cbp-lib/src/event/AccessTokenEvent.js

Libraries for cbp

'use strict'

import { BehaviorSubject } from "rxjs"
import { Timer } from "../_helpers/timer"
import { Log } from "../_helpers/Log"

const accessTokenExpiringSubject = new BehaviorSubject(null)
const accessTokenExpiredSubject = new BehaviorSubject(null)
const DefaultAccesTokenExpiringNotification = 60

export class AccessTokenEvent {
    constructor({
        accessTokenExpiringNotificationTime = DefaultAccesTokenExpiringNotification,
        accessTokenExpiringTimer = new Timer(this.addAccessTokenExpiring.bind(this), "Access Token Expiring"),
        accessTokenExpiredTimer = new Timer(this.addAccessTokenExpired.bind(this), "Access Token Expired"),
        _accessTokenExpiringEvent = accessTokenExpiringSubject.asObservable(),
        _accessTokenExpiredEvent = accessTokenExpiredSubject.asObservable()
    } = {}) {
        Log.debug("AccessToken: Initialize..")
        this._accessTokenExpiringNotificationTime = accessTokenExpiringNotificationTime
        this._accessTokenExpiringTimer = accessTokenExpiringTimer
        this._accessTokenExpiredTimer = accessTokenExpiredTimer
        this.accessTokenExpiringEvent = _accessTokenExpiringEvent
        this.accessTokenExpiredEvent = _accessTokenExpiredEvent
    }

    load(container) {
        Log.debug("AccessToken: Container" + container)
        if (container.access_token && container.expires_in !== undefined) {
            let duration = container.expires_in
            Log.debug("AccessToken: Duration " + duration)
            if (duration > 0) {
                let expiring = duration - this._accessTokenExpiringNotificationTime;
                if (expiring <= 0){
                    expiring = 1;
                }
                
                Log.debug("AccessTokenEvent.load: registering expiring timer in: " + expiring);
                this._accessTokenExpiringTimer.init(expiring);
            }
            else {
                Log.debug("AccessTokenEventsload: canceling existing expiring timer becase we're past expiration.");
                this._accessTokenExpiringTimer.cancel();
            }

            let expired = duration + 1;
            Log.debug("AccessTokenEvent.load: registering expired timer in: " + expired);
            this._accessTokenExpiredTimer.init(expired);
        }
        else {
            this._accessTokenExpiringTimer.cancel();
            this._accessTokenExpiredTimer.cancel();
        }
    }

    unload() {
        Log.debug("AccessTokenEvent.unload: canceling existing access token timers");
        this._accessTokenExpiringTimer.cancel();
        this._accessTokenExpiredTimer.cancel();
    }

    addAccessTokenExpiring(data) {
        Log.debug("AccessTokenEvent.addAccessTokenExpiring: " + data)
        accessTokenExpiringSubject.next(data)
    }

    addAccessTokenExpired(data) {
        Log.debug("AccessTokenEvent.addAccessTokenExpired: " + data)
        accessTokenExpiredSubject.next(data)
    }
}