First async/await rewrite of PlejdBLE
This commit is contained in:
Victor Hagelbäck
parent
898a9d822f
commit
7436c56c25
1 changed files with 219 additions and 156 deletions
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@ -9,11 +9,12 @@ const Configuration = require('./Configuration');
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const logger = Logger.getLogger('plejd-ble');
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// UUIDs
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const PLEJD_SERVICE = '31ba0001-6085-4726-be45-040c957391b5';
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const DATA_UUID = '31ba0004-6085-4726-be45-040c957391b5';
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const LAST_DATA_UUID = '31ba0005-6085-4726-be45-040c957391b5';
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const AUTH_UUID = '31ba0009-6085-4726-be45-040c957391b5';
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const PING_UUID = '31ba000a-6085-4726-be45-040c957391b5';
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const BLE_UUID_SUFFIX = '6085-4726-be45-040c957391b5';
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const PLEJD_SERVICE = `31ba0001-${BLE_UUID_SUFFIX}`;
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const DATA_UUID = `31ba0004-${BLE_UUID_SUFFIX}`;
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const LAST_DATA_UUID = `31ba0005-${BLE_UUID_SUFFIX}`;
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const AUTH_UUID = `31ba0009-${BLE_UUID_SUFFIX}`;
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const PING_UUID = `31ba000a-${BLE_UUID_SUFFIX}`;
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const BLE_CMD_DIM_CHANGE = 0xc8;
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const BLE_CMD_DIM2_CHANGE = 0x98;
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@ -34,22 +35,29 @@ const MAX_RETRY_COUNT = 5; // Could be made a setting
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const delay = (timeout) => new Promise((resolve) => setTimeout(resolve, timeout));
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class PlejBLE extends EventEmitter {
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class PlejBLEHandler extends EventEmitter {
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adapter;
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adapterProperties;
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config;
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deviceRegistry;
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// Refer to BLE-states.md regarding the internal BLE/bluez state machine of Bluetooth states
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// These states refer to the state machine of this file
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static STATES = ['MAIN_INIT', 'GET_ADAPTER_PROXY'];
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constructor(deviceRegistry) {
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super();
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logger.info('Starting Plejd BLE, resetting all device states.');
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logger.info('Starting Plejd BLE Handler, resetting all device states.');
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this.config = Configuration.getOptions();
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this.deviceRegistry = deviceRegistry;
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this.connectedDevice = null;
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this.deviceRegistry = deviceRegistry;
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this.plejdService = null;
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this.bleDevices = [];
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this.bleDeviceTransitionTimers = {};
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this.discoveryTimeout = null;
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this.plejdDevices = {};
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this.connectEventHooked = false;
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this.writeQueue = [];
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@ -66,15 +74,13 @@ class PlejBLE extends EventEmitter {
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};
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this.bus = null;
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this.adapter = null;
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}
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async init() {
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logger.info('init()');
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this.bus = dbus.systemBus();
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logger.debug('wiring events and waiting for BLE interface to power up.');
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this.wireEvents();
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this.adapter = null;
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this.adapterProperties = null;
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this.cryptoKey = Buffer.from(this.deviceRegistry.cryptoKey.replace(/-/g, ''), 'hex');
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@ -93,25 +99,174 @@ class PlejBLE extends EventEmitter {
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ping: null,
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};
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clearInterval(this.pingRef);
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clearTimeout(this.writeQueueRef);
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await this._getInterface();
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await this._startGetPlejdDevice();
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logger.info('Init done');
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}
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async _initDiscoveredPlejdDevice(path) {
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logger.debug(`initDiscoveredPlejdDevice(). Got ${path} device`);
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logger.debug(`Inspecting ${path}`);
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try {
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const proxyObject = await this.bus.getProxyObject(BLUEZ_SERVICE_NAME, path);
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const device = await proxyObject.getInterface(BLUEZ_DEVICE_ID);
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const properties = await proxyObject.getInterface(DBUS_PROP_INTERFACE);
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const plejd = { path };
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plejd.rssi = (await properties.Get(BLUEZ_DEVICE_ID, 'RSSI')).value;
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plejd.instance = device;
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const segments = plejd.path.split('/');
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let fixedPlejdPath = segments[segments.length - 1].replace('dev_', '');
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fixedPlejdPath = fixedPlejdPath.replace(/_/g, '');
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plejd.device = this.deviceRegistry.getDeviceBySerialNumber(fixedPlejdPath);
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logger.debug(`Discovered ${plejd.path} with rssi ${plejd.rssi}, name ${plejd.device.name}`);
