better trakt lists (#384)

* better trakt list support

* update dependencies

* revert unneeded brackets

CHANGELOG.md

@@ -5,9 +5,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 ### Added
-- Add ability to sync Trakt lists to a collection
-  - This sync is one-time (manual button) and one-way (Trakt => ErsatzTV)
-  - After synchronization, the collection will *only* contain media items found in the Trakt list
+- Add Trakt list support under `Lists` > `Trakt Lists`
+  - Trakt lists can be added by url or by `user/list`
+  - To re-download a Trakt list, simply add it again (no need to delete)
+  - See `Logs` for unmatched item details
+  - Trakt lists can only be scheduled by using Smart Collections
 
 ### Fixed
 - Fix local television scanner to properly update episode metadata when NFO files have been added/changed

ErsatzTV.Application/ErsatzTV.Application.csproj

@@ -13,7 +13,7 @@
       </PackageReference>
       <PackageReference Include="MediatR" Version="9.0.0" />
       <PackageReference Include="Microsoft.Extensions.Caching.Abstractions" Version="5.0.0" />
-      <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="16.10.56">
+      <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.0.63">
         <PrivateAssets>all</PrivateAssets>
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       </PackageReference>

ErsatzTV.Application/MediaCollections/Commands/AddTraktList.cs

@@ -5,6 +5,5 @@ using Unit = LanguageExt.Unit;
 
 namespace ErsatzTV.Application.MediaCollections.Commands
 {
-    public record SyncCollectionFromTraktList
-        (int CollectionId, string TraktListUrl) : IRequest<Either<BaseError, Unit>>;
+    public record AddTraktList(string TraktListUrl) : IRequest<Either<BaseError, Unit>>, IBackgroundServiceRequest;
 }

ErsatzTV.Application/MediaCollections/Commands/AddTraktListHandler.cs

@@ -0,0 +1,80 @@
+using System.Text.RegularExpressions;
+using System.Threading;
+using System.Threading.Tasks;
+using ErsatzTV.Core;
+using ErsatzTV.Core.Interfaces.Locking;
+using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Interfaces.Search;
+using ErsatzTV.Core.Interfaces.Trakt;
+using ErsatzTV.Infrastructure.Data;
+using LanguageExt;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using Unit = LanguageExt.Unit;
+
+namespace ErsatzTV.Application.MediaCollections.Commands
+{
+    public class AddTraktListHandler : TraktCommandBase, IRequestHandler<AddTraktList, Either<BaseError, Unit>>
+    {
+        private readonly IDbContextFactory<TvContext> _dbContextFactory;
+        private readonly IEntityLocker _entityLocker;
+
+        public AddTraktListHandler(
+            ITraktApiClient traktApiClient,
+            ISearchRepository searchRepository,
+            ISearchIndex searchIndex,
+            IDbContextFactory<TvContext> dbContextFactory,
+            ILogger<AddTraktListHandler> logger,
+            IEntityLocker entityLocker)
+            : base(traktApiClient, searchRepository, searchIndex, logger)
+        {
+            _dbContextFactory = dbContextFactory;
+            _entityLocker = entityLocker;
+        }
+
+        public async Task<Either<BaseError, Unit>> Handle(AddTraktList request, CancellationToken cancellationToken)
+        {
+            try
+            {
+                Validation<BaseError, Parameters> validation = ValidateUrl(request);
+                return await validation.Match(
+                    DoAdd,
+                    error => Task.FromResult<Either<BaseError, Unit>>(error.Join()));
+            }
+            finally
+            {
+                _entityLocker.UnlockTrakt();
+            }
+        }
+        
+        private static Validation<BaseError, Parameters> ValidateUrl(AddTraktList request)
+        {
+            const string PATTERN = @"(?:https:\/\/trakt\.tv\/users\/)?([\w\-_]+)\/(?:lists\/)?([\w\-_]+)";
+            Match match = Regex.Match(request.TraktListUrl, PATTERN);
+            if (match.Success)
+            {
+                string user = match.Groups[1].Value;
+                string list = match.Groups[2].Value;
+                return new Parameters(user, list);
+            }
+
+            return BaseError.New("Invalid Trakt list url");
+        }
+
+        private async Task<Either<BaseError, Unit>> DoAdd(Parameters parameters)
+        {
+            await using TvContext dbContext = _dbContextFactory.CreateDbContext();
+            
+            return await TraktApiClient.GetUserList(parameters.User, parameters.List)
+                .BindT(list => SaveList(dbContext, list))
+                .BindT(list => SaveListItems(dbContext, list))
+                .BindT(list => MatchListItems(dbContext, list))
+                .MapT(_ => Unit.Default);
+            
+            // match list items (and update in search index)
+        }
+
+        private record Parameters(string User, string List);
+    }
+}

ErsatzTV.Application/MediaCollections/Commands/CreateMultiCollectionHandler.cs

@@ -56,7 +56,7 @@ namespace ErsatzTV.Application.MediaCollections.Commands
                 name => new MultiCollection
                 {
                     Name = name,
-                    MultiCollectionItems = request.Items.Map(
+                    MultiCollectionItems = request.Items.Bind(
                             i =>
                             {
                                 if (i.CollectionId.HasValue)
@@ -70,12 +70,10 @@ namespace ErsatzTV.Application.MediaCollections.Commands
                                         });
                                 }
 
-                                return None;
+                                return Option<MultiCollectionItem>.None;
                             })
-                        .Sequence()
-                        .Flatten()
                         .ToList(),
-                    MultiCollectionSmartItems = request.Items.Map(
+                    MultiCollectionSmartItems = request.Items.Bind(
                             i =>
                             {
                                 if (i.SmartCollectionId.HasValue)
@@ -89,10 +87,8 @@ namespace ErsatzTV.Application.MediaCollections.Commands
                                         });
                                 }
 
-                                return None;
+                                return Option<MultiCollectionSmartItem>.None;
                             })
-                        .Sequence()
-                        .Flatten()
                         .ToList()
                 });
 

ErsatzTV.Application/MediaCollections/Commands/DeleteTraktList.cs

@@ -0,0 +1,9 @@
+using ErsatzTV.Core;
+using LanguageExt;
+using MediatR;
+
+namespace ErsatzTV.Application.MediaCollections.Commands
+{
+    public record DeleteTraktList(int TraktListId) : IRequest<Either<BaseError, LanguageExt.Unit>>,
+        IBackgroundServiceRequest;
+}

ErsatzTV.Application/MediaCollections/Commands/DeleteTraktListHandler.cs

@@ -0,0 +1,79 @@
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using ErsatzTV.Core;
+using ErsatzTV.Core.Domain;
+using ErsatzTV.Core.Interfaces.Locking;
+using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Interfaces.Search;
+using ErsatzTV.Core.Interfaces.Trakt;
+using ErsatzTV.Infrastructure.Data;
+using ErsatzTV.Infrastructure.Extensions;
+using LanguageExt;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using static LanguageExt.Prelude;
+
+namespace ErsatzTV.Application.MediaCollections.Commands
+{
+    public class DeleteTraktListHandler : TraktCommandBase, MediatR.IRequestHandler<DeleteTraktList, Either<BaseError, Unit>>
+    {
+        private readonly ISearchRepository _searchRepository;
+        private readonly ISearchIndex _searchIndex;
+        private readonly IDbContextFactory<TvContext> _dbContextFactory;
+        private readonly IEntityLocker _entityLocker;
+
+        public DeleteTraktListHandler(
+            ITraktApiClient traktApiClient,
+            ISearchRepository searchRepository,
+            ISearchIndex searchIndex,
+            IDbContextFactory<TvContext> dbContextFactory,
+            ILogger<DeleteTraktListHandler> logger,
+            IEntityLocker entityLocker)
+            : base(traktApiClient, searchRepository, searchIndex, logger)
+        {
+            _searchRepository = searchRepository;
+            _searchIndex = searchIndex;
+            _dbContextFactory = dbContextFactory;
+            _entityLocker = entityLocker;
+        }
+
+        public async Task<Either<BaseError, Unit>> Handle(
+            DeleteTraktList request,
+            CancellationToken cancellationToken)
+        {
+            try
+            {
+                await using TvContext dbContext = _dbContextFactory.CreateDbContext();
+
+                Validation<BaseError, TraktList> validation = await TraktListMustExist(dbContext, request.TraktListId);
+                return await validation.Apply(c => DoDeletion(dbContext, c));
+            }
+            finally
+            {
+                _entityLocker.UnlockTrakt();
+            }
+        }
+
+        private async Task<Unit> DoDeletion(TvContext dbContext, TraktList traktList)
+        {
+            var mediaItemIds = traktList.Items.Bind(i => Optional(i.MediaItemId)).ToList();
+
+            dbContext.TraktLists.Remove(traktList);
+            if (await dbContext.SaveChangesAsync() > 0)
+            {
+                foreach (int mediaItemId in mediaItemIds)
+                {
+                    foreach (MediaItem mediaItem in await _searchRepository.GetItemToIndex(mediaItemId))
+                    {
+                        await _searchIndex.UpdateItems(_searchRepository, new[] { mediaItem }.ToList());
+                    }
+                }
+            }
+
+            _searchIndex.Commit();
+
+            return Unit.Default;
+        }
+    }
+}

ErsatzTV.Application/MediaCollections/Commands/MatchTraktListItems.cs

@@ -0,0 +1,10 @@
+using ErsatzTV.Core;
+using LanguageExt;
+using MediatR;
+using Unit = LanguageExt.Unit;
+
+namespace ErsatzTV.Application.MediaCollections.Commands
+{
+    public record MatchTraktListItems(int TraktListId, bool Unlock = true) : IRequest<Either<BaseError, Unit>>,
+        IBackgroundServiceRequest;
+}

