The projection indicates the pension fund is at risk. While it does not become insolvent within the ${metrics.projectionYears}-year period, the solvency ratio shows a declining trend, ending at a low value of ${formatNumber(metrics.finalSolvencyRatio)}. This suggests that without changes to contributions, payouts, or investment strategy, the fund could face sustainability issues in the longer term.
`;
} else {
summary = `
The projection indicates the pension fund is sustainable over the next ${metrics.projectionYears} years. The fund's value is projected to grow to ${formatCurrency(metrics.finalFundValue)}, and the solvency ratio remains healthy, ending at ${formatNumber(metrics.finalSolvencyRatio)}. This suggests the fund is well-positioned to meet its future obligations under the current assumptions.
`;
}
container.innerHTML = `
Sustainability Analysis Summary
Overall Outlook: ${metrics.sustainabilityStatus}
${summary}
Key Projection Data
- Ending Fund Value: ${formatCurrency(metrics.finalFundValue)}
- Total Contributions Over Period: ${formatCurrency(metrics.totalContributions)}
- Total Payouts Over Period: ${formatCurrency(metrics.totalPayouts)}
- The fund's net cash flow (contributions minus payouts) is a critical factor. Early negative cash flows can significantly erode the principal asset base, making recovery difficult even with strong investment returns.
`;
};
// CALCULATION LOGIC
const runProjection = () => {
const initialFundValue = parseFloat(document.getElementById('initial-fund-value').value);
const projectionYears = parseInt(document.getElementById('projection-years').value);
let annualContributions = parseFloat(document.getElementById('annual-contributions').value);
let annualPayouts = parseFloat(document.getElementById('annual-payouts').value);
const investmentReturn = parseFloat(document.getElementById('investment-return').value) / 100;
const contributionGrowth = parseFloat(document.getElementById('contribution-growth').value) / 100;
const payoutGrowth = parseFloat(document.getElementById('payout-growth').value) / 100;
let fundValue = initialFundValue;
let totalContributions = 0;
let totalPayouts = 0;
let yearlyData = {
fundValues: [initialFundValue],
payouts: [annualPayouts],
solvencyRatios: [initialFundValue / annualPayouts]
};
let insolvencyYear = null;
for(let year = 1; year <= projectionYears; year++) {
// Grow contributions and payouts for the start of the year
annualContributions *= (1 + contributionGrowth);
annualPayouts *= (1 + payoutGrowth);
// Calculate investment growth on the starting value
const growthFromInvestment = fundValue * investmentReturn;
// Update fund value with growth, contributions, and payouts
fundValue = fundValue + growthFromInvestment + annualContributions - annualPayouts;
if (fundValue < 0 && !insolvencyYear) {
insolvencyYear = year;
fundValue = 0; // Don't let it go negative
}
totalContributions += annualContributions;
totalPayouts += annualPayouts;
yearlyData.fundValues.push(fundValue);
yearlyData.payouts.push(annualPayouts);
yearlyData.solvencyRatios.push(annualPayouts > 0 ? fundValue / annualPayouts : 0);
}
const finalFundValue = yearlyData.fundValues[projectionYears];
const finalSolvencyRatio = yearlyData.solvencyRatios[projectionYears];
let sustainabilityStatus;
if (insolvencyYear) {
sustainabilityStatus = 'Unsustainable';
} else if (finalSolvencyRatio < 5) { // Threshold for being "At Risk"
sustainabilityStatus = 'At Risk';
} else {
sustainabilityStatus = 'Sustainable';
}
projectionData = {
projectionYears, finalFundValue, finalSolvencyRatio,
insolvencyYear, sustainabilityStatus, totalContributions, totalPayouts, yearlyData,
inputs: { // For PDF
initialFundValue, projectionYears,
annualContributions: parseFloat(document.getElementById('annual-contributions').value),
annualPayouts: parseFloat(document.getElementById('annual-payouts').value),
investmentReturn: investmentReturn * 100,
contributionGrowth: contributionGrowth * 100,
payoutGrowth: payoutGrowth * 100
}
};
return projectionData;
};
const handleRecalculate = () => {
const metrics = runProjection();
