fix some collection related bugs with images (#1874)

CHANGELOG.md

@@ -63,6 +63,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Fix synchronizing trakt lists from users with special characters in their username
   - Note that these lists MUST be added as URLs; the short-form `user/list` will NOT work with special characters
 - Fix local subtitle scanner to detect non-lowercase extensions (e.g. `Movie (2000).EN.SRT`)
+- Fix adding a single image to a manual collection from search results
+- Fix loading manual collection view when collection contains images
 
 ### Changed
 - Remove some unnecessary API calls related to media server scanning and paging

ErsatzTV.Application/MediaCards/Queries/GetCollectionCardsHandler.cs

@@ -97,6 +97,12 @@ public class GetCollectionCardsHandler :
             .Include(c => c.MediaItems)
             .ThenInclude(i => (i as Song).MediaVersions)
             .ThenInclude(mv => mv.MediaFiles)
+            .Include(c => c.MediaItems)
+            .ThenInclude(i => (i as Image).ImageMetadata)
+            .ThenInclude(ovm => ovm.Artwork)
+            .Include(c => c.MediaItems)
+            .ThenInclude(i => (i as Image).MediaVersions)
+            .ThenInclude(mv => mv.MediaFiles)
             .SelectOneAsync(c => c.Id, c => c.Id == request.Id)
             .Map(c => c.ToEither(BaseError.New("Unable to load collection")))
             .MapT(c => ProjectToViewModel(c, maybeJellyfin, maybeEmby));

ErsatzTV/Pages/Search.razor

@@ -654,6 +654,27 @@
                     Right: _ => Snackbar.Add($"Added {song.Title} to collection {collection.Name}", Severity.Success));
             }
         }
+
+        if (card is ImageCardViewModel image)
+        {
+            var parameters = new DialogParameters { { "EntityType", "image" }, { "EntityName", image.Title } };
+            var options = new DialogOptions { CloseButton = true, MaxWidth = MaxWidth.ExtraSmall };
+
+            IDialogReference dialog = await Dialog.ShowAsync<AddToCollectionDialog>("Add To Collection", parameters, options);
+            DialogResult result = await dialog.Result;
+            if (result is { Canceled: false, Data: MediaCollectionViewModel collection })
+            {
+                var request = new AddImageToCollection(collection.Id, image.ImageId);
+                Either<BaseError, Unit> addResult = await Mediator.Send(request, CancellationToken);
+                addResult.Match(
+                    Left: error =>
+                    {
+                        Snackbar.Add($"Unexpected error adding image to collection: {error.Value}");
+                        Logger.LogError("Unexpected error adding image to collection: {Error}", error.Value);
+                    },
+                    Right: _ => Snackbar.Add($"Added {image.Title} to collection {collection.Name}", Severity.Success));
+            }
+        }
     }
 
     private string GetMoviesLink()