// ==UserScript==
// @name           nyaa.si - Batch Download
// @description    Allows batch download of all displayed r###lts in one single click.
// @version        2023.03.16.23.02
// @author         MetalTxus
// @namespace      https://github.com/j###scc1993
// @grant          GM_xmlhttpRequest
// @icon           https://avatars3.githubusercontent.com/u/28658394?s=44
// @match          https://nyaa.si/*
// @require        https://code.jquery.com/jquery-3.2.1.min.js
// ==/UserScript==
/* globals jQuery */
(() => {
'use strict';
const delayBetweenDownloads = 150;
let downloadButton;
let magnets;
const appendBatchDownloadButton = () => {
magnets = jQuery(magnetsSelector);
const fileCount = magnets.length;
if (fileCount) {
downloadButton = jQuery(`
<a title="Download all" href class="mt-batch-download">
<i class="fa fa-fw fa-magnet"></i>
<span class="mt-batch-download-label">Download all (${fileCount})</span>
<i class="fa fa-fw fa-magnet"></i>
</a>
`);
downloadButton.click((event) => {
event.preventDefault();
downloadAll();
});
setButtonText();
jQuery('.torrent-list').append(downloadButton);
downloadButton
.wrap(`<td colspan="9" align="center">`)
.wrap(`<tr style="background: none;">`);
}
};
const setButtonText = () => {
downloadButton
.find(buttonLabelSelector)
.text(`Download all (${magnets.length})`);
};
const downloadAll = () => {
downloadNext(magnets.toArray());
};
const downloadNext = (anchors) => {
const anchor = anchors.pop();
const url = anchor.href.split('&dn=')[0];
const magnetTab = window.open(url);
setTimeout(() => magnetTab.close(), delayBetweenDownloads);
if (anchors.length) {
setTimeout(() => downloadNext(anchors), delayBetweenDownloads);
}
};
const onMutation = () => {
magnets = jQuery(magnetsSelector);
setButtonText();
};
const initialize = () => {
appendBatchDownloadButton();
window.onload = () => {
new MutationObserver(onMutation).observe(
document.querySelector('tbody'),
{ childList: true }
);
};
};
const magnetsSelector = 'a[href*="magnet:"]';
const buttonLabelSelector = '.mt-batch-download-label';
initialize();
})();