renderKPIs(metrics);
renderCharts(metrics);
renderAnalysis(metrics);
switchTab('dashboard');
};
const generatePDF = () => {
if (!projectionData) return;
const { jsPDF } = window.jspdf;
const doc = new jsPDF();
const pageWidth = doc.internal.pageSize.width;
const margin = 15;
let y = margin;
const { inputs, ...metrics } = projectionData;
doc.setFont('helvetica', 'bold');
doc.setFontSize(22);
doc.text('Pension Fund Sustainability Report', pageWidth / 2, y, { align: 'center' });
y += 10;
doc.setFontSize(12);
doc.setFont('helvetica', 'normal');
doc.text(`Projection over ${inputs.projectionYears} years, generated on ${new Date().toLocaleDateString()}`, pageWidth / 2, y, { align: 'center' });
y += 15;
doc.setFontSize(16);
doc.setFont('helvetica', 'bold');
doc.text('Projection Summary', margin, y);
y += 8;
const summaryText = [
{ label: 'Overall Sustainability Status', value: metrics.sustainabilityStatus },
{ label: `Projected Fund Value`, value: formatCurrency(metrics.finalFundValue) },
{ label: 'Final Solvency Ratio', value: formatNumber(metrics.finalSolvencyRatio) },
{ label: 'Years to Insolvency', value: metrics.insolvencyYear || 'Not within projection period' },
];
doc.setFontSize(12);
summaryText.forEach(item => {
doc.setFont('helvetica', 'bold');
doc.text(item.label + ':', margin, y);
doc.setFont('helvetica', 'normal');
doc.text(item.value, pageWidth / 2, y);
y += 7;
});
y += 5;
doc.setDrawColor(220); // Light gray line
doc.line(margin, y, pageWidth - margin, y);
y += 10;
doc.setFontSize(16);
doc.setFont('helvetica', 'bold');
doc.text('Key Assumptions', margin, y);
y += 8;
const assumptionsText = [
{ label: 'Initial Fund Value', value: `$${inputs.initialFundValue.toLocaleString()}` },
{ label: 'Initial Annual Contributions', value: `$${inputs.annualContributions.toLocaleString()}` },
{ label: 'Initial Annual Payouts', value: `$${inputs.annualPayouts.toLocaleString()}` },
{ label: 'Avg. Investment Return', value: `${inputs.investmentReturn.toFixed(1)}%` },
{ label: 'Contribution Growth Rate', value: `${inputs.contributionGrowth.toFixed(1)}%` },
{ label: 'Payout Growth Rate', value: `${inputs.payoutGrowth.toFixed(1)}%` },
];
doc.setFontSize(12);
assumptionsText.forEach(item => {
doc.setFont('helvetica', 'bold');
doc.text(item.label + ':', margin, y);
doc.setFont('helvetica', 'normal');
doc.text(item.value, pageWidth / 2, y);
y += 7;
});
doc.addPage();
y = margin;
doc.setFontSize(16);
doc.setFont('helvetica', 'bold');
doc.text('Projection Charts', margin, y);
y += 5;
try {
const projectionImg = charts.projection.toBase64Image();
const solvencyImg = charts.solvency.toBase64Image();
doc.addImage(projectionImg, 'PNG', margin, y, pageWidth - (margin * 2), 100);
y += 110;
doc.addImage(solvencyImg, 'PNG', margin, y, pageWidth - (margin * 2), 100);
} catch(e) {
console.error("Error adding charts to PDF:", e);
doc.text("Could not render charts.", margin, y);
}
doc.save('Pension_Fund_Sustainability_Report.pdf');
};
// APP NAVIGATION
const switchTab = (tabName) => {
if (!tabs.includes(tabName)) return;
currentTab = tabName;
Object.values(tabContent).forEach(content => content.classList.add('hidden'));
tabContent[tabName].classList.remove('hidden');
Object.values(tabButtons).forEach(button => button.classList.remove('active'));
tabButtons[tabName].classList.add('active');
updateNavButtons();
};
const updateNavButtons = () => {
const currentIndex = tabs.indexOf(currentTab);
prevBtn.disabled = currentIndex === 0;
nextBtn.disabled = currentIndex === tabs.length - 1;
};
const navigateTabs = (direction) => {
const currentIndex = tabs.indexOf(currentTab);
let newIndex = direction === 'next' ? Math.min(currentIndex + 1, tabs.length - 1) : Math.max(currentIndex - 1, 0);
switchTab(tabs[newIndex]);
};
// INITIALIZATION
document.getElementById('recalculate-btn').addEventListener('click', handleRecalculate);
document.getElementById('download-pdf-btn-dashboard').addEventListener('click', generatePDF);
window.app = { switchTab, navigateTabs };
handleRecalculate(); // Run with default values on load
updateNavButtons();
});
