/// <summary>
/// Convert this CurrentSession into a PastSession.
/// If we have not had at least 2 temperature readings, this will
/// return null.
/// </summary>
public PastSession EndSession()
{
// If we don't have a temperature *range* (i.e. at least 2), no point in recording the session
if (TempReadings.Count < 2)
{
return(null);
}
return(PastSession.FromFields(StartTime, DateTime.Now, FirstTemp.Value, LatestTemp.Value));
}
/// <summary>
/// Create a new PastSession from the required fields.
/// </summary>
public static PastSession FromFields(DateTime StartDateTime, DateTime FinalDateTime, float StartTemp, float FinalTemp)
{
PastSession session = new PastSession();
session.ID = 0;
session.StartDateTimestamp = DateTimeToUnixTimestamp(StartDateTime);
session.FinalDateTimestamp = DateTimeToUnixTimestamp(FinalDateTime);
session.StartTemp = StartTemp;
session.FinalTemp = FinalTemp;
return(session);
}
/// <summary>
/// Save a new PastSession or update an existing PastSession in the
/// database.
/// </summary>
public int SaveSession(PastSession session)
{
InitDatabase();
int retval;
if (session.ID != 0)
{
retval = conn.Update(session);
}
else
{
retval = conn.Insert(session);
}
DatabaseChangeListeners?.Invoke();
return(retval);
}