module Stratify
  module Instapaper
    class Presenter
      delegate :url, :title, :description, :to => :@activity

      def initialize(activity)
        @activity = activity
      end

      def summary
        title.blank? ? url : title
      end

      def details
        join_fields_with_separator domain, description
      end

      def domain
        URI.parse(url).host
      end

      private

      def separator
        "\u2022"
      end

      def join_fields_with_separator(*fields)
        fields.reject(&:blank?).join(" #{separator} ")
      end
    end
  end
end