Audible filter real items (-=4.0 & -=500)-2.2.user.js

// ==UserScript==
// @name         Audible filter (>=4.0, >=500, skip "Not rated yet")
// @namespace    https://audible.com/
// @version      2.4
// @description  Hide entire Audible book rows failing thresholds
// @match        https://www.audible.com/*
// @run-at       document-end
// @grant        none
// ==/UserScript==
(function () {
  "use strict";

  const MIN_RATING = 4.0;
  const MIN_REVIEWS = 500;

  const BOOK_SELECTOR = 'li.productListItem[id^="product-list-item-"], li.bc-list-item.productListItem';

  function getBook(el) {
    return el.closest(BOOK_SELECTOR);
  }

  function parseRating(text) {
    const m = text.match(/(\d(?:\.\d)?)\s*out of 5 stars/i);
    return m ? parseFloat(m[1]) : null;
  }

  function parseReviews(text) {
    const m = text.match(/([\d,]+)\s+ratings?/i);
    return m ? parseInt(m[1].replace(/,/g, ""), 10) : null;
  }

  function shouldHide(rating, reviews, rawText) {
    if (/not rated yet/i.test(rawText)) return true;
    if (rating !== null && rating < MIN_RATING) return true;
    if (reviews !== null && reviews < MIN_REVIEWS) return true;
    return false;
  }

  function filterBooks(root) {
    const rows = root.querySelectorAll(BOOK_SELECTOR);
    rows.forEach((row) => {
      const text = row.innerText;
      const rating = parseRating(text);
      const reviews = parseReviews(text);
      if (shouldHide(rating, reviews, text)) {
        row.style.display = "none";
      }
    });
  }

  function badge() {
    if (document.getElementById("audible-filter-badge")) return;
    const b = document.createElement("div");
    b.id = "audible-filter-badge";
    b.textContent = "Audible filter ≥4.0★, ≥500 ratings, no 'Not rated yet'";
    Object.assign(b.style, {
      position: "fixed",
      top: "6px",
      right: "6px",
      background: "#000",
      color: "#fff",
      padding: "4px 6px",
      fontSize: "11px",
      zIndex: 999999,
    });
    document.body.appendChild(b);
  }

  badge();
  filterBooks(document);

  const obs = new MutationObserver((m) =>
    m.forEach((x) =>
      x.addedNodes.forEach((n) => n.nodeType === 1 && filterBooks(n))
    )
  );
  obs.observe(document.body, { childList: true, subtree: true });
})();