<?php

declare(strict_types=1);

require_once $_SERVER['DOCUMENT_ROOT'] . '/intranet_repo/general_files/initialise.php';
require_once __DIR__ . '/util/camera_remote_helpers.php';

header('Content-Type: application/json; charset=utf-8');

function camera_remote_response(int $status, array $payload): never
{
    http_response_code($status);
    echo json_encode($payload, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
    exit;
}

if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
    camera_remote_response(405, ['ok' => false, 'error' => 'Methode nicht erlaubt.']);
}
if (!camera_remote_is_authorized(is_array($groups ?? null) ? $groups : [])) {
    camera_remote_response(403, ['ok' => false, 'error' => 'Keine Berechtigung für die Kamera-Fernbedienung.']);
}

try {
    camera_remote_verify_csrf($_POST['csrf_token'] ?? null);
    $action = is_string($_POST['action'] ?? null) ? $_POST['action'] : '';
    camera_remote_run($action);
    camera_remote_response(200, ['ok' => true]);
} catch (InvalidArgumentException $exception) {
    camera_remote_response(400, ['ok' => false, 'error' => $exception->getMessage()]);
} catch (RuntimeException $exception) {
    camera_remote_response(503, ['ok' => false, 'error' => $exception->getMessage()]);
} catch (Throwable $exception) {
    error_log('Camera Remote: ' . $exception->getMessage());
    camera_remote_response(500, ['ok' => false, 'error' => 'Der Kamerabefehl konnte nicht ausgeführt werden.']);
}