# encoding: utf-8

require 'adhearsion/rayo/command_node'

module Adhearsion
  module Rayo
    module Command
      class Join < CommandNode
        register :join, :core

        VALID_DIRECTIONS = [:duplex, :send, :recv].freeze

        # @return [String] the call ID to join
        attribute :call_uri
        alias :call_id= :call_uri=

        # @return [String] the mixer name to join
        attribute :mixer_name

        # @param [#to_sym] other the direction in which media should flow. Can be :duplex, :recv or :send
        attribute :direction, Symbol
        def direction=(other)
          if other && !VALID_DIRECTIONS.include?(other.to_sym)
            raise ArgumentError, "Invalid Direction (#{other.inspect}), use: #{VALID_DIRECTIONS*' '}"
          end
          super
        end

        # @return [#to_sym] the method by which to negotiate media
        attribute :media, Symbol

        def rayo_attributes
          {
            'call-uri' => call_uri,
            'mixer-name' => mixer_name,
            'direction' => direction,
            'media' => media
          }
        end
      end
    end
  end
end