Class: BWA::Server

Inherits:
Object
  • Object
show all
Defined in:
lib/bwa/server.rb

Instance Method Summary collapse

Constructor Details

#initialize(port = 4257) ⇒ Server

Returns a new instance of Server.



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# File 'lib/bwa/server.rb', line 9

def initialize(port = 4257)
  @listen_socket = TCPServer.open(port)
  @status = Messages::Status.new
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/bwa/server.rb', line 14

def run
  loop do
    socket = @listen_socket.accept
    run_client(socket)
  end
end

#run_client(socket) ⇒ Object 



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# File 'lib/bwa/server.rb', line 28

def run_client(socket)
  BWA.logger.info "Received connection from #{socket.remote_address.inspect}"

  send_status(socket)
  loop do
    if socket.wait_readable(1)
      data = socket.recv(128)
      break if data.empty?

      begin
        message = Message.parse(data)
        BWA.logger.info BWA.raw2str(message.raw_data)
        BWA.logger.info message.inspect

        case message
        when Messages::ConfigurationRequest
          send_configuration(socket)
        when Messages::ControlConfigurationRequest
          (message.type == 1) ? send_control_configuration(socket) : send_control_configuration2(socket)
        when Messages::SetTargetTemperature
          temperature = message.temperature
          temperature /= 2.0 if @status.temperature_scale == :celsius
          @status.target_temperature = temperature
        when Messages::SetTemperatureScale
          @status.temperature_scale = message.scale
        when Messages::ToggleItem
          case message.item
          when :heating_mode
            @status.heating_mode = ((@status.heating_mode == :rest) ? :ready : :rest)
          when :temperature_range
            @status.temperature_range = ((@status.temperature_range == :low) ? :high : :low)
          when :pump1
            @status.pump1 = (@status.pump1 + 1) % 3
          when :pump2
            @status.pump2 = (@status.pump2 + 1) % 3
          when :light1
            @status.light1 = !@status.light1
          end
        end
      rescue BWA::InvalidMessage => e
        BWA.logger.warn e.message
        BWA.logger.warn BWA.raw2str(e.raw_data)
      end
    else
      send_status(socket)
    end
  end
end

#send_configuration(socket) ⇒ Object 



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# File 'lib/bwa/server.rb', line 82

def send_configuration(socket)
  send_message(socket,
               "\x0a\xbf\x94\x02\x02\x80\x00\x15\x27\x10\xab\xd2\x00\x00\x00\x00\x00\x00\x00\x00\x00\x15\x27\xff\xff\x10\xab\xd2") # rubocop:disable Layout/LineLength
end

#send_control_configuration(socket) ⇒ Object 



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# File 'lib/bwa/server.rb', line 87

def send_control_configuration(socket)
  send_message(socket,
               "\x0a\xbf\x24\x64\xdc\x11\x00\x42\x46\x42\x50\x32\x30\x20\x20\x01\x3d\x12\x38\x2e\x01\x0a\x04\x00")
end

#send_control_configuration2(socket) ⇒ Object 



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# File 'lib/bwa/server.rb', line 92

def send_control_configuration2(socket)
  send_message(socket, "\x0a\xbf\x2e\x0a\x00\x01\xd0\x00\x44")
end

#send_message(socket, message) ⇒ Object 



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# File 'lib/bwa/server.rb', line 21

def send_message(socket, message)
  length = message.length + 2
  full_message = "#{length.chr}#{message}"
  checksum = CRC.checksum(full_message)
  socket.send("\x7e#{full_message}#{checksum.chr}\x7e".b, 0)
end

#send_status(socket) ⇒ Object 



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# File 'lib/bwa/server.rb', line 77

def send_status(socket)
  BWA.logger.info "sending #{@status.inspect}"
  socket.send(@status.serialize, 0)
end