module PrivatePub
  module ViewHelpers
    # Publish the given data or block to the client by sending
    # a Net::HTTP POST request to the Faye server. If a block
    # or string is passed in, it is evaluated as JavaScript
    # on the client. Otherwise it will be converted to JSON
    # for use in a JavaScript callback.
    def publish_to(channel, data = nil, &block)
      PrivatePub.publish_to(channel, data || capture(&block))
    end


    # Subscribe the client to the given channel. This generates
    # some JavaScript calling PrivatePub.sign with the subscription
    # options.
    def subscribe_to(channel)
      subscription = PrivatePub.subscription(:channel => channel)
      subscription
      #content_tag "script", :type => "text/javascript" do
      #  raw("PrivatePub.sign(#{subscription.to_json});")
      #end
    end

    def get_url_string(channel)
      PrivatePub.get_url_string(channel)
    end
  end
end
