YaleSTC/shifts

module Paperclip
  class Cropper < Thumbnail
    def transformation_command
      if crop_command
        original_command = super
        if original_command.include?('-crop')
          original_command.delete_at(super.index('-crop') + 1)
          original_command.delete_at(super.index('-crop'))
        end
        crop_command + original_command
      else
        super
      end
    end

    def crop_command
      target = @attachment.instance
      if target.cropping?
        ["-crop", "#{target.crop_w}x#{target.crop_h}+#{target.crop_x}+#{target.crop_y}"]
      end
    end
  end
end