`; currentTab = 2; updateTabView(); } function updateTabView() { Object.values(tabButtons).forEach(b => b.classList.remove('active')); Object.values(tabContents).forEach(c => c.classList.remove('active')); tabButtons[currentTab].classList.add('active'); tabContents[currentTab].classList.add('active'); prevBtn.style.visibility = currentTab === 1 ? 'hidden' : 'visible'; nextBtn.textContent = currentTab === 1 ? 'Generate Plan' : 'Next'; nextBtn.style.visibility = currentTab === 2 ? 'hidden' : 'visible'; } function goToTab(tabNumber) { if (tabNumber > currentTab && currentTab === 1) { generatePlan(); } else { currentTab = tabNumber; updateTabView(); } } function downloadPdf() { if (!currentPlan) { showCustomMessage('No Data', 'Please generate a plan first.', 'warning'); return; } const { jsPDF } = window.jspdf; const doc = new jsPDF(); doc.setFontSize(22); doc.setFont('helvetica', 'bold'); doc.text("Your Family Vacation Plan", 105, 20, { align: 'center' }); doc.setFontSize(11); doc.setFont('helvetica', 'normal'); doc.text(currentPlan.summary, 105, 28, { align: 'center' }); let yPos = 40; const addSection = (title, content) => { if (yPos > 260) { doc.addPage(); yPos = 20; } doc.setFontSize(14); doc.setFont('helvetica', 'bold'); doc.text(title, 14, yPos); yPos += 7; doc.setFontSize(10); doc.setFont('helvetica', 'normal'); const lines = doc.splitTextToSize(content, 180); doc.text(lines, 14, yPos); yPos += (lines.length * 5) + 8; }; addSection("Suggested Destinations", currentPlan.destinations); addSection("Accommodation Ideas", currentPlan.accommodation); addSection("Sample Itinerary", currentPlan.pdfItinerary.replace(/Day (\d+)/g, '\nDay $1:\n').replace(/Morning:/g,'- Morning:').replace(/Afternoon:/g,'- Afternoon:')); doc.save('Family_Vacation_Plan.pdf'); } function showCustomMessage(title, body, type) { const box = document.getElementById('message-box'), titleEl = document.getElementById('message-title'), bodyEl = document.getElementById('message-body'), iconContainer = document.getElementById('message-icon-container'); if(!box || !titleEl || !bodyEl || !iconContainer) return; titleEl.textContent = title; bodyEl.textContent = body; let iconSvg = ''; switch (type) { case 'success': iconSvg = ``; break; case 'error': iconSvg = ``; break; case 'warning': iconSvg = ``; break; } iconContainer.innerHTML = iconSvg; box.classList.add('show'); setTimeout(() => { box.classList.remove('show'); }, 4000); } prevBtn.addEventListener('click', () => goToTab(1)); nextBtn.addEventListener('click', () => goToTab(2)); pdfDownloadBtn.addEventListener('click', downloadPdf); populateInterests(); updateTabView(); });