require 'mini_magick'

class ImageUploader < FileUploader
  include CarrierWave::MiniMagick

  def path version=nil
    (version && version != :original) ? versions[version].path : super()
  end

  version :icon, if: :create_versions?, from_version: :small do
    process resize_and_pad: [16, 16]
  end
  version :small, if: :create_versions?, from_version: :medium do
    process resize_to_fit: [75, 75]
  end
  version :medium, if: :create_versions? do
    process resize_to_fit: [200, 200]
  end
  version :large, if: :create_versions? do
    process resize_to_fit: [500, 500]
  end

  def identifier
    full_filename(super())
  end

  # add 'original' if no version is given
  def full_filename for_file
    name = super(for_file)
    if version_name
      name
    else
      parts = name.split '.'
      "#{parts.shift}-original.#{parts.join('.')}"
    end
  end
end