ErsatzTV.Application/MediaCollections/Commands/MatchTraktListItemsHandler.cs

@@ -0,0 +1,58 @@
+using System.Threading;
+using System.Threading.Tasks;
+using ErsatzTV.Core;
+using ErsatzTV.Core.Domain;
+using ErsatzTV.Core.Interfaces.Locking;
+using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Interfaces.Search;
+using ErsatzTV.Core.Interfaces.Trakt;
+using ErsatzTV.Infrastructure.Data;
+using LanguageExt;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using Unit = LanguageExt.Unit;
+
+namespace ErsatzTV.Application.MediaCollections.Commands
+{
+    public class MatchTraktListItemsHandler : TraktCommandBase,
+        IRequestHandler<MatchTraktListItems, Either<BaseError, Unit>>
+    {
+        private readonly IDbContextFactory<TvContext> _dbContextFactory;
+        private readonly IEntityLocker _entityLocker;
+
+        public MatchTraktListItemsHandler(
+            ITraktApiClient traktApiClient,
+            ISearchRepository searchRepository,
+            ISearchIndex searchIndex,
+            IDbContextFactory<TvContext> dbContextFactory,
+            ILogger<MatchTraktListItemsHandler> logger,
+            IEntityLocker entityLocker) : base(traktApiClient, searchRepository, searchIndex, logger)
+        {
+            _dbContextFactory = dbContextFactory;
+            _entityLocker = entityLocker;
+        }
+
+        public async Task<Either<BaseError, Unit>> Handle(
+            MatchTraktListItems request,
+            CancellationToken cancellationToken)
+        {
+            try
+            {
+                await using TvContext dbContext = _dbContextFactory.CreateDbContext();
+
+                Validation<BaseError, TraktList> validation = await TraktListMustExist(dbContext, request.TraktListId);
+                return await validation.Match(
+                    async l => await MatchListItems(dbContext, l).MapT(_ => Unit.Default),
+                    error => Task.FromResult<Either<BaseError, Unit>>(error.Join()));
+            }
+            finally
+            {
+                if (request.Unlock)
+                {
+                    _entityLocker.UnlockTrakt();
+                }
+            }
+        }
+    }
+}

ErsatzTV.Application/MediaCollections/Commands/SyncCollectionFromTraktListHandler.cs

@@ -1,269 +0,0 @@
-using System.Collections.Generic;
-using System.Linq;
-using System.Text.RegularExpressions;
-using System.Threading;
-using System.Threading.Channels;
-using System.Threading.Tasks;
-using ErsatzTV.Application.Playouts.Commands;
-using ErsatzTV.Core;
-using ErsatzTV.Core.Domain;
-using ErsatzTV.Core.Interfaces.Repositories;
-using ErsatzTV.Core.Interfaces.Trakt;
-using ErsatzTV.Core.Trakt;
-using ErsatzTV.Infrastructure.Data;
-using ErsatzTV.Infrastructure.Extensions;
-using LanguageExt;
-using MediatR;
-using Microsoft.EntityFrameworkCore;
-using Microsoft.Extensions.Logging;
-using static LanguageExt.Prelude;
-using Unit = LanguageExt.Unit;
-
-namespace ErsatzTV.Application.MediaCollections.Commands
-{
-    public class
-        SyncCollectionFromTraktListHandler : IRequestHandler<SyncCollectionFromTraktList, Either<BaseError, Unit>>
-    {
-        private readonly ITraktApiClient _traktApiClient;
-        private readonly IDbContextFactory<TvContext> _dbContextFactory;
-        private readonly IMediaCollectionRepository _mediaCollectionRepository;
-        private readonly ChannelWriter<IBackgroundServiceRequest> _channel;
-        private readonly ILogger<SyncCollectionFromTraktListHandler> _logger;
-
-        public SyncCollectionFromTraktListHandler(
-            ITraktApiClient traktApiClient,
-            IDbContextFactory<TvContext> dbContextFactory,
-            IMediaCollectionRepository mediaCollectionRepository,
-            ChannelWriter<IBackgroundServiceRequest> channel,
-            ILogger<SyncCollectionFromTraktListHandler> logger)
-        {
-            _traktApiClient = traktApiClient;
-            _dbContextFactory = dbContextFactory;
-            _mediaCollectionRepository = mediaCollectionRepository;
-            _channel = channel;
-            _logger = logger;
-        }
-
-        public async Task<Either<BaseError, Unit>> Handle(
-            SyncCollectionFromTraktList request,
-            CancellationToken cancellationToken)
-        {
-            // validate and parse user/list from URL
-            const string PATTERN = @"users\/([\w\-_]+)\/lists\/([\w\-_]+)";
-            Match match = Regex.Match(request.TraktListUrl, PATTERN);
-            if (match.Success)
-            {
-                string user = match.Groups[1].Value;
-                string list = match.Groups[2].Value;
-
-                Either<BaseError, List<TraktListItemWithGuids>> maybeItems =
-                    await _traktApiClient.GetUserListItems(user, list);
-                return await maybeItems.Match(
-                    async items => await SyncCollectionFromItems(request.CollectionId, items),
-                    error => Task.FromResult(Left<BaseError, Unit>(error)));
-            }
-
-            return BaseError.New("Invalid Trakt List URL");
-        }
-
-        private async Task<Either<BaseError, Unit>> SyncCollectionFromItems(int collectionId, List<TraktListItemWithGuids> items)
-        {
-            await using TvContext dbContext = _dbContextFactory.CreateDbContext();
-
-            Option<Collection> maybeCollection = await dbContext.Collections
-                .Include(c => c.MediaItems)
-                .SelectOneAsync(c => c.Id, c => c.Id == collectionId);
-
-            foreach (Collection collection in maybeCollection)
-            {
-                var movieIds = new System.Collections.Generic.HashSet<int>();
-                foreach (TraktListItemWithGuids item in items.Filter(i => i.Kind == TraktListItemKind.Movie))
-                {
-                    foreach (int movieId in await IdentifyMovie(dbContext, item))
-                    {
-                        movieIds.Add(movieId);
-                    }
-                }
-                
-                var showIds = new System.Collections.Generic.HashSet<int>();
-                foreach (TraktListItemWithGuids item in items.Filter(i => i.Kind == TraktListItemKind.Show))
-                {
-                    foreach (int showId in await IdentifyShow(dbContext, item))
-                    {
-                        showIds.Add(showId);
-                    }
-                }
-                
-                var seasonIds = new System.Collections.Generic.HashSet<int>();
-                foreach (TraktListItemWithGuids item in items.Filter(i => i.Kind == TraktListItemKind.Season))
-                {
-                    foreach (int seasonId in await IdentifySeason(dbContext, item))
-                    {
-                        seasonIds.Add(seasonId);
-                    }
-                }
-                
-                var episodeIds = new System.Collections.Generic.HashSet<int>();
-                foreach (TraktListItemWithGuids item in items.Filter(i => i.Kind == TraktListItemKind.Episode))
-                {
-                    foreach (int episodeId in await IdentifyEpisode(dbContext, item))
-                    {
-                        episodeIds.Add(episodeId);
-                    }
-                }
-
-                var allIds = movieIds
-                    .Append(showIds)
-                    .Append(seasonIds)
-                    .Append(episodeIds)
-                    .ToList();
-
-                collection.MediaItems.RemoveAll(mi => !allIds.Contains(mi.Id));
-
-                List<MediaItem> toAdd = await dbContext.MediaItems
-                    .Filter(mi => allIds.Contains(mi.Id))
-                    .ToListAsync();
-
-                collection.MediaItems.AddRange(toAdd);
-
-                if (await dbContext.SaveChangesAsync() > 0)
-                {
-                    // rebuild all playouts that use this collection
-                    foreach (int playoutId in await _mediaCollectionRepository.PlayoutIdsUsingCollection(collectionId))
-                    {
-                        await _channel.WriteAsync(new BuildPlayout(playoutId, true));
-                    }
-                }
-            }
-
-            return Unit.Default;
-        }
-
-        private async Task<Option<int>> IdentifyMovie(TvContext dbContext, TraktListItemWithGuids item)
-        {
-            Option<int> maybeMovieByGuid = await dbContext.MovieMetadata
-                .Filter(mm => mm.Guids.Any(g => item.Guids.Contains(g.Guid)))
-                .FirstOrDefaultAsync()
-                .Map(Optional)
-                .MapT(mm => mm.MovieId);
-
-            foreach (int movieId in maybeMovieByGuid)
-            {
-                _logger.LogDebug("Located trakt movie {Title} by id", item.DisplayTitle);
-                return movieId;
-            }
-
-            Option<int> maybeMovieByTitleYear = await dbContext.MovieMetadata
-                .Filter(mm => mm.Title == item.Title && mm.Year == item.Year)
-                .FirstOrDefaultAsync()
-                .Map(Optional)
-                .MapT(mm => mm.MovieId);
-
-            foreach (int movieId in maybeMovieByTitleYear)
-            {
-                _logger.LogDebug("Located trakt movie {Title} by title/year", item.DisplayTitle);
-                return movieId;
-            }
-
-            _logger.LogDebug("Unable to locate trakt movie {Title}", item.DisplayTitle);
-
-            return None;
-        }
-
-        private async Task<Option<int>> IdentifyShow(TvContext dbContext, TraktListItemWithGuids item)
-        {
-            Option<int> maybeShowByGuid = await dbContext.ShowMetadata
-                .Filter(sm => sm.Guids.Any(g => item.Guids.Contains(g.Guid)))
-                .FirstOrDefaultAsync()
-                .Map(Optional)
-                .MapT(sm => sm.ShowId);
-
-            foreach (int showId in maybeShowByGuid)
-            {
-                _logger.LogDebug("Located trakt show {Title} by id", item.DisplayTitle);
-                return showId;
-            }
-
-            Option<int> maybeShowByTitleYear = await dbContext.ShowMetadata
-                .Filter(sm => sm.Title == item.Title && sm.Year == item.Year)
-                .FirstOrDefaultAsync()
-                .Map(Optional)
-                .MapT(sm => sm.ShowId);
-
-            foreach (int showId in maybeShowByTitleYear)
-            {
-                _logger.LogDebug("Located trakt show {Title} by title/year", item.Title);
-                return showId;
-            }
-
-            _logger.LogDebug("Unable to locate trakt show {Title}", item.DisplayTitle);
-
-            return None;
-        }
-        
-        private async Task<Option<int>> IdentifySeason(TvContext dbContext, TraktListItemWithGuids item)
-        {
-            Option<int> maybeSeasonByGuid = await dbContext.SeasonMetadata
-                .Filter(sm => sm.Guids.Any(g => item.Guids.Contains(g.Guid)))
-                .FirstOrDefaultAsync()
-                .Map(Optional)
-                .MapT(sm => sm.SeasonId);
-
-            foreach (int seasonId in maybeSeasonByGuid)
-            {
-                _logger.LogDebug("Located trakt season {Title} by id", item.DisplayTitle);
-                return seasonId;
-            }
-
-            Option<int> maybeSeasonByTitleYear = await dbContext.SeasonMetadata
-                .Filter(sm => sm.Season.Show.ShowMetadata.Any(s => s.Title == item.Title && s.Year == item.Year))
-                .Filter(sm => sm.Season.SeasonNumber == item.Season)
-                .FirstOrDefaultAsync()
-                .Map(Optional)
-                .MapT(sm => sm.SeasonId);
-
-            foreach (int seasonId in maybeSeasonByTitleYear)
-            {
-                _logger.LogDebug("Located trakt season {Title} by title/year/season", item.DisplayTitle);
-                return seasonId;
-            }
-
-            _logger.LogDebug("Unable to locate trakt season {Title}", item.DisplayTitle);
-
-            return None;
-        }
-        
-        private async Task<Option<int>> IdentifyEpisode(TvContext dbContext, TraktListItemWithGuids item)
-        {
-            Option<int> maybeEpisodeByGuid = await dbContext.EpisodeMetadata
-                .Filter(sm => sm.Guids.Any(g => item.Guids.Contains(g.Guid)))
-                .FirstOrDefaultAsync()
-                .Map(Optional)
-                .MapT(sm => sm.EpisodeId);
-
-            foreach (int episodeId in maybeEpisodeByGuid)
-            {
-                _logger.LogDebug("Located trakt episode {Title} by id", item.DisplayTitle);
-                return episodeId;
-            }
-
-            Option<int> maybeEpisodeByTitleYear = await dbContext.EpisodeMetadata
-                .Filter(sm => sm.Episode.Season.Show.ShowMetadata.Any(s => s.Title == item.Title && s.Year == item.Year))
-                .Filter(em => em.Episode.Season.SeasonNumber == item.Season)
-                .Filter(sm => sm.Episode.EpisodeMetadata.Any(e => e.EpisodeNumber == item.Episode))
-                .FirstOrDefaultAsync()
-                .Map(Optional)
-                .MapT(sm => sm.EpisodeId);
-
-            foreach (int episodeId in maybeEpisodeByTitleYear)
-            {
-                _logger.LogDebug("Located trakt episode {Title} by title/year/season/episode", item.DisplayTitle);
-                return episodeId;
-            }
-
-            _logger.LogDebug("Unable to locate trakt episode {Title}", item.DisplayTitle);
-
-            return None;
-        }
-    }
-}

