module Cms::ContentBucketHelper

  def display_content(content_item, *args)
    case content_item.content_type.to_sym
    when :image
      display_content_image(content_item, *args)
    when :video
      content_tag(:p, "Video has not been implemented.")
    when :audio
      content_tag(:p, "Audio has not been implemented.")
    else
      raise "Don't know how to display content type '#{content_item.content_type}'!"
    end
  end

  def display_content_image(content_item)
    src = content_image_url(content_item)
    "<img id='content_item_img_#{((content_item.is_a? Integer)? content_item: content_item.id)}' src='#{src}' alt='Error displaying content'/>"
  end

  def content_thumbnail_url(content_item, width = nil, height = nil, only_path = true)
    content_image_url(content_item, width, height, "thumbnail", only_path)
  end

  def content_image_url(content_item, width = nil, height = nil, action = "image", only_path = true)
    if content_item.nil?
    elsif content_item.is_a?(Integer)
      content_item_id = content_item
    else
      content_item_id = content_item.id
    end

    parameters = {:controller => "cms/content_bucket",
            :action => action,
            :app_code => params[:app_code],
            :id => content_item_id,
            :only_path => true}
    parameters[:width] = width if !width.nil?
    parameters[:height] = height if !height.nil?
    url_for(parameters)
  end

end