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// Todo: Connect should probably be done here
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this.bleDevices.push(plejd);
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} catch (err) {
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logger.error(`Failed inspecting ${path}. `, err);
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}
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}
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async _inspectDevicesDiscovered() {
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if (this.bleDevices.length === 0) {
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logger.error('Discovery timeout elapsed, no devices found. Exiting...');
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throw new Error('Discovery timeout elapsed, no devices found');
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}
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logger.info(`Device discovery done, found ${this.bleDevices.length} Plejd devices`);
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const sortedDevices = this.bleDevices.sort((a, b) => b.rssi - a.rssi);
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// eslint-disable-next-line no-restricted-syntax
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for (const plejd of sortedDevices) {
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try {
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console.log('Inspecting', plejd);
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if (plejd.instance) {
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logger.info(`Connecting to ${plejd.path}`);
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// eslint-disable-next-line no-await-in-loop
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await plejd.instance.Connect();
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logger.verbose('Connected. Waiting for timeout before reading characteristics...');
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// eslint-disable-next-line no-await-in-loop
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await delay(this.config.connectionTimeout * 1000);
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// eslint-disable-next-line no-await-in-loop
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const connectedPlejdDevice = await this._onDeviceConnected(plejd);
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if (connectedPlejdDevice) {
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break;
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}
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}
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} catch (err) {
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logger.warn('Unable to connect.', err);
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}
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}
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try {
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logger.verbose('Stopping discovery...');
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await this.adapter.StopDiscovery();
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logger.verbose('Stopped BLE discovery');
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} catch (err) {
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logger.error('Failed to stop discovery.', err);
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if (err.message.includes('Operation already in progress')) {
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logger.info(
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'If you continue to get "operation already in progress" error, you can try power cycling the bluetooth adapter. Get root console access, run "bluetoothctl" => "power off" => "power on" => "exit" => restart addon.',
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);
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try {
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await delay(250);
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logger.verbose('Power cycling...');
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await this._powerCycleAdapter();
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logger.verbose('Trying again...');
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await this._startGetPlejdDevice();
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} catch (errInner) {
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throw new Error('Failed to retry internalInit.');
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}
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}
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throw new Error(
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'Failed to start discovery. Make sure no other add-on is currently scanning.',
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);
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}
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if (!this.connectedDevice) {
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logger.error('Could not connect to any Plejd device. Exiting...');
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this.emit('connectFailed');
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throw new Error('Could not connect to any Plejd device');
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}
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// Connected and authenticated, start ping
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this.startPing();
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this.startWriteQueue();
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// After we've authenticated, we need to hook up the event listener
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// for changes to lastData.
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this.characteristics.lastDataProperties.on('PropertiesChanged', (
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iface,
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properties,
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// invalidated (third param),
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) => this.onLastDataUpdated(iface, properties));
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this.characteristics.lastData.StartNotify();
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}
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async _getInterface() {
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const bluez = await this.bus.getProxyObject(BLUEZ_SERVICE_NAME, '/');
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this.objectManager = await bluez.getInterface(DBUS_OM_INTERFACE);
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// We need to find the ble interface which implements the Adapter1 interface
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const managedObjects = await this.objectManager.GetManagedObjects();
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const result = await this._getInterface(managedObjects, BLUEZ_ADAPTER_ID);
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const managedPaths = Object.keys(managedObjects);
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if (result) {
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this.adapter = result[1];
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console.log('Managed objects', managedObjects);
