96 lines
2.3 KiB
JavaScript
96 lines
2.3 KiB
JavaScript
'use strict'
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/*
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Open Rowing Monitor, https://github.com/laberning/openrowingmonitor
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This manager creates the different Bluetooth Low Energy (BLE) Peripherals and allows
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switching between them
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*/
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import config from '../config.js'
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import { createFtmsPeripheral } from './FtmsPeripheral.js'
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import { createPm5Peripheral } from './Pm5Peripheral.js'
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import log from 'loglevel'
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import EventEmitter from 'node:events'
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const modes = ['FTMS', 'FTMSBIKE', 'PM5']
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function createPeripheralManager () {
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const emitter = new EventEmitter()
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let peripheral
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let mode
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createPeripheral(config.bluetoothMode)
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function getPeripheral () {
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return peripheral
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}
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function getPeripheralMode () {
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return mode
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}
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function switchPeripheralMode (newMode) {
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// if now mode was passed, select the next one from the list
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if (newMode === undefined) {
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newMode = modes[(modes.indexOf(mode) + 1) % modes.length]
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}
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createPeripheral(newMode)
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}
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function notifyMetrics (type, metrics) {
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peripheral.notifyData(metrics)
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}
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function notifyStatus (status) {
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peripheral.notifyStatus(status)
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}
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async function createPeripheral (newMode) {
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if (peripheral) {
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await peripheral.destroy()
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peripheral.off('controlPoint', emitControlPointEvent)
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}
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if (newMode === 'PM5') {
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log.info('bluetooth profile: Concept2 PM5')
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peripheral = createPm5Peripheral()
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mode = 'PM5'
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} else if (newMode === 'FTMSBIKE') {
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log.info('bluetooth profile: FTMS Indoor Bike')
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peripheral = createFtmsPeripheral({
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simulateIndoorBike: true
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})
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mode = 'FTMSBIKE'
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} else {
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log.info('bluetooth profile: FTMS Rower')
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peripheral = createFtmsPeripheral({
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simulateIndoorBike: false
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})
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mode = 'FTMS'
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}
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// todo: re-emitting is not that great, maybe use callbacks instead
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peripheral.on('control', emitControlPointEvent)
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peripheral.triggerAdvertising()
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emitter.emit('control', {
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req: {
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name: 'peripheralMode',
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peripheralMode: mode
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}
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})
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}
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function emitControlPointEvent (event) {
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emitter.emit('control', event)
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}
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return Object.assign(emitter, {
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getPeripheral,
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getPeripheralMode,
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switchPeripheralMode,
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notifyMetrics,
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notifyStatus
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})
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}
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export { createPeripheralManager }
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