public Result GetNextQuestion()
{
if (this.Current == null || DateTime.Now > this.Expiry)
{
using (var repository = new Repository())
{
repository.BeginTransaction();
var datapoint = repository.GetNextDatapoint();
if (datapoint == null)
return null;
repository.SetDatapointUsed(datapoint.ID);
var related = repository.GetRelatedDatapoints(datapoint.ID);
this.Current = new Result();
this.Current.Focus = datapoint;
this.Current.Related = related;
this.Expiry = DateTime.Now.AddSeconds(Constants.QuestionTimeout);
repository.CommitTransaction();
}
}
this.Current.ExpiresIn = this.Expiry.Subtract(DateTime.Now).TotalSeconds;
return this.Current;
}