ErsatzTV.Application/MediaCollections/Commands/TraktCommandBase.cs

@@ -0,0 +1,324 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using ErsatzTV.Core;
+using ErsatzTV.Core.Domain;
+using ErsatzTV.Core.Interfaces.Repositories;
+using ErsatzTV.Core.Interfaces.Search;
+using ErsatzTV.Core.Interfaces.Trakt;
+using ErsatzTV.Core.Trakt;
+using ErsatzTV.Infrastructure.Data;
+using ErsatzTV.Infrastructure.Extensions;
+using LanguageExt;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Logging;
+using static LanguageExt.Prelude;
+
+namespace ErsatzTV.Application.MediaCollections.Commands
+{
+    public abstract class TraktCommandBase
+    {
+        private readonly ISearchRepository _searchRepository;
+        private readonly ISearchIndex _searchIndex;
+        private readonly ILogger _logger;
+
+        protected TraktCommandBase(
+            ITraktApiClient traktApiClient,
+            ISearchRepository searchRepository,
+            ISearchIndex searchIndex,
+            ILogger logger)
+        {
+            _searchRepository = searchRepository;
+            _searchIndex = searchIndex;
+            _logger = logger;
+            TraktApiClient = traktApiClient;
+        }
+
+        protected ITraktApiClient TraktApiClient { get; }
+
+        protected static Task<Validation<BaseError, TraktList>>
+            TraktListMustExist(TvContext dbContext, int traktListId) =>
+            dbContext.TraktLists
+                .Include(l => l.Items)
+                .ThenInclude(i => i.Guids)
+                .SelectOneAsync(c => c.Id, c => c.Id == traktListId)
+                .Map(o => o.ToValidation<BaseError>($"TraktList {traktListId} does not exist."));
+
+        protected async Task<Either<BaseError, TraktList>> SaveList(TvContext dbContext, TraktList list)
+        {
+            Option<TraktList> maybeExisting = await dbContext.TraktLists
+                .Include(l => l.Items)
+                .ThenInclude(i => i.Guids)
+                .SelectOneAsync(tl => tl.Id, tl => tl.User == list.User && tl.List == list.List);
+
+            return await maybeExisting.Match(
+                async existing =>
+                {
+                    existing.Name = list.Name;
+                    existing.Description = list.Description;
+                    existing.ItemCount = list.ItemCount;
+
+                    await dbContext.SaveChangesAsync();
+
+                    return existing;
+                },
+                async () =>
+                {
+                    await dbContext.TraktLists.AddAsync(list);
+                    await dbContext.SaveChangesAsync();
+
+                    return list;
+                });
+        }
+
+        protected async Task<Either<BaseError, TraktList>> SaveListItems(TvContext dbContext, TraktList list)
+        {
+            Either<BaseError, List<TraktListItemWithGuids>> maybeItems =
+                await TraktApiClient.GetUserListItems(list.User, list.List);
+
+            return await maybeItems.Match<Task<Either<BaseError, TraktList>>>(
+                async items =>
+                {
+                    var toAdd = items.Filter(i => list.Items.All(i2 => i2.TraktId != i.TraktId)).ToList();
+                    var toRemove = list.Items.Filter(i => items.All(i2 => i2.TraktId != i.TraktId)).ToList();
+                    
+                    // TODO: do we need to update?
+
+                    list.Items.RemoveAll(toRemove.Contains);
+                    list.Items.AddRange(toAdd.Map(a => ProjectItem(list, a)));
+
+                    await dbContext.SaveChangesAsync();
+
+                    return list;
+                },
+                error => Task.FromResult(Left<BaseError, TraktList>(error)));
+        }
+
+        protected async Task<Either<BaseError, TraktList>> MatchListItems(TvContext dbContext, TraktList list)
+        {
+            try
+            {
+                var ids = new System.Collections.Generic.HashSet<int>();
+
+                foreach (TraktListItem item in list.Items
+                    .OrderBy(i => i.Title).ThenBy(i => i.Year).ThenBy(i => i.Season).ThenBy(i => i.Episode))
+                {
+                    switch (item.Kind)
+                    {
+                        case TraktListItemKind.Movie:
+                            Option<int> maybeMovieId = await IdentifyMovie(dbContext, item);
+                            foreach (int movieId in maybeMovieId)
+                            {
+                                ids.Add(movieId);
+                                item.MediaItemId = movieId;
+                            }
+
+                            break;
+                        case TraktListItemKind.Show:
+                            Option<int> maybeShowId = await IdentifyShow(dbContext, item);
+                            foreach (int showId in maybeShowId)
+                            {
+                                ids.Add(showId);
+                                item.MediaItemId = showId;
+                            }
+
+                            break;
+                        case TraktListItemKind.Season:
+                            Option<int> maybeSeasonId = await IdentifySeason(dbContext, item);
+                            foreach (int seasonId in maybeSeasonId)
+                            {
+                                // TODO: ids.Add(seasonId);
+                                item.MediaItemId = seasonId;
+                            }
+
+                            break;
+                        default:
+                            Option<int> maybeEpisodeId = await IdentifyEpisode(dbContext, item);
+                            foreach (int episodeId in maybeEpisodeId)
+                            {
+                                ids.Add(episodeId);
+                                item.MediaItemId = episodeId;
+                            }
+
+                            break;
+                    }
+                }
+
+                await dbContext.SaveChangesAsync();
+
+                foreach (int mediaItemId in ids)
+                {
+                    Option<MediaItem> maybeItem = await _searchRepository.GetItemToIndex(mediaItemId);
+                    foreach (MediaItem item in maybeItem)
+                    {
+                        await _searchIndex.UpdateItems(_searchRepository, new[] { item }.ToList());
+                    }
+                }
+
+                _searchIndex.Commit();
+
+                return list;
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error matching trakt list items");
+                return BaseError.New(ex.Message);
+            }
+        }
+
+        private static TraktListItem ProjectItem(TraktList list, TraktListItemWithGuids item)
+        {
+            var result = new TraktListItem
+            {
+                TraktList = list,
+                Kind = item.Kind,
+                TraktId = item.TraktId,
+                Rank = item.Rank,
+                Title = item.Title,
+                Year = item.Year,
+                Season = item.Season,
+                Episode = item.Episode,
+            };
+
+            result.Guids = item.Guids.Map(g => new TraktListItemGuid { Guid = g, TraktListItem = result }).ToList();
+
+            return result;
+        }
+        
+        private async Task<Option<int>> IdentifyMovie(TvContext dbContext, TraktListItem item)
+        {
+            var guids = item.Guids.Map(g => g.Guid).ToList();
+            
+            Option<int> maybeMovieByGuid = await dbContext.MovieMetadata
+                .Filter(mm => mm.Guids.Any(g => guids.Contains(g.Guid)))
+                .FirstOrDefaultAsync()
+                .Map(Optional)
+                .MapT(mm => mm.MovieId);
+
+            foreach (int movieId in maybeMovieByGuid)
+            {
+                _logger.LogDebug("Located trakt movie {Title} by id", item.DisplayTitle);
+                return movieId;
+            }
+
+            Option<int> maybeMovieByTitleYear = await dbContext.MovieMetadata
+                .Filter(mm => mm.Title == item.Title && mm.Year == item.Year)
+                .FirstOrDefaultAsync()
+                .Map(Optional)
+                .MapT(mm => mm.MovieId);
+
+            foreach (int movieId in maybeMovieByTitleYear)
+            {
+                _logger.LogDebug("Located trakt movie {Title} by title/year", item.DisplayTitle);
+                return movieId;
+            }
+
+            _logger.LogDebug("Unable to locate trakt movie {Title}", item.DisplayTitle);
+
+            return None;
+        }
+
+        private async Task<Option<int>> IdentifyShow(TvContext dbContext, TraktListItem item)
+        {
+            var guids = item.Guids.Map(g => g.Guid).ToList();
+
+            Option<int> maybeShowByGuid = await dbContext.ShowMetadata
+                .Filter(sm => sm.Guids.Any(g => guids.Contains(g.Guid)))
+                .FirstOrDefaultAsync()
+                .Map(Optional)
+                .MapT(sm => sm.ShowId);
+
+            foreach (int showId in maybeShowByGuid)
+            {
+                _logger.LogDebug("Located trakt show {Title} by id", item.DisplayTitle);
+                return showId;
+            }
+
+            Option<int> maybeShowByTitleYear = await dbContext.ShowMetadata
+                .Filter(sm => sm.Title == item.Title && sm.Year == item.Year)
+                .FirstOrDefaultAsync()
+                .Map(Optional)
+                .MapT(sm => sm.ShowId);
+
+            foreach (int showId in maybeShowByTitleYear)
+            {
+                _logger.LogDebug("Located trakt show {Title} by title/year", item.Title);
+                return showId;
+            }
+
+            _logger.LogDebug("Unable to locate trakt show {Title}", item.DisplayTitle);
+
+            return None;
+        }
+        
+        private async Task<Option<int>> IdentifySeason(TvContext dbContext, TraktListItem item)
+        {
+            var guids = item.Guids.Map(g => g.Guid).ToList();
+
+            Option<int> maybeSeasonByGuid = await dbContext.SeasonMetadata
+                .Filter(sm => sm.Guids.Any(g => guids.Contains(g.Guid)))
+                .FirstOrDefaultAsync()
+                .Map(Optional)
+                .MapT(sm => sm.SeasonId);
+
+            foreach (int seasonId in maybeSeasonByGuid)
+            {
+                _logger.LogDebug("Located trakt season {Title} by id", item.DisplayTitle);
+                return seasonId;
+            }
+
+            Option<int> maybeSeasonByTitleYear = await dbContext.SeasonMetadata
+                .Filter(sm => sm.Season.Show.ShowMetadata.Any(s => s.Title == item.Title && s.Year == item.Year))
+                .Filter(sm => sm.Season.SeasonNumber == item.Season)
+                .FirstOrDefaultAsync()
+                .Map(Optional)
+                .MapT(sm => sm.SeasonId);
+
+            foreach (int seasonId in maybeSeasonByTitleYear)
+            {
+                _logger.LogDebug("Located trakt season {Title} by title/year/season", item.DisplayTitle);
+                return seasonId;
+            }
+
+            _logger.LogDebug("Unable to locate trakt season {Title}", item.DisplayTitle);
+
+            return None;
+        }
+        
+        private async Task<Option<int>> IdentifyEpisode(TvContext dbContext, TraktListItem item)
+        {
+            var guids = item.Guids.Map(g => g.Guid).ToList();
+
+            Option<int> maybeEpisodeByGuid = await dbContext.EpisodeMetadata
+                .Filter(em => em.Guids.Any(g => guids.Contains(g.Guid)))
+                .FirstOrDefaultAsync()
+                .Map(Optional)
+                .MapT(sm => sm.EpisodeId);
+
+            foreach (int episodeId in maybeEpisodeByGuid)
+            {
+                _logger.LogDebug("Located trakt episode {Title} by id", item.DisplayTitle);
+                return episodeId;
+            }
+
+            Option<int> maybeEpisodeByTitleYear = await dbContext.EpisodeMetadata
+                .Filter(sm => sm.Episode.Season.Show.ShowMetadata.Any(s => s.Title == item.Title && s.Year == item.Year))
+                .Filter(em => em.Episode.Season.SeasonNumber == item.Season)
+                .Filter(sm => sm.Episode.EpisodeMetadata.Any(e => e.EpisodeNumber == item.Episode))
+                .FirstOrDefaultAsync()
+                .Map(Optional)
+                .MapT(sm => sm.EpisodeId);
+
+            foreach (int episodeId in maybeEpisodeByTitleYear)
+            {
+                _logger.LogDebug("Located trakt episode {Title} by title/year/season/episode", item.DisplayTitle);
+                return episodeId;
+            }
+
+            _logger.LogDebug("Unable to locate trakt episode {Title}", item.DisplayTitle);
+
+            return None;
+        }
+    }
+}

