fix discard to fill calculation (#1308)

ErsatzTV.Core/Scheduling/ChronologicalMediaCollectionEnumerator.cs

@@ -15,7 +15,7 @@ public sealed class ChronologicalMediaCollectionEnumerator : IMediaCollectionEnu
     {
         _sortedMediaItems = mediaItems.OrderBy(identity, new ChronologicalMediaComparer()).ToList();
         _lazyMinimumDuration = new Lazy<Option<TimeSpan>>(
-            () => _sortedMediaItems.Bind(i => i.GetDuration()).HeadOrNone());
+            () => _sortedMediaItems.Bind(i => i.GetDuration()).OrderBy(identity).HeadOrNone());
 
         State = new CollectionEnumeratorState { Seed = state.Seed };
 

ErsatzTV.Core/Scheduling/CustomOrderCollectionEnumerator.cs

@@ -26,7 +26,7 @@ public class CustomOrderCollectionEnumerator : IMediaCollectionEnumerator
             .Map(ci => mediaItems.First(mi => mi.Id == ci.MediaItemId))
             .ToList();
         _lazyMinimumDuration = new Lazy<Option<TimeSpan>>(
-            () => _sortedMediaItems.Bind(i => i.GetDuration()).HeadOrNone());
+            () => _sortedMediaItems.Bind(i => i.GetDuration()).OrderBy(identity).HeadOrNone());
 
         State = new CollectionEnumeratorState { Seed = state.Seed };
         while (State.Index < state.Index)

ErsatzTV.Core/Scheduling/RandomizedMediaCollectionEnumerator.cs

@@ -14,7 +14,8 @@ public class RandomizedMediaCollectionEnumerator : IMediaCollectionEnumerator
     public RandomizedMediaCollectionEnumerator(IList<MediaItem> mediaItems, CollectionEnumeratorState state)
     {
         _mediaItems = mediaItems;
-        _lazyMinimumDuration = new Lazy<Option<TimeSpan>>(() => _mediaItems.Bind(i => i.GetDuration()).HeadOrNone());
+        _lazyMinimumDuration =
+            new Lazy<Option<TimeSpan>>(() => _mediaItems.Bind(i => i.GetDuration()).OrderBy(identity).HeadOrNone());
         _random = new Random(state.Seed);
 
         State = new CollectionEnumeratorState { Seed = state.Seed };

ErsatzTV.Core/Scheduling/SeasonEpisodeMediaCollectionEnumerator.cs

@@ -15,7 +15,7 @@ public sealed class SeasonEpisodeMediaCollectionEnumerator : IMediaCollectionEnu
     {
         _sortedMediaItems = mediaItems.OrderBy(identity, new SeasonEpisodeMediaComparer()).ToList();
         _lazyMinimumDuration = new Lazy<Option<TimeSpan>>(
-            () => _sortedMediaItems.Bind(i => i.GetDuration()).HeadOrNone());
+            () => _sortedMediaItems.Bind(i => i.GetDuration()).OrderBy(identity).HeadOrNone());
 
         State = new CollectionEnumeratorState { Seed = state.Seed };
 

ErsatzTV.Core/Scheduling/ShuffleInOrderCollectionEnumerator.cs

@@ -33,7 +33,8 @@ public class ShuffleInOrderCollectionEnumerator : IMediaCollectionEnumerator
 
         _random = new Random(state.Seed);
         _shuffled = Shuffle(_collections, _random);
-        _lazyMinimumDuration = new Lazy<Option<TimeSpan>>(() => _shuffled.Bind(i => i.GetDuration()).HeadOrNone());
+        _lazyMinimumDuration =
+            new Lazy<Option<TimeSpan>>(() => _shuffled.Bind(i => i.GetDuration()).OrderBy(identity).HeadOrNone());
 
         State = new CollectionEnumeratorState { Seed = state.Seed };
         while (State.Index < state.Index)

ErsatzTV.Core/Scheduling/ShuffledMediaCollectionEnumerator.cs

@@ -30,7 +30,8 @@ public class ShuffledMediaCollectionEnumerator : IMediaCollectionEnumerator
 
         _random = new CloneableRandom(state.Seed);
         _shuffled = Shuffle(_mediaItems, _random);
-        _lazyMinimumDuration = new Lazy<Option<TimeSpan>>(() => _shuffled.Bind(i => i.GetDuration()).HeadOrNone());
+        _lazyMinimumDuration =
+            new Lazy<Option<TimeSpan>>(() => _shuffled.Bind(i => i.GetDuration()).OrderBy(identity).HeadOrNone());
 
         State = new CollectionEnumeratorState { Seed = state.Seed };
         while (State.Index < state.Index)

ErsatzTV.Infrastructure/Scheduling/MultiEpisodeShuffleCollectionEnumerator.cs

@@ -81,7 +81,8 @@ public class MultiEpisodeShuffleCollectionEnumerator : IMediaCollectionEnumerato
 
         _random = new CloneableRandom(state.Seed);
         _shuffled = Shuffle(_random);
-        _lazyMinimumDuration = new Lazy<Option<TimeSpan>>(() => _shuffled.Bind(i => i.GetDuration()).HeadOrNone());
+        _lazyMinimumDuration =
+            new Lazy<Option<TimeSpan>>(() => _shuffled.Bind(i => i.GetDuration()).OrderBy(identity).HeadOrNone());
 
         State = new CollectionEnumeratorState { Seed = state.Seed };
         while (State.Index < state.Index)