import os
import requests

TRANSLATE_API = "https://p9ai-translator.hf.space/api/translate"  # Replace with your space URL

def translate_remote(state):
    filename = state.get("filename")
    text = state.get("text")
    target_lang = state.get("target_lang")
    if not target_lang:
        raise ValueError("translate_remote requires state['target_lang']")

    data = {
        "target_lang": target_lang,
        "start_page": state.get("start_page", 1),
        "end_page": state.get("end_page", 1),
    }
    if text is not None:
        data["text"] = text
    if filename is not None:
        data["filename"] = filename

    headers = {"Authorization": f"Bearer {os.getenv('HUGGINGFACE_API_TOKEN')}"}
    path = state.get("temp_files", {}).get(filename)

    if path:
        with open(path, "rb") as f:
            files = {"file": (filename, f, "application/pdf")}
            resp = requests.post(TRANSLATE_API, files=files, data=data, headers=headers)
    else:
        if "text" not in data:
            raise ValueError("translate_remote requires at least one of: file or text in state")
        resp = requests.post(TRANSLATE_API, data=data, headers=headers)

    if resp.status_code != 200:
        raise RuntimeError(f"Translate API failed: {resp.text}")

    js = resp.json()
    state["translation"] = js.get("translation", js)
    return state