search overhaul (#87)

* add letter bar with no links

* use lucene for search, add paged search results

* add search index version

* index library_name; rebuild index when folder is missing

* maintain index as local movies change

* fix tests

* maintain index as local shows change

* maintain index as plex movies change

* maintain index as plex shows change

* code cleanup

* add duplicate filter to search

* add links to letter bar

* code cleanup

ErsatzTV.Application/Libraries/Commands/DeleteLocalLibraryPathHandler.cs

@@ -1,8 +1,10 @@
-using System.Threading;
+using System.Collections.Generic;
+using System.Threading;
 using System.Threading.Tasks;
 using ErsatzTV.Core;
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Interfaces.Search;
 using LanguageExt;
 
 namespace ErsatzTV.Application.Libraries.Commands
@@ -11,9 +13,13 @@ namespace ErsatzTV.Application.Libraries.Commands
         DeleteLocalLibraryPathHandler : MediatR.IRequestHandler<DeleteLocalLibraryPath, Either<BaseError, Unit>>
     {
         private readonly ILibraryRepository _libraryRepository;
+        private readonly ISearchIndex _searchIndex;
 
-        public DeleteLocalLibraryPathHandler(ILibraryRepository libraryRepository) =>
+        public DeleteLocalLibraryPathHandler(ILibraryRepository libraryRepository, ISearchIndex searchIndex)
+        {
             _libraryRepository = libraryRepository;
+            _searchIndex = searchIndex;
+        }
 
         public Task<Either<BaseError, Unit>> Handle(
             DeleteLocalLibraryPath request,
@@ -22,8 +28,13 @@ namespace ErsatzTV.Application.Libraries.Commands
                 .MapT(DoDeletion)
                 .Bind(t => t.ToEitherAsync());
 
-        private Task<Unit> DoDeletion(LibraryPath libraryPath) =>
-            _libraryRepository.DeleteLocalPath(libraryPath.Id).ToUnit();
+        private async Task<Unit> DoDeletion(LibraryPath libraryPath)
+        {
+            List<int> ids = await _libraryRepository.GetMediaIdsByLocalPath(libraryPath.Id);
+            await _searchIndex.RemoveItems(ids);
+            await _libraryRepository.DeleteLocalPath(libraryPath.Id);
+            return Unit.Default;
+        }
 
         private async Task<Validation<BaseError, LibraryPath>> MediaSourceMustExist(DeleteLocalLibraryPath request) =>
             (await _libraryRepository.GetPath(request.LocalLibraryPathId))

ErsatzTV.Application/MediaCards/MovieCardResultsViewModel.cs

@@ -1,6 +1,8 @@
 using System.Collections.Generic;
+using ErsatzTV.Core.Search;
+using LanguageExt;
 
 namespace ErsatzTV.Application.MediaCards
 {
-    public record MovieCardResultsViewModel(int Count, List<MovieCardViewModel> Cards);
+    public record MovieCardResultsViewModel(int Count, List<MovieCardViewModel> Cards, Option<SearchPageMap> PageMap);
 }

ErsatzTV.Application/MediaCards/Queries/GetMovieCards.cs

@@ -1,6 +0,0 @@
-using MediatR;
-
-namespace ErsatzTV.Application.MediaCards.Queries
-{
-    public record GetMovieCards(int PageNumber, int PageSize) : IRequest<MovieCardResultsViewModel>;
-}

ErsatzTV.Application/MediaCards/Queries/GetMovieCardsHandler.cs

@@ -1,30 +0,0 @@
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading;
-using System.Threading.Tasks;
-using ErsatzTV.Core.Interfaces.Repositories;
-using LanguageExt;
-using MediatR;
-using static ErsatzTV.Application.MediaCards.Mapper;
-
-namespace ErsatzTV.Application.MediaCards.Queries
-{
-    public class
-        GetMovieCardsHandler : IRequestHandler<GetMovieCards, MovieCardResultsViewModel>
-    {
-        private readonly IMovieRepository _movieRepository;
-
-        public GetMovieCardsHandler(IMovieRepository movieRepository) => _movieRepository = movieRepository;
-
-        public async Task<MovieCardResultsViewModel> Handle(GetMovieCards request, CancellationToken cancellationToken)
-        {
-            int count = await _movieRepository.GetMovieCount();
-
-            List<MovieCardViewModel> results = await _movieRepository
-                .GetPagedMovies(request.PageNumber, request.PageSize)
-                .Map(list => list.Map(ProjectToViewModel).ToList());
-
-            return new MovieCardResultsViewModel(count, results);
-        }
-    }
-}

ErsatzTV.Application/MediaCards/Queries/GetTelevisionShowCards.cs

@@ -1,6 +0,0 @@
-using MediatR;
-
-namespace ErsatzTV.Application.MediaCards.Queries
-{
-    public record GetTelevisionShowCards(int PageNumber, int PageSize) : IRequest<TelevisionShowCardResultsViewModel>;
-}

ErsatzTV.Application/MediaCards/Queries/GetTelevisionShowCardsHandler.cs

@@ -1,33 +0,0 @@
-using System.Collections.Generic;
-using System.Linq;
-using System.Threading;
-using System.Threading.Tasks;
-using ErsatzTV.Core.Interfaces.Repositories;
-using LanguageExt;
-using MediatR;
-using static ErsatzTV.Application.MediaCards.Mapper;
-
-namespace ErsatzTV.Application.MediaCards.Queries
-{
-    public class
-        GetTelevisionShowCardsHandler : IRequestHandler<GetTelevisionShowCards, TelevisionShowCardResultsViewModel>
-    {
-        private readonly ITelevisionRepository _televisionRepository;
-
-        public GetTelevisionShowCardsHandler(ITelevisionRepository televisionRepository) =>
-            _televisionRepository = televisionRepository;
-
-        public async Task<TelevisionShowCardResultsViewModel> Handle(
-            GetTelevisionShowCards request,
-            CancellationToken cancellationToken)
-        {
-            int count = await _televisionRepository.GetShowCount();
-
-            List<TelevisionShowCardViewModel> results = await _televisionRepository
-                .GetPagedShows(request.PageNumber, request.PageSize)
-                .Map(list => list.Map(ProjectToViewModel).ToList());
-
-            return new TelevisionShowCardResultsViewModel(count, results);
-        }
-    }
-}

ErsatzTV.Application/MediaCards/TelevisionShowCardResultsViewModel.cs

@@ -1,6 +1,11 @@
 using System.Collections.Generic;
+using ErsatzTV.Core.Search;
+using LanguageExt;
 
 namespace ErsatzTV.Application.MediaCards
 {
-    public record TelevisionShowCardResultsViewModel(int Count, List<TelevisionShowCardViewModel> Cards);
+    public record TelevisionShowCardResultsViewModel(
+        int Count,
+        List<TelevisionShowCardViewModel> Cards,
+        Option<SearchPageMap> PageMap);
 }

ErsatzTV.Application/Plex/Commands/UpdatePlexLibraryPreferencesHandler.cs

@@ -4,6 +4,7 @@ using System.Threading;
 using System.Threading.Tasks;
 using ErsatzTV.Core;
 using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Interfaces.Search;
 using LanguageExt;
 
 namespace ErsatzTV.Application.Plex.Commands
@@ -13,16 +14,23 @@ namespace ErsatzTV.Application.Plex.Commands
             Either<BaseError, Unit>>
     {
         private readonly IMediaSourceRepository _mediaSourceRepository;
+        private readonly ISearchIndex _searchIndex;
 
-        public UpdatePlexLibraryPreferencesHandler(IMediaSourceRepository mediaSourceRepository) =>
+        public UpdatePlexLibraryPreferencesHandler(
+            IMediaSourceRepository mediaSourceRepository,
+            ISearchIndex searchIndex)
+        {
             _mediaSourceRepository = mediaSourceRepository;
+            _searchIndex = searchIndex;
+        }
 
         public async Task<Either<BaseError, Unit>> Handle(
             UpdatePlexLibraryPreferences request,
             CancellationToken cancellationToken)
         {
             var toDisable = request.Preferences.Filter(p => p.ShouldSyncItems == false).Map(p => p.Id).ToList();
-            await _mediaSourceRepository.DisablePlexLibrarySync(toDisable);
+            List<int> ids = await _mediaSourceRepository.DisablePlexLibrarySync(toDisable);
+            await _searchIndex.RemoveItems(ids);
 
             IEnumerable<int> toEnable = request.Preferences.Filter(p => p.ShouldSyncItems).Map(p => p.Id);
             await _mediaSourceRepository.EnablePlexLibrarySync(toEnable);

ErsatzTV.Application/Search/Commands/RebuildSearchIndex.cs

@@ -0,0 +1,6 @@
+using LanguageExt;
+
+namespace ErsatzTV.Application.Search.Commands
+{
+    public record RebuildSearchIndex : MediatR.IRequest<Unit>, IBackgroundServiceRequest;
+}

ErsatzTV.Application/Search/Commands/RebuildSearchIndexHandler.cs

@@ -0,0 +1,74 @@
+using System.Collections.Generic;
+using System.IO;
+using System.Threading;
+using System.Threading.Tasks;
+using ErsatzTV.Core;
+using ErsatzTV.Core.Domain;
+using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Interfaces.Search;
+using LanguageExt;
+using Microsoft.Extensions.Logging;
+
+namespace ErsatzTV.Application.Search.Commands
+{
+    public class RebuildSearchIndexHandler : MediatR.IRequestHandler<RebuildSearchIndex, Unit>
+    {
+        private readonly IConfigElementRepository _configElementRepository;
+        private readonly ILogger<RebuildSearchIndexHandler> _logger;
+        private readonly ISearchIndex _searchIndex;
+        private readonly ISearchRepository _searchRepository;
+
+        public RebuildSearchIndexHandler(
+            ISearchIndex searchIndex,
+            ISearchRepository searchRepository,
+            IConfigElementRepository configElementRepository,
+            ILogger<RebuildSearchIndexHandler> logger)
+        {
+            _searchIndex = searchIndex;
+            _logger = logger;
+            _searchRepository = searchRepository;
+            _configElementRepository = configElementRepository;
+        }
+
+        public async Task<Unit> Handle(RebuildSearchIndex request, CancellationToken cancellationToken)
+        {
+            bool indexFolderExists = Directory.Exists(FileSystemLayout.SearchIndexFolder);
+
+            if (!indexFolderExists ||
+                await _configElementRepository.GetValue<int>(ConfigElementKey.SearchIndexVersion) <
+                _searchIndex.Version)
+            {
+                _logger.LogDebug("Migrating search index to version {Version}", _searchIndex.Version);
+
+                List<MediaItem> items = await _searchRepository.GetItemsToIndex();
+                await _searchIndex.Rebuild(items);
+
+                Option<ConfigElement> maybeVersion =
+                    await _configElementRepository.Get(ConfigElementKey.SearchIndexVersion);
+                await maybeVersion.Match(
+                    version =>
+                    {
+                        version.Value = _searchIndex.Version.ToString();
+                        return _configElementRepository.Update(version);
+                    },
+                    () =>
+                    {
+                        var configElement = new ConfigElement
+                        {
+                            Key = ConfigElementKey.SearchIndexVersion.Key,
+                            Value = _searchIndex.Version.ToString()
+                        };
+                        return _configElementRepository.Add(configElement);
+                    });
+
+                _logger.LogDebug("Done migrating search index");
+            }
+            else
+            {
+                _logger.LogDebug("Search index is already version {Version}", _searchIndex.Version);
+            }
+
+            return Unit.Default;
+        }
+    }
+}

ErsatzTV.Application/Search/Queries/QuerySearchIndex.cs

@@ -0,0 +1,7 @@
+using ErsatzTV.Core.Search;
+using MediatR;
+
+namespace ErsatzTV.Application.Search.Queries
+{
+    public record QuerySearchIndex(string Query) : IRequest<SearchResult>;
+}

ErsatzTV.Application/Search/Queries/QuerySearchIndexHandler.cs

@@ -0,0 +1,18 @@
+using System.Threading;
+using System.Threading.Tasks;
+using ErsatzTV.Core.Interfaces.Search;
+using ErsatzTV.Core.Search;
+using MediatR;
+
+namespace ErsatzTV.Application.Search.Queries
+{
+    public class QuerySearchIndexHandler : IRequestHandler<QuerySearchIndex, SearchResult>
+    {
+        private readonly ISearchIndex _searchIndex;
+
+        public QuerySearchIndexHandler(ISearchIndex searchIndex) => _searchIndex = searchIndex;
+
+        public Task<SearchResult> Handle(QuerySearchIndex request, CancellationToken cancellationToken) =>
+            _searchIndex.Search(request.Query, 0, 100);
+    }
+}

ErsatzTV.Application/Search/Queries/QuerySearchIndexMovies.cs

@@ -0,0 +1,8 @@
+using ErsatzTV.Application.MediaCards;
+using MediatR;
+
+namespace ErsatzTV.Application.Search.Queries
+{
+    public record QuerySearchIndexMovies
+        (string Query, int PageNumber, int PageSize) : IRequest<MovieCardResultsViewModel>;
+}

ErsatzTV.Application/Search/Queries/QuerySearchIndexMoviesHandler.cs

@@ -0,0 +1,42 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using ErsatzTV.Application.MediaCards;
+using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Interfaces.Search;
+using ErsatzTV.Core.Search;
+using LanguageExt;
+using MediatR;
+using static ErsatzTV.Application.MediaCards.Mapper;
+
+namespace ErsatzTV.Application.Search.Queries
+{
+    public class QuerySearchIndexMoviesHandler : IRequestHandler<QuerySearchIndexMovies, MovieCardResultsViewModel>
+    {
+        private readonly IMovieRepository _movieRepository;
+        private readonly ISearchIndex _searchIndex;
+
+        public QuerySearchIndexMoviesHandler(ISearchIndex searchIndex, IMovieRepository movieRepository)
+        {
+            _searchIndex = searchIndex;
+            _movieRepository = movieRepository;
+        }
+
+        public async Task<MovieCardResultsViewModel> Handle(
+            QuerySearchIndexMovies request,
+            CancellationToken cancellationToken)
+        {
+            SearchResult searchResult = await _searchIndex.Search(
+                request.Query,
+                (request.PageNumber - 1) * request.PageSize,
+                request.PageSize);
+
+            List<MovieCardViewModel> items = await _movieRepository
+                .GetMoviesForCards(searchResult.Items.Map(i => i.Id).ToList())
+                .Map(list => list.Map(ProjectToViewModel).ToList());
+
+            return new MovieCardResultsViewModel(searchResult.TotalCount, items, searchResult.PageMap);
+        }
+    }
+}

ErsatzTV.Application/Search/Queries/QuerySearchIndexShows.cs

@@ -0,0 +1,8 @@
+using ErsatzTV.Application.MediaCards;
+using MediatR;
+
+namespace ErsatzTV.Application.Search.Queries
+{
+    public record QuerySearchIndexShows
+        (string Query, int PageNumber, int PageSize) : IRequest<TelevisionShowCardResultsViewModel>;
+}

ErsatzTV.Application/Search/Queries/QuerySearchIndexShowsHandler.cs

@@ -0,0 +1,43 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using ErsatzTV.Application.MediaCards;
+using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Interfaces.Search;
+using ErsatzTV.Core.Search;
+using LanguageExt;
+using MediatR;
+using static ErsatzTV.Application.MediaCards.Mapper;
+
+namespace ErsatzTV.Application.Search.Queries
+{
+    public class
+        QuerySearchIndexShowsHandler : IRequestHandler<QuerySearchIndexShows, TelevisionShowCardResultsViewModel>
+    {
+        private readonly ISearchIndex _searchIndex;
+        private readonly ITelevisionRepository _televisionRepository;
+
+        public QuerySearchIndexShowsHandler(ISearchIndex searchIndex, ITelevisionRepository televisionRepository)
+        {
+            _searchIndex = searchIndex;
+            _televisionRepository = televisionRepository;
+        }
+
+        public async Task<TelevisionShowCardResultsViewModel> Handle(
+            QuerySearchIndexShows request,
+            CancellationToken cancellationToken)
+        {
+            SearchResult searchResult = await _searchIndex.Search(
+                request.Query,
+                (request.PageNumber - 1) * request.PageSize,
+                request.PageSize);
+
+            List<TelevisionShowCardViewModel> items = await _televisionRepository
+                .GetShowsForCards(searchResult.Items.Map(i => i.Id).ToList())
+                .Map(list => list.Map(ProjectToViewModel).ToList());
+
+            return new TelevisionShowCardResultsViewModel(searchResult.TotalCount, items, searchResult.PageMap);
+        }
+    }
+}

ErsatzTV.Application/Search/SearchResultViewModel.cs

@@ -0,0 +1,10 @@
+using System.Collections.Generic;
+
+namespace ErsatzTV.Application.Search
+{
+    public class SearchResultViewModel<T>
+    {
+        public int TotalCount { get; set; }
+        public List<T> Items { get; set; }
+    }
+}

ErsatzTV.Application/Streaming/Queries/GetPlayoutItemProcessByChannelNumberHandler.cs

@@ -19,11 +19,11 @@ namespace ErsatzTV.Application.Streaming.Queries
     public class
         GetPlayoutItemProcessByChannelNumberHandler : FFmpegProcessHandler<GetPlayoutItemProcessByChannelNumber>
     {
+        private readonly IConfigElementRepository _configElementRepository;
         private readonly FFmpegProcessService _ffmpegProcessService;
         private readonly ILocalFileSystem _localFileSystem;
         private readonly ILogger<GetPlayoutItemProcessByChannelNumberHandler> _logger;
         private readonly IMediaSourceRepository _mediaSourceRepository;
-        private readonly IConfigElementRepository _configElementRepository;
         private readonly IPlayoutRepository _playoutRepository;
 
         public GetPlayoutItemProcessByChannelNumberHandler(

ErsatzTV.Core.Tests/Fakes/FakeLocalFileSystem.cs

@@ -36,6 +36,8 @@ namespace ErsatzTV.Core.Tests.Fakes
             _folders = allFolders.Distinct().Map(f => new FakeFolderEntry(f)).ToList();
         }
 
