added cookies timestamp

cookies.py

@@ -0,0 +1,48 @@
+import streamlit as st
+import time
+from cookies_manager import EncryptedCookieManager
+
+# This should be your unique encryption key, which should be kept secure.
+cookie_manager = EncryptedCookieManager(
+    prefix="myapp_",  # Define a prefix for the cookie to avoid conflicts
+    password="your_secure_cookie_password"  # Replace with your secure password
+)
+
+# Initialize cookies
+if not cookie_manager.ready():
+    st.stop()
+
+
+def get_user_timestamp():
+    # Check if timestamp already exists in cookies
+    timestamp = cookie_manager.get("user_timestamp")
+
+    if timestamp:
+        st.write(f"Welcome back! Your session started at: {timestamp}")
+        return timestamp
+    else:
+        # Generate a new timestamp in milliseconds
+        new_timestamp = str(int(time.time() * 1000))
+        cookie_manager.set("user_timestamp", new_timestamp, max_age=3600 * 24 * 7)  # Store the timestamp for 7 days
+        st.write(f"New session started! Your timestamp is: {new_timestamp}")
+        return new_timestamp
+
+
+# Chatbot function
+def chatbot():
+    st.title("Chatbot with Timestamps in Cookies")
+
+    # Retrieve or create timestamp for the user
+    timestamp = get_user_timestamp()
+
+    # Display the chat prompt
+    user_input = st.text_input("You: ", "")
+
+    if user_input:
+        # Here, instead of querying Ollama, we simulate a chatbot response
+        st.write(f"**Bot:** You said '{user_input}' at {timestamp}")
+
+
+# Main
+if __name__ == "__main__":
+    chatbot()