rxpoweredup
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A Typescript RxJS-based library for controlling LEGO Powered UP hubs & peripherals.
39 lines (38 loc) • 2.17 kB
JavaScript
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
return function (target, key) { decorator(target, key, paramIndex); }
};
import { EMPTY, fromEvent, map, of, share, switchMap } from 'rxjs';
import { inject, injectable } from 'tsyringe';
import { InboundMessageDissector } from './inbound-message-dissector';
let CharacteristicDataStreamFactory = class CharacteristicDataStreamFactory {
dissector;
characteristicValueChangedEventName = 'characteristicvaluechanged';
constructor(dissector) {
this.dissector = dissector;
}
create(characteristic, config) {
return fromEvent(characteristic, this.characteristicValueChangedEventName).pipe(map((e) => this.getValueFromEvent(e)), switchMap((value) => (value ? of(value) : EMPTY)), map((uint8Message) => this.dissector.dissect(uint8Message)), map((message) => config.incomingMessageMiddleware.reduce((acc, middleware) => middleware.handle(acc), message)), share());
}
getValueFromEvent(event) {
const buffer = event.target.value?.buffer;
if (!buffer) {
return null;
}
return new Uint8Array(buffer);
}
};
CharacteristicDataStreamFactory = __decorate([
injectable(),
__param(0, inject(InboundMessageDissector)),
__metadata("design:paramtypes", [InboundMessageDissector])
], CharacteristicDataStreamFactory);
export { CharacteristicDataStreamFactory };