+        public Unit EnsureFolderExists(string folder) => Unit.Default;
+
         public DateTime GetLastWriteTime(string path) =>
             Optional(_files.SingleOrDefault(f => f.Path == path))
                 .Map(f => f.LastWriteTime)

ErsatzTV.Core.Tests/Fakes/FakeMovieWithPath.cs

@@ -1,26 +1,26 @@
 using System.Collections.Generic;
 using ErsatzTV.Core.Domain;
+using ErsatzTV.Core.Metadata;
 
 namespace ErsatzTV.Core.Tests.Fakes
 {
-    public class FakeMovieWithPath : Movie
+    public class FakeMovieWithPath : MediaItemScanResult<Movie>
     {
         public FakeMovieWithPath(string path)
-        {
-            Path = path;
-
-            MediaVersions = new List<MediaVersion>
-            {
-                new()
+            : base(
+                new Movie
                 {
-                    MediaFiles = new List<MediaFile>
+                    MediaVersions = new List<MediaVersion>
                     {
-                        new() { Path = path }
+                        new()
+                        {
+                            MediaFiles = new List<MediaFile>
+                            {
+                                new() { Path = path }
+                            }
+                        }
                     }
-                }
-            };
-        }
-
-        public string Path { get; }
+                }) =>
+            IsAdded = true;
     }
 }

ErsatzTV.Core.Tests/Fakes/FakeTelevisionRepository.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Threading.Tasks;
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Metadata;
 using LanguageExt;
 
 namespace ErsatzTV.Core.Tests.Fakes
@@ -20,6 +21,8 @@ namespace ErsatzTV.Core.Tests.Fakes
         public Task<List<ShowMetadata>> GetPagedShows(int pageNumber, int pageSize) =>
             throw new NotSupportedException();
 
+        public Task<List<ShowMetadata>> GetShowsForCards(List<int> ids) => throw new NotSupportedException();
+
         public Task<List<Episode>> GetShowItems(int showId) => throw new NotSupportedException();
 
         public Task<List<Season>> GetAllSeasons() => throw new NotSupportedException();
@@ -43,7 +46,7 @@ namespace ErsatzTV.Core.Tests.Fakes
         public Task<Option<Show>> GetShowByMetadata(int libraryPathId, ShowMetadata metadata) =>
             throw new NotSupportedException();
 
-        public Task<Either<BaseError, Show>>
+        public Task<Either<BaseError, MediaItemScanResult<Show>>>
             AddShow(int libraryPathId, string showFolder, ShowMetadata metadata) =>
             throw new NotSupportedException();
 
@@ -59,9 +62,11 @@ namespace ErsatzTV.Core.Tests.Fakes
 
         public Task<Unit> DeleteEmptySeasons(LibraryPath libraryPath) => throw new NotSupportedException();
 
-        public Task<Unit> DeleteEmptyShows(LibraryPath libraryPath) => throw new NotSupportedException();
+        public Task<List<int>> DeleteEmptyShows(LibraryPath libraryPath) => throw new NotSupportedException();
 
-        public Task<Either<BaseError, PlexShow>> GetOrAddPlexShow(PlexLibrary library, PlexShow item) =>
+        public Task<Either<BaseError, MediaItemScanResult<PlexShow>>> GetOrAddPlexShow(
+            PlexLibrary library,
+            PlexShow item) =>
             throw new NotSupportedException();
 
         public Task<Either<BaseError, PlexSeason>> GetOrAddPlexSeason(PlexLibrary library, PlexSeason item) =>
@@ -70,9 +75,9 @@ namespace ErsatzTV.Core.Tests.Fakes
         public Task<Either<BaseError, PlexEpisode>> GetOrAddPlexEpisode(PlexLibrary library, PlexEpisode item) =>
             throw new NotSupportedException();
 
-        public Task<Unit> AddGenre(ShowMetadata metadata, Genre genre) => throw new NotSupportedException();
+        public Task<bool> AddGenre(ShowMetadata metadata, Genre genre) => throw new NotSupportedException();
 
-        public Task<Unit> RemoveMissingPlexShows(PlexLibrary library, List<string> showKeys) =>
+        public Task<List<int>> RemoveMissingPlexShows(PlexLibrary library, List<string> showKeys) =>
             throw new NotSupportedException();
 
         public Task<Unit> RemoveMissingPlexSeasons(string showKey, List<string> seasonKeys) =>

ErsatzTV.Core.Tests/Metadata/MovieFolderScannerTests.cs

@@ -9,6 +9,7 @@ using ErsatzTV.Core.Errors;
 using ErsatzTV.Core.Interfaces.Images;
 using ErsatzTV.Core.Interfaces.Metadata;
 using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Interfaces.Search;
 using ErsatzTV.Core.Metadata;
 using ErsatzTV.Core.Tests.Fakes;
 using FluentAssertions;
@@ -44,20 +45,24 @@ namespace ErsatzTV.Core.Tests.Metadata
                 _movieRepository = new Mock<IMovieRepository>();
                 _movieRepository.Setup(x => x.GetOrAdd(It.IsAny<LibraryPath>(), It.IsAny<string>()))
                     .Returns(
-                        (LibraryPath _, string path) => Right<BaseError, Movie>(new FakeMovieWithPath(path)).AsTask());
+                        (LibraryPath _, string path) =>
+                            Right<BaseError, MediaItemScanResult<Movie>>(new FakeMovieWithPath(path)).AsTask());
                 _movieRepository.Setup(x => x.FindMoviePaths(It.IsAny<LibraryPath>()))
                     .Returns(new List<string>().AsEnumerable().AsTask());
 
                 _localStatisticsProvider = new Mock<ILocalStatisticsProvider>();
                 _localMetadataProvider = new Mock<ILocalMetadataProvider>();
 
+                _localStatisticsProvider.Setup(x => x.RefreshStatistics(It.IsAny<string>(), It.IsAny<MediaItem>()))
+                    .Returns<string, MediaItem>((_, _) => Right<BaseError, bool>(true).AsTask());
+
                 // fallback metadata adds metadata to a movie, so we need to replicate that here
                 _localMetadataProvider.Setup(x => x.RefreshFallbackMetadata(It.IsAny<MediaItem>()))
                     .Returns(
                         (MediaItem mediaItem) =>
                         {
                             ((Movie) mediaItem).MovieMetadata = new List<MovieMetadata> { new() };
-                            return Unit.Default.AsTask();
+                            return Task.FromResult(true);
                         });
 
                 _imageCache = new Mock<IImageCache>();
@@ -104,11 +109,14 @@ namespace ErsatzTV.Core.Tests.Metadata
                 _movieRepository.Verify(x => x.GetOrAdd(libraryPath, moviePath), Times.Once);
 
                 _localStatisticsProvider.Verify(
-                    x => x.RefreshStatistics(FFprobePath, It.Is<FakeMovieWithPath>(i => i.Path == moviePath)),
+                    x => x.RefreshStatistics(
+                        FFprobePath,
+                        It.Is<Movie>(i => i.MediaVersions.Head().MediaFiles.Head().Path == moviePath)),
                     Times.Once);
 
                 _localMetadataProvider.Verify(
-                    x => x.RefreshFallbackMetadata(It.Is<FakeMovieWithPath>(i => i.Path == moviePath)),
+                    x => x.RefreshFallbackMetadata(
+                        It.Is<Movie>(i => i.MediaVersions.Head().MediaFiles.Head().Path == moviePath)),
                     Times.Once);
             }
 
@@ -137,11 +145,15 @@ namespace ErsatzTV.Core.Tests.Metadata
                 _movieRepository.Verify(x => x.GetOrAdd(libraryPath, moviePath), Times.Once);
 
                 _localStatisticsProvider.Verify(
-                    x => x.RefreshStatistics(FFprobePath, It.Is<FakeMovieWithPath>(i => i.Path == moviePath)),
+                    x => x.RefreshStatistics(
+                        FFprobePath,
+                        It.Is<Movie>(i => i.MediaVersions.Head().MediaFiles.Head().Path == moviePath)),
                     Times.Once);
 
                 _localMetadataProvider.Verify(
-                    x => x.RefreshSidecarMetadata(It.Is<FakeMovieWithPath>(i => i.Path == moviePath), metadataPath),
+                    x => x.RefreshSidecarMetadata(
+                        It.Is<Movie>(i => i.MediaVersions.Head().MediaFiles.Head().Path == moviePath),
+                        metadataPath),
                     Times.Once);
             }
 
@@ -170,11 +182,15 @@ namespace ErsatzTV.Core.Tests.Metadata
                 _movieRepository.Verify(x => x.GetOrAdd(libraryPath, moviePath), Times.Once);
 
                 _localStatisticsProvider.Verify(
-                    x => x.RefreshStatistics(FFprobePath, It.Is<FakeMovieWithPath>(i => i.Path == moviePath)),
+                    x => x.RefreshStatistics(
+                        FFprobePath,
+                        It.Is<Movie>(i => i.MediaVersions.Head().MediaFiles.Head().Path == moviePath)),
                     Times.Once);
 
                 _localMetadataProvider.Verify(
-                    x => x.RefreshSidecarMetadata(It.Is<FakeMovieWithPath>(i => i.Path == moviePath), metadataPath),
+                    x => x.RefreshSidecarMetadata(
+                        It.Is<Movie>(i => i.MediaVersions.Head().MediaFiles.Head().Path == moviePath),
+                        metadataPath),
                     Times.Once);
             }
 
@@ -207,11 +223,14 @@ namespace ErsatzTV.Core.Tests.Metadata
                 _movieRepository.Verify(x => x.GetOrAdd(libraryPath, moviePath), Times.Once);
 
                 _localStatisticsProvider.Verify(
-                    x => x.RefreshStatistics(FFprobePath, It.Is<FakeMovieWithPath>(i => i.Path == moviePath)),
+                    x => x.RefreshStatistics(
+                        FFprobePath,
+                        It.Is<Movie>(i => i.MediaVersions.Head().MediaFiles.Head().Path == moviePath)),
                     Times.Once);
 
                 _localMetadataProvider.Verify(
-                    x => x.RefreshFallbackMetadata(It.Is<FakeMovieWithPath>(i => i.Path == moviePath)),
+                    x => x.RefreshFallbackMetadata(
+                        It.Is<Movie>(i => i.MediaVersions.Head().MediaFiles.Head().Path == moviePath)),
                     Times.Once);
 
                 _imageCache.Verify(
@@ -248,11 +267,14 @@ namespace ErsatzTV.Core.Tests.Metadata
                 _movieRepository.Verify(x => x.GetOrAdd(libraryPath, moviePath), Times.Once);
 
                 _localStatisticsProvider.Verify(
-                    x => x.RefreshStatistics(FFprobePath, It.Is<FakeMovieWithPath>(i => i.Path == moviePath)),
+                    x => x.RefreshStatistics(
+                        FFprobePath,
+                        It.Is<Movie>(i => i.MediaVersions.Head().MediaFiles.Head().Path == moviePath)),
                     Times.Once);
 
                 _localMetadataProvider.Verify(
-                    x => x.RefreshFallbackMetadata(It.Is<FakeMovieWithPath>(i => i.Path == moviePath)),
+                    x => x.RefreshFallbackMetadata(
+                        It.Is<Movie>(i => i.MediaVersions.Head().MediaFiles.Head().Path == moviePath)),
                     Times.Once);
 
                 _imageCache.Verify(
@@ -288,11 +310,14 @@ namespace ErsatzTV.Core.Tests.Metadata
                 _movieRepository.Verify(x => x.GetOrAdd(libraryPath, moviePath), Times.Once);
 
                 _localStatisticsProvider.Verify(
-                    x => x.RefreshStatistics(FFprobePath, It.Is<FakeMovieWithPath>(i => i.Path == moviePath)),
+                    x => x.RefreshStatistics(
+                        FFprobePath,
+                        It.Is<Movie>(i => i.MediaVersions.Head().MediaFiles.Head().Path == moviePath)),
                     Times.Once);
 
                 _localMetadataProvider.Verify(
-                    x => x.RefreshFallbackMetadata(It.Is<FakeMovieWithPath>(i => i.Path == moviePath)),
+                    x => x.RefreshFallbackMetadata(
+                        It.Is<Movie>(i => i.MediaVersions.Head().MediaFiles.Head().Path == moviePath)),
                     Times.Once);
             }
 
@@ -324,11 +349,14 @@ namespace ErsatzTV.Core.Tests.Metadata
                 _movieRepository.Verify(x => x.GetOrAdd(libraryPath, moviePath), Times.Once);
 
                 _localStatisticsProvider.Verify(
-                    x => x.RefreshStatistics(FFprobePath, It.Is<FakeMovieWithPath>(i => i.Path == moviePath)),
+                    x => x.RefreshStatistics(
+                        FFprobePath,
+                        It.Is<Movie>(i => i.MediaVersions.Head().MediaFiles.Head().Path == moviePath)),
                     Times.Once);
 
                 _localMetadataProvider.Verify(
-                    x => x.RefreshFallbackMetadata(It.Is<FakeMovieWithPath>(i => i.Path == moviePath)),
+                    x => x.RefreshFallbackMetadata(
+                        It.Is<Movie>(i => i.MediaVersions.Head().MediaFiles.Head().Path == moviePath)),
                     Times.Once);
             }
 
@@ -354,11 +382,14 @@ namespace ErsatzTV.Core.Tests.Metadata
                 _movieRepository.Verify(x => x.GetOrAdd(libraryPath, moviePath), Times.Once);
 
                 _localStatisticsProvider.Verify(
-                    x => x.RefreshStatistics(FFprobePath, It.Is<FakeMovieWithPath>(i => i.Path == moviePath)),
+                    x => x.RefreshStatistics(
+                        FFprobePath,
+                        It.Is<Movie>(i => i.MediaVersions.Head().MediaFiles.Head().Path == moviePath)),
                     Times.Once);
 
                 _localMetadataProvider.Verify(
-                    x => x.RefreshFallbackMetadata(It.Is<FakeMovieWithPath>(i => i.Path == moviePath)),
+                    x => x.RefreshFallbackMetadata(
+                        It.Is<Movie>(i => i.MediaVersions.Head().MediaFiles.Head().Path == moviePath)),
                     Times.Once);
             }
 
@@ -419,6 +450,7 @@ namespace ErsatzTV.Core.Tests.Metadata
                     _localMetadataProvider.Object,
                     new Mock<IMetadataRepository>().Object,
                     _imageCache.Object,
+                    new Mock<ISearchIndex>().Object,
                     new Mock<ILogger<MovieFolderScanner>>().Object
                 );
         }

ErsatzTV.Core/Domain/ConfigElementKey.cs

@@ -11,5 +11,6 @@
         public static ConfigElementKey FFmpegDefaultProfileId => new("ffmpeg.default_profile_id");
         public static ConfigElementKey FFmpegDefaultResolutionId => new("ffmpeg.default_resolution_id");
         public static ConfigElementKey FFmpegSaveReports => new("ffmpeg.save_reports");
+        public static ConfigElementKey SearchIndexVersion => new("search_index.version");
     }
 }

ErsatzTV.Core/FileSystemLayout.cs

@@ -20,6 +20,7 @@ namespace ErsatzTV.Core
         public static readonly string PlexSecretsPath = Path.Combine(AppDataFolder, "plex-secrets.json");
 
         public static readonly string FFmpegReportsFolder = Path.Combine(AppDataFolder, "ffmpeg-reports");
+        public static readonly string SearchIndexFolder = Path.Combine(AppDataFolder, "search-index");
 
         public static readonly string ArtworkCacheFolder = Path.Combine(AppDataFolder, "cache", "artwork");
 

ErsatzTV.Core/Interfaces/Metadata/ILocalFileSystem.cs

@@ -8,6 +8,7 @@ namespace ErsatzTV.Core.Interfaces.Metadata
 {
     public interface ILocalFileSystem
     {
+        Unit EnsureFolderExists(string folder);
         DateTime GetLastWriteTime(string path);
         bool IsLibraryPathAccessible(LibraryPath libraryPath);
         IEnumerable<string> ListSubdirectories(string folder);

ErsatzTV.Core/Interfaces/Metadata/ILocalMetadataProvider.cs

@@ -1,15 +1,14 @@
 using System.Threading.Tasks;
 using ErsatzTV.Core.Domain;
-using LanguageExt;
 
 namespace ErsatzTV.Core.Interfaces.Metadata
 {
     public interface ILocalMetadataProvider
     {
         Task<ShowMetadata> GetMetadataForShow(string showFolder);
-        Task<Unit> RefreshSidecarMetadata(MediaItem mediaItem, string path);
-        Task<Unit> RefreshSidecarMetadata(Show televisionShow, string showFolder);
-        Task<Unit> RefreshFallbackMetadata(MediaItem mediaItem);
-        Task<Unit> RefreshFallbackMetadata(Show televisionShow, string showFolder);
+        Task<bool> RefreshSidecarMetadata(MediaItem mediaItem, string path);
+        Task<bool> RefreshSidecarMetadata(Show televisionShow, string showFolder);
+        Task<bool> RefreshFallbackMetadata(MediaItem mediaItem);
+        Task<bool> RefreshFallbackMetadata(Show televisionShow, string showFolder);
     }
 }

