// Fungsi untuk menangani submit form
document.getElementById('currencyForm').addEventListener('submit', async function (event) {
  event.preventDefault();

  const amount = document.getElementById('amount').value;
  const fromCurrency = document.getElementById('fromCurrency').value;
  const toCurrency = document.getElementById('toCurrency').value;
  const resultDiv = document.getElementById('result');

  // Validasi input amount
  if (!amount || amount <= 0) {
    resultDiv.innerHTML = "Please enter a valid amount!";
    return;
  }

  await convertCurrency(amount, fromCurrency, toCurrency, resultDiv);
});

// Fungsi untuk menangani tombol swap
document.getElementById('swapButton').addEventListener('click', async function () {
  const fromCurrency = document.getElementById('fromCurrency');
  const toCurrency = document.getElementById('toCurrency');
  const resultDiv = document.getElementById('result');

  // Tukar mata uang
  const tempCurrency = fromCurrency.value;
  fromCurrency.value = toCurrency.value;
  toCurrency.value = tempCurrency;

  // Ambil nilai amount
  const amount = document.getElementById('amount').value;

  if (amount && amount > 0) {
    await convertCurrency(amount, fromCurrency.value, toCurrency.value, resultDiv);
  } else {
    resultDiv.innerHTML = "";
  }
});

// Fungsi konversi mata uang
async function convertCurrency(amount, fromCurrency, toCurrency, resultDiv) {
  try {
    const apiKey = '3ebe2ccf9eeea2aaef280201';
    const url = `https://v6.exchangerate-api.com/v6/${apiKey}/latest/${fromCurrency}`;

    // Fetch data dari API
    const response = await fetch(url);
    const data = await response.json();

    if (data.result === 'success') {
      const rate = data.conversion_rates[toCurrency];
      const convertedAmount = (amount * rate).toFixed(2);
      resultDiv.innerHTML = `${amount} ${fromCurrency} = ${convertedAmount} ${toCurrency}`;
    } else {
      resultDiv.innerHTML = `Error: ${data['error-type']}`;
    }
  } catch (error) {
    resultDiv.innerHTML = "Error fetching conversion rate.";
    console.error("Error:", error);
  }
}