add test command

backend/services/line_bot_service.py

@@ -33,6 +33,10 @@ class LineBotService:
             # 記錄用戶訊息
             logger.info(f"收到來自用戶 {user_id} 的訊息: {message_text}")
             
+            # 🔧 後門測試：直接與 DeepSeek V3 聊天
+            if message_text.startswith('##test##'):
+                return self._handle_deepseek_test(user_id, message_text[8:].strip())
+            
             # 檢查是否為特殊指令
             if message_text.lower() in ['help', '幫助', '說明', '指令']:
                 return self._handle_help_command(user_id)
@@ -243,4 +247,112 @@ class LineBotService:
             return {
                 "success": False,
                 "error": str(e)
-            }
+            }
+
+        def _handle_deepseek_test(self, user_id: str, test_message: str) -> Dict[str, Any]:
+            """
+            🔧 後門測試：直接與 DeepSeek V3 聊天
+            使用方式：在 LINE 中發送 "##test##你好" 
+            """
+            try:
+                import asyncio
+                import httpx
+                from backend.config import settings
+                
+                if not test_message:
+                    return {
+                        "type": "text",
+                        "text": "🔧 DeepSeek V3 測試模式\n\n使用方式：##test##[您的訊息]\n\n範例：##test##你好，請介紹一下自己",
+                        "user_id": user_id,
+                        "success": True,
+                        "intent": "deepseek_test"
+                    }
+                
+                # 同步調用異步函數的方法
+                def sync_call_deepseek():
+                    return asyncio.run(self._call_deepseek_api(test_message))
+                
+                try:
+                    response_text = sync_call_deepseek()
+                    
+                    return {
+                        "type": "text",
+                        "text": f"🤖 DeepSeek V3 回應：\n\n{response_text}",
+                        "user_id": user_id,
+                        "success": True,
+                        "intent": "deepseek_test"
+                    }
+                    
+                except Exception as api_error:
+                    return {
+                        "type": "text",
+                        "text": f"❌ DeepSeek V3 API 錯誤：\n{str(api_error)}\n\n請檢查：\n1. API Key 設定\n2. 網路連線\n3. OpenRouter 服務狀態",
+                        "user_id": user_id,
+                        "success": False,
+                        "intent": "deepseek_test",
+                        "error": str(api_error)
+                    }
+                    
+            except Exception as e:
+                logger.error(f"DeepSeek 測試錯誤: {str(e)}")
+                return {
+                    "type": "text",
+                    "text": f"❌ 測試功能錯誤：{str(e)}",
+                    "user_id": user_id,
+                    "success": False,
+                    "intent": "deepseek_test",
+                    "error": str(e)
+                }
+
+        async def _call_deepseek_api(self, message: str) -> str:
+            """
+            直接調用 DeepSeek V3 API
+            """
+            from backend.config import settings
+            
+            api_key = settings.OPENROUTER_API_KEY
+            model = settings.OPENROUTER_MODEL
+            
+            if not api_key:
+                return "❌ OPENROUTER_API_KEY 未設定"
+            
+            headers = {
+                "Authorization": f"Bearer {api_key}",
+                "Content-Type": "application/json",
+                "HTTP-Referer": "https://huggingface.co/spaces",
+                "X-Title": "LINE Bot DeepSeek Test"
+            }
+            
+            try:
+                async with httpx.AsyncClient(timeout=30.0) as client:
+                    response = await client.post(
+                        "https://openrouter.ai/api/v1/chat/completions",
+                        headers=headers,
+                        json={
+                            "model": model,
+                            "messages": [
+                                {
+                                    "role": "system",
+                                    "content": "你是 DeepSeek V3，一個強大的中文 AI 助手。請用繁體中文回應，並在回應開頭說明你是 DeepSeek V3。"
+                                },
+                                {
+                                    "role": "user",
+                                    "content": message
+                                }
+                            ],
+                            "temperature": 0.7,
+                            "max_tokens": 500
+                        }
+                    )
+                
+                if response.status_code == 200:
+                    result = response.json()
+                    content = result["choices"][0]["message"]["content"]
+                    return content
+                else:
+                    return f"❌ API 錯誤 {response.status_code}: {response.text}"
+                    
+            except httpx.TimeoutException:
+                return "❌ API 請求超時，請稍後再試"
+            except Exception as e:
+                return f"❌ 網路錯誤: {str(e)}"