ErsatzTV.Core/Interfaces/Metadata/ILocalStatisticsProvider.cs

@@ -6,6 +6,6 @@ namespace ErsatzTV.Core.Interfaces.Metadata
 {
     public interface ILocalStatisticsProvider
     {
-        Task<Either<BaseError, Unit>> RefreshStatistics(string ffprobePath, MediaItem mediaItem);
+        Task<Either<BaseError, bool>> RefreshStatistics(string ffprobePath, MediaItem mediaItem);
     }
 }

ErsatzTV.Core/Interfaces/Repositories/ILibraryRepository.cs

@@ -15,6 +15,7 @@ namespace ErsatzTV.Core.Interfaces.Repositories
         Task<List<LibraryPath>> GetLocalPaths(int libraryId);
         Task<Option<LibraryPath>> GetPath(int libraryPathId);
         Task<int> CountMediaItemsByPath(int libraryPathId);
+        Task<List<int>> GetMediaIdsByLocalPath(int libraryPathId);
         Task DeleteLocalPath(int libraryPathId);
     }
 }

ErsatzTV.Core/Interfaces/Repositories/IMediaSourceRepository.cs

@@ -24,7 +24,7 @@ namespace ErsatzTV.Core.Interfaces.Repositories
         Task Update(PlexLibrary plexMediaSourceLibrary);
         Task Delete(int mediaSourceId);
         Task<Unit> DeleteAllPlex();
-        Task DisablePlexLibrarySync(List<int> libraryIds);
+        Task<List<int>> DisablePlexLibrarySync(List<int> libraryIds);
         Task EnablePlexLibrarySync(IEnumerable<int> libraryIds);
     }
 }

ErsatzTV.Core/Interfaces/Repositories/IMetadataRepository.cs

@@ -6,11 +6,11 @@ namespace ErsatzTV.Core.Interfaces.Repositories
 {
     public interface IMetadataRepository
     {
-        Task<Unit> RemoveGenre(Genre genre);
+        Task<bool> RemoveGenre(Genre genre);
         Task<bool> Update(Domain.Metadata metadata);
         Task<bool> Add(Domain.Metadata metadata);
         Task<bool> UpdateLocalStatistics(MediaVersion mediaVersion);
-        Task<Unit> UpdatePlexStatistics(MediaVersion mediaVersion);
+        Task<bool> UpdatePlexStatistics(MediaVersion mediaVersion);
         Task<Unit> UpdateArtworkPath(Artwork artwork);
         Task<Unit> AddArtwork(Domain.Metadata metadata, Artwork artwork);
         Task<Unit> RemoveArtwork(Domain.Metadata metadata, ArtworkKind artworkKind);

ErsatzTV.Core/Interfaces/Repositories/IMovieRepository.cs

@@ -1,6 +1,7 @@
 using System.Collections.Generic;
 using System.Threading.Tasks;
 using ErsatzTV.Core.Domain;
+using ErsatzTV.Core.Metadata;
 using LanguageExt;
 
 namespace ErsatzTV.Core.Interfaces.Repositories
@@ -9,13 +10,14 @@ namespace ErsatzTV.Core.Interfaces.Repositories
     {
         Task<bool> AllMoviesExist(List<int> movieIds);
         Task<Option<Movie>> GetMovie(int movieId);
-        Task<Either<BaseError, Movie>> GetOrAdd(LibraryPath libraryPath, string path);
-        Task<Either<BaseError, PlexMovie>> GetOrAdd(PlexLibrary library, PlexMovie item);
+        Task<Either<BaseError, MediaItemScanResult<Movie>>> GetOrAdd(LibraryPath libraryPath, string path);
+        Task<Either<BaseError, MediaItemScanResult<PlexMovie>>> GetOrAdd(PlexLibrary library, PlexMovie item);
         Task<int> GetMovieCount();
         Task<List<MovieMetadata>> GetPagedMovies(int pageNumber, int pageSize);
+        Task<List<MovieMetadata>> GetMoviesForCards(List<int> ids);
         Task<IEnumerable<string>> FindMoviePaths(LibraryPath libraryPath);
-        Task<Unit> DeleteByPath(LibraryPath libraryPath, string path);
-        Task<Unit> AddGenre(MovieMetadata metadata, Genre genre);
-        Task<Unit> RemoveMissingPlexMovies(PlexLibrary library, List<string> movieKeys);
+        Task<List<int>> DeleteByPath(LibraryPath libraryPath, string path);
+        Task<bool> AddGenre(MovieMetadata metadata, Genre genre);
+        Task<List<int>> RemoveMissingPlexMovies(PlexLibrary library, List<string> movieKeys);
     }
 }

ErsatzTV.Core/Interfaces/Repositories/ISearchRepository.cs

@@ -6,6 +6,7 @@ namespace ErsatzTV.Core.Interfaces.Repositories
 {
     public interface ISearchRepository
     {
+        public Task<List<MediaItem>> GetItemsToIndex();
         public Task<List<MediaItem>> SearchMediaItemsByTitle(string query);
         public Task<List<MediaItem>> SearchMediaItemsByGenre(string genre);
         public Task<List<MediaItem>> SearchMediaItemsByTag(string tag);

ErsatzTV.Core/Interfaces/Repositories/ITelevisionRepository.cs

@@ -1,6 +1,7 @@
 using System.Collections.Generic;
 using System.Threading.Tasks;
 using ErsatzTV.Core.Domain;
+using ErsatzTV.Core.Metadata;
 using LanguageExt;
 
 namespace ErsatzTV.Core.Interfaces.Repositories
@@ -12,6 +13,7 @@ namespace ErsatzTV.Core.Interfaces.Repositories
         Task<Option<Show>> GetShow(int showId);
         Task<int> GetShowCount();
         Task<List<ShowMetadata>> GetPagedShows(int pageNumber, int pageSize);
+        Task<List<ShowMetadata>> GetShowsForCards(List<int> ids);
         Task<List<Episode>> GetShowItems(int showId);
         Task<List<Season>> GetAllSeasons();
         Task<Option<Season>> GetSeason(int seasonId);
@@ -22,18 +24,23 @@ namespace ErsatzTV.Core.Interfaces.Repositories
         Task<int> GetEpisodeCount(int seasonId);
         Task<List<EpisodeMetadata>> GetPagedEpisodes(int seasonId, int pageNumber, int pageSize);
         Task<Option<Show>> GetShowByMetadata(int libraryPathId, ShowMetadata metadata);
-        Task<Either<BaseError, Show>> AddShow(int libraryPathId, string showFolder, ShowMetadata metadata);
+
+        Task<Either<BaseError, MediaItemScanResult<Show>>> AddShow(
+            int libraryPathId,
+            string showFolder,
+            ShowMetadata metadata);
+
         Task<Either<BaseError, Season>> GetOrAddSeason(Show show, int libraryPathId, int seasonNumber);
         Task<Either<BaseError, Episode>> GetOrAddEpisode(Season season, LibraryPath libraryPath, string path);
         Task<IEnumerable<string>> FindEpisodePaths(LibraryPath libraryPath);
         Task<Unit> DeleteByPath(LibraryPath libraryPath, string path);
         Task<Unit> DeleteEmptySeasons(LibraryPath libraryPath);
-        Task<Unit> DeleteEmptyShows(LibraryPath libraryPath);
-        Task<Either<BaseError, PlexShow>> GetOrAddPlexShow(PlexLibrary library, PlexShow item);
+        Task<List<int>> DeleteEmptyShows(LibraryPath libraryPath);
+        Task<Either<BaseError, MediaItemScanResult<PlexShow>>> GetOrAddPlexShow(PlexLibrary library, PlexShow item);
         Task<Either<BaseError, PlexSeason>> GetOrAddPlexSeason(PlexLibrary library, PlexSeason item);
         Task<Either<BaseError, PlexEpisode>> GetOrAddPlexEpisode(PlexLibrary library, PlexEpisode item);
-        Task<Unit> AddGenre(ShowMetadata metadata, Genre genre);
-        Task<Unit> RemoveMissingPlexShows(PlexLibrary library, List<string> showKeys);
+        Task<bool> AddGenre(ShowMetadata metadata, Genre genre);
+        Task<List<int>> RemoveMissingPlexShows(PlexLibrary library, List<string> showKeys);
         Task<Unit> RemoveMissingPlexSeasons(string showKey, List<string> seasonKeys);
         Task<Unit> RemoveMissingPlexEpisodes(string seasonKey, List<string> episodeKeys);
         Task<Unit> SetEpisodeNumber(Episode episode, int episodeNumber);

ErsatzTV.Core/Interfaces/Search/ISearchIndex.cs

@@ -0,0 +1,19 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using ErsatzTV.Core.Domain;
+using ErsatzTV.Core.Search;
+using LanguageExt;
+
+namespace ErsatzTV.Core.Interfaces.Search
+{
+    public interface ISearchIndex
+    {
+        public int Version { get; }
+        Task<bool> Initialize();
+        Task<Unit> Rebuild(List<MediaItem> items);
+        Task<Unit> AddItems(List<MediaItem> items);
+        Task<Unit> UpdateItems(List<MediaItem> items);
+        Task<Unit> RemoveItems(List<int> ids);
+        Task<SearchResult> Search(string query, int skip, int limit, string searchField = "");
+    }
+}

ErsatzTV.Core/Metadata/LocalFileSystem.cs

@@ -11,6 +11,16 @@ namespace ErsatzTV.Core.Metadata
 {
     public class LocalFileSystem : ILocalFileSystem
     {
+        public Unit EnsureFolderExists(string folder)
+        {
+            if (!Directory.Exists(folder))
+            {
+                Directory.CreateDirectory(folder);
+            }
+
+            return Unit.Default;
+        }
+
         public DateTime GetLastWriteTime(string path) =>
             Try(File.GetLastWriteTimeUtc(path)).IfFail(() => DateTime.MinValue);
 

ErsatzTV.Core/Metadata/LocalFolderScanner.cs

@@ -66,12 +66,14 @@ namespace ErsatzTV.Core.Metadata
             _logger = logger;
         }
 
-        protected async Task<Either<BaseError, T>> UpdateStatistics<T>(T mediaItem, string ffprobePath)
+        protected async Task<Either<BaseError, MediaItemScanResult<T>>> UpdateStatistics<T>(
+            MediaItemScanResult<T> mediaItem,
+            string ffprobePath)
             where T : MediaItem
         {
             try
             {
-                MediaVersion version = mediaItem switch
+                MediaVersion version = mediaItem.Item switch
                 {
                     Movie m => m.MediaVersions.Head(),
                     Episode e => e.MediaVersions.Head(),
@@ -83,9 +85,16 @@ namespace ErsatzTV.Core.Metadata
                 if (version.DateUpdated < _localFileSystem.GetLastWriteTime(path))
                 {
                     _logger.LogDebug("Refreshing {Attribute} for {Path}", "Statistics", path);
-                    Either<BaseError, Unit> refreshResult =
-                        await _localStatisticsProvider.RefreshStatistics(ffprobePath, mediaItem);
-                    refreshResult.IfLeft(
+                    Either<BaseError, bool> refreshResult =
+                        await _localStatisticsProvider.RefreshStatistics(ffprobePath, mediaItem.Item);
+                    refreshResult.Match(
+                        result =>
+                        {
+                            if (result)
+                            {
+                                mediaItem.IsUpdated = true;
+                            }
+                        },
                         error =>
                             _logger.LogWarning(
                                 "Unable to refresh {Attribute} for media item {Path}. Error: {Error}",

ErsatzTV.Core/Metadata/LocalMetadataProvider.cs

@@ -22,19 +22,16 @@ namespace ErsatzTV.Core.Metadata
         private readonly ILocalFileSystem _localFileSystem;
         private readonly ILogger<LocalMetadataProvider> _logger;
 
-        private readonly IMediaItemRepository _mediaItemRepository;
         private readonly IMetadataRepository _metadataRepository;
         private readonly ITelevisionRepository _televisionRepository;
 
         public LocalMetadataProvider(
-            IMediaItemRepository mediaItemRepository,
             IMetadataRepository metadataRepository,
             ITelevisionRepository televisionRepository,
             IFallbackMetadataProvider fallbackMetadataProvider,
             ILocalFileSystem localFileSystem,
             ILogger<LocalMetadataProvider> logger)
         {
-            _mediaItemRepository = mediaItemRepository;
             _metadataRepository = metadataRepository;
             _televisionRepository = televisionRepository;
             _fallbackMetadataProvider = fallbackMetadataProvider;
@@ -65,40 +62,47 @@ namespace ErsatzTV.Core.Metadata
                 });
         }
 
-        public Task<Unit> RefreshSidecarMetadata(MediaItem mediaItem, string path) =>
+        public Task<bool> RefreshSidecarMetadata(MediaItem mediaItem, string path) =>
             mediaItem switch
             {
                 Episode e => LoadMetadata(e, path)
-                    .Bind(maybeMetadata => maybeMetadata.IfSomeAsync(metadata => ApplyMetadataUpdate(e, metadata))),
+                    .Bind(
+                        maybeMetadata => maybeMetadata.Match(
+                            metadata => ApplyMetadataUpdate(e, metadata),
+                            () => Task.FromResult(false))),
                 Movie m => LoadMetadata(m, path)
-                    .Bind(maybeMetadata => maybeMetadata.IfSomeAsync(metadata => ApplyMetadataUpdate(m, metadata))),
-                _ => Task.FromResult(Unit.Default)
+                    .Bind(
+                        maybeMetadata => maybeMetadata.Match(
+                            metadata => ApplyMetadataUpdate(m, metadata),
+                            () => Task.FromResult(false))),
+                _ => Task.FromResult(false)
             };
 
-        public Task<Unit> RefreshSidecarMetadata(Show televisionShow, string showFolder) =>
+        public Task<bool> RefreshSidecarMetadata(Show televisionShow, string showFolder) =>
             LoadMetadata(televisionShow, showFolder).Bind(
-                maybeMetadata => maybeMetadata.IfSomeAsync(metadata => ApplyMetadataUpdate(televisionShow, metadata)));
+                maybeMetadata => maybeMetadata.Match(
+                    metadata => ApplyMetadataUpdate(televisionShow, metadata),
+                    () => Task.FromResult(false)));
 
-        public Task<Unit> RefreshFallbackMetadata(MediaItem mediaItem) =>
+        public Task<bool> RefreshFallbackMetadata(MediaItem mediaItem) =>
             mediaItem switch
             {
-                Episode e => ApplyMetadataUpdate(e, _fallbackMetadataProvider.GetFallbackMetadata(e))
-                    .ToUnit(),
-                Movie m => ApplyMetadataUpdate(m, _fallbackMetadataProvider.GetFallbackMetadata(m)).ToUnit(),
-                _ => Task.FromResult(Unit.Default)
+                Episode e => ApplyMetadataUpdate(e, _fallbackMetadataProvider.GetFallbackMetadata(e)),
+                Movie m => ApplyMetadataUpdate(m, _fallbackMetadataProvider.GetFallbackMetadata(m)),
+                _ => Task.FromResult(false)
             };
 
-        public Task<Unit> RefreshFallbackMetadata(Show televisionShow, string showFolder) =>
-            ApplyMetadataUpdate(televisionShow, _fallbackMetadataProvider.GetFallbackMetadataForShow(showFolder))
-                .ToUnit();
+        public Task<bool> RefreshFallbackMetadata(Show televisionShow, string showFolder) =>
+            ApplyMetadataUpdate(televisionShow, _fallbackMetadataProvider.GetFallbackMetadataForShow(showFolder));
 
-        private async Task ApplyMetadataUpdate(Episode episode, Tuple<EpisodeMetadata, int> metadataEpisodeNumber)
+        private async Task<bool> ApplyMetadataUpdate(Episode episode, Tuple<EpisodeMetadata, int> metadataEpisodeNumber)
         {
             (EpisodeMetadata metadata, int episodeNumber) = metadataEpisodeNumber;
             if (episode.EpisodeNumber != episodeNumber)
             {
                 await _televisionRepository.SetEpisodeNumber(episode, episodeNumber);
             }
+
             await Optional(episode.EpisodeMetadata).Flatten().HeadOrNone().Match(
                 existing =>
                 {
@@ -128,9 +132,11 @@ namespace ErsatzTV.Core.Metadata
 
                     return _metadataRepository.Add(metadata);
                 });
+
+            return true;
         }
 
-        private Task ApplyMetadataUpdate(Movie movie, MovieMetadata metadata) =>
+        private Task<bool> ApplyMetadataUpdate(Movie movie, MovieMetadata metadata) =>
             Optional(movie.MovieMetadata).Flatten().HeadOrNone().Match(
                 existing =>
                 {
@@ -185,7 +191,7 @@ namespace ErsatzTV.Core.Metadata
                     return _metadataRepository.Add(metadata);
                 });
 
-        private Task ApplyMetadataUpdate(Show show, ShowMetadata metadata) =>
+        private Task<bool> ApplyMetadataUpdate(Show show, ShowMetadata metadata) =>
             Optional(show.ShowMetadata).Flatten().HeadOrNone().Match(
                 existing =>
                 {

ErsatzTV.Core/Metadata/LocalStatisticsProvider.cs

@@ -17,22 +17,19 @@ namespace ErsatzTV.Core.Metadata
     {
         private readonly ILocalFileSystem _localFileSystem;
         private readonly ILogger<LocalStatisticsProvider> _logger;
-        private readonly IMediaItemRepository _mediaItemRepository;
         private readonly IMetadataRepository _metadataRepository;
 
         public LocalStatisticsProvider(
-            IMediaItemRepository mediaItemRepository,
             IMetadataRepository metadataRepository,
             ILocalFileSystem localFileSystem,
             ILogger<LocalStatisticsProvider> logger)
         {
-            _mediaItemRepository = mediaItemRepository;
             _metadataRepository = metadataRepository;
             _localFileSystem = localFileSystem;
             _logger = logger;
         }
 
