ama-team / ruby-entity-mapper

          class DateTimeType < Type

            def initialize

              super(DateTime)

              normalizer_block do |entity, *|

                entity.iso8601(3)

              end

              define_denormalizer

              define_factory

              enumerator_block do |*|

                ::Enumerator.new { |*| }

              end

              injector_block { |*| }

            end

            private

            def define_denormalizer

              denormalizer_block do |input, _, ctx|

                break input if input.is_a?(DateTime)

                input = input.to_s if input.is_a?(Symbol)

                break DateTime.iso8601(input, 3) if input.is_a?(String)

                if input.is_a?(Integer)

                  break DateTime.strptime(input.to_s, '%s')

                end

                singleton_class.send(:include, Mixin::Errors)

                message = 'String input expected (like ' \

                  "'2001-02-03T04:05:06.123+04:00'), " \

                  "#{input.class} received: #{input}"

                mapping_error(message, context: ctx)

              end

            end

            def define_factory

              factory_block do |_, _, ctx|

                singleton_class.send(:include, Mixin::Errors)

                message = 'DateTime type could not be instantiated directly, ' \

                  'it only supports normalization and denormalization'

                compliance_error(message, context: ctx)

              end

            end

            INSTANCE = new

          end