public void RemoveScan(ScanInfo scanInfo)
{
// TODO: Should check that user has not entered the next checkpoint already. Propably remove needs to go through some validation aggregate.
Func <CheckpointScan, bool> match = m => m.PersonId.Equals(scanInfo.PersonId, StringComparison.OrdinalIgnoreCase);
var readingIn = this.State.ReadingsIn.FirstOrDefault(match);
var readingOut = this.State.ReadingsOut.FirstOrDefault(match);
if (readingIn == null && readingOut == null)
{
Trace.TraceWarning("Scan to remove not found");
return;
}
if (this.State.CheckpointType == CheckpointType.Passthrough &&
readingIn != null && readingOut != null)
{
// Remove both in and out
this.RemoveAttendeeScanIn(scanInfo, readingIn.ScanId);
this.RemoveAttendeeScanOut(scanInfo, readingOut.ScanId);
return;
}
// Not a passthrough, decide which to remove
if (readingOut != null)
{
this.RemoveAttendeeScanOut(scanInfo, readingOut.ScanId);
}
else
{
this.RemoveAttendeeScanIn(scanInfo, readingIn.ScanId);
}
}
public void ChangeScanTime(ScanInfo scanInfo, ScanTimeType scanTimeType)
{
var newTime = scanInfo.ScanTimestamp;
Func <CheckpointScan, bool> match = r => r.PersonId.Equals(scanInfo.PersonId, StringComparison.OrdinalIgnoreCase);
var readingIn = this.State.ReadingsIn.FirstOrDefault(match);
var readingOut = this.State.ReadingsOut.FirstOrDefault(match);
switch (scanTimeType)
{
case ScanTimeType.In:
if (readingIn == null)
{
Trace.TraceWarning("Scan to change time not found (in).");
return;
}
if (readingOut != null && readingOut.TimeStamp < newTime)
{
this.Apply(new AttendeeScanOutPreceedsScanIn(scanInfo));
return;
}
this.Apply(new AttendeeScanInTimeChanged(scanInfo, newTime));
break;
case ScanTimeType.Out:
if (readingOut == null)
{
Trace.TraceWarning("Scan to change time not found (out).");
return;
}
if (readingIn != null && readingIn.TimeStamp > newTime)
{
this.Apply(new AttendeeScanOutPreceedsScanIn(scanInfo));
return;
}
this.Apply(new AttendeeScanOutTimeChanged(scanInfo, newTime));
break;
case ScanTimeType.Passthrough:
if (this.State.CheckpointType == CheckpointType.Passthrough)
{
if (readingIn == null)
{
Trace.TraceWarning("Scan to change time not found (passthrough).");
return;
}
this.Apply(new AttendeePassthroughScanTimeChanged(scanInfo, newTime));
}
break;
default:
throw new ArgumentOutOfRangeException("scanTimeType");
}
}
private void RemoveAttendeeScanOut(ScanInfo scanInfo, string scanId)
{
var removeEvent = new AttendeeScanOutRemoved(scanInfo)
{
ScanId = scanId
};
this.Apply(removeEvent);
}
public void AddScan(ScanInfo scanInfo)
{
if (this.State.CheckpointType == CheckpointType.Start && this.State.ReadingsOut.Count == 0)
{
// This is the first scan, emit information that happening has started
this.Apply(new FirstAttendeeForHappeningScanned(scanInfo.HappeningId));
}
const int DoubleReadingThresholdSeconds = 5;
Func <CheckpointScan, bool> match = reading => reading.PersonId.Equals(scanInfo.PersonId);
AttendeeScanBase scan;
var inReading = this.State.ReadingsIn.FirstOrDefault(match);
if (inReading != null)
{
if (this.State.ReadingsOut.Any(match))
{
// Both in and out readings already exists, do nothing
scan = new AttendeeDoubleScan(scanInfo)
{
Message = "Sekä sisään- että uloslukema on jo tallennettu."
};
}
else
{
// Check, that this is not a double reading
var difference = scanInfo.Timestamp.Subtract(inReading.TimeStamp);
if (difference < TimeSpan.FromSeconds(DoubleReadingThresholdSeconds))
{
scan = new AttendeeDoubleScan(scanInfo)
{
DifferenceSinceLastRead = difference.TotalSeconds,
Message =
string.Format(
CultureInfo.CurrentCulture,
"Luku tapahtui alle {0} s kuluessa edellisestä.",
DoubleReadingThresholdSeconds)
};
}
else
{
// Check that this out reading is not before in reading
if (inReading.TimeStamp > scanInfo.ScanTimestamp)
{
scan = new AttendeeScanOutPreceedsScanIn(scanInfo);
}
else
{
scan = new AttendeeScanOut(scanInfo);
}
}
}
}
else
{
if (this.State.CheckpointType == CheckpointType.Passthrough)
{
scan = new AttendeePassthroughScan(scanInfo);
}
else
{
// This is the first reading for this person on this checkpoint
scan = this.State.CheckpointType == CheckpointType.Start
? (AttendeeScanBase) new AttendeeScanOut(scanInfo)
: new AttendeeScanIn(scanInfo);
}
}
// Ensure, that event goes to the same checkpoint (should be correct already)
scan.CheckpointId = this.State.Id;
this.Apply(scan);
if (this.State.CheckpointType == CheckpointType.Start && scan is AttendeeScanOut)
{
this.Apply(new AttendeeScannedAtStartCheckpoint(scanInfo.HappeningId, scanInfo.PersonId));
}
if (this.State.CheckpointType == CheckpointType.Finish && scan is AttendeeScanIn)
{
this.Apply(new AttendeeScannedAtFinishCheckpoint(scanInfo.HappeningId, scanInfo.PersonId));
}
}
public void RemoveQuit(ScanInfo scanInfo)
{
// TODO: Should check that user has not entered the next checkpoint already. Propably quit needs to go through some validation aggregate.
this.Apply(new AttendeeQuitRemoved(scanInfo));
}