{title='fishcoin currency converter'}
{favicon='/resources/fishcoin/fishcoin.png'}

<?php
$currencies = [
    'USD' => ['name' => 'US Dollar', 'rate' => 0],
    'EUR' => ['name' => 'Euro', 'rate' => 0],
    'GBP' => ['name' => 'British Pound', 'rate' => 0],
    'JPY' => ['name' => 'Japanese Yen', 'rate' => 0],
    'AUD' => ['name' => 'Australian Dollar', 'rate' => 0],
    'CAD' => ['name' => 'Canadian Dollar', 'rate' => 0],
    'CHF' => ['name' => 'Swiss Franc', 'rate' => 0],
    'CNY' => ['name' => 'Chinese Yuan', 'rate' => 0],
    'FSHC' => ['name' => 'Fish coin', 'rate' => 1],
    'PHP' => ['name' => 'Philippine Peso', 'rate' => 0.000000001],
    'SM64S' => ['name' => 'super mario 64 stars', 'rate' => 100000],
    'LIME' => ['name' => 'lime currency', 'rate' => 0],
];
$convertResult = 'enter an amount and click convert! <br><br> *convert any world currency to FSHC*';
if (($_SERVER['REQUEST_METHOD'] ?? '') === 'POST') {
    $amount = (string) ($_POST['amount'] ?? '');
    $code = (string) ($_POST['currency'] ?? 'USD');
    if ($amount === '') {
        $convertResult = '**notice:** please enter an amount to convert.';
    } elseif (!is_numeric($amount)) {
        $convertResult = '**error:** please enter a valid number.';
    } elseif (!isset($currencies[$code])) {
        $convertResult = '**error:** currency not supported. how did you do this';
    } else {
        $input = (float) $amount;
        $rate = $currencies[$code]['rate'];
        $fshc = (int) round($input * $rate);
        $convertResult = "**{$input} {$code}** converts to: ₣**{$fshc}**\n\n*exchange rate: 1 {$code} = {$rate} FSHC*";
    }
}
$selected = (string) ($_POST['currency'] ?? 'USD');
$amountVal = htmlspecialchars((string) ($_POST['amount'] ?? ''), ENT_QUOTES);
?>

# world currency to fishcoin converter

{columns}
{column='left', padding='12'}

<form method="POST">
<input type="number" id="amount" name="amount" step="0.01" min="0" placeholder="Enter amount" value="<?php echo $amountVal; ?>" required>
<select id="currency" name="currency">
<?php foreach ($currencies as $code => $info): ?>
<option value="<?php echo htmlspecialchars($code, ENT_QUOTES); ?>"<?php echo $code === $selected ? ' selected' : ''; ?>><?php echo htmlspecialchars($code . ' - ' . $info['name'], ENT_QUOTES); ?></option>
<?php endforeach; ?>
</select>
<br>
<button type="submit">convert</button>
</form>

{endcolumn}

{column='middle'}

<img width='69' src='/resources/arrow-right.png'>

{endcolumn}

{column='right', right-align}

<?php echo $convertResult; ?>

<img width='40' src='/resources/fishcoin/fishcoin-spin.gif'>

{endcolumn}

{endcolumns}