further refinement of roi calculator
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6f6c80480f
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SHA256:kOXg1R6c11XW3/Pt9dbLdQvOJGFAy+B2K6v6PtRWBGQ
6 changed files with 962 additions and 565 deletions
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@ -84,7 +84,7 @@ class ChartManager {
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});
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// Model Comparison Chart (replaces generic Cash Flow Chart)
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const modelComparisonCanvas = document.getElementById('cashFlowChart');
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const modelComparisonCanvas = document.getElementById('modelComparisonChart');
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if (!modelComparisonCanvas) {
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console.error('Model comparison chart canvas not found');
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return;
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@ -98,7 +98,7 @@ class ChartManager {
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maintainAspectRatio: false,
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plugins: {
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legend: { position: 'top' },
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title: { display: true, text: 'Investment Model Performance Comparison' }
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title: { display: true, text: 'Investment Model Comparison' }
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},
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scales: {
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y: {
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@ -111,6 +111,35 @@ class ChartManager {
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}
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}
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});
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// Performance Comparison Chart (for cashFlowChart canvas)
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const performanceCanvas = document.getElementById('cashFlowChart');
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if (!performanceCanvas) {
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console.error('Performance comparison chart canvas not found');
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return;
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}
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const performanceCtx = performanceCanvas.getContext('2d');
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this.charts.performance = new Chart(performanceCtx, {
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type: 'bar',
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data: { labels: [], datasets: [] },
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options: {
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responsive: true,
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maintainAspectRatio: false,
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plugins: {
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legend: { position: 'top' },
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title: { display: true, text: 'Model Performance Comparison' }
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},
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scales: {
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y: {
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beginAtZero: true,
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title: { display: true, text: 'ROI (%)' }
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},
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x: {
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title: { display: true, text: 'Growth Scenario' }
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}
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}
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}
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});
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} catch (error) {
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console.error('Error initializing charts:', error);
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this.showChartError('Failed to initialize charts. Please refresh the page.');
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@ -119,7 +148,7 @@ class ChartManager {
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showChartError(message) {
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// Show error message in place of charts
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const chartContainers = ['instanceGrowthChart', 'revenueChart', 'cashFlowChart'];
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const chartContainers = ['instanceGrowthChart', 'revenueChart', 'cashFlowChart', 'modelComparisonChart'];
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chartContainers.forEach(containerId => {
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const container = document.getElementById(containerId);
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if (container) {
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@ -152,7 +181,7 @@ class ChartManager {
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// Update ROI Progression Chart
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this.charts.roiProgression.data.labels = monthLabels;
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this.charts.roiProgression.data.datasets = scenarios.map(scenario => ({
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this.charts.roiProgression.data.datasets = scenarios.filter(s => this.calculator.results[s]).map(scenario => ({
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label: `${this.calculator.scenarios[scenario].name} (${this.calculator.results[scenario].investmentModel})`,
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data: this.calculator.monthlyData[scenario].map(d => d.roiPercent),
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borderColor: colors[scenario],
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@ -166,7 +195,7 @@ class ChartManager {
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// Update Net Position Chart (Break-Even Analysis)
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this.charts.netPosition.data.labels = monthLabels;
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this.charts.netPosition.data.datasets = scenarios.map(scenario => ({
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this.charts.netPosition.data.datasets = scenarios.filter(s => this.calculator.results[s]).map(scenario => ({
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label: `${this.calculator.scenarios[scenario].name} Net Position`,
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data: this.calculator.monthlyData[scenario].map(d => d.netPosition),
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borderColor: colors[scenario],
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@ -180,37 +209,122 @@ class ChartManager {
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}));
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this.charts.netPosition.update();
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// Update Model Comparison Chart
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const scenarioLabels = scenarios.map(s => this.calculator.scenarios[s].name);
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const currentInvestmentModel = Object.values(this.calculator.results)[0]?.investmentModel || 'direct';
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// Update Model Comparison Chart - Side-by-side comparison of both models
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const inputs = this.calculator.getInputValues();
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// Show comparison with both models for the same scenarios
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this.charts.modelComparison.data.labels = scenarioLabels;
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this.charts.modelComparison.data.datasets = [{
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label: `${currentInvestmentModel === 'loan' ? 'Loan Model' : 'Direct Investment'} - Final Return`,
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data: scenarios.map(scenario => this.calculator.results[scenario].cspRevenue),
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backgroundColor: scenarios.map(scenario => colors[scenario] + '80'),
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borderColor: scenarios.map(scenario => colors[scenario]),
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borderWidth: 2
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}];
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// Calculate loan model net profit (fixed return regardless of scenario)
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const loanMonthlyPayment = this.calculateLoanPayment(inputs.investmentAmount, inputs.loanInterestRate, inputs.timeframe);
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const loanTotalPayments = loanMonthlyPayment * (inputs.timeframe * 12);
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const loanNetProfit = loanTotalPayments - inputs.investmentAmount;
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// Add performance metrics for direct investment
