add generate title to agentic

main.py

@@ -6,6 +6,7 @@ Main entry point for the application
 
 from fastapi import FastAPI, Query, HTTPException
 from fastapi.middleware.cors import CORSMiddleware
+from langchain_google_genai import GoogleGenerativeAI
 import os
 from dotenv import load_dotenv
 import logging
@@ -130,6 +131,28 @@ async def health_check():
     return health_status
 
 
+@app.get("/generate_title")
+def generate_title(first_question: str = Query(..., description="The first question to generate a title from")):
+    # Initialize the LLM - using the same model as in prepare_env.py
+    llm = GoogleGenerativeAI(
+        model="gemini-2.0-flash",
+        google_api_key=os.getenv("GOOGLE_API_KEY")
+    )
+    
+    prompt = f"""Analyze this question and generate a very short title (3-5 words max):
+    1. If it's medical/vaccine-related: Create a professional clinical title
+    2. If non-medical: Create a general topic title
+    3. If unclear or greeting: Use "General Inquiry"
+    
+    Always return just the title text, nothing else.
+    
+    Question: {first_question}
+    
+    Title:"""
+    
+    title = llm.invoke(prompt)
+    return {"title": title.strip()}
+
 if __name__ == "__main__":
     import uvicorn
     uvicorn.run(app, host="0.0.0.0", port=7860)