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app.py

@@ -3,6 +3,11 @@ import httpx
 from fastapi import FastAPI, Request, HTTPException
 from fastapi.responses import HTMLResponse
 from fastapi.staticfiles import StaticFiles
+import logging
+
+# --- Basic Logging Configuration ---
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
 
 # --- Configuration ---
 # Get the API key from Hugging Face Secrets
@@ -29,8 +34,11 @@ async def proxy_deepseek(request: Request):
     This endpoint receives the request from our frontend (index.html),
     adds the secret API key, and forwards it to the DeepSeek API.
     """
+    logger.info("Received request for /call-deepseek proxy.")
+    
     # Check if the API key is configured in HF Secrets
     if not DEEPSEEK_API_KEY:
+        logger.error("DEEPSEEK_API_KEY is not set on the server.")
         raise HTTPException(
             status_code=500, 
             detail="DEEPSEEK_API_KEY is not set on the server."
@@ -39,13 +47,17 @@ async def proxy_deepseek(request: Request):
     try:
         # Get the original JSON body from the frontend
         body = await request.json()
+        logger.info(f"Request body model: {body.get('model')}")
 
         # Prepare the authorization headers for DeepSeek
+        # Use .strip() to remove potential leading/trailing whitespace from the secret
+        stripped_api_key = DEEPSEEK_API_KEY.strip()
         headers = {
             "Content-Type": "application/json",
-            "Authorization": f"Bearer {DEEPSEEK_API_KEY}"
+            "Authorization": f"Bearer {stripped_api_key}"
         }
         
+        logger.info("Forwarding request to DeepSeek API.")
         # Make the asynchronous request to DeepSeek
         response = await client.post(
             DEEPSEEK_ENDPOINT,
@@ -57,19 +69,20 @@ async def proxy_deepseek(request: Request):
         # Check if DeepSeek returned an error
         response.raise_for_status()
         
+        logger.info("Successfully received response from DeepSeek.")
         # Return DeepSeek's successful response directly to the frontend
         return response.json()
 
     except httpx.HTTPStatusError as e:
         # Handle errors from the DeepSeek API
-        print(f"Error from DeepSeek API: {e.response.text}")
+        logger.error(f"Error from DeepSeek API. Status: {e.response.status_code}, Response: {e.response.text}")
         raise HTTPException(
             status_code=e.response.status_code, 
-            detail=e.response.text
+            detail=f"Error from DeepSeek API: {e.response.text}"
         )
     except Exception as e:
         # Handle any other unexpected errors
-        print(f"Internal server error: {str(e)}")
+        logger.error(f"An internal server error occurred: {str(e)}", exc_info=True)
         raise HTTPException(
             status_code=500, 
             detail=f"Internal server error: {str(e)}"
@@ -91,7 +104,8 @@ async def read_root():
         with open(os.path.join(STATIC_DIR, "index.html")) as f:
             return HTMLResponse(content=f.read(), status_code=200)
     except FileNotFoundError:
+        logger.error("index.html not found in static directory.")
         return HTMLResponse(
             content="<h1>Error: index.html not found</h1><p>Ensure index.html is in a 'static' folder.</p>", 
             status_code=404
-        )
+        )