From 8e4213e6345f575fb1dbcbef2daad5805ebc9142 Mon Sep 17 00:00:00 2001
From: Wenyan <porlong@qq.com>
Date: Thu, 30 Oct 2025 15:16:37 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E5=88=A0=E9=99=A4=E5=AF=B9?=
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问题：
- 删除对话实际成功但前端报错"Failed to delete conversation: 500"
- Dify删除API返回的可能不是JSON格式（空响应或文本）
- 原代码直接调用response.json()导致解析失败抛出异常

修复：
1. 添加Content-Type检查，只有JSON才解析
2. 非JSON响应直接返回成功标识 { result: 'success' }
3. 添加详细日志方便调试

现在删除对话能正确显示成功，无需刷新页面

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
---
 app/services/dify-client.server.ts | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/app/services/dify-client.server.ts b/app/services/dify-client.server.ts
index 559967b..e03c64f 100644
--- a/app/services/dify-client.server.ts
+++ b/app/services/dify-client.server.ts
@@ -202,11 +202,35 @@ export const difyClient = {
         // user 字段已移除，后端会自动从 JWT 中提取 username
         const body = {};
 
+        console.log('🗑️ [DifyClient] 删除会话:', conversationId);
+
         const response = await difyFetch(`conversations/${conversationId}`, {
             method: 'DELETE',
             body: JSON.stringify(body),
         }, jwt);
-        return response.json();
+
+        console.log('🗑️ [DifyClient] 删除会话响应:', {
+            status: response.status,
+            statusText: response.statusText,
+            contentType: response.headers.get('Content-Type')
+        });
+
+        // 检查响应的Content-Type
+        const contentType = response.headers.get('Content-Type');
+
+        // 如果是JSON响应，解析JSON
+        if (contentType && contentType.includes('application/json')) {
+            const data = await response.json();
+            console.log('🗑️ [DifyClient] 删除会话JSON响应:', data);
+            return data;
+        }
+
+        // 如果不是JSON，返回成功标识
+        const text = await response.text();
+        console.log('🗑️ [DifyClient] 删除会话文本响应:', text);
+
+        // 返回标准成功响应
+        return { result: 'success' };
     },
 
     // 更新消息反馈