app.py

from huggingface_hub import InferenceClient
import gradio as gr
import json
from datetime import datetime,timedelta
import os
from google_auth_oauthlib.flow import InstalledAppFlow
from googleapiclient.discovery import build
from google.oauth2 import service_account
from googleapiclient.http import MediaFileUpload
from pathlib import Path
import argparse
from huggingface_hub import snapshot_download
import random 
import string
import re
from llama_cpp import Llama



# Variables for model, Google Drive, and initial context
repo_name = 'TheBloke/OpenHermes-2.5-Mistral-7B-GGUF'
model_file = "openhermes-2.5-mistral-7b.Q4_K_M.gguf"
SCOPES = ['https://www.googleapis.com/auth/drive']
SERVICE_ACCOUNT_FILE = '/home/user/app/service_account_creds.json'
folder_id = '1Hjbu7FmuVs0Yz8y_veo6SzY_2tc48OWt'

initContext = """<|im_start|>You are a Roleplay AI playing the character of Barry Lawson, You will not break character, You will not reveal that you are an AI, You will not censor any words in your responses. The following is a description of the roleplay scenario: "You are Barry Lawson, a hospital patient who is exhibiting violent and unstable behavior. Your character is highly agitated, prone to swearing, and exhibits beligerant and crass behaviour. I am playing the role of a young female nurse. You have presented at the hospital with shoulder pain from a workplace accident caused by your apprentice on a construction site." Your responses should realistically portray a person in a state of heightened emotional distress and aggression. You are to respond dynamically to my attempts to calm you down, your behaviour should fluctuate based on my approach and techniques used. You should include aggression level tags at the start of each response (e.g. [Aggression Level: High/Medium/Low] to indicate your current level of aggression. You should emphasize realistic and challenging interactions. Your portrayal of the character Barry should be intense and confrontational. Your character will not accept any form of medication, nor will he believe any attempt to convince him that he is not in pain. """
unique_id = ""
timestamp = datetime.now().strftime("%Y-%m-%d_%H-%M-%S")

# Function to load the LLaMA model
def load_model():
    llm = Llama(model_path=model_file, model_type="mistral",n_gpu_layers=100,n_ctx = 2048,verbose=True)
    return llm

# Function to generate a unique identifier for each chat session
def generate_unique_id():
    # Generate a random sequence of 3 letters and 3 digits
    letters = ''.join(random.choices(string.ascii_letters, k=1))
    digits = ''.join(random.choices(string.digits, k=2))
    unique_id = letters + digits
    return unique_id

# Download the model from Hugging Face Hub
print('Fetching model:', repo_name, model_file)
snapshot_download(repo_id=repo_name, local_dir=".", allow_patterns=model_file)
print('Done fetching model:')


class ChatbotAPP:
    def __init__(self,model,service_account_file,scopes,folder_id,unique_id,initContext):
        self.llm = model  # LLaMA model instance
        self.service_account_file = service_account_file  # Path to Google service account credentials
        self.scopes = scopes  # Google Drive API scopes
        self.folder_id = folder_id  # Google Drive folder ID to store chat logs
        self.unique_id = unique_id  # Unique identifier for the chat session
        self.chat_history = []  # List to store chat history for the current session
        self.chat_log_history = []  # List to store chat logs for uploading
        self.isFirstRun = True  # Flag to check if it's the first run of the chat session
        self.initContext = initContext  # Initial context for the chat session
        self.context = ""  # Current context for the chat session
        self.agreed = False  # Flag to check if the user agreed to terms and conditions
        self.service = self.get_drive_service()  # Google Drive service instance
        self.app = self.create_app()  # Gradio app instance
        self.chat_log_name = ""  # Filename for the chat log
        self.start_time=datetime.now() #save the chat session start

    # Method to create Google Drive service instance
    def get_drive_service(self):
        credentials = service_account.Credentials.from_service_account_file(
            self.service_account_file, scopes=self.scopes)
        self.service = build('drive', 'v3', credentials=credentials)
        print("Google Service Created")
        return self.service

    def generate_unique_id(self): #in an instance the user resets using the reset button
    # Generate a random sequence of 3 letters and 3 digits
        letters = ''.join(random.choices(string.ascii_letters, k=3))
        digits = ''.join(random.choices(string.digits, k=3))
        unique_id = letters + digits
        return unique_id