ErsatzTV.Application/MediaCollections/Mapper.cs

@@ -19,6 +19,15 @@ namespace ErsatzTV.Application.MediaCollections
         internal static SmartCollectionViewModel ProjectToViewModel(SmartCollection collection) =>
             new(collection.Id, collection.Name, collection.Query);
 
+        internal static TraktListViewModel ProjectToViewModel(TraktList traktList) =>
+            new(
+                traktList.Id,
+                traktList.TraktId,
+                $"{traktList.User}/{traktList.List}",
+                traktList.Name,
+                traktList.ItemCount,
+                traktList.Items.Count(i => i.MediaItemId.HasValue));
+
         private static MultiCollectionItemViewModel ProjectToViewModel(MultiCollectionItem multiCollectionItem) =>
             new(
                 multiCollectionItem.MultiCollectionId,

ErsatzTV.Application/MediaCollections/PagedTraktListsViewModel.cs

@@ -0,0 +1,6 @@
+using System.Collections.Generic;
+
+namespace ErsatzTV.Application.MediaCollections
+{
+    public record PagedTraktListsViewModel(int TotalCount, List<TraktListViewModel> Page);
+}

ErsatzTV.Application/MediaCollections/Queries/GetPagedTraktLists.cs

@@ -0,0 +1,6 @@
+using MediatR;
+
+namespace ErsatzTV.Application.MediaCollections.Queries
+{
+    public record GetPagedTraktLists(int PageNum, int PageSize) : IRequest<PagedTraktListsViewModel>;
+}

ErsatzTV.Application/MediaCollections/Queries/GetPagedTraktListsHandler.cs

@@ -0,0 +1,47 @@
+using System.Collections.Generic;
+using System.Data;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+using Dapper;
+using ErsatzTV.Infrastructure.Data;
+using LanguageExt;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+using static ErsatzTV.Application.MediaCollections.Mapper;
+
+namespace ErsatzTV.Application.MediaCollections.Queries
+{
+    public class GetPagedTraktListsHandler : IRequestHandler<GetPagedTraktLists, PagedTraktListsViewModel>
+    {
+        private readonly IDbConnection _dbConnection;
+        private readonly IDbContextFactory<TvContext> _dbContextFactory;
+
+        public GetPagedTraktListsHandler(IDbContextFactory<TvContext> dbContextFactory, IDbConnection dbConnection)
+        {
+            _dbContextFactory = dbContextFactory;
+            _dbConnection = dbConnection;
+        }
+
+        public async Task<PagedTraktListsViewModel> Handle(
+            GetPagedTraktLists request,
+            CancellationToken cancellationToken)
+        {
+            int count = await _dbConnection.QuerySingleAsync<int>(@"SELECT COUNT (*) FROM TraktList");
+
+            await using TvContext dbContext = _dbContextFactory.CreateDbContext();
+            List<TraktListViewModel> page = await dbContext.TraktLists.FromSqlRaw(
+                    @"SELECT * FROM TraktList
+                    ORDER BY Name
+                    COLLATE NOCASE
+                    LIMIT {0} OFFSET {1}",
+                    request.PageSize,
+                    request.PageNum * request.PageSize)
+                .Include(l => l.Items)
+                .ToListAsync(cancellationToken)
+                .Map(list => list.Map(ProjectToViewModel).ToList());
+
+            return new PagedTraktListsViewModel(count, page);
+        }
+    }
+}

ErsatzTV.Application/MediaCollections/TraktListViewModel.cs

@@ -0,0 +1,4 @@
+namespace ErsatzTV.Application.MediaCollections
+{
+    public record TraktListViewModel(int Id, int TraktId, string Slug, string Name, int ItemCount, int MatchCount);
+}

ErsatzTV.Core.Tests/ErsatzTV.Core.Tests.csproj

@@ -14,7 +14,7 @@
       <PackageReference Include="LanguageExt.Core" Version="3.4.15" />
       <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="5.0.2" />
       <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
-      <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="16.10.56">
+      <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.0.63">
         <PrivateAssets>all</PrivateAssets>
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       </PackageReference>

ErsatzTV.Core/Domain/Collection/TraktList.cs

@@ -0,0 +1,16 @@
+using System.Collections.Generic;
+
+namespace ErsatzTV.Core.Domain
+{
+    public class TraktList
+    {
+        public int Id { get; set; }
+        public int TraktId { get; set; }
+        public string User { get; set; }
+        public string List { get; set; }
+        public string Name { get; set; }
+        public string Description { get; set; }
+        public int ItemCount { get; set; }
+        public List<TraktListItem> Items { get; set; }
+    }
+}