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console.log('Managed paths', managedPaths);
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// eslint-disable-next-line no-restricted-syntax
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for (const path of managedPaths) {
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const pathInterfaces = Object.keys(managedObjects[path]);
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if (pathInterfaces.indexOf(BLUEZ_ADAPTER_ID) > -1) {
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logger.debug(`Found BLE interface '${BLUEZ_ADAPTER_ID}' at ${path}`);
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try {
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// eslint-disable-next-line no-await-in-loop
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const adapterObject = await this.bus.getProxyObject(BLUEZ_SERVICE_NAME, path);
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console.log('Got adapter results', adapterObject);
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// eslint-disable-next-line no-await-in-loop
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this.adapterProperties = await adapterObject.getInterface(DBUS_PROP_INTERFACE);
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// eslint-disable-next-line no-await-in-loop
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await this._powerOnAdapter();
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this.adapter = adapterObject.getInterface(BLUEZ_ADAPTER_ID);
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// eslint-disable-next-line no-await-in-loop
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await this._cleanExistingConnections(managedObjects);
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return this.adapter;
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} catch (err) {
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logger.error(`Failed to get interface '${BLUEZ_ADAPTER_ID}'. `, err);
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}
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}
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}
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if (!this.adapter) {
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this.adapter = null;
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logger.error('Unable to find a bluetooth adapter that is compatible.');
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throw new Error('Unable to find a bluetooth adapter that is compatible.');
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}
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async _powerCycleAdapter() {
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await this._powerOffAdapter();
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await this._powerOnAdapter();
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}
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async _powerOnAdapter() {
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await this.adapterProperties.Set(BLUEZ_ADAPTER_ID, 'Powered', new dbus.Variant('b', 1));
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await delay(1000);
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}
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async _powerOffAdapter() {
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await this.adapterProperties.Set(BLUEZ_ADAPTER_ID, 'Powered', new dbus.Variant('b', 0));
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await delay(1000);
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}
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async _cleanExistingConnections(managedObjects) {
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logger.verbose(
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`Iterating ${
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Object.keys(managedObjects).length
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@ -147,9 +302,13 @@ class PlejBLE extends EventEmitter {
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}
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logger.verbose('All active BLE device connections cleaned up.');
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}
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async _startGetPlejdDevice() {
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logger.verbose('Setting up interfacesAdded subscription and discovery filter');
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this.objectManager.on('InterfacesAdded', (path, interfaces) => this.onInterfacesAdded(path, interfaces));
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this.objectManager.on('InterfacesAdded', (path, interfaces) =>
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this.onInterfacesAdded(path, interfaces),
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);
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this.adapter.SetDiscoveryFilter({
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UUIDs: new dbus.Variant('as', [PLEJD_SERVICE]),
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@ -158,6 +317,7 @@ class PlejBLE extends EventEmitter {
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try {
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logger.verbose('Starting BLE discovery... This can take up to 180 seconds.');
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this._scheduleInternalInit();
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await this.adapter.StartDiscovery();
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logger.verbose('Started BLE discovery');
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} catch (err) {
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@ -171,90 +331,11 @@ class PlejBLE extends EventEmitter {
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'Failed to start discovery. Make sure no other add-on is currently scanning.',
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);
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}
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await delay(this.config.connectionTimeout * 1000);
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await this._internalInit();
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logger.info('Init done');
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}
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async _internalInit() {
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logger.debug(`InternalInit(). Got ${this.bleDevices.length} device(s).`);
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if (this.bleDevices.length === 0) {
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logger.warn('No devices, init will presumably not work');
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}
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// eslint-disable-next-line no-restricted-syntax
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for (const plejd of this.bleDevices) {
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/* eslint-disable no-await-in-loop */
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logger.debug(`Inspecting ${plejd.path}`);
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try {
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const proxyObject = await this.bus.getProxyObject(BLUEZ_SERVICE_NAME, plejd.path);
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const device = await proxyObject.getInterface(BLUEZ_DEVICE_ID);
