helene/server/event.js

Real-time Web Apps for Node.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Event = void 0;
const utils_1 = require("../utils");
class Event {
    uuid;
    name;
    isProtected;
    channel;
    server;
    cluster;
    shouldSubscribe = async () => true;
    constructor(name, server, channel, opts) {
        this.uuid = utils_1.Presentation.uuid();
        this.name = name;
        this.server = server;
        this.channel = channel;
        this.isProtected = opts?.protected ?? false;
        if (opts?.user) {
            this.isProtected = true;
            this.shouldSubscribe = async function (client, event, channel) {
                if (!client.userId)
                    return false;
                return channel === client.userId.toString();
            };
        }
        if (opts?.shouldSubscribe) {
            this.shouldSubscribe = opts.shouldSubscribe;
        }
        this.cluster = Boolean(opts?.cluster);
    }
    handler(channel, params) {
        const payload = utils_1.Presentation.encode({
            uuid: utils_1.Presentation.uuid(),
            type: utils_1.PayloadType.EVENT,
            event: this.name,
            channel: channel.channelName,
            params,
        });
        if (this.cluster && this.server?.redisTransport?.pub) {
            this.server.redisTransport
                .publish(this.name, channel.channelName, payload)
                .catch(console.error);
            return;
        }
        channel.propagate(this.name, payload);
    }
}
exports.Event = Event;
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