fix: ensure we always work with lowercase UUIDs so that callbacks always work correctly

Author: farfromrefug

src/ble/index.common.ts

@@ -54,8 +54,9 @@ export function bluetoothEnabled(target: Object, propertyKey: string, descriptor
 // BT assigned-numbers: https://www.bluetooth.com/specifications/assigned-numbers/
 const patternBtAssignedNumbers = /0000(.{4})-0000-1000-8000-00805f9b34fb/i;
 export function shortenUuidIfAssignedNumber(uuid: string) {
-    const matcher = uuid.toLowerCase().match(patternBtAssignedNumbers);
-    return (matcher && matcher.length > 0 ? matcher[1] : uuid);
+    const lUUID = uuid.toLowerCase();
+    const matcher = lUUID.match(patternBtAssignedNumbers);
+    return matcher && matcher.length > 0 ? matcher[1] : lUUID;
 }
 
 export function prepareArgs(target: Object, propertyKey: string, descriptor: TypedPropertyDescriptor<any>) {
@@ -70,7 +71,7 @@ export function prepareArgs(target: Object, propertyKey: string, descriptor: Typ
                 const value = paramsToCheck[k];
                 if (value) {
                     if (Array.isArray(value)) {
-                        paramsToCheck[k] = paramsToCheck[k].map(v => shortenUuidIfAssignedNumber(v));
+                        paramsToCheck[k] = paramsToCheck[k].map((v) => shortenUuidIfAssignedNumber(v));
                     } else {
                         paramsToCheck[k] = shortenUuidIfAssignedNumber(paramsToCheck[k] ?? '');
                     }
@@ -532,7 +533,7 @@ export interface DiscoverCharacteristicsOptions extends DiscoverOptions {
 }
 
 // tslint:disable-next-line:no-empty-interface
-export interface StopNotifyingOptions extends CRUDOptions { }
+export interface StopNotifyingOptions extends CRUDOptions {}
 
 export interface StartNotifyingOptions extends CRUDOptions {
     onNotify: (data: ReadResult) => void;