defmodule Mix.Tasks.Kopokopo.AuthCheck do
  @moduledoc """
  Checks whether the configured Kopo Kopo credentials can obtain an access token.

      mix kopokopo.auth_check
  """

  use Mix.Task

  @shortdoc "Checks Kopo Kopo OAuth credentials"

  @impl Mix.Task
  def run(_args) do
    Mix.Task.run("app.start")

    case KopoKopo.auth_check() do
      {:ok, token} ->
        Mix.shell().info("Kopo Kopo auth OK.")
        Mix.shell().info("Access token prefix: #{String.slice(token, 0, 8)}...")

      {:error, reason} ->
        Mix.raise("Kopo Kopo auth failed: #{inspect(reason)}")
    end
  end
end