`; // Performance Chart const perfCtx = document.getElementById('performance-chart').getContext('2d'); if (charts.performance) charts.performance.destroy(); charts.performance = new Chart(perfCtx, { type: 'line', data: { labels: ['T-6', 'T-5', 'T-4', 'T-3', 'T-2', 'T-1', 'Now'], datasets: [ { label: 'Portfolio', data: analysisResults.portfolioHistory, borderColor: '#4f46e5', tension: 0.1 }, { label: 'S&P 500 (SPY)', data: analysisResults.spyHistory, borderColor: '#64748b', tension: 0.1, borderDash: [5, 5] }, ] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { ticks: { callback: v => `$${(v/1000000).toFixed(1)}M` } } } } }); // Allocation Chart const allocCtx = document.getElementById('allocation-chart').getContext('2d'); if (charts.allocation) charts.allocation.destroy(); charts.allocation = new Chart(allocCtx, { type: 'doughnut', data: { labels: Object.keys(analysisResults.allocation), datasets: [{ data: Object.values(analysisResults.allocation), backgroundColor: CHART_COLORS }] }, options: { responsive: true, maintainAspectRatio: false } }); } function renderPortfolio() { const tableContainer = document.getElementById('holdings-table-container'); const rows = Object.entries(portfolio.holdings).map(([ticker, shares]) => { const data = MOCK_MARKET_DATA[ticker]; const value = shares * data.price; return `${ticker}${shares.toLocaleString()}$${value.toLocaleString()}${((value / analysisResults.holdingsValue) * 100).toFixed(1)}%`; }).join(''); tableContainer.innerHTML = `${rows}

Ticker	Shares	Value	% of Holdings

`; document.getElementById('trade-ticker').innerHTML = Object.keys(MOCK_MARKET_DATA).filter(t => t !== 'SPY').map(t => `${t}`).join(''); } function executeTrade() { const ticker = document.getElementById('trade-ticker').value; const type = document.getElementById('trade-type').value; const shares = parseInt(document.getElementById('trade-shares').value); if(!ticker || !type || !shares || shares <= 0) { alert('Please enter a valid trade.'); return; } const price = MOCK_MARKET_DATA[ticker].price; const cost = shares * price; if (type === 'buy') { if (portfolio.cash < cost) { alert('Insufficient cash.'); return; } portfolio.cash -= cost; portfolio.holdings[ticker] = (portfolio.holdings[ticker] || 0) + shares; } else { // sell if (!portfolio.holdings[ticker] || portfolio.holdings[ticker] < shares) { alert('Not enough shares to sell.'); return; } portfolio.cash += cost; portfolio.holdings[ticker] -= shares; if (portfolio.holdings[ticker] === 0) delete portfolio.holdings[ticker]; } document.getElementById('trade-shares').value = ''; analyzePortfolio(); } document.getElementById('execute-trade-btn').addEventListener('click', executeTrade); // --- PDF GENERATION --- async function generatePdfReport() { downloadPdfBtn.disabled = true; downloadPdfBtn.textContent = 'Generating...'; const { totalValue, netPL, holdingsValue, allocation, portfolioHistory, spyHistory } = analysisResults; const plPercent = (netPL / (totalValue - netPL)) * 100; const tableRows = Object.entries(portfolio.holdings).map(([ticker, shares]) => { const value = shares * MOCK_MARKET_DATA[ticker].price; return `${ticker}${MOCK_MARKET_DATA[ticker].name}${shares.toLocaleString()}$${value.toLocaleString()}${((value/holdingsValue)*100).toFixed(2)}%`; }).join(''); const reportHtml = ` `; const pdfTemplate = document.getElementById('pdf-template'); pdfTemplate.innerHTML = reportHtml; pdfTemplate.classList.remove('invisible'); new Chart(document.getElementById('pdf-performance-chart'), { type: 'line', data: charts.performance.data, options: { ...charts.performance.options, animation: { duration: 0 }, maintainAspectRatio: false } }); new Chart(document.getElementById('pdf-allocation-chart'), { type: 'doughnut', data: charts.allocation.data, options: { ...charts.allocation.options, animation: { duration: 0 }, maintainAspectRatio: false } }); setTimeout(async () => { try { const { jsPDF } = window.jspdf; const pdf = new jsPDF({ orientation: 'p', unit: 'pt', format: 'a4' }); const pages = pdfTemplate.querySelectorAll('.pdf-page'); for (let i = 0; i < pages.length; i++) { const canvas = await html2canvas(pages[i], { scale: 2 }); const imgData = canvas.toDataURL('image/png'); if (i > 0) pdf.addPage(); const pdfWidth = pdf.internal.pageSize.getWidth(), pdfHeight = (canvas.height * pdfWidth) / canvas.width; pdf.addImage(imgData, 'PNG', 0, 0, pdfWidth, pdfHeight); } pdf.save('Hedge_Fund_Performance_Report.pdf'); } catch (e) { console.error('PDF Generation Error:', e); } finally { downloadPdfBtn.disabled = false; downloadPdfBtn.textContent = 'Download PDF Report'; pdfTemplate.classList.add('invisible'); pdfTemplate.innerHTML = ''; } }, 500); } downloadPdfBtn.addEventListener('click', generatePdfReport); // --- INITIALIZATION --- switchTab(0); analyzePortfolio(); });