class Pettanr.Picture extends Peta.Content
  
  @singular: () ->
    'Picture'
  
  @plural: () ->
    'Pictures'
  
  defaults: {
    id: null
  } 
  
  @trace_routes: () ->
    {
      resource_picture: ['resource_picture_picture', 'resource_picture']
    }
  
  is_visible: (operators = Pettanr.cache.operators) ->
    return true
  
  filename: () ->
    @get('id') + '.' + @get('ext')
  
  gifname: () ->
    @get('id') + '.gif'
  
  mime_type: () ->
    'image/' + @get('ext')
  
  r_url: (subdir = null) ->
    q = if subdir
      '?subdir=' + subdir
    else
      ''
    '/pictures/' + @filename() + q
  
  alt_name: () ->
    lgn = Pettanr.to_s(@license().license_group().get('caption'))
    ln = Pettanr.to_s(@license().get('caption'))
    lgn + '[' + ln + ']'
  
  symbol_option: (context, options) ->
    @retrieve(this, {
      success: (symbol_item) => 
        options.success.call(context, symbol_item.symbol_file())
      fail: (response, opt) =>
        options.fail.call(context, response, opt)
    })
  
  is_enable: () ->
    if @head().resource_picture()
      true
    else
      false
  
  @head: (opid) ->
    #Picture.find( conditions => ['original_picture_id = ?', opid], :order => 'pictures.revision desc')
  
  head: () ->
    Picture.head(@get('original_picture_id'))
  
  is_head: () ->
    #this == @head()
  
  subdirs: () ->
    if @license_extend().reverse < 0
      ['']
    else
      ['', 'v', 'h', 'vh']
  
  is_showable: (operators = Pettanr.cache.operators) ->
    return false if not @original_picture()
    return true if @is_own(operators)
    #@is_enable() and @is_head()
  
  initialize: (attr = {}, options = {}) ->
    super(attr, options)