# MephistoFlickrAjax

require File.join(File.dirname(__FILE__), "..", "..", "..", "..", "lib", "mephisto", "routing.rb")

class FlickrController < ActionController::Base
  def index
    result = ""
    pics = find_pictures
    pics.each do |pic|
      result << "<a href='#{pic.link}'><img src='#{pic.send(params[:format].to_sym)}'></a>"
    end

    render :inline => result
  end
  protected
    def find_pictures
      FlickrPictureProvider.new(:feed => feed_url, :count => count).choose(count)
    end
    
    def feed_url
      params[:feed]
    end

    def count
      params[:count].to_i
    end

end

module Mephisto
  class Routing
    class << self
      def connect_with_with_flickr(map)
        map.connect 'flickr', :controller => 'flickr', :action => 'index'
        connect_with_without_flickr(map)
      end
      alias_method_chain :connect_with, :flickr
    end
  end
end


require 'flickr_picture_provider'

class FlickrAjaxPhotoStream < Liquid::Block
  def initialize(markup, tokens)
    super 
    @attributes = {
      :feed => 'http://api.flickr.com/services/feeds/photos_public.gne?id=57966634@N00&format=rss_200',
      :count => 6,
      :format => "square"
      }
      
    markup.scan(Liquid::TagAttributes) do |key, value|
      @attributes[key.to_sym] = value
    end
  end

  def feed_url
    @attributes[:feed]
  end
  
  def count
    @attributes[:count].to_i
  end
  
  def format
    @attributes[:format]    
  end

  def render(context)
    <<-EOF
      <div id="flickr_photos"></div>
      <script type="text/javascript">
        new Ajax.Updater("flickr_photos", "/flickr?feed=#{CGI.escape(feed_url)}&count=#{count}&format=#{format}")
      </script>
    EOF
  end
  
end

Liquid::Template.register_tag('flickrajaxphotostream', FlickrAjaxPhotoStream)