ErsatzTV.Core/Domain/Collection/TraktListItem.cs

@@ -0,0 +1,31 @@
+using System.Collections.Generic;
+
+namespace ErsatzTV.Core.Domain
+{
+    public class TraktListItem
+    {
+        public int Id { get; set; }
+        public int TraktListId { get; set; }
+        public TraktList TraktList { get; set; }
+
+        public TraktListItemKind Kind { get; set; }
+        public int TraktId { get; set; }
+        public int Rank { get; set; }
+        public string Title { get; set; }
+        public int? Year { get; set; }
+        public int? Season { get; set; }
+        public int? Episode { get; set; }
+        public List<TraktListItemGuid> Guids { get; set; }
+
+        public int? MediaItemId { get; set; }
+        public MediaItem MediaItem { get; set; }
+
+        public string DisplayTitle => Kind switch
+        {
+            TraktListItemKind.Movie => $"{Title} ({Year})",
+            TraktListItemKind.Show => $"{Title} ({Year})",
+            TraktListItemKind.Season => $"{Title} ({Year}) S{Season:00}",
+            _ => $"{Title} ({Year}) S{Season:00}E{Episode:00}"
+        };
+    }
+}

ErsatzTV.Core/Domain/Collection/TraktListItemGuid.cs

@@ -0,0 +1,10 @@
+namespace ErsatzTV.Core.Domain
+{
+    public class TraktListItemGuid
+    {
+        public int Id { get; set; }
+        public string Guid { get; set; }
+        public int TraktListItemId { get; set; }
+        public TraktListItem TraktListItem { get; set; }
+    }
+}

ErsatzTV.Core/Domain/Collection/TraktListItemKind.cs

@@ -1,4 +1,4 @@
-namespace ErsatzTV.Core.Trakt
+namespace ErsatzTV.Core.Domain
 {
     public enum TraktListItemKind
     {

ErsatzTV.Core/Domain/ConfigElementKey.cs

@@ -25,6 +25,7 @@
         public static ConfigElementKey PlayoutsPageSize => new("pages.playouts.page_size");
         public static ConfigElementKey PlayoutsDetailPageSize => new("pages.playouts.detail_page_size");
         public static ConfigElementKey LogsPageSize => new("pages.logs.page_size");
+        public static ConfigElementKey TraktListsPageSize => new("pages.trakt.lists_page_size");
         public static ConfigElementKey LibraryRefreshInterval => new("scanner.library_refresh_interval");
         public static ConfigElementKey PlayoutDaysToBuild => new("playout.days_to_build");
     }

ErsatzTV.Core/Domain/MediaItem/MediaItem.cs

@@ -9,5 +9,6 @@ namespace ErsatzTV.Core.Domain
         public LibraryPath LibraryPath { get; set; }
         public List<Collection> Collections { get; set; }
         public List<CollectionItem> CollectionItems { get; set; }
+        public List<TraktListItem> TraktListItems { get; set; }
     }
 }

ErsatzTV.Core/ErsatzTV.Core.csproj

@@ -16,7 +16,7 @@
       <PackageReference Include="MediatR" Version="9.0.0" />
       <PackageReference Include="Microsoft.Extensions.Http" Version="5.0.0" />
       <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="5.0.0" />
-      <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="16.10.56">
+      <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.0.63">
         <PrivateAssets>all</PrivateAssets>
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       </PackageReference>

ErsatzTV.Core/Interfaces/Locking/IEntityLocker.cs

@@ -7,6 +7,7 @@ namespace ErsatzTV.Core.Interfaces.Locking
         event EventHandler OnLibraryChanged;
         event EventHandler OnPlexChanged;
         event EventHandler<Type> OnRemoteMediaSourceChanged;
+        event EventHandler OnTraktChanged;
         bool LockLibrary(int libraryId);
         bool UnlockLibrary(int libraryId);
         bool IsLibraryLocked(int libraryId);
@@ -16,5 +17,8 @@ namespace ErsatzTV.Core.Interfaces.Locking
         bool IsRemoteMediaSourceLocked<TMediaSource>();
         bool LockRemoteMediaSource<TMediaSource>();
         bool UnlockRemoteMediaSource<TMediaSource>();
+        bool IsTraktLocked();
+        bool LockTrakt();
+        bool UnlockTrakt();
     }
 }

ErsatzTV.Core/Interfaces/Trakt/ITraktApiClient.cs

@@ -1,5 +1,6 @@
 using System.Collections.Generic;
 using System.Threading.Tasks;
+using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Trakt;
 using LanguageExt;
 
@@ -7,8 +8,7 @@ namespace ErsatzTV.Core.Interfaces.Trakt
 {
     public interface ITraktApiClient
     {
-        Task<Either<BaseError, List<TraktListItemWithGuids>>> GetUserListItems(
-            string user,
-            string list);
+        Task<Either<BaseError, TraktList>> GetUserList(string user, string list);
+        Task<Either<BaseError, List<TraktListItemWithGuids>>> GetUserListItems(string user, string list);
     }
 }

ErsatzTV.Core/Trakt/TraktListItemWithGuids.cs

@@ -1,8 +1,11 @@
 using System.Collections.Generic;
+using ErsatzTV.Core.Domain;
 
 namespace ErsatzTV.Core.Trakt
 {
     public record TraktListItemWithGuids(
+        int TraktId,
+        int Rank,
         string DisplayTitle,
         string Title,
         int? Year,

ErsatzTV.Infrastructure/Data/Configurations/Collection/TraktListConfiguration.cs

@@ -0,0 +1,19 @@
+using ErsatzTV.Core.Domain;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace ErsatzTV.Infrastructure.Data.Configurations
+{
+    public class TraktListConfiguration : IEntityTypeConfiguration<TraktList>
+    {
+        public void Configure(EntityTypeBuilder<TraktList> builder)
+        {
+            builder.ToTable("TraktList");
+
+            builder.HasMany(l => l.Items)
+                .WithOne(i => i.TraktList)
+                .HasForeignKey(i => i.TraktListId)
+                .OnDelete(DeleteBehavior.Cascade);
+        }
+    }
+}

ErsatzTV.Infrastructure/Data/Configurations/Collection/TraktListItemConfiguration.cs

@@ -0,0 +1,21 @@
+using ErsatzTV.Core.Domain;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace ErsatzTV.Infrastructure.Data.Configurations
+{
+    public class TraktListItemConfiguration : IEntityTypeConfiguration<TraktListItem>
+    {
+        public void Configure(EntityTypeBuilder<TraktListItem> builder)
+        {
+            builder.ToTable("TraktListItem");
+
+            builder.HasOne(i => i.MediaItem)
+                .WithMany(mi => mi.TraktListItems);
+
+            builder.HasMany(i => i.Guids)
+                .WithOne(g => g.TraktListItem)
+                .HasForeignKey(g => g.TraktListItemId);
+        }
+    }
+}

ErsatzTV.Infrastructure/Data/Configurations/Collection/TraktListItemGuidConfiguration.cs

@@ -0,0 +1,11 @@
+using ErsatzTV.Core.Domain;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace ErsatzTV.Infrastructure.Data.Configurations
+{
+    public class TraktListItemGuidConfiguration : IEntityTypeConfiguration<TraktListItemGuid>
+    {
+        public void Configure(EntityTypeBuilder<TraktListItemGuid> builder) => builder.ToTable("TraktListItemGuid");
+    }
+}

ErsatzTV.Infrastructure/Data/Repositories/EmbyTelevisionRepository.cs

@@ -90,6 +90,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .ThenInclude(mm => mm.Artwork)
                 .Include(m => m.ShowMetadata)
                 .ThenInclude(mm => mm.Guids)
+                .Include(m => m.TraktListItems)
+                .ThenInclude(tli => tli.TraktList)
                 .Filter(m => m.ItemId == show.ItemId)
                 .OrderBy(m => m.ItemId)
                 .SingleOrDefaultAsync();
@@ -432,6 +434,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .Include(m => m.EpisodeMetadata)
                 .ThenInclude(mm => mm.Writers)
                 .Include(m => m.Season)
+                .Include(m => m.TraktListItems)
+                .ThenInclude(tli => tli.TraktList)
                 .Filter(m => m.ItemId == episode.ItemId)
                 .OrderBy(m => m.ItemId)
                 .SingleOrDefaultAsync();

ErsatzTV.Infrastructure/Data/Repositories/JellyfinTelevisionRepository.cs

@@ -90,6 +90,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .ThenInclude(mm => mm.Artwork)
                 .Include(m => m.ShowMetadata)
                 .ThenInclude(mm => mm.Guids)
+                .Include(m => m.TraktListItems)
+                .ThenInclude(tli => tli.TraktList)
                 .Filter(m => m.ItemId == show.ItemId)
                 .OrderBy(m => m.ItemId)
                 .SingleOrDefaultAsync();
@@ -432,6 +434,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .Include(m => m.EpisodeMetadata)
                 .ThenInclude(mm => mm.Writers)
                 .Include(m => m.Season)
+                .Include(m => m.TraktListItems)
+                .ThenInclude(tli => tli.TraktList)
                 .Filter(m => m.ItemId == episode.ItemId)
                 .OrderBy(m => m.ItemId)
                 .SingleOrDefaultAsync();

ErsatzTV.Infrastructure/Data/Repositories/MovieRepository.cs

@@ -89,6 +89,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .ThenInclude(mv => mv.MediaFiles)
                 .Include(i => i.MediaVersions)
                 .ThenInclude(mv => mv.Streams)
+                .Include(i => i.TraktListItems)
+                .ThenInclude(tli => tli.TraktList)
                 .OrderBy(i => i.MediaVersions.First().MediaFiles.First().Path)
                 .SingleOrDefaultAsync(i => i.MediaVersions.First().MediaFiles.First().Path == path);
 
@@ -129,6 +131,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .ThenInclude(mv => mv.Streams)
                 .Include(i => i.LibraryPath)
                 .ThenInclude(lp => lp.Library)
+                .Include(i => i.TraktListItems)
+                .ThenInclude(tli => tli.TraktList)
                 .OrderBy(i => i.Key)
                 .SingleOrDefaultAsync(i => i.Key == item.Key);
 
