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| <html lang="es"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <title>Calculadora de Crédito</title> | |
| <script src="https://cdn.tailwindcss.com"></script> | |
| <script src="https://cdn.jsdelivr.net/npm/chart.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.5.1/jspdf.umd.min.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/xlsx/0.18.5/xlsx.full.min.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/2.0.5/FileSaver.min.js"></script> | |
| <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css"> | |
| <style> | |
| .dark-mode { | |
| background-color: #1a202c; | |
| color: #f7fafc; | |
| } | |
| .dark-mode .card { | |
| background-color: #2d3748; | |
| border-color: #4a5568; | |
| } | |
| .dark-mode input, .dark-mode select { | |
| background-color: #2d3748; | |
| border-color: #4a5568; | |
| color: #f7fafc; | |
| } | |
| .dark-mode .btn-primary { | |
| background-color: #4299e1; | |
| } | |
| .dark-mode .btn-secondary { | |
| background-color: #718096; | |
| } | |
| .dark-mode .table-container { | |
| background-color: #2d3748; | |
| } | |
| .dark-mode table { | |
| color: #f7fafc; | |
| } | |
| .dark-mode table th, .dark-mode table td { | |
| border-color: #4a5568; | |
| } | |
| .dark-mode table tr:nth-child(even) { | |
| background-color: #4a5568; | |
| } | |
| .transition-all { | |
| transition: all 0.3s ease; | |
| } | |
| .card { | |
| box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); | |
| } | |
| .btn-primary { | |
| background-color: #3182ce; | |
| color: white; | |
| } | |
| .btn-primary:hover { | |
| background-color: #2c5282; | |
| } | |
| .btn-secondary { | |
| background-color: #a0aec0; | |
| color: white; | |
| } | |
| .btn-secondary:hover { | |
| background-color: #718096; | |
| } | |
| .table-container { | |
| max-height: 400px; | |
| overflow-y: auto; | |
| } | |
| table { | |
| width: 100%; | |
| border-collapse: collapse; | |
| } | |
| table th, table td { | |
| padding: 0.75rem; | |
| text-align: left; | |
| border-bottom: 1px solid #e2e8f0; | |
| } | |
| table tr:nth-child(even) { | |
| background-color: #f8fafc; | |
| } | |
| .chart-container { | |
| position: relative; | |
| height: 300px; | |
| width: 100%; | |
| } | |
| .tooltip { | |
| position: relative; | |
| display: inline-block; | |
| } | |
| .tooltip .tooltip-text { | |
| visibility: hidden; | |
| width: 200px; | |
| background-color: #555; | |
| color: #fff; | |
| text-align: center; | |
| border-radius: 6px; | |
| padding: 5px; | |
| position: absolute; | |
| z-index: 1; | |
| bottom: 125%; | |
| left: 50%; | |
| margin-left: -100px; | |
| opacity: 0; | |
| transition: opacity 0.3s; | |
| } | |
| .tooltip:hover .tooltip-text { | |
| visibility: visible; | |
| opacity: 1; | |
| } | |
| </style> | |
| </head> | |
| <body class="bg-gray-100 transition-all"> | |
| <div class="container mx-auto px-4 py-8"> | |
| <!-- Header --> | |
| <header class="flex justify-between items-center mb-8"> | |
| <h1 class="text-3xl font-bold text-blue-800" id="title">Calculadora de Crédito</h1> | |
| <div class="flex space-x-4"> | |
| <div class="tooltip"> | |
| <button id="darkModeToggle" class="p-2 rounded-full bg-gray-200 hover:bg-gray-300"> | |
| <i class="fas fa-moon"></i> | |
| </button> | |
| <span class="tooltip-text" id="darkModeTooltip">Modo oscuro</span> | |
| </div> | |
| <div class="relative"> | |
| <select id="languageSelect" class="p-2 rounded border border-gray-300 bg-white"> | |
