model_service.py

import os
from groq import Groq

def get_client():
    api_key = os.environ.get("GROQ_API_KEY")
    if not api_key:
        raise RuntimeError(
            "GROQ_API_KEY is not set. Add it in Hugging Face Spaces → Settings → Secrets."
        )
    return Groq(api_key=api_key)

def ask_ai(question: str) -> str:
    client = get_client()

    messages = [
        {"role": "system", "content": "You are a helpful AI assistant."},
        {"role": "user", "content": question}
    ]

    completion = client.chat.completions.create(
        model="llama-3.3-70b-versatile",
        messages=messages
    )

    return completion.choices[0].message.content