require 'pg'

require 'prune/prune_plugin'
require 'rm/plugins/davical'

class DavicalPrune < DavicalRm
  #
  # DAViCal only supports Postgres, so even if we ever are
  # database-agnostic, this plugin can't be.
  #
  include PrunePlugin


  def get_leftover_domains(db_domains)
    # DAViCal doesn't have a concept of domains. We could parse the
    # usernames to see what domains are present, but the point is
    # moot: all leftover users will be pruned anyway.
    return []
  end


  def get_leftover_users(db_users)
    # Get a list of all users who have logged in to DAViCal.
    davical_users = self.list_users()
    return davical_users - db_users
  end


end