-        public async Task<Either<BaseError, Unit>> RefreshStatistics(string ffprobePath, MediaItem mediaItem)
+        public async Task<Either<BaseError, bool>> RefreshStatistics(string ffprobePath, MediaItem mediaItem)
         {
             try
             {
@@ -48,10 +45,10 @@ namespace ErsatzTV.Core.Metadata
                     async ffprobe =>
                     {
                         MediaVersion version = ProjectToMediaVersion(ffprobe);
-                        await ApplyVersionUpdate(mediaItem, version, filePath);
-                        return Right<BaseError, Unit>(Unit.Default);
+                        bool result = await ApplyVersionUpdate(mediaItem, version, filePath);
+                        return Right<BaseError, bool>(result);
                     },
-                    error => Task.FromResult(Left<BaseError, Unit>(error)));
+                    error => Task.FromResult(Left<BaseError, bool>(error)));
             }
             catch (Exception ex)
             {

ErsatzTV.Core/Metadata/MediaItemScanResult.cs

@@ -0,0 +1,14 @@
+using ErsatzTV.Core.Domain;
+
+namespace ErsatzTV.Core.Metadata
+{
+    public class MediaItemScanResult<T> where T : MediaItem
+    {
+        public MediaItemScanResult(T item) => Item = item;
+
+        public T Item { get; }
+
+        public bool IsAdded { get; set; }
+        public bool IsUpdated { get; set; }
+    }
+}

ErsatzTV.Core/Metadata/MovieFolderScanner.cs

@@ -8,6 +8,7 @@ using ErsatzTV.Core.Errors;
 using ErsatzTV.Core.Interfaces.Images;
 using ErsatzTV.Core.Interfaces.Metadata;
 using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Interfaces.Search;
 using LanguageExt;
 using Microsoft.Extensions.Logging;
 using static LanguageExt.Prelude;
@@ -21,6 +22,7 @@ namespace ErsatzTV.Core.Metadata
         private readonly ILocalMetadataProvider _localMetadataProvider;
         private readonly ILogger<MovieFolderScanner> _logger;
         private readonly IMovieRepository _movieRepository;
+        private readonly ISearchIndex _searchIndex;
 
         public MovieFolderScanner(
             ILocalFileSystem localFileSystem,
@@ -29,12 +31,14 @@ namespace ErsatzTV.Core.Metadata
             ILocalMetadataProvider localMetadataProvider,
             IMetadataRepository metadataRepository,
             IImageCache imageCache,
+            ISearchIndex searchIndex,
             ILogger<MovieFolderScanner> logger)
             : base(localFileSystem, localStatisticsProvider, metadataRepository, imageCache, logger)
         {
             _localFileSystem = localFileSystem;
             _movieRepository = movieRepository;
             _localMetadataProvider = localMetadataProvider;
+            _searchIndex = searchIndex;
             _logger = logger;
         }
 
@@ -72,19 +76,33 @@ namespace ErsatzTV.Core.Metadata
                     continue;
                 }
 
-
                 foreach (string file in allFiles.OrderBy(identity))
                 {
                     // TODO: figure out how to rebuild playlists
-                    Either<BaseError, Movie> maybeMovie = await _movieRepository
+                    Either<BaseError, MediaItemScanResult<Movie>> maybeMovie = await _movieRepository
                         .GetOrAdd(libraryPath, file)
-                        .BindT(movie => UpdateStatistics(movie, ffprobePath).MapT(_ => movie))
+                        .BindT(movie => UpdateStatistics(movie, ffprobePath))
                         .BindT(UpdateMetadata)
                         .BindT(movie => UpdateArtwork(movie, ArtworkKind.Poster))
                         .BindT(movie => UpdateArtwork(movie, ArtworkKind.FanArt));
 
-                    maybeMovie.IfLeft(
-                        error => _logger.LogWarning("Error processing movie at {Path}: {Error}", file, error.Value));
+                    await maybeMovie.Match(
+                        async result =>
+                        {
+                            if (result.IsAdded)
+                            {
+                                await _searchIndex.AddItems(new List<MediaItem> { result.Item });
+                            }
+                            else if (result.IsUpdated)
+                            {
+                                await _searchIndex.UpdateItems(new List<MediaItem> { result.Item });
+                            }
+                        },
+                        error =>
+                        {
+                            _logger.LogWarning("Error processing movie at {Path}: {Error}", file, error.Value);
+                            return Task.CompletedTask;
+                        });
                 }
             }
 
@@ -93,17 +111,20 @@ namespace ErsatzTV.Core.Metadata
                 if (!_localFileSystem.FileExists(path))
                 {
                     _logger.LogInformation("Removing missing movie at {Path}", path);
-                    await _movieRepository.DeleteByPath(libraryPath, path);
+                    List<int> ids = await _movieRepository.DeleteByPath(libraryPath, path);
+                    await _searchIndex.RemoveItems(ids);
                 }
             }
 
             return Unit.Default;
         }
 
-        private async Task<Either<BaseError, Movie>> UpdateMetadata(Movie movie)
+        private async Task<Either<BaseError, MediaItemScanResult<Movie>>> UpdateMetadata(
+            MediaItemScanResult<Movie> result)
         {
             try
             {
+                Movie movie = result.Item;
                 await LocateNfoFile(movie).Match(
                     async nfoFile =>
                     {
@@ -115,7 +136,10 @@ namespace ErsatzTV.Core.Metadata
                         if (shouldUpdate)
                         {
                             _logger.LogDebug("Refreshing {Attribute} from {Path}", "Sidecar Metadata", nfoFile);
-                            await _localMetadataProvider.RefreshSidecarMetadata(movie, nfoFile);
+                            if (await _localMetadataProvider.RefreshSidecarMetadata(movie, nfoFile))
+                            {
+                                result.IsUpdated = true;
+                            }
                         }
                     },
                     async () =>
@@ -124,11 +148,14 @@ namespace ErsatzTV.Core.Metadata
                         {
                             string path = movie.MediaVersions.Head().MediaFiles.Head().Path;
                             _logger.LogDebug("Refreshing {Attribute} for {Path}", "Fallback Metadata", path);
-                            await _localMetadataProvider.RefreshFallbackMetadata(movie);
+                            if (await _localMetadataProvider.RefreshFallbackMetadata(movie))
+                            {
+                                result.IsUpdated = true;
+                            }
                         }
                     });
 
-                return movie;
+                return result;
             }
             catch (Exception ex)
             {
@@ -136,10 +163,13 @@ namespace ErsatzTV.Core.Metadata
             }
         }
 
-        private async Task<Either<BaseError, Movie>> UpdateArtwork(Movie movie, ArtworkKind artworkKind)
+        private async Task<Either<BaseError, MediaItemScanResult<Movie>>> UpdateArtwork(
+            MediaItemScanResult<Movie> result,
+            ArtworkKind artworkKind)
         {
             try
             {
+                Movie movie = result.Item;
                 await LocateArtwork(movie, artworkKind).IfSomeAsync(
                     async posterFile =>
                     {
@@ -147,7 +177,7 @@ namespace ErsatzTV.Core.Metadata
                         await RefreshArtwork(posterFile, metadata, artworkKind);
                     });
 
-                return movie;
+                return result;
             }
             catch (Exception ex)
             {

ErsatzTV.Core/Metadata/TelevisionFolderScanner.cs

@@ -8,6 +8,7 @@ using ErsatzTV.Core.Errors;
 using ErsatzTV.Core.Interfaces.Images;
 using ErsatzTV.Core.Interfaces.Metadata;
 using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Interfaces.Search;
 using LanguageExt;
 using Microsoft.Extensions.Logging;
 using static LanguageExt.Prelude;
@@ -19,6 +20,7 @@ namespace ErsatzTV.Core.Metadata
         private readonly ILocalFileSystem _localFileSystem;
         private readonly ILocalMetadataProvider _localMetadataProvider;
         private readonly ILogger<TelevisionFolderScanner> _logger;
+        private readonly ISearchIndex _searchIndex;
         private readonly ITelevisionRepository _televisionRepository;
 
         public TelevisionFolderScanner(
@@ -28,6 +30,7 @@ namespace ErsatzTV.Core.Metadata
             ILocalMetadataProvider localMetadataProvider,
             IMetadataRepository metadataRepository,
             IImageCache imageCache,
+            ISearchIndex searchIndex,
             ILogger<TelevisionFolderScanner> logger) : base(
             localFileSystem,
             localStatisticsProvider,
@@ -38,6 +41,7 @@ namespace ErsatzTV.Core.Metadata
             _localFileSystem = localFileSystem;
             _televisionRepository = televisionRepository;
             _localMetadataProvider = localMetadataProvider;
+            _searchIndex = searchIndex;
             _logger = logger;
         }
 
@@ -55,14 +59,26 @@ namespace ErsatzTV.Core.Metadata
 
             foreach (string showFolder in allShowFolders)
             {
-                Either<BaseError, Show> maybeShow =
+                Either<BaseError, MediaItemScanResult<Show>> maybeShow =
                     await FindOrCreateShow(libraryPath.Id, showFolder)
                         .BindT(show => UpdateMetadataForShow(show, showFolder))
                         .BindT(show => UpdateArtworkForShow(show, showFolder, ArtworkKind.Poster))
                         .BindT(show => UpdateArtworkForShow(show, showFolder, ArtworkKind.FanArt));
 
                 await maybeShow.Match(
-                    show => ScanSeasons(libraryPath, ffprobePath, show, showFolder),
+                    async result =>
+                    {
+                        if (result.IsAdded)
+                        {
+                            await _searchIndex.AddItems(new List<MediaItem> { result.Item });
+                        }
+                        else if (result.IsUpdated)
+                        {
+                            await _searchIndex.UpdateItems(new List<MediaItem> { result.Item });
+                        }
+
+                        await ScanSeasons(libraryPath, ffprobePath, result.Item, showFolder);
+                    },
                     _ => Task.FromResult(Unit.Default));
             }
 
@@ -76,19 +92,20 @@ namespace ErsatzTV.Core.Metadata
             }
 
             await _televisionRepository.DeleteEmptySeasons(libraryPath);
-            await _televisionRepository.DeleteEmptyShows(libraryPath);
+            List<int> ids = await _televisionRepository.DeleteEmptyShows(libraryPath);
+            await _searchIndex.RemoveItems(ids);
 
             return Unit.Default;
         }
 
-        private async Task<Either<BaseError, Show>> FindOrCreateShow(
+        private async Task<Either<BaseError, MediaItemScanResult<Show>>> FindOrCreateShow(
             int libraryPathId,
             string showFolder)
         {
             ShowMetadata metadata = await _localMetadataProvider.GetMetadataForShow(showFolder);
             Option<Show> maybeShow = await _televisionRepository.GetShowByMetadata(libraryPathId, metadata);
             return await maybeShow.Match(
-                show => Right<BaseError, Show>(show).AsTask(),
+                show => Right<BaseError, MediaItemScanResult<Show>>(new MediaItemScanResult<Show>(show)).AsTask(),
                 async () => await _televisionRepository.AddShow(libraryPathId, showFolder, metadata));
         }
 
@@ -130,7 +147,9 @@ namespace ErsatzTV.Core.Metadata
                 // TODO: figure out how to rebuild playlists
                 Either<BaseError, Episode> maybeEpisode = await _televisionRepository
                     .GetOrAddEpisode(season, libraryPath, file)
-                    .BindT(episode => UpdateStatistics(episode, ffprobePath).MapT(_ => episode))
+                    .BindT(
+                        episode => UpdateStatistics(new MediaItemScanResult<Episode>(episode), ffprobePath)
+                            .MapT(_ => episode))
                     .BindT(UpdateMetadata)
                     .BindT(UpdateThumbnail);
 
@@ -141,12 +160,13 @@ namespace ErsatzTV.Core.Metadata
             return Unit.Default;
         }
 
-        private async Task<Either<BaseError, Show>> UpdateMetadataForShow(
-            Show show,
+        private async Task<Either<BaseError, MediaItemScanResult<Show>>> UpdateMetadataForShow(
+            MediaItemScanResult<Show> result,
             string showFolder)
         {
             try
             {
+                Show show = result.Item;
                 await LocateNfoFileForShow(showFolder).Match(
                     async nfoFile =>
                     {
@@ -158,7 +178,10 @@ namespace ErsatzTV.Core.Metadata
                         if (shouldUpdate)
                         {
                             _logger.LogDebug("Refreshing {Attribute} from {Path}", "Sidecar Metadata", nfoFile);
-                            await _localMetadataProvider.RefreshSidecarMetadata(show, nfoFile);
+                            if (await _localMetadataProvider.RefreshSidecarMetadata(show, nfoFile))
+                            {
+                                result.IsUpdated = true;
+                            }
                         }
                     },
                     async () =>
@@ -166,11 +189,14 @@ namespace ErsatzTV.Core.Metadata
                         if (!Optional(show.ShowMetadata).Flatten().Any())
                         {
                             _logger.LogDebug("Refreshing {Attribute} for {Path}", "Fallback Metadata", showFolder);
-                            await _localMetadataProvider.RefreshFallbackMetadata(show, showFolder);
+                            if (await _localMetadataProvider.RefreshFallbackMetadata(show, showFolder))
+                            {
+                                result.IsUpdated = true;
+                            }
                         }
                     });
 
-                return show;
+                return result;
             }
             catch (Exception ex)
             {
@@ -215,13 +241,14 @@ namespace ErsatzTV.Core.Metadata
             }
         }
 
-        private async Task<Either<BaseError, Show>> UpdateArtworkForShow(
-            Show show,
+        private async Task<Either<BaseError, MediaItemScanResult<Show>>> UpdateArtworkForShow(
+            MediaItemScanResult<Show> result,
             string showFolder,
             ArtworkKind artworkKind)
         {
             try
             {
+                Show show = result.Item;
                 await LocateArtworkForShow(showFolder, artworkKind).IfSomeAsync(
                     async posterFile =>
                     {
@@ -229,7 +256,7 @@ namespace ErsatzTV.Core.Metadata
                         await RefreshArtwork(posterFile, metadata, artworkKind);
                     });
 
-                return show;
+                return result;
             }
             catch (Exception ex)
             {

ErsatzTV.Core/Plex/PlexMovieLibraryScanner.cs

@@ -4,9 +4,10 @@ using System.Threading.Tasks;
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Interfaces.Plex;
 using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Interfaces.Search;
+using ErsatzTV.Core.Metadata;
 using LanguageExt;
 using Microsoft.Extensions.Logging;
-using static LanguageExt.Prelude;
 
 namespace ErsatzTV.Core.Plex
 {
@@ -16,17 +17,20 @@ namespace ErsatzTV.Core.Plex
         private readonly IMetadataRepository _metadataRepository;
         private readonly IMovieRepository _movieRepository;
         private readonly IPlexServerApiClient _plexServerApiClient;
+        private readonly ISearchIndex _searchIndex;
 
         public PlexMovieLibraryScanner(
             IPlexServerApiClient plexServerApiClient,
             IMovieRepository movieRepository,
             IMetadataRepository metadataRepository,
+            ISearchIndex searchIndex,
             ILogger<PlexMovieLibraryScanner> logger)
             : base(metadataRepository)
         {
             _plexServerApiClient = plexServerApiClient;
             _movieRepository = movieRepository;
             _metadataRepository = metadataRepository;
+            _searchIndex = searchIndex;
             _logger = logger;
         }
 
@@ -46,21 +50,37 @@ namespace ErsatzTV.Core.Plex
                     foreach (PlexMovie incoming in movieEntries)
                     {
                         // TODO: figure out how to rebuild playlists
-                        Either<BaseError, PlexMovie> maybeMovie = await _movieRepository
+                        Either<BaseError, MediaItemScanResult<PlexMovie>> maybeMovie = await _movieRepository
                             .GetOrAdd(plexMediaSourceLibrary, incoming)
                             .BindT(existing => UpdateStatistics(existing, incoming, connection, token))
                             .BindT(existing => UpdateMetadata(existing, incoming))
                             .BindT(existing => UpdateArtwork(existing, incoming));
 
-                        maybeMovie.IfLeft(
-                            error => _logger.LogWarning(
-                                "Error processing plex movie at {Key}: {Error}",
-                                incoming.Key,
-                                error.Value));
+                        await maybeMovie.Match(
+                            async result =>
+                            {
+                                if (result.IsAdded)
+                                {
+                                    await _searchIndex.AddItems(new List<MediaItem> { result.Item });
+                                }
+                                else if (result.IsUpdated)
+                                {
+                                    await _searchIndex.UpdateItems(new List<MediaItem> { result.Item });
+                                }
+                            },
+                            error =>
+                            {
+                                _logger.LogWarning(
+                                    "Error processing plex movie at {Key}: {Error}",
+                                    incoming.Key,
+                                    error.Value);
+                                return Task.CompletedTask;
+                            });
                     }
 
                     var movieKeys = movieEntries.Map(s => s.Key).ToList();
-                    await _movieRepository.RemoveMissingPlexMovies(plexMediaSourceLibrary, movieKeys);
+                    List<int> ids = await _movieRepository.RemoveMissingPlexMovies(plexMediaSourceLibrary, movieKeys);
+                    await _searchIndex.RemoveItems(ids);
                 },
                 error =>
                 {
@@ -75,12 +95,13 @@ namespace ErsatzTV.Core.Plex
             return Unit.Default;
         }
 
