skynet-heartbeat/scan.js

Skynet Gateblu and Mobiblu Heartbeat plugin

'use strict';

var noble = require('noble');

var discover = function(peripheral){
    console.log('(scan)found: ' + peripheral.advertisement.localName);
    if(peripheral){
        this.peripherals.unshift(peripheral);
    }else{
        console.log('Invalid Peripheral');
    }
};

var stopandreturn = function (){
    noble.stopScanning();
    noble.removeListener('discover', discover);
    console.log('Stop Scanning for BLE devices...');

    this.done(this.peripherals);
};

module.exports = function (timeout, serviceUuids, peripherals, done) {
    noble.on('discover', discover.bind({peripherals:peripherals}));
    if(!Array.isArray(serviceUuids)){
        serviceUuids = [serviceUuids];
    }
    noble.startScanning(serviceUuids);
    console.log('Scanning for BLE devices...');
    setTimeout(stopandreturn.bind({done:done, peripherals:peripherals}), timeout);
};