/**
* @param null $data
* @param int $httpCode
* @param null|array $headers
*
* @throws HTTP_Exception_Redirect
*/
static function json($data = NULL, $httpCode = 200, $headers = NULL)
{
if ($data instanceof HTTP_Exception_Redirect) {
throw $data;
}
$response = Kohana_Response::factory();
try {
$response->headers(['cache-control' => 'no-cache, no-store, max-age=0, must-revalidate', 'content-type' => 'application/json; charset=utf-8']);
if (Kohana_Arr::is_array($headers)) {
$response->headers($headers);
}
$response->status($httpCode);
} catch (Exception $e) {
$response->status($httpCode = 500);
$data = $e;
}
if ($data instanceof Exception) {
if ($data instanceof HTTP_Exception) {
$response->status($httpCode = $data->getCode());
} elseif ($httpCode < 400) {
$response->status($httpCode = 500);
}
$data = Helpers_Arr::exception($data);
}
if (NULL === $data && $httpCode == 200) {
$response->status(204);
} elseif (NULL !== $data) {
try {
$response->body(json_encode($data, JSON_UNESCAPED_UNICODE));
} catch (Exception $e) {
$response->body(json_encode(Helpers_Arr::exception($e), JSON_UNESCAPED_UNICODE), 500);
}
}
$response->send_headers(TRUE);
exit($response);
}
