kod-temp/dist/esm/lib/utils/Heartbeat.js

Workano Communications SDK

const DEFAULT_HEARTBEAT_DELAY = 2000;
const DEFAULT_HEARTBEAT_TIMEOUT = 5000;
const DEFAULT_MAX_HEARTBEATS = 3;
class Heartbeat {
    heartbeatDelay;
    heartbeatTimeout;
    maxHeartbeats;
    hasHeartbeat;
    _heartbeatDelayTimeout;
    _heartbeatNotReceivedTimeout;
    _heartbeatTries;
    _sendHeartbeatCallback;
    _onTimeoutCallback;
    constructor(heartbeatDelay = DEFAULT_HEARTBEAT_DELAY, heartbeatTimeout = DEFAULT_HEARTBEAT_TIMEOUT, maxHeartbeats = DEFAULT_MAX_HEARTBEATS) {
        this.heartbeatDelay = heartbeatDelay;
        this.heartbeatTimeout = heartbeatTimeout;
        this.maxHeartbeats = maxHeartbeats;
        this.hasHeartbeat = false;
        this._heartbeatTries = 0;
    }
    setSendHeartbeat(cb) {
        this._sendHeartbeatCallback = cb;
    }
    setOnHeartbeatTimeout(cb) {
        this._onTimeoutCallback = cb;
    }
    stop() {
        this.hasHeartbeat = false;
        if (this._heartbeatNotReceivedTimeout) {
            clearTimeout(this._heartbeatNotReceivedTimeout);
        }
        if (this._heartbeatDelayTimeout) {
            clearTimeout(this._heartbeatDelayTimeout);
        }
    }
    start() {
        this.stop();
        this.hasHeartbeat = true;
        this._heartbeatTries = 0;
        this._sendHeartbeat();
    }
    onHeartbeat() {
        this._clearTimeouts();
        if (!this.hasHeartbeat) {
            return;
        }
        this._sendHeartbeat();
    }
    _sendHeartbeat() {
        if (this._heartbeatTries >= this.maxHeartbeats) {
            return;
        }
        this._clearTimeouts();
        this._heartbeatDelayTimeout = setTimeout(() => {
            this._heartbeatTries++;
            if (this._sendHeartbeatCallback) {
                this._sendHeartbeatCallback();
            }
        }, this.heartbeatDelay);
        if (this._onTimeoutCallback) {
            this._heartbeatNotReceivedTimeout = setTimeout(this._onTimeoutCallback, this.heartbeatTimeout);
        }
    }
    _clearTimeouts() {
        if (this._heartbeatNotReceivedTimeout) {
            clearTimeout(this._heartbeatNotReceivedTimeout);
        }
        if (this._heartbeatDelayTimeout) {
            clearTimeout(this._heartbeatDelayTimeout);
        }
    }
}
export default Heartbeat;