node-lox-mqtt-gateway/bin/lox-mqtt-gateway.js

Gateway for Loxone™ miniserver to communicate with mqtt broker

#!/usr/bin/env node

const lox_mqtt_gateway = require('../lib/index.js');

if (!process.env.NODE_CONFIG_DIR){
    process.env.NODE_CONFIG_DIR = __dirname+"/../config/";
}
var config = require("config");

var logger = lox_mqtt_gateway.Logger(config.get('winston'));
var app = new lox_mqtt_gateway.App(logger);
var mqtt_client = lox_mqtt_gateway.mqtt_builder(config.get('mqtt'), app);
var lox_client = lox_mqtt_gateway.WebSocketAPI(config.get('miniserver'), app);
var lox_mqtt_adaptor = undefined;

app.on('exit', function(code) {
    if (lox_mqtt_adaptor){
        lox_mqtt_adaptor.abort();
    }
});

function _update_event(uuid, value){
    if (lox_mqtt_adaptor){
        lox_mqtt_adaptor.set_value_for_uuid(uuid, value);
    }
};

lox_client.on('update_event_text', _update_event);
lox_client.on('update_event_value', _update_event);

lox_client.on('get_structure_file', function(data) {
    if (lox_mqtt_adaptor){
        lox_mqtt_adaptor.abort();
    }

    lox_mqtt_adaptor = new lox_mqtt_gateway.Adaptor(lox_mqtt_gateway.Structure.create_from_json(data,
        function(value) {
            logger.warn("MQTT Structure - invalid type of control", value);
        }
    ));

    mqtt_client.subscribe(lox_mqtt_adaptor.get_topic_for_subscription());

    lox_mqtt_adaptor.on('for_mqtt', function(topic, data){
        logger.debug("MQTT Adaptor - for mqtt: ", {topic: topic, data: data});
        mqtt_client.publish(topic, data);
    });
});

mqtt_client.on('connect', function(conack){
    if (!lox_client.is_connected()){
        lox_client.connect();
    }
});

mqtt_client.on('message', function(topic, message, packet) {
    if (!lox_mqtt_adaptor){
        return;
    }
    var action = lox_mqtt_adaptor.get_command_from_topic(topic, message.toString());

    app.logger.debug("MQTT Adaptor - for miniserver: ", {uuidAction: action.uuidAction, command: action.command});

    if (!config.miniserver.readonly){
        lox_client.send_cmd(action.uuidAction, action.command);
    }else{
        app.logger.debug("MQTT Adaptor - readonly mode");
    }
});