chess.com autosettings userscript

yes-i-know-i-could-just-make-an-account-instead.js

// ==UserScript==
// @name             chess.com autosettings
// @match            https://*.chess.com/play/*
// @version          1.0
// ==/UserScript==

const $ = slt => document.querySelector(slt);
const sleep = ms => new Promise(rsv => setTimeout(rsv, ms));

const select = (val, slt) => {
  const el = (slt ? s => $(slt).querySelector(s) : $)('[value="' + val + '"]').parentElement;
  el.value = val;
  el.dispatchEvent(new Event('change'));
};

(async () => {
  await sleep(1000);

  // Dismiss guest popup
  const gb = $('#guest-button');
  gb && gb.click();

  // Open Settings
  $('#board-controls-settings').click();
  await sleep(1000);

  // Try statement because settings are not yet stored in localStorage the first time this script is used
  try {
    // Set Pieces from localStorage
    select(localStorage.getItem('@userscript@__pref_pieces'), '[data-cy=piece-set-selector]');

    // Set Board from localStorage
    select(localStorage.getItem('@userscript@__pref_board'), '[data-cy=board-style-selector]');
  } catch {}

  // Set Animation Type to Arcade
  select('arcade');

  // Go to the Play tab
  $('[data-tab=play]').click();
  await sleep(10);

  // Disable Confirm Resign
  $('#confirmResign').checked && $('#confirmResign').click();

  // Go to the Live sub-tab
  $('[data-tab=playSettingsLive]').click();
  await sleep(10);

  // Enable Premoves & Low Time Warning
  $('#premoves').checked || $('#premoves').click();
  $('#lowTimeWarning').checked || $('#lowTimeWarning').click();

  // Go back to the Board tab
  $('[data-tab=board]').click();

  // Make save button also save modified settings to localStorage
  $('[data-cy=save]').addEventListener('click', () => {
    localStorage.setItem('@userscript@__pref_pieces', $('[data-cy=piece-set-selector]').value);
    localStorage.setItem('@userscript@__pref_board', $('[data-cy=board-style-selector]').value);
  });
})();