import gradio as gr
from openai import OpenAI
import os

default_prompt = "The best thing about being a cat is"

def generate_completion(api_key, prompt, temperature, repetition_penalty, stop_phrase, max_tokens):
    if not api_key:
        return "Please enter your OpenRouter API key."
    
    try:
        # Initialize the OpenAI client with OpenRouter
        client = OpenAI(
            base_url="https://openrouter.ai/api/v1",
            api_key=api_key,
        )
        
        completion = client.completions.create(
            model="meta-llama/llama-3.1-405b",
            prompt=prompt,
            temperature=temperature,
            frequency_penalty=repetition_penalty,
            max_tokens=max_tokens,
            stop=[stop_phrase] if stop_phrase else None
        )
        return completion.choices[0].text.strip()
    except Exception as e:
        return f"An error occurred: {str(e)}"

def append_completion(prompt, completion):
    new_prompt = f"{prompt}{completion}".strip()
    return new_prompt, ""  # Return new prompt and empty completion

def clear_fields():
    return "", ""

with gr.Blocks(theme=gr.themes.Soft()) as iface:
    gr.Markdown("# Llama 3.1 405B Completion Interface via OpenRouter")
    
    # API Key input at the top
    api_key_input = gr.Textbox(
        label="OpenRouter API Key", 
        type="password", 
        placeholder="Enter your OpenRouter API key"
    )

    with gr.Row():
        with gr.Column(scale=2):
            prompt_input = gr.Textbox(label="Prompt", lines=6, value="The best thing about being a cat is")
        with gr.Column(scale=1):
            temperature_slider = gr.Slider(minimum=0, maximum=1, value=0.7, step=0.1, label="Temperature")
            repetition_penalty_slider = gr.Slider(minimum=0, maximum=2, value=0.1, step=0.1, label="Repetition Penalty")
            max_tokens_slider = gr.Slider(minimum=1, maximum=4000, value=250, step=1, label="Max Tokens")
            stop_phrase_input = gr.Textbox(label="Stop Phrase", placeholder="Enter stop phrase (optional)")

    with gr.Row():
        generate_button = gr.Button("Generate Completion")
        append_button = gr.Button("Append Completion to Prompt")
        clear_button = gr.Button("Clear All Fields")

    output_text = gr.Textbox(label="Generated Completion", lines=10)

    generate_button.click(
        generate_completion,
        inputs=[api_key_input, prompt_input, temperature_slider, repetition_penalty_slider, stop_phrase_input, max_tokens_slider],
        outputs=output_text
    )

    append_button.click(
        append_completion,
        inputs=[prompt_input, output_text],
        outputs=[prompt_input, output_text]
    )

    clear_button.click(
        clear_fields,
        outputs=[prompt_input, output_text]
    )

iface.launch(share=True)