trema/pio

# frozen_string_literal: true

require 'bindata'
require 'forwardable'
require 'pio/open_flow/instruction'

module Pio
  module OpenFlow13
    # Resubmit to the table_id
    class GotoTable < OpenFlow::Instruction
      # OpenFlow 1.3.4 OFPIT_GOTO_TABLE instruction format
      class Format < BinData::Record
        endian :big

        uint16 :instruction_type, value: 1
        uint16 :instruction_length, value: 8
        uint8 :table_id
        bit24 :padding
        hide :padding
      end

      def self.read(raw_data)
        allocate.tap do |goto_table|
          goto_table.instance_variable_set :@format, Format.read(raw_data)
        end
      end

      extend Forwardable

      def_delegators :@format, :instruction_type
      def_delegators :@format, :instruction_length
      def_delegators :@format, :table_id
      def_delegators :@format, :to_binary_s
      def_delegator :@format, :to_binary_s, :to_binary

      def initialize(table_id)
        @format = Format.new(table_id: table_id)
      end
    end
  end
end