nexus/modules/kea/pages/groups.php

<?php
use App\Database;
use App\Repository\KeaHostMetadataRepository;
use App\Repository\KeaHostRepository;

$module = modules()->get('kea');
$settings = modules()->settings('kea');
$metadataFallback = is_array($module['metadata_db_defaults'] ?? null) ? $module['metadata_db_defaults'] : [];
$metadataConfig = is_array($settings['metadata_db'] ?? null)
    ? array_replace($metadataFallback, $settings['metadata_db'])
    : $metadataFallback;
$fallback = $module['db_defaults'] ?? [];
$error = null;
$notice = null;
$groups = [];
$availableIpsByGroup = [];
$usedIps = [];

try {
    if (empty($metadataConfig['driver']) || empty($metadataConfig['dbname'])) {
        throw new RuntimeException('Nexus DHCP Zusatzdatenbank ist nicht konfiguriert.');
    }

    $metadataRepo = new KeaHostMetadataRepository(Database::createFromArray($metadataConfig));
    $metadataRepo->ensureSchema();

    if ($_SERVER['REQUEST_METHOD'] === 'POST') {
        $action = (string)($_POST['action'] ?? '');
        if ($action === 'save_group') {
            $metadataRepo->saveGroup(
                (string)($_POST['name'] ?? ''),
                (string)($_POST['description'] ?? ''),
                (string)($_POST['parent_name'] ?? '')
            );
            $notice = 'Gruppe gespeichert.';
        } elseif ($action === 'add_range') {
            $metadataRepo->addRange(
                (string)($_POST['group_name'] ?? ''),
                (string)($_POST['start_ip'] ?? ''),
                (string)($_POST['end_ip'] ?? '')
            );
            $notice = 'IP-Bereich gespeichert.';
        }
    }

    $groups = $metadataRepo->listGroupsWithRanges();
    $keaRepo = new KeaHostRepository(modules()->modulePdo('kea', $fallback), $metadataRepo);
    $usedIps = array_merge($keaRepo->usedIpAddresses(), $metadataRepo->desiredIps());
    $availableIpsByGroup = $metadataRepo->availableIpsByGroup($usedIps, 4096);
} catch (Throwable $e) {
    $error = $e->getMessage();
}

$usedIpLookup = array_flip(array_filter(array_map('strval', $usedIps)));
$matrixForGroup = static function (array $group) use ($usedIpLookup): array {
    $dots = [];
    foreach (($group['ranges'] ?? []) as $range) {
        $start = ip2long((string)($range['start_ip'] ?? ''));
        $end = ip2long((string)($range['end_ip'] ?? ''));
        if ($start === false || $end === false) {
            continue;
        }
        for ($ip = $start; $ip <= $end && count($dots) < 512; $ip++) {
            $address = long2ip($ip);
            if ($address === false) {
                continue;
            }
            $dots[] = [
                'ip' => $address,
                'used' => isset($usedIpLookup[$address]),
            ];
        }
    }

    return $dots;
};
?>
<section class="kea-page">
  <div class="section-head">
    <div>
      <h2 class="section-title">KEA Gruppen</h2>
      <p>Gruppen und IP-Bereiche fuer DHCP-Reservierungen.</p>
    </div>
    <a class="nav-link" href="/module/kea">Zurueck</a>
  </div>

  <?php if ($error): ?>
    <div class="kea-message kea-message--error" role="alert">
      <strong>Fehler</strong>
      <p><?= e($error) ?></p>
    </div>
  <?php elseif ($notice): ?>
    <div class="kea-message kea-message--success"><?= e($notice) ?></div>
  <?php endif; ?>

