function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next)
{
/** @var ResponseInterface $response */
$response = $next();
$lang = $this->locale->locale();
// The check for app->translation is made here instead of conditionally adding this middleware
// because loaded modules can change this setting.
if (!$this->settings->translation || !$lang) {
return $response;
}
if (!isset(self::$translation[$lang])) {
// Load and merge all translation files now.
self::$translation[$lang] = [];
$trans =& self::$translation[$lang];
$folders = $this->settings->languageFolders;
foreach ($folders as $folder) {
$path = "{$folder}/{$lang}.ini";
$newTrans = fileExists($path) ? parse_ini_file($path) : null;
if ($newTrans) {
$trans = array_merge($trans, $newTrans);
}
}
if (!$trans) {
$paths = array_map(function ($path) {
return "<li>" . ErrorConsole::shortFileName($path);
}, $folders);
throw new ConfigException("A translation file for language <b>{$lang}</b> was not found.\n<p>Search paths:\n<ul>" . implode('', $paths) . "</ul>", FlashType::ERROR);
}
}
$out = preg_replace_callback(self::FIND_TRANS_KEY, function ($args) use($lang) {
$a = $args[1];
return empty(self::$translation[$lang][$a]) ? '$' . $a : preg_replace('#\\r?\\n#', '<br>', self::$translation[$lang][$a]);
}, $response->getBody());
return $response->withBody($this->responseFactory->makeBody($out));
}
