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path: root/lib/action_cable/remote_connection.rb
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module ActionCable
  class RemoteConnection
    class InvalidIdentifiersError < StandardError; end

    include Connection::Identifier

    def initialize(server, ids)
      @server = server
      set_identifier_instance_vars(ids)
    end

    def disconnect
      message = { type: 'disconnect' }.to_json
      redis.publish(internal_redis_channel, message)
    end

    def identifiers
      @server.connection_identifiers
    end

    def redis
      @redis ||= Redis.new(@server.redis_config)
    end

    private
      def set_identifier_instance_vars(ids)
        raise InvalidIdentifiersError unless valid_identifiers?(ids)
        ids.each { |k,v| instance_variable_set("@#{k}", v) }
      end

      def valid_identifiers?(ids)
        keys = ids.keys
        identifiers.all? { |id| keys.include?(id) }
      end
  end
end