Node_Helper.js for MMM-ALEXACONTROL

/**
 * Magic Mirror
 * Node Helper: MMM-AlexaControl
 * 
 * By JoChef2
 * MIT Licensed.
 */

var NodeHelper = require("node_helper");
var FauxMo = require('node-fauxmo');
var pm2 = require('pm2');
const exec = require("child_process").exec;

module.exports = NodeHelper.create({
	
	start: function () {
        console.log('MMM-AlexaControl helper, started...');
        this.config = null;
        this.setDevicesCounter = 0;  //  Counter for only one node_helper start look line 225 
    },
	
    formattedName: function(devname,actionString){
        var result=actionString
        if(devname != undefined){
            var s = actionString.split(' ')
            if(s.length>1)
                s.splice(1,0,devname)
            else
                s.unshift(devname)
            result = s.join(' ')
        }        
        return result;
    },
    
	setDevices: function(){
        _this = this;

        cD = this.customDevices(this.config.devices);
        nD = this.notificationDevices(cD, this.config.notifications);
        coD = this.commandDevices(nD, this.config.commands)
        pD = this.pageDevices(coD);
        mD = this.menuDevices(pD);
        //console.log(pD);
        //console.log(mD);

        fauxMoPages = new FauxMo(mD);       // creates fauxmo devices
    },

    customDevices : function(customD){      //  creates your custom devices from config
        _this = this
        for(i = 0; i < Object.keys(customD.devices).length; i++){
            if(customD.devices[i].port === undefined){
                customD.devices[i].port = _this.config.startPort + 30 + i;
            }
            customD.devices[i].handler = new Function('action', customD.devices[i].handler)
        }
        return customD;
    },

    notificationDevices: function(notificationD, notifications){    //  creates your notification devices
        _this = this

        counter = 0 + Object.keys(notificationD.devices).length        
        _this.n = []

        for(i = 0; i < Object.keys(notifications).length; i++){
            device = {}
            device.name = _this.formattedName(_this.translations["deviceName"],notifications[i].name)
            if(notifications[i].port === undefined){
                device.port = _this.config.startPort + 50 + i
            }else{
                device.port = notifications[i].port
            }
            if(notifications[i].OnOff){
                _this.n[i] = notifications[i].notification
                device.handler = new Function('action', 'if(action === 1){_this.sendSocketNotification("CUSTOM",' + JSON.stringify(_this.n[i][0]) + ')}else{_this.sendSocketNotification("CUSTOM",' + JSON.stringify(_this.n[i][1]) + ')}')
            }else{
                _this.n[i] = notifications[i].notification
                device.handler = new Function('action', '_this.sendSocketNotification("CUSTOM",' + JSON.stringify(_this.n[i]) + ')')
            }
            notificationD.devices[i + counter] = device
        }
        return notificationD;
    }, 

    commandDevices: function(commandD, commands){
        _this = this

        counter = 0 + Object.keys(commandD.devices).length        
        _this.n = []
        _this.opts = { timeout: 8000 };
        _this.exec = exec

        for(i = 0; i < Object.keys(commands).length; i++){
            device = {}
            device.name = _this.formattedName(_this.translations["deviceName"],commands[i].name)
            if(commands[i].port === undefined){
                device.port = _this.config.startPort + 75 + i
            }else{
                device.port = commands[i].port
            }
            _this.n[i] = commands[i].command
            if(commands[i].OnOff){
                device.handler = new Function('action', 'if(action === 1){_this.exec(' + JSON.stringify(_this.n[i][0]) + '), _this.opts, (error, stdout, stderr) => {_this.checkForExecError(error, stdout, stderr); }}else{_this.exec(' + JSON.stringify(_this.n[i][1]) + '), _this.opts, (error, stdout, stderr) => {_this.checkForExecError(error, stdout, stderr); }}')
            }
            else{
                device.handler = new Function('action', 'if(action === 1){_this.exec(' + JSON.stringify(_this.n[i]) + '), _this.opts, (error, stdout, stderr) => {_this.checkForExecError(error, stdout, stderr); }}')
            }
            commandD.devices[i + counter] = device
        }
        return commandD;
    },

