<?php

use MintyPHP\Router;
use MintyPHP\Service\Access\PermissionService;
use MintyPHP\Service\User\UserAccessPdfService;
use MintyPHP\Service\User\UserServicesFactory;
use MintyPHP\Support\Guard;

define('MINTY_ALLOW_OUTPUT', true);

// Hard gate: user must be logged in and explicitly allowed to generate access PDFs.
Guard::requireLogin();
Guard::requirePermissionOrForbidden(PermissionService::USERS_ACCESS_PDF);
$userAccountService = (new UserServicesFactory())->createUserAccountService();

// Support both route param and POSTed uuid (POST avoids exposing uuid in URL/history).
$uuid = trim((string) ($id ?? ''));
if ($uuid === '' && strtoupper((string) ($_SERVER['REQUEST_METHOD'] ?? 'GET')) === 'POST') {
    $uuid = trim((string) ($_POST['uuid'] ?? ''));
}
$user = $uuid !== '' ? $userAccountService->findByUuid($uuid) : null;
if (!$user) {
    http_response_code(404);
    return;
}

$currentUserId = (int) ($_SESSION['user']['id'] ?? 0);
$userId = (int) ($user['id'] ?? 0);
// Enforce tenant scope on the target user before rendering any sensitive document.
if ($userId <= 0 || !directoryServicesFactory()->createDirectoryScopeGateway()->canAccess('users', $userId, $currentUserId)) {
    Router::redirect('error/forbidden');
    return;
}

$pdf = UserAccessPdfService::renderUserAccessPdf($user);
if ($pdf === '') {
    // Keep error generic; service handles concrete renderer/asset failures internally.
    http_response_code(500);
    return;
}

$locale = strtolower((string) (\MintyPHP\I18n::$locale ?? \MintyPHP\I18n::$defaultLocale));
$filename = str_starts_with($locale, 'de') ? 'zugangsdaten.pdf' : 'access-details.pdf';

header('Content-Type: application/pdf');
header('Content-Disposition: inline; filename="' . $filename . '"');
header('Cache-Control: private, no-store, max-age=0');
header('Pragma: no-cache');
header('X-Content-Type-Options: nosniff');
header('Content-Length: ' . strlen($pdf));

$output = fopen('php://output', 'wb');
if ($output === false) {
    http_response_code(500);
    return;
}
fwrite($output, $pdf);
fclose($output);