intval3/services/bluetooth/index.js

116 lines
2.8 KiB
JavaScript

'use strict'
const ipc = require('node-ipc')
const bleno = require('bleno')
const util = require('util')
const wifi = require('../../lib/wifi')
const BLENO_DEVICE_NAME = process.env.BLENO_DEVICE_NAME || 'my_project'
const DEVICE_ID = process.env.DEVICE_ID || 'my_project_id'
const SERVICE_ID = process.env.SERVICE_ID || 'blootstrap'
const CHAR_ID = process.env.CHAR_ID || 'blootstrapwifi'
const chars = []
ipc.config.id = 'blootstrap_ble'
ipc.config.retry = 1500
ipc.config.rawBuffer = true
ipc.config.encoding = 'hex'
function createChar(name, uuid, prop, write, read) {
function characteristic () {
bleno.Characteristic.call(this, {
uuid : uuid,
properties: prop
})
}
util.inherits(characteristic, bleno.Characteristic)
if (prop.indexOf('read')) {
//data, offset, withoutResponse, callback
characteristic.prototype.onReadRequest = read
}
if (prop.indexOf('write')) {
characteristic.prototype.onWriteRequest = write
}
char.push(new characteristic())
}
function onWifiWrite (data, offset, withoutResponse, callback) {
let result
let utf8
let obj
let ssid
let pwd
if (offset) {
console.warn(`Offset scenario`)
result = bleno.Characteristic.RESULT_ATTR_NOT_LONG
return callback(result)
}
utf8 = data.toString('utf8')
obj = JSON.parse(utf8)
ssid = obj.ssid
pwd = obj.pwd
console.log(`Connecting to AP: ${ssid}...`)
return wifi.setNetwork(ssid, pwd, (err, data) => {
if (err) {
console.error('Error configuring wifi', err)
result = bleno.Characteristic.RESULT_UNLIKELY_ERROR
return callback(result)
}
console.log(`Connected to ${ssid}`)
result = bleno.Characteristic.RESULT_SUCCESS
return callback(result)
})
}
function onWifiRead (offset, callback) {
const result = bleno.Characteristic.RESULT_SUCCESS
callback(result, data.slice(offset, data.length))
}
console.log('Starting bluetooth service')
bleno.on('stateChange', state => {
console.log('on -> stateChange: ' + state)
if (state === 'poweredOn') {
console.log('Started advertising blootstrap services')
bleno.startAdvertising(BLENO_DEVICE_NAME, [DEVICE_ID])
} else {
bleno.stopAdvertising()
}
})
bleno.on('advertisingStart', err => {
console.log('on -> advertisingStart: ' + (err ? 'error ' + err : 'success'))
if (!err) {
bleno.setServices([
new bleno.PrimaryService({
uuid : SERVICE_ID, //hardcoded across panels
characteristics : chars
})
])
}
})
bleno.on('accept', clientAddress => {
console.log(`${clientAddress} accepted`)
})
bleno.on('disconnect', clientAddress => {
console.log(`${clientAddress} disconnected`)
})
ipc.serve(() => {
ipc.server.on('connect', socket => {
ipc.log('Client connected to socket')
})
ipc.server.on('disconnect', () => {
ipc.log('Client disconnected from socket')
})
ipc.server.on('data', (data, socket) => {
ipc.server.emit(socket, JSON.stringify({}))
})
})
ipc.server.start()