| <option value="es">Español</option> | |
| <option value="en">English</option> | |
| <option value="fr">Français</option> | |
| </select> | |
| </div> | |
| </div> | |
| </header> | |
| <!-- Main Content --> | |
| <div class="grid grid-cols-1 lg:grid-cols-3 gap-6"> | |
| <!-- Input Section --> | |
| <div class="lg:col-span-1"> | |
| <div class="card bg-white rounded-lg shadow p-6"> | |
| <h2 class="text-xl font-semibold mb-4" id="inputTitle">Datos del Crédito</h2> | |
| <div class="mb-4"> | |
| <label for="amount" class="block text-sm font-medium text-gray-700 mb-1" id="amountLabel">Monto Total</label> | |
| <input type="number" id="amount" class="w-full p-2 border border-gray-300 rounded focus:ring-blue-500 focus:border-blue-500" placeholder="0.00" min="0"> | |
| </div> | |
| <div class="mb-4"> | |
| <label for="currency" class="block text-sm font-medium text-gray-700 mb-1" id="currencyLabel">Moneda</label> | |
| <select id="currency" class="w-full p-2 border border-gray-300 rounded"> | |
| <option value="MXN">MXN - Peso Mexicano</option> | |
| <option value="USD">USD - Dólar Estadounidense</option> | |
| <option value="CAD">CAD - Dólar Canadiense</option> | |
| <option value="CLP">CLP - Peso Chileno</option> | |
| <option value="ARS">ARS - Peso Argentino</option> | |
| <option value="COP">COP - Peso Colombiano</option> | |
| <option value="EUR">EUR - Euro</option> | |
| </select> | |
| </div> | |
| <div class="mb-6"> | |
| <label class="block text-sm font-medium text-gray-700 mb-1" id="termLabel">Plazo del Financiamiento Intermedio (20%)</label> | |
| <div class="flex space-x-4 mt-2"> | |
| <div class="flex items-center"> | |
| <input id="term6" name="term" type="radio" value="6" class="h-4 w-4 text-blue-600 focus:ring-blue-500" checked> | |
| <label for="term6" class="ml-2 block text-sm text-gray-700"> | |
| <span id="term6Label">6 meses (4.99%)</span> | |
| </label> | |
| </div> | |
| <div class="flex items-center"> | |
| <input id="term9" name="term" type="radio" value="9" class="h-4 w-4 text-blue-600 focus:ring-blue-500"> | |
| <label for="term9" class="ml-2 block text-sm text-gray-700"> | |
| <span id="term9Label">9 meses (6.99%)</span> | |
| </label> | |
| </div> | |
| </div> | |
| </div> | |
| <button id="calculateBtn" class="w-full btn-primary py-2 px-4 rounded font-medium" id="calculateBtnText"> | |
| Calcular | |
| </button> | |
| </div> | |
| </div> | |
| <!-- Results Section --> | |
| <div class="lg:col-span-2"> | |
| <div class="card bg-white rounded-lg shadow p-6 mb-6"> | |
| <h2 class="text-xl font-semibold mb-4" id="summaryTitle">Resumen del Crédito</h2> | |
| <div class="grid grid-cols-1 md:grid-cols-2 gap-4 mb-6"> | |
| <div class="bg-blue-50 p-4 rounded-lg"> | |
| <p class="text-sm text-blue-800 font-medium" id="totalAmountLabel">Monto Total</p> | |
| <p id="totalAmount" class="text-2xl font-bold text-blue-900">$0.00</p> | |
| </div> | |
| <div class="bg-green-50 p-4 rounded-lg"> | |
| <p class="text-sm text-green-800 font-medium" id="downPaymentLabel">Enganche (10%)</p> | |
| <p id="downPayment" class="text-2xl font-bold text-green-900">$0.00</p> | |
| </div> | |
| <div class="bg-yellow-50 p-4 rounded-lg"> | |
| <p class="text-sm text-yellow-800 font-medium" id="interestLabel">Interés Generado (20%)</p> | |
| <p id="interest" class="text-2xl font-bold text-yellow-900">$0.00</p> | |
| </div> | |
| <div class="bg-purple-50 p-4 rounded-lg"> | |
| <p class="text-sm text-purple-800 font-medium" id="totalPaymentLabel">Total a Pagar</p> | |
