diff --git a/.jules/bolt.md b/.jules/bolt.md new file mode 100644 index 0000000..d169851 --- /dev/null +++ b/.jules/bolt.md @@ -0,0 +1,4 @@ + +## 2024-03-08 - PDF Search & Rendering Performance +**Learning:** The `renderPDFs` filter loop was running `toLowerCase()` on multiple fields for every PDF, every keystroke, and constructing new `Date` objects in `createPDFCard` during DOM generation. This caused significant lag during searching and initial rendering, especially as the database grows. +**Action:** Implement a `prepareSearchIndex` pass immediately after `loadPDFDatabase` to pre-calculate `_searchStr` and `_formattedDate` once. 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a/package.json b/package.json new file mode 100644 index 0000000..878d4ad --- /dev/null +++ b/package.json @@ -0,0 +1,5 @@ +{ + "dependencies": { + "jsdom": "^28.1.0" + } +} diff --git a/script.js b/script.js index bdc06f3..f8bc4ba 100644 --- a/script.js +++ b/script.js @@ -382,6 +382,35 @@ window.changeSemester = function (sem) { renderPDFs(); }; +function prepareSearchIndex(pdfs) { + const now = new Date(); + const sevenDaysMs = 7 * 24 * 60 * 60 * 1000; + + pdfs.forEach(pdf => { + // Handle Firestore Timestamps and strings + let uploadDateObj; + if (pdf.uploadDate && typeof pdf.uploadDate.toDate === 'function') { + uploadDateObj = pdf.uploadDate.toDate(); + } else { + uploadDateObj = new Date(pdf.uploadDate); + } + + const title = (pdf.title || '').toLowerCase(); + const desc = (pdf.description || '').toLowerCase(); + const cat = (pdf.category || '').toLowerCase(); + const author = (pdf.author || '').toLowerCase(); + + pdf._searchStr = `${title} ${desc} ${cat} ${author}`; + + pdf._formattedDate = uploadDateObj.toLocaleDateString('en-US', { + year: 'numeric', month: 'short', day: 'numeric' + }); + + const timeDiff = now - uploadDateObj; + pdf._isNew = timeDiff < sevenDaysMs; + }); +} + async function syncClassSwitcher() { const classSelect = document.getElementById('classSelect'); if (!classSelect) return; @@ -451,6 +480,7 @@ async function loadPDFDatabase() { if (shouldUseCache) { pdfDatabase = cachedData; + prepareSearchIndex(pdfDatabase); // --- FIX: CALL THIS TO POPULATE UI --- syncClassSwitcher(); renderSemesterTabs(); @@ -474,6 +504,8 @@ async function loadPDFDatabase() { data: pdfDatabase })); + prepareSearchIndex(pdfDatabase); + // --- FIX: CALL THIS TO POPULATE UI --- syncClassSwitcher(); renderPDFs(); @@ -902,11 +934,9 @@ function renderPDFs() { // Locate renderPDFs() in script.js and update the filter section const filteredPdfs = pdfDatabase.filter(pdf => { - const matchesSemester = pdf.semester === currentSemester; - - // NEW: Check if the PDF class matches the UI's current class selection - // Note: If old documents don't have this field, they will be hidden. - const matchesClass = pdf.class === currentClass; + // Early return for cheap class and semester checks + if (pdf.class !== currentClass) return false; + if (pdf.semester !== currentSemester) return false; let matchesCategory = false; if (currentCategory === 'favorites') { @@ -915,13 +945,13 @@ 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); + if (!matchesCategory) return false; + + // Use pre-calculated search string + const matchesSearch = searchTerm ? pdf._searchStr.includes(searchTerm) : true; // Update return statement to include matchesClass - return matchesSemester && matchesClass && matchesCategory && matchesSearch; + return matchesSearch; }); updatePDFCount(filteredPdfs.length); @@ -991,11 +1021,7 @@ 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 ? `NEW` : ''; @@ -1007,10 +1033,7 @@ 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 || new Date().toLocaleDateString('en-US'); // Fallback just in case // Uses global escapeHtml() now diff --git a/test_playwright.py b/test_playwright.py new file mode 100644 index 0000000..5d3eedc --- /dev/null +++ b/test_playwright.py @@ -0,0 +1,102 @@ +from playwright.sync_api import sync_playwright + +def test_frontend(): + with sync_playwright() as p: + browser = p.chromium.launch(headless=True) + context = browser.new_context() + page = context.new_page() + + page.goto("http://localhost:8000") + + # Override firebase to prevent issues + page.evaluate(""" + window.firebase = { + apps: [1], + firestore: () => ({ + collection: () => ({ + doc: () => ({ onSnapshot: () => {} }), + orderBy: () => ({ + limit: () => ({ + get: () => Promise.resolve({ empty: true }) + }) + }) + }) + }), + auth: () => ({ onAuthStateChanged: () => {} }) + } + """) + + page.evaluate(""" + localStorage.setItem('classnotes_db_cache', JSON.stringify({ + timestamp: 9999999999999, + data: [ + { + id: 'pdf1', + title: 'Organic Chemistry Basics', + description: 'Introductory concepts', + category: 'Organic', + author: 'Dr. Smith', + class: 'MSc Chemistry', + semester: 1, + uploadDate: '2024-03-01T00:00:00.000Z', + pdfUrl: 