scotdalton/exlibris-aleph

module Exlibris
  module Aleph
    module Table
      module Reader
        class PatronCirculationPolicies < Base
          FILENAME = 'tab31'

          def initialize(admin_library)
            super(admin_library, FILENAME)
          end

          def all
            rows.map do |row|
              sub_library = sub_libraries.find do |sub_library|
                sub_library.code == row.sub_library_code
              end
              unless sub_library.nil?
                status = patron_statuses[admin_library].find do |patron_status|
                  patron_status.code == row.patron_status_code
                end
                if status.nil? && row.patron_status_code == '##'
                  status = Aleph::Patron::Status.new('##')
                end
                unless status.nil? 
                  identifier =
                    Aleph::Patron::CirculationPolicy::Identifier.new(status, sub_library)
                  privileges =
                    Aleph::Patron::CirculationPolicy::Privileges.new(row)
                  Aleph::Patron::CirculationPolicy.new(identifier, privileges)
                end
              end
            end.compact
          end

          private
          def sub_libraries
            @sub_libraries ||= tables_manager.sub_libraries
          end

          def patron_statuses
            @patron_statuses ||= tables_manager.patron_statuses
          end

          def tables_manager
            @tables_manager ||= Aleph::TablesManager.instance
          end
        end
      end
    end
  end
end