| <p id="totalPayment" class="text-2xl font-bold text-purple-900">$0.00</p> | |
| </div> | |
| </div> | |
| <div class="grid grid-cols-1 md:grid-cols-2 gap-6"> | |
| <div> | |
| <h3 class="font-medium mb-2" id="monthlyPaymentsLabel">Pagos Mensuales</h3> | |
| <div class="bg-gray-50 p-4 rounded-lg"> | |
| <p class="text-sm text-gray-600" id="intermediatePaymentLabel">Financiamiento intermedio (20% con interés):</p> | |
| <p id="intermediatePayment" class="text-lg font-semibold">$0.00</p> | |
| <p class="text-sm text-gray-600 mt-2" id="longTermPaymentLabel">Financiamiento largo plazo (70% sin interés):</p> | |
| <p id="longTermPayment" class="text-lg font-semibold">$0.00</p> | |
| </div> | |
| </div> | |
| <div> | |
| <h3 class="font-medium mb-2" id="comparisonTitle">Comparación de Plazos</h3> | |
| <div class="bg-gray-50 p-4 rounded-lg"> | |
| <p class="text-sm text-gray-600" id="term6ComparisonLabel">6 meses: Total interés</p> | |
| <p id="term6Comparison" class="text-lg font-semibold">$0.00</p> | |
| <p class="text-sm text-gray-600 mt-2" id="term9ComparisonLabel">9 meses: Total interés</p> | |
| <p id="term9Comparison" class="text-lg font-semibold">$0.00</p> | |
| </div> | |
| </div> | |
| </div> | |
| </div> | |
| <!-- Charts Section --> | |
| <div class="grid grid-cols-1 md:grid-cols-2 gap-6 mb-6"> | |
| <div class="card bg-white rounded-lg shadow p-4"> | |
| <h3 class="font-medium mb-2" id="distributionChartTitle">Distribución del Pago</h3> | |
| <div class="chart-container"> | |
| <canvas id="pieChart"></canvas> | |
| </div> | |
| </div> | |
| <div class="card bg-white rounded-lg shadow p-4"> | |
| <h3 class="font-medium mb-2" id="paymentEvolutionTitle">Evolución de Pagos</h3> | |
| <div class="chart-container"> | |
| <canvas id="lineChart"></canvas> | |
| </div> | |
| </div> | |
| </div> | |
| <!-- Amortization Table --> | |
| <div class="card bg-white rounded-lg shadow p-6"> | |
| <div class="flex justify-between items-center mb-4"> | |
| <h2 class="text-xl font-semibold" id="amortizationTitle">Tabla de Amortización</h2> | |
| <div class="flex space-x-2"> | |
| <button id="exportExcel" class="btn-secondary py-1 px-3 rounded text-sm"> | |
| <i class="fas fa-file-excel mr-1"></i> | |
| <span id="exportExcelText">Excel</span> | |
| </button> | |
| <button id="exportPDF" class="btn-secondary py-1 px-3 rounded text-sm"> | |
| <i class="fas fa-file-pdf mr-1"></i> | |
| <span id="exportPDFText">PDF</span> | |
| </button> | |
| </div> | |
| </div> | |
| <div class="table-container"> | |
| <table id="amortizationTable"> | |
| <thead> | |
| <tr class="bg-gray-100"> | |
| <th class="py-2" id="monthHeader">Mes</th> | |
| <th class="py-2" id="intermediatePaymentHeader">Pago 20% (con interés)</th> | |
| <th class="py-2" id="longTermPaymentHeader">Pago 70% (sin interés)</th> | |
| <th class="py-2" id="remainingBalanceHeader">Saldo Restante</th> | |
| </tr> | |
| </thead> | |
| <tbody id="amortizationBody"> | |
| <!-- Table content will be generated by JavaScript --> | |
| </tbody> | |
| </table> | |
| </div> | |
| </div> | |
| </div> | |
| </div> | |
| </div> | |
| <script> | |
| // Translations | |
| const translations = { | |
| es: { | |
| title: "Calculadora de Crédito", | |
| inputTitle: "Datos del Crédito", | |
| amountLabel: "Monto Total", | |
| currencyLabel: "Moneda", | |
| termLabel: "Plazo del Financiamiento Intermedio (20%)", | |
| term6Label: "6 meses (4.99%)", | |
| term9Label: "9 meses (6.99%)", | |
| calculateBtnText: "Calcular", | |