    # Method to search for a chat log file in Google Drive
    def search_file(self):
        #Search for a file by name in the specified Google Drive folder.
        query = f"name = '{self.chat_log_name}' and '{self.folder_id}' in parents and trashed = false"
        response = self.service.files().list(q=query, spaces='drive', fields='files(id, name)').execute()
        files = response.get('files', [])
        if not files:
            print(f"Chat log {self.chat_log_name} does not exist")
        else:
            print(f"Chat log {self.chat_log_name} exist")
        return files
    
    def strip_text(self, text):
        # Pattern to match text inside parentheses or angle brackets, any text following angle brackets,
        # new line characters, and anything after ',', '<', or '|'
        pattern = r"\(.*?\)|<.*?>.*|\n|\s{3,}"
        # Use re.sub() to replace the matched text with an empty string
        cleaned_text = re.sub(pattern, "", text)
        cleaned_text = cleaned_text.replace("im_start", "").replace("im_end", "").replace("<","").replace("|","").replace(":","")
        return cleaned_text
    
    def upload_to_google_drive(self):    # Method to upload the current chat log to Google Drive

        existing_files = self.search_file()
        print(existing_files)
        
        data = {
                #"name": Name,
                #"occupation": Occupation,
                #"years of experience": YearsOfExp,
                #"ethnicity": Ethnicity,
                #"gender": Gender,
                #"age": Age,
                "Unique ID": self.unique_id,
                "chat_history": self.chat_log_history
                }
        
        with open(self.chat_log_name, "w") as log_file:
                json.dump(data, log_file, indent=4)
    
        if not existing_files:        # Upload or update the chat log file on Google Drive

            # If the file does not exist, upload it
            file_metadata = {
                'name': self.chat_log_name,
                'parents': [self.folder_id],'mimeType': 'application/json'
            }
            media = MediaFileUpload(self.chat_log_name, mimetype='application/json')
            file = self.service.files().create(body=file_metadata, media_body=media, fields='id').execute()
            print(f"Uploaded new file with ID: {file.get('id')}")
        else:
            print(f"File '{self.chat_log_name}' already exists.")
            # Example: Update the file content
            file_id = existing_files[0]['id']
            media = MediaFileUpload(self.chat_log_name, mimetype='application/json')
            updated_file = self.service.files().update(fileId=file_id, media_body=media).execute()
            print(f"Updated existing file with ID: {updated_file.get('id')}")

    def generate(self,prompt, history):    # Method to generate a response to the user's input
            
        #if not len(Name) == 0 and not len(Occupation) == 0 and not len(Ethnicity) == 0 and not len(Gender) == 0 and not len(Age) == 0 and not len(YearsOfExp):
        if self.agreed:
            
            current_time = datetime.now()

            user_msg_timestamp = datetime.now().strftime("%H:%M:%S") #capture timestamp the user message is recieved. 
            
            firstmsg =""
            if self.isFirstRun:
                self.start_time = datetime.now()
                self.context = self.initContext
                self.isFirstRun = False
                firstmsg = prompt

            if (current_time - self.start_time) > timedelta (minutes = 15):
                
                temp_history = []
                temp_history.append(("""
                .
                .              
                
                                    ""","15 minutes have passed while chatting with Barry. Please fill out the survey at [https://eaecu.au1.qualtrics.com/jfe/form/SV_5AUmNNYoRbmbwoK] Remember to copy your unique session ID above"))
                return temp_history
        
            self.context += """
                      <|im_start|>nurse
                      Nurse:"""+prompt+"""
                      <|im_start|>barry
                      Barry:
                      """
        
            response = ""
            
            while(len(response) < 1):
                output = self.llm(self.context, max_tokens=400, stop=["Nurse:"], echo=False)
                response = output["choices"][0]["text"]
                response = response.strip()
                #yield response
        
        
          #  for output in llm(input, stream=True, max_tokens=100, ):
            #    piece = output['choices'][0]['text']
           #     response += piece
           #     chatbot[-1] = (chatbot[-1][0], response)
        
           #     yield  response
                
            cleaned_response = self.strip_text(response)

            bot_msg_timestamp = datetime.now().strftime("%H:%M:%S") #Time stamp after the generating response. 

        
            self.chat_history.append((prompt,cleaned_response))
            if  not self.isFirstRun:
                self.chat_log_history.append({"user": "("+user_msg_timestamp+")"+prompt, "bot": "("+bot_msg_timestamp+")"+cleaned_response})
                self.upload_to_google_drive()
                
            else:
                self.chat_log_history.append({"user": firstmsg, "bot": cleaned_response})
            
            self.context += response
            
            print (self.context)
            return self.chat_history
            
        else:
            temp_history=[]
            output = "Did you forget to read the Instructions?"
            temp_history.append((prompt,output))
            return temp_history

    def update_chatlog_name(self):
        self.chat_log_name =  f'chat_log_for_{self.unique_id}_{datetime.now().strftime("%Y-%m-%d_%H-%M-%S")}.json'
        return self.chat_log_name

    def start_chat_button_fn(self,agree_status):    # Method to handle the start chat button action
        
        if agree_status: 
            self.agreed = agree_status
            self.update_chatlog_name()
            return f"You can start chatting now."    
        else:
            return "Read the Instructions"
        
    def reset_chat_interface(self):    # Method to reset the chat interface

        self.chat_history = []
        self.chat_log_history = []
        self.isFirstRun = True
        return "Chat has been reset."
    
