main.py

import os
import openai
import gradio as gr
from llama_index.core import (
    VectorStoreIndex,
    SimpleDirectoryReader,
    StorageContext,
    load_index_from_storage,
)

# Set OpenAI API key
os.environ["OPENAI_API_KEY"] = "sk-proj-xJs72X2tvslF5qqbIg1pT3BlbkFJ5Om15nbJuwQSB04DrYfs"
openai.api_key = 'sk-proj-xJs72X2tvslF5qqbIg1pT3BlbkFJ5Om15nbJuwQSB04DrYfs'

# Set the directory for persistent storage
PERSIST_DIR = "./storage"

# Load or create the document index
if not os.path.exists(PERSIST_DIR):
    documents = SimpleDirectoryReader("docs").load_data()
    index = VectorStoreIndex.from_documents(documents,show_progress=True)
    index.storage_context.persist(persist_dir=PERSIST_DIR)
else:
    storage_context = StorageContext.from_defaults(persist_dir=PERSIST_DIR)
    index = load_index_from_storage(storage_context)

# Query engine
query_engine = index.as_query_engine()

# Define the chatbot function
def chatbot_func(query, *args, **kwargs):
    response = query_engine.query(query)
    return str(response)

# Replaced  gr.Interface with gr.ChatInterface
iface = gr.ChatInterface(chatbot_func,chatbot=gr.Chatbot(height=800,placeholder="<strong>GPT-Based Chatbot</strong><br>Ask Me Anything"),)
iface.launch(share=True)