import { Injectable } from '@angular/core';
import { Resolve } from '@angular/router';
import { ServiceWorkerService } from '@core/services/service-worker.service';
import { environment } from '@environment';

@Injectable({ providedIn: 'root' })
export class ServiceWorkerUpdateResolver implements Resolve<void> {
  constructor (
    private swService: ServiceWorkerService
  ) { }

  // block any subsequent parts of the app from loading until we've checked for an update
  async resolve () {
    if (environment.production) {
      this.swService.startPolling();

      this.swService.checkForUpdate();
    }
  }
}