export async function api<T>(path: string, init: RequestInit = {}): Promise<T> {
  const headers = new Headers(init.headers)
  if (init.body && !headers.has('Content-Type')) headers.set('Content-Type', 'application/json')

  const response = await fetch(path, { ...init, headers })
  if (response.status === 401) {
    window.location.assign('/auth/login')
    throw new Error('Authentication required')
  }
  if (!response.ok) {
    const body = await response.text()
    throw new Error(`${response.status}: ${body}`)
  }
  return response.json() as Promise<T>
}

export async function apiBlob(path: string, init: RequestInit = {}): Promise<Blob> {
  const headers = new Headers(init.headers)
  if (init.body && !headers.has('Content-Type')) headers.set('Content-Type', 'application/json')

  const response = await fetch(path, { ...init, headers })
  if (response.status === 401) {
    window.location.assign('/auth/login')
    throw new Error('Authentication required')
  }
  if (!response.ok) throw new Error(`${response.status}: ${await response.text()}`)
  return response.blob()
}