class Sequencer
  class Unit
    module Import
      module Ldap
        module Users
          module Lost
            class Ids < Sequencer::Unit::Base
              uses :found_ids, :external_sync_source, :model_class
              provides :lost_ids

              def process
                state.provide(:lost_ids, active_ids - found_ids)
              end

              def active_ids
                ExternalSync.joins('INNER JOIN users ON (users.id = external_syncs.o_id)')
                            .where(
                              source: external_sync_source,
                              object: model_class.name,
                              users:  {
                                active: true
                              }
                            )
                            .pluck(:o_id)
              end
            end
          end
        end
      end
    end
  end
end