    pageDevices: function(pageD){      //  creates your page devices
        _this = this;

        counter = 0 + Object.keys(pageD.devices).length
        this.pPort = _this.config.startPort

        if(_this.config.pages > 0){
            for(i = 0; i < _this.config.pages; i++){
                device = {}
                device.name = _this.formattedName(_this.translations["deviceName"],_this.translations["page"] + (i + 1))
                device.port = _this.pPort - 100
                device.handler = new Function('action', `_this.sendSocketNotification("PAGE_CHANGED", ` + i +`)`)

                pageD.devices[i + counter] = device
                this.pPort++
            }
        }
        return pageD
    },

    menuDevices: function(menuD){       //  create your devices to control the Mirror and pi
        _this = this;
        var opts = { timeout: 8000 };
        //console.log("menu device ")
        counter = 0 + Object.keys(menuD.devices).length

        if(this.config.refresh){
            device = {}
            device.name = _this.formattedName(_this.translations["deviceName"],_this.translations["refresh"])
            device.port = _this.config.startPort
            device.handler = function(action) {_this.sendSocketNotification("ACTION", "refresh")}

            menuD.devices[counter] = device;
            counter++;
        }
        _this.config.startPort++

        if(this.config.restart){        // only with PM2
            device = {}
            device.name = _this.formattedName(_this.translations["deviceName"],_this.translations["restart"])
            device.port = _this.config.startPort
            device.handler = function(action) {
                pm2.connect((err) => {
                    if (err) {
                        console.error(err);
                    }
        
                    console.log("Restarting PM2 process: " + _this.config.pm2ProcessName);
                    pm2.restart(_this.config.pm2ProcessName, function(err, apps) {
                        pm2.disconnect();
                        if (err) { console.log(err); }
                    });
                });
            }
            
            menuD.devices[counter] = device;
            counter++;
        }
        _this.config.startPort++
        
        if(this.config.stop){        // only with PM2
            device = {}
            device.name = _this.formattedName(_this.translations["deviceName"],_this.translations["stop"])
            device.port = _this.config.startPort
            device.handler = function(action) {
                pm2.connect((err) => {
                    if (err) {
                        console.error(err);
                    }
        
                    console.log("Stopping PM2 process: " + _this.config.pm2ProcessName);
                    pm2.stop(_this.config.pm2ProcessName, function(err, apps) {
                        pm2.disconnect();
                        if (err) { console.log(err); }
                    });
                });
            }

            menuD.devices[counter] = device;
            counter++;
        }
        _this.config.startPort++
        
        if(this.config.reboot){        //reboot the pi
            device = {}
            device.name = _this.formattedName(_this.translations["deviceName"],_this.translations["reboot"])
            device.port = _this.config.startPort
            device.handler = function(action) {
                exec("sudo shutdown -r now", opts, (error, stdout, stderr) => {
                     _this.checkForExecError(error, stdout, stderr); 
                    });
                }
            menuD.devices[counter] = device;
            counter++;
        }
        _this.config.startPort++
        
        if(this.config.shutdown){        // shutdwon the pi
            device = {}
            device.name = _this.formattedName(_this.translations["deviceName"],_this.translations["shutdown"])
            device.port = _this.config.startPort
            device.handler = function(action) {
                exec("sudo shutdown -h now", opts, (error, stdout, stderr) => {
                    _this.checkForExecError(error, stdout, stderr); 
                });
            }           
            menuD.devices[counter] = device;
            counter++;
        }
        _this.config.startPort++

