Renamed JsonErrorHandler to JsonErrorResponseGenerator

module/Rest/src/ErrorHandler/JsonErrorResponseGenerator.php

@@ -0,0 +1,41 @@
+<?php
+namespace Shlinkio\Shlink\Rest\ErrorHandler;
+
+use Acelaya\ExpressiveErrorHandler\ErrorHandler\ErrorResponseGeneratorInterface;
+use Fig\Http\Message\StatusCodeInterface;
+use Psr\Http\Message\ResponseInterface as Response;
+use Psr\Http\Message\ServerRequestInterface as Request;
+use Zend\Diactoros\Response\JsonResponse;
+use Zend\Expressive\Router\RouteResult;
+
+class JsonErrorResponseGenerator implements ErrorResponseGeneratorInterface, StatusCodeInterface
+{
+    /**
+     * Final handler for an application.
+     *
+     * @param \Throwable|\Exception $e
+     * @param Request $request
+     * @param Response $response
+     * @return Response
+     */
+    public function __invoke($e, Request $request, Response $response)
+    {
+        $status = $response->getStatusCode();
+        $responsePhrase = $status < 400 ? 'Internal Server Error' : $response->getReasonPhrase();
+        $status = $status < 400 ? self::STATUS_INTERNAL_SERVER_ERROR : $status;
+
+        return new JsonResponse([
+            'error' => $this->responsePhraseToCode($responsePhrase),
+            'message' => $responsePhrase,
+        ], $status);
+    }
+
+    /**
+     * @param string $responsePhrase
+     * @return string
+     */
+    protected function responsePhraseToCode($responsePhrase)
+    {
+        return strtoupper(str_replace(' ', '_', $responsePhrase));
+    }
+}