public void Enqueue(AttendanceLog model)
{
var message = JsonConvert.SerializeObject(model);
var id = _db.Enqueue(model.Id, message);
_hub.PublishAsync(new EventMessage(EventType.SyncWeb, id, model.Id, message));
}
public AttendanceStatus CalculateStatus(AttendanceLog lastLog)
{
if (lastLog == null)
{
return(AttendanceStatus.CheckIn);
}
var diff = LogDate.Subtract(lastLog.LogDate);
if (diff.TotalHours >= 16)
{
// if new log date is more than 16 hours after last log date.
// system think it is one check in.
return(AttendanceStatus.CheckIn);
}
if (diff.TotalHours < 16 && diff.TotalHours > 0.5)
{
if (lastLog.LogStatus == AttendanceStatus.CheckIn)
{
return(AttendanceStatus.CheckOut);
}
if (lastLog.LogStatus == AttendanceStatus.CheckOut)
{
return(AttendanceStatus.CheckIn);
}
}
if (diff.TotalHours < 0.5)
{
// time range is less than 30 minutes, system think it is a duplicated attendance log.
if (lastLog.LogStatus == AttendanceStatus.CheckIn)
{
return(AttendanceStatus.CheckIn);
}
if (lastLog.LogStatus == AttendanceStatus.CheckOut)
{
return(AttendanceStatus.CheckOut);
}
}
throw new NotSupportedException("Unknown attendance status.");
}