| summaryTitle: "Resumen del Crédito", | |
| totalAmountLabel: "Monto Total", | |
| downPaymentLabel: "Enganche (10%)", | |
| interestLabel: "Interés Generado (20%)", | |
| totalPaymentLabel: "Total a Pagar", | |
| monthlyPaymentsLabel: "Pagos Mensuales", | |
| intermediatePaymentLabel: "Financiamiento intermedio (20% con interés):", | |
| longTermPaymentLabel: "Financiamiento largo plazo (70% sin interés):", | |
| comparisonTitle: "Comparación de Plazos", | |
| term6ComparisonLabel: "6 meses: Total interés", | |
| term9ComparisonLabel: "9 meses: Total interés", | |
| distributionChartTitle: "Distribución del Pago", | |
| paymentEvolutionTitle: "Evolución de Pagos", | |
| amortizationTitle: "Tabla de Amortización", | |
| exportExcelText: "Excel", | |
| exportPDFText: "PDF", | |
| monthHeader: "Mes", | |
| intermediatePaymentHeader: "Pago 20% (con interés)", | |
| longTermPaymentHeader: "Pago 70% (sin interés)", | |
| remainingBalanceHeader: "Saldo Restante", | |
| darkModeTooltip: "Modo oscuro" | |
| }, | |
| en: { | |
| title: "Loan Calculator", | |
| inputTitle: "Loan Data", | |
| amountLabel: "Total Amount", | |
| currencyLabel: "Currency", | |
| termLabel: "Intermediate Financing Term (20%)", | |
| term6Label: "6 months (4.99%)", | |
| term9Label: "9 months (6.99%)", | |
| calculateBtnText: "Calculate", | |
| summaryTitle: "Loan Summary", | |
| totalAmountLabel: "Total Amount", | |
| downPaymentLabel: "Down Payment (10%)", | |
| interestLabel: "Generated Interest (20%)", | |
| totalPaymentLabel: "Total Payment", | |
| monthlyPaymentsLabel: "Monthly Payments", | |
| intermediatePaymentLabel: "Intermediate financing (20% with interest):", | |
| longTermPaymentLabel: "Long term financing (70% without interest):", | |
| comparisonTitle: "Term Comparison", | |
| term6ComparisonLabel: "6 months: Total interest", | |
| term9ComparisonLabel: "9 months: Total interest", | |
| distributionChartTitle: "Payment Distribution", | |
| paymentEvolutionTitle: "Payment Evolution", | |
| amortizationTitle: "Amortization Table", | |
| exportExcelText: "Excel", | |
| exportPDFText: "PDF", | |
| monthHeader: "Month", | |
| intermediatePaymentHeader: "20% Payment (with interest)", | |
| longTermPaymentHeader: "70% Payment (without interest)", | |
| remainingBalanceHeader: "Remaining Balance", | |
| darkModeTooltip: "Dark mode" | |
| }, | |
| fr: { | |
| title: "Calculateur de Crédit", | |
| inputTitle: "Données du Crédit", | |
| amountLabel: "Montant Total", | |
| currencyLabel: "Devise", | |
| termLabel: "Durée du Financement Intermédiaire (20%)", | |
| term6Label: "6 mois (4.99%)", | |
| term9Label: "9 mois (6.99%)", | |
| calculateBtnText: "Calculer", | |
| summaryTitle: "Résumé du Crédit", | |
| totalAmountLabel: "Montant Total", | |
| downPaymentLabel: "Acompte (10%)", | |
| interestLabel: "Intérêt Généré (20%)", | |
| totalPaymentLabel: "Total à Payer", | |
| monthlyPaymentsLabel: "Paiements Mensuels", | |
| intermediatePaymentLabel: "Financement intermédiaire (20% avec intérêt):", | |
| longTermPaymentLabel: "Financement à long terme (70% sans intérêt):", | |
| comparisonTitle: "Comparaison des Durées", | |
| term6ComparisonLabel: "6 mois: Intérêt total", | |
| term9ComparisonLabel: "9 mois: Intérêt total", | |
| distributionChartTitle: "Répartition des Paiements", | |
| paymentEvolutionTitle: "Évolution des Paiements", | |
| amortizationTitle: "Tableau d'Amortissement", | |
| exportExcelText: "Excel", | |
| exportPDFText: "PDF", | |
| monthHeader: "Mois", | |
