class Wrapper < ActiveRecord::Base
  
  TypesWrapper = [ 'application/x-docx',
      'application/x-doc', 'application/x-rtf',
      'application/x-pps',  'application/x-ppt', 'application/x-pptx',
      'application/x-xls',  'application/x-xlsx','application/x-csv',
      'application/x-msg',
      'application/x-zip', 
      'text/plain',  
      'application/x-pdf','application/pdf',
      'application/mp3',  'application/x-mp3',  'audio/mpeg',   'audio/mp3',
      'image/gif',        'image/png',          'image/x-png',  'image/jpeg', 'image/jpg',
      'video/mpeg',       'application/x-flv',  'video/quicktime' ,'application/x-wmv',
      'application/x-avi']
  
  acts_as_commentable
  acts_as_textiled :name, :info
  belongs_to :user

	has_attached_file :data,
    :url => "/:zfull_path",
    :path => ":rails_root/public/:zfull_path",
    :whiny => true

  
  attr_protected :data_file_name, :data_content_type, :data_size
  
  before_post_process :validate_processor
  
  validates_attachment_size :data, :less_than => 10.megabytes
  validates_attachment_content_type :data, :content_type => TypesWrapper
  

  def proc_name
    type, detail = data.content_type.scan(/^(video|audio|application|text|image)\/(.*?)$/).flatten
    case type
      when 'image'          then 'image'
      when 'video','audio'  then type
      when 'text'           then 'text'
      when 'application'
        case detail
          when /pdf$/              then 'pdf'
          when /mp3$/              then 'audio'
          when /mov|flv|wmv|avi$/  then 'video'
          when /csv|xls.?$/        then 'excel'
          when /doc.?|txt|rtf$/    then 'word'
          when /pp..?/             then 'powerpoint'
          when 'msg'               then 'message'
          when /^(?:x-)?zip$/      then 'zip'
          else 'document'
        end
    end
  end
  
  def validate_processor
    case proc_name
      when "image"    then 
         data.styles[:small] = { :geometry => "64x64>",   :format => "png", :processors => "thumbnail" }
         data.styles[:thumb] = { :geometry => "128x128#", :format => "png", :processors => "thumbnail" }
         data.styles[:large] = { :geometry => "300x400#", :format => "png", :processors => "thumbnail" }
      when "document",'excel','word','powerpoint','text'
         data.styles[:small] = { :geometry => "64x64>",   :format => "png", :processors => "empty" }
         data.styles[:thumb] = { :geometry => "128x128#", :format => "png", :processors => "empty" }
         data.styles[:large] = { :geometry => "300x400#", :format => "png", :processors => "empty" }
      when "zip"
         data.styles[:small] = { :geometry => "64x64>",   :format => "png", :processors => "empty" }
         data.styles[:thumb] = { :geometry => "128x128#", :format => "png", :processors => "empty" }
         data.styles[:large] = { :geometry => "300x400#", :format => "png", :processors => "zip_info" }
      when "video"
         data.styles[:small] = { :geometry => "64x64>",   :format => "png", :processors => "empty" }
         data.styles[:thumb] = { :geometry => "128x128#", :format => "png", :processors => "video_thumb" }
         data.styles[:large] = { :geometry => "300x400#", :format => "flv", :processors => "video_convert"}
      when "audio"
         data.styles[:small] = { :geometry => "64x64>",   :format => "png", :processors => "audio_tag" }
         data.styles[:thumb] = { :geometry => "128x128#", :format => "png", :processors => "empty" }
         data.styles[:large] = { :geometry => "300x400#", :format => "png", :processors => "empty" }       
      when "pdf"
         data.styles[:small] = { :geometry => "64x64>",   :format => "png", :processors => "empty" }
         data.styles[:thumb] = { :geometry => "128x128#", :format => "png", :processors => "pdf" }
         data.styles[:large] = { :geometry => "300x400#", :format => "png", :processors => "pdf" }  
    end 
    true
  end
  
end