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JustAnOkapi / Etsy Price Rounder

// ==UserScript==
// @name         Etsy Price Rounder
// @version      1.99
// @description  Rounds prices to the nearest $0.25
// @author       JustAnOkapi
// @match        https://www.etsy.com/*
// @grant        none
// @license      MIT
// @namespace    https://greasyfork.org/users/1198856
// ==/UserScript==

(function () {
  'use strict';

  // Function to round all prices
  function roundPrices() {
    // Round prices in class
    const priceElements = document.querySelectorAll('.currency-value');
    for (const priceElement of priceElements) {
      const priceValue = parseFloat(priceElement.textContent);
      if (!isNaN(priceValue)) {
        const roundedPrice = Math.round(priceValue * 4) / 4;
        priceElement.textContent = roundedPrice.toFixed(2);
      }
    }
    // Round prices in text nodes
    const textNodes = document.createTreeWalker(
      document.body,
      NodeFilter.SHOW_TEXT,
      null,
      false
    );

    while (textNodes.nextNode()) {
      const node = textNodes.currentNode;
      const text = node.textContent;

      // Use a regular expression to match prices in different formats
      const roundedText = text.replace(/\$(\d+\.\d{2})/g, (match, price) => {
        const roundedPrice = Math.round(parseFloat(price) * 4) / 4;
        return '$' + roundedPrice.toFixed(2);
      });

      if (roundedText !== text) {
        node.textContent = roundedText;
      }
    }
  }

  // Always up to date
  const observer = new MutationObserver(roundPrices);
  observer.observe(document.body, {
    childList: true,
    subtree: true
  });
})();