From 64b904dd07d8fa5cd872607c5ba0c54bc12168d9 Mon Sep 17 00:00:00 2001
From: Jeffery <jiantw83@yahoo.com>
Date: Mon, 11 May 2026 08:56:48 +0000
Subject: [PATCH] =?UTF-8?q?fix:=20=E6=94=AF=E6=8F=B4=E4=B8=8D=E6=8E=A5?=
 =?UTF-8?q?=E5=8F=97=20system=20role=20=E7=9A=84=E6=A8=A1=E5=9E=8B?=
 =?UTF-8?q?=EF=BC=88DeepSeek-R1=EF=BC=89?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 app/llm.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/app/llm.js b/app/llm.js
index db7217b..5dcd129 100644
--- a/app/llm.js
+++ b/app/llm.js
@@ -16,9 +16,16 @@ export async function chat(systemPrompt, userContent) {
   };
   if (provider === 'claude') headers['anthropic-version'] = '2023-06-01';
 
+  // 部分模型（如 DeepSeek-R1）不支援 system role，改合併到 user message
+  const NO_SYSTEM_ROLE_MODELS = ['deepseek-ai/deepseek-r1', 'deepseek-r1'];
+  const isNoSystemRole = NO_SYSTEM_ROLE_MODELS.some(m => model.toLowerCase().includes(m.toLowerCase()));
+  const messages = isNoSystemRole
+    ? [{ role: 'user', content: `${systemPrompt}\n\n${userContent}` }]
+    : [{ role: 'system', content: systemPrompt }, { role: 'user', content: userContent }];
+
   const resp = await axios.post(
     `${baseURL.replace(/\/$/, '')}/chat/completions`,
-    { model, messages: [{ role: 'system', content: systemPrompt }, { role: 'user', content: userContent }], temperature: 0.2 },
+    { model, messages, temperature: 0.2 },
     { headers, timeout: 120000, httpsAgent }
   );
   return resp.data.choices[0].message.content;