Add support for Pico 4-button remotes

This change adds support for Pico 4-button *scene* and *zone* remotes.
In all truth, I only have a Pico4ButtonZone on-hand, but I very strongly
suspect the Pico4ButtonScene remotes share the button mapping. This does
not add support for Pico4Button remotes.

src/PicoRemote.ts

@@ -5,10 +5,19 @@ import { ExceptionDetail, OneButtonStatusEvent, Response, SmartBridge } from 'lu
 
 import { inspect } from 'util';
 
-// This maps device types and button numbers to human-readable labels and
+// This maps DeviceType and ButtonNumber to human-readable labels and
 // ServiceLabelIndex values. n.b. the labels are not shown in Apple's Home app,
 // but are shown in other apps. The index value determines the order that
-// buttons are shown in the Home app. They're ordered top-to-bottom here.
+// buttons are shown in the Home app. They're ordered top-to-bottom (as they
+// appear on the physical remote) in this map.
+//
+// [
+//     $DeviceType,
+//     new Map([
+//         [$ButtonNumber, { label: '...', index: ... }],
+//         ...
+//     ]),
+// ]
 const BUTTON_MAP = new Map<string, Map<number, { label: string; index: number }>>([
     [
         'Pico2Button',
@@ -44,14 +53,28 @@ const BUTTON_MAP = new Map<string, Map<number, { label: string; index: number }>
             [4, { label: 'Lower', index: 4 }],
         ]),
     ],
+    [
+        'Pico4ButtonScene',
+        new Map([
+            [1, { label: 'Button 1', index: 1 }],
+            [2, { label: 'Button 2', index: 2 }],
+            [3, { label: 'Button 3', index: 3 }],
+            [4, { label: 'Button 4', index: 4 }],
+        ]),
+    ],
+    [
+        'Pico4ButtonZone',
+        new Map([
+            [1, { label: 'Button 1', index: 1 }],
+            [2, { label: 'Button 2', index: 2 }],
+            [3, { label: 'Button 3', index: 3 }],
+            [4, { label: 'Button 4', index: 4 }],
+        ]),
+    ],
     // TODO
     /*
     ['Pico4Button', new Map([
     ])],
-    ['Pico4ButtonScene', new Map([
-    ])],
-    ['Pico4ButtonZone', new Map([
-    ])],
     ['Pico4Button2Group', new Map([
     ])],
    */

src/platform.ts

@@ -138,7 +138,10 @@ export class LutronCasetaLeap
             case 'Pico2Button':
             case 'Pico2ButtonRaiseLower':
             case 'Pico3Button':
-            case 'Pico3ButtonRaiseLower': {
+            case 'Pico3ButtonRaiseLower':
+            case 'Pico4ButtonZone':
+            case 'Pico4ButtonScene':
+            {
                 this.log.info(
                     'Restoring Pico remote',
                     accessory.context.device.FullyQualifiedName.join(' '),
@@ -235,7 +238,10 @@ export class LutronCasetaLeap
             case 'Pico2Button':
             case 'Pico2ButtonRaiseLower':
             case 'Pico3Button':
-            case 'Pico3ButtonRaiseLower': {
+            case 'Pico3ButtonRaiseLower':
+            case 'Pico4ButtonScene':
+            case 'Pico4ButtonZone':
+            {
                 this.log.info('Found a new', d.DeviceType, 'remote', fullName);
 
                 // SIDE EFFECT: this constructor mutates the accessory object
@@ -264,8 +270,6 @@ export class LutronCasetaLeap
             // TODO
             // known devices that are not exposed to homekit, pending support
             case 'Pico4Button':
-            case 'Pico4ButtonScene':
-            case 'Pico4ButtonZone':
             case 'Pico4Button2Group':
             case 'FourGroupRemote': {
                 this.log.info('Device type', d.DeviceType, 'not yet supported, skipping setup');