| intermediatePaymentHeader: "Paiement 20% (avec intérêt)", | |
| longTermPaymentHeader: "Paiement 70% (sans intérêt)", | |
| remainingBalanceHeader: "Solde Restant", | |
| darkModeTooltip: "Mode sombre" | |
| } | |
| }; | |
| // DOM Elements | |
| const amountInput = document.getElementById('amount'); | |
| const currencySelect = document.getElementById('currency'); | |
| const term6Radio = document.getElementById('term6'); | |
| const term9Radio = document.getElementById('term9'); | |
| const calculateBtn = document.getElementById('calculateBtn'); | |
| const languageSelect = document.getElementById('languageSelect'); | |
| const darkModeToggle = document.getElementById('darkModeToggle'); | |
| const darkModeTooltip = document.getElementById('darkModeTooltip'); | |
| // Results Elements | |
| const totalAmountEl = document.getElementById('totalAmount'); | |
| const downPaymentEl = document.getElementById('downPayment'); | |
| const interestEl = document.getElementById('interest'); | |
| const totalPaymentEl = document.getElementById('totalPayment'); | |
| const intermediatePaymentEl = document.getElementById('intermediatePayment'); | |
| const longTermPaymentEl = document.getElementById('longTermPayment'); | |
| const term6ComparisonEl = document.getElementById('term6Comparison'); | |
| const term9ComparisonEl = document.getElementById('term9Comparison'); | |
| const amortizationBody = document.getElementById('amortizationBody'); | |
| // Charts | |
| let pieChart, lineChart; | |
| // Dark Mode | |
| let darkMode = false; | |
| // Current language | |
| let currentLanguage = 'es'; | |
| // Initialize the calculator | |
| function init() { | |
| // Event Listeners | |
| calculateBtn.addEventListener('click', calculateLoan); | |
| amountInput.addEventListener('input', calculateLoan); | |
| term6Radio.addEventListener('change', calculateLoan); | |
| term9Radio.addEventListener('change', calculateLoan); | |
| languageSelect.addEventListener('change', changeLanguage); | |
| darkModeToggle.addEventListener('click', toggleDarkMode); | |
| document.getElementById('exportExcel').addEventListener('click', exportToExcel); | |
| document.getElementById('exportPDF').addEventListener('click', exportToPDF); | |
| // Initial calculation | |
| calculateLoan(); | |
| } | |
| // Calculate loan details | |
| function calculateLoan() { | |
| const amount = parseFloat(amountInput.value) || 0; | |
| const currency = currencySelect.value; | |
| const term = term6Radio.checked ? 6 : 9; | |
| const interestRate = term6Radio.checked ? 0.0499 : 0.0699; | |
| // Calculate payments | |
| const downPayment = amount * 0.1; | |
| const intermediateAmount = amount * 0.2; | |
| const longTermAmount = amount * 0.7; | |
| // Calculate intermediate payment with compound interest | |
| const monthlyRate = interestRate / 12; | |
| const intermediateMonthlyPayment = intermediateAmount * (monthlyRate * Math.pow(1 + monthlyRate, term)) / (Math.pow(1 + monthlyRate, term) - 1); | |
| const totalIntermediatePayment = intermediateMonthlyPayment * term; | |
| const interestPaid = totalIntermediatePayment - intermediateAmount; | |
| // Calculate long term payment (48 months no interest) | |
| const longTermMonthlyPayment = longTermAmount / 48; | |
| // Calculate total payment | |
| const totalPayment = downPayment + totalIntermediatePayment + longTermAmount; | |
| // Calculate comparison values | |
| const term6MonthlyRate = 0.0499 / 12; | |
