defmodule K8s.Conf.Auth.Token do
  @moduledoc """
  Token based cluster authentication
  """

  @behaviour K8s.Conf.Auth
  defstruct [:token]
  @type t :: %__MODULE__{token: binary}

  @impl true
  @spec create(map() | any, String.t() | any) :: K8s.Conf.Auth.Token.t() | nil
  def create(%{"token" => token}, _), do: %K8s.Conf.Auth.Token{token: token}

  @impl true
  def create(_, _), do: nil

  defimpl Inspect, for: __MODULE__ do
    import Inspect.Algebra

    def inspect(_auth, _opts) do
      concat(["#Token<...>"])
    end
  end

  defimpl K8s.Conf.RequestOptions, for: __MODULE__ do
    @doc "Generates HTTP Authorization options for certificate authentication"
    def generate(%K8s.Conf.Auth.Token{token: token}) do
      %K8s.Conf.RequestOptions{
        headers: [{"Authorization", "Bearer #{token}"}],
        ssl_options: []
      }
    end
  end
end