${bank2.name} (${bank2.shortName})
Last Meeting: ${bank2.lastMeeting} | Rate: ${bank2.currentRate.toFixed(2)}%
${bank2.summary}
`;
}
loaderEl.style.display = 'none';
resultsEl.classList.remove('hidden');
}, 1000);
};
// --- TAB 3: HISTORICAL VIEW ---
function renderHistoricalChart() {
const histCtx = document.getElementById('historical-chart')?.getContext('2d');
if (!histCtx) return;
const fedHistory = centralBanksData['FED'].historicalRates;
const datasets = [];
const colors = ['#3b82f6', '#10b981', '#f97316', '#8b5cf6', '#ec4899'];
let colorIndex = 0;
for (const key in centralBanksData) {
if (key === 'FED') continue;
const bankHistory = centralBanksData[key].historicalRates;
const spreadData = bankHistory.map((point, i) => {
// Find corresponding Fed rate by date
const fedPoint = fedHistory.find(fp => fp.t === point.t) || fedHistory[i]; // Fallback to index match
return { t: new Date(point.t), y: (point.y - fedPoint.y).toFixed(2) };
});
datasets.push({
label: `${key}/Fed Spread`,
data: spreadData,
borderColor: colors[colorIndex % colors.length],
backgroundColor: colors[colorIndex % colors.length] + '33', // with opacity
tension: 0.1,
fill: false,
});
colorIndex++;
}
if (historicalChart) historicalChart.destroy();
historicalChart = new Chart(histCtx, {
type: 'line',
data: { datasets },
options: {
responsive: true,
maintainAspectRatio: false,
scales: {
x: { type: 'time', time: { unit: 'year' }, title: { display: true, text: 'Date' } },
y: { title: { display: true, text: 'Interest Rate Spread (%)' } }
}
}
});
}
// --- PDF DOWNLOAD FUNCTIONALITY ---
window.downloadPDF = async () => {
const { jsPDF } = window.jspdf;
const pdf = new jsPDF({ orientation: 'l', unit: 'mm', format: 'a4' });
const contentEl = document.getElementById(`tab-${currentTab}`);
if (!contentEl) return;
const downloadBtn = document.querySelector('button[onclick="downloadPDF()"]');
const originalText = downloadBtn.innerHTML;
downloadBtn.innerHTML = `
Generating...`;
downloadBtn.disabled = true;
try {
const canvas = await html2canvas(contentEl, { scale: 2, useCORS: true, logging: false });
const imgData = canvas.toDataURL('image/png');
const pdfWidth = pdf.internal.pageSize.getWidth();
const pdfHeight = pdf.internal.pageSize.getHeight();
const canvasWidth = canvas.width;
const canvasHeight = canvas.height;
const ratio = canvasWidth / canvasHeight;
const imgWidth = pdfWidth - 20; // with margin
const imgHeight = imgWidth / ratio;
pdf.text(`Central Bank Policy Divergence Report: ${currentTab.charAt(0).toUpperCase() + currentTab.slice(1)}`, 10, 10);
pdf.addImage(imgData, 'PNG', 10, 20, imgWidth, imgHeight);
pdf.save(`Central-Bank-Analyzer-${currentTab}.pdf`);
} catch (error) {
console.error("PDF generation failed:", error);
alert("An error occurred while generating the PDF.");
} finally {
downloadBtn.innerHTML = originalText;
downloadBtn.disabled = false;
if(window.lucide) window.lucide.createIcons();
}
};
// --- KICK IT OFF ---
init();
});