-        private async Task<Either<BaseError, PlexMovie>> UpdateStatistics(
-            PlexMovie existing,
+        private async Task<Either<BaseError, MediaItemScanResult<PlexMovie>>> UpdateStatistics(
+            MediaItemScanResult<PlexMovie> result,
             PlexMovie incoming,
             PlexConnection connection,
             PlexServerAuthToken token)
         {
+            PlexMovie existing = result.Item;
             MediaVersion existingVersion = existing.MediaVersions.Head();
             MediaVersion incomingVersion = incoming.MediaVersions.Head();
 
@@ -102,11 +123,14 @@ namespace ErsatzTV.Core.Plex
                     _ => Task.CompletedTask);
             }
 
-            return Right<BaseError, PlexMovie>(existing);
+            return result;
         }
 
-        private async Task<Either<BaseError, PlexMovie>> UpdateMetadata(PlexMovie existing, PlexMovie incoming)
+        private async Task<Either<BaseError, MediaItemScanResult<PlexMovie>>> UpdateMetadata(
+            MediaItemScanResult<PlexMovie> result,
+            PlexMovie incoming)
         {
+            PlexMovie existing = result.Item;
             MovieMetadata existingMetadata = existing.MovieMetadata.Head();
             MovieMetadata incomingMetadata = incoming.MovieMetadata.Head();
 
@@ -117,7 +141,10 @@ namespace ErsatzTV.Core.Plex
                     .ToList())
                 {
                     existingMetadata.Genres.Remove(genre);
-                    await _metadataRepository.RemoveGenre(genre);
+                    if (await _metadataRepository.RemoveGenre(genre))
+                    {
+                        result.IsUpdated = true;
+                    }
                 }
 
                 foreach (Genre genre in incomingMetadata.Genres
@@ -125,17 +152,23 @@ namespace ErsatzTV.Core.Plex
                     .ToList())
                 {
                     existingMetadata.Genres.Add(genre);
-                    await _movieRepository.AddGenre(existingMetadata, genre);
+                    if (await _movieRepository.AddGenre(existingMetadata, genre))
+                    {
+                        result.IsUpdated = true;
+                    }
                 }
-                
+
                 // TODO: update other metadata?
             }
 
-            return existing;
+            return result;
         }
 
-        private async Task<Either<BaseError, PlexMovie>> UpdateArtwork(PlexMovie existing, PlexMovie incoming)
+        private async Task<Either<BaseError, MediaItemScanResult<PlexMovie>>> UpdateArtwork(
+            MediaItemScanResult<PlexMovie> result,
+            PlexMovie incoming)
         {
+            PlexMovie existing = result.Item;
             MovieMetadata existingMetadata = existing.MovieMetadata.Head();
             MovieMetadata incomingMetadata = incoming.MovieMetadata.Head();
 
@@ -145,7 +178,7 @@ namespace ErsatzTV.Core.Plex
                 await UpdateArtworkIfNeeded(existingMetadata, incomingMetadata, ArtworkKind.FanArt);
             }
 
-            return existing;
+            return result;
         }
     }
 }

ErsatzTV.Core/Plex/PlexTelevisionLibraryScanner.cs

@@ -4,6 +4,8 @@ using System.Threading.Tasks;
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Interfaces.Plex;
 using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Interfaces.Search;
+using ErsatzTV.Core.Metadata;
 using LanguageExt;
 using Microsoft.Extensions.Logging;
 using static LanguageExt.Prelude;
@@ -15,18 +17,21 @@ namespace ErsatzTV.Core.Plex
         private readonly ILogger<PlexTelevisionLibraryScanner> _logger;
         private readonly IMetadataRepository _metadataRepository;
         private readonly IPlexServerApiClient _plexServerApiClient;
+        private readonly ISearchIndex _searchIndex;
         private readonly ITelevisionRepository _televisionRepository;
 
         public PlexTelevisionLibraryScanner(
             IPlexServerApiClient plexServerApiClient,
             ITelevisionRepository televisionRepository,
             IMetadataRepository metadataRepository,
+            ISearchIndex searchIndex,
             ILogger<PlexTelevisionLibraryScanner> logger)
             : base(metadataRepository)
         {
             _plexServerApiClient = plexServerApiClient;
             _televisionRepository = televisionRepository;
             _metadataRepository = metadataRepository;
+            _searchIndex = searchIndex;
             _logger = logger;
         }
 
@@ -46,13 +51,25 @@ namespace ErsatzTV.Core.Plex
                     foreach (PlexShow incoming in showEntries)
                     {
                         // TODO: figure out how to rebuild playlists
-                        Either<BaseError, PlexShow> maybeShow = await _televisionRepository
+                        Either<BaseError, MediaItemScanResult<PlexShow>> maybeShow = await _televisionRepository
                             .GetOrAddPlexShow(plexMediaSourceLibrary, incoming)
                             .BindT(existing => UpdateMetadata(existing, incoming))
                             .BindT(existing => UpdateArtwork(existing, incoming));
 
                         await maybeShow.Match(
-                            async show => await ScanSeasons(plexMediaSourceLibrary, show, connection, token),
+                            async result =>
+                            {
+                                if (result.IsAdded)
+                                {
+                                    await _searchIndex.AddItems(new List<MediaItem> { result.Item });
+                                }
+                                else if (result.IsUpdated)
+                                {
+                                    await _searchIndex.UpdateItems(new List<MediaItem> { result.Item });
+                                }
+
+                                await ScanSeasons(plexMediaSourceLibrary, result.Item, connection, token);
+                            },
                             error =>
                             {
                                 _logger.LogWarning(
@@ -64,7 +81,9 @@ namespace ErsatzTV.Core.Plex
                     }
 
                     var showKeys = showEntries.Map(s => s.Key).ToList();
-                    await _televisionRepository.RemoveMissingPlexShows(plexMediaSourceLibrary, showKeys);
+                    List<int> ids =
+                        await _televisionRepository.RemoveMissingPlexShows(plexMediaSourceLibrary, showKeys);
+                    await _searchIndex.RemoveItems(ids);
 
                     return Unit.Default;
                 },
@@ -79,8 +98,11 @@ namespace ErsatzTV.Core.Plex
                 });
         }
 
-        private Task<Either<BaseError, PlexShow>> UpdateMetadata(PlexShow existing, PlexShow incoming)
+        private async Task<Either<BaseError, MediaItemScanResult<PlexShow>>> UpdateMetadata(
+            MediaItemScanResult<PlexShow> result,
+            PlexShow incoming)
         {
+            PlexShow existing = result.Item;
             ShowMetadata existingMetadata = existing.ShowMetadata.Head();
             ShowMetadata incomingMetadata = incoming.ShowMetadata.Head();
 
@@ -93,7 +115,10 @@ namespace ErsatzTV.Core.Plex
                     .ToList())
                 {
                     existingMetadata.Genres.Remove(genre);
-                    _metadataRepository.RemoveGenre(genre);
+                    if (await _metadataRepository.RemoveGenre(genre))
+                    {
+                        result.IsUpdated = true;
+                    }
                 }
 
                 foreach (Genre genre in incomingMetadata.Genres
@@ -101,15 +126,21 @@ namespace ErsatzTV.Core.Plex
                     .ToList())
                 {
                     existingMetadata.Genres.Add(genre);
-                    _televisionRepository.AddGenre(existingMetadata, genre);
+                    if (await _televisionRepository.AddGenre(existingMetadata, genre))
+                    {
+                        result.IsUpdated = true;
+                    }
                 }
             }
 
-            return Right<BaseError, PlexShow>(existing).AsTask();
+            return result;
         }
 
-        private async Task<Either<BaseError, PlexShow>> UpdateArtwork(PlexShow existing, PlexShow incoming)
+        private async Task<Either<BaseError, MediaItemScanResult<PlexShow>>> UpdateArtwork(
+            MediaItemScanResult<PlexShow> result,
+            PlexShow incoming)
         {
+            PlexShow existing = result.Item;
             ShowMetadata existingMetadata = existing.ShowMetadata.Head();
             ShowMetadata incomingMetadata = incoming.ShowMetadata.Head();
 
@@ -119,7 +150,7 @@ namespace ErsatzTV.Core.Plex
                 await UpdateArtworkIfNeeded(existingMetadata, incomingMetadata, ArtworkKind.FanArt);
             }
 
-            return existing;
+            return result;
         }
 
         private async Task<Either<BaseError, Unit>> ScanSeasons(

ErsatzTV.Core/Search/SearchItem.cs

@@ -0,0 +1,4 @@
+namespace ErsatzTV.Core.Search
+{
+    public record SearchItem(int Id);
+}

ErsatzTV.Core/Search/SearchPageMap.cs

@@ -0,0 +1,6 @@
+using System.Collections.Generic;
+
+namespace ErsatzTV.Core.Search
+{
+    public record SearchPageMap(Dictionary<char, int> PageMap);
+}

ErsatzTV.Core/Search/SearchResult.cs

@@ -0,0 +1,10 @@
+using System.Collections.Generic;
+using LanguageExt;
+
+namespace ErsatzTV.Core.Search
+{
+    public record SearchResult(List<SearchItem> Items, int TotalCount)
+    {
+        public Option<SearchPageMap> PageMap { get; set; }
+    }
+}

ErsatzTV.Infrastructure/Data/Repositories/LibraryRepository.cs

@@ -84,6 +84,12 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 @"SELECT COUNT(*) FROM MediaItem WHERE LibraryPathId = @LibraryPathId",
                 new { LibraryPathId = libraryPathId });
 
+        public Task<List<int>> GetMediaIdsByLocalPath(int libraryPathId) =>
+            _dbConnection.QueryAsync<int>(
+                    @"SELECT Id FROM MediaItem WHERE LibraryPathId = @LibraryPathId",
+                    new { LibraryPathId = libraryPathId })
+                .Map(result => result.ToList());
+
         public async Task DeleteLocalPath(int libraryPathId)
         {
             await using TvContext context = _dbContextFactory.CreateDbContext();

ErsatzTV.Infrastructure/Data/Repositories/MediaSourceRepository.cs

@@ -112,8 +112,9 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
             int? id = await _dbConnection.QuerySingleAsync<int?>(
                 @"SELECT L.MediaSourceId FROM Library L
                 INNER JOIN PlexLibrary PL on L.Id = PL.Id
-                WHERE L.Id = @PlexLibraryId", new { PlexLibraryId = plexLibraryId });
-            
+                WHERE L.Id = @PlexLibraryId",
+                new { PlexLibraryId = plexLibraryId });
+
             await using TvContext context = _dbContextFactory.CreateDbContext();
             return await context.PlexMediaSources
                 .Include(p => p.Connections)
@@ -176,18 +177,18 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
         public async Task<Unit> DeleteAllPlex()
         {
             await using TvContext context = _dbContextFactory.CreateDbContext();
-            
+
             List<PlexMediaSource> allMediaSources = await context.PlexMediaSources.ToListAsync();
             context.PlexMediaSources.RemoveRange(allMediaSources);
-            
+
             List<PlexLibrary> allPlexLibraries = await context.PlexLibraries.ToListAsync();
             context.PlexLibraries.RemoveRange(allPlexLibraries);
-            
+
             await context.SaveChangesAsync();
             return Unit.Default;
         }
 
-        public async Task DisablePlexLibrarySync(List<int> libraryIds)
+        public async Task<List<int>> DisablePlexLibrarySync(List<int> libraryIds)
         {
             await _dbConnection.ExecuteAsync(
                 "UPDATE PlexLibrary SET ShouldSyncItems = 0 WHERE Id IN @ids",
@@ -197,6 +198,14 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 "UPDATE Library SET LastScan = null WHERE Id IN @ids",
                 new { ids = libraryIds });
 
+            List<int> movieIds = await _dbConnection.QueryAsync<int>(
+                @"SELECT m.Id FROM MediaItem m
+                INNER JOIN PlexMovie pm ON pm.Id = m.Id
+                INNER JOIN LibraryPath lp ON lp.Id = m.LibraryPathId
+                INNER JOIN Library l ON l.Id = lp.LibraryId
+                WHERE l.Id IN @ids",
+                new { ids = libraryIds }).Map(result => result.ToList());
+
             await _dbConnection.ExecuteAsync(
                 @"DELETE FROM MediaItem WHERE Id IN
                 (SELECT m.Id FROM MediaItem m
@@ -224,6 +233,14 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 WHERE l.Id IN @ids)",
                 new { ids = libraryIds });
 
+            List<int> showIds = await _dbConnection.QueryAsync<int>(
+                @"SELECT m.Id FROM MediaItem m
+                INNER JOIN PlexShow ps ON ps.Id = m.Id
+                INNER JOIN LibraryPath lp ON lp.Id = m.LibraryPathId
+                INNER JOIN Library l ON l.Id = lp.LibraryId
+                WHERE l.Id IN @ids",
+                new { ids = libraryIds }).Map(result => result.ToList());
+
             await _dbConnection.ExecuteAsync(
                 @"DELETE FROM MediaItem WHERE Id IN
                 (SELECT m.Id FROM MediaItem m
@@ -232,6 +249,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 INNER JOIN Library l ON l.Id = lp.LibraryId
                 WHERE l.Id IN @ids)",
                 new { ids = libraryIds });
+
+            return movieIds.Append(showIds).ToList();
         }
 
         public Task EnablePlexLibrarySync(IEnumerable<int> libraryIds) =>

ErsatzTV.Infrastructure/Data/Repositories/MetadataRepository.cs

@@ -19,9 +19,6 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
             _dbConnection = dbConnection;
         }
 
-        public Task<Unit> RemoveGenre(Genre genre) =>
-            _dbConnection.ExecuteAsync("DELETE FROM Genre WHERE Id = @GenreId", new { GenreId = genre.Id }).ToUnit();
-
         public async Task<bool> Update(Metadata metadata)
         {
             await using TvContext dbContext = _dbContextFactory.CreateDbContext();
@@ -53,7 +50,7 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
             return await dbContext.SaveChangesAsync() > 0;
         }
 
-        public Task<Unit> UpdatePlexStatistics(MediaVersion mediaVersion) =>
+        public Task<bool> UpdatePlexStatistics(MediaVersion mediaVersion) =>
             _dbConnection.ExecuteAsync(
                 @"UPDATE MediaVersion SET
                   SampleAspectRatio = @SampleAspectRatio,
@@ -66,7 +63,7 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                     mediaVersion.VideoScanKind,
                     mediaVersion.DateUpdated,
                     MediaVersionId = mediaVersion.Id
-                }).ToUnit();
+                }).Map(result => result > 0);
 
         public Task<Unit> UpdateArtworkPath(Artwork artwork) =>
             _dbConnection.ExecuteAsync(
@@ -111,5 +108,9 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 @"DELETE FROM Artwork WHERE ArtworkKind = @ArtworkKind AND (MovieMetadataId = @Id
                 OR ShowMetadataId = @Id OR SeasonMetadataId = @Id OR EpisodeMetadataId = @Id)",
                 new { ArtworkKind = artworkKind, metadata.Id }).ToUnit();
+
+        public Task<bool> RemoveGenre(Genre genre) =>
+            _dbConnection.ExecuteAsync("DELETE FROM Genre WHERE Id = @GenreId", new { GenreId = genre.Id })
+                .Map(result => result > 0);
     }
 }

ErsatzTV.Infrastructure/Data/Repositories/MovieRepository.cs

@@ -7,6 +7,7 @@ using Dapper;
 using ErsatzTV.Core;
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Metadata;
 using LanguageExt;
 using Microsoft.EntityFrameworkCore;
 using static LanguageExt.Prelude;
@@ -45,7 +46,7 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .Map(Optional);
         }
 
-        public async Task<Either<BaseError, Movie>> GetOrAdd(LibraryPath libraryPath, string path)
+        public async Task<Either<BaseError, MediaItemScanResult<Movie>>> GetOrAdd(LibraryPath libraryPath, string path)
         {
             await using TvContext dbContext = _dbContextFactory.CreateDbContext();
             Option<Movie> maybeExisting = await dbContext.Movies
@@ -56,17 +57,22 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .Include(i => i.MovieMetadata)
                 .ThenInclude(mm => mm.Tags)
                 .Include(i => i.LibraryPath)
+                .ThenInclude(lp => lp.Library)
                 .Include(i => i.MediaVersions)
                 .ThenInclude(mv => mv.MediaFiles)
                 .OrderBy(i => i.MediaVersions.First().MediaFiles.First().Path)
                 .SingleOrDefaultAsync(i => i.MediaVersions.First().MediaFiles.First().Path == path);
 
             return await maybeExisting.Match(
-                mediaItem => Right<BaseError, Movie>(mediaItem).AsTask(),
+                mediaItem =>
+                    Right<BaseError, MediaItemScanResult<Movie>>(
+                        new MediaItemScanResult<Movie>(mediaItem) { IsAdded = false }).AsTask(),
                 async () => await AddMovie(dbContext, libraryPath.Id, path));
         }
 