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if (currentInvestmentModel === 'direct') {
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this.charts.modelComparison.data.datasets.push({
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label: 'Performance Bonus Impact',
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data: scenarios.map(scenario =>
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this.calculator.results[scenario].avgPerformanceBonus *
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this.calculator.results[scenario].cspRevenue
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),
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backgroundColor: '#17a2b8',
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borderColor: '#17a2b8',
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// Prepare scenario-based comparison
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const enabledScenarios = scenarios.filter(s => this.calculator.scenarios[s].enabled);
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const comparisonLabels = enabledScenarios.map(s => this.calculator.scenarios[s].name);
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// Loan model data (same profit for all scenarios since it's fixed)
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const loanModelData = enabledScenarios.map(() => loanNetProfit);
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// Direct investment data (varies by scenario performance)
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const directInvestmentData = enabledScenarios.map(scenario => {
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const scenarioResult = this.calculator.results[scenario];
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if (!scenarioResult) return 0;
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return scenarioResult.cspRevenue - inputs.investmentAmount;
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});
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// Performance bonus data (shows the additional revenue from performance bonuses)
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const performanceBonusData = enabledScenarios.map(scenario => {
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const monthlyData = this.calculator.monthlyData[scenario] || [];
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const totalPerformanceBonus = monthlyData.reduce((sum, month) => {
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// Calculate the bonus revenue (difference from standard share)
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const standardRevenue = month.monthlyRevenue * inputs.servalaShare;
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const actualServalaRevenue = month.servalaRevenue;
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const bonusAmount = Math.max(0, standardRevenue - actualServalaRevenue); // CSP gets this as bonus
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return sum + bonusAmount;
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}, 0);
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return totalPerformanceBonus;
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});
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this.charts.modelComparison.data.labels = comparisonLabels;
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this.charts.modelComparison.data.datasets = [
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{
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label: `Loan Model (${(inputs.loanInterestRate * 100).toFixed(1)}% fixed return)`,
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data: loanModelData,
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backgroundColor: '#ffc107',
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borderColor: '#e0a800',
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borderWidth: 2
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});
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}
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},
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{
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label: 'Direct Investment (base return)',
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data: directInvestmentData,
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backgroundColor: enabledScenarios.map(scenario => colors[scenario] + '80'),
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borderColor: enabledScenarios.map(scenario => colors[scenario]),
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borderWidth: 2
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},
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{
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label: 'Performance Bonus Impact',
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data: performanceBonusData,
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backgroundColor: enabledScenarios.map(scenario => colors[scenario] + '40'),
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borderColor: enabledScenarios.map(scenario => colors[scenario]),
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borderWidth: 2,
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borderDash: [5, 5]
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}
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];
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this.charts.modelComparison.update();
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// Update Performance Comparison Chart (ROI comparison for both models)
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this.charts.performance.data.labels = comparisonLabels;
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// Calculate ROI for loan model (same for all scenarios)
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const loanROI = (loanNetProfit / inputs.investmentAmount) * 100;
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const loanROIData = enabledScenarios.map(() => loanROI);
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// Get ROI for direct investment (varies by scenario)
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const directROIData = enabledScenarios.map(scenario => {
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const result = this.calculator.results[scenario];
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return result ? result.roi : 0;
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});
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this.charts.performance.data.datasets = [
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{
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label: `Loan Model ROI (${(inputs.loanInterestRate * 100).toFixed(1)}% fixed)`,
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data: loanROIData,
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backgroundColor: '#ffc107',
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borderColor: '#e0a800',
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borderWidth: 2
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},
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{
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label: 'Direct Investment ROI',
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data: directROIData,
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backgroundColor: enabledScenarios.map(scenario => colors[scenario] + '80'),
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borderColor: enabledScenarios.map(scenario => colors[scenario]),
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borderWidth: 2
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}
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];
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this.charts.performance.update();
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} catch (error) {
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console.error('Error updating charts:', error);
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}
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}
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// Helper method to calculate loan payment
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calculateLoanPayment(principal, annualRate, years) {
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try {
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const monthlyRate = annualRate / 12;
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const numberOfPayments = years * 12;
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if (monthlyRate === 0) {
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return principal / numberOfPayments;
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}
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const monthlyPayment = principal * (monthlyRate * Math.pow(1 + monthlyRate, numberOfPayments)) /
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(Math.pow(1 + monthlyRate, numberOfPayments) - 1);
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return monthlyPayment;
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} catch (error) {
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console.error('Error calculating loan payment:', error);
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return 0;
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}
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}
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}
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