chatbot.py

## but this chatbot is not able to remember context : like if i ask :
## q-1/ what is generative ai and then i ask q-2/ what are its applications then its not able to remember the context if 'its'

from dotenv import load_dotenv
load_dotenv() ## loading all the environment variables

import streamlit as st
import os
import google.generativeai as genai

genai.configure(api_key=os.getenv("GOOGLE_API_KEY"))

## function to load Gemini Pro model and get repsonses
model=genai.GenerativeModel("gemini-pro") 
chat = model.start_chat(history=[])  #This line starts a chat session with the model. 
                                     # The history=[] part means we are starting with an empty conversation history, so the model has no previous context.
def get_gemini_response(question):
    
    response=chat.send_message(question,stream=True)
    return response

##initialize our streamlit app

st.set_page_config(page_title="Q&A Demo")

st.header("Gemini LLM Application")

# Initialize session state for chat history if it doesn't exist
if 'chat_history' not in st.session_state:
    st.session_state['chat_history'] = []

input=st.text_input("Input: ",key="input")
submit=st.button("Ask the question")

if submit and input:
    response=get_gemini_response(input)
    # Add user query and response to session state chat history
    st.session_state['chat_history'].append(("You", input))
    st.subheader("The Response is")
    for chunk in response:    #This is useful if the response is streamed in parts.
        st.write(chunk.text)
        st.session_state['chat_history'].append(("Bot", chunk.text))
st.subheader("The Chat History is")
    
for role, text in st.session_state['chat_history']:
    st.write(f"{role}: {text}")


## notes:  The session state is a place where Streamlit can store variables that persist across reruns of the app.