nexus/partials/landingpages/modules/setup.php

<?php
$moduleName = (string)($_GET['module'] ?? '');
$module = modules()->get($moduleName);
$error = null;
$notice = null;

require_admin();

if (!$module) {
    http_response_code(404);
    echo '<div class="card">Modul nicht gefunden.</div>';
    return;
}

$fields = (array)($module['setup']['fields'] ?? []);
$fieldTypes = [];
$fieldMeta = [];
foreach ($fields as $field) {
    $fname = (string)($field['name'] ?? '');
    if ($fname === '') {
        continue;
    }
    $fieldTypes[$fname] = (string)($field['type'] ?? 'text');
    $fieldMeta[$fname] = $field;
}
$current = modules()->settings($moduleName);
$defaults = $module['db_defaults'] ?? [];
if (empty($current['db']) && is_array($defaults)) {
    $current['db'] = $defaults;
}
$metadataDefaults = $module['metadata_db_defaults'] ?? [];
if (empty($current['metadata_db']) && is_array($metadataDefaults)) {
    $current['metadata_db'] = $metadataDefaults;
}

$setNested = function (array &$target, string $path, mixed $value): void {
    $parts = explode('.', $path);
    $last = array_pop($parts);
    $node = &$target;
    foreach ($parts as $part) {
        if (!isset($node[$part]) || !is_array($node[$part])) {
            $node[$part] = [];
        }
        $node = &$node[$part];
    }
    if ($last !== null && $last !== '') {
        $node[$last] = $value;
    }
};

$getNested = function (array $source, string $path): mixed {
    $node = $source;
    foreach (explode('.', $path) as $part) {
        if (!is_array($node) || !array_key_exists($part, $node)) {
            return null;
        }
        $node = $node[$part];
    }
    return $node;
};

$dbGroups = [];
foreach ($fields as $field) {
    $name = (string)($field['name'] ?? '');
    if (!str_contains($name, '.')) {
        continue;
    }

    [$group, $key] = explode('.', $name, 2);
    if ($key !== 'driver') {
        continue;
    }

    $label = (string)($field['label'] ?? $group);
    $label = trim(preg_replace('/\s+DB\s+Driver$/i', ' DB', $label) ?? $label);
    $label = $label !== '' ? $label : $group;
    $dbGroups[$group] = $label;
}

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $payload = [];

    foreach ($fields as $field) {
        $name = (string)($field['name'] ?? '');
        if ($name === '') {
            continue;
        }
        $type = (string)($field['type'] ?? 'text');
        $postKey = str_replace('.', '_', $name);
        $value = $_POST[$postKey] ?? null;

        if ($type === 'checkbox') {
            $value = isset($_POST[$postKey]) ? '1' : '0';
        }
        if (is_array($value)) {
            continue;
        }
        $value = is_string($value) ? trim($value) : $value;

        if ($name === 'kea_auto_init') {
            $payload[$name] = $value === '1';
            continue;
        }

        if (str_contains($name, '.')) {
            $setNested($payload, $name, $value);
            continue;
        }

        $payload[$name] = $value;
    }

    $current = array_replace_recursive($current, $payload);

    $testGroup = (string)($_POST['test_db'] ?? '');
    if ($testGroup !== '') {
        if (!array_key_exists($testGroup, $dbGroups)) {
            $error = 'Unbekannte Datenbank-Konfiguration.';
        } else {
            $dbConfig = $getNested($current, $testGroup);
            if (!is_array($dbConfig)) {
                $error = 'Datenbank-Konfiguration ist unvollstaendig.';
            } else {
                try {
                    $dbConfig['options'] = array_replace([
                        \PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION,
                        \PDO::ATTR_DEFAULT_FETCH_MODE => \PDO::FETCH_ASSOC,
                    ], (array)($dbConfig['options'] ?? []));

                    $testPdo = \App\Database::createFromArray($dbConfig);
                    $testPdo->query('SELECT 1')->fetchColumn();
                    $notice = $dbGroups[$testGroup] . ': Verbindung erfolgreich.';
                } catch (\Throwable $e) {
                    $error = $dbGroups[$testGroup] . ': Verbindung fehlgeschlagen. ' . $e->getMessage();
                }
            }
        }
    } else {
        modules()->saveSettings($moduleName, $payload);
        $notice = 'Setup gespeichert.';
        $module = modules()->get($moduleName) ?: $module;
    }
}
?>
<div class="card">
  <div class="pill">Setup</div>
  <h1 style="margin-top:.75rem;"><?= e($module['title']) ?> – Einrichtung</h1>
  <p class="muted">Trage die benötigten Informationen für das Modul ein.</p>

  <?php if ($error): ?>
    <div class="bg-red-900 border-l-4 border-red-500 text-red-100 p-4 mb-6" role="alert">
      <?= e($error) ?>
    </div>
  <?php elseif ($notice): ?>
    <div class="card" style="margin-top:1rem; border-color:var(--accent-2);">
      <?= e($notice) ?>
    </div>
  <?php endif; ?>

  <form method="post" style="margin-top:1rem; display:grid; gap:14px; max-width:520px;">
    <?php foreach ($fields as $field): ?>
      <?php
        $name = (string)($field['name'] ?? '');
        $label = (string)($field['label'] ?? $name);
        $type = (string)($field['type'] ?? 'text');
        $required = !empty($field['required']);
        $help = (string)($field['help'] ?? $field['description'] ?? '');
        $postKey = str_replace('.', '_', $name);

        $value = '';
        if ($name === 'kea_auto_init') {
            $value = !empty($current[$name]) ? '1' : '0';
        } elseif (str_contains($name, '.')) {
            $value = (string)($getNested($current, $name) ?? '');
        } else {
            $value = (string)($current[$name] ?? '');
        }
      ?>
      <label class="muted" style="display:grid; gap:6px;">
        <span><?= e($label) ?></span>
        <?php if ($type === 'textarea'): ?>
          <textarea name="<?= e($postKey) ?>" rows="3" <?= $required ? 'required' : '' ?>><?= e($value) ?></textarea>
        <?php elseif ($type === 'checkbox'): ?>
          <input type="checkbox" name="<?= e($postKey) ?>" value="1" <?= $value === '1' ? 'checked' : '' ?>>
        <?php else: ?>
          <input type="<?= e($type) ?>" name="<?= e($postKey) ?>" value="<?= e($value) ?>" <?= $required ? 'required' : '' ?>>
        <?php endif; ?>
        <?php if ($help !== ''): ?>
          <small class="muted"><?= e($help) ?></small>
        <?php endif; ?>
      </label>
    <?php endforeach; ?>

    <?php if ($dbGroups !== []): ?>
      <div class="card" style="padding:14px; background:var(--panel-2); display:grid; gap:10px;">
        <strong>Datenbankverbindungen testen</strong>
        <small class="muted">Der Test nutzt die aktuell eingetragenen Werte aus diesem Formular und speichert sie nicht.</small>
        <div style="display:flex; gap:10px; flex-wrap:wrap;">
          <?php foreach ($dbGroups as $group => $label): ?>
            <button class="nav-link" type="submit" name="test_db" value="<?= e($group) ?>" formnovalidate>
              <?= e($label) ?> testen
            </button>
          <?php endforeach; ?>
        </div>
      </div>
    <?php endif; ?>

    <div style="display:flex; gap:10px;">
      <button class="cta-button" type="submit">Speichern</button>
      <a class="nav-link" href="/modules/access/<?= e($moduleName) ?>">Zugriff verwalten</a>
      <a class="nav-link" href="/modules">Zurück</a>
    </div>
  </form>
</div>