// ==UserScript==
// @name         Shortside
// @version      1.4.4
// @description  Redirects the configured websites to third-party privacy-respecting front ends.
// @author       examosa
// @license      AGPLv3-or-later
// @homepageURL  https://gist.github.com/examosa/50eb28bc16a006b62b3f43893ab457e7/
// @updateURL    https://gist.github.com/examosa/50eb28bc16a006b62b3f43893ab457e7/raw/shortside.user.js
// @downloadURL  https://gist.github.com/examosa/50eb28bc16a006b62b3f43893ab457e7/raw/shortside.user.js
// @icon         https://nobsdelivr.private.coffee/gh/webalys-hq/streamline-vectors/plump/gradient/interface-essential/shuffle.svg
// @match        https://www.fandom.com/*
// @match        https://www.geeksforgeeks.org/*
// @match        https://genius.com/*
// @match        https://www.instagram.com/*
// @match        https://www.medium.com/*
// @match        https://medium.com/*
// @match        https://stackoverflow.com/*
// @match        https://www.reddit.com/*
// @match        https://*.youtube.com/*
// @match        https://www.quora.com/*
// @match        https://www.reuters.com/*
// @match        https://www.tumblr.com/*
// @match        https://twitter.com/*
// @match        https://www.urbandictionary.com/*
// @match        https://x.com/*
// @run-at       document-start
// @allFrames    false
// @noframes
// ==/UserScript==

stop();

function getRedirect() {
  const hashPath = (...urls) =>
    urls.map((href) => (url) => {
      const { pathname } = url;
      url.href = href;
      url.hash = pathname.slice(1);
    });

  const instances = {
    anonymousoverflow: [
      'https://code.whatever.social',
      'https://ao.vern.cc',
      'https://overflow.lunar.icu',
      'https://overflow.adminforge.de',
      'https://overflow.hostux.net',
      'https://ao.bloat.cat',
      'https://ao.owo.si',
      'https://overflow.freedit.eu',
      'https://anonoverflow.hyperreal.coffee',
      'https://overflow.r4fo.com',
      'https://overflow.ducks.party',
      'https://overflow.snine.nl',
      'https://anonymousoverflow.privacyredirect.com',
      'https://soflow.nerdvpn.de',
      'https://overflow.einfachzocken.eu',
      'https://overflow.seasi.dev',
      'https://anonymousoverflow.catsarch.com',
      'https://overflow.darkness.services',
      'https://anonflow.aketawi.space',
      'https://overflow.canine.tools',
      'https://ao.bloat.cat',
    ],
    breezewiki: [
      'https://breezewiki.com',
      'https://antifandom.com',
      'https://breezewiki.pussthecat.org',
      'https://bw.projectsegfau.lt',
      'https://breeze.hostux.net',
      'https://bw.artemislena.eu',
      'https://breeze.nohost.network',
      'https://breeze.whateveritworks.org',
      'https://z.opnxng.com',
      'https://breezewiki.hyperreal.coffee',
      'https://breezewiki.catsarch.com',
      'https://breeze.mint.lgbt',
      'https://breezewiki.nadeko.net',
      'https://fandom.reallyaweso.me',
      'https://breezewiki.r4fo.com',
      'https://breezewiki.private.coffee',
      'https://fan.blitzw.in',
      'https://antifandom.com',
      'https://breezewiki.com',
      'https://breezewiki.nadeko.net',
      'https://breezewiki.pussthecat.org',
      'https://bw.projectsegfau.lt',
    ],
    ducksforducks: ['https://ducksforducks.private.coffee'],
    dumb: [
      'https://dm.vern.cc',
      'https://dumb.lunar.icu',
      'https://dumb.ducks.party',
      'https://dumb.hyperreal.coffee',
      'https://dumb.bloat.cat',
      'https://dumb.jeikobu.net',
      'https://dumb.canine.tools',
      'https://lyr.dc09.ru',
      'https://db.kuuro.net',
      'https://dumb.ducks.party',
      'https://dumb.lunar.icu',
    ],
    eddrit: ['https://eddrit.com'],
    imginn: [
      function imginn(url) {
        const { pathname } = url;
        url.href = 'https://imginn.com';
        url.pathname = pathname.replace('/reel/', '/p/');
      },
    ],
    intellectual: [
      'https://in.bloat.cat',
      'https://intellectual.catsarch.com',
      'https://intellectual.insprill.net',
    ],
    invidious: [
      'https://inv.nadeko.net',
      'https://invidious.nerdvpn.de',
      'https://invidious.f5.si',
      'https://yewtu.be',
      'https://invidious.snopyta.org',
    ],
    ledit: hashPath('https://ledit.lol'),
    libmedium: [
      'https://libmedium.batsense.net',
      'https://md.vern.cc',
      'https://medium.hostux.net',
      'https://libmedium.batsense.net',
    ],
    nerdsfornerds: ['https://nn.vern.cc'],
    neuters: ['https://neuters.de', 'https://nu.vern.cc'],
    nitter: [
      'https://xcancel.com',
      'https://nitter.privacyredirect.com',
      'https://lightbrd.com',
      'https://nitter.space',
      'https://nitter.tiekoetter.com',
      'https://nuku.trabun.org',
      'https://nitter.net',
    ],
    'photon-reddit': ['https://photon-reddit.com'],
    priviblur: [
      'https://pb.bloat.cat',
      'https://tb.opnxng.com',
      'https://priviblur.pussthecat.org',
      'https://priviblur.thebunny.zone',
      'https://priviblur.canine.tools',
      'https://pb.cleberg.net',
      'https://tumblr.nerdvpn.de',
    ],
    quetre: [
      'https://quetre.iket.me',
      'https://qr.vern.cc',
      'https://quetre.pussthecat.org',
      'https://ask.habedieeh.re',
      'https://quetre.blackdrgn.nl',
      'https://quetre.lunar.icu',
      'https://quetre.drgns.space',
      'https://quetre.r4fo.com',
      'https://quetre.ducks.party',
      'https://quetre.private.coffee',
      'https://quetre.canine.tools',
      'https://qt.bloat.cat',
      'https://quetre.jeikobu.net',
      'https://q.307200.xyz',
      'https://quora.nerdvpn.de',
      'https://quetre.privacyredirect.com',
      'https://quora.vern.cc',
      'https://quetre.pufe.org',
      'https://questions.whateveritworks.org',
      'https://quetre.odyssey346.dev',
      'https://quetre.pussthecat.org',
    ],
    reddiculous: hashPath(
      'https://ashish-um.github.io/reddiculous',
      'https://mescalito.github.io/Reddiculous',
    ),
    rdx: [
      function rdx(url) {
        const path = url.pathname;

