nexus/modules/fx-rates/pages/index.php

<?php
declare(strict_types=1);

require_once dirname(__DIR__) . '/bootstrap.php';

$assets = app()->assets();
if ($assets) {
    $assets->addStyle('/module/fx-rates/asset?file=fx-rates.css');
    $assets->addScript('/module/fx-rates/asset?file=fx-rates.js', 'footer', true);
}

$settings = module_fn('fx-rates', 'settings');
$service = module_fn('fx-rates', 'service');
$preferredCurrencies = is_array($settings['preferred_currencies'] ?? null) ? $settings['preferred_currencies'] : [];
$notice = trim((string) ($_GET['notice'] ?? ''));
$error = trim((string) ($_GET['error'] ?? ''));

if ((string) ($_GET['refresh'] ?? '') === '1') {
    try {
        $result = $service->refreshLatestRates(null, (string) ($settings['default_base_currency'] ?? ''));
        $params = [
            'notice' => sprintf(
                'Aktuelle Kurse gespeichert. %d Werte aktualisiert.',
                (int) ($result['updated_count'] ?? 0)
            ),
        ];
    } catch (\Throwable $exception) {
        $params = ['error' => $exception->getMessage() !== '' ? $exception->getMessage() : 'Kurse konnten nicht aktualisiert werden.'];
    }

    redirect('/module/fx-rates?' . http_build_query($params));
}

$latest = $service->latestStatus();
$recentFetches = $service->recentFetches(12);
$pageData = json_encode([
    'settings' => $settings,
    'latest' => $latest,
    'preferred_currencies' => $preferredCurrencies,
    'recent_fetches' => $recentFetches,
], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
?>
<?= module_shell_header('fx-rates', [
    'title' => 'Waehrungskurse',
    'actions' => [
        ['label' => 'Setup', 'href' => '/modules/setup/fx-rates', 'variant' => 'secondary', 'size' => 'sm'],
        ['label' => 'Aktuelle Kurse abrufen', 'href' => '/module/fx-rates?refresh=1', 'variant' => 'secondary', 'size' => 'sm'],
    ],
]) ?>
<div id="fx-rates-app" data-page='<?= e(is_string($pageData) ? $pageData : '{}') ?>'>
  <div class="fx-stack">
    <div class="fx-card">
      <?php if ($notice !== ''): ?>
        <div class="fx-message is-success"><?= e($notice) ?></div>
      <?php elseif ($error !== ''): ?>
        <div class="fx-message is-error"><?= e($error) ?></div>
      <?php endif; ?>

      <h2>Umrechnung</h2>
      <p>Umrechnung auf Basis des letzten verfuegbaren Kurses zwischen den bevorzugten Waehrungen.</p>
      <div class="fx-form-grid">
        <label>
          <span>Quellwaehrung</span>
          <select name="convert_from">
            <?php foreach ($preferredCurrencies as $currency): ?>
              <option value="<?= e((string) $currency) ?>"><?= e((string) $currency) ?></option>
            <?php endforeach; ?>
          </select>
        </label>
        <label>
          <span>Zielwaehrung</span>
          <select name="convert_to">
            <?php foreach ($preferredCurrencies as $currency): ?>
              <option value="<?= e((string) $currency) ?>" <?= (string) $currency === (string) ($preferredCurrencies[1] ?? $preferredCurrencies[0] ?? '') ? 'selected' : '' ?>><?= e((string) $currency) ?></option>
            <?php endforeach; ?>
          </select>
        </label>
        <label>
          <span>Betrag</span>
          <input type="number" name="convert_amount" min="0" step="0.00000001" value="1">
        </label>
      </div>
      <div class="fx-convert-result" data-bind="convert-result">Noch keine Umrechnung berechnet.</div>
    </div>

    <div class="fx-card">
      <div class="fx-card-head">
        <div>
          <h2>Letzte Kurse</h2>
          <p>Letzter gespeicherter Snapshot, umgerechnet auf <?= e((string) ($settings['display_base_currency'] ?? $settings['default_base_currency'] ?? 'EUR')) ?>.</p>
        </div>
        <div class="fx-card-meta">
          <div><strong>Letzter Abruf:</strong> <?= e((string) ($latest['fetched_at_display'] ?? $latest['fetched_at'] ?? 'noch keiner')) ?></div>
          <div><strong>Anzeige-Basis:</strong> <?= e((string) ($settings['display_base_currency'] ?? $settings['default_base_currency'] ?? '')) ?></div>
          <div><strong>Snapshot-Basis:</strong> <?= e((string) ($latest['base_currency'] ?? '')) ?></div>
        </div>
      </div>
      <div class="fx-table-wrap">
        <table class="fx-table">
          <thead>
            <tr>
              <th>Waehrung</th>
              <th>Kurs</th>
            </tr>
          </thead>
          <tbody data-bind="rates-body">
            <tr><td colspan="2">Noch keine Daten geladen.</td></tr>
          </tbody>
        </table>
      </div>
    </div>

    <div class="fx-card">
      <h2>Kursverlauf</h2>
      <p>Chronologischer Verlauf der bevorzugten Waehrungen relativ zur Anzeige-Basiswaehrung.</p>
      <div class="fx-table-wrap">
        <table class="fx-table">
          <thead data-bind="history-head">
            <tr>
              <th>Datum</th>
              <th>Kurse</th>
            </tr>
          </thead>
          <tbody data-bind="history-body">
            <tr><td colspan="2">Noch keine Verlaufsdaten geladen.</td></tr>
          </tbody>
        </table>
      </div>
    </div>

    <div class="fx-card">
      <h2>Letzte Abrufe</h2>
      <div class="fx-table-wrap">
        <table class="fx-table">
          <thead>
            <tr>
              <th>Datum</th>
              <th>Basis</th>
              <th>Provider</th>
            </tr>
          </thead>
          <tbody data-bind="fetches-body">
            <?php if ($recentFetches === []): ?>
              <tr><td colspan="3">Noch keine Abrufe vorhanden.</td></tr>
            <?php else: ?>
              <?php foreach ($recentFetches as $fetch): ?>
                <tr>
                  <td><?= e((string) ($fetch['fetched_at_display'] ?? $fetch['fetched_at'] ?? '')) ?></td>
                  <td><?= e((string) ($fetch['base_currency'] ?? '')) ?></td>
                  <td><?= e((string) ($fetch['provider'] ?? '')) ?></td>
                </tr>
              <?php endforeach; ?>
            <?php endif; ?>
          </tbody>
        </table>
      </div>
    </div>
  </div>
</div>
<?= module_shell_footer() ?>