puckJS toilet seat code

toilet-seat.js

let monitoring = false;
let seatDownAccel = null;
let flashInterval = null;
let movedSince = null;
let flashTimerTimeout = null;
let accelHandler = null;

// === Configuration Constants ===
const ANGLE_THRESHOLD = 25;             // degrees
const SEAT_UP_WARNING_DELAY_MS = 15000;
const ALERT_PHASE_1_END = 60;
const ALERT_PHASE_2_END = 3600;

function angleBetween(v1, v2) {
  const dot = v1.x*v2.x + v1.y*v2.y + v1.z*v2.z;
  const mag1 = Math.sqrt(v1.x*v1.x + v1.y*v1.y + v1.z*v1.z);
  const mag2 = Math.sqrt(v2.x*v2.x + v2.y*v2.y + v2.z*v2.z);
  const cosTheta = dot / (mag1 * mag2);
  return Math.acos(Math.min(Math.max(cosTheta, -1), 1)) * (180 / Math.PI);
}

function flashLED(led, onTime, offTime) {
  if (flashInterval) clearInterval(flashInterval);
  LED1.write(0); LED2.write(0); LED3.write(0);

  let state = false;
  flashInterval = setInterval(() => {
    state = !state;
    led.write(state);
  }, onTime + offTime);
}

function stopFlashing() {
  if (flashInterval) clearInterval(flashInterval);
  flashInterval = null;
  LED1.write(0); LED2.write(0); LED3.write(0);
}

function bluePulse() {
  LED3.write(1);
  setTimeout(() => LED3.write(0), 100);
}

function startFlashingTimer() {
  if (flashTimerTimeout) return;

  flashTimerTimeout = setTimeout(() => {
    const flashLogic = () => {
      const elapsed = (Date.now() - movedSince) / 1000;

      if (elapsed < ALERT_PHASE_1_END) {
        flashLED(LED1, 100, 400);
      } else if (elapsed < ALERT_PHASE_2_END) {
        flashLED(LED1, 100, 900);
      } else {
        flashLED(LED1, 100, 1900);
      }
    };

    flashLogic();
    flashInterval = setInterval(flashLogic, 10000);
  }, SEAT_UP_WARNING_DELAY_MS);
}

function startMonitoring() {
  seatDownAccel = Puck.accel().acc;
  console.log("Calibrated: seat is CLOSED");
  movedSince = null;

  // Blink green 3x
  let flashes = 0;
  let flash = setInterval(() => {
    LED2.write(1);
    setTimeout(() => LED2.write(0), 100);
    flashes++;
    if (flashes === 3) clearInterval(flash);
  }, 300);

  accelHandler = (data) => {
    if (!data || !seatDownAccel) return;

    const angle = angleBetween(data, seatDownAccel);
    if (angle > ANGLE_THRESHOLD) {
      if (!movedSince) {
        movedSince = Date.now();
        console.log("Seat is UP - movement detected (angle: " + angle.toFixed(1) + ")");
        bluePulse();
        startFlashingTimer();
      }
    } else {
      if (movedSince) {
        console.log("Seat is back DOWN - resetting timer");
        movedSince = null;
        stopFlashing();
        if (flashTimerTimeout) clearTimeout(flashTimerTimeout);
        flashTimerTimeout = null;
      }
    }
  };

  Puck.on('accel', accelHandler); // Just start the handler; sensor wakes automatically
}

function stopMonitoring() {
  console.log("Monitoring stopped");
  monitoring = false;

  if (flashInterval) clearInterval(flashInterval);
  if (flashTimerTimeout) clearTimeout(flashTimerTimeout);

  flashInterval = null;
  flashTimerTimeout = null;
  LED1.write(0); LED2.write(0); LED3.write(0);
  seatDownAccel = null;
  movedSince = null;

  Puck.removeListener('accel', accelHandler); // stop receiving accel events
  accelHandler = null;
}

function ledDancePowerOn(callback) {
  let rounds = 3;
  let delay = 300;

  function runRound(round) {
    if (round > rounds) return callback && callback();
    LED3.write(1);
    setTimeout(() => {
      LED3.write(0);
      delay *= 0.7;
      setTimeout(() => runRound(round + 1), delay);
    }, delay / 2);
  }
  runRound(1);
}

function ledDancePowerOff(callback) {
  let rounds = 3;
  let delay = 100;

  function runRound(round) {
    if (round > rounds) return callback && callback();
    LED1.write(1); LED2.write(1);
    setTimeout(() => {
      LED1.write(0); LED2.write(0);
      delay *= 1.5;
      setTimeout(() => runRound(round + 1), delay);
    }, delay / 2);
  }
  runRound(1);
}

// Button toggle
setWatch(() => {
  if (!monitoring) {
    monitoring = true;
    ledDancePowerOn(startMonitoring);
  } else {
    ledDancePowerOff(stopMonitoring);
  }
}, BTN, { edge: "rising", debounce: 50, repeat: true });