        /**
         * for me worked only vcgencmd display_power 0 and vcgencmd display_power 1
         * probably for you work tvservice --off and tvservice --preferred
         * test it in terminal if you aren't sure
         */
        
        if(this.config.monitorToggle){ 
        	console.log("monitorToggle requested")
            device = {}
            device.name = _this.formattedName(_this.translations["deviceName"],_this.translations["monitor"])
            device.port = _this.config.startPort
            if(this.config.vcgencmd =='vcgencmd'){
                device.handler = function(action) {     
                    if(action === 1){
                        exec("vcgencmd display_power 1", opts, (error, stdout, stderr) => {
                            _this.checkForExecError(error, stdout, stderr); 
                        });
                    }if(action === 0){
                        exec("vcgencmd display_power 0", opts, (error, stdout, stderr) => {
                            _this.checkForExecError(error, stdout, stderr); 
                        });
                    }
                }
            }
            else if(this.config.vcgencmd =='tvservice'){
                device.handler = function(action) {     
                    if(action === 1){
                        exec("tvservice --preferred", opts, (error, stdout, stderr) => {
                            _this.checkForExecError(error, stdout, stderr);
                        });
                    }if(action === 0){
                        exec("tvservice --off", opts, (error, stdout, stderr) => {
                            _this.checkForExecError(error, stdout, stderr);
                        });
                    }
                }
            }
            else if(this.config.vcgencmd =='cec-client'){
                device.handler = function(action) {     
                    if(action === 1){
                        exec("echo \'on "+ _this.config.cecAddress +"\' | cec-client -s -d 1", opts, (error, stdout, stderr) => {
                            _this.checkForExecError(error, stdout, stderr);
                        });
                    }if(action === 0){
                        exec("echo \'standby "+ _this.config.cecAddress +"\' | cec-client -s -d 1", opts, (error, stdout, stderr) => {
                            _this.checkForExecError(error, stdout, stderr);
                        });
                    }
                }
            }
            else if(this.config.vcgencmd =='hide'){
            	console.log("configuring toggle with hide")
            	device.handler = function(action) {     
            		console.log("received monitor toggle with hide action="+action)
           	 		_this.sendSocketNotification('MONITOR_ACTION', action?"SLEEP_WAKE":"SLEEP_HIDE")
          		}	
            }
            else{
                device.handler = function(action){
                    console.log("Please configure the option vcgencmd")
                }
            }
            menuD.devices[counter] = device;
            counter++;
        }
        _this.config.startPort++

        if(this.config.usb){        // toggle usb power of your pi
            device = {}
            device.name = _this.formattedName(_this.translations["deviceName"],_this.translations["usb"])
            device.port = _this.config.startPort
            device.handler = function(action) {
                if(action === 0){
                    exec("echo '1-1' |sudo tee /sys/bus/usb/drivers/usb/unbind", opts, (error, stdout, stderr) => {
                        _this.checkForExecError(error, stdout, stderr); 
                    });
                }
                else{
                    exec("echo '1-1' |sudo tee /sys/bus/usb/drivers/usb/bind", opts, (error, stdout, stderr) => {
                        _this.checkForExecError(error, stdout, stderr); 
                    });
                }
            }           
            menuD.devices[counter] = device;
            counter++;
        }
        _this.config.startPort++
        return menuD; 
    },

  /*  monitorOff: function(){
        var opts = { timeout: 8000 };
        if(this.config.vcgencmd){
            exec("vcgencmd display_power 0", opts, (error, stdout, stderr) => {
                _this.checkForExecError(error, stdout, stderr); 
            });
        }else{
            exec("tvservice --off", opts, (error, stdout, stderr) => {
                _this.checkForExecError(error, stdout, stderr);
            });
        }
    }, */

    checkForExecError: function(error, stdout, stderr) {
        if (stderr) {
            console.log('stderr: "' + stderr + '"');
            return 1;
        }
        if (error !== null) {
            console.log('exec error: ' + error);
            return 1;
        }
        return 0;
    },
    
	socketNotificationReceived: function(notification, payload) {
		if(notification === "SET_DEVICE"){      //  set all your devices
            this.config = payload;
            if(this.setDevicesCounter === 0){   //  set your devices only the first time a 
                this.setDevices();              //  notification is received
                this.setDevicesCounter++;
            }
        }
        if(notification === "TRANSLATIONS"){    //  get translations and put them in an array
            this.translations = [];            
            this.translations = payload;
		}
	}	
});

MMM- AlexaControl config.js

/**
 * Magic Mirror
 * Module: MMM-AlexaControl
 * 
 * By JoChef2
 * MIT Licensed.
 */

