patch_prepare.diff

<<<<<<< SEARCH
async function loadPDFDatabase() {
=======
function prepareSearchIndex(data) {
    const dateFormatter = new Intl.DateTimeFormat('en-US', {
        year: 'numeric', month: 'short', day: 'numeric'
    });
    const now = new Date().getTime();
    const SEVEN_DAYS = 7 * 24 * 60 * 60 * 1000;

    for (let i = 0; i < data.length; i++) {
        const pdf = data[i];

        // 1. Precalculate search string
        pdf._searchStr = (
            (pdf.title || '') + ' ' +
            (pdf.description || '') + ' ' +
            (pdf.category || '') + ' ' +
            (pdf.author || '')
        ).toLowerCase();

        // 2. Precalculate date logic
        const uploadDateObj = new Date(pdf.uploadDate);
        if (!isNaN(uploadDateObj)) {
            pdf._formattedDate = dateFormatter.format(uploadDateObj);
            pdf._isNew = (now - uploadDateObj.getTime()) < SEVEN_DAYS;
        } else {
            pdf._formattedDate = 'Unknown Date';
            pdf._isNew = false;
        }
    }
}

async function loadPDFDatabase() {
>>>>>>> REPLACE