'https://example.com/pdf1' + }, + { + id: 'pdf2', + title: 'Quantum Mechanics', + description: 'Advanced physics', + category: 'Physics', + author: 'Dr. Heisenberg', + class: 'MSc Physics', + semester: 2, + uploadDate: '2023-01-01T00:00:00.000Z', + pdfUrl: 'https://example.com/pdf2' + } + ] + })); + localStorage.setItem('currentClass', 'MSc Chemistry'); + localStorage.setItem('currentSemester', '1'); + """) + + # Manually load the script execution to prevent timing issues + page.evaluate(""" + window.isMaintenanceActive = false; + document.getElementById('holidayOverlay')?.classList.add('hidden'); + loadPDFDatabase(); + """) + page.wait_for_timeout(2000) + + # Force render + page.evaluate("renderPDFs()") + page.wait_for_timeout(1000) + + # Check if organic chemistry card rendered + try: + card_text = page.locator(".pdf-card").first.inner_text() + print("Card text:", card_text) + assert "Organic Chemistry Basics" in card_text, "Organic chemistry card should be rendered" + + # Test Search + search_input = page.locator("#searchInput") + search_input.fill("quantum") + page.evaluate("renderPDFs()") # force render without timeout + page.wait_for_timeout(1000) + + empty_state = page.locator("#emptyState").is_visible() + print("Empty state visible:", empty_state) + assert empty_state, "Should show empty state for quantum in MSc Chemistry" + + search_input.fill("organic") + page.evaluate("renderPDFs()") # force render + page.wait_for_timeout(1000) + assert page.locator(".pdf-card").is_visible(), "Should show organic card when searching 'organic'" + + print("All tests passed!") + except Exception as e: + print("Failed:", e) + print(page.evaluate("document.body.innerHTML")) + + browser.close() + +if __name__ == "__main__": + test_frontend() diff --git a/verification.png b/verification.png index 77025f3..00d1aa2 100644 Binary files a/verification.png and b/verification.png differ diff --git a/verification_empty.png b/verification_empty.png new file mode 100644 index 0000000..1f6ead2 Binary files /dev/null and b/verification_empty.png differ diff --git a/verify.py b/verify.py new file mode 100644 index 0000000..9286e7a --- /dev/null +++ b/verify.py @@ -0,0 +1,98 @@ +from playwright.sync_api import sync_playwright +import json +import time + +def verify_frontend(): + with sync_playwright() as p: + browser = p.chromium.launch(headless=True) + context = browser.new_context() + page = context.new_page() + + # Block external requests + page.route("**/*", lambda route: route.continue_() if not any(x in route.request.url for x in ["firestore", "google", "firebase", "unpkg"]) else route.abort()) + + # Load page + page.goto("http://localhost:8000") + + mock_data = { + "timestamp": 9999999999999, + "data": [ + { + "id": "pdf1", + "title": "Organic Chemistry Basics", + "description": "Introductory concepts", + "category": "Organic", + "author": "Dr. Smith", + "class": "MSc Chemistry", + "semester": 1, + "uploadDate": "2024-03-01T00:00:00.000Z", + "pdfUrl": "https://example.com/pdf1" + }, + { + "id": "pdf2", + "title": "Quantum Mechanics", + "description": "Advanced physics", + "category": "Physics", + "author": "Dr. Heisenberg", + "class": "MSc Physics", + "semester": 2, + "uploadDate": "2023-01-01T00:00:00.000Z", + "pdfUrl": "https://example.com/pdf2" + } + ] + } + + # Set mocked local storage + page.evaluate(f"localStorage.setItem('classnotes_db_cache', '{json.dumps(mock_data)}')") + page.evaluate("localStorage.setItem('currentClass', 'MSc Chemistry')") + page.evaluate("localStorage.setItem('currentSemester', '1')") + + # Override firebase and maintenance checks + page.evaluate(""" + window.isMaintenanceActive = false; + window.initMaintenanceListener = function() {}; + window.firebase = { + apps: [1], + firestore: () => ({ + collection: () => ({ + doc: () => ({ onSnapshot: () => {} }), + orderBy: () => ({ + limit: () => ({ + get: () => Promise.resolve({ empty: true }) + }) + }) + }) + }), + auth: () => ({ onAuthStateChanged: () => {} }) + } + """) + + # Trigger data load and wait for DOM updates + page.evaluate("loadPDFDatabase()") + page.wait_for_timeout(2000) + + # Hide holiday mode and preloader just in case + page.evaluate("document.getElementById('holidayOverlay')?.classList.add('hidden')") + page.evaluate("document.getElementById('preloader')?.classList.add('hidden')") + + # Force render + page.evaluate("renderPDFs()") + page.wait_for_timeout(1000) + + # Take screenshot of the initial loaded state + page.screenshot(path="verification.png", full_page=True) + print("Screenshot taken: verification.png") + + # Search for quantum + page.locator("#searchInput").fill("quantum") + page.evaluate("renderPDFs()") + page.wait_for_timeout(1000) + + # Take screenshot of empty state + page.screenshot(path="verification_empty.png", full_page=True) + print("Screenshot taken: verification_empty.png") + + browser.close() + +if __name__ == "__main__": + verify_frontend()