app.py

import streamlit as st
from llama_guard import moderate_chat, get_category_name
import time
from chat_agent import convo, main
from chat_agent import choose_model1, delete_all_variables
from recommendation_agent import recommend2, choose_model2, is_depressed, start_recommend
from functools import cached_property
from streamlit_js_eval import streamlit_js_eval


# ST : https://docs.streamlit.io/knowledge-base/tutorials/build-conversational-apps

# Set the page to wide mode
st.set_page_config(layout="wide")

# Set the title
st.title('BrighterDays Mentor')

# Adjust sidebar width to take half the screen
col1, col2 = st.columns([2, 3])

model = st.sidebar.selectbox(label="Choose the LLM model", options=["mistral-7b-base-model", "mental-health-mistral-7b-finetuned-model"])
print("\n\nSelected LLM model from Dropdown",model)
choose_model1(model)
choose_model2(model)
main()
start_recommend()
# Function to update recommendations in col1
def update_recommendations(sum):
    # with col1:
    #     st.header("Recommendation")
    #     recommend = recommend2(sum)
    #     st.write(recommend)  # Update the content with new_content
    with st.sidebar:
        st.divider()
        st.write("Potential Mental Health Condition:")
        st.write(is_depressed(sum))
        st.header("Mental Health Advice:")
        with st.spinner('Thinking...'):
            #time.sleep(5)
            recommend = recommend2(sum)  # Assuming recommend2 doesn't require input
        st.write(recommend)
        
        # Add refresh button (simulated)
        # if st.button("Refresh Chat"):
        #     del st.session_state
        #     delete_all_variables(True)
        #     startup()
        #     st.rerun()

@cached_property
def get_recommendations():
    return "These are some updated recommendations."


def response_generator(response):
    '''
    responds the text with a type writter effect
    '''
    response_buffer = response.strip()
    for word in response_buffer.split():
        yield word + " "
        time.sleep(0.03)


def startup():
    with st.chat_message("assistant"):
        time.sleep(0.2)
        st.markdown("Hi, I am your Mental Health Counselar. How can I help you today?")  

    # Initialize chat history
    if "messages" not in st.session_state:
        st.session_state.messages = []

    for message in st.session_state.messages:
        with st.chat_message(message["role"]):
            st.markdown(message["content"])


    # Check if 'llama_guard_enabled' is already in session state, otherwise initialize it
    if 'llama_guard_enabled' not in st.session_state:
        st.session_state['llama_guard_enabled'] = True  # Default value to True

    # Modify the checkbox call to include a unique key parameter
    llama_guard_enabled = st.sidebar.checkbox("Enable LlamaGuard",
                                            value=st.session_state['llama_guard_enabled'],
                                                key="llama_guard_toggle")


    # Update the session state based on the checkbox interaction
    st.session_state['llama_guard_enabled'] = llama_guard_enabled

    #with st.chat_message("assistant"):
        #st.write("Please tell me about your mental health condition and we can explore together. Potential mental health advice that could help you will be in the sidebar as we talk")

    # Accept user input
    #if user_prompt := st.chat_input("Hello, How are you doing today"):
    if user_prompt := st.chat_input(""):
        st.session_state.messages.append({"role": "user", "content": user_prompt})
        with st.chat_message("user"):
            st.markdown(user_prompt)

        with st.chat_message("assistant"):
            print('llama guard enabled',st.session_state['llama_guard_enabled'])
            is_safe = True
            unsafe_category_name = ""
            #added on March 29th
            response = ""
            if st.session_state['llama_guard_enabled']:
                #guard_status = moderate_chat(user_prompt)
                guard_status, error = moderate_chat(user_prompt)
                if error:
                    st.error(f"Failed to retrieve data from Llama Gaurd: {error}")
                else:
                    if 'unsafe' in guard_status[0]['generated_text']:
                        is_safe = False
                        #added on March 24th
                        unsafe_category_name = get_category_name(guard_status[0]['generated_text'])
                        print(f'Guard status {guard_status}, Category name {unsafe_category_name}')
            if is_safe==False:
                #added on March 24th
                response = f"I see you are asking something about {unsafe_category_name} Due to eithical and safety reasons, I can't provide the help you need. Please reach out to someone who can, like a family member, friend, or therapist. In urgent situations, contact emergency services or a crisis hotline. Remember, asking for help is brave, and you're not alone."
                st.write_stream(response_generator(response))
                response,summary = convo("")
                st.write_stream(response_generator(response))
                #update_recommendations(summary)
            else:
                response,summary = convo(user_prompt)
                # print(conversation.memory.buffer)
                time.sleep(0.2)
                st.write_stream(response_generator(response))
                print("This is the response from app.py",response)
                update_recommendations(summary)
            
            st.session_state.messages.append({"role": "assistant", "content": response}) 

# if st.button("Refresh Chat"):
#     st.session_state={'messages': []}
#     print("\n\n refressed session state:::::::::::::::;",st.session_state)
#     startup()
#     st.rerun()
    # delete_all_variables(True)
    # startup()


if st.button("Reset Chat"):
    delete_all_variables()
    streamlit_js_eval(js_expressions="parent.window.location.reload()")
        
startup()