camstreamerlib/VapixEvents.js

Helper library for CamStreamer ACAP applications.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.VapixEvents = void 0;
const eventemitter2_1 = require("eventemitter2");
const WsClient_1 = require("./internal/WsClient");
class VapixEvents extends eventemitter2_1.EventEmitter2 {
    constructor(options = {}) {
        var _a, _b, _c, _d, _e, _f;
        super();
        this.tls = (_a = options.tls) !== null && _a !== void 0 ? _a : false;
        this.tlsInsecure = (_b = options.tlsInsecure) !== null && _b !== void 0 ? _b : false;
        this.ip = (_c = options.ip) !== null && _c !== void 0 ? _c : '127.0.0.1';
        this.port = (_d = options.port) !== null && _d !== void 0 ? _d : (this.tls ? 443 : 80);
        this.user = (_e = options.user) !== null && _e !== void 0 ? _e : 'root';
        this.pass = (_f = options.pass) !== null && _f !== void 0 ? _f : '';
        this.createWsClient();
        eventemitter2_1.EventEmitter2.call(this);
    }
    connect() {
        this.ws.open();
    }
    disconnect() {
        this.ws.close();
    }
    createWsClient() {
        const options = {
            tls: this.tls,
            tlsInsecure: this.tlsInsecure,
            user: this.user,
            pass: this.pass,
            ip: this.ip,
            port: this.port,
            address: '/vapix/ws-data-stream?sources=events',
        };
        this.ws = new WsClient_1.WsClient(options);
        this.ws.on('open', () => {
            const topics = [];
            const eventNames = this.eventNames();
            for (let i = 0; i < eventNames.length; i++) {
                if (!this.isReservedEventName(eventNames[i])) {
                    const topic = {
                        topicFilter: eventNames[i],
                    };
                    topics.push(topic);
                }
            }
            const topicFilter = {
                apiVersion: '1.0',
                method: 'events:configure',
                params: {
                    eventFilterList: topics,
                },
            };
            this.ws.send(JSON.stringify(topicFilter));
        });
        this.ws.on('message', (data) => {
            const dataJSON = JSON.parse(data.toString());
            if (dataJSON.method === 'events:configure') {
                if (dataJSON.error === undefined) {
                    this.emit('open');
                }
                else {
                    this.emit('error', dataJSON.error);
                    this.disconnect();
                }
                return;
            }
            const eventName = dataJSON.params.notification.topic;
            this.emit(eventName, dataJSON);
        });
        this.ws.on('error', (error) => {
            this.emit('error', error);
        });
        this.ws.on('close', () => {
            this.emit('close');
        });
    }
    isReservedEventName(eventName) {
        return eventName === 'open' || eventName === 'close' || eventName === 'error';
    }
}
exports.VapixEvents = VapixEvents;