72 lines
3.0 KiB
JavaScript
72 lines
3.0 KiB
JavaScript
'use strict'
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/*
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Open Rowing Monitor, https://github.com/laberning/openrowingmonitor
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Implementation of the GeneralStatus as defined in:
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https://www.concept2.co.uk/files/pdf/us/monitors/PM5_BluetoothSmartInterfaceDefinition.pdf
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*/
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import bleno from '@abandonware/bleno'
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import { getFullUUID } from '../Pm5Constants.js'
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import log from 'loglevel'
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import BufferBuilder from '../../BufferBuilder.js'
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export default class GeneralStatus extends bleno.Characteristic {
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constructor (multiplexedCharacteristic) {
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super({
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// id for GeneralStatus as defined in the spec
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uuid: getFullUUID('0031'),
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value: null,
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properties: ['notify']
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})
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this._updateValueCallback = null
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this._multiplexedCharacteristic = multiplexedCharacteristic
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}
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onSubscribe (maxValueSize, updateValueCallback) {
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log.debug(`GeneralStatus - central subscribed with maxSize: ${maxValueSize}`)
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this._updateValueCallback = updateValueCallback
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return this.RESULT_SUCCESS
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}
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onUnsubscribe () {
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log.debug('GeneralStatus - central unsubscribed')
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this._updateValueCallback = null
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return this.RESULT_UNLIKELY_ERROR
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}
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notify (data) {
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if (this._updateValueCallback || this._multiplexedCharacteristic.centralSubscribed()) {
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const bufferBuilder = new BufferBuilder()
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// elapsedTime: UInt24LE in 0.01 sec
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bufferBuilder.writeUInt24LE(Math.round(data.totalMovingTime * 100))
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// distance: UInt24LE in 0.1 m
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bufferBuilder.writeUInt24LE(Math.round(data.totalLinearDistance * 10))
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// workoutType: UInt8 0 WORKOUTTYPE_JUSTROW_NOSPLITS, 2 WORKOUTTYPE_FIXEDDIST_NOSPLITS, 4 WORKOUTTYPE_FIXEDTIME_NOSPLITS
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bufferBuilder.writeUInt8(data.sessiontype === 'Distance' ? 2 : (data.sessiontype === 'Time' ? 4 : 0))
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// intervalType: UInt8 will always use 255 (NONE)
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bufferBuilder.writeUInt8(255)
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// workoutState: UInt8 0 WAITTOBEGIN, 1 WORKOUTROW, 10 WORKOUTEND
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bufferBuilder.writeUInt8(data.sessionStatus === 'Rowing' ? 1 : (data.sessionStatus === 'WaitingForStart' ? 0 : 10))
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// rowingState: UInt8 0 INACTIVE, 1 ACTIVE
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bufferBuilder.writeUInt8(data.sessionStatus === 'Rowing' ? 1 : 0)
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// strokeState: UInt8 2 DRIVING, 4 RECOVERY
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bufferBuilder.writeUInt8(data.strokeState === 'WaitingForDrive' ? 0 : (data.strokeState === 'Drive' ? 2 : 4))
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// totalWorkDistance: UInt24LE in 1 m
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bufferBuilder.writeUInt24LE(Math.round(data.totalLinearDistance))
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// workoutDuration: UInt24LE in 0.01 sec (if type TIME)
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bufferBuilder.writeUInt24LE(Math.round(data.totalMovingTime * 100))
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// workoutDurationType: UInt8 0 TIME, 0x40 CALORIES, 0x80 DISTANCE, 0xC0 WATTS
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bufferBuilder.writeUInt8(data.sessiontype === 'Distance' ? 0x80 : 0)
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// dragFactor: UInt8
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bufferBuilder.writeUInt8(Math.round(Math.min(data.dragFactor, 255)))
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if (this._updateValueCallback) {
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this._updateValueCallback(bufferBuilder.getBuffer())
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} else {
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this._multiplexedCharacteristic.notify(0x31, bufferBuilder.getBuffer())
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}
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return this.RESULT_SUCCESS
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}
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}
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}
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