class UploadedFile < ActiveRecord::Base
  include PublishedObject::InitMethod
  include PublishedObject::BasicStates
  
  belongs_to :user
  belongs_to :storage, :polymorphic => true
  acts_as_nested_set :scope => [:user_id, :storage_id, :storage_type]

  def to_param
    self.zip
  end

  has_attached_file :file,
                    :url => Project::FILE_URL,
                    :default_url=>Project::FILE_DEFAULT,
                    :styles => { :normal => '600x400#', :std => '270x180#', :small => '100x100#', :mini =>  '50x50#', :micro => '25x25#' },
                    :convert_options => { :all => "-strip" }

  validates :file_file_name, :uniqueness => {:message => I18n.translate('uploaded_files.uniqueness.file_name'), :scope=>[:user_id, :storage_type, :storage_id]}
  validates_attachment_size :file, :in => 10.bytes..2.megabytes, :message=>I18n.translate('uploaded_files.attachment_size')

  # FILTERS
  before_validation :generate_file_name
  before_destroy    :update_storage
  after_create      :update_storage
  after_update      :update_storage

  def update_storage
    self.storage.save
  end

  def generate_file_name
    #file_name=  self.title
    #self.title= self.file_title_filter(self.title)
    extension=  File.extname(self.base_file_name).downcase
    file_name=  File.basename(self.base_file_name, extension)
    file_name=  self.file_name_filter(file_name)
    self.file.instance_write(:file_name, "#{file_name}#{extension}")
  end

  # functions for FILTERS
  # Russian.translit(' _ Иван _  Иванов  ^@#$&№%*«»!?.,:;{}()<>_+|/~ Test     ----').text_symbols2dash.underscore2dash.spaces2dash.strip_dashes.downcase
  # => "ivan-ivanov-test"
  def file_name_filter file_name
    return Russian.translit(file_name).text_symbols2dash.remove_quotes.underscore2dash.spaces2dash.strip_dashes.downcase
  end

  # '«Олимпиада для школьников» и новый год + снегурочка & Dead Moро$O;ff!!!'.text_symbols2dash.spaces2dash.strip_dashes.dashes2space
  # => "Олимпиада для школьников и новый год снегурочка Dead Moро O ff"
  def file_title_filter title
    return title.text_symbols2dash.remove_quotes.spaces2dash.strip_dashes.dashes2space
  end

  # HELPERS
  def full_filepath
    Project::ADDRESS + self.file.url.split('?').first
  end

  def to_textile_link
    "\"#{self.file_file_name}\":#{self.full_filepath}"
  end

  # FILE INFO METHODS
  def base_file_name
    self.file_file_name.to_s
  end

  def base_file_type
    self.file.content_type
  end

  # FILE TYPES METHODS
  def is_image?
    ['.gif','.jpeg','.jpg','.pjpeg','.png','.bmp'].include?(File.extname(base_file_name))
  end
  
  def need_thumb?
    is_image?
  end
  
  def is_doc?
    ['.doc', '.docx'].include?(File.extname(base_file_name))
  end
  
  def is_txt?
    ['text/plain'].include?(base_file_type)
  end
  
  def is_ppt?
    ['application/vnd.ms-powerpoint', 'application/x-ppt'].include?(base_file_type)
  end
  
  def is_xls?
    ['application/vnd.ms-excel'].include?(base_file_type)
  end
  
  def is_pdf?
    ['application/pdf'].include?(base_file_type)
  end  
  
  def is_psd?
    ['.psd'].include?(File.extname(base_file_name))
  end
  
  def is_media?
    ['video/x-msvideo','audio/wav','application/x-wmf','video/mpeg','audio/mpeg','audio/mp3'].include?(base_file_type)
  end
  
  def is_arch?
    ['.zip','.rar','.gz','.tar'].include?(File.extname(base_file_name))
  end

end