Upload app.py

app.py

@@ -1,65 +1,103 @@
 import streamlit as st
-from streamlit_chat import message  # Ensure you have streamlit_chat installed
+from streamlit_chat import message
 from langchain_openai import ChatOpenAI
 from langchain.chains import ConversationChain
-from langchain.chains.conversation.memory import ConversationSummaryMemory
+from langchain.chains.conversation.memory import (ConversationBufferMemory, 
+                                                  ConversationSummaryMemory, 
+                                                  ConversationBufferWindowMemory
+               
+                                                  )
 
-# Initialize session state variables if they don't exist
 if 'conversation' not in st.session_state:
-    st.session_state['conversation'] = None
+    st.session_state['conversation'] =None
 if 'messages' not in st.session_state:
-    st.session_state['messages'] = []
+    st.session_state['messages'] =[]
 if 'API_Key' not in st.session_state:
-    st.session_state['API_Key'] = ''
+    st.session_state['API_Key'] =''
 
-# Set page configuration
-st.set_page_config(page_title="ChatMate: Your AI Conversation Partner", page_icon=":robot_face:")
+# Setting page title and header
+st.set_page_config(page_title="ChatMate: Your Professional AI Conversation Partner Solution", page_icon=":robot_face:")
 st.markdown("<h1 style='text-align: center; color: navy;'>ChatMate</h1>", unsafe_allow_html=True)
-st.markdown("<h4 style='text-align: center;'>Engage with a cutting-edge language model.</h4>", unsafe_allow_html=True)
-
-# Sidebar for API Key Input
-st.sidebar.title("API Key 🔑")
-st.session_state['API_Key'] = st.sidebar.text_input(
-    "Enter your OpenAI API Key:",
-    type="password",
-    help="Your API Key is safe with us and only used to power this conversation."
-)
-
-# Function to get a response from the model
-def get_response(user_input, api_key):
+st.markdown("<h4 style='text-align: center;'>A cutting-edge language model</h4>", unsafe_allow_html=True)
+st.markdown("<p style='text-align: right'>By <a href='https://entzyeung.github.io/portfolio/index.html'>Lorentz Yeung</a></p>", unsafe_allow_html=True)
+
+st.markdown("<p style='text-align: left;'>I am capable of recalling previous parts of our conversation, such as remembering your name if you share it with me.</p>", unsafe_allow_html=True)
+st.session_state['API_Key']= st.text_input("First, to get it work, put your OpenAI API Key here please, the system will enter for you automatically.",type="password")
+st.markdown("<p style='text-align: left;'>Then Tell me how I can help:</p>", unsafe_allow_html=True)
+
+
+
+# API Keys
+# st.sidebar.text_input() will automatically update st.session_state['API_Key'] with the input value whenever the user types into the field. 
+st.sidebar.title("Introduction")
+st.sidebar.markdown("""
+ChatMate is an advanced conversational AI interface, expertly crafted to demonstrate the fusion of Streamlit's user-friendly design and OpenAI's powerful GPT-3.5 model. Here are its highlights:
+
+<ul style='text-align: left;'>
+<li><strong>Intuitive Interface</strong>: Built with Streamlit, ChatMate offers a clean, responsive user experience, allowing for natural dialogue with the AI.</li>
+<li><strong>Advanced NLP</strong>: Incorporating OpenAI's most advanced GPT model, the app provides nuanced understanding and generation of human-like text, showcasing the model's impressive capabilities.</li>
+<li><strong>State Management</strong>: Utilizes <code>ConversationChain</code> and <code>ConversationMemory</code> from <code>langchain</code> to preserve the context and flow, ensuring coherent and engaging interactions.</li>
+<li><strong>Python Proficiency</strong>: The app's robust backend, written in Python, reflects the data scientist’s adeptness in programming and system design.</li>
+<li><strong>Secure Interaction</strong>: Streamlit's session state management is used for secure API key handling and user input retention across sessions.</li>
+</ul>
+
+ChatMate is developed by Lorentz Yeung
+""", unsafe_allow_html=True)
+
+#st.session_state['API_Key']= st.sidebar.text_input("Put your OpenAI API Key here please, the system will enter for you automatically.",type="password")
+
+# summarise_button = st.sidebar.button("Summarise the conversation", key="summarise")
+#if summarise_button:
+#    summarise_placeholder = st.sidebar.write("Nice chatting with you my friend ❤️")
+
+
+
+# Function to get response from the model
+def getresponse(userInput, api_key):
+
     if st.session_state['conversation'] is None:
+
         llm = ChatOpenAI(
             temperature=0,
             openai_api_key=api_key,
             model_name='gpt-3.5-turbo'
         )
+
         st.session_state['conversation'] = ConversationChain(
             llm=llm,
             verbose=True,
             memory=ConversationSummaryMemory(llm=llm)
         )
 
-    response = st.session_state['conversation'].predict(input=user_input)
+    response=st.session_state['conversation'].predict(input=userInput)
+    print(st.session_state['conversation'].memory.buffer)
+    
+
     return response
 
-# Main container for user input and displaying the conversation
+
+
 response_container = st.container()
+# Here we will have a container for user input text box
 container = st.container()
 
+# User input and response display
 with container:
     with st.form(key='my_form', clear_on_submit=True):
-        user_input = st.text_area("Ask me anything.", height=100)
+        user_input = st.text_area("Ask me questions please", key='input', height=100)
         submit_button = st.form_submit_button(label='Send')
 
         if submit_button:
             st.session_state['messages'].append(user_input)
-            model_response = get_response(user_input, st.session_state['API_Key'])
+            model_response=getresponse(user_input,st.session_state['API_Key'])
             st.session_state['messages'].append(model_response)
+            
 
             with response_container:
-                for i, msg in enumerate(st.session_state['messages']):
-                    # Alternate messages between user and AI
-                    is_user = (i % 2) == 0
-                    message(msg, is_user=is_user, key=f"msg_{i}")
+                for i in range(len(st.session_state['messages'])):
+                        if (i % 2) == 0:
+                            message(st.session_state['messages'][i], is_user=True, key=str(i) + '_user')
+                        else:
+                            message(st.session_state['messages'][i], key=str(i) + '_AI')
 
-# Optionally, you can add a feature to clear the conversation or summarize it using sidebar options
+