From 1a04e924827f81fab7ceb4c9923eb2b597def1d7 Mon Sep 17 00:00:00 2001
From: root <root@FA.value-invest.cn>
Date: Thu, 29 Jan 2026 11:49:48 +0000
Subject: [PATCH] update: backend logic changes

---
 backend/app/api/chat_routes.py           | 14 +++++++++-----
 backend/app/services/analysis_service.py | 13 +++++++++++++
 2 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/backend/app/api/chat_routes.py b/backend/app/api/chat_routes.py
index b640446..68de157 100644
--- a/backend/app/api/chat_routes.py
+++ b/backend/app/api/chat_routes.py
@@ -58,11 +58,15 @@ async def chat_with_ai(request: ChatRequest, background_tasks: BackgroundTasks =
             tools.append(types.Tool(google_search=types.GoogleSearch()))
             final_system_prompt += "\n\n[SYSTEM INSTRUCTION] You have access to Google Search. You MUST use it to verify any data or find the latest information before answering. Do not rely solely on your internal knowledge."
 
-        config = types.GenerateContentConfig(
-            tools=tools if tools else None,
-            temperature=0.1,
-            system_instruction=final_system_prompt
-        )
+        # Build config - only set system_instruction if it has content
+        config_params = {
+            "tools": tools if tools else None,
+            "temperature": 0.1
+        }
+        if final_system_prompt and final_system_prompt.strip():
+            config_params["system_instruction"] = final_system_prompt
+
+        config = types.GenerateContentConfig(**config_params)
 
         start_time = time.time()
         
diff --git a/backend/app/services/analysis_service.py b/backend/app/services/analysis_service.py
index e711ca1..1cd254b 100644
--- a/backend/app/services/analysis_service.py
+++ b/backend/app/services/analysis_service.py
@@ -22,6 +22,19 @@ def get_genai_client() -> genai.Client:
         api_key = os.getenv('GEMINI_API_KEY')
         if not api_key:
             raise ValueError("GEMINI_API_KEY environment variable is not set")
+        
+        # Configure httpx proxy globally by monkey-patching
+        import httpx
+        proxy_url = os.getenv('https_proxy') or os.getenv('HTTPS_PROXY')
+        if proxy_url:
+            # Monkey-patch httpx to use proxy with SSL verification disabled
+            original_init = httpx.Client.__init__
+            def patched_init(self, **kwargs):
+                kwargs.setdefault('proxy', proxy_url)
+                kwargs.setdefault('verify', False)
+                return original_init(self, **kwargs)
+            httpx.Client.__init__ = patched_init
+            
         _client = genai.Client(api_key=api_key)
     return _client