feat(bluetooth-low-energy): allow tag names to be overriden

As mentioned in #102, the default sensor names are unweildy. This allows
users to give tags customized names via their id.

src/integrations/bluetooth-low-energy/bluetooth-low-energy.config.ts

@@ -11,5 +11,6 @@ export class BluetoothLowEnergyConfig {
 }
 
 class TagOverride {
-  measuredPower: number;
+  name?: string;
+  measuredPower?: number;
 }

src/integrations/bluetooth-low-energy/bluetooth-low-energy.service.spec.ts

@@ -243,7 +243,7 @@ describe('BluetoothLowEnergyService', () => {
     );
   });
 
-  it('should apply tag overrides if they exist', () => {
+  it('should apply tag distance override if it exists', () => {
     const sensor = new Sensor('testid', 'Test');
     entitiesService.has.mockReturnValue(true);
     entitiesService.get.mockReturnValue(sensor);
@@ -295,6 +295,35 @@ describe('BluetoothLowEnergyService', () => {
     );
   });
 
+  it('should apply a tag name override if it exists', () => {
+    const sensor = new Sensor('testid', 'Test');
+    entitiesService.has.mockReturnValue(false);
+    entitiesService.add.mockReturnValue(sensor);
+    jest
+      .spyOn(service, 'handleNewDistance')
+      .mockImplementation(() => undefined);
+    mockConfig.tagOverrides = {
+      abcd: {
+        name: 'better name'
+      }
+    };
+
+    service.handleDiscovery({
+      id: 'abcd',
+      rssi: -12,
+      advertisement: {
+        localName: 'Test BLE Device'
+      }
+    } as Peripheral);
+
+    expect(entitiesService.add).toHaveBeenCalledWith(
+      expect.objectContaining({
+        name: expect.stringContaining('better name')
+      }),
+      expect.any(Array)
+    );
+  });
+
   it('should create a new distance sensor if there is not a matching one yet', () => {
     const sensor = new Sensor('new', 'New');
     entitiesService.has.mockReturnValue(false);

src/integrations/bluetooth-low-energy/bluetooth-low-energy.service.ts

@@ -248,6 +248,9 @@ export class BluetoothLowEnergyService
   protected applyOverrides(tag: Tag): Tag {
     if (this.config.tagOverrides.hasOwnProperty(tag.id)) {
       const overrides = this.config.tagOverrides[tag.id];
+      if (overrides.name !== undefined) {
+        tag.name = overrides.name;
+      }
       if (overrides.measuredPower !== undefined) {
         tag.measuredPower = overrides.measuredPower;
       }

src/integrations/bluetooth-low-energy/tag.ts

@@ -2,6 +2,8 @@ import { Peripheral } from '@abandonware/noble';
 import _ from 'lodash';
 
 export class Tag {
+  private _name;
+
   constructor(peripheral: Peripheral) {
     this.peripheral = peripheral;
     this.rssi = peripheral.rssi;
@@ -18,7 +20,11 @@ export class Tag {
   }
 
   get name(): string {
-    return this.peripheral.advertisement.localName || this.id;
+    return this._name || this.peripheral.advertisement.localName || this.id;
+  }
+
+  set name(name: string) {
+    this._name = name;
   }
 
   get distance(): number {