-        public async Task<Either<BaseError, PlexMovie>> GetOrAdd(PlexLibrary library, PlexMovie item)
+        public async Task<Either<BaseError, MediaItemScanResult<PlexMovie>>> GetOrAdd(
+            PlexLibrary library,
+            PlexMovie item)
         {
             await using TvContext context = _dbContextFactory.CreateDbContext();
             Option<PlexMovie> maybeExisting = await context.PlexMovies
@@ -74,14 +80,20 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .Include(i => i.MovieMetadata)
                 .ThenInclude(mm => mm.Genres)
                 .Include(i => i.MovieMetadata)
+                .ThenInclude(mm => mm.Tags)
+                .Include(i => i.MovieMetadata)
                 .ThenInclude(mm => mm.Artwork)
                 .Include(i => i.MediaVersions)
                 .ThenInclude(mv => mv.MediaFiles)
+                .Include(i => i.LibraryPath)
+                .ThenInclude(lp => lp.Library)
                 .OrderBy(i => i.Key)
                 .SingleOrDefaultAsync(i => i.Key == item.Key);
 
             return await maybeExisting.Match(
-                plexMovie => Right<BaseError, PlexMovie>(plexMovie).AsTask(),
+                plexMovie =>
+                    Right<BaseError, MediaItemScanResult<PlexMovie>>(
+                        new MediaItemScanResult<PlexMovie>(plexMovie) { IsAdded = true }).AsTask(),
                 async () => await AddPlexMovie(context, library, item));
         }
 
@@ -104,6 +116,17 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .ToListAsync();
         }
 
+        public async Task<List<MovieMetadata>> GetMoviesForCards(List<int> ids)
+        {
+            await using TvContext dbContext = _dbContextFactory.CreateDbContext();
+            return await dbContext.MovieMetadata
+                .AsNoTracking()
+                .Filter(mm => ids.Contains(mm.MovieId))
+                .Include(mm => mm.Artwork)
+                .OrderBy(mm => mm.SortTitle)
+                .ToListAsync();
+        }
+
         public Task<IEnumerable<string>> FindMoviePaths(LibraryPath libraryPath) =>
             _dbConnection.QueryAsync<string>(
                 @"SELECT MF.Path
@@ -114,17 +137,18 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 WHERE MI.LibraryPathId = @LibraryPathId",
                 new { LibraryPathId = libraryPath.Id });
 
-        public async Task<Unit> DeleteByPath(LibraryPath libraryPath, string path)
+        public async Task<List<int>> DeleteByPath(LibraryPath libraryPath, string path)
         {
             await using TvContext dbContext = _dbContextFactory.CreateDbContext();
-            IEnumerable<int> ids = await _dbConnection.QueryAsync<int>(
-                @"SELECT M.Id
+            List<int> ids = await _dbConnection.QueryAsync<int>(
+                    @"SELECT M.Id
                 FROM Movie M
                 INNER JOIN MediaItem MI on M.Id = MI.Id
                 INNER JOIN MediaVersion MV on M.Id = MV.MovieId
                 INNER JOIN MediaFile MF on MV.Id = MF.MediaVersionId
                 WHERE MI.LibraryPathId = @LibraryPathId AND MF.Path = @Path",
-                new { LibraryPathId = libraryPath.Id, Path = path });
+                    new { LibraryPathId = libraryPath.Id, Path = path })
+                .Map(result => result.ToList());
 
             foreach (int movieId in ids)
             {
@@ -132,26 +156,36 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 dbContext.Movies.Remove(movie);
             }
 
-            await dbContext.SaveChangesAsync();
-
-            return Unit.Default;
+            bool changed = await dbContext.SaveChangesAsync() > 0;
+            return changed ? ids : new List<int>();
         }
 
-        public Task<Unit> AddGenre(MovieMetadata metadata, Genre genre) =>
+        public Task<bool> AddGenre(MovieMetadata metadata, Genre genre) =>
             _dbConnection.ExecuteAsync(
                 "INSERT INTO Genre (Name, MovieMetadataId) VALUES (@Name, @MetadataId)",
-                new { genre.Name, MetadataId = metadata.Id }).ToUnit();
+                new { genre.Name, MetadataId = metadata.Id }).Map(result => result > 0);
 
-        public Task<Unit> RemoveMissingPlexMovies(PlexLibrary library, List<string> movieKeys) =>
-            _dbConnection.ExecuteAsync(
+        public async Task<List<int>> RemoveMissingPlexMovies(PlexLibrary library, List<string> movieKeys)
+        {
+            List<int> ids = await _dbConnection.QueryAsync<int>(
+                @"SELECT m.Id FROM MediaItem m
+                INNER JOIN PlexMovie pm ON pm.Id = m.Id
+                INNER JOIN LibraryPath lp ON lp.Id = m.LibraryPathId
+                WHERE lp.LibraryId = @LibraryId AND pm.Key not in @Keys",
+                new { LibraryId = library.Id, Keys = movieKeys }).Map(result => result.ToList());
+
+            await _dbConnection.ExecuteAsync(
                 @"DELETE FROM MediaItem WHERE Id IN
                 (SELECT m.Id FROM MediaItem m
                 INNER JOIN PlexMovie pm ON pm.Id = m.Id
                 INNER JOIN LibraryPath lp ON lp.Id = m.LibraryPathId
                 WHERE lp.LibraryId = @LibraryId AND pm.Key not in @Keys)",
-                new { LibraryId = library.Id, Keys = movieKeys }).ToUnit();
+                new { LibraryId = library.Id, Keys = movieKeys });
+
+            return ids;
+        }
 
-        private static async Task<Either<BaseError, Movie>> AddMovie(
+        private static async Task<Either<BaseError, MediaItemScanResult<Movie>>> AddMovie(
             TvContext dbContext,
             int libraryPathId,
             string path)
@@ -175,7 +209,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 await dbContext.Movies.AddAsync(movie);
                 await dbContext.SaveChangesAsync();
                 await dbContext.Entry(movie).Reference(m => m.LibraryPath).LoadAsync();
-                return movie;
+                await dbContext.Entry(movie.LibraryPath).Reference(lp => lp.Library).LoadAsync();
+                return new MediaItemScanResult<Movie>(movie) { IsAdded = true };
             }
             catch (Exception ex)
             {
@@ -183,7 +218,7 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
             }
         }
 
-        private async Task<Either<BaseError, PlexMovie>> AddPlexMovie(
+        private async Task<Either<BaseError, MediaItemScanResult<PlexMovie>>> AddPlexMovie(
             TvContext context,
             PlexLibrary library,
             PlexMovie item)
@@ -195,7 +230,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 await context.PlexMovies.AddAsync(item);
                 await context.SaveChangesAsync();
                 await context.Entry(item).Reference(i => i.LibraryPath).LoadAsync();
-                return item;
+                await context.Entry(item.LibraryPath).Reference(lp => lp.Library).LoadAsync();
+                return new MediaItemScanResult<PlexMovie>(item) { IsAdded = true };
             }
             catch (Exception ex)
             {

ErsatzTV.Infrastructure/Data/Repositories/SearchRepository.cs

@@ -21,6 +21,24 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
             _dbConnection = dbConnection;
         }
 
+        public async Task<List<MediaItem>> GetItemsToIndex()
+        {
+            await using TvContext dbContext = _dbContextFactory.CreateDbContext();
+            return await dbContext.MediaItems
+                .AsNoTracking()
+                .Include(mi => mi.LibraryPath)
+                .ThenInclude(lp => lp.Library)
+                .Include(mi => (mi as Movie).MovieMetadata)
+                .ThenInclude(mm => mm.Genres)
+                .Include(mi => (mi as Movie).MovieMetadata)
+                .ThenInclude(mm => mm.Tags)
+                .Include(mi => (mi as Show).ShowMetadata)
+                .ThenInclude(mm => mm.Genres)
+                .Include(mi => (mi as Show).ShowMetadata)
+                .ThenInclude(mm => mm.Tags)
+                .ToListAsync();
+        }
+
         public async Task<List<MediaItem>> SearchMediaItemsByTitle(string query)
         {
             List<int> ids = await _dbConnection.QueryAsync<int>(

ErsatzTV.Infrastructure/Data/Repositories/TelevisionRepository.cs

@@ -7,6 +7,7 @@ using Dapper;
 using ErsatzTV.Core;
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Metadata;
 using LanguageExt;
 using Microsoft.EntityFrameworkCore;
 using static LanguageExt.Prelude;
@@ -82,6 +83,17 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .ToListAsync();
         }
 
+        public async Task<List<ShowMetadata>> GetShowsForCards(List<int> ids)
+        {
+            await using TvContext dbContext = _dbContextFactory.CreateDbContext();
+            return await dbContext.ShowMetadata
+                .AsNoTracking()
+                .Filter(sm => ids.Contains(sm.ShowId))
+                .Include(sm => sm.Artwork)
+                .OrderBy(sm => sm.SortTitle)
+                .ToListAsync();
+        }
+
         public async Task<List<Season>> GetAllSeasons()
         {
             await using TvContext dbContext = _dbContextFactory.CreateDbContext();
@@ -201,6 +213,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                         .ThenInclude(sm => sm.Genres)
                         .Include(s => s.ShowMetadata)
                         .ThenInclude(sm => sm.Tags)
+                        .Include(s => s.LibraryPath)
+                        .ThenInclude(lp => lp.Library)
                         .OrderBy(s => s.Id)
                         .SingleOrDefaultAsync(s => s.Id == id)
                         .Map(Optional);
@@ -208,7 +222,10 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 () => Option<Show>.None.AsTask());
         }
 
-        public async Task<Either<BaseError, Show>> AddShow(int libraryPathId, string showFolder, ShowMetadata metadata)
+        public async Task<Either<BaseError, MediaItemScanResult<Show>>> AddShow(
+            int libraryPathId,
+            string showFolder,
+            ShowMetadata metadata)
         {
             await using TvContext dbContext = _dbContextFactory.CreateDbContext();
 
@@ -226,8 +243,10 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
 
                 await dbContext.Shows.AddAsync(show);
                 await dbContext.SaveChangesAsync();
+                await dbContext.Entry(show).Reference(s => s.LibraryPath).LoadAsync();
+                await dbContext.Entry(show.LibraryPath).Reference(lp => lp.Library).LoadAsync();
 
-                return show;
+                return new MediaItemScanResult<Show>(show) { IsAdded = true };
             }
             catch (Exception ex)
             {
@@ -314,19 +333,22 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
             return Unit.Default;
         }
 
-        public async Task<Unit> DeleteEmptyShows(LibraryPath libraryPath)
+        public async Task<List<int>> DeleteEmptyShows(LibraryPath libraryPath)
         {
             await using TvContext dbContext = _dbContextFactory.CreateDbContext();
             List<Show> shows = await dbContext.Shows
                 .Filter(s => s.LibraryPathId == libraryPath.Id)
                 .Filter(s => s.Seasons.Count == 0)
                 .ToListAsync();
+            var ids = shows.Map(s => s.Id).ToList();
             dbContext.Shows.RemoveRange(shows);
             await dbContext.SaveChangesAsync();
-            return Unit.Default;
+            return ids;
         }
 
-        public async Task<Either<BaseError, PlexShow>> GetOrAddPlexShow(PlexLibrary library, PlexShow item)
+        public async Task<Either<BaseError, MediaItemScanResult<PlexShow>>> GetOrAddPlexShow(
+            PlexLibrary library,
+            PlexShow item)
         {
             await using TvContext dbContext = _dbContextFactory.CreateDbContext();
             Option<PlexShow> maybeExisting = await dbContext.PlexShows
@@ -334,12 +356,17 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .Include(i => i.ShowMetadata)
                 .ThenInclude(mm => mm.Genres)
                 .Include(i => i.ShowMetadata)
+                .ThenInclude(mm => mm.Tags)
+                .Include(i => i.ShowMetadata)
                 .ThenInclude(mm => mm.Artwork)
+                .Include(i => i.LibraryPath)
+                .ThenInclude(lp => lp.Library)
                 .OrderBy(i => i.Key)
                 .SingleOrDefaultAsync(i => i.Key == item.Key);
 
             return await maybeExisting.Match(
-                plexShow => Right<BaseError, PlexShow>(plexShow).AsTask(),
+                plexShow => Right<BaseError, MediaItemScanResult<PlexShow>>(
+                    new MediaItemScanResult<PlexShow>(plexShow) { IsAdded = true }).AsTask(),
                 async () => await AddPlexShow(dbContext, library, item));
         }
 
@@ -375,20 +402,6 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 async () => await AddPlexEpisode(dbContext, library, item));
         }
 
-        public Task<Unit> AddGenre(ShowMetadata metadata, Genre genre) =>
-            _dbConnection.ExecuteAsync(
-                "INSERT INTO Genre (Name, SeasonMetadataId) VALUES (@Name, @MetadataId)",
-                new { genre.Name, MetadataId = metadata.Id }).ToUnit();
-
-        public Task<Unit> RemoveMissingPlexShows(PlexLibrary library, List<string> showKeys) =>
-            _dbConnection.ExecuteAsync(
-                @"DELETE FROM MediaItem WHERE Id IN
-                (SELECT m.Id FROM MediaItem m
-                INNER JOIN PlexShow ps ON ps.Id = m.Id
-                INNER JOIN LibraryPath lp ON lp.Id = m.LibraryPathId
-                WHERE lp.LibraryId = @LibraryId AND ps.Key not in @Keys)",
-                new { LibraryId = library.Id, Keys = showKeys }).ToUnit();
-
         public Task<Unit> RemoveMissingPlexSeasons(string showKey, List<string> seasonKeys) =>
             _dbConnection.ExecuteAsync(
                 @"DELETE FROM MediaItem WHERE Id IN
@@ -414,7 +427,7 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
             episode.EpisodeNumber = episodeNumber;
             await _dbConnection.ExecuteAsync(
                 @"UPDATE Episode SET EpisodeNumber = @EpisodeNumber WHERE Id = @Id",
-                new { EpisodeNumber = episodeNumber, Id = episode.Id });
+                new { EpisodeNumber = episodeNumber, episode.Id });
             return Unit.Default;
         }
 
@@ -449,6 +462,31 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .ToListAsync();
         }
 
+        public Task<bool> AddGenre(ShowMetadata metadata, Genre genre) =>
+            _dbConnection.ExecuteAsync(
+                "INSERT INTO Genre (Name, SeasonMetadataId) VALUES (@Name, @MetadataId)",
+                new { genre.Name, MetadataId = metadata.Id }).Map(result => result > 0);
+
+        public async Task<List<int>> RemoveMissingPlexShows(PlexLibrary library, List<string> showKeys)
+        {
+            List<int> ids = await _dbConnection.QueryAsync<int>(
+                @"SELECT m.Id FROM MediaItem m
+                INNER JOIN PlexShow ps ON ps.Id = m.Id
+                INNER JOIN LibraryPath lp ON lp.Id = m.LibraryPathId
+                WHERE lp.LibraryId = @LibraryId AND ps.Key not in @Keys",
+                new { LibraryId = library.Id, Keys = showKeys }).Map(result => result.ToList());
+
+            await _dbConnection.ExecuteAsync(
+                @"DELETE FROM MediaItem WHERE Id IN
+                (SELECT m.Id FROM MediaItem m
+                INNER JOIN PlexShow ps ON ps.Id = m.Id
+                INNER JOIN LibraryPath lp ON lp.Id = m.LibraryPathId
+                WHERE lp.LibraryId = @LibraryId AND ps.Key not in @Keys)",
+                new { LibraryId = library.Id, Keys = showKeys });
+
+            return ids;
+        }
+
         private static async Task<Either<BaseError, Season>> AddSeason(
             TvContext dbContext,
             Show show,
@@ -519,7 +557,7 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
             }
         }
 
-        private static async Task<Either<BaseError, PlexShow>> AddPlexShow(
+        private static async Task<Either<BaseError, MediaItemScanResult<PlexShow>>> AddPlexShow(
             TvContext dbContext,
             PlexLibrary library,
             PlexShow item)
@@ -531,7 +569,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 await dbContext.PlexShows.AddAsync(item);
                 await dbContext.SaveChangesAsync();
                 await dbContext.Entry(item).Reference(i => i.LibraryPath).LoadAsync();
-                return item;
+                await dbContext.Entry(item.LibraryPath).Reference(lp => lp.Library).LoadAsync();
+                return new MediaItemScanResult<PlexShow>(item) { IsAdded = true };
             }
             catch (Exception ex)
             {

ErsatzTV.Infrastructure/ErsatzTV.Infrastructure.csproj

@@ -7,6 +7,9 @@
 
     <ItemGroup>
       <PackageReference Include="Dapper" Version="2.0.78" />
+      <PackageReference Include="Lucene.Net" Version="4.8.0-beta00013" />
+      <PackageReference Include="Lucene.Net.Analysis.Common" Version="4.8.0-beta00013" />
+      <PackageReference Include="Lucene.Net.QueryParser" Version="4.8.0-beta00013" />
       <PackageReference Include="Microsoft.EntityFrameworkCore" Version="5.0.4" />
       <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="5.0.4">
         <PrivateAssets>all</PrivateAssets>

ErsatzTV.Infrastructure/Plex/PlexServerApiClient.cs

@@ -176,7 +176,8 @@ namespace ErsatzTV.Infrastructure.Plex
                 Tagline = response.Tagline,
                 DateAdded = dateAdded,
                 DateUpdated = lastWriteTime,
-                Genres = Optional(response.Genre).Flatten().Map(g => new Genre { Name = g.Tag }).ToList()
+                Genres = Optional(response.Genre).Flatten().Map(g => new Genre { Name = g.Tag }).ToList(),
+                Tags = new List<Tag>()
             };
 
             if (DateTime.TryParse(response.OriginallyAvailableAt, out DateTime releaseDate))
@@ -277,7 +278,8 @@ namespace ErsatzTV.Infrastructure.Plex
                 Tagline = response.Tagline,
                 DateAdded = dateAdded,
                 DateUpdated = lastWriteTime,
-                Genres = Optional(response.Genre).Flatten().Map(g => new Genre { Name = g.Tag }).ToList()
+                Genres = Optional(response.Genre).Flatten().Map(g => new Genre { Name = g.Tag }).ToList(),
+                Tags = new List<Tag>()
             };
 
             if (DateTime.TryParse(response.OriginallyAvailableAt, out DateTime releaseDate))

