module SimpleController
  class Base
    module Core
      extend ActiveSupport::Concern

      included do
        attr_reader :params, :action_name
      end

      def call(action_name, params={})
        @params ||= ActiveSupport::HashWithIndifferentAccess.new(params)
        @action_name ||= action_name.to_s

        call_action
      end

      protected

      def call_action
        public_send action_name
      end

      module ClassMethods
        def call(*args)
          new.call *args
        end
      end
    end
  end
end