xd2shuffle

Visual larp: Changes ARS to $ but keeps the number exactly the same
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// ==UserScript==
// @name         xd2shuffle
// @namespace    http://tampermonkey.net/
// @version      7.7.8.0
// @description  Visual larp: Changes ARS to $ but keeps the number exactly the same
// @author       fusi | @loficat on tg | codedfusi on github
// @match        *://*.shuffle.com/*
// @grant        none
// @run-at       document-start
// @license      MIT
// ==/UserScript==

(function () {
    const processedTextNodes = new WeakSet();
    const processedImages = new WeakSet();

    function processTextNode(node) {
        if (node.nodeType === 3 && node.nodeValue && !processedTextNodes.has(node)) {
            let newValue = node.nodeValue;
            let modified = false;

            // ONLY replace "ARS" with "$" - leave numbers completely alone
            if (newValue.includes("ARS")) {
                newValue = newValue.replace(/ARS/g, "$");
                modified = true;
            }

            // Remove any space that appears between the new "$" and the number
            if (modified) {
                newValue = newValue.replace(/\$\s+/g, '$');
            }

            if (modified) {
                node.nodeValue = newValue;
                processedTextNodes.add(node);
            }
        }
    }

    function processImageElement(el) {
        if (el.nodeType === 1 && el.hasAttribute("src") && !processedImages.has(el)) {
            const src = el.getAttribute("src");
            if (src && src.includes("/icons/fiat/ARS.svg")) {
                el.setAttribute("src", src.replace("/icons/fiat/ARS.svg", "/icons/fiat/USD.svg"));
                processedImages.add(el);
            }
        }
    }

    function walkAndProcess(root) {
        if (!root) return;

        const walker = document.createTreeWalker(root, NodeFilter.SHOW_TEXT, null, false);
        let node;
        while ((node = walker.nextNode())) {
            processTextNode(node);
        }

        const images = root.querySelectorAll('img[src*="/icons/fiat/ARS.svg"]');
        images.forEach(img => processImageElement(img));
    }

    function onMutation(mutations) {
        for (const mutation of mutations) {
            if (mutation.type === 'childList') {
                for (const addedNode of mutation.addedNodes) {
                    if (addedNode.nodeType === 1) {
                        walkAndProcess(addedNode);
                    } else if (addedNode.nodeType === 3) {
                        processTextNode(addedNode);
                    }
                }
            }
        }
    }

    document.addEventListener("DOMContentLoaded", () => {
        walkAndProcess(document.body);

        const observer = new MutationObserver(onMutation);
        observer.observe(document.body, {
            childList: true,
            subtree: true
        });
    });
})();