Update app.py

app.py

@@ -18,6 +18,7 @@ from transformers import AutoModelForCausalLM, AutoTokenizer
 import torch
 import os
 import requests
+import time
 #HF_TOKEN  = os.getenv("HF_TOKEN")
 
 API_KEY = os.environ.get("OPENROUTER_API_KEY")
@@ -270,6 +271,14 @@ def chatbot(query):
 #demo.launch(share=False)
 # Initialize chat history with a welcome message
 
+
+def save_chat_to_file(chat_history):
+    timestamp = time.strftime("%Y%m%d-%H%M%S")  # Create a timestamp like 20250430-141522
+    filename = f"chat_history_{timestamp}.json"  # Unique filename
+    with open(filename, "w", encoding="utf-8") as f:
+        json.dump(chat_history, f, ensure_ascii=False, indent=2)
+    print(f"Chat history saved to {filename}")
+
 def ask(user_message, chat_history):
     if not user_message:
         return chat_history, chat_history, ""