ErsatzTV.Infrastructure/Search/SearchIndex.cs

@@ -0,0 +1,287 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using ErsatzTV.Core;
+using ErsatzTV.Core.Domain;
+using ErsatzTV.Core.Interfaces.Metadata;
+using ErsatzTV.Core.Interfaces.Search;
+using ErsatzTV.Core.Search;
+using LanguageExt;
+using LanguageExt.UnsafeValueAccess;
+using Lucene.Net.Analysis.Standard;
+using Lucene.Net.Documents;
+using Lucene.Net.Index;
+using Lucene.Net.QueryParsers.Classic;
+using Lucene.Net.Sandbox.Queries;
+using Lucene.Net.Search;
+using Lucene.Net.Store;
+using Lucene.Net.Util;
+using Query = Lucene.Net.Search.Query;
+
+namespace ErsatzTV.Infrastructure.Search
+{
+    public class SearchIndex : ISearchIndex
+    {
+        private const LuceneVersion AppLuceneVersion = LuceneVersion.LUCENE_48;
+
+        private const string IdField = "id";
+        private const string TypeField = "type";
+        private const string TitleField = "title";
+        private const string SortTitleField = "sort_title";
+        private const string GenreField = "genre";
+        private const string TagField = "tag";
+        private const string PlotField = "plot";
+        private const string LibraryNameField = "library_name";
+        private const string TitleAndYearField = "title_and_year";
+        private const string JumpLetterField = "jump_letter";
+
+        private const string MovieType = "movie";
+        private const string ShowType = "show";
+
+        private readonly ILocalFileSystem _localFileSystem;
+
+        private readonly string[] _searchFields = { TitleField, GenreField, TagField };
+
+        public SearchIndex(ILocalFileSystem localFileSystem) => _localFileSystem = localFileSystem;
+
+        public int Version => 1;
+
+        public Task<bool> Initialize()
+        {
+            _localFileSystem.EnsureFolderExists(FileSystemLayout.SearchIndexFolder);
+            return Task.FromResult(true);
+        }
+
+        public async Task<Unit> Rebuild(List<MediaItem> items)
+        {
+            await Initialize();
+
+            using var dir = FSDirectory.Open(FileSystemLayout.SearchIndexFolder);
+            var analyzer = new StandardAnalyzer(AppLuceneVersion);
+            var indexConfig = new IndexWriterConfig(AppLuceneVersion, analyzer) { OpenMode = OpenMode.CREATE };
+            using var writer = new IndexWriter(dir, indexConfig);
+
+            UpdateMovies(items.OfType<Movie>(), writer);
+            UpdateShows(items.OfType<Show>(), writer);
+
+            return Unit.Default;
+        }
+
+        public Task<Unit> AddItems(List<MediaItem> items) => UpdateItems(items);
+
+        public Task<Unit> UpdateItems(List<MediaItem> items)
+        {
+            using var dir = FSDirectory.Open(FileSystemLayout.SearchIndexFolder);
+            var analyzer = new StandardAnalyzer(AppLuceneVersion);
+            var indexConfig = new IndexWriterConfig(AppLuceneVersion, analyzer) { OpenMode = OpenMode.APPEND };
+            using var writer = new IndexWriter(dir, indexConfig);
+
+            UpdateMovies(items.OfType<Movie>(), writer);
+            UpdateShows(items.OfType<Show>(), writer);
+
+            return Task.FromResult(Unit.Default);
+        }
+
+        public Task<Unit> RemoveItems(List<int> ids)
+        {
+            using var dir = FSDirectory.Open(FileSystemLayout.SearchIndexFolder);
+            var analyzer = new StandardAnalyzer(AppLuceneVersion);
+            var indexConfig = new IndexWriterConfig(AppLuceneVersion, analyzer) { OpenMode = OpenMode.APPEND };
+            using var writer = new IndexWriter(dir, indexConfig);
+
+            foreach (int id in ids)
+            {
+                writer.DeleteDocuments(new Term(IdField, id.ToString()));
+            }
+
+            return Task.FromResult(Unit.Default);
+        }
+
+        public Task<SearchResult> Search(string searchQuery, int skip, int limit, string searchField = "")
+        {
+            if (string.IsNullOrWhiteSpace(searchQuery.Replace("*", string.Empty).Replace("?", string.Empty)))
+            {
+                return new SearchResult(new List<SearchItem>(), 0).AsTask();
+            }
+
+            using var dir = FSDirectory.Open(FileSystemLayout.SearchIndexFolder);
+            using var reader = DirectoryReader.Open(dir);
+            var searcher = new IndexSearcher(reader);
+            int hitsLimit = skip + limit;
+            using var analyzer = new StandardAnalyzer(AppLuceneVersion);
+            QueryParser parser = !string.IsNullOrWhiteSpace(searchField)
+                ? new QueryParser(AppLuceneVersion, searchField, analyzer)
+                : new MultiFieldQueryParser(AppLuceneVersion, _searchFields, analyzer);
+            Query query = ParseQuery(searchQuery, parser);
+            var filter = new DuplicateFilter(TitleAndYearField);
+            var sort = new Sort(new SortField(SortTitleField, SortFieldType.STRING));
+            TopFieldDocs topDocs = searcher.Search(query, filter, hitsLimit, sort, true, true);
+            IEnumerable<ScoreDoc> selectedHits = topDocs.ScoreDocs.Skip(skip).Take(limit);
+
+            var searchResult = new SearchResult(
+                selectedHits.Map(d => ProjectToSearchItem(searcher.Doc(d.Doc))).ToList(),
+                topDocs.TotalHits);
+
+            searchResult.PageMap = GetSearchPageMap(searcher, query, filter, sort, limit);
+
+            return searchResult.AsTask();
+        }
+
+        private static Option<SearchPageMap> GetSearchPageMap(
+            IndexSearcher searcher,
+            Query query,
+            DuplicateFilter filter,
+            Sort sort,
+            int limit)
+        {
+            ScoreDoc[] allDocs = searcher.Search(query, filter, int.MaxValue, sort, true, true).ScoreDocs;
+            var letters = new List<char>
+            {
+                '#', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
+                'u', 'v', 'w', 'x', 'y', 'z'
+            };
+            var map = letters.ToDictionary(letter => letter, _ => 0);
+
+            var current = 0;
+            var page = 0;
+            while (current < allDocs.Length)
+            {
+                // walk up by page size (limit)
+                page++;
+                current += limit;
+                if (current > allDocs.Length)
+                {
+                    current = allDocs.Length;
+                }
+
+                char jumpLetter = searcher.Doc(allDocs[current - 1].Doc).Get(JumpLetterField).Head();
+                foreach (char letter in letters.Where(l => letters.IndexOf(l) <= letters.IndexOf(jumpLetter)))
+                {
+                    if (map[letter] == 0)
+                    {
+                        map[letter] = page;
+                    }
+                }
+            }
+
+            int max = map.Values.Max();
+            foreach (char letter in letters.Where(letter => map[letter] == 0))
+            {
+                map[letter] = max;
+            }
+
+            return new SearchPageMap(map);
+        }
+
+        private static void UpdateMovies(IEnumerable<Movie> movies, IndexWriter writer)
+        {
+            foreach (Movie movie in movies)
+            {
+                Option<MovieMetadata> maybeMetadata = movie.MovieMetadata.HeadOrNone();
+                if (maybeMetadata.IsSome)
+                {
+                    MovieMetadata metadata = maybeMetadata.ValueUnsafe();
+
+                    var doc = new Document
+                    {
+                        new StringField(IdField, movie.Id.ToString(), Field.Store.YES),
+                        new StringField(TypeField, MovieType, Field.Store.NO),
+                        new TextField(TitleField, metadata.Title, Field.Store.NO),
+                        new StringField(SortTitleField, metadata.SortTitle.ToLowerInvariant(), Field.Store.NO),
+                        new TextField(LibraryNameField, movie.LibraryPath.Library.Name, Field.Store.NO),
+                        new StringField(TitleAndYearField, GetTitleAndYear(metadata), Field.Store.NO),
+                        new StringField(JumpLetterField, GetJumpLetter(metadata), Field.Store.YES)
+                    };
+
+                    if (!string.IsNullOrWhiteSpace(metadata.Plot))
+                    {
+                        doc.Add(new TextField(PlotField, metadata.Plot ?? string.Empty, Field.Store.NO));
+                    }
+
+                    foreach (Genre genre in metadata.Genres)
+                    {
+                        doc.Add(new TextField(GenreField, genre.Name, Field.Store.NO));
+                    }
+
+                    foreach (Tag tag in metadata.Tags)
+                    {
+                        doc.Add(new TextField(TagField, tag.Name, Field.Store.NO));
+                    }
+
+                    writer.UpdateDocument(new Term(IdField, movie.Id.ToString()), doc);
+                }
+            }
+        }
+
+        private static void UpdateShows(IEnumerable<Show> shows, IndexWriter writer)
+        {
+            foreach (Show show in shows)
+            {
+                Option<ShowMetadata> maybeMetadata = show.ShowMetadata.HeadOrNone();
+                if (maybeMetadata.IsSome)
+                {
+                    ShowMetadata metadata = maybeMetadata.ValueUnsafe();
+
+                    var doc = new Document
+                    {
+                        new StringField(IdField, show.Id.ToString(), Field.Store.YES),
+                        new StringField(TypeField, ShowType, Field.Store.NO),
+                        new TextField(TitleField, metadata.Title, Field.Store.NO),
+                        new StringField(SortTitleField, metadata.SortTitle.ToLowerInvariant(), Field.Store.NO),
+                        new TextField(LibraryNameField, show.LibraryPath.Library.Name, Field.Store.NO),
+                        new StringField(TitleAndYearField, GetTitleAndYear(metadata), Field.Store.NO),
+                        new StringField(JumpLetterField, GetJumpLetter(metadata), Field.Store.YES)
+                    };
+
+                    if (!string.IsNullOrWhiteSpace(metadata.Plot))
+                    {
+                        doc.Add(new TextField(PlotField, metadata.Plot ?? string.Empty, Field.Store.NO));
+                    }
+
+                    foreach (Genre genre in metadata.Genres)
+                    {
+                        doc.Add(new TextField(GenreField, genre.Name, Field.Store.NO));
+                    }
+
+                    foreach (Tag tag in metadata.Tags)
+                    {
+                        doc.Add(new TextField(TagField, tag.Name, Field.Store.NO));
+                    }
+
+                    writer.UpdateDocument(new Term(IdField, show.Id.ToString()), doc);
+                }
+            }
+        }
+
+        private SearchItem ProjectToSearchItem(Document doc) => new(Convert.ToInt32(doc.Get(IdField)));
+
+        private Query ParseQuery(string searchQuery, QueryParser parser)
+        {
+            Query query;
+            try
+            {
+                query = parser.Parse(searchQuery.Trim());
+            }
+            catch (ParseException)
+            {
+                query = parser.Parse(QueryParserBase.Escape(searchQuery.Trim()));
+            }
+
+            return query;
+        }
+
+        private static string GetTitleAndYear(Metadata metadata) =>
+            $"{metadata.Title}_{metadata.Year}";
+
+        private static string GetJumpLetter(Metadata metadata)
+        {
+            char c = metadata.SortTitle.ToLowerInvariant().Head();
+            return c switch
+            {
+                (>= 'a' and <= 'z') => c.ToString(),
+                _ => "#"
+            };
+        }
+    }
+}

ErsatzTV/Pages/ChannelEditor.razor

@@ -1,11 +1,11 @@
 @page "/channels/{Id:int?}"
 @page "/channels/add"
+@using static LanguageExt.Prelude
 @using ErsatzTV.Application.FFmpegProfiles
 @using ErsatzTV.Application.FFmpegProfiles.Queries
 @using ErsatzTV.Application.Images.Commands
 @using ErsatzTV.Application.Channels
 @using ErsatzTV.Application.Channels.Queries
-@using static LanguageExt.Prelude
 @inject NavigationManager NavigationManager
 @inject ILogger<ChannelEditor> Logger
 @inject ISnackbar Snackbar

ErsatzTV/Pages/FFmpeg.razor

@@ -33,7 +33,7 @@
                     <MudSwitch T="bool"
                                Label="Save troubleshooting reports to disk"
                                Color="Color.Primary"
-                               @bind-Checked="@_ffmpegSettings.SaveReports" />
+                               @bind-Checked="@_ffmpegSettings.SaveReports"/>
                 </MudElement>
             </MudForm>
         </MudCardContent>

ErsatzTV/Pages/Movie.razor

@@ -49,7 +49,7 @@
         <div class="mb-2">
             @foreach (string genre in _movie.Genres.OrderBy(g => g))
             {
-                <MudFab Color="Color.Info" Size="Size.Small" Label="@genre" Class="mr-2 mb-2" Link="@($"/search?query=genre%3a{genre}")"/>
+                <MudFab Color="Color.Info" Size="Size.Small" Label="@genre" Class="mr-2 mb-2" Link="@($"/search?query=genre%3a%22{genre.ToLowerInvariant()}%22")"/>
             }
         </div>
     }
@@ -59,7 +59,7 @@
         <div>
             @foreach (string tag in _movie.Tags.OrderBy(t => t))
             {
-                <MudFab Color="Color.Info" Size="Size.Small" Label="@tag" Class="mr-2 mb-2" Link="@($"/search?query=tag%3a{tag}")"/>
+                <MudFab Color="Color.Info" Size="Size.Small" Label="@tag" Class="mr-2 mb-2" Link="@($"/search?query=tag%3a%22{tag.ToLowerInvariant()}%22")"/>
             }
         </div>
     }

ErsatzTV/Pages/MovieList.razor

@@ -1,9 +1,12 @@
 @page "/media/movies"
 @page "/media/movies/page/{PageNumber:int}"
+@using LanguageExt.UnsafeValueAccess
+@using Microsoft.AspNetCore.WebUtilities
+@using Microsoft.Extensions.Primitives
 @using ErsatzTV.Application.MediaCards
-@using ErsatzTV.Application.MediaCards.Queries
 @using ErsatzTV.Application.MediaCollections
 @using ErsatzTV.Application.MediaCollections.Commands
+@using ErsatzTV.Application.Search.Queries
 @using Unit = LanguageExt.Unit
 @inherits MultiSelectBase<MovieList>
 @inject NavigationManager NavigationManager
@@ -32,7 +35,8 @@
         }
         else
         {
-            <div style="margin-left: auto; margin-right: auto; max-width: 300px;">
+            <MudText Style="margin-bottom: auto; margin-top: auto; width: 33%">@_query</MudText>
+            <div style="max-width: 300px; width: 33%;">
                 <MudPaper Style="align-items: center; display: flex; justify-content: center;">
                     <MudIconButton Icon="@Icons.Material.Outlined.ChevronLeft"
                                    OnClick="@PrevPage"
@@ -63,6 +67,12 @@
         }
     </MudContainer>
 </MudContainer>
+@if (_data.PageMap.IsSome)
+{
+    <LetterBar PageMap="@_data.PageMap.ValueUnsafe()"
+               BaseUri="/media/movies"
+               Query="@_query"/>
+}
 
 @code {
     private static int PageSize => 100;
@@ -71,6 +81,7 @@
     public int PageNumber { get; set; }
 
     private MovieCardResultsViewModel _data;
+    private string _query;
 
     protected override Task OnParametersSetAsync()
     {
@@ -79,15 +90,40 @@
             PageNumber = 1;
         }
 
+        string query = new Uri(NavigationManager.Uri).Query;
+        if (QueryHelpers.ParseQuery(query).TryGetValue("query", out StringValues value))
+        {
+            _query = value;
+        }
+
         return RefreshData();
     }
 
-    protected override async Task RefreshData() =>
-        _data = await Mediator.Send(new GetMovieCards(PageNumber, PageSize));
+    protected override async Task RefreshData()
+    {
+        string searchQuery = string.IsNullOrWhiteSpace(_query) ? "type:movie" : $"type:movie AND ({_query})";
+        _data = await Mediator.Send(new QuerySearchIndexMovies(searchQuery, PageNumber, PageSize));
+    }
 
-    private void PrevPage() => NavigationManager.NavigateTo($"/media/movies/page/{PageNumber - 1}");
+    private void PrevPage()
+    {
+        var uri = $"/media/movies/page/{PageNumber - 1}";
+        if (!string.IsNullOrWhiteSpace(_query))
+        {
+            uri = QueryHelpers.AddQueryString(uri, "query", _query);
+        }
+        NavigationManager.NavigateTo(uri);
+    }
 
-    private void NextPage() => NavigationManager.NavigateTo($"/media/movies/page/{PageNumber + 1}");
+    private void NextPage()
+    {
+        var uri = $"/media/movies/page/{PageNumber + 1}";
+        if (!string.IsNullOrWhiteSpace(_query))
+        {
+            uri = QueryHelpers.AddQueryString(uri, "query", _query);
+        }
+        NavigationManager.NavigateTo(uri);
+    }
 
     private void SelectClicked(MediaCardViewModel card, MouseEventArgs e)
     {

ErsatzTV/Pages/ScheduleItemsEditor.razor

@@ -84,7 +84,7 @@
     @if (_selectedItem is not null)
     {
         <div style="display: flex; flex-direction: row;" class="mt-6">
-            <div style="max-width: 400px; flex-grow: 1">
+            <div style="flex-grow: 1; max-width: 400px;">
                 <EditForm Model="_selectedItem">
                     <FluentValidator/>
                     <MudCard>

