app.py

import gradio as gr
from groq import Groq
import os

# ✅ Get API key from environment variable
# (You will set it in Hugging Face “Secrets” panel, not in code)
api_key = os.getenv("GROQ_API_KEY")

if not api_key:
    raise ValueError("⚠️ Please set your GROQ_API_KEY in the Hugging Face Space secrets.")

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

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

    # Call Groq API
    completion = client.chat.completions.create(
        model="openai/gpt-oss-20b",  # You can change to "llama3-8b" etc.
        messages=messages,
        temperature=0.7,
    )

    return completion.choices[0].message.content

# ✅ Build Gradio UI
chatbot = gr.ChatInterface(
    fn=chat_with_groq,
    title="Demo ChatBot by Ahmad",
    description="A simple chatbot powered by Groq API and Gradio, deployed on Hugging Face Spaces.",
    theme="soft"
)

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