scc-auto-lights.js

'use strict';

const redis = require('redis').createClient();

const Firebase = require('firebase');
const nest = new Firebase('wss://developer-api.nest.com');
nest.auth('REDACTED');

const HueApi = require("node-hue-api").HueApi;
const hue = new HueApi('REDACTED', 'REDACTED');

const homeState = nest.child('structures/REDACTED/away');

let stateChangePending = true;
let currentState = 'unknown';

homeState.on('value', (snapshot) => {
  const state = snapshot.val();
  console.log('Home state changed from', currentState, 'to', state);
  currentState = state;
  stateChangePending = false;

  if (state !== 'home') {
    console.log('Nobody home, turning lights off');

    hue.setGroupLightState(0, { on: false }, (err, res) => {
      console.log('The lights have been turned off');
    });

    return;
  }

  console.log('Welcome home! turning lights on');

  hue.setGroupLightState(0, { on: true, bri: 255, ct: 415 }, (err, res) => {
    console.log('The lights have been turned on');
    hue.setLightState(2, { bri: 100 }, (err, res) => {
      console.log('and the desk has been dimmed');
    });
  });
});

redis.on('message', (channel, message) => {
  if (stateChangePending) {
    console.log('Motion detected while state change pending, ignoring');
    return;
  }

  if (currentState === 'home') {
    //console.log('Motion detected while currently home, ignoring');
    return;
  }

  stateChangePending = true;
  homeState.set('home');
});

redis.subscribe('scc.sensors.motion.door');