| const term6IntermediateMonthlyPayment = intermediateAmount * (term6MonthlyRate * Math.pow(1 + term6MonthlyRate, 6)) / (Math.pow(1 + term6MonthlyRate, 6) - 1); | |
| const term6TotalInterest = (term6IntermediateMonthlyPayment * 6) - intermediateAmount; | |
| const term9MonthlyRate = 0.0699 / 12; | |
| const term9IntermediateMonthlyPayment = intermediateAmount * (term9MonthlyRate * Math.pow(1 + term9MonthlyRate, 9)) / (Math.pow(1 + term9MonthlyRate, 9) - 1); | |
| const term9TotalInterest = (term9IntermediateMonthlyPayment * 9) - intermediateAmount; | |
| // Update UI | |
| updateResults(currency, amount, downPayment, interestPaid, totalPayment, intermediateMonthlyPayment, longTermMonthlyPayment, term6TotalInterest, term9TotalInterest); | |
| updateAmortizationTable(currency, term, intermediateMonthlyPayment, longTermMonthlyPayment, intermediateAmount, longTermAmount); | |
| updateCharts(currency, downPayment, intermediateAmount + interestPaid, longTermAmount); | |
| } | |
| // Update results in UI | |
| function updateResults(currency, amount, downPayment, interest, totalPayment, intermediatePayment, longTermPayment, term6Interest, term9Interest) { | |
| totalAmountEl.textContent = formatCurrency(currency, amount); | |
| downPaymentEl.textContent = formatCurrency(currency, downPayment); | |
| interestEl.textContent = formatCurrency(currency, interest); | |
| totalPaymentEl.textContent = formatCurrency(currency, totalPayment); | |
| intermediatePaymentEl.textContent = formatCurrency(currency, intermediatePayment); | |
| longTermPaymentEl.textContent = formatCurrency(currency, longTermPayment); | |
| term6ComparisonEl.textContent = formatCurrency(currency, term6Interest); | |
| term9ComparisonEl.textContent = formatCurrency(currency, term9Interest); | |
| } | |
| // Update amortization table | |
| function updateAmortizationTable(currency, term, intermediatePayment, longTermPayment, intermediateAmount, longTermAmount) { | |
| amortizationBody.innerHTML = ''; | |
| let intermediateRemaining = intermediateAmount; | |
| let longTermRemaining = longTermAmount; | |
| for (let month = 1; month <= 48; month++) { | |
| const row = document.createElement('tr'); | |
| // Month column | |
| const monthCell = document.createElement('td'); | |
| monthCell.textContent = month; | |
| row.appendChild(monthCell); | |
| // Intermediate payment column | |
| const intermediateCell = document.createElement('td'); | |
| if (month <= term) { | |
| intermediateCell.textContent = formatCurrency(currency, intermediatePayment); | |
| intermediateRemaining -= intermediatePayment; | |
| } else { | |
| intermediateCell.textContent = formatCurrency(currency, 0); | |
| } | |
| row.appendChild(intermediateCell); | |
| // Long term payment column | |
| const longTermCell = document.createElement('td'); | |
| if (month <= 48) { | |
| longTermCell.textContent = formatCurrency(currency, longTermPayment); | |
| longTermRemaining -= longTermPayment; | |
| } else { | |
| longTermCell.textContent = formatCurrency(currency, 0); | |
| } | |
| row.appendChild(longTermCell); | |
| // Remaining balance column | |
| const remainingCell = document.createElement('td'); | |
| remainingCell.textContent = formatCurrency(currency, intermediateRemaining + longTermRemaining); | |
| row.appendChild(remainingCell); | |
| amortizationBody.appendChild(row); | |
| } | |
| } | |
| // Update charts | |
| function updateCharts(currency, downPayment, intermediateTotal, longTermAmount) { | |
| // Pie Chart | |
| const pieCtx = document.getElementById('pieChart').getContext('2d'); | |
