namespace :sufia do

desc "Reports on and optionally removes empty batches that contain no associated files"
task :empty_batches, [:remove] => :environment do |t, args|
  option = args.to_hash.fetch(:remove, "keep")
  Batch.all.each do |batch|
    if batch.generic_files.empty?
      print "#{batch.id} contains no files - "
      if option == "remove"
        batch.destroy
        puts "deleted"
      else
        puts "to delete, rerun with the remove option: rake sufia:empty_batches[remove]"
      end
    end
  end
end

end