class Photo < Post
  require 'carrierwave/orm/mongomapper'
  include MongoMapper::Document
  mount_uploader :image, ImageUploader
  
  xml_accessor :remote_photo
  xml_accessor :caption
  xml_reader :album_id 

  key :album_id, ObjectId
  key :caption, String

   
  belongs_to :album, :class_name => 'Album'
  timestamps!

  validates_presence_of :album

  def self.instantiate(params = {})
    image_file = params[:user_file].first
    params.delete :user_file
    
    photo = Photo.new(params)
    photo.image.store! image_file
    photo.save
    photo
  end
  
  after_save :log_save_inspection 
  validates_true_for :album_id, :logic => lambda {self.validate_album_person}

  before_destroy :ensure_user_picture


  def validate_album_person
    album.person_id == person_id
  end

  def remote_photo
    @remote_photo ||= User.owner.url.chop + image.url
  end

  def remote_photo= remote_path
    @remote_photo = remote_path
    image.download! remote_path
    image.store!
  end

  def ensure_user_picture
    user = User.owner
    if user.profile.image_url == image.url(:thumb_medium)
      user.profile.update_attributes!(:image_url => nil)
    end
  end

  def thumb_hash
    {:thumb_url => image.url(:thumb_medium), :id => id, :album_id => album_id}
  end
end