| if (pieChart) { | |
| pieChart.destroy(); | |
| } | |
| pieChart = new Chart(pieCtx, { | |
| type: 'pie', | |
| data: { | |
| labels: [ | |
| translations[currentLanguage].downPaymentLabel, | |
| translations[currentLanguage].intermediatePaymentHeader, | |
| translations[currentLanguage].longTermPaymentHeader | |
| ], | |
| datasets: [{ | |
| data: [downPayment, intermediateTotal, longTermAmount], | |
| backgroundColor: [ | |
| '#4299e1', | |
| '#f6ad55', | |
| '#9f7aea' | |
| ], | |
| borderWidth: 1 | |
| }] | |
| }, | |
| options: { | |
| responsive: true, | |
| maintainAspectRatio: false, | |
| plugins: { | |
| tooltip: { | |
| callbacks: { | |
| label: function(context) { | |
| const label = context.label || ''; | |
| const value = context.raw || 0; | |
| return `${label}: ${formatCurrency(currency, value)}`; | |
| } | |
| } | |
| } | |
| } | |
| } | |
| }); | |
| // Line Chart | |
| const lineCtx = document.getElementById('lineChart').getContext('2d'); | |
| if (lineChart) { | |
| lineChart.destroy(); | |
| } | |
| // Generate data for 48 months | |
| const term = term6Radio.checked ? 6 : 9; | |
| const intermediatePayment = parseFloat(intermediatePaymentEl.textContent.replace(/[^0-9.-]+/g,"")) || 0; | |
| const longTermPayment = parseFloat(longTermPaymentEl.textContent.replace(/[^0-9.-]+/g,"")) || 0; | |
| const labels = Array.from({length: 48}, (_, i) => i + 1); | |
| const intermediateData = labels.map((_, i) => i < term ? intermediatePayment : 0); | |
| const longTermData = labels.map(() => longTermPayment); | |
| const totalData = labels.map((_, i) => intermediateData[i] + longTermData[i]); | |
| lineChart = new Chart(lineCtx, { | |
| type: 'line', | |
| data: { | |
| labels: labels, | |
| datasets: [ | |
| { | |
| label: translations[currentLanguage].intermediatePaymentHeader, | |
| data: intermediateData, | |
| borderColor: '#f6ad55', | |
| backgroundColor: 'rgba(246, 173, 85, 0.1)', | |
| tension: 0.1, | |
| fill: true | |
| }, | |
| { | |
| label: translations[currentLanguage].longTermPaymentHeader, | |
| data: longTermData, | |
| borderColor: '#9f7aea', | |
| backgroundColor: 'rgba(159, 122, 234, 0.1)', | |
| tension: 0.1, | |
| fill: true | |
| }, | |
| { | |
| label: translations[currentLanguage].totalPaymentLabel, | |
| data: totalData, | |
| borderColor: '#4299e1', | |
| backgroundColor: 'rgba(66, 153, 225, 0.1)', | |
| tension: 0.1, | |
| fill: true | |
| } | |
| ] | |
| }, | |
| options: { | |
| responsive: true, | |
| maintainAspectRatio: false, | |
| scales: { | |
| y: { | |
| beginAtZero: true, | |
| ticks: { | |
| callback: function(value) { | |
| return formatCurrency(currency, value); | |
| } | |
| } | |
| } | |
| }, | |
| plugins: { | |
| tooltip: { | |
| callbacks: { | |
| label: function(context) { | |
| const label = context.dataset.label || ''; | |
| const value = context.raw || 0; | |
| return `${label}: ${formatCurrency(currency, value)}`; | |
| } | |
| } | |
| } | |
| } | |
| } | |
| }); | |
| } | |
| // Format currency | |
| function formatCurrency(currency, amount) { | |
| return new Intl.NumberFormat(getLocale(currency), { | |
| style: 'currency', | |
| currency: currency | |
| }).format(amount); | |
| } | |
| // Get locale based on currency | |
| function getLocale(currency) { | |
| const locales = { | |
| USD: 'en-US', | |
| MXN: 'es-MX', | |
| CAD: 'en-CA', | |
| CLP: 'es-CL', | |
| ARS: 'es-AR', | |
| COP: 'es-CO', | |
| EUR: 'de-DE' | |
| }; | |
| return locales[currency] || 'en-US'; | |
| } | |