        const user = path.replace(/^\/u(?:ser)?\/([^/]+)/, '$1');
        const subreddit = path.replace(/^\/r\/([^/]+)/, '$1');

        if (path.includes('/comments/')) {
          url.searchParams.set('url', url.href);
          url.pathname = '/comments.html';
        } else if (user !== path) {
          url.searchParams.set('u', user);
          url.pathname = '/user.html';
        } else if (subreddit !== path) {
          url.searchParams.set('r', subreddit);
          url.pathname = '/subreddit.html';
        }

        url.hostname = 'rdx.overdevs.com';
      },
    ],
    reditr: ['https://reditr.com/'],
    redlib: [
      'https://redlib.catsarch.com',
      'https://redlib.perennialte.ch',
      'https://redlib.privacyredirect.com',
      'https://redlib.private.coffee',
      'https://reddit.nerdvpn.de',
      'https://reddit.adminforge.de',
      'https://rl.blitzw.in',
      'https://redlib.orangenet.cc',
      'https://redlib.privadency.com',
      'https://l.opnxng.com',
      'https://red.artemislena.eu',
      'https://redlib.nadeko.net',
      'https://rl.bloat.cat',
      'https://safereddit.com',
      'https://redlib.freedit.eu',
    ],
    rf: hashPath('https://rf.alexkoen.com'),
    ruraldictionary: [
      'https://rd.vern.cc',
      'https://rd.bloat.cat',
      'https://rd.thirtysix.pw',
    ],
    scribe: [
      'https://scribe.rip',
      'https://scribe.nixnet.services',
      'https://scribe.citizen4.eu',
      'https://scribe.froth.zone',
      'https://scribe.rawbit.ninja',
      'https://sc.vern.cc',
      'https://scribe.r4fo.com',
      'https://scribe.privacyredirect.com',
      'https://scribe.privacyredirect.com',
      'https://scribe.rawbit.ninja',
      'https://scribe.rip',
    ],
    small: ['https://small.private.coffee'],
    skipvids: [
      function skipVids(url) {
        const { href } = url;
        url.href = 'https://skipvids.com';
        url.searchParams.set('search_query', href);
      },
    ],
  };

  const replacements = Object.entries({
    fandom: ['breezewiki'],
    geeksforgeeks: ['ducksforducks', 'nerdsfornerds'],
    genius: ['dumb', 'intellectual'],
    instagram: ['imginn'],
    medium: ['libmedium', 'scribe', 'small'],
    quora: ['quetre'],
    reddit: [
      'eddrit',
      'ledit',
      'photon-reddit',
      'rdx',
      'reddiculous',
      'reditr',
      'redlib',
      'rf',
    ],
    reuters: ['neuters'],
    stackoverflow: ['anonymousoverflow'],
    tumblr: ['priviblur'],
    twitter: ['nitter'],
    urbandictionary: ['ruraldictionary'],
    'x.com': ['nitter'],
    youtube: ['invidious', 'skipvids'],
  });

  const redirect = new URL(location);

  const replacement = replacements.find(([host]) =>
    redirect.hostname.includes(host),
  );

  if (replacement) {
    const isFunction = (input) => typeof input === 'function';

    const chooseRandom = (list) =>
      list.at(Math.floor(Math.random() * list.length));

    const [, options] = replacement;
    const type = chooseRandom(options);
    const instancesForType = instances[type];

    if (instancesForType?.length > 0) {
      const instance = chooseRandom(instancesForType);

      if (isFunction(instance)) {
        instance(redirect);
      } else {
        redirect.href = instance;
        redirect.pathname = location.pathname;
      }

      return redirect;
    }
  }

  redirect.href = 'https://farside.link';
  redirect.pathname = `/_/${location}`;

  return redirect;
}

function main() {
  const redirect = getRedirect();
  location.replace(redirect);
}

main();