manager/admin/instances.php

<?php

declare(strict_types=1);

require_once __DIR__ . "/../includes/auth.php";
require_once __DIR__ . "/../includes/layout.php";
require_once __DIR__ . "/../includes/instances.php";

manageRequireLogin();

$messages = [];
$errors = [];

// Plaintext token to display once after create/rotate. Never persisted.
$newToken = null;
$newTokenInstance = "";

if (($_SERVER["REQUEST_METHOD"] ?? "") === "POST") {
    try {
        manageRequireCsrf();
        $action = (string) ($_POST["action"] ?? "");
        $id = trim((string) ($_POST["instance"] ?? ""));

        if ($action === "create") {
            $created = manageInstanceCreate(
                trim((string) ($_POST["new_instance"] ?? "")),
                trim((string) ($_POST["label"] ?? "")),
                trim((string) ($_POST["notes"] ?? "")),
            );
            $newToken = $created["token"];
            $newTokenInstance = $created["instance"]["id"];
            $messages[] = "Instanz \"" . $created["instance"]["id"] . "\" wurde angelegt.";
        } elseif ($action === "rotate") {
            $newToken = manageInstanceRotateToken($id);
            $newTokenInstance = $id;
            $messages[] = "Neues Token für \"" . $id . "\" erzeugt. Das alte Token ist ab sofort ungültig.";
        } elseif ($action === "toggle") {
            $instance = manageInstanceFind($id);
            if ($instance === null) {
                throw new RuntimeException("Instanz wurde nicht gefunden.");
            }
            manageInstanceUpdate($id, ["enabled" => !$instance["enabled"]]);
            $messages[] = $instance["enabled"]
                ? "Instanz \"" . $id . "\" wurde deaktiviert."
                : "Instanz \"" . $id . "\" wurde aktiviert.";
        } elseif ($action === "save") {
            manageInstanceUpdate($id, [
                "label" => trim((string) ($_POST["label"] ?? "")),
                "notes" => trim((string) ($_POST["notes"] ?? "")),
            ]);
            $messages[] = "Instanz \"" . $id . "\" wurde gespeichert.";
        } elseif ($action === "delete") {
            manageInstanceDelete($id);
            $messages[] = "Instanz \"" . $id . "\" wurde entfernt. Vorhandene Backups bleiben erhalten.";
        }
    } catch (Throwable $exception) {
        $errors[] = $exception->getMessage();
    }
}

try {
    $instances = manageInstanceList();
} catch (Throwable $exception) {
    $instances = [];
    $errors[] = $exception->getMessage();
}

manageRenderHeader("Instanzen", $messages, $errors);
?>

<?php if ($newToken !== null): ?>
    <div class="token-box">
        <p><strong>Token für <?php echo manageEscape($newTokenInstance); ?></strong></p>
        <p class="muted">Dieses Token wird nur jetzt angezeigt. Der Server speichert lediglich einen Hash davon.</p>
        <pre class="token-value"><?php echo manageEscape($newToken); ?></pre>
        <p>In die <code>config.php</code> des Clients eintragen:</p>
        <pre class="code-block">define("MANAGE_SERVER_URL", "<?php echo manageEscape(rtrim((string) MANAGE_PUBLIC_URL, "/")); ?>");
define("MANAGE_INSTANCE",   "<?php echo manageEscape($newTokenInstance); ?>");
define("MANAGE_TOKEN",      "<?php echo manageEscape($newToken); ?>");</pre>
    </div>
<?php endif; ?>

<h2>Neue Instanz</h2>
<form method="POST" class="panel">
    <?php echo manageCsrfField(); ?>
    <input type="hidden" name="action" value="create">
    <div class="form-row">
        <div class="form-group">
            <label for="new_instance">Kennung</label>
            <input type="text" id="new_instance" name="new_instance" required
                   pattern="[A-Za-z0-9][A-Za-z0-9._\-]*" maxlength="120" placeholder="psa-prod">
            <p class="hint">Buchstaben, Zahlen, Punkt, Unterstrich, Bindestrich.</p>
        </div>
        <div class="form-group">
            <label for="label">Bezeichnung</label>
            <input type="text" id="label" name="label" maxlength="200" placeholder="Stadt Freising Produktiv">
        </div>
    </div>
    <div class="form-group">
        <label for="notes">Notiz</label>
        <input type="text" id="notes" name="notes" maxlength="500">
    </div>
    <button type="submit" class="btn">Instanz anlegen</button>
</form>