@@ -315,6 +319,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .ThenInclude(mm => mm.Writers)
                 .Include(m => m.MovieMetadata)
                 .ThenInclude(mm => mm.Guids)
+                .Include(m => m.TraktListItems)
+                .ThenInclude(tli => tli.TraktList)
                 .Filter(m => m.ItemId == movie.ItemId)
                 .OrderBy(m => m.ItemId)
                 .SingleOrDefaultAsync();
@@ -570,6 +576,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .Include(m => m.MovieMetadata)
                 .ThenInclude(mm => mm.Guids)
                 .Filter(m => m.ItemId == movie.ItemId)
+                .Include(m => m.TraktListItems)
+                .ThenInclude(tli => tli.TraktList)
                 .OrderBy(m => m.ItemId)
                 .SingleOrDefaultAsync();
 
@@ -786,7 +794,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                             },
                             Streams = new List<MediaStream>()
                         }
-                    }
+                    },
+                    TraktListItems = new List<TraktListItem>()
                 };
                 await dbContext.Movies.AddAsync(movie);
                 await dbContext.SaveChangesAsync();

ErsatzTV.Infrastructure/Data/Repositories/MusicVideoRepository.cs

@@ -47,6 +47,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .ThenInclude(mv => mv.MediaFiles)
                 .Include(mv => mv.MediaVersions)
                 .ThenInclude(mv => mv.Streams)
+                .Include(mv => mv.TraktListItems)
+                .ThenInclude(tli => tli.TraktList)
                 .OrderBy(i => i.MediaVersions.First().MediaFiles.First().Path)
                 .SingleOrDefaultAsync(i => i.MediaVersions.First().MediaFiles.First().Path == path);
 
@@ -188,7 +190,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                             },
                             Streams = new List<MediaStream>()
                         }
-                    }
+                    },
+                    TraktListItems = new List<TraktListItem>()
                 };
 
                 await dbContext.MusicVideos.AddAsync(musicVideo);

ErsatzTV.Infrastructure/Data/Repositories/SearchRepository.cs

@@ -87,6 +87,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .ThenInclude(mm => mm.Styles)
                 .Include(mi => (mi as Artist).ArtistMetadata)
                 .ThenInclude(mm => mm.Moods)
+                .Include(mi => mi.TraktListItems)
+                .ThenInclude(tli => tli.TraktList)
                 .OrderBy(mi => mi.Id)
                 .SingleOrDefaultAsync(mi => mi.Id == id)
                 .Map(Optional);

ErsatzTV.Infrastructure/Data/Repositories/TelevisionRepository.cs

@@ -221,6 +221,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                         .ThenInclude(sm => sm.Guids)
                         .Include(s => s.LibraryPath)
                         .ThenInclude(lp => lp.Library)
+                        .Include(s => s.TraktListItems)
+                        .ThenInclude(tli => tli.TraktList)
                         .OrderBy(s => s.Id)
                         .SingleOrDefaultAsync(s => s.Id == id)
                         .Map(Optional);
@@ -247,7 +249,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 {
                     LibraryPathId = libraryPathId,
                     ShowMetadata = new List<ShowMetadata> { metadata },
-                    Seasons = new List<Season>()
+                    Seasons = new List<Season>(),
+                    TraktListItems = new List<TraktListItem>()
                 };
 
                 await dbContext.Shows.AddAsync(show);
@@ -311,6 +314,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .Include(i => i.LibraryPath)
                 .ThenInclude(lp => lp.Library)
                 .Include(i => i.Season)
+                .Include(i => i.TraktListItems)
+                .ThenInclude(tli => tli.TraktList)
                 .OrderBy(i => i.MediaVersions.First().MediaFiles.First().Path)
                 .SingleOrDefaultAsync(i => i.MediaVersions.First().MediaFiles.First().Path == path);
 
@@ -414,6 +419,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .ThenInclude(sm => sm.Guids)
                 .Include(i => i.LibraryPath)
                 .ThenInclude(lp => lp.Library)
+                .Include(i => i.TraktListItems)
+                .ThenInclude(tli => tli.TraktList)
                 .OrderBy(i => i.Key)
                 .SingleOrDefaultAsync(i => i.Key == item.Key);
 
@@ -469,6 +476,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                 .Include(i => i.LibraryPath)
                 .ThenInclude(lp => lp.Library)
                 .Include(e => e.Season)
+                .Include(e => e.TraktListItems)
+                .ThenInclude(tli => tli.TraktList)
                 .OrderBy(i => i.Key)
                 .SingleOrDefaultAsync(i => i.Key == item.Key);
 
@@ -724,7 +733,8 @@ namespace ErsatzTV.Infrastructure.Data.Repositories
                             },
                             Streams = new List<MediaStream>()
                         }
-                    }
+                    },
+                    TraktListItems = new List<TraktListItem>()
                 };
                 await dbContext.Episodes.AddAsync(episode);
                 await dbContext.SaveChangesAsync();

ErsatzTV.Infrastructure/Data/TvContext.cs

@@ -69,6 +69,7 @@ namespace ErsatzTV.Infrastructure.Data
         public DbSet<FFmpegProfile> FFmpegProfiles { get; set; }
         public DbSet<Resolution> Resolutions { get; set; }
         public DbSet<LanguageCode> LanguageCodes { get; set; }
+        public DbSet<TraktList> TraktLists { get; set; }
 
         protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) =>
             optionsBuilder.UseLoggerFactory(_loggerFactory);

ErsatzTV.Infrastructure/Emby/EmbyApiClient.cs

@@ -211,7 +211,8 @@ namespace ErsatzTV.Infrastructure.Emby
                     ItemId = item.Id,
                     Etag = item.Etag,
                     MediaVersions = new List<MediaVersion> { version },
-                    MovieMetadata = new List<MovieMetadata> { metadata }
+                    MovieMetadata = new List<MovieMetadata> { metadata },
+                    TraktListItems = new List<TraktListItem>()
                 };
 
                 return movie;
@@ -335,7 +336,8 @@ namespace ErsatzTV.Infrastructure.Emby
                 {
                     ItemId = item.Id,
                     Etag = item.Etag,
-                    ShowMetadata = new List<ShowMetadata> { metadata }
+                    ShowMetadata = new List<ShowMetadata> { metadata },
+                    TraktListItems = new List<TraktListItem>()
                 };
 
                 return show;
@@ -461,7 +463,8 @@ namespace ErsatzTV.Infrastructure.Emby
                 {
                     ItemId = item.Id,
                     Etag = item.Etag,
-                    SeasonMetadata = new List<SeasonMetadata> { metadata }
+                    SeasonMetadata = new List<SeasonMetadata> { metadata },
+                    TraktListItems = new List<TraktListItem>()
                 };
 
                 if (item.IndexNumber.HasValue)
@@ -509,7 +512,8 @@ namespace ErsatzTV.Infrastructure.Emby
                     ItemId = item.Id,
                     Etag = item.Etag,
                     MediaVersions = new List<MediaVersion> { version },
-                    EpisodeMetadata = new List<EpisodeMetadata> { metadata }
+                    EpisodeMetadata = new List<EpisodeMetadata> { metadata },
+                    TraktListItems = new List<TraktListItem>()
                 };
 
                 return episode;

ErsatzTV.Infrastructure/ErsatzTV.Infrastructure.csproj

@@ -22,11 +22,12 @@
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       </PackageReference>
       <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="5.0.10" />
-      <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="16.10.56">
+      <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.0.63">
         <PrivateAssets>all</PrivateAssets>
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       </PackageReference>
       <PackageReference Include="Refit" Version="6.0.94" />
+      <PackageReference Include="Refit.Newtonsoft.Json" Version="6.0.94" />
       <PackageReference Include="SixLabors.ImageSharp" Version="1.0.3" />
     </ItemGroup>
 

ErsatzTV.Infrastructure/Health/Checks/EpisodeMetadataHealthCheck.cs

@@ -35,9 +35,7 @@ namespace ErsatzTV.Infrastructure.Health.Checks
             {
                 var paths = episodes.SelectMany(e => e.MediaVersions.Map(mv => mv.MediaFiles))
                     .Flatten()
-                    .Map(f => Optional<string>(Path.GetDirectoryName(f.Path)))
-                    .Sequence()
-                    .Flatten()
+                    .Bind(f => Optional<string>(Path.GetDirectoryName(f.Path)))
                     .Distinct()
                     .Take(5)
                     .ToList();

ErsatzTV.Infrastructure/Health/Checks/MovieMetadataHealthCheck.cs

@@ -35,9 +35,7 @@ namespace ErsatzTV.Infrastructure.Health.Checks
             {
                 var paths = movies.SelectMany(e => e.MediaVersions.Map(mv => mv.MediaFiles))
                     .Flatten()
-                    .Map(f => Optional<string>(Path.GetDirectoryName(f.Path)))
-                    .Sequence()
-                    .Flatten()
+                    .Bind(f => Optional<string>(Path.GetDirectoryName(f.Path)))
                     .Distinct()
                     .Take(5)
                     .ToList();

ErsatzTV.Infrastructure/Jellyfin/JellyfinApiClient.cs

@@ -264,7 +264,8 @@ namespace ErsatzTV.Infrastructure.Jellyfin
                     ItemId = item.Id,
                     Etag = item.Etag,
                     MediaVersions = new List<MediaVersion> { version },
-                    MovieMetadata = new List<MovieMetadata> { metadata }
+                    MovieMetadata = new List<MovieMetadata> { metadata },
+                    TraktListItems = new List<TraktListItem>()
                 };
 
                 return movie;
@@ -393,7 +394,8 @@ namespace ErsatzTV.Infrastructure.Jellyfin
                 {
                     ItemId = item.Id,
                     Etag = item.Etag,
-                    ShowMetadata = new List<ShowMetadata> { metadata }
+                    ShowMetadata = new List<ShowMetadata> { metadata },
+                    TraktListItems = new List<TraktListItem>()
                 };
 
                 return show;
@@ -524,7 +526,8 @@ namespace ErsatzTV.Infrastructure.Jellyfin
                 {
                     ItemId = item.Id,
                     Etag = item.Etag,
-                    SeasonMetadata = new List<SeasonMetadata> { metadata }
+                    SeasonMetadata = new List<SeasonMetadata> { metadata },
+                    TraktListItems = new List<TraktListItem>()
                 };
 
                 if (item.IndexNumber.HasValue)
@@ -578,7 +581,8 @@ namespace ErsatzTV.Infrastructure.Jellyfin
                     ItemId = item.Id,
                     Etag = item.Etag,
                     MediaVersions = new List<MediaVersion> { version },
-                    EpisodeMetadata = new List<EpisodeMetadata> { metadata }
+                    EpisodeMetadata = new List<EpisodeMetadata> { metadata },
+                    TraktListItems = new List<TraktListItem>()
                 };
 
                 return episode;

