import os
from openai import OpenAI

def get_llm_client(provider="nvidia"):
    """
    Returns an OpenAI client configured for the specified provider.
    
    Args:
        provider (str): "nvidia" or "mistral"
    
    Returns:
        OpenAI: The configured client
    """
    if provider == "nvidia":
        # Llama 4 Maverick via NVIDIA NIM
        api_key = os.getenv("NVIDIA_API_KEY")
        if not api_key:
            print("Warning: NVIDIA_API_KEY not found in environment variables.")
            
        return OpenAI(
            base_url="https://integrate.api.nvidia.com/v1",
            api_key=api_key
        )
    else:
        # Mistral Large 3 via Mistral API
        api_key = os.getenv("MISTRAL_API_KEY")
        if not api_key:
            print("Warning: MISTRAL_API_KEY not found in environment variables.")

        return OpenAI(
            base_url="https://api.mistral.ai/v1",
            api_key=api_key
        )

def get_model_name(provider="nvidia"):
    if provider == "nvidia":
        # Meta Llama 3.1 70B is stable and common on NVIDIA NIM
        return "meta/llama-3.1-70b-instruct"
    else:
        # Mistral Large latest ID
        return "mistral-large-latest"