demarches-normaliennes/app/uploaders/procedure_logo_uploader.rb

class ProcedureLogoUploader < BaseUploader
  def root
    Rails.root.join("public")
  end

  # Choose what kind of storage to use for this uploader:
  if Rails.application.secrets.fog[:enabled]
    storage :fog
  else
    storage :file
  end

  # Override the directory where uploaded files will be stored.
  # This is a sensible default for uploaders that are meant to be mounted:
  def store_dir
    if !Rails.application.secrets.fog[:enabled]
      "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
    end
  end

  # Add a white list of extensions which are allowed to be uploaded.
  # For images you might use something like this:
  def extension_whitelist
    ['jpg', 'jpeg', 'png']
  end

  def filename
    if file.present?
      if original_filename.present? || model.logo_secure_token
        if Rails.application.secrets.fog[:enabled]
          filename = "#{model.class.to_s.underscore}-#{secure_token}.#{file.extension&.downcase}"
        else
          filename = "logo-#{secure_token}.#{file.extension&.downcase}"
        end
      end
      filename
    end
  end

  private

  def secure_token
    model.logo_secure_token ||= generate_secure_token
  end

  def generate_secure_token
    SecureRandom.uuid
  end
end