<?php
declare(strict_types=1);

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

if (TaskCertRequest::method() !== 'GET') {
    TaskCertResponse::error('Methode nicht erlaubt', 405, false);
}

$auth = TaskCertAuthContext::fromGlobals();
if (!$auth->hasPermission('r-task-cert-admin')) {
    TaskCertResponse::error('Keine Berechtigung', 403, false);
}

$csrfToken = TaskCertRequest::queryString('csrf_token', '');
if (!TaskCertCsrf::validate($csrfToken)) {
    TaskCertResponse::error('CSRF validation failed', 419, false);
}

$taskId = TaskCertRequest::queryInt('id', 0);
if ($taskId <= 0) {
    TaskCertResponse::error('Ungültige Aufgaben-ID.', 400, false);
}

$services = task_cert_services();
$task = $services['definitionRepo']->findById($taskId);
if ($task === null) {
    TaskCertResponse::error('Aufgabe nicht gefunden.', 404, false);
}

// Aktive Methoden (mit Feld-/Quiz-/Beitragskonfiguration) laden — analog zur
// echten User-Detailseite (actions/user/task_detail_action.php).
$methods = $services['ruleRepo']->getMethodsByTask($taskId);
$methods = array_values(array_filter($methods, static function (array $method): bool {
    return (int) ($method['active'] ?? 1) === 1;
}));

// Beitragstitel für knowledge_read-Methoden auflösen.
$postIds = [];
foreach ($methods as $method) {
    if ((string) ($method['method_type'] ?? '') !== 'knowledge_read') {
        continue;
    }
    foreach ((array) ($method['knowledge_posts'] ?? []) as $post) {
        $postId = (int) ($post['knowledge_post_id'] ?? 0);
        if ($postId > 0) {
            $postIds[] = $postId;
        }
    }
}

$knowledgePostTitleMap = [];
$lookupService = $services['lookupService'] ?? null;
if ($lookupService instanceof TaskLookupService && $postIds !== []) {
    $languageId = (int) ($GLOBALS['language']['id'] ?? 1);
    $knowledgePostTitleMap = $lookupService->getKnowledgePostTitleMapByIds($languageId, $postIds);
}

foreach ($methods as &$method) {
    if ((string) ($method['method_type'] ?? '') !== 'knowledge_read') {
        continue;
    }
    foreach ((array) ($method['knowledge_posts'] ?? []) as &$post) {
        $postId = (int) ($post['knowledge_post_id'] ?? 0);
        $post['title'] = $knowledgePostTitleMap[$postId] ?? ('Beitrag #' . $postId);
    }
    unset($post);
}
unset($method);

$responsibles = $services['ruleRepo']->getResponsiblesWithContactData($taskId);

// Eigene Kontaktdaten des Admins für die Prefill-Demo (nur falls Felder das
// nutzen) — sonst leer.
$neededPrefillColumns = [];
foreach ($methods as $m) {
    foreach ((array) ($m['form_fields'] ?? []) as $ff) {
        $col = trim((string) ($ff['prefill_column'] ?? ''));
        if ($col !== '' && ContactPrefillColumns::isValid($col)) {
            $neededPrefillColumns[$col] = true;
        }
    }
}
$contactData = [];
if ($neededPrefillColumns !== []) {
    try {
        $contactRow = TaskCertDb::fetchOne(
            'SELECT * FROM main_contact WHERE id = ? LIMIT 1',
            'i',
            [$auth->contactId()]
        );
        if (is_array($contactRow)) {
            $contactData = $contactRow;
        }
    } catch (Throwable $e) {
        $contactData = [];
    }
}

// Stub-Assignment: offen, in ferner Zukunft fällig, gehört dem Admin. Damit
// rendert die Detailseite alle Methoden/Felder, ohne ein echtes Assignment.
$assignment = [
    'id' => 0,
    'task_id' => $taskId,
    'status' => 'open',
    'due_at' => '2099-12-31 23:59:59',
    'main_contact_id' => $auth->contactId(),
];

// Variablen für das User-Template vorbelegen (überspringt dessen Lade-Guard).
$error = null;
$submissions = [];
$task_certificates_history = [];
$contact_data = $contactData;
$csrf_token = TaskCertCsrf::token();
$previewMode = true;

while (ob_get_level() > 0) {
    ob_end_clean();
}

header('Content-Type: text/html; charset=utf-8');

// Host-Design-Tokens (--blue-accent, --border, --ff-primary, --tc-radius …)
// laden, damit die Vorschau exakt wie die echte, vom Host umrahmte Detailseite
// aussieht. Pfad entspricht dem Host-Wrapper (mysyde/frontend/frontend_mysyde.php).
$globalCssPath = '/layout/frontend/b2c/dist/css/global.css';
$globalCssAbs = ($_SERVER['DOCUMENT_ROOT'] ?? '') . $globalCssPath;
$globalCssHref = $globalCssPath;
if (is_file($globalCssAbs)) {
    $globalCssHref .= '?time=' . filemtime($globalCssAbs);
}
?><!doctype html>
<html lang="de">
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Vorschau: <?php echo TaskCertView::e((string) ($task['title'] ?? 'Aufgabe')); ?></title>
    <link rel="stylesheet" href="<?php echo TaskCertView::e($globalCssHref); ?>">
</head>
<body>
<?php require __DIR__ . '/../user/task_detail.php'; ?>
</body>
</html>
<?php
exit;