Module.register("MMM-AlexaControl",{
     
    defaults:{
        image: true,    //  shows the image
        height: 265,    // heigth of the image
        width: 265,     // width of the image
        pages: 0,       //  number off pages in MMM-Pages module. 0 means you doesn't use it
        devices: {      //  empty object for your custom devices
            devices: []
        },
        notifications: [],  //  empty array for your notification devices
        commands: [],       // empty array for your command devices
        startPort: 11000,   //  the lowest used port
        refresh: true,      //  refresh your Mirror
        restart: true,      //  restart your Mirror with pm2
        stop: true,         //  stops your Mirror with pm2
        reboot: false,      //  reboot your pi
        shutdown: false,    //  shutdown your pi
        pm2ProcessName: "mm",  //  name of your pm2 process
        monitorToggle: true,   //  switch your monitor on and off
        vcgencmd: 'vcgencmd',  //  command you use for monitor toggle
        cecAddress: "0.0.0.0", //  Address for the cec-client
        usb: false          // toggle usb power of your pi
    },

    getTranslations: function(){            // add more translations
        return {
            en: "translations/en.json",
            de: "translations/de.json"
        }
    },

    start: function(){
        Log.log('Starting module: ' + this.name);

        // send all translations to node_helper
        this.sendSocketNotification('TRANSLATIONS', {"monitor": this.translate("MONITOR"), "shutdown": this.translate("SHUTDOWN"), "reboot": this.translate("REBOOT"), "page": this.translate("PAGE"), "refresh": this.translate("REFRESH"), "restart": this.translate("RESTART"), "stop": this.translate("STOP"), "usb": this.translate("USB"), "deviceName":this.translate(this.config.deviceName)});
        this.sendSocketNotification('SET_DEVICE', this.config);  // send the config to node_helper
    },

    getDom: function(){             // returns only an image or an empty div (necessary for MMM-Pages)
        if(this.config.image){
            let img = document.createElement("img");
            img.classList = "img";
            img.src = "MMM-AlexaControl/AlexaLogoGrey.png";
            img.height = this.config.height;
            img.width = this.config.width;
            return img;
        }else{
            return document.createElement("div");
        }
    },

    socketNotificationReceived: function(notification, payload) {
        if(notification === "PAGE_CHANGED"){              //  change pages of MMM-Pages
            this.sendNotification("PAGE_CHANGED", payload);
        }
        if(notification === "ACTION"){                    //  refresh the Mirror
            if(payload === "refresh"){
                window.location.reload(true);
            }
        } 
        if(notification === "SELFIE_SHOOT"){
            this.sendNotification("SELFIE_SHOOT");  //  send any notification to any module
        }
        if(notification =='MONITOR_ACTION'){
            Log.log('RECEIVE monitor NOTIFICATION='+payload)
            this.sendNotification(notification,payload)
        }
    }
 });

Config.js

/* Magic Mirror Config Sample
 *
 * By Michael Teeuw https://michaelteeuw.nl
 * MIT Licensed.
 *
 * For more information on how you can configure this file
 * see https://docs.magicmirror.builders/getting-started/configuration.html#general
 * and https://docs.magicmirror.builders/modules/configuration.html
 */
let config = {
	address: "localhost", 	// Address to listen on, can be:
							// - "localhost", "127.0.0.1", "::1" to listen on loopback interface
							// - another specific IPv4/6 to listen on a specific interface
							// - "0.0.0.0", "::" to listen on any interface
							// Default, when address config is left out or empty, is "localhost"
	port: 8080,
	basePath: "/", 	// The URL path where MagicMirror is hosted. If you are using a Reverse proxy
					// you must set the sub path here. basePath must end with a /
	ipWhitelist: ["127.0.0.1", "::ffff:127.0.0.1", "::1"], 	// Set [] to allow all IP addresses
															// or add a specific IPv4 of 192.168.1.5 :
															// ["127.0.0.1", "::ffff:127.0.0.1", "::1", "::ffff:192.168.1.5"],
															// or IPv4 range of 192.168.3.0 --> 192.168.3.15 use CIDR format :
															// ["127.0.0.1", "::ffff:127.0.0.1", "::1", "::ffff:192.168.3.0/28"],

