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Improve Loan Calculator & Loan Summary Display #164

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merged 1 commit into from
Oct 9, 2024
Merged

Improve Loan Calculator & Loan Summary Display #164

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28 changes: 16 additions & 12 deletions frontend/src/pages/Loan/Loan.css
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Original file line number Diff line number Diff line change
Expand Up @@ -92,34 +92,38 @@
}

.loan-calculator {
margin-top: 40px;
margin-top: 2rem;
background-color: #ffffff;
border-radius: 8px;
padding: 25px;
border-radius: var(--border-radius);
padding: 2rem;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.calculator-form {
display: flex;
flex-direction: column; /* Stack inputs vertically */
display: grid;
gap: 1rem;
}

.calculator-form label {
margin-bottom: 15px;
display: flex;
flex-direction: column;
font-size: 1rem;
color: var(--text-color);
}

.calculator-form input {
padding: 10px;
.calculator-form input,
.calculator-form select {
padding: 0.75rem;
border: 1px solid #ccc;
border-radius: 5px;
border-radius: var(--border-radius);
font-size: 1rem;
margin-top: 0.5rem;
}

.calculator-result {
margin-top: 20px;
font-size: 1.5rem;
color: #2B4B77;
margin-top: 1.5rem;
font-size: 1.2rem;
color: var(--primary-color);
}

/* Media Queries for Responsiveness */
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65 changes: 50 additions & 15 deletions frontend/src/pages/Loan/Loan.js
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Original file line number Diff line number Diff line change
@@ -1,18 +1,32 @@
// src/LoanPage.js
import React, { useState } from 'react';
import './Loan.css'; // Import your custom CSS file

const Loan = () => {
const [loanAmount, setLoanAmount] = useState('');
const [interestRate, setInterestRate] = useState('');
const [loanTerm, setLoanTerm] = useState('');
const [totalPayment, setTotalPayment] = useState(null);
const [paymentFrequency, setPaymentFrequency] = useState('monthly');
const [calculationResult, setCalculationResult] = useState(null);

const calculateTotalPayment = () => {
const calculateLoan = () => {
const principal = parseFloat(loanAmount);
const calculatedInterest = (principal * (parseFloat(interestRate) / 100)) * parseFloat(loanTerm);
const total = principal + calculatedInterest;
setTotalPayment(total.toFixed(2));
const rate = parseFloat(interestRate) / 100 / 12;
const termInMonths = parseFloat(loanTerm) * 12;

if (isNaN(principal) || isNaN(rate) || isNaN(termInMonths)) {
alert('Please enter valid numbers for all fields.');
return;
}

const monthlyPayment = (principal * rate * Math.pow(1 + rate, termInMonths)) / (Math.pow(1 + rate, termInMonths) - 1);
const totalPayment = monthlyPayment * termInMonths;
const totalInterest = totalPayment - principal;

setCalculationResult({
monthlyPayment: monthlyPayment.toFixed(2),
totalPayment: totalPayment.toFixed(2),
totalInterest: totalInterest.toFixed(2)
});
};

return (
Expand Down Expand Up @@ -68,39 +82,60 @@ const Loan = () => {

<section className="loan-calculator">
<h2>Loan Calculator</h2>
<div className="calculator-form">
<label>
<form className="calculator-form" onSubmit={(e) => e.preventDefault()}>
<label htmlFor="loanAmount">
Loan Amount:
<input
id="loanAmount"
type="number"
value={loanAmount}
onChange={(e) => setLoanAmount(e.target.value)}
placeholder="Enter amount"
required
/>
</label>
<label>
Interest Rate (%):
<label htmlFor="interestRate">
Annual Interest Rate (%):
<input
id="interestRate"
type="number"
value={interestRate}
onChange={(e) => setInterestRate(e.target.value)}
placeholder="Enter rate"
required
/>
</label>
<label>
<label htmlFor="loanTerm">
Loan Term (years):
<input
id="loanTerm"
type="number"
value={loanTerm}
onChange={(e) => setLoanTerm(e.target.value)}
placeholder="Enter term"
required
/>
</label>
<button onClick={calculateTotalPayment} className="loan-button">Calculate</button>
</div>
{totalPayment && (
<label htmlFor="paymentFrequency">
Payment Frequency:
<select
id="paymentFrequency"
value={paymentFrequency}
onChange={(e) => setPaymentFrequency(e.target.value)}
>
<option value="monthly">Monthly</option>
<option value="biweekly">Bi-weekly</option>
<option value="weekly">Weekly</option>
</select>
</label>
<button onClick={calculateLoan} className="loan-button">Calculate</button>
</form>
{calculationResult && (
<div className="calculator-result">
<h3>Total Amount to be Paid: ${totalPayment}</h3>
<h3>Loan Summary:</h3>
<p>Monthly Payment: ${calculationResult.monthlyPayment}</p>
<p>Total Payment: ${calculationResult.totalPayment}</p>
<p>Total Interest: ${calculationResult.totalInterest}</p>
</div>
)}
</section>
Expand Down