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const properties = await proxyObject.getInterface(DBUS_PROP_INTERFACE);
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plejd.rssi = (await properties.Get(BLUEZ_DEVICE_ID, 'RSSI')).value;
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plejd.instance = device;
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const segments = plejd.path.split('/');
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let fixedPlejdPath = segments[segments.length - 1].replace('dev_', '');
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fixedPlejdPath = fixedPlejdPath.replace(/_/g, '');
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plejd.device = this.deviceRegistry.getDeviceBySerialNumber(fixedPlejdPath);
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logger.debug(`Discovered ${plejd.path} with rssi ${plejd.rssi}`);
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} catch (err) {
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logger.error(`Failed inspecting ${plejd.path}. `, err);
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}
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/* eslint-enable no-await-in-loop */
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}
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const sortedDevices = this.bleDevices.sort((a, b) => b.rssi - a.rssi);
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let connectedDevice = null;
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// eslint-disable-next-line no-restricted-syntax
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for (const plejd of sortedDevices) {
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try {
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if (plejd.instance) {
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logger.info(`Connecting to ${plejd.path}`);
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// eslint-disable-next-line no-await-in-loop
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await plejd.instance.Connect();
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connectedDevice = plejd;
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break;
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}
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} catch (err) {
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logger.error('Warning: unable to connect, will retry. ', err);
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}
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}
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await delay(this.config.connectionTimeout * 1000);
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await this.onDeviceConnected(connectedDevice);
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logger.verbose('Stopping discovery...');
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await this.adapter.StopDiscovery();
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}
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async _getInterface(managedObjects, iface) {
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const managedPaths = Object.keys(managedObjects);
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// eslint-disable-next-line no-restricted-syntax
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for (const path of managedPaths) {
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const pathInterfaces = Object.keys(managedObjects[path]);
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if (pathInterfaces.indexOf(iface) > -1) {
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logger.debug(`Found BLE interface '${iface}' at ${path}`);
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try {
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// eslint-disable-next-line no-await-in-loop
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const adapterObject = await this.bus.getProxyObject(BLUEZ_SERVICE_NAME, path);
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return [path, adapterObject.getInterface(iface), adapterObject];
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} catch (err) {
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logger.error(`Failed to get interface '${iface}'. `, err);
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}
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}
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}
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return null;
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_scheduleInternalInit() {
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clearTimeout(this.discoveryTimeout);
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setTimeout(() => this._inspectDevicesDiscovered(), this.config.connectionTimeout * 1000);
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}
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async onInterfacesAdded(path, interfaces) {
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@ -265,9 +346,8 @@ class PlejBLE extends EventEmitter {
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if (interfaceKeys.indexOf(BLUEZ_DEVICE_ID) > -1) {
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if (interfaces[BLUEZ_DEVICE_ID].UUIDs.value.indexOf(PLEJD_SERVICE) > -1) {
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logger.debug(`Found Plejd service on ${path}`);
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this.bleDevices.push({
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path,
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});
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await this._initDiscoveredPlejdDevice(path);
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} else {
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logger.error('Uh oh, no Plejd device!');
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}
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@ -311,11 +391,11 @@ class PlejBLE extends EventEmitter {
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const isDimmable = this.deviceRegistry.getDevice(deviceId).dimmable;
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if (
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transition > 1
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&& isDimmable
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&& (initialBrightness || initialBrightness === 0)
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&& (targetBrightness || targetBrightness === 0)
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&& targetBrightness !== initialBrightness
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transition > 1 &&
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isDimmable &&
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(initialBrightness || initialBrightness === 0) &&
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(targetBrightness || targetBrightness === 0) &&
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targetBrightness !== initialBrightness
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) {
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// Transition time set, known initial and target brightness
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// Calculate transition interval time based on delta brightness and max steps per second
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@ -435,19 +515,8 @@ class PlejBLE extends EventEmitter {
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await this.characteristics.auth.WriteValue([...response], {});
