show collection name in some error messages (#612)

CHANGELOG.md

@@ -15,6 +15,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ### Changed
 - Intermittent watermarks will now fade in and out
+- Show collection name in some playout build error messages
 
 ## [0.4.0-alpha] - 2022-01-29
 ### Fixed

ErsatzTV.Core.Tests/Fakes/FakeMediaCollectionRepository.cs

@@ -37,5 +37,6 @@ namespace ErsatzTV.Core.Tests.Fakes
             throw new NotSupportedException();
 
         public Task<bool> IsCustomPlaybackOrder(int collectionId) => false.AsTask();
+        public Task<Option<string>> GetNameFromKey(CollectionKey emptyCollection) => Option<string>.None.AsTask();
     }
 }

ErsatzTV.Core/Interfaces/Repositories/IMediaCollectionRepository.cs

@@ -18,5 +18,6 @@ namespace ErsatzTV.Core.Interfaces.Repositories
         Task<List<int>> PlayoutIdsUsingMultiCollection(int multiCollectionId);
         Task<List<int>> PlayoutIdsUsingSmartCollection(int smartCollectionId);
         Task<bool> IsCustomPlaybackOrder(int collectionId);
+        Task<Option<string>> GetNameFromKey(CollectionKey emptyCollection);
     }
 }

ErsatzTV.Core/Scheduling/PlayoutBuilder.cs

@@ -72,10 +72,24 @@ namespace ErsatzTV.Core.Scheduling
 
             Option<CollectionKey> maybeEmptyCollection = await CheckForEmptyCollections(collectionMediaItems);
             foreach (CollectionKey emptyCollection in maybeEmptyCollection)
+            {
+                Option<string> maybeName = await _mediaCollectionRepository.GetNameFromKey(emptyCollection);
+                if (maybeName.IsSome)
+                {
+                    foreach (string name in maybeName)
+                    {
+                        _logger.LogError(
+                            "Unable to rebuild playout; {CollectionType} {CollectionName} has no valid items!",
+                            emptyCollection.CollectionType,
+                            name);
+                    }
+                }
+                else
                 {
                     _logger.LogError(
                         "Unable to rebuild playout; collection {@CollectionKey} has no valid items!",
                         emptyCollection);
+                }
 
                 return playout;
             }

ErsatzTV.Infrastructure/Data/Repositories/MediaCollectionRepository.cs

@@ -355,6 +355,37 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 @"SELECT IFNULL(MIN(UseCustomPlaybackOrder), 0) FROM Collection WHERE Id = @CollectionId",
                 new { CollectionId = collectionId });
 
+        public async Task<Option<string>> GetNameFromKey(CollectionKey emptyCollection)
+        {
+            await using TvContext dbContext = await _dbContextFactory.CreateDbContextAsync();
+
+            return emptyCollection.CollectionType switch
+            {
+                ProgramScheduleItemCollectionType.Artist => await dbContext.Artists.Include(a => a.ArtistMetadata)
+                    .SelectOneAsync(a => a.Id, a => a.Id == emptyCollection.MediaItemId.Value)
+                    .MapT(a => a.ArtistMetadata.Head().Title),
+                ProgramScheduleItemCollectionType.Collection => await dbContext.Collections
+                    .SelectOneAsync(c => c.Id, c => c.Id == emptyCollection.CollectionId.Value)
+                    .MapT(c => c.Name),
+                ProgramScheduleItemCollectionType.MultiCollection => await dbContext.MultiCollections
+                    .SelectOneAsync(c => c.Id, c => c.Id == emptyCollection.MultiCollectionId.Value)
+                    .MapT(c => c.Name),
+                ProgramScheduleItemCollectionType.SmartCollection => await dbContext.SmartCollections
+                    .SelectOneAsync(c => c.Id, c => c.Id == emptyCollection.SmartCollectionId.Value)
+                    .MapT(c => c.Name),
+                ProgramScheduleItemCollectionType.TelevisionSeason => await dbContext.Seasons
+                    .Include(s => s.SeasonMetadata)
+                    .Include(s => s.Show)
+                    .ThenInclude(s => s.ShowMetadata)
+                    .SelectOneAsync(a => a.Id, a => a.Id == emptyCollection.MediaItemId.Value)
+                    .MapT(s => $"{s.Show.ShowMetadata.Head().Title} Season {s.SeasonNumber}"),
+                ProgramScheduleItemCollectionType.TelevisionShow => await dbContext.Shows.Include(s => s.ShowMetadata)
+                    .SelectOneAsync(a => a.Id, a => a.Id == emptyCollection.MediaItemId.Value)
+                    .MapT(s => s.ShowMetadata.Head().Title),
+                _ => None
+            };
+        }
+
         private async Task<List<Movie>> GetMovieItems(TvContext dbContext, int collectionId)
         {
             IEnumerable<int> ids = await _dbConnection.QueryAsync<int>(