`).join(''); }; const updateEmptyState = () => { const hasQuestions = generatedQuestions.length > 0; document.getElementById('report-content-area').style.display = hasQuestions ? 'block' : 'none'; document.getElementById('report-empty-state').style.display = hasQuestions ? 'none' : 'block'; downloadPdfBtn.style.display = hasQuestions ? 'flex' : 'none'; }; // --- PDF Generation --- const generatePdf = () => { const { jsPDF } = window.jspdf; if (!jsPDF || generatedQuestions.length === 0) return; const doc = new jsPDF(); doc.setFont('helvetica', 'bold'); doc.setFontSize(20); doc.text(`"People Also Ask" Questions for: ${currentTopic}`, 15, 20); const tableData = generatedQuestions.map(q => [q]); doc.autoTable({ startY: 30, head: [['Generated Questions']], body: tableData, theme: 'grid', headStyles: { fillColor: '#4b5563', textColor: '#ffffff' } }); doc.save(`PAA-Questions-${currentTopic.replace(/\s+/g, '-')}.pdf`); }; downloadPdfBtn.addEventListener('click', generatePdf); // --- Initialization --- updateEmptyState(); switchTab('question-generator'); });