ErsatzTV/Pages/Search.razor

@@ -1,8 +1,8 @@
 @page "/search"
 @using ErsatzTV.Application.MediaCards
-@using ErsatzTV.Application.MediaCards.Queries
 @using ErsatzTV.Application.MediaCollections
 @using ErsatzTV.Application.MediaCollections.Commands
+@using ErsatzTV.Application.Search.Queries
 @using Microsoft.AspNetCore.WebUtilities
 @using Microsoft.Extensions.Primitives
 @using Unit = LanguageExt.Unit
@@ -34,23 +34,43 @@
         else
         {
             <MudText>@_query</MudText>
-            <MudLink Class="ml-4" Href="@(NavigationManager.Uri.Split("#").Head() + "#movies")">@_data.MovieCards.Count Movies</MudLink>
-            <MudLink Class="ml-4" Href="@(NavigationManager.Uri.Split("#").Head() + "#shows")">@_data.ShowCards.Count Shows</MudLink>
+            if (_movies.Count > 0)
+            {
+                <MudLink Class="ml-4" Href="@(NavigationManager.Uri.Split("#").Head() + "#movies")">@_movies.Count Movies</MudLink>
+            }
+            else
+            {
+                <MudText Class="ml-4">0 Movies</MudText>
+            }
+
+            if (_shows.Count > 0)
+            {
+                <MudLink Class="ml-4" Href="@(NavigationManager.Uri.Split("#").Head() + "#shows")">@_shows.Count Shows</MudLink>
+            }
+            else
+            {
+                <MudText Class="ml-4">0 Shows</MudText>
+            }
         }
     </div>
 </MudPaper>
 <MudContainer MaxWidth="MaxWidth.ExtraLarge" Style="margin-top: 96px">
-    @if (_data?.MovieCards.Any() == true)
+    @if (_movies.Count > 0)
     {
-        <MudText GutterBottom="true"
-                 Typo="Typo.h4"
-                 Style="scroll-margin-top: 160px"
-                 UserAttributes="@(new Dictionary<string, object> { { "id", "movies" } })">
-            Movies
-        </MudText>
+        <div class="mb-4" style="align-items: baseline; display: flex; flex-direction: row;">
+            <MudText Typo="Typo.h4"
+                     Style="scroll-margin-top: 160px"
+                     UserAttributes="@(new Dictionary<string, object> { { "id", "movies" } })">
+                Movies
+            </MudText>
+            @if (_movies.Count > 50)
+            {
+                <MudLink Href="@GetMoviesLink()" Class="ml-4">See All >></MudLink>
+            }
+        </div>
 
         <MudContainer MaxWidth="MaxWidth.False" Class="media-card-grid">
-            @foreach (MovieCardViewModel card in _data.MovieCards.OrderBy(m => m.SortTitle))
+            @foreach (MovieCardViewModel card in _movies.Cards.OrderBy(m => m.SortTitle))
             {
                 <MediaCard Data="@card"
                            Link="@($"/media/movies/{card.MovieId}")"
@@ -62,17 +82,22 @@
         </MudContainer>
     }
 
-    @if (_data?.ShowCards.Any() == true)
+    @if (_shows.Count > 0)
     {
-        <MudText GutterBottom="true"
-                 Typo="Typo.h4"
-                 Style="scroll-margin-top: 160px"
-                 UserAttributes="@(new Dictionary<string, object> { { "id", "shows" } })">
-            Shows
-        </MudText>
+        <div class="mb-4" style="align-items: baseline; display: flex; flex-direction: row;">
+            <MudText Typo="Typo.h4"
+                     Style="scroll-margin-top: 160px"
+                     UserAttributes="@(new Dictionary<string, object> { { "id", "shows" } })">
+                Shows
+            </MudText>
+            @if (_shows.Count > 50)
+            {
+                <MudLink Href="@GetShowsLink()" Class="ml-4">See All >></MudLink>
+            }
+        </div>
 
         <MudContainer MaxWidth="MaxWidth.False" Class="media-card-grid">
-            @foreach (TelevisionShowCardViewModel card in _data.ShowCards.OrderBy(s => s.SortTitle))
+            @foreach (TelevisionShowCardViewModel card in _shows.Cards.OrderBy(s => s.SortTitle))
             {
                 <MediaCard Data="@card"
                            Link="@($"/media/tv/shows/{card.TelevisionShowId}")"
@@ -87,7 +112,8 @@
 
 @code {
     private string _query;
-    private SearchCardResultsViewModel _data;
+    private MovieCardResultsViewModel _movies;
+    private TelevisionShowCardResultsViewModel _shows;
 
     protected override async Task OnInitializedAsync()
     {
@@ -96,8 +122,9 @@
         if (QueryHelpers.ParseQuery(query).TryGetValue("query", out StringValues value))
         {
             _query = value;
-            Either<BaseError, SearchCardResultsViewModel> maybeResults = await Mediator.Send(new GetSearchCards(_query));
-            maybeResults.IfRight(results => _data = results);
+
+            _movies = await Mediator.Send(new QuerySearchIndexMovies($"type:movie AND ({_query})", 1, 50));
+            _shows = await Mediator.Send(new QuerySearchIndexShows($"type:show AND ({_query})", 1, 50));
         }
     }
 
@@ -105,8 +132,8 @@
     {
         List<MediaCardViewModel> GetSortedItems()
         {
-            return _data.MovieCards.OrderBy(m => m.SortTitle)
-                .Append<MediaCardViewModel>(_data.ShowCards.OrderBy(s => s.SortTitle))
+            return _movies.Cards.OrderBy(m => m.SortTitle)
+                .Append<MediaCardViewModel>(_shows.Cards.OrderBy(s => s.SortTitle))
                 .ToList();
         }
 
@@ -158,4 +185,24 @@
         }
     }
 
+    private string GetMoviesLink()
+    {
+        var uri = "/media/movies";
+        if (!string.IsNullOrWhiteSpace(_query))
+        {
+            uri = QueryHelpers.AddQueryString(uri, "query", _query);
+        }
+        return uri;
+    }
+
+    private string GetShowsLink()
+    {
+        var uri = "/media/tv/shows";
+        if (!string.IsNullOrWhiteSpace(_query))
+        {
+            uri = QueryHelpers.AddQueryString(uri, "query", _query);
+        }
+        return uri;
+    }
+
 }

ErsatzTV/Pages/TelevisionSeasonList.razor

@@ -64,7 +64,7 @@
         <div class="mb-2">
             @foreach (string genre in _show.Genres.OrderBy(g => g))
             {
-                <MudFab Color="Color.Info" Size="Size.Small" Label="@genre" Class="mr-2 mb-2" Link="@($"/search?query=genre%3a{genre}")"/>
+                <MudFab Color="Color.Info" Size="Size.Small" Label="@genre" Class="mr-2 mb-2" Link="@($"/search?query=genre%3a%22{genre.ToLowerInvariant()}%22")"/>
             }
         </div>
     }
@@ -74,7 +74,7 @@
         <div>
             @foreach (string tag in _show.Tags.OrderBy(t => t))
             {
-                <MudFab Color="Color.Info" Size="Size.Small" Label="@tag" Class="mr-2 mb-2" Link="@($"/search?query=tag%3a{tag}")"/>
+                <MudFab Color="Color.Info" Size="Size.Small" Label="@tag" Class="mr-2 mb-2" Link="@($"/search?query=tag%3a%22{tag.ToLowerInvariant()}%22")"/>
             }
         </div>
     }

ErsatzTV/Pages/TelevisionShowList.razor

@@ -1,9 +1,12 @@
 @page "/media/tv/shows"
 @page "/media/tv/shows/page/{PageNumber:int}"
+@using LanguageExt.UnsafeValueAccess
+@using Microsoft.AspNetCore.WebUtilities
+@using Microsoft.Extensions.Primitives
 @using ErsatzTV.Application.MediaCards
-@using ErsatzTV.Application.MediaCards.Queries
 @using ErsatzTV.Application.MediaCollections
 @using ErsatzTV.Application.MediaCollections.Commands
+@using ErsatzTV.Application.Search.Queries
 @using Unit = LanguageExt.Unit
 @inherits MultiSelectBase<TelevisionShowList>
 @inject NavigationManager NavigationManager
@@ -32,7 +35,8 @@
         }
         else
         {
-            <div style="margin-left: auto; margin-right: auto; max-width: 300px;">
+            <MudText Style="margin-bottom: auto; margin-top: auto; width: 33%">@_query</MudText>
+            <div style="max-width: 300px; width: 33%;">
                 <MudPaper Style="align-items: center; display: flex; justify-content: center;">
                     <MudIconButton Icon="@Icons.Material.Outlined.ChevronLeft"
                                    OnClick="@PrevPage"
@@ -63,6 +67,12 @@
         }
     </MudContainer>
 </MudContainer>
+@if (_data.PageMap.IsSome)
+{
+    <LetterBar PageMap="@_data.PageMap.ValueUnsafe()"
+               BaseUri="/media/tv/shows"
+               Query="@_query"/>
+}
 
 @code {
     private static int PageSize => 100;
@@ -71,6 +81,7 @@
     public int PageNumber { get; set; }
 
     private TelevisionShowCardResultsViewModel _data;
+    private string _query;
 
     protected override Task OnParametersSetAsync()
     {
@@ -79,15 +90,40 @@
             PageNumber = 1;
         }
 
+        string query = new Uri(NavigationManager.Uri).Query;
+        if (QueryHelpers.ParseQuery(query).TryGetValue("query", out StringValues value))
+        {
+            _query = value;
+        }
+
         return RefreshData();
     }
 
-    protected override async Task RefreshData() =>
-        _data = await Mediator.Send(new GetTelevisionShowCards(PageNumber, PageSize));
+    protected override async Task RefreshData()
+    {
+        string searchQuery = string.IsNullOrWhiteSpace(_query) ? "type:show" : $"type:show AND ({_query})";
+        _data = await Mediator.Send(new QuerySearchIndexShows(searchQuery, PageNumber, PageSize));
+    }
 
-    private void PrevPage() => NavigationManager.NavigateTo($"/media/tv/shows/page/{PageNumber - 1}");
+    private void PrevPage()
+    {
+        var uri = $"/media/tv/shows/page/{PageNumber - 1}";
+        if (!string.IsNullOrWhiteSpace(_query))
+        {
+            uri = QueryHelpers.AddQueryString(uri, "query", _query);
+        }
+        NavigationManager.NavigateTo(uri);
+    }
 
-    private void NextPage() => NavigationManager.NavigateTo($"/media/tv/shows/page/{PageNumber + 1}");
+    private void NextPage()
+    {
+        var uri = $"/media/tv/shows/page/{PageNumber + 1}";
+        if (!string.IsNullOrWhiteSpace(_query))
+        {
+            uri = QueryHelpers.AddQueryString(uri, "query", _query);
+        }
+        NavigationManager.NavigateTo(uri);
+    }
 
     private void SelectClicked(MediaCardViewModel card, MouseEventArgs e)
     {

ErsatzTV/Services/SchedulerService.cs

@@ -8,6 +8,7 @@ using ErsatzTV.Application;
 using ErsatzTV.Application.MediaSources.Commands;
 using ErsatzTV.Application.Playouts.Commands;
 using ErsatzTV.Application.Plex.Commands;
+using ErsatzTV.Application.Search.Commands;
 using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Interfaces.Locking;
 using ErsatzTV.Infrastructure.Data;
@@ -54,6 +55,7 @@ namespace ErsatzTV.Services
 
         private async Task DoWork(CancellationToken cancellationToken)
         {
+            await RebuildSearchIndex(cancellationToken);
             await BuildPlayouts(cancellationToken);
             await ScanLocalMediaSources(cancellationToken);
             await ScanPlexMediaSources(cancellationToken);
@@ -111,5 +113,8 @@ namespace ErsatzTV.Services
                 }
             }
         }
+
+        private async Task RebuildSearchIndex(CancellationToken cancellationToken) =>
+            await _channel.WriteAsync(new RebuildSearchIndex(), cancellationToken);
     }
 }

ErsatzTV/Services/WorkerService.cs

@@ -6,6 +6,7 @@ using ErsatzTV.Application;
 using ErsatzTV.Application.MediaSources.Commands;
 using ErsatzTV.Application.Playouts.Commands;
 using ErsatzTV.Application.Plex.Commands;
+using ErsatzTV.Application.Search.Commands;
 using ErsatzTV.Core;
 using LanguageExt;
 using MediatR;
@@ -82,6 +83,9 @@ namespace ErsatzTV.Services
                                     synchronizePlexLibraryById.PlexLibraryId,
                                     error.Value));
                             break;
+                        case RebuildSearchIndex rebuildSearchIndex:
+                            await mediator.Send(rebuildSearchIndex, cancellationToken);
+                            break;
                     }
                 }
                 catch (Exception ex)

ErsatzTV/Shared/LetterBar.razor

@@ -0,0 +1,56 @@
+@using ErsatzTV.Core.Search
+@using Microsoft.AspNetCore.WebUtilities
+<div class="letter-bar-container">
+    <div class="letter-bar">
+        <MudLink Href="@GetLinkForLetter('#')">#</MudLink>
+        <MudLink Href="@GetLinkForLetter('a')">A</MudLink>
+        <MudLink Href="@GetLinkForLetter('b')">B</MudLink>
+        <MudLink Href="@GetLinkForLetter('c')">C</MudLink>
+        <MudLink Href="@GetLinkForLetter('d')">D</MudLink>
+        <MudLink Href="@GetLinkForLetter('e')">E</MudLink>
+        <MudLink Href="@GetLinkForLetter('f')">F</MudLink>
+        <MudLink Href="@GetLinkForLetter('g')">G</MudLink>
+        <MudLink Href="@GetLinkForLetter('h')">H</MudLink>
+        <MudLink Href="@GetLinkForLetter('i')">I</MudLink>
+        <MudLink Href="@GetLinkForLetter('j')">J</MudLink>
+        <MudLink Href="@GetLinkForLetter('k')">K</MudLink>
+        <MudLink Href="@GetLinkForLetter('l')">L</MudLink>
+        <MudLink Href="@GetLinkForLetter('m')">M</MudLink>
+        <MudLink Href="@GetLinkForLetter('n')">N</MudLink>
+        <MudLink Href="@GetLinkForLetter('o')">O</MudLink>
+        <MudLink Href="@GetLinkForLetter('p')">P</MudLink>
+        <MudLink Href="@GetLinkForLetter('q')">Q</MudLink>
+        <MudLink Href="@GetLinkForLetter('r')">R</MudLink>
+        <MudLink Href="@GetLinkForLetter('s')">S</MudLink>
+        <MudLink Href="@GetLinkForLetter('t')">T</MudLink>
+        <MudLink Href="@GetLinkForLetter('u')">U</MudLink>
+        <MudLink Href="@GetLinkForLetter('v')">V</MudLink>
+        <MudLink Href="@GetLinkForLetter('w')">W</MudLink>
+        <MudLink Href="@GetLinkForLetter('x')">X</MudLink>
+        <MudLink Href="@GetLinkForLetter('y')">Y</MudLink>
+        <MudLink Href="@GetLinkForLetter('z')">Z</MudLink>
+    </div>
+</div>
+
+@code {
+
+    [Parameter]
+    public SearchPageMap PageMap { get; set; }
+
+    [Parameter]
+    public string BaseUri { get; set; }
+
+    [Parameter]
+    public string Query { get; set; }
+
+    private string GetLinkForLetter(char letter)
+    {
+        var uri = $"{BaseUri}/page/{PageMap.PageMap[letter]}";
+        if (!string.IsNullOrWhiteSpace(Query))
+        {
+            uri = QueryHelpers.AddQueryString(uri, "query", Query);
+        }
+        return uri;
+    }
+
+}

ErsatzTV/Startup.cs

@@ -15,6 +15,7 @@ using ErsatzTV.Core.Interfaces.Metadata;
 using ErsatzTV.Core.Interfaces.Plex;
 using ErsatzTV.Core.Interfaces.Repositories;
 using ErsatzTV.Core.Interfaces.Scheduling;
+using ErsatzTV.Core.Interfaces.Search;
 using ErsatzTV.Core.Metadata;
 using ErsatzTV.Core.Plex;
 using ErsatzTV.Core.Scheduling;
@@ -24,6 +25,7 @@ using ErsatzTV.Infrastructure.Data.Repositories;
 using ErsatzTV.Infrastructure.Images;
 using ErsatzTV.Infrastructure.Locking;
 using ErsatzTV.Infrastructure.Plex;
+using ErsatzTV.Infrastructure.Search;
 using ErsatzTV.Serialization;
 using ErsatzTV.Services;
 using FluentValidation.AspNetCore;
@@ -209,6 +211,7 @@ namespace ErsatzTV
             services.AddScoped<IPlexMovieLibraryScanner, PlexMovieLibraryScanner>();
             services.AddScoped<IPlexTelevisionLibraryScanner, PlexTelevisionLibraryScanner>();
             services.AddScoped<IPlexServerApiClient, PlexServerApiClient>();
+            services.AddScoped<ISearchIndex, SearchIndex>();
 
             services.AddHostedService<PlexService>();
             services.AddHostedService<FFmpegLocatorService>();

ErsatzTV/wwwroot/css/site.css

@@ -106,4 +106,18 @@
 .media-item-subtitle {
     color: #fff;
     text-shadow: 1px 1px 5px #000;
+}
+
+.letter-bar-container {
+    height: calc(100vh - 128px);
+    position: fixed;
+    right: 1em;
+    top: 128px;
+}
+
+.letter-bar {
+    display: flex;
+    flex-direction: column;
+    height: 100%;
+    justify-content: space-around;
 }