import os
import json

import numpy as np
import pandas as pd

from huggingface_hub import hf_hub_download
from llama_cpp import Llama

import gradio as gr

hub_model_path = hf_hub_download(
    repo_id='TheBloke/h2ogpt-4096-llama2-13B-GGML',
    filename='h2ogpt-4096-llama2-13b.ggmlv3.q2_K.bin'
)
model = Llama(
    model_path=hub_model_path,
    n_ctx=220,  # Maximum context size. TODO: Increase this later.
    use_mlock=True,  # Force the system to keep the model in RAM.
    seed=77,
    n_batch=64
)

def generate(prompt):
    output = model(prompt, max_tokens=64, stop=['Q:', '\n'], echo=True)
    return json.dumps(output, indent=4)

iface = gr.Interface(fn=generate, inputs='text', outputs='text')
iface.launch()