public async Task ExposureStateUpdatedAsync(IEnumerable <ExposureWindow> windows,
IEnumerable <DailySummary>?summaries)
{
Debug.WriteLine("ExposureStateUpdatedAsync is called");
List <DateTime> validDates = ExposureDetectedHelper.DeleteDatesOfExposureOlderThan14DaysAndReturnNewList();
bool shouldSendMessage = false;
List <DateTime> datesOfExposuresOverThreshold = new List <DateTime>();
foreach (DailySummary dailySummary in summaries)
{
if (ExposureDetectedHelper.RiskInDailySummaryAboveThreshold(dailySummary) &&
ExposureDetectedHelper.HasNotShownExposureNotificationForDate(dailySummary.Timestamp.Date,
validDates))
{
datesOfExposuresOverThreshold.Add(dailySummary.Timestamp.Date);
shouldSendMessage = true;
}
}
if (shouldSendMessage)
{
await MessageUtils.CreateMessage(this);
await ExposureDetectedHelper.UpdateDatesOfExposures(datesOfExposuresOverThreshold);
}
ServiceLocator.Current.GetInstance <IDeveloperToolsService>().SaveExposureWindows(windows);
ServiceLocator.Current.GetInstance <IDeveloperToolsService>().SaveLastDailySummaries(summaries);
}
public void HasNotShownExposureNotificationForDate_ReturnsTrueIfTimeStampHasNotYetBeenSaved(string locale)
{
Thread.CurrentThread.CurrentCulture = new CultureInfo(locale);
SystemTime.ResetDateTime();
List <DateTime> previouslySavedDates = new List <DateTime>();
previouslySavedDates.Add(SystemTime.Now().AddDays(0).Date);
previouslySavedDates.Add(SystemTime.Now().AddDays(-1).Date);
previouslySavedDates.Add(SystemTime.Now().AddDays(-2).Date);
bool savedBefore =
ExposureDetectedHelper.HasNotShownExposureNotificationForDate(SystemTime.Now().AddDays(-1),
previouslySavedDates);
bool neverSaved =
ExposureDetectedHelper.HasNotShownExposureNotificationForDate(SystemTime.Now().AddDays(-3),
previouslySavedDates);
Assert.False(savedBefore);
Assert.True(neverSaved);
}