	useHttps: false, 		// Support HTTPS or not, default "false" will use HTTP
	httpsPrivateKey: "", 	// HTTPS private key path, only require when useHttps is true
	httpsCertificate: "", 	// HTTPS Certificate path, only require when useHttps is true

	language: "en",
	locale: "en-UK",
	logLevel: ["INFO", "LOG", "WARN", "ERROR"], // Add "DEBUG" for even more logging
	timeFormat: 12,
	units: "metric",
	serverOnly:  true,
	// local for armv6l processors, default
	//   starts serveronly and then starts chrome browser
	// false, default for all NON-armv6l devices
	// true, force serveronly mode, because you want to.. no UI on this device

	modules: [
			{
		disabled: false,
		module:"MMM-Config",
		position:"top_right",  // the QR code (if requested) will appear here
		config:{
			showQR: false,
			//restart: "pm2",
			//force_update: true,
			//debug: true
			
		}
	},
	
    {
        module: 'MMM-AlexaControl',
        position: 'middle_center',
	notifications:[
    {
        name: 'Next page',
        port: 11102,
        OnOff: false,
        notification: ["PAGE_INCREMENT", 'payload']
    },
     {
        name: 'Previous page',
        port: 11103,
        OnOff: false,
        notification: ["PAGE_DECREMENT", 'payload']
    },
    {
        name: 'Selfie',
        port: 11104,
        OnOff: false,
        notification: ["SELFIE_SHOOT"]
    }
],

	config:{
		
            image: true,
	    deviceName: "mirror",
            pm2ProcessName: "mm",
            vcgencmd: "hide",
	    startPort: 11001,
	    refresh: true,
	    restart: true,
	    //stop: true,
	    reboot: true,
	    shutdown: true,
	    monitorToggle: true,
	    //cecAddress: "0.0.0.0",
	    //usb: false
	    pages: 2,
        }
    },
    {
    module: 'MMM-SleepWake',
    config:{
       //delay:  15,               // default
       mode: 'pi'
    }
},
 {
        module: 'MMM-pages',
	
        config: {
		pages: 2,
                modules:
                    [[ "MMM-Astro" ],
                     [ "MMM-OpenWeatherMapForecast", "compliments" ]],
                fixed: [ "clock", "MMM-page-indicator" ],
                hiddenPages: {
                    "screenSaver": [ "clock", "MMM-SomeBackgroundImageModule" ],
                    "admin": [ "MMM-ShowMeSystemStatsModule", "MMM-AnOnScreenMenuModule" ],
                },
        }
    },
    {
        module: 'MMM-page-indicator',
        position: 'bottom_bar',
        config: {
            pages: 2,
        }
    },
    {
	disabled: false,
	module: "MMM-Selfieshot",
    position: "bottom_center",
	config: {
    displayButton: "portrait",
	storePath: "/media/smartmirror/Storage/Photos",
	width:1280,
	height:720,
	quality: 100,
	device: null,
	shootMessage: "Smile!",
	shootCountdown: 3,
	displayCountdown: true,
	displayResult: true,
	playShutter: true,
	shutterSound: "shutter.mp3",
	}
},



		{
        disabled: false,
        module: 'MMM-Astro',
        position: 'top_left',
		      config: {
		      sign: "leo",
		      iconset: "4",
		      extend: false,
		             }
       },
       {
  		module: "MMM-OpenWeatherMapForecast",
  		header: "Weather",
  		position: "top_right",
  		classes: "default everyone",
  		disabled: true,
  		config: { 
    			iconset: "4c",
    			units: "metric",
    			useAnimatedIcons: true,
    			concise: false,
    			forecastLayout: "table",
    			showWind: true
  			}
		},
		


		{
			module: "alert",
		},
		{
			module: "updatenotification",
			position: "top_bar"
		},
		{
			module: "clock",
			position: "top_center"
		},
		
		{
			module: "compliments",
			position: "lower_third"
		},
		
		
		
	]
};

/*************** DO NOT EDIT THE LINE BELOW ***************/
if (typeof module !== "undefined") {module.exports = config;}