<h2>Registrierte Instanzen</h2>

<?php if ($instances === []): ?>
    <p class="empty">Noch keine Instanz registriert.</p>
<?php else: ?>
    <?php foreach ($instances as $instance): ?>
        <section class="panel" id="<?php echo manageEscape($instance["id"]); ?>">
            <div class="panel-head">
                <h3><?php echo manageEscape($instance["id"]); ?></h3>
                <?php if ($instance["enabled"]): ?>
                    <span class="badge badge-ok">aktiv</span>
                <?php else: ?>
                    <span class="badge badge-error">deaktiviert</span>
                <?php endif; ?>
            </div>

            <dl class="meta-list">
                <div><dt>Version</dt><dd><?php echo manageEscape($instance["version"] !== "" ? $instance["version"] : "–"); ?></dd></div>
                <div><dt>PHP</dt><dd><?php echo manageEscape($instance["php_version"] !== "" ? $instance["php_version"] : "–"); ?></dd></div>
                <div><dt>Zuletzt gesehen</dt><dd><?php echo manageEscape($instance["last_seen_at"] !== "" ? $instance["last_seen_at"] : "nie"); ?></dd></div>
                <div><dt>Letzte IP</dt><dd><?php echo manageEscape($instance["last_ip"] !== "" ? $instance["last_ip"] : "–"); ?></dd></div>
                <div><dt>Letztes Backup</dt><dd><?php echo manageEscape($instance["last_backup_at"] !== "" ? $instance["last_backup_at"] : "nie"); ?></dd></div>
                <div><dt>Backups</dt><dd><?php echo (int) $instance["backup_count"]; ?></dd></div>
                <div><dt>Offene Migrationen</dt><dd><?php echo (int) $instance["pending_migrations"]; ?></dd></div>
                <div><dt>Token erneuert</dt><dd><?php echo manageEscape($instance["token_rotated_at"] !== "" ? $instance["token_rotated_at"] : "–"); ?></dd></div>
                <div><dt>Freier Speicher</dt><dd><?php echo $instance["disk_free"] > 0 ? manageEscape(manageFormatBytes($instance["disk_free"])) : "–"; ?></dd></div>
            </dl>

            <form method="POST" class="inline-form">
                <?php echo manageCsrfField(); ?>
                <input type="hidden" name="action" value="save">
                <input type="hidden" name="instance" value="<?php echo manageEscape($instance["id"]); ?>">
                <div class="form-row">
                    <div class="form-group">
                        <label>Bezeichnung
                            <input type="text" name="label" maxlength="200" value="<?php echo manageEscape($instance["label"]); ?>">
                        </label>
                    </div>
                    <div class="form-group">
                        <label>Notiz
                            <input type="text" name="notes" maxlength="500" value="<?php echo manageEscape($instance["notes"]); ?>">
                        </label>
                    </div>
                </div>
                <button type="submit" class="btn btn-secondary">Speichern</button>
            </form>

            <div class="button-row">
                <form method="POST" onsubmit="return confirm('Neues Token erzeugen? Das alte Token wird sofort ungültig.');">
                    <?php echo manageCsrfField(); ?>
                    <input type="hidden" name="action" value="rotate">
                    <input type="hidden" name="instance" value="<?php echo manageEscape($instance["id"]); ?>">
                    <button type="submit" class="btn btn-secondary">Token erneuern</button>
                </form>
                <form method="POST">
                    <?php echo manageCsrfField(); ?>
                    <input type="hidden" name="action" value="toggle">
                    <input type="hidden" name="instance" value="<?php echo manageEscape($instance["id"]); ?>">
                    <button type="submit" class="btn btn-secondary">
                        <?php echo $instance["enabled"] ? "Deaktivieren" : "Aktivieren"; ?>
                    </button>
                </form>
                <form method="POST" onsubmit="return confirm('Instanz wirklich entfernen? Backups bleiben erhalten.');">
                    <?php echo manageCsrfField(); ?>
                    <input type="hidden" name="action" value="delete">
                    <input type="hidden" name="instance" value="<?php echo manageEscape($instance["id"]); ?>">
                    <button type="submit" class="btn btn-danger">Entfernen</button>
                </form>
            </div>
        </section>
    <?php endforeach; ?>
<?php endif; ?>

<?php manageRenderFooter(); ?>