module Converters

  # Convert soundcloud player URL to embedded iframe
  def soundcloud(string, options = {})
    options = {
      :width => '100%',
      :height => 166,
      :auto_play => false,
      :theme_color => '00FF00',
      :color => '915f33',
      :show_comments => false,
      :show_artwork => false
    }.merge(options)

    @regex = /(https?:\/\/)?(www.)?soundcloud\.com\/\S*/

    begin
      string.gsub(@regex) do |match|
        new_uri = match.to_s
        new_uri = (new_uri =~ /^https?\:\/\/.*/) ? URI(new_uri) : URI("http://#{new_uri}")
        new_uri.normalize!
        width = options[:width]
        height = options[:height]
        auto_play = options[:auto_play]
        theme_color = options[:theme_color]
        color = options[:color]
        show_artwork = options[:show_artwork]
        show_comments = options[:show_comments]
        %{<iframe width="#{width}" height="#{height}" scrolling="no" frameborder="no" src="http://w.soundcloud.com/player/?url=#{new_uri}&show_artwork=#{show_artwork}&show_comments=#{show_comments}&auto_play=#{auto_play}&color=#{color}&theme_color=#{theme_color}"></iframe> }
      end
    rescue URI::InvalidURIError
      string
    end
  end

end