iv123 lin / Mbed OS connected-lights

sample_pir-lights_rgb

Dependencies:   ChainableLED

webapp/main.js@0:7a352727249b, 2017-06-18 (annotated)

Committer:
iv123
Date:
Sun Jun 18 10:14:56 2017 +0000
Revision:
0:7a352727249b
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
iv123 0:7a352727249b 1 var TOKEN = 'YOUR_ACCESS_TOKEN';
iv123 0:7a352727249b 2
iv123 0:7a352727249b 3 var konekuta = require('konekuta');
iv123 0:7a352727249b 4 var express = require('express');
iv123 0:7a352727249b 5 var app = express();
iv123 0:7a352727249b 6 var server = require('http').Server(app);
iv123 0:7a352727249b 7 var io = require('socket.io')(server);
iv123 0:7a352727249b 8 var hbs = require('hbs');
iv123 0:7a352727249b 9
iv123 0:7a352727249b 10 // Some options for express (node.js web app library)
iv123 0:7a352727249b 11 hbs.registerPartials(__dirname + '/views/partials');
iv123 0:7a352727249b 12 app.use(express.static(__dirname + '/public'));
iv123 0:7a352727249b 13 app.set('view engine', 'html');
iv123 0:7a352727249b 14 app.set('views', __dirname + '/views');
iv123 0:7a352727249b 15 app.engine('html', hbs.__express);
iv123 0:7a352727249b 16
iv123 0:7a352727249b 17 if (!process.env.TOKEN && TOKEN === 'YOUR_ACCESS_TOKEN') {
iv123 0:7a352727249b 18 throw 'Please set your access token first in main.js!';
iv123 0:7a352727249b 19 }
iv123 0:7a352727249b 20
iv123 0:7a352727249b 21 // This is how we go from device => view model
iv123 0:7a352727249b 22 // we'll use this to render the device view, this will also be sent to the client
iv123 0:7a352727249b 23 // when a device connects (so it knows what to render)
iv123 0:7a352727249b 24 function mapToView(d) {
iv123 0:7a352727249b 25 var hex = Number(d.color).toString(16);
iv123 0:7a352727249b 26 var model = {
iv123 0:7a352727249b 27 name: d.endpoint,
iv123 0:7a352727249b 28 rawColor: d.color,
iv123 0:7a352727249b 29 color: '#' + '000000'.substring(0, 6 - hex.length) + hex,
iv123 0:7a352727249b 30 motionClass: d.status == 0 ? 'selected' : '',
iv123 0:7a352727249b 31 onClass: d.status == 1 ? 'selected' : '',
iv123 0:7a352727249b 32 offClass: d.status == 2 ? 'selected' : '',
iv123 0:7a352727249b 33 timeout: d.timeout,
iv123 0:7a352727249b 34 status: d.status
iv123 0:7a352727249b 35 };
iv123 0:7a352727249b 36
iv123 0:7a352727249b 37 // create the device HTML
iv123 0:7a352727249b 38 var html = hbs.handlebars.compile('{{> device}}')(model);
iv123 0:7a352727249b 39
iv123 0:7a352727249b 40 return { model: model, html: html };
iv123 0:7a352727249b 41 }
iv123 0:7a352727249b 42
iv123 0:7a352727249b 43 var options = {
iv123 0:7a352727249b 44 endpointType: 'light-system', // what endpoint types to look for
iv123 0:7a352727249b 45 token: TOKEN,
iv123 0:7a352727249b 46 io: io,
iv123 0:7a352727249b 47 deviceModel: { // building the initial device model (w/ 4 properties)
iv123 0:7a352727249b 48 status: {
iv123 0:7a352727249b 49 retrieve: 'led/0/permanent_status', // when device registers, retrieve value
iv123 0:7a352727249b 50 update: {
iv123 0:7a352727249b 51 method: 'put', // update actions
iv123 0:7a352727249b 52 path: 'led/0/permanent_status'
iv123 0:7a352727249b 53 }
iv123 0:7a352727249b 54 },
iv123 0:7a352727249b 55 timeout: {
iv123 0:7a352727249b 56 retrieve: 'led/0/timeout',
iv123 0:7a352727249b 57 update: {
iv123 0:7a352727249b 58 method: 'put',
iv123 0:7a352727249b 59 path: 'led/0/timeout'
iv123 0:7a352727249b 60 }
iv123 0:7a352727249b 61 },
iv123 0:7a352727249b 62 color: {
iv123 0:7a352727249b 63 retrieve: 'led/0/color',
iv123 0:7a352727249b 64 update: {
iv123 0:7a352727249b 65 method: 'put',
iv123 0:7a352727249b 66 path: 'led/0/color'
iv123 0:7a352727249b 67 }
iv123 0:7a352727249b 68 },
iv123 0:7a352727249b 69 count: {
iv123 0:7a352727249b 70 retrieve: 'pir/0/count',
iv123 0:7a352727249b 71 subscribe: true // subscribe to updates
iv123 0:7a352727249b 72 }
iv123 0:7a352727249b 73 },
iv123 0:7a352727249b 74 mapToView: mapToView,
iv123 0:7a352727249b 75 verbose: true // Verbose logging
iv123 0:7a352727249b 76 };
iv123 0:7a352727249b 77
iv123 0:7a352727249b 78 // Start konekuta (connects to mbed Device Connector, and retrieves initial device model)
iv123 0:7a352727249b 79 konekuta(options, (err, devices, ee, connector) => {
iv123 0:7a352727249b 80 if (err) {
iv123 0:7a352727249b 81 throw err;
iv123 0:7a352727249b 82 }
iv123 0:7a352727249b 83
iv123 0:7a352727249b 84 // Now we can start the web server
iv123 0:7a352727249b 85 server.listen(process.env.PORT || 5265, process.env.HOST || '0.0.0.0', function() {
iv123 0:7a352727249b 86 console.log('Web server listening on port %s!', process.env.PORT || 5265);
iv123 0:7a352727249b 87 });
iv123 0:7a352727249b 88
iv123 0:7a352727249b 89 // And handle requests
iv123 0:7a352727249b 90 app.get('/', function(req, res, next) {
iv123 0:7a352727249b 91 // Render index view, with the devices based on mapToView function
iv123 0:7a352727249b 92 res.render('index', { devices: devices.map(d => mapToView(d).model) });
iv123 0:7a352727249b 93 });
iv123 0:7a352727249b 94 });