module Epp
  class Response
    class Result
      class Code
        attr_reader :value

        KEY_TO_VALUE = {
          completed_successfully: 1000,
          completed_successfully_action_pending: 1001,
          completed_without_address: 1100,
          completed_successfully_no_messages: 1300,
          completed_successfully_ack_to_dequeue: 1301,
          completed_successfully_ending_session: 1500,
          unknown_command: 2000,
          syntax_error: 2001,
          use_error: 2002,
          required_parameter_missing: 2003,
          parameter_value_range_error: 2004,
          parameter_value_syntax_error: 2005,
          unimplemented: 2101,
          billing_failure: 2104,
          object_is_not_eligible_for_renewal: 2105,
          object_is_not_eligible_for_transfer: 2106,
          authorization_error: 2201,
          invalid_authorization_information: 2202,
          object_does_not_exist: 2303,
          object_status_prohibits_operation: 2304,
          object_association_prohibits_operation: 2305,
          parameter_value_policy_error: 2306,
          data_management_policy_violation: 2308,
          command_failed: 2400,
          authentication_error_server_closing_connection: 2501,
          session_limit_exceeded_server_closing_connection: 2502,
        }.freeze
        private_constant :KEY_TO_VALUE

        DEFAULT_DESCRIPTIONS = {
          1000 => 'Command completed successfully',
          1001 => 'Command completed successfully; action pending',
          1100 => 'Command completed successfully; Postal address data discarded',
          1300 => 'Command completed successfully; no messages',
          1301 => 'Command completed successfully; ack to dequeue',
          1500 => 'Command completed successfully; ending session',
          2000 => 'Unknown command',
          2001 => 'Command syntax error',
          2002 => 'Command use error',
          2003 => 'Required parameter missing',
          2004 => 'Parameter value range error',
          2005 => 'Parameter value syntax error',
          2101 => 'Unimplemented command',
          2104 => 'Billing failure',
          2105 => 'Object is not eligible for renewal',
          2106 => 'Object is not eligible for transfer',
          2201 => 'Authorization error',
          2202 => 'Invalid authorization information',
          2303 => 'Object does not exist',
          2304 => 'Object status prohibits operation',
          2305 => 'Object association prohibits operation',
          2306 => 'Parameter value policy error',
          2308 => 'Data management policy violation',
          2400 => 'Command failed',
          2501 => 'Authentication error; server closing connection',
          2502 => 'Session limit exceeded; server closing connection',
        }.freeze
        private_constant :DEFAULT_DESCRIPTIONS

        def self.codes
          KEY_TO_VALUE
        end

        def self.default_descriptions
          DEFAULT_DESCRIPTIONS
        end

        def self.key(key)
          new(KEY_TO_VALUE[key])
        end

        def initialize(value)
          value = value.to_i
          raise ArgumentError, "Invalid value: #{value}" unless KEY_TO_VALUE.value?(value)
          @value = value
        end

        def ==(other)
          value == other.value
        end
      end
    end
  end
end