private NetworkSpeedModel(Database database)
{
_resultsService = SpeedTestResultsService.Create(database);
Graph = NetworkSpeedGraphModel.Create(_resultsService);
OnPropertyChanged(nameof(Graph));
_speedTestWorker = new SpeedTestWorker(_resultsService);
_speedTestWorker.NewResult += UpdateResults;
}
public static NetworkSpeedGraphModel Create(SpeedTestResultsService resultsService) => _instance ?? (_instance = new NetworkSpeedGraphModel(resultsService));