<?php
declare(strict_types=1);

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

if (!TaskCertRequest::isPost()) {
    TaskCertResponse::json(['success' => false, 'error' => 'Methode nicht erlaubt'], 405);
}

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

$contentType = trim((string) ($_SERVER['CONTENT_TYPE'] ?? ''));
$isJson = strpos($contentType, 'application/json') !== false;

if ($isJson) {
    $rawBody = file_get_contents('php://input');
    $body = json_decode($rawBody ?: '{}', true);
    if (!is_array($body)) {
        $body = [];
    }

    $csrfToken = trim((string) ($body['csrf_token'] ?? ''));
    if ($csrfToken !== '') {
        $_POST['csrf_token'] = $csrfToken;
    }
    TaskCertCsrf::assertValidFromRequest(true);

    $submissionId = (int) ($body['submission_id'] ?? 0);
    $decision = trim((string) ($body['decision'] ?? ''));
    $note = trim((string) ($body['note'] ?? ''));
} else {
    TaskCertCsrf::assertValidFromRequest(true);
    $submissionId = TaskCertRequest::postInt('submission_id', 0);
    $decision = TaskCertRequest::postString('decision', '');
    $note = TaskCertRequest::postString('note', '');
}

if ($submissionId <= 0) {
    TaskCertResponse::json(['success' => false, 'error' => 'Ungültige submission_id'], 400);
}

if (!in_array($decision, ['approve', 'reject'], true)) {
    TaskCertResponse::json(['success' => false, 'error' => 'Ungültige decision'], 400);
}

try {
    $services = task_cert_services();

    if ($decision === 'approve') {
        $services['approvalService']->approveSubmission($submissionId, $auth->contactId(), $note);
    } else {
        $services['approvalService']->rejectSubmission($submissionId, $auth->contactId(), $note);
    }

    TaskCertResponse::json([
        'success' => true,
        'submission_id' => $submissionId,
        'decision' => $decision,
    ]);
} catch (Throwable $throwable) {
    TaskCertResponse::json([
        'success' => false,
        'error' => $throwable->getMessage(),
    ], 400);
}