app.py

import gradio as gr
import os
from groq import Groq

# === Load API Key from environment ===
GROQ_API_KEY = os.getenv("GROQ_API_KEY")
if not GROQ_API_KEY:
    raise ValueError("Missing GROQ_API_KEY. Please set it in the Hugging Face Space 'Secrets'.")

# === Initialize Groq client ===
client = Groq(api_key=GROQ_API_KEY)

# === Chat function ===
def chat_with_groq(message, history):
    messages = [{"role": "system", "content": "You are a helpful assistant."}]
    for user_msg, bot_msg in history:
        messages.append({"role": "user", "content": user_msg})
        messages.append({"role": "assistant", "content": bot_msg})
    messages.append({"role": "user", "content": message})

    try:
        response = client.chat.completions.create(
            model="llama3-8b-8192",  # ✅ currently supported
            messages=messages,
            temperature=0.7,
        )
        reply = response.choices[0].message.content
    except Exception as e:
        reply = f"Error: {e}"

    return reply

# === Gradio UI ===
chatbot = gr.ChatInterface(fn=chat_with_groq, title="Groq Chatbot")

# === Run app ===
if __name__ == "__main__":
    chatbot.launch()