export async function api(path, { token, method = 'GET', body } = {}) {
  const headers = {}
  if (token) headers['X-Auth-Token'] = token
  if (body !== undefined) headers['Content-Type'] = 'application/json'
  const response = await fetch(path, {
    method,
    headers,
    body: body !== undefined ? JSON.stringify(body) : undefined
  })
  const data = await response.json().catch(() => null)
  if (!response.ok) {
    const detail = data?.detail
    const message = typeof detail === 'string' ? detail : (detail?.message || 'Anfrage fehlgeschlagen')
    const error = new Error(message)
    error.status = response.status
    error.payload = data
    throw error
  }
  return data
}