class HighlightsBlock < Block

  settings_items :images, :type => Array, :default => []
  settings_items :interval, :type => 'integer', :default => 4
  settings_items :shuffle, :type => 'boolean', :default => false
  settings_items :navigation, :type => 'boolean', :default => false

  before_save do |block|
    block.images = block.images.delete_if { |i| i[:image_id].blank? and i[:address].blank? and i[:position].blank? and i[:title].blank? }
    block.images.each do |i|
      i[:image_id] = i[:image_id].to_i
      i[:position] = i[:position].to_i
      begin
        file = UploadedFile.find(i[:image_id])
        i[:image_src] = file.public_filename
      rescue
        i[:image_src] = nil
      end
    end
  end

  def self.description
    _('Highlights')
  end

  def featured_images
    block_images = images.select{|i| !i[:image_src].nil? }.sort { |x, y| x[:position] <=> y[:position] }
    shuffle ? block_images.shuffle : block_images
  end

  def content
    block = self
    lambda do
      render :file => 'blocks/highlights', :locals => { :block => block }
    end
  end

  def folder_choices
    owner.image_galleries
  end

end