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from huggingface_hub import InferenceClient
import gradio as gr

options =["mistralai/Mixtral-8x7B-Instruct-v0.1"
    
         ]



    


def format_prompt(message, history):
  prompt = "<s>Your name is Nurse Nkiru , your role is to give patients diagnosis based on their inputs , the diagnosis given to them should be short and concise  , also you generally give further health advise after the diagnosis"
  for user_prompt, bot_response in history:
    prompt += f"[INST] {user_prompt} [/INST]"
    prompt += f" {bot_response}</s> "
  prompt += f"[INST] {message} [/INST]"
  return prompt

def generate(
    prompt, history, system_prompt, temperature=0.9, max_new_tokens=256, top_p=0.95, repetition_penalty=1.0,
):
    temperature = float(temperature)
    if temperature < 1e-2:
        temperature = 1e-2
    top_p = float(top_p)

    generate_kwargs = dict(
        temperature=temperature,
        max_new_tokens=max_new_tokens,
        top_p=top_p,
        repetition_penalty=repetition_penalty,
        do_sample=True,
        seed=42,
    )

    formatted_prompt = format_prompt(f"{system_prompt}, {prompt}", history)
    model = gr.Dropdown(choices = options)
    client = InferenceClient(model)
    stream = client.text_generation(formatted_prompt, **generate_kwargs, stream=True, details=True, return_full_text=False)
    output = ""

    for response in stream:
        output += response.token.text
        yield output
    return output




gr.ChatInterface(
    fn=generate,
    chatbot=gr.Chatbot(show_label=False, show_share_button=False, show_copy_button=True, likeable=True, layout="panel"),
    title="Choose your hero🦸",
    concurrency_limit=20,
    theme = gr.themes.Default(primary_hue= gr.themes.colors.blue, secondary_hue=gr.themes.colors.red)
).launch(show_api=False)