JordiPolo/kapnismology

# Rails support, this may need changes if Rails change internals
if defined?(Rails)
  module Kapnismology
    begin
      # Rails engine to automatically load our code and smoke tests libraries
      class Engine < ::Rails::Engine
        initializer 'kapnismology.add_autoload_paths', before: :set_autoload_paths do |_app|
          smoketest_dir = Rails.root.join('lib', 'smoke_test')
          if smoketest_dir.exist?
            Dir[File.join(smoketest_dir, '*.rb')].each { |file| require file }
          end
        end

        isolate_namespace Kapnismology
      end

      # Inserts the engine (the smoketest_controller) into a given path.
      # TODO: how to automatically do this without the user needing to insert?
      class Routes
        def self.insert!(path)
          if defined?(Kapnismology) == false
            raise 'require kapnismology before trying to insert routes'
          end

          Rails.application.routes.draw do
            mount Kapnismology::Engine, at: path
          end
        end
      end
    rescue NameError => e
      puts "Incompatible Rails version #{e}"
    end
  end
end