From d51fd0bc85672a884a881e1f1dce074facb28aba Mon Sep 17 00:00:00 2001
From: provokateurin <kate@provokateurin.de>
Date: Fri, 2 Feb 2024 12:46:03 +0100
Subject: [PATCH] fix: Block duplicate status code definitions

Signed-off-by: provokateurin <kate@provokateurin.de>
---
 src/ControllerMethod.php | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/ControllerMethod.php b/src/ControllerMethod.php
index ce1dabc..47701dd 100644
--- a/src/ControllerMethod.php
+++ b/src/ControllerMethod.php
@@ -70,7 +70,13 @@ public static function parse(string $context, array $definitions, ClassMethod $m
 					if ($docNode->value instanceof ReturnTagValueNode) {
 						$type = $docNode->value->type;
 
-						$responses = array_merge($responses, ResponseType::resolve($context, $type));
+						$resolvedResponses = ResponseType::resolve($context, $type);
+						$statusCodes = array_map(static fn (ControllerMethodResponse|null $response) => $response?->statusCode, $resolvedResponses);
+						$statusCodesDuplicates = array_filter(array_count_values($statusCodes), static fn (int $count) => $count > 1);
+						if (!empty($statusCodesDuplicates)) {
+							Logger::panic($context, 'Each status code can only be defined once, but '. implode(', ', $statusCodesDuplicates). ' was defined multiple times.');
+						}
+						$responses = array_merge($responses, $resolvedResponses);
 					}
 
 					if ($docNode->value instanceof ThrowsTagValueNode) {