`; resultsCardsContainer.appendChild(card); } // Chart const chartCtx = document.getElementById('total-cost-chart').getContext('2d'); if(totalCostChartInstance) totalCostChartInstance.destroy(); totalCostChartInstance = new Chart(chartCtx, { type: 'bar', data: { labels: Object.keys(results), datasets: [{ label: 'Total Cost Over Term', data: Object.values(results).map(r => r.totalCost), backgroundColor: ['#3b82f6', '#6366f1', '#8b5cf6', '#ec4899'], borderWidth: 1 }] }, options: { responsive: true, maintainAspectRatio: true, plugins: { legend: { display: false } }, scales: { y: { beginAtZero: true } } } }); }; const downloadPdf = () => { const r = calculationResults; const i = getInputs(); const { jsPDF } = window.jspdf; const doc = new jsPDF({ orientation: 'portrait', unit: 'pt', format: 'a4' }); const margin = 50; let y = margin; const addText = (text, options) => { const fontSize = options.fontSize || 10; doc.setFont(options.font || 'helvetica', options.fontStyle || 'normal'); doc.setFontSize(fontSize); if (options.color) doc.setTextColor(options.color[0], options.color[1], options.color[2]); doc.text(text, options.x || margin, y); if(options.yAdd) y += options.yAdd; }; addText('First-Time Homebuyer Mortgage Comparison', { fontSize: 18, fontStyle: 'bold', yAdd: 20 }); addText(`Based on a Home Price of ${formatCurrency(i['home-price'])} with a ${i['down-payment']}% Down Payment`, { fontSize: 10, fontStyle: 'italic', yAdd: 30 }); for (const loanName in r) { const data = r[loanName]; addText(loanName, { fontSize: 14, fontStyle: 'bold', color: [13, 148, 136], yAdd: 20 }); addText(`Estimated Monthly Payment:`, { yAdd: 15 }); addText(formatCurrency(data.totalMonthlyPayment), { x: 250, fontStyle: 'bold' }); addText(`Estimated Cash to Close:`, { yAdd: 15 }); addText(formatCurrency(data.cashToClose), { x: 250 }); addText(`Total Cost Over Term:`, { yAdd: 15 }); addText(formatCurrency(data.totalCost), { x: 250 }); y += 15; if (y > 750) { doc.addPage(); y = margin; } } doc.save('Mortgage-Comparison.pdf'); }; // Event Listeners calculateBtn.addEventListener('click', performCalculations); pdfDownloadBtn.addEventListener('click', downloadPdf); });