// Mengambil elemen-elemen dari DOM
const amountInput = document.getElementById("amount");
const fromCurrency = document.getElementById("from");
const toCurrency = document.getElementById("to");
const convertButton = document.getElementById("convert-btn");
const swapButton = document.getElementById("swap-btn");
const result = document.getElementById("result");

// Data kurs mata uang (contoh)
const exchangeRates = {
    "USD": { "EUR": 0.85, "IDR": 14200, "GBP": 0.75, "MYR": 4.20 },
    "EUR": { "USD": 1.18, "IDR": 16750, "GBP": 0.88, "MYR": 4.94 },
    "IDR": { "USD": 0.000070, "EUR": 0.000060, "GBP": 0.000053, "MYR": 0.00025 },
    "GBP": { "USD": 1.33, "EUR": 1.14, "IDR": 18850, "MYR": 5.60 },
    "MYR": { "USD": 0.24, "EUR": 0.20, "IDR": 3700, "GBP": 0.18 }
};

// Fungsi untuk menghitung konversi mata uang
function convertCurrency() {
    const amount = parseFloat(amountInput.value);
    const from = fromCurrency.value;
    const to = toCurrency.value;

    if (isNaN(amount) || amount <= 0) {
        result.textContent = "Please enter a valid amount.";
        return;
    }

    const rate = exchangeRates[from][to];
    if (rate) {
        const convertedAmount = (amount * rate).toFixed(2);
        result.textContent = `${amount} ${from} = ${convertedAmount} ${to}`;
    } else {
        result.textContent = "Conversion rate not available.";
    }
}

// Fungsi untuk menukar mata uang
function swapCurrencies() {
    const temp = fromCurrency.value;
    fromCurrency.value = toCurrency.value;
    toCurrency.value = temp;
    convertCurrency();  // Setelah swap, langsung hitung konversinya
}

// Event listener untuk tombol Convert
convertButton.addEventListener("click", convertCurrency);

// Event listener untuk tombol Swap
swapButton.addEventListener("click", swapCurrencies);

// Optionally, bisa tambahkan fitur untuk menghitung otomatis ketika ada perubahan input
amountInput.addEventListener("input", convertCurrency);
fromCurrency.addEventListener("change", convertCurrency);
toCurrency.addEventListener("change", convertCurrency);