ErsatzTV.Infrastructure/Locking/EntityLocker.cs

@@ -9,6 +9,7 @@ namespace ErsatzTV.Infrastructure.Locking
         private readonly ConcurrentDictionary<int, byte> _lockedLibraries;
         private readonly ConcurrentDictionary<Type, byte> _lockedRemoteMediaSourceTypes;
         private bool _plex;
+        private bool _trakt;
 
         public EntityLocker()
         {
@@ -19,6 +20,7 @@ namespace ErsatzTV.Infrastructure.Locking
         public event EventHandler OnLibraryChanged;
         public event EventHandler OnPlexChanged;
         public event EventHandler<Type> OnRemoteMediaSourceChanged;
+        public event EventHandler OnTraktChanged;
 
         public bool LockLibrary(int libraryId)
         {
@@ -100,5 +102,31 @@ namespace ErsatzTV.Infrastructure.Locking
 
             return false;
         }
+        
+        public bool LockTrakt()
+        {
+            if (!_trakt)
+            {
+                _trakt = true;
+                OnTraktChanged?.Invoke(this, EventArgs.Empty);
+                return true;
+            }
+
+            return false;
+        }
+
+        public bool UnlockTrakt()
+        {
+            if (_trakt)
+            {
+                _trakt = false;
+                OnTraktChanged?.Invoke(this, EventArgs.Empty);
+                return true;
+            }
+
+            return false;
+        }
+
+        public bool IsTraktLocked() => _trakt;
     }
 }

ErsatzTV.Infrastructure/Migrations/20210925032411_Add_TraktList.cs

@@ -0,0 +1,108 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+namespace ErsatzTV.Infrastructure.Migrations
+{
+    public partial class Add_TraktList : Migration
+    {
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "TraktList",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    TraktId = table.Column<int>(type: "INTEGER", nullable: false),
+                    User = table.Column<string>(type: "TEXT", nullable: true),
+                    List = table.Column<string>(type: "TEXT", nullable: true),
+                    Name = table.Column<string>(type: "TEXT", nullable: true),
+                    Description = table.Column<string>(type: "TEXT", nullable: true),
+                    ItemCount = table.Column<int>(type: "INTEGER", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_TraktList", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "TraktListItem",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    TraktListId = table.Column<int>(type: "INTEGER", nullable: false),
+                    Kind = table.Column<int>(type: "INTEGER", nullable: false),
+                    TraktId = table.Column<int>(type: "INTEGER", nullable: false),
+                    Rank = table.Column<int>(type: "INTEGER", nullable: false),
+                    Title = table.Column<string>(type: "TEXT", nullable: true),
+                    Year = table.Column<int>(type: "INTEGER", nullable: true),
+                    Season = table.Column<int>(type: "INTEGER", nullable: true),
+                    Episode = table.Column<int>(type: "INTEGER", nullable: true),
+                    MediaItemId = table.Column<int>(type: "INTEGER", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_TraktListItem", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_TraktListItem_MediaItem_MediaItemId",
+                        column: x => x.MediaItemId,
+                        principalTable: "MediaItem",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Restrict);
+                    table.ForeignKey(
+                        name: "FK_TraktListItem_TraktList_TraktListId",
+                        column: x => x.TraktListId,
+                        principalTable: "TraktList",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "TraktListItemGuid",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    Guid = table.Column<string>(type: "TEXT", nullable: true),
+                    TraktListItemId = table.Column<int>(type: "INTEGER", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_TraktListItemGuid", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_TraktListItemGuid_TraktListItem_TraktListItemId",
+                        column: x => x.TraktListItemId,
+                        principalTable: "TraktListItem",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_TraktListItem_MediaItemId",
+                table: "TraktListItem",
+                column: "MediaItemId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_TraktListItem_TraktListId",
+                table: "TraktListItem",
+                column: "TraktListId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_TraktListItemGuid_TraktListItemId",
+                table: "TraktListItemGuid",
+                column: "TraktListItemId");
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "TraktListItemGuid");
+
+            migrationBuilder.DropTable(
+                name: "TraktListItem");
+
+            migrationBuilder.DropTable(
+                name: "TraktList");
+        }
+    }
+}

ErsatzTV.Infrastructure/Migrations/TvContextModelSnapshot.cs

@@ -1507,6 +1507,96 @@ namespace ErsatzTV.Infrastructure.Migrations
                     b.ToTable("Tag");
                 });
 
+            modelBuilder.Entity("ErsatzTV.Core.Domain.TraktList", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Description")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("ItemCount")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("List")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("TraktId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("User")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("TraktList");
+                });
+
+            modelBuilder.Entity("ErsatzTV.Core.Domain.TraktListItem", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int?>("Episode")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("Kind")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int?>("MediaItemId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("Rank")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int?>("Season")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Title")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("TraktId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("TraktListId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int?>("Year")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("MediaItemId");
+
+                    b.HasIndex("TraktListId");
+
+                    b.ToTable("TraktListItem");
+                });
+
+            modelBuilder.Entity("ErsatzTV.Core.Domain.TraktListItemGuid", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Guid")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("TraktListItemId")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("TraktListItemId");
+
+                    b.ToTable("TraktListItemGuid");
+                });
+
             modelBuilder.Entity("ErsatzTV.Core.Domain.Writer", b =>
                 {
                     b.Property<int>("Id")
@@ -2596,6 +2686,34 @@ namespace ErsatzTV.Infrastructure.Migrations
                         .OnDelete(DeleteBehavior.Cascade);
                 });
 
+            modelBuilder.Entity("ErsatzTV.Core.Domain.TraktListItem", b =>
+                {
+                    b.HasOne("ErsatzTV.Core.Domain.MediaItem", "MediaItem")
+                        .WithMany("TraktListItems")
+                        .HasForeignKey("MediaItemId");
+
+                    b.HasOne("ErsatzTV.Core.Domain.TraktList", "TraktList")
+                        .WithMany("Items")
+                        .HasForeignKey("TraktListId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("MediaItem");
+
+                    b.Navigation("TraktList");
+                });
+
+            modelBuilder.Entity("ErsatzTV.Core.Domain.TraktListItemGuid", b =>
+                {
+                    b.HasOne("ErsatzTV.Core.Domain.TraktListItem", "TraktListItem")
+                        .WithMany("Guids")
+                        .HasForeignKey("TraktListItemId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("TraktListItem");
+                });
+
             modelBuilder.Entity("ErsatzTV.Core.Domain.Writer", b =>
                 {
                     b.HasOne("ErsatzTV.Core.Domain.EpisodeMetadata", null)
@@ -2979,6 +3097,8 @@ namespace ErsatzTV.Infrastructure.Migrations
             modelBuilder.Entity("ErsatzTV.Core.Domain.MediaItem", b =>
                 {
                     b.Navigation("CollectionItems");
+
+                    b.Navigation("TraktListItems");
                 });
 
             modelBuilder.Entity("ErsatzTV.Core.Domain.MediaSource", b =>
@@ -3083,6 +3203,16 @@ namespace ErsatzTV.Infrastructure.Migrations
                     b.Navigation("MultiCollectionSmartItems");
                 });
 
+            modelBuilder.Entity("ErsatzTV.Core.Domain.TraktList", b =>
+                {
+                    b.Navigation("Items");
+                });
+
+            modelBuilder.Entity("ErsatzTV.Core.Domain.TraktListItem", b =>
+                {
+                    b.Navigation("Guids");
+                });
+
             modelBuilder.Entity("ErsatzTV.Core.Domain.Artist", b =>
                 {
                     b.Navigation("ArtistMetadata");

ErsatzTV.Infrastructure/Plex/PlexServerApiClient.cs

@@ -335,7 +335,8 @@ namespace ErsatzTV.Infrastructure.Plex
             {
                 Key = response.Key,
                 MovieMetadata = new List<MovieMetadata> { metadata },
-                MediaVersions = new List<MediaVersion> { version }
+                MediaVersions = new List<MediaVersion> { version },
+                TraktListItems = new List<TraktListItem>()
             };
 
             return movie;
@@ -507,7 +508,8 @@ namespace ErsatzTV.Infrastructure.Plex
             var show = new PlexShow
             {
                 Key = response.Key,
-                ShowMetadata = new List<ShowMetadata> { metadata }
+                ShowMetadata = new List<ShowMetadata> { metadata },
+                TraktListItems = new List<TraktListItem>()
             };
 
             return show;
@@ -661,7 +663,8 @@ namespace ErsatzTV.Infrastructure.Plex
             {
                 Key = response.Key,
                 SeasonNumber = response.Index,
-                SeasonMetadata = new List<SeasonMetadata> { metadata }
+                SeasonMetadata = new List<SeasonMetadata> { metadata },
+                TraktListItems = new List<TraktListItem>()
             };
 
             return season;
@@ -700,7 +703,8 @@ namespace ErsatzTV.Infrastructure.Plex
             {
                 Key = response.Key,
                 EpisodeMetadata = new List<EpisodeMetadata> { metadata },
-                MediaVersions = new List<MediaVersion> { version }
+                MediaVersions = new List<MediaVersion> { version },
+                TraktListItems = new List<TraktListItem>()
             };
 
             return episode;

