defmodule Elixirfm do
  @moduledoc """
  Provides a wrapper for the Lastfm API.

  Currently in begining stages of development.  
  """
  use HTTPoison.Base

  defmodule MissingSecretKeyError do
    defexception message: """
      The secret_key settings is required for some of the Lastfm endpoints. Please include your
      Last.fm api key in your application config file like so:

        config :elixirfm, secret_key: _YOUR_SECRET_KEY_

      You can also set the secret key as an environment variable:

        LASTFM_SECRET_KEY= _YOUR_SECRET_KEY_
    """
  end

  def lastfm_key do
    Application.get_env(:elixirfm, :api_key, System.get_env("LASTFM_SECRET_KEY"))
    || raise MissingSecretKeyError
  end


  # def request(endpoint, body) do
  #   url = request_url(endpoint, opts)
  #   HTTPoison.get(url)    
  # end


  # def request(:get, endpoint, pagination_opts \\ []) do
  #   url = request_url(endpoint, pagination_opts)

  #   HTTPoison.get(url, create_headers())
  #   |> handle_response
  # end

end