function replaceTextInDocument(searchText, replacementText) { const treeWalker = document.createTreeWalker( document.body, NodeFilter.SHOW_TEXT, null, false );

const textNodes = [];
let currentNode = treeWalker.nextNode();

while (currentNode) {
    textNodes.push(currentNode);
    currentNode = treeWalker.nextNode();
}

textNodes.forEach(node => {
    if (node.nodeValue.includes(searchText)) {
        node.nodeValue = node.nodeValue.replace(new RegExp(escapeRegExp(searchText), 'g'), replacementText);
    }
});

}

function escapeRegExp(string) { return string.replace(/[.*+?^${}()|[]\]/g, '\$&'); }

function performReplacements() { const urlMeta = document.querySelector('meta[property="og:url"]'); const descriptionMeta = document.querySelector('meta[property="og:description"]');

if (urlMeta) {
    const urlContent = urlMeta.getAttribute('content');
    const urlParts = urlContent.split('/');
    const threadTitle = urlParts[urlParts.length - 1];
    const formattedTitle = threadTitle
        .replace(/-/g, ' ')
        .replace(/\b\w/g, char => char.toUpperCase());
    
    replaceTextInDocument('(Under Review)', formattedTitle);
}

if (descriptionMeta) {
    const descriptionContent = descriptionMeta.getAttribute('content');
    replaceTextInDocument('This post is under review', descriptionContent);
}

}

if (document.readyState === 'loading') { document.addEventListener('DOMContentLoaded', performReplacements); } else { performReplacements(); }