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⚡ Bolt: Optimize search filtering performance #8

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⚡ Bolt: Optimize search filtering performance #8

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29 changes: 25 additions & 4 deletions script.js
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Original file line number Diff line number Diff line change
Expand Up @@ -451,6 +451,7 @@ async function loadPDFDatabase() {

if (shouldUseCache) {
pdfDatabase = cachedData;
prepareSearchIndex();
// --- FIX: CALL THIS TO POPULATE UI ---
syncClassSwitcher();
renderSemesterTabs();
Expand All @@ -474,6 +475,8 @@ async function loadPDFDatabase() {
data: pdfDatabase
}));

prepareSearchIndex();

// --- FIX: CALL THIS TO POPULATE UI ---
syncClassSwitcher();
renderPDFs();
Expand All @@ -485,6 +488,26 @@ async function loadPDFDatabase() {
}
}

function prepareSearchIndex() {
pdfDatabase.forEach(pdf => {
// Create a combined search string (optimization)
// We join fields with spaces so "title" + "author" don't merge
const searchStr = [
pdf.title,
pdf.description,
pdf.category,
pdf.author
].map(s => (s || "").toLowerCase()).join(" ");

// Add as non-enumerable property so it doesn't get saved to localStorage
Object.defineProperty(pdf, '_searchStr', {
value: searchStr,
enumerable: false,
writable: true
});
});
}

function hidePreloader() {
if (preloader) {
preloader.classList.add('hidden');
Expand Down Expand Up @@ -915,10 +938,8 @@ 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);
// Use pre-computed search string (Optimization)
const matchesSearch = (pdf._searchStr || "").includes(searchTerm);

// Update return statement to include matchesClass
return matchesSemester && matchesClass && matchesCategory && matchesSearch;
Expand Down