app.py

#Running fine:)
import gradio as gr
import os
from langchain_huggingface import HuggingFaceEndpoint
from dotenv import load_dotenv
from langchain_community.document_loaders import WhatsAppChatLoader
from typing import List

# Load environment variables
load_dotenv()

# Get Hugging Face API token
HF_TOKEN = os.getenv("HF_TOKEN")

# Initialize the HuggingFace model
llm = HuggingFaceEndpoint(
    repo_id="mistralai/Mistral-7B-Instruct-v0.3",
    huggingfacehub_api_token=HF_TOKEN,
    temperature=0.7,
    max_new_tokens=300
)

# Load and process chat content
def load_chat_content(file) -> str:
    # Initialize the WhatsAppChatLoader with the uploaded file
    loader = WhatsAppChatLoader(path=file.name)
    raw_messages = loader.lazy_load()
    messages = list(raw_messages)
    
    # Combine all messages into a single string
    chat_content = "\n".join([doc.page_content for doc in messages])
    return chat_content

def answer_question(file, question: str) -> str:
    # Load the chat content from the uploaded file
    chat_content = load_chat_content(file)
    #prompt="Your task is to generate answer according to {question} based on the given {chat_content}"
    # Generate a response using the Hugging Face model
    response = llm(chat_content + "\n\n" + question)
    #response = llm(prompt)
    return response

# Define the Gradio interface
interface = gr.Interface(
    fn=answer_question,
    inputs=[
        gr.File(label="Upload WhatsApp Chat File"),
        gr.Textbox(label="Ask a Question", placeholder="Enter your question here...")
    ],
    outputs="text",
    title="WhatsApp Chat Q&A",
    description="Upload a WhatsApp chat file and ask questions related to the chat content.",
)

if __name__ == "__main__":
    interface.launch()