import gradio as gr
from gradio_client import Client, handle_file
import os

# Define your Hugging Face token (make sure to set it as an environment variable)
HF_TOKEN = os.getenv("HF_TOKEN")  # Replace with your actual token if not using an environment variable

# Initialize the Gradio Client for the specified API
#client = Client("on1onmangoes/CNIHUB10724v10", hf_token=HF_TOKEN)
client = Client("on1onmangoes/CNIHUB101324v10", hf_token=HF_TOKEN)
# on1onmangoes/CNIHUB101324v10


# Here's how you can fix it:

# Update the conversation history within the function.
# Return the updated history along with any other required outputs.


# Function to handle chat API call
# Function to handle chat API call
def stream_chat_with_rag(
    message: str,
    history: list,
    client_name: str,
    system_prompt: str,
    num_retrieved_docs: int,
    num_docs_final: int,
    temperature: float,
    max_new_tokens: int,
    top_p: float,
    top_k: int,
    penalty: float,
):
    # Use the parameters provided by the UI
    response = client.predict(
        message=message,
        client_name=client_name,
        system_prompt=system_prompt,
        num_retrieved_docs=num_retrieved_docs,
        num_docs_final=num_docs_final,
        temperature=temperature,
        max_new_tokens=max_new_tokens,
        top_p=top_p,
        top_k=top_k,
        penalty=penalty,
        api_name="/chat"
    )
    
    # Update the conversation history
    history = history + [(message, response)]
    
    # Return the assistant's reply and the updated history
    return "", history


# # Function to handle chat API call
# def stream_chat_with_rag(
#     message: str,
#     history: list,
#     client_name: str,
#     system_prompt: str,
#     num_retrieved_docs: int,
#     num_docs_final: int,
#     temperature: float,
#     max_new_tokens: int,
#     top_p: float,
#     top_k: int,
#     penalty: float,
# ):
#     # Use the parameters provided by the UI
#     response = client.predict(
#         message=message,
#         client_name=client_name,
#         system_prompt=system_prompt,
#         num_retrieved_docs=num_retrieved_docs,
#         num_docs_final=num_docs_final,
#         temperature=temperature,
#         max_new_tokens=max_new_tokens,
#         top_p=top_p,
#         top_k=top_k,
#         penalty=penalty,
#         api_name="/chat"
#     )
#     # Return the assistant's reply
#     return response

# Function to handle PDF processing API call
def process_pdf(pdf_file):
    return client.predict(
        pdf_file=handle_file(pdf_file),
        client_name="rosariarossi",  # Hardcoded client name
        api_name="/process_pdf2"
    )[1]  # Return only the result string

# Function to handle search API call
def search_api(query):
    return client.predict(query=query, api_name="/search_with_confidence")

# Function to handle RAG API call
def rag_api(question):
    return client.predict(question=question, api_name="/answer_with_rag")

# CSS for custom styling
CSS = """
# chat-container {
    height: 100vh;
}
"""

# Title for the application
TITLE = "<h1 style='text-align:center;'>My Gradio Chat App</h1>"

# Create the Gradio Blocks interface
with gr.Blocks(css=CSS) as demo:
    gr.HTML(TITLE)
    with gr.Tab("Chat"):
        chatbot = gr.Chatbot()  # Create a chatbot interface

        chat_interface = gr.ChatInterface(
            fn=stream_chat_with_rag,
            chatbot=chatbot,
            additional_inputs_accordion=gr.Accordion(label="⚙️ Parameters", open=False, render=False),
            additional_inputs=[
                gr.Dropdown(['rosariarossi','bianchifiordaliso','lorenzoverdi'],value="rosariarossi",label="Select Client", render=False,),
                gr.Textbox(
                    value="You are an expert assistant",
                    label="System Prompt",
                    render=False,
                ),
                gr.Slider(
                    minimum=1,
                    maximum=10,
                    step=1,
                    value=10,
                    label="Number of Initial Documents to Retrieve",
                    render=False,
                ),
                gr.Slider(
                    minimum=1,
                    maximum=10,
                    step=1,
                    value=9,
                    label="Number of Final Documents to Retrieve",
                    render=False,
                ),
                gr.Slider(
                    minimum=0.2,
                    maximum=1,
                    step=0.1,
                    value=0,
                    label="Temperature",
                    render=False,
                ),
                gr.Slider(
                    minimum=128,
                    maximum=8192,
                    step=1,
                    value=1024,
                    label="Max new tokens",
                    render=False,
                ),
                gr.Slider(
                    minimum=0.0,
                    maximum=1.0,
                    step=0.1,
                    value=1.0,
                    label="Top P",
                    render=False,
                ),
                gr.Slider(
                    minimum=1,
                    maximum=20,
                    step=1,
                    value=20,
                    label="Top K",
                    render=False,
                ),
                gr.Slider(
                    minimum=0.0,
                    maximum=2.0,
                    step=0.1,
                    value=1.2,
                    label="Repetition Penalty",
                    render=False,
                ),
            ],
        )

    with gr.Tab("Process PDF"):
        pdf_input = gr.File(label="Upload PDF File")
        pdf_output = gr.Textbox(label="PDF Result", interactive=False)

        pdf_button = gr.Button("Process PDF")
        pdf_button.click(
            process_pdf,
            inputs=[pdf_input],
            outputs=pdf_output
        )

    with gr.Tab("Search"):
        query_input = gr.Textbox(label="Enter Search Query")
        search_output = gr.Textbox(label="Search Confidence Result", interactive=False)

        search_button = gr.Button("Search")
        search_button.click(
            search_api,
            inputs=query_input,
            outputs=search_output
        )

    with gr.Tab("Answer with RAG"):
        question_input = gr.Textbox(label="Enter Question for RAG")
        rag_output = gr.Textbox(label="RAG Answer Result", interactive=False)

        rag_button = gr.Button("Get Answer")
        rag_button.click(
            rag_api,
            inputs=question_input,
            outputs=rag_output
        )

# Launch the app
if __name__ == "__main__":
    demo.launch()