import { HttpError } from "./errors";

async function readErrorBody(response: Response): Promise<string> {
  return await response.text().catch(() => "");
}

export async function fetchJson<T>(url: string, init?: RequestInit): Promise<T> {
  const response = await fetch(url, init);
  if (!response.ok) {
    throw new HttpError(response.status, await readErrorBody(response));
  }
  return await response.json() as T;
}

export async function fetchText(url: string, init?: RequestInit): Promise<string> {
  const response = await fetch(url, init);
  if (!response.ok) {
    throw new HttpError(response.status, await readErrorBody(response));
  }
  return await response.text();
}