import os
import requests

class MistralInference:
    def __init__(self, api_url=None, api_token=None):
        self.api_url = api_url or os.getenv("HF_MISTRAL_ENDPOINT")
        self.api_token = api_token or os.getenv("HF_TOKEN")

    def run(self, prompt: str) -> str:
        headers = {
            "Authorization": f"Bearer {self.api_token}",
            "Content-Type": "application/json"
        }
        payload = {
            "inputs": prompt,
            "parameters": {"max_new_tokens": 512}
        }
        try:
            response = requests.post(self.api_url, headers=headers, json=payload,timeout=30)
            response.raise_for_status()
            output = response.json()
            # Check different possible keys depending on model
            if isinstance(output, list) and "generated_text" in output[0]:
                return output[0]["generated_text"]
            elif "generated_text" in output:
                return output["generated_text"]
            elif "text" in output:
                return output["text"]
            else:
                return str(output)
        except Exception as e:
            return f"Error querying Mistral: {str(e)}"