# mistral_hf_wrapper.py

import os
import requests

class MistralInference:
    def __init__(self):
        self.api_url = os.getenv("HF_MISTRAL_URL")
        self.api_token = os.getenv("HF_TOKEN")
        if not self.api_url or not self.api_token:
            raise ValueError("Missing HF_MISTRAL_URL or HF_TOKEN environment variables")

    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,
                "temperature": 0.7,
                "return_full_text": False
            }
        }

        response = requests.post(self.api_url, headers=headers, json=payload)
        response.raise_for_status()

        output = response.json()
        if isinstance(output, list) and "generated_text" in output[0]:
            return output[0]["generated_text"]
        elif isinstance(output, dict) and "generated_text" in output:
            return output["generated_text"]
        else:
            raise ValueError("Unexpected response format from Mistral endpoint")