Class: EvokToMqtt::Worker

Inherits:
Object
  • Object
show all
Defined in:
lib/evok-to-mqtt/worker.rb

Instance Method Summary collapse

Constructor Details

#initialize(evok_host, mqtt_host, mapper) ⇒ Worker

Returns a new instance of Worker.



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# File 'lib/evok-to-mqtt/worker.rb', line 10

def initialize(evok_host, mqtt_host, mapper)
  @evok_host = evok_host
  @mqtt_host = mqtt_host
  @mapper    = mapper
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/evok-to-mqtt/worker.rb', line 16

def run
  EM.run do
    @evok_ws  = WebSocket::EventMachine::Client.connect(:uri => "ws://#{@evok_host}:8080/ws")
    @evok_rpc = JSONRPC::Client.new("http://#{@evok_host}/rpc")
    @mqtt     = EventMachine::MQTT::ClientConnection.connect(@mqtt_host)

    @evok_ws.onmessage do |msg|
      data = JSON.parse(msg)
      data = [data] if data.is_a? Hash # temp is not in array in evok messages, but in hash..
      data.each do |event|
        next if !event.is_a?(Hash) || %w(wd ai ao).include?(event['dev']) # want just relay, input and temp, skip the rest for now (better to whitelist)
        puts "#{Time.now} Recieved message: #{event}"
        @mapper.process(@mqtt, event)
      end
    end

    # send commands to relay only for now, maybe do more lightweight not to subscribe to everything
    @mqtt.subscribe('#')
    @mqtt.receive_callback do |msg|
      begin
        data = JSON.parse(msg.payload)
      rescue => ex
        puts "Error: Received invalid message on the bus"
        p msg.payload
        data = {}
      end
      next unless data['action'] == 'cmd'
      circuit = data['circuit'] || @mapper.circuit_reverse_lookup('relay', msg.topic) || next
      puts "#{Time.now} Sending command #{msg.topic}: #{circuit} => #{data['value']}"
      @evok_rpc.relay_set(circuit, data['value'])
    end
  end
end