  <div class="kea-panel">
    <div class="kea-panel__head">
      <div>
        <span class="pill">Gruppe</span>
        <h3>Gruppe anlegen</h3>
      </div>
    </div>
    <form method="post" class="kea-edit-form">
      <input type="hidden" name="action" value="save_group">
      <label class="setup-field">
        <span>Name</span>
        <input type="text" name="name" required>
      </label>
      <label class="setup-field">
        <span>Beschreibung</span>
        <input type="text" name="description">
      </label>
      <label class="setup-field">
        <span>Uebergeordnete Gruppe</span>
        <select name="parent_name">
          <option value="">Keine</option>
          <?php foreach ($groups as $group): ?>
            <option value="<?= e((string)$group['name']) ?>"><?= e((string)$group['name']) ?></option>
          <?php endforeach; ?>
        </select>
      </label>
      <div class="setup-actions kea-edit-form__wide">
        <button class="cta-button" type="submit">Gruppe speichern</button>
      </div>
    </form>
  </div>

  <div class="kea-panel">
    <div class="kea-panel__head">
      <div>
        <span class="pill">IP-Bereich</span>
        <h3>Bereich zuweisen</h3>
      </div>
    </div>
    <form method="post" class="kea-edit-form">
      <input type="hidden" name="action" value="add_range">
      <label class="setup-field">
        <span>Gruppe</span>
        <select name="group_name" required>
          <option value="">Bitte waehlen</option>
          <?php foreach ($groups as $group): ?>
            <option value="<?= e((string)$group['name']) ?>"><?= e((string)$group['name']) ?></option>
          <?php endforeach; ?>
        </select>
      </label>
      <label class="setup-field">
        <span>Start-IP</span>
        <input type="text" name="start_ip" placeholder="192.168.178.50" required>
      </label>
      <label class="setup-field">
        <span>End-IP</span>
        <input type="text" name="end_ip" placeholder="192.168.178.99" required>
      </label>
      <div class="setup-actions kea-edit-form__wide">
        <button class="cta-button" type="submit">Bereich speichern</button>
      </div>
    </form>
  </div>

  <div class="kea-panel">
    <div class="kea-panel__head">
      <div>
        <span class="pill">Uebersicht</span>
        <h3>Gruppen und freie IPs</h3>
      </div>
    </div>
    <div class="kea-table-wrap">
      <table class="kea-table">
        <thead>
          <tr>
            <th>Gruppe</th>
            <th>Untergruppe von</th>
            <th>Beschreibung</th>
            <th>Bereiche</th>
            <th>Freie IPs</th>
            <th>Matrix</th>
          </tr>
        </thead>
        <tbody>
          <?php if ($groups === []): ?>
            <tr><td colspan="6" class="kea-empty">Noch keine Gruppen definiert.</td></tr>
          <?php else: ?>
            <?php foreach ($groups as $group): ?>
              <?php $available = $availableIpsByGroup[(string)$group['name']] ?? []; ?>
              <tr>
                <td><?= e((string)$group['name']) ?></td>
                <td><?= e((string)($group['parent_name'] ?: '-')) ?></td>
                <td><?= e((string)($group['description'] ?? '-')) ?></td>
                <td>
                  <?php if (($group['ranges'] ?? []) === []): ?>
                    <span class="muted">Kein Bereich</span>
                  <?php else: ?>
                    <?php foreach ($group['ranges'] as $range): ?>
                      <div class="mono"><?= e((string)$range['start_ip']) ?> - <?= e((string)$range['end_ip']) ?></div>
                    <?php endforeach; ?>
                  <?php endif; ?>
                </td>
                <td><?= e((string)count($available)) ?></td>
                <td>
                  <?php $matrix = $matrixForGroup($group); ?>
                  <?php if ($matrix === []): ?>
                    <span class="muted">Kein Bereich</span>
                  <?php else: ?>
                    <div class="ip-matrix" aria-label="IP Matrix fuer <?= e((string)$group['name']) ?>">
                      <?php foreach ($matrix as $dot): ?>
                        <span
                          class="ip-dot <?= $dot['used'] ? 'is-used' : 'is-free' ?>"
                          title="<?= e((string)$dot['ip']) ?> · <?= $dot['used'] ? 'belegt' : 'frei' ?>"
                        ></span>
                      <?php endforeach; ?>
                    </div>
                  <?php endif; ?>
                </td>
              </tr>
            <?php endforeach; ?>
          <?php endif; ?>
        </tbody>
      </table>
    </div>
  </div>
</section>