defmodule Fcmex.Util do
  @moduledoc ~S"
    Utils for Fcmex
  "

  alias HTTPoison.Response

  @success_status 200..299
  @client_error_status 400..499
  @server_error_status 500..599

  def parse_result({:ok, %Response{status_code: status, body: body}})
      when status in @success_status,
      do: {:ok, Poison.decode!(body)}

  def parse_result({:ok, %Response{status_code: status, body: body}})
      when status in @client_error_status do
    body
    |> Poison.decode()
    |> case do
         {:ok, decoded} -> {:error, decoded}
         {:error, _} -> {:error, body}
       end
  end

  def parse_result({:ok, %Response{status_code: status, body: body}})
      when status in @server_error_status,
      do: body

  def parse_result({_, %Response{status_code: _, body: _} = response}), do: response
end