namespace :project do

  namespace :maintainer do
    desc 'Set maintainer to owner (or to owners owner if owner is a group) to projects'
    task :set_to_owner => :environment do
      projects = Project.scoped
      count = projects.count
      say "Setting maintainer to all projects (#{count})"
      percent_per_batch = 100 * 1000 / count
      i = 1

      projects.find_in_batches do |batch|
        ActiveRecord::Base.transaction do
          batch.each do |proj|
            maintainer_id = (proj.owner_type == 'User') ? proj.owner_id : proj.owner.owner_id
            proj.maintainer_id = maintainer_id
            proj.save
          end
        end
        say "#{percent_per_batch * i}% done."
        i += 1
      end
      say "100% done"
    end
  end
  task :maintainer => 'maintainer:set_to_owner'

end