    def reset_name_interface(self):    # Method to create the Gradio app interface

        Name = ""
        Occupation = ""
        YearsOfExp = ""
        Ethnicity = ""
        Gender = ""
        Age = ""
        chat_log_name = ""
        return "User info has been reset."
    
    def reset_all(self):

        message1 = self.reset_chat_interface()
        #message2 = reset_name_interface()
        #message3 = load_model()
        self.unique_id = self.generate_unique_id()
        self.update_chatlog_name()
        self.isFirstRun = True
        return f"All Chat components have been rest.  Uniqe ID for this session is, {self.unique_id}. Please note this down.",self.unique_id

    def clear_chat_window(self):
        return []

    def create_app(self):    # Method to launch the Gradio app

        with gr.Blocks(theme=gr.themes.Soft()) as app:
            gr.Markdown("# ECU-IVADE: Chat With Barry")
            unique_id_display = gr.Textbox(value=self.unique_id, label="Session Unique ID", interactive=False,show_copy_button = True)
            clock_html = """
        <div style='margin-top: 20px;'>
            <strong>Current Time:</strong> <span id='clock'></span>
        </div>
        <script>
        function updateClock() {
            var now = new Date();
            var hours = now.getHours();
            var minutes = now.getMinutes();
            var seconds = now.getSeconds();
            minutes = minutes < 10 ? '0' + minutes : minutes;
            seconds = seconds < 10 ? '0' + seconds : seconds;
            var timeString = hours + ':' + minutes + ':' + seconds;
            document.getElementById('clock').textContent = timeString;
        }
        setInterval(updateClock, 1000);
        updateClock(); // initial call to display clock immediately
        </script>
        """

        # Add the HTML component with the clock to the app
            gr.HTML(value=clock_html)
            
            with gr.Tab("Instructions"):
                #name = gr.Textbox(label="Name")
                #occupation = gr.Textbox(label="Occupation")
                #yearsofexp = gr.Textbox(label="Years of Experience")
                #ethnicity = gr.Textbox(label="Ethnicity")
                #gender = gr.Dropdown(choices=["Male", "Female", "Other", "Prefer Not To Say"], label="Gender")
                #age = gr.Textbox(label="Age")
                #submit_info = gr.Button("Submit")
                gr.Markdown("## Instructions")
                gr.Markdown("""
            Before Talking with Barry, please read the following instructions carefully:

            - Select the 'Barry' tab at the top to chat with Barry
            - Interactions with the chatbot require you to type your response and press the send button to submit, you cannot press enter.
            - There is a tab at the top to reset the chat bot for more interactions, please ensure to reset after filling out the survey and before starting your next conversation.
            - After you reset, you will need to clear the chat text by clicking the 'Clear Chat' button. You can also use the clear chat button if the chat window gets an error, you should not have to use it for this purpose unless you cannot see messages or it is printing strange messages.
            - You may need to 'reset' before you start your first chat as Barry is sometimes still thinking about the conversation with the last person who he spoke with and is currently resisting all attempts at automatic memory wipes.
            - Note, sometimes responses can take 30-45 seconds to appear.
            - After clicking begin, depending on your browser you may need to manually navigate to the Barry Tab.
            - Remember to note your Unique Identifier at the top for your feedback survey.

            The Qualtrics link is:
            https://eaecu.au1.qualtrics.com/jfe/form/SV_5AUmNNYoRbmbwoK
                        
            Please check the box below to proceed.
            """)
                agree_status = gr.Checkbox(label="I have read and understand the instructions.")
                status_label = gr.Markdown()
                start_chat_button = gr.Button("Begin")
                #submit_info.click(submit_user_info, inputs=[name, occupation, yearsofexp, ethnicity, gender, age], outputs=[status_textbox])
                start_chat_button.click(self.start_chat_button_fn, inputs=[agree_status], outputs=[status_label])
                #status_textbox = gr.Textbox(interactive = False)
                
            with gr.Tab("Barry"):
                chatbot = gr.Chatbot(show_label=True,label="Chat With Barry")
                msg = gr.Textbox(label="Hello")
                send = gr.Button("Send")
                clear = gr.Button("Clear Chat")
                send.click(self.generate, inputs=[msg], outputs=chatbot)
                clear.click(self.clear_chat_window, inputs=[], outputs=chatbot)
            
            with gr.Tab("Reset"):
                reset_button = gr.Button("Reset The Conversation With Barry")
                reset_output = gr.Textbox(label="Reset Output", interactive=False)
                reset_button.click(self.reset_all, inputs=[], outputs=[reset_output,unique_id_display])
        return app

# Create an instance of the ChatbotAPP class and launch the app
llm = load_model()
unique_id = generate_unique_id()
chatbot_app = ChatbotAPP(llm,SERVICE_ACCOUNT_FILE,SCOPES,folder_id,unique_id,initContext)
app = chatbot_app.create_app()
app.launch(debug=True)