NodeConfEU Badge Program

// Customize your badge
const line1 = 'Marco';
const line2 = '@thepeg    marcopeg.com';


// Conf program
const schedule = [
  {
    start: new Date(2017, 10, 6, 14, 0),
    end: new Date(2017, 10, 6, 15, 27),
    title: 'Javascript everything',
  },
  {
    start: new Date(2017, 10, 6, 16, 0),
    end: new Date(2017, 10, 6, 17, 30),
    title: 'The Streams Workshop',
  },
  {
    start: new Date(2017, 10, 6, 19, 0),
    end: new Date(2017, 10, 6, 23, 59, 59),
    title: 'Netflix Party!',
  },
  {
    start: new Date(2017, 10, 7, 9, 0),
    end: new Date(2017, 10, 7, 9, 29, 59),
    title: 'High Perf Js',
  },
  {
    start: new Date(2017, 10, 7, 9, 30),
    end: new Date(2017, 10, 7, 9, 59, 59),
    title: 'Hop on Serverless',
  },
  {
    start: new Date(2017, 10, 7, 10, 0),
    end: new Date(2017, 10, 7, 10, 29, 59),
    title: 'Cryptominoes',
  },
  {
    start: new Date(2017, 10, 7, 11, 0),
    end: new Date(2017, 10, 7, 11, 29, 59),
    title: 'Memory Footprint',
  },
  {
    start: new Date(2017, 10, 7, 11, 30),
    end: new Date(2017, 10, 7, 11, 59, 59),
    title: 'Back Pressure',
  },
  {
    start: new Date(2017, 10, 7, 12, 0),
    end: new Date(2017, 10, 7, 12, 29, 59),
    title: 'Tiny Art',
  },
  {
    start: new Date(2017, 10, 7, 13, 30),
    end: new Date(2017, 10, 7, 15, 0, 0),
    title: 'Crypto Wrks',
  },
  {
    start: new Date(2017, 10, 7, 15, 30),
    end: new Date(2017, 10, 7, 17, 29, 59),
    title: 'Taming Unicorns',
  }
];

let showProgram = false;
let btnaTimer = null;

const now = () => Date.now();

const getCEvt = () => {
  return schedule
    .filter(item => (
      item.start.getTime() <= now()
      && item.end.getTime() >= now()
    ))
    .shift();
};

const getNEvt = (limit) => {
  return schedule
    .filter(item => item.start.getTime() >= limit.getTime())
    .shift();
};

const isNextClose = event => {
  const i = event.start.getTime() - (new Date()).getTime();
  return i < 60000;
};

const zeroPad = n => n >= 10 ? n : `0${n}`;

const getTimeStr = date => {
  return `${zeroPad(date.getHours())}:${zeroPad(date.getMinutes())}`;
};

const writeCenter = (txt, offsetY) => {
  const txtW = g.stringWidth(txt);
  const txtX = (g.getWidth() - txtW) / 2;
  g.drawString(txt, txtX, offsetY);
};

const drawEvent = (evt, offset) => {
  g.setFontVector(10);
  writeCenter(evt.title, offset);
  g.setFontBitmap();
  writeCenter(`${getTimeStr(evt.start)} - ${getTimeStr(evt.end)}`, offset + 14);
};

const drawClock = () => {
  const now = new Date();
  const h = zeroPad(now.getHours());
  const m = zeroPad(now.getMinutes());
  const s = zeroPad(now.getSeconds());
  g.setFontBitmap();
  writeCenter(`${h}:${m}:${s}`, 1);
};

const drawProgram = (curr, next) => {
  if (curr) {
    digitalWrite(LED3, 1);
    digitalWrite(LED1, 0);
    drawEvent(curr, 10);
  } else {
    digitalWrite(LED3, 0);
    digitalWrite(LED1, 1);
  }

  if (next) {
    const nofs = curr ? 0 : -15;
    writeCenter('next:', 34 + nofs);
    drawEvent(next, 40 + nofs);
  }
};

const paint = () => {
  g.clear();

  // get events data
  const curr = getCEvt();
  let next = null;
  if (curr) {
    next = getNEvt(curr.end);
  } else {
    next = getNEvt(new Date());
  }

  // show relevant screens
  if (showProgram) {
    drawProgram(curr, next);
  } else {
    digitalWrite(LED1, 0);

    // is next event approaching?
    if (isNextClose(next)) {
      digitalWrite(LED3, digitalRead(LED3) === 0 ? 1 : 0);
    } else {
      digitalWrite(LED3, 0);
    }

    g.setFontVector(18);
    writeCenter(line1, 15);
    g.setFontVector(9);
    writeCenter(line2, 38);
  }

  drawClock();
  g.flip();
};

// watch on BTNA
setWatch(() => {
  showProgram = true;
  paint();
}, BTNA, { repeat: true, edge: 'rising', debounce: 50 });

setWatch(() => {
  showProgram = false;
  paint();
}, BTNA, { repeat: true, edge: 'falling', debounce: 50 });


setInterval(paint, 250);
//paint();