randommachine_test.js

const fs = require("fs");

const five = require("johnny-five");
const board = new five.Board({
  port: "/dev/ttyACM0"
});
const SerialPort = require('serialport');
const Printer = require('thermalprinter');

const nodeWebcam = require( "node-webcam" );
const player = require('play-sound')(opts = {});

const gm = require("gm");

const pixel = require("node-pixel");

let ledState = 0;
let snapshotDirectory = 'public/snapshots/';

const moment = require('moment');
moment.locale('nl');

var printer,
    strip;

let printerOpts = {
  maxPrintingDots: 7,
  heatingTime: 190,
  heatingInterval: 2,
  commandDelay: 0
};

let webcamOpts = {
    width: 1280,
    height: 1024,
    quality: 100,
    skip: 60,
};

const webcam = nodeWebcam.create(webcamOpts);

/**
 * how many frames per second do you want to try?
 */
var fps = 30;


let serialPort = new SerialPort('/dev/ttyUSB0', {
  baudRate: 9600
});

serialPort.on('open',function() {
  printer = new Printer(serialPort, printerOpts);

  printer.on('ready', function() {
    console.log("Printer ready");

    board.on("ready", function() {
      console.log("Board ready");

      let button = new five.Button(2);
      let led = new five.Led(3);
      var servo = new five.Servo({
        controller: "PCA9685",
        pin: 0,
        startAt: 10
      });

      strip = new pixel.Strip({
        board: this,
        controller: "FIRMATA",
        // data: 6,
        // length: 7
        // strips: [ {pin: 6, length: 7}, {pin: 9, length: 7}, {pin: 10, length: 7}, {pin: 11, length: 7}],
        strips: [ {pin: 6, length: 7}, {pin: 9, length: 7}, {pin: 10, length: 7}, {pin: 11, length: 7}],
      });

      strip.on("ready", function() {
        console.log("Strip ready");
        dynamicRainbow(fps);
      });

      // strip1 = new pixel.Strip({
      //   board: this,
      //   controller: "FIRMATA",
      //   data: 9, 
      //   length: 7
      // });

      // strip1.on("ready", function() {
      //   console.log("Strip 1 ready, let's go");
      //   dynamicRainbow(12);
      // });

      // strip2 = new pixel.Strip({
      //   board: this,
      //   controller: "FIRMATA",
      //   data: 10, 
      //   length: 7,
      // });

      // strip2.on("ready", function() {
      //   console.log("Strip 2 ready, let's go");
      //   dynamicRainbow(4);
      // });

      // strip3 = new pixel.Strip({
      //   board: this,
      //   controller: "FIRMATA",
      //   data: 11,
      //   length: 7,
      // });

      // strip3.on("ready", function() {
      //   console.log("Strip 3 ready, let's go");
      //   dynamicRainbow(6);
      // });
          
      led.strobe(700);

      button.on("release", function() {

      	let timestamp = Date.now();
        let date = moment().format("DD-MM-Y  HH:mm:ss");
    				
    		// led.stop().off();
    		led.strobe(50);

    		player.play('data/audio/soviet.wav', function(err){
    		  if (err) throw err
    		});

        servo.to(160, 200)
        // .on("move:complete", function() {
        //   console.log("camera omhoog");
        //   // takePicture(servo);
        //   // servo.to(0, 1000).on("move:complete", function() {
        //   //   console.log("camera omlaag");
        //   // });
        // })
        ;

    		// player.play('data/audio/soviet2.wav', { timeout: 30000 }, function(err){
    		//   if (err) throw err
    		// });

    		webcam.capture(snapshotDirectory + timestamp, function( err, data ) {
      		led.stop().off();
          led.strobe(700);
          servo.to(10, 500);
      		console.log(data);

      		player.play('data/audio/soviet2.wav', { timeout: 30000 }, function(err){
    			  if (err) throw err
    			});

          // led.pulse(2000);


      		alterImage(data, snapshotDirectory + timestamp);
    		});

      });
    }); 
  });
});


function randomPartij() {
	let partijenJson = JSON.parse(fs.readFileSync("data/partijen.json", 'utf8'));
	let randomPartij = partijenJson.partijen[Math.floor(Math.random() * partijenJson.partijen.length)];

	return randomPartij.naam;
}

// function takePicture(servo) {
//   servo.to(0, 1000)
//   // .on("move:complete", function() {
//   //   console.log("camera omlaag");
//   // })
//   ;
// }

function alterImage(source, fileName) {

	// Create monochrome image from snapshot
	gm(source)
	.resize(384)
	// .modulate(130) //brightness
	// .contrast(+3)
  .monochrome()
  // .fill('#FFFFFF')
  // .font("data/fonts/circular-medium.otf", 60)
  // .drawText(0, 0, randomPartij(), 'Center')
  
  .write(fileName + '-altered.png', () => {
    // Image created
    printer
      // .printImage('time.png')
      .printImage(fileName + '-altered.png')
      .printLine(randomPartij())
      .lineFeed('2')
      .print(function() {
        console.log('done');
        // process.exit();
      });
  });

  // printer
  //   // .printImage('time.png')
  //   // .printImage(fileName + '-altered.png')
  //   .printLine(randomPartij())
  //   .lineFeed('1')
  //   .print(function() {
  //     console.log('done');
  //     // process.exit();
  //   });
  // create watermark with party logo
  // gm(source)
  // .command('composite')
  // .gravity('SouthEast')
  // .out('-geometry', '+20+10') // offset
  // .in('watermark.png')
  // .stream()
  // .pipe(dest);

}

function dynamicRainbow( delay){
    console.log( 'dynamicRainbow' );

    var showColor;
    var cwi = 0; // colour wheel index (current position on colour wheel)
    var foo = setInterval(function(){
        if (++cwi > 255) {
            cwi = 0;
        }

        for(var i = 0; i < strip.length; i++) {
            showColor = colorWheel( ( cwi+i ) & 255 );
            strip.pixel( i ).color( showColor );
            // strip1.pixel( i ).color( showColor );
            // strip2.pixel( i ).color( showColor );
            // strip3.pixel( i ).color( showColor );
        }
        strip.show();
        // strip1.show();
        // strip2.show();
        // strip3.show();
    }, 1000/delay);
}

// Input a value 0 to 255 to get a color value.
// The colors are a transition r - g - b - back to r.
function colorWheel( WheelPos ){
    var r,g,b;
    WheelPos = 255 - WheelPos;

    if ( WheelPos < 85 ) {
        r = 255 - WheelPos * 3;
        g = 0;
        b = WheelPos * 3;
    } else if (WheelPos < 170) {
        WheelPos -= 85;
        r = 0;
        g = WheelPos * 3;
        b = 255 - WheelPos * 3;
    } else {
        WheelPos -= 170;
        r = WheelPos * 3;
        g = 255 - WheelPos * 3;
        b = 0;
    }
    // returns a string with the rgb value to be used as the parameter
    return "rgb(" + r +"," + g + "," + b + ")";
}