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⚡ Bolt: Search Indexing & Date Memoization #47

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⚡ Bolt: Search Indexing & Date Memoization #47

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35 changes: 23 additions & 12 deletions script.js
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Original file line number Diff line number Diff line change
Expand Up @@ -416,6 +416,23 @@ async function syncClassSwitcher() {
renderSemesterTabs();
}

function prepareSearchIndex(pdfs) {
const now = new Date();
pdfs.forEach(pdf => {
// Pre-calculate lowercased search string to avoid per-render overhead
pdf._searchStr = `${pdf.title || ''} ${pdf.description || ''} ${pdf.category || ''} ${pdf.author || ''}`.toLowerCase();

// Handle Firestore Timestamps or ISO strings for caching
const uploadDateObj = pdf.uploadDate?.toDate ? pdf.uploadDate.toDate() : new Date(pdf.uploadDate);
pdf._formattedDate = uploadDateObj.toLocaleDateString('en-US', {
year: 'numeric', month: 'short', day: 'numeric'
});

const timeDiff = now - uploadDateObj;
pdf._isNew = timeDiff < (7 * 24 * 60 * 60 * 1000); // 7 days
});
}

async function loadPDFDatabase() {
if (isMaintenanceActive) return;

Expand Down Expand Up @@ -453,6 +470,7 @@ async function loadPDFDatabase() {
}

if (shouldUseCache) {
prepareSearchIndex(cachedData);
pdfDatabase = cachedData;
// --- FIX: CALL THIS TO POPULATE UI ---
syncClassSwitcher();
Expand All @@ -477,6 +495,8 @@ async function loadPDFDatabase() {
data: pdfDatabase
}));

prepareSearchIndex(pdfDatabase);

// --- FIX: CALL THIS TO POPULATE UI ---
syncClassSwitcher();
renderPDFs();
Expand Down Expand Up @@ -918,10 +938,7 @@ function renderPDFs() {
matchesCategory = currentCategory === 'all' || pdf.category === currentCategory;
}

const matchesSearch = pdf.title.toLowerCase().includes(searchTerm) ||
pdf.description.toLowerCase().includes(searchTerm) ||
pdf.category.toLowerCase().includes(searchTerm) ||
pdf.author.toLowerCase().includes(searchTerm);
const matchesSearch = pdf._searchStr ? pdf._searchStr.includes(searchTerm) : false;

// Update return statement to include matchesClass
return matchesSemester && matchesClass && matchesCategory && matchesSearch;
Expand Down Expand Up @@ -994,11 +1011,7 @@ function createPDFCard(pdf, favoritesList, index = 0, highlightRegex = null) {
const heartIconClass = isFav ? 'fas' : 'far';
const btnActiveClass = isFav ? 'active' : '';

const uploadDateObj = new Date(pdf.uploadDate);
const timeDiff = new Date() - uploadDateObj;
const isNew = timeDiff < (7 * 24 * 60 * 60 * 1000); // 7 days

const newBadgeHTML = isNew
const newBadgeHTML = pdf._isNew
? `<span style="background:var(--error-color); color:white; font-size:0.6rem; padding:2px 6px; border-radius:4px; margin-left:8px; vertical-align:middle;">NEW</span>`
: '';

Expand All @@ -1011,9 +1024,7 @@ function createPDFCard(pdf, favoritesList, index = 0, highlightRegex = null) {
const categoryIcon = categoryIcons[pdf.category] || 'fa-file-pdf';

// Formatting Date
const formattedDate = new Date(pdf.uploadDate).toLocaleDateString('en-US', {
year: 'numeric', month: 'short', day: 'numeric'
});
const formattedDate = pdf._formattedDate;

// Uses global escapeHtml() now

Expand Down