public DerivedProgressionManager(IObservableList <IProgressionViewer> subProgs, ILoggerFactory loggerFactory)
{
this.logger = loggerFactory.CreateLogger <DerivedProgressionManager>();
subProgs
.Connect()
.ToCollection()
.Select(progs => progs.Select(prog => prog.WhenAnyValue(
vm => vm.Title,
vm => vm.State,
vm => vm.Target,
vm => vm.Current,
vm => vm.Details,
vm => vm.Weight,
ProgressionSnapshot.Factory)))
.Select(Observable.CombineLatest)
.Switch()
.Subscribe(progs =>
{
this.State = JobStateHelper.MergeStates(progs.Select(prog => prog.State));
Target = progs.Sum(prog => prog.Weight) * Resolution;
Current = (int)progs.Sum(prog => (decimal)prog.Current / (decimal)prog.Target * Weight * Resolution);
var newDetails = progs.FirstOrDefault(x => x.State == JobState.InProgress).Details;
if (State.IsIn(JobState.ToDo, JobState.Done))
{
newDetails = string.Empty;
}
if (State == JobState.Failed)
{
newDetails = $"Job Failed.{Environment.NewLine + progs.FirstOrDefault(x => x.State == JobState.Failed).Details}";
logger.LogError("job failed: {0}", newDetails);
}
Details = newDetails;
logger.LogTrace("extra info:" + subProgs.Count + Environment.NewLine +
string.Join(Environment.NewLine, progs.Select(prog => $" {prog.Title} | {prog.State} | {prog.Current}/{prog.Target} : {prog.Details}"))
);
logger.LogTrace("updating progress - {0}subs: {1}/{2} ({3}): {4}", progs.Count(), Current, Target, State, Details);
});
}