| // Change language | |
| function changeLanguage() { | |
| currentLanguage = languageSelect.value; | |
| updateTranslations(); | |
| calculateLoan(); // Recalculate to update chart labels | |
| } | |
| // Update all translations | |
| function updateTranslations() { | |
| const lang = translations[currentLanguage]; | |
| for (const key in lang) { | |
| const element = document.getElementById(key); | |
| if (element) { | |
| element.textContent = lang[key]; | |
| } | |
| } | |
| // Update dark mode tooltip | |
| darkModeTooltip.textContent = lang.darkModeTooltip; | |
| } | |
| // Toggle dark mode | |
| function toggleDarkMode() { | |
| darkMode = !darkMode; | |
| document.body.classList.toggle('dark-mode', darkMode); | |
| // Update icon | |
| const icon = darkModeToggle.querySelector('i'); | |
| icon.classList.toggle('fa-moon', !darkMode); | |
| icon.classList.toggle('fa-sun', darkMode); | |
| // Recreate charts with dark mode colors | |
| if (amountInput.value) { | |
| calculateLoan(); | |
| } | |
| } | |
| // Export to Excel | |
| function exportToExcel() { | |
| const table = document.getElementById('amortizationTable'); | |
| const ws = XLSX.utils.table_to_sheet(table); | |
| const wb = XLSX.utils.book_new(); | |
| XLSX.utils.book_append_sheet(wb, ws, "Amortization"); | |
| const currency = currencySelect.value; | |
| const amount = amountInput.value || 0; | |
| const fileName = `Amortization_${currency}_${amount}.xlsx`; | |
| XLSX.writeFile(wb, fileName); | |
| } | |
| // Export to PDF | |
| function exportToPDF() { | |
| const { jsPDF } = window.jspdf; | |
| const doc = new jsPDF(); | |
| // Title | |
| const title = translations[currentLanguage].amortizationTitle; | |
| doc.setFontSize(18); | |
| doc.text(title, 14, 15); | |
| // Loan summary | |
| doc.setFontSize(12); | |
| doc.text(`${translations[currentLanguage].totalAmountLabel}: ${totalAmountEl.textContent}`, 14, 25); | |
| doc.text(`${translations[currentLanguage].downPaymentLabel}: ${downPaymentEl.textContent}`, 14, 32); | |
| doc.text(`${translations[currentLanguage].interestLabel}: ${interestEl.textContent}`, 14, 39); | |
| doc.text(`${translations[currentLanguage].totalPaymentLabel}: ${totalPaymentEl.textContent}`, 14, 46); | |
| // Table headers | |
| const headers = [ | |
| translations[currentLanguage].monthHeader, | |
| translations[currentLanguage].intermediatePaymentHeader, | |
| translations[currentLanguage].longTermPaymentHeader, | |
| translations[currentLanguage].remainingBalanceHeader | |
| ]; | |
| // Table data | |
| const tableData = []; | |
| const rows = amortizationBody.querySelectorAll('tr'); | |
| rows.forEach(row => { | |
| const rowData = []; | |
| row.querySelectorAll('td').forEach(cell => { | |
| rowData.push(cell.textContent); | |
| }); | |
| tableData.push(rowData); | |
| }); | |
| // Add table to PDF | |
| doc.autoTable({ | |
| head: [headers], | |
| body: tableData, | |
| startY: 55, | |
| styles: { | |
| fontSize: 8, | |
| cellPadding: 2 | |
| }, | |
| columnStyles: { | |
| 0: { cellWidth: 15 }, | |
| 1: { cellWidth: 40 }, | |
| 2: { cellWidth: 40 }, | |
| 3: { cellWidth: 40 } | |
| } | |
| }); | |
| // Save PDF | |
| const currency = currencySelect.value; | |
| const amount = amountInput.value || 0; | |
| doc.save(`Amortization_${currency}_${amount}.pdf`); | |
| } | |
| // Initialize the calculator when the page loads | |
| window.addEventListener('DOMContentLoaded', init); | |
| </script> | |
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| </html> |