maru_swagger

defmodule MaruSwagger.DSL do

  defmacro swagger(options) do
    only   = options |> Keyword.get(:only)
    except = options |> Keyword.get(:except)
    guard =
      case {only, except} do
        {nil, nil} -> true
        {nil, _}   -> not Mix.env in except
        {_,   nil} -> Mix.env in only
        _          -> raise ":only and :except are in conflict!"
      end
    quote do
      if unquote(guard) do
        @plugs_before {
          MaruSwagger.Plug,
          unquote(options)
          |> Keyword.drop([:only, :except])
          |> Keyword.put(:module, __MODULE__),
          true
        }
      end
    end
  end

end