/* xeslint-disable */

let keepChecking = false;
const DEFAULT_POLLING_INTERVAL = 60000;

//const DEFAULT_POLLING_INTERVAL = 5000;
const MAX_POLLING_INTERVAL = 10 * 60 * 1000; //10 minutes maximum wait time

export default {
  async startPolling() {
    if (keepChecking == true) {
      return;
    }
    keepChecking = true;
    //initial delay so it fetchs "immediately"
    let pollingInterval = 3000;
    let status = null;
    while (keepChecking == true) {
      try {
        await window.$gz.util.sleepAsync(pollingInterval);
        if (keepChecking && window.$gz.store.state.authenticated) {
          status = await window.$gz.api.get("notify/new-count");
          if (status.error) {
            throw new Error(status.error);
          } else {
            window.$gz.store.commit("setNewNotificationCount", status.data);
            //success so go to default in case it was changed by an error
            pollingInterval = DEFAULT_POLLING_INTERVAL;
          }
        } else {
          keepChecking = false;
        }
      } catch (error) {
        //fixup if fails on very first iteration with initial short polling interval
        if (pollingInterval < DEFAULT_POLLING_INTERVAL) {
          pollingInterval = DEFAULT_POLLING_INTERVAL;
        }
        pollingInterval *= 1.5;
        if (pollingInterval > MAX_POLLING_INTERVAL) {
          pollingInterval = MAX_POLLING_INTERVAL;
        }
      }
    }
  },
  stopPolling() {
    keepChecking = false;
  }
};