rxpoweredup/src/messenger/outbound-messenger/task-visitor/task-visitor.js

A Typescript RxJS-based library for controlling LEGO Powered UP hubs & peripherals.

import { Subscription } from 'rxjs';
export class TaskVisitor {
    feedbackStream;
    logger;
    commands = new Map();
    subscription = new Subscription();
    constructor(feedbackStream, logger, feedbackHandler) {
        this.feedbackStream = feedbackStream;
        this.logger = logger;
        this.subscription.add(this.feedbackStream.subscribe((message) => feedbackHandler.handlePortOutputCommandFeedback(this.commands.get(message.portId) ?? [], message.feedback)));
    }
    visitTaskPortOutputCommand(task) {
        const portCommands = this.commands.get(task.portId);
        if (!portCommands) {
            this.commands.set(task.portId, [task]);
        }
        else {
            portCommands.push(task);
        }
        task.result.subscribe({
            complete: () => this.removePortOutputCommand(task),
            error: () => this.removePortOutputCommand(task),
        });
    }
    visitTaskWithResponse() {
        return void 0;
    }
    visitTaskWithoutResponse() {
        return void 0;
    }
    dispose() {
        this.subscription.unsubscribe();
        this.logger.debug('Task visitor disposed');
    }
    removePortOutputCommand(task) {
        const portCommands = this.commands.get(task.portId);
        if (!portCommands) {
            return;
        }
        if (portCommands.length === 1) {
            this.commands.delete(task.portId);
            return;
        }
        const index = portCommands.indexOf(task);
        if (index >= 0) {
            portCommands.splice(index, 1);
        }
    }
}