import json
from urllib.parse import urlencode
from urllib.request import Request, urlopen
from urllib.error import HTTPError


class AlefbaClient:
    def __init__(self, api_key: str, base_url: str = "https://alefba.eu/api/v1") -> None:
        if not api_key:
            raise ValueError("ALEFBA API key is required.")
        self.api_key = api_key
        self.base_url = base_url.rstrip("/")

    def get(self, path: str, query: dict | None = None) -> dict:
        url = f"{self.base_url}/{path.lstrip('/')}"
        if query:
            url = f"{url}?{urlencode(query)}"

        request = Request(
            url,
            headers={
                "Accept": "application/json",
                "Authorization": f"Bearer {self.api_key}",
            },
            method="GET",
        )

        try:
            with urlopen(request, timeout=20) as response:
                return json.loads(response.read().decode("utf-8"))
        except HTTPError as exc:
            payload = json.loads(exc.read().decode("utf-8"))
            message = payload.get("error", {}).get("message", "ALEFBA API request failed.")
            raise RuntimeError(message) from exc