public SpecialEpisodeFormViewModel(
SpecialEpisode episode,
SeriesFormViewModel parent,
IObservable <int> maxSequenceNumber,
ResourceManager?resourceManager,
IScheduler?scheduler = null)
: base(parent, maxSequenceNumber, resourceManager, scheduler)
{
this.SpecialEpisode = episode;
this.CopyProperties();
this.ChannelRule = this.ValidationRule(
vm => vm.Channel, channel => !String.IsNullOrWhiteSpace(channel), "ChannelEmpty");
this.YearRule = this.ValidationRule(vm => vm.Year, SeriesMinYear, SeriesMaxYear, nameof(this.Year));
this.PosterUrlRule = this.ValidationRule(vm => vm.PosterUrl, url => url.IsUrl(), "PosterUrlInvalid");
this.InitializeValueDependencies();
this.CanAlwaysDelete();
this.EnableChangeTracking();
}
public SeasonFormViewModel(
Season season,
SeriesFormViewModel parent,
IObservable <int> maxSequenceNumber,
ResourceManager?resourceManager = null,
IScheduler?scheduler = null)
: base(parent, maxSequenceNumber, resourceManager, scheduler)
{
this.Season = season;
var canDeletePeriod = this.periodsSource.Connect()
.Count()
.Select(count => count > MinPeriodCount);
this.periodsSource.Connect()
.Sort(SortExpressionComparer <Period> .Ascending(period => period.StartYear)
.ThenByAscending(period => period.StartMonth)
.ThenByAscending(period => period.EndYear)
.ThenByAscending(period => period.EndMonth))
.Transform(period => this.CreatePeriodForm(period, canDeletePeriod))
.Bind(out this.periods)
.DisposeMany()
.Subscribe();
this.CopyProperties();
this.ChannelRule = this.ValidationRule(
vm => vm.Channel, channel => !String.IsNullOrWhiteSpace(channel), "ChannelEmpty");
this.PeriodsNonOverlapping =
this.periods.ToObservableChangeSet()
.AutoRefreshOnObservable(pvm => pvm.Changed)
.Select(_ => this.AreAllPeriodsNonOverlapping());
this.WhenAnyValue(vm => vm.CurrentPosterIndex)
.Select(index => this.Season.Periods[index].PosterUrl)
.BindTo(this, vm => vm.CurrentPosterUrl);
var canAddPeriod = this.Periods.ToObservableChangeSet()
.AutoRefreshOnObservable(period => period.Valid)
.ToCollection()
.Select(periods => periods.Count < MaxPeriodCount && periods.All(period => !period.HasErrors))
.CombineLatest(this.PeriodsNonOverlapping, (a, b) => a && b);
this.AddPeriod = ReactiveCommand.Create(this.OnAddPeriod, canAddPeriod);
var canSwitchToNextPoster = this.WhenAnyValue(vm => vm.CurrentPosterIndex)
.Merge(this.Save.Select(_ => this.CurrentPosterIndex))
.Select(index =>
index != this.Season.Periods.Count - 1 &&
this.Season.Periods.Skip(index + 1).Any(period => period.PosterUrl != null));
var canSwitchToPreviousPoster = this.WhenAnyValue(vm => vm.CurrentPosterIndex)
.Merge(this.Save.Select(_ => this.CurrentPosterIndex))
.Select(index =>
index != 0 &&
this.Season.Periods.Take(index).Any(period => period.PosterUrl != null));
this.SwitchToNextPoster = ReactiveCommand.Create(
() => this.SetCurrentPosterIndex(index => index + 1), canSwitchToNextPoster);
this.SwitchToPreviousPoster = ReactiveCommand.Create(
() => this.SetCurrentPosterIndex(index => index - 1), canSwitchToPreviousPoster);
this.Save.Discard()
.Merge(this.GoToSeries.Discard())
.Delay(TimeSpan.FromMilliseconds(500), this.Scheduler)
.Subscribe(() => this.CurrentPosterIndex = 0);
this.CanAlwaysDelete();
this.EnableChangeTracking();
}