rxpoweredup
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A Typescript RxJS-based library for controlling LEGO Powered UP hubs & peripherals.
77 lines (76 loc) • 3.09 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;
};
import { injectable } from 'tsyringe';
import { AttachIoEvent, MessageType } from '../../constants';
import { readNumberFromUint8LEArray } from '../../helpers';
let AttachedIoReplyParser = class AttachedIoReplyParser {
messageType = MessageType.attachedIO;
portIdOffset = 0;
eventIdOffset = 1;
ioTypeIdOffsetByte0 = 2;
ioTypeIdOffsetByte1 = 3;
portIdAOffset = 4;
portIdBOffset = 5;
parseMessage(rawMessage) {
const payload = rawMessage.payload;
switch (this.getEventId(payload)) {
case AttachIoEvent.Attached:
return this.composeAttachReply(payload);
case AttachIoEvent.Detached:
return this.composeDetachReply(payload);
case AttachIoEvent.AttachedVirtual:
return this.composeAttachVirtualIO(payload);
}
}
composeAttachReply(payload) {
return {
messageType: MessageType.attachedIO,
portId: this.getPortId(payload),
event: AttachIoEvent.Attached,
ioTypeId: this.getIoTypeId(payload),
hardwareRevision: this.decodeVersion(payload.slice(4, 7)),
softwareRevision: this.decodeVersion(payload.slice(8, 11)),
};
}
composeDetachReply(payload) {
return {
messageType: MessageType.attachedIO,
portId: this.getPortId(payload),
event: AttachIoEvent.Detached,
};
}
composeAttachVirtualIO(payload) {
return {
messageType: MessageType.attachedIO,
portId: this.getPortId(payload),
event: AttachIoEvent.AttachedVirtual,
ioTypeId: this.getIoTypeId(payload),
portIdA: payload[this.portIdAOffset],
portIdB: payload[this.portIdBOffset],
};
}
getIoTypeId(data) {
return data[this.ioTypeIdOffsetByte0] + (data[this.ioTypeIdOffsetByte1] << 8);
}
getPortId(data) {
return data[this.portIdOffset];
}
getEventId(data) {
return data[this.eventIdOffset];
}
decodeVersion(data) {
const majorVersion = data[0] >> 4;
const minorVersion = data[0] & 0b00001111;
const bugFixingNumber = data[1];
const buildNumber = readNumberFromUint8LEArray(data.slice(2, 4));
return `${majorVersion}.${minorVersion}.${bugFixingNumber}.${buildNumber}`;
}
};
AttachedIoReplyParser = __decorate([
injectable()
], AttachedIoReplyParser);
export { AttachedIoReplyParser };