From 6aae919bf7e2fbe9c961bec3a614e64105fb9da0 Mon Sep 17 00:00:00 2001
From: gouki <gouki@neatcn.com>
Date: Thu, 15 Oct 2026 00:11:42 +0000
Subject: [PATCH] fix(covers): retry without prompt_optimizer on silent
 empty-image failure

---
 app/Blog/Services/CoverGenerator.php | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/app/Blog/Services/CoverGenerator.php b/app/Blog/Services/CoverGenerator.php
index 2f503fa..c72aaea 100644
--- a/app/Blog/Services/CoverGenerator.php
+++ b/app/Blog/Services/CoverGenerator.php
@@ -55,6 +55,11 @@ class CoverGenerator
             $response = $this->requestImage($this->neutralPrompt($style), $model);
         }
 
+        // 少数提示词在 prompt_optimizer 下静默失败（success 但无图）：关掉优化器重试一次。
+        if ($response->successful() && ! is_string($response->json('data.image_urls.0'))) {
+            $response = $this->requestImage($this->buildPrompt($post, $style), $model, false);
+        }
+
         if ($response->failed()) {
             throw new \RuntimeException('HTTP '.$response->status().'：'.Str::limit($response->body(), 200));
         }
@@ -112,7 +117,7 @@ class CoverGenerator
         return "博客文章封面配图。{$style}。画面中不要出现任何文字";
     }
 
-    private function requestImage(string $prompt, ?string $model = null): \Illuminate\Http\Client\Response
+    private function requestImage(string $prompt, ?string $model = null, bool $optimizer = true): \Illuminate\Http\Client\Response
     {
         $llm = $this->llm();
 
@@ -124,7 +129,7 @@ class CoverGenerator
                 'aspect_ratio' => '16:9',
                 'response_format' => 'url',
                 'n' => 1,
-                'prompt_optimizer' => true,
+                'prompt_optimizer' => $optimizer,
             ]);
     }
 }