// ==UserScript==
// @name        4chan vtuber fan mark adder
// @match       https://boards.4channel.org/*
// ==/UserScript==
(function() {

    const replacements = [
        { regex: /\bpomu\b/ig, value: '🧚🍂$&' },
        { regex: /\b(ewiwa|elira)\b/ig, value: '🌤️$&' },
        { regex: /\b(finana|feesh)\b/ig, value: '🐠$&' },
    ];


    function handleChildNodes(e) {
        for (const n of e.childNodes) {
            if (n.nodeType === 3) {
                for (const r of replacements) {
                    n.nodeValue = n.nodeValue.replace(r.regex, r.value);
                }
            } else if (n.nodeType === 1) {
                handleChildNodes(n)
            }
        }
    }

    function addEmoji() {
        for (const e of document.querySelectorAll(".postMessage")) {
            if (e.modded != true) {
                e.modded = true;
                handleChildNodes(e);
            }
        }
    }

    // identify an element to observe
    const target = document.querySelector(".thread");

    // create a new instance of `MutationObserver` named `observer`,
    // passing it a callback function
    const observer = new MutationObserver(() => {
        addEmoji();
    });

    observer.observe(target, {
        subtree: true,
        childList: true
    });

    addEmoji();

})();