defmodule Requester do
	@moduledoc false

  defp build_headers(credentials) do
    basic_auth =
      "#{credentials[:username]}:#{credentials[:access_key]}"
      |> Base.encode64()

    headers = [
      {"Content-Type", "application/json"},
      {"Authorization", "Basic #{basic_auth}"}
    ]

    {:ok, headers}
  end

  def call(:GET, url, credentials, options \\ []) do
    {:ok, headers} = build_headers(credentials)
    url = "#{credentials[:base_url]}#{url}"

    case HTTPoison.get(url, headers, params: options) do
      {:ok, %{body: raw_body}} -> Poison.Parser.parse(raw_body, Map.new())
      {:error, reason} -> {:error, reason}
    end
  end
end