#app/uploaders/logo_image_uploader.rb
class LogoImageUploader < CarrierWave::Uploader::Base

  include CarrierWave::MiniMagick

  storage :file
 
  def store_dir 
    "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  end

  # process resize_to_fit: [800, 800]
  # process :crop_image

  version :large do
    process :crop_image
    process resize_to_fit: [800, 800]
    # resize_to_limit(600, 600)
  end

  version :medium do
    process :crop_image
    # process resize_to_fit: [600, 600]
    resize_to_limit(600, 600)
  end
  
  version :thumb do
    process :crop_image
    resize_to_fill(100, 100)
  end

  version :tiny, from_version: :thumb do
    process resize_to_fill: [20, 20]
  end
  
  def crop_image

    resize_to_limit(600, 600)

    unless $logo_crop_x.blank?
      manipulate! do |image|
      
        x = $logo_crop_x.to_f
        y = $logo_crop_y.to_f
        w = $logo_crop_w.to_f
        h = $logo_crop_h.to_f

        #img.crop "#{w}x#{h}+#{x}+#{y}"
        image.crop([[w, h].join('x'), [x, y].join('+')].join('+'))
      end
    end

  end

  def extension_white_list
    %w(jpg jpeg gif png)
  end

  def filename
    "#{secure_token(10)}.#{file.extension}" if original_filename.present?
  end

  protected
  def secure_token(length = 16)
    return SecureRandom.hex(length / 2)
  end

end