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} catch (err) {
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logger.error('Failed to authenticate: ', err);
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throw new Error('Failed to authenticate');
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}
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// auth done, start ping
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this.startPing();
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this.startWriteQueue();
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// After we've authenticated, we need to hook up the event listener
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// for changes to lastData.
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this.characteristics.lastDataProperties.on(
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'PropertiesChanged',
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this.onLastDataUpdated.bind(this),
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);
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this.characteristics.lastData.StartNotify();
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}
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async throttledInit(delayMs) {
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@ -457,14 +526,16 @@ class PlejBLE extends EventEmitter {
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);
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return this.initInProgress;
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}
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this.initInProgress = new Promise((resolve) => setTimeout(async () => {
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this.initInProgress = new Promise((resolve) =>
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setTimeout(async () => {
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const result = await this.init().catch((err) => {
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logger.error('TrottledInit exception calling init(). Will re-throw.', err);
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throw err;
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});
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this.initInProgress = null;
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resolve(result);
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}, delayMs));
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}, delayMs),
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);
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return this.initInProgress;
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}
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@ -558,8 +629,8 @@ class PlejBLE extends EventEmitter {
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if (this.writeQueue.some((item) => item.deviceId === queueItem.deviceId)) {
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logger.verbose(
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`Skipping ${deviceName} (${queueItem.deviceId}) `
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+ `${queueItem.log} due to more recent command in queue.`,
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`Skipping ${deviceName} (${queueItem.deviceId}) ` +
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`${queueItem.log} due to more recent command in queue.`,
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);
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// Skip commands if new ones exist for the same deviceId
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// still process all messages in order
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@ -641,26 +712,26 @@ class PlejBLE extends EventEmitter {
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|||
};
|
||||
}
|
||||
|
||||
async onDeviceConnected(device) {
|
||||
async _onDeviceConnected(device) {
|
||||
this.connectedDevice = null;
|
||||
logger.info('onDeviceConnected()');
|
||||
logger.debug(`Device: ${JSON.stringify(device.device)}`);
|
||||
if (!device) {
|
||||
logger.error('onDeviceConnected device is null. Returning.');
|
||||
return;
|
||||
}
|
||||
|
||||
const objects = await this.objectManager.GetManagedObjects();
|
||||
const paths = Object.keys(objects);
|
||||
const characteristics = [];
|
||||
|
||||
console.log(`Iterating looking for ${GATT_CHRC_ID}`, paths);
|
||||
// eslint-disable-next-line no-restricted-syntax
|
||||
for (const path of paths) {
|
||||
const interfaces = Object.keys(objects[path]);
|
||||
console.log('Interfaces', path, interfaces);
|
||||
if (interfaces.indexOf(GATT_CHRC_ID) > -1) {
|
||||
characteristics.push(path);
|
||||
}
|
||||
}
|
||||
|
||||
console.log('Characteristics', characteristics);
|
||||
// eslint-disable-next-line no-restricted-syntax
|
||||
for (const path of paths) {
|
||||
const interfaces = Object.keys(objects[path]);
|
||||
|
|
@ -683,23 +754,23 @@ class PlejBLE extends EventEmitter {
|
|||
}
|
||||
|
||||
if (!this.plejdService) {
|
||||
logger.info("warning: wasn't able to connect to Plejd, will retry.");
|
||||
this.emit('connectFailed');
|
||||
return;
|
||||
logger.warn("Wasn't able to connect to Plejd, will retry.");
|
||||
return null;
|
||||
}
|
||||
|
||||
if (!this.characteristics.auth) {
|
||||
logger.error('unable to enumerate characteristics.');
|
||||
this.emit('connectFailed');
|
||||
return;
|
||||
return null;
|
||||
}
|
||||
|
||||
this.connectedDevice = device.device;
|
||||
await this.authenticate();
|
||||
|
||||
return this.connectedDevice;
|
||||
}
|
||||
|
||||
// eslint-disable-next-line no-unused-vars
|
||||
async onLastDataUpdated(iface, properties, invalidated) {
|
||||
async onLastDataUpdated(iface, properties) {
|
||||
if (iface !== GATT_CHRC_ID) {
|
||||
return;
|
||||
}
|
||||
|
|
@ -734,7 +805,7 @@ class PlejBLE extends EventEmitter {
|
|||
const dim = decoded.length > 7 ? decoded.readUInt8(7) : 0;
|
||||
// Bytes 8-9 are sometimes present, what are they?
|
||||
|
||||
const deviceName = this._getDeviceName(deviceId);
|
||||
const deviceName = this.deviceRegistry.getDeviceName(deviceId);
|
||||
if (Logger.shouldLog('debug')) {
|
||||
// decoded.toString() could potentially be expensive
|
||||
logger.debug(`Raw event received: ${decoded.toString('hex')}`);
|
||||
|
|
@ -766,7 +837,7 @@ class PlejBLE extends EventEmitter {
|
|||
logger.verbose(`All states: ${this.plejdDevices}`);
|
||||
} else if (cmd === BLE_CMD_SCENE_TRIG) {
|
||||
const sceneId = state;
|
||||
const sceneName = this._getDeviceName(sceneId);
|
||||
const sceneName = this.deviceRegistry.getSceneName(sceneId);
|
||||
|
||||
logger.debug(
|
||||
`${sceneName} (${sceneId}) scene triggered (device id ${deviceId}). Name can be misleading if there is a device with the same numeric id.`,
|
||||
|
|
@ -784,14 +855,6 @@ class PlejBLE extends EventEmitter {
|
|||
}
|
||||
}
|
||||
|
||||
wireEvents() {
|
||||
logger.info('wireEvents()');
|
||||
const self = this;
|
||||
|
||||
this.on('pingFailed', this.onPingFailed.bind(self));
|
||||
this.on('pingSuccess', this.onPingSuccess.bind(self));
|
||||
}
|
||||
|
||||
// eslint-disable-next-line class-methods-use-this
|
||||
_createChallengeResponse(key, challenge) {
|
||||
const intermediate = crypto.createHash('sha256').update(xor(key, challenge)).digest();
|
||||
|
|
@ -836,4 +899,4 @@ class PlejBLE extends EventEmitter {
|
|||
}
|
||||
}
|
||||
|
||||
module.exports = PlejBLE;
|
||||
module.exports = PlejBLEHandler;
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue