app.py

import os
from groq import Groq
import gradio as gr

client = Groq(api_key=os.environ.get("GROQ_API_KEY"))

# ✅ Convert history to correct format
def convert_history(history):
    messages = []

    for chat in history:
        user = chat[0]
        bot = chat[1]

        if user:
            messages.append({"role": "user", "content": user})
        if bot:
            messages.append({"role": "assistant", "content": bot})

    return messages


def respond(message, history):
    if history is None:
        history = []

    # Add user message
    history.append([message, None])

    messages = convert_history(history)

    # Call Groq
    response = client.chat.completions.create(
        messages=messages,
        model="llama-3.3-70b-versatile"
    )

    bot_reply = response.choices[0].message.content

    # Save bot reply
    history[-1][1] = bot_reply

    return history, history


with gr.Blocks() as demo:
    gr.Markdown("## 🤖 Groq Chatbot (Fixed Final)")

    chatbot = gr.Chatbot()
    msg = gr.Textbox()
    clear = gr.Button("Clear")

    state = gr.State([])

    msg.submit(respond, [msg, state], [chatbot, state])
    clear.click(lambda: ([], []), None, [chatbot, state])

demo.launch()