href) {
    let resp = await fetch(href);
    let text = await resp.text();
    let match = text.match(/<a href=['"](downloadx.*?)['"]/i);
    if (match) {
        return match[1];
    }
    return null;
}
function attachFetchDownloadLink(a, depth = 0) {
    function run() {
        a.innerText = 'Loading';
        let url = new URL(a.href);
        if (url.pathname === '/adloadx') {
            getDownload(a.href).then(downloadUrl => {
                if (downloadUrl) {
                    a.href = downloadUrl;
                    a.innerText = 'Download';
                }
                else {
                    a.innerText = 'Failed';
                    if (onhover)
                        attachFetchDownloadLink(a, ++depth);
                    else
                        setTimeout(() => attachFetchDownloadLink(a, ++depth), 1000);
                }
            });
        }
    }
    if (depth > 5)
        return;
    if (onhover) {
        a.addEventListener('mouseover', run, { once: true });
    }
    else {
        run();
    }
}
addEventListener('load', () => {
    document.querySelectorAll('a').forEach(a => {
        let href = new URL(a.href);
        if (href.hostname === 'adfoc.us') {
            let params = href.searchParams;
            if (params.has('url')) {
                let url = params.get('url')?.replace('http://', 'https://');
                if (url) {
                    a.href = url;
                    attachFetchDownloadLink(a);
                }
            }
        }
    });
});