// ==UserScript==
// @name         迅雷电影天堂磁力链批量下载
// @namespace    http://tampermonkey.net/
// @version      2024-09-29
// @description  迅雷电影天堂 | 详情页 | 磁力链列表上方标题行新增【批量下载磁力链】超链接
// @author       JoyofFire
// @match        https://www.xl720.com/thunder/*.html
// @grant        none
// @run-at       document-idle
// @license      MIT
// ==/UserScript==
(function() {
'use strict';
const selectors = {
title: ".entry-content > h2:last-of-type",
anchor: "#zdownload .down_btn_cl a",
};
const values = {
magnet_protocal: "magnet:",
dl_btn_text: "> 批量下载磁力链 <",
new_tab: "_blank",
};
const $ = (querySelectorAll) => (x) => [...querySelectorAll(x)];
const dom$ = $(document.querySelectorAll.bind(document));
const el$ = (el) => $(el.document.querySelectorAll.bind(el));
const anchor_to_link = (a) => a.href;
const is_magnet = (x) => `${x}`.startsWith(values.magnet_protocal);
const anchors_to_links = (xs) => xs.map(anchor_to_link).filter(is_magnet);
const text_to_blob = (x) => new Blob([x], { type: "text/plain" });
const maybe_title = () => new Promise((resolve, reject) => {
const matches = dom$(selectors.title);
const _return = matches.length > 0 ? resolve : reject;
_return(matches.at(-1));
});
const append_href_to_title = (url) => (title) => {
const a = document.createElement("a");
a.target = values.new_tab;
a.textContent = values.dl_btn_text;
a.href = url;
title.append(a);
return { title, url };
};
const handle_error = (error) => {
if (!error) {
alert("找不到标题行！无法添加按钮！");
return;
}
console.error(error);
};
const main = () => {
const anchors = dom$(selectors.anchor);
const links = anchors_to_links(anchors);
const links_text = links.join("\n");
const text_blob = text_to_blob(links_text);
const text_url = URL.createObjectURL(text_blob);
maybe_title()
.then(append_href_to_title(text_url))
.then(console.info.bind(console))
.catch(handle_error);
};
main();
})();