module SlideHero
  class Point
    attr_reader :text
    SUPPORTED_ANIMATIONS = %w{grow shrink roll-in fade-out 
      highlight-red highlight-green highlight-blue}

    def initialize(text, animation: nil)
      @text = text
      @animation = animation
    end

    def compile
      "<p#{animation}>#{text}</p>"
    end

    private
    def animation
      if @animation
        animation_markup = ' class="fragment ' 
        if SUPPORTED_ANIMATIONS.include? @animation
          animation_markup << @animation 
        end
        animation_markup + "\""
      end
    end
  end
end