ErsatzTV.Infrastructure/Search/SearchIndex.cs

@@ -51,6 +51,7 @@ namespace ErsatzTV.Infrastructure.Search
         private const string ContentRatingField = "content_rating";
         private const string DirectorField = "director";
         private const string WriterField = "writer";
+        private const string TraktListField = "trakt_list";
 
         public const string MovieType = "movie";
         public const string ShowType = "show";
@@ -339,6 +340,11 @@ namespace ErsatzTV.Infrastructure.Search
                         doc.Add(new TextField(WriterField, writer.Name, Field.Store.NO));
                     }
 
+                    foreach (TraktListItem item in movie.TraktListItems)
+                    {
+                        doc.Add(new StringField(TraktListField, item.TraktList.TraktId.ToString(), Field.Store.NO));
+                    }
+
                     _writer.UpdateDocument(new Term(IdField, movie.Id.ToString()), doc);
                 }
                 catch (Exception ex)
@@ -449,6 +455,11 @@ namespace ErsatzTV.Infrastructure.Search
                     {
                         doc.Add(new TextField(ActorField, actor.Name, Field.Store.NO));
                     }
+                    
+                    foreach (TraktListItem item in show.TraktListItems)
+                    {
+                        doc.Add(new StringField(TraktListField, item.TraktList.TraktId.ToString(), Field.Store.NO));
+                    }
 
                     _writer.UpdateDocument(new Term(IdField, show.Id.ToString()), doc);
                 }
@@ -644,6 +655,11 @@ namespace ErsatzTV.Infrastructure.Search
                         doc.Add(new TextField(WriterField, writer.Name, Field.Store.NO));
                     }
 
+                    foreach (TraktListItem item in episode.TraktListItems)
+                    {
+                        doc.Add(new StringField(TraktListField, item.TraktList.TraktId.ToString(), Field.Store.NO));
+                    }
+
                     _writer.UpdateDocument(new Term(IdField, episode.Id.ToString()), doc);
                 }
                 catch (Exception ex)

ErsatzTV.Infrastructure/Trakt/ITraktApi.cs

@@ -8,8 +8,15 @@ namespace ErsatzTV.Infrastructure.Trakt
     [Headers("Accept: application/json", "trakt-api-version: 2")]
     public interface ITraktApi
     {
+        [Get("/users/{user}/lists/{list}")]
+        Task<TraktListResponse> GetUserList(
+            [Header("trakt-api-key")]
+            string clientId,
+            string user,
+            string list);
+        
         [Get("/users/{user}/lists/{list}/items")]
-        Task<List<TraktListItem>> GetUserListItems(
+        Task<List<TraktListItemResponse>> GetUserListItems(
             [Header("trakt-api-key")]
             string clientId,
             string user,

ErsatzTV.Infrastructure/Trakt/Models/TraktListIds.cs

@@ -0,0 +1,8 @@
+namespace ErsatzTV.Infrastructure.Trakt.Models
+{
+    public class TraktListIds
+    {
+        public int Trakt { get; set; }
+        public string Slug { get; set; }
+    }
+}

ErsatzTV.Infrastructure/Trakt/Models/TraktListItemResponse.cs

@@ -1,6 +1,6 @@
 namespace ErsatzTV.Infrastructure.Trakt.Models
 {
-    public class TraktListItem
+    public class TraktListItemResponse
     {
         public int Rank { get; set; }
         public int Id { get; set; }

ErsatzTV.Infrastructure/Trakt/Models/TraktListResponse.cs

@@ -0,0 +1,14 @@
+using Newtonsoft.Json;
+
+namespace ErsatzTV.Infrastructure.Trakt.Models
+{
+    public class TraktListResponse
+    {
+        public string Name { get; set; }
+        public string Description { get; set; }
+        [JsonProperty("item_count")]
+        public int ItemCount { get; set; }
+        public TraktListIds Ids { get; set; }
+        public TraktUser User { get; set; }
+    }
+}

ErsatzTV.Infrastructure/Trakt/Models/TraktUser.cs

@@ -0,0 +1,7 @@
+namespace ErsatzTV.Infrastructure.Trakt.Models
+{
+    public class TraktUser
+    {
+        public string Username { get; set; }
+    }
+}

ErsatzTV.Infrastructure/Trakt/SnakeCasePropertyNamesContractResolver.cs

@@ -0,0 +1,47 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Text;
+using Newtonsoft.Json.Serialization;
+
+namespace ErsatzTV.Infrastructure.Trakt
+{
+    public class DeliminatorSeparatedPropertyNamesContractResolver : DefaultContractResolver
+    {
+        readonly string separator;
+
+        protected DeliminatorSeparatedPropertyNamesContractResolver(char separator)
+        {
+            this.separator = separator.ToString(CultureInfo.InvariantCulture);
+        }
+
+        protected override string ResolvePropertyName(string propertyName)
+        {
+            var parts = new List<string>();
+            var currentWord = new StringBuilder();
+
+            foreach (var c in propertyName.ToCharArray())
+            {
+                if (Char.IsUpper(c) && currentWord.Length > 0)
+                {
+                    parts.Add(currentWord.ToString());
+                    currentWord.Clear();
+                }
+
+                currentWord.Append(char.ToLower(c));
+            }
+
+            if (currentWord.Length > 0)
+            {
+                parts.Add(currentWord.ToString());
+            }
+
+            return String.Join(separator, parts.ToArray());
+        }
+    }
+
+    public class SnakeCasePropertyNamesContractResolver : DeliminatorSeparatedPropertyNamesContractResolver
+    {
+        public SnakeCasePropertyNamesContractResolver() : base('_') { }
+    }
+}

ErsatzTV.Infrastructure/Trakt/TraktApiClient.cs

@@ -2,12 +2,15 @@
 using System.Collections.Generic;
 using System.Threading.Tasks;
 using ErsatzTV.Core;
+using ErsatzTV.Core.Domain;
 using ErsatzTV.Core.Interfaces.Trakt;
 using ErsatzTV.Core.Trakt;
 using ErsatzTV.Infrastructure.Trakt.Models;
 using LanguageExt;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
+using Newtonsoft.Json;
+using Refit;
 
 namespace ErsatzTV.Infrastructure.Trakt
 {
@@ -27,24 +30,64 @@ namespace ErsatzTV.Infrastructure.Trakt
             _logger = logger;
         }
 
-        public async Task<Either<BaseError, List<TraktListItemWithGuids>>> GetUserListItems(
-            string user,
-            string list)
+        public async Task<Either<BaseError, TraktList>> GetUserList(string user, string list)
+        {
+            try
+            {
+                TraktListResponse response = await JsonService().GetUserList(
+                    _traktConfiguration.Value.ClientId,
+                    user,
+                    list);
+
+                return new TraktList
+                {
+                    TraktId = response.Ids.Trakt,
+                    User = response.User.Username,
+                    List = response.Ids.Slug,
+                    Name = response.Name,
+                    Description = response.Description,
+                    ItemCount = response.ItemCount,
+                    Items = new List<TraktListItem>()
+                };
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Error getting trakt list");
+                return BaseError.New(ex.Message);
+            }
+        }
+        
+        private static ITraktApi JsonService()
+        {
+            return RestService.For<ITraktApi>(
+                "https://api.trakt.tv",
+                new RefitSettings
+                {
+                    ContentSerializer = new NewtonsoftJsonContentSerializer(
+                        new JsonSerializerSettings {
+                            ContractResolver = new SnakeCasePropertyNamesContractResolver()
+                        })
+                });
+        }
+
+        public async Task<Either<BaseError, List<TraktListItemWithGuids>>> GetUserListItems(string user, string list)
         {
             try
             {
                 var result = new List<TraktListItemWithGuids>();
                 
-                List<TraktListItem> apiItems = await _traktApi.GetUserListItems(
+                List<TraktListItemResponse> apiItems = await _traktApi.GetUserListItems(
                     _traktConfiguration.Value.ClientId,
                     user,
                     list);
 
-                foreach (TraktListItem apiItem in apiItems)
+                foreach (TraktListItemResponse apiItem in apiItems)
                 {
                     TraktListItemWithGuids item = apiItem.Type.ToLowerInvariant() switch
                     {
                         "movie" => new TraktListItemWithGuids(
+                            apiItem.Id,
+                            apiItem.Rank,
                             $"{apiItem.Movie.Title} ({apiItem.Movie.Year})",
                             apiItem.Movie.Title,
                             apiItem.Movie.Year,
@@ -53,6 +96,8 @@ namespace ErsatzTV.Infrastructure.Trakt
                             TraktListItemKind.Movie,
                             GuidsFromIds(apiItem.Movie.Ids)),
                         "show" => new TraktListItemWithGuids(
+                            apiItem.Id,
+                            apiItem.Rank,
                             $"{apiItem.Show.Title} ({apiItem.Show.Year})",
                             apiItem.Show.Title,
                             apiItem.Show.Year,
@@ -61,6 +106,8 @@ namespace ErsatzTV.Infrastructure.Trakt
                             TraktListItemKind.Show,
                             GuidsFromIds(apiItem.Show.Ids)),
                         "season" => new TraktListItemWithGuids(
+                            apiItem.Id,
+                            apiItem.Rank,
                             $"{apiItem.Show.Title} ({apiItem.Show.Year}) S{apiItem.Season.Number:00}",
                             apiItem.Show.Title,
                             apiItem.Show.Year,
@@ -69,6 +116,8 @@ namespace ErsatzTV.Infrastructure.Trakt
                             TraktListItemKind.Season,
                             GuidsFromIds(apiItem.Season.Ids)),
                         "episode" => new TraktListItemWithGuids(
+                            apiItem.Id,
+                            apiItem.Rank,
                             $"{apiItem.Show.Title} ({apiItem.Show.Year}) S{apiItem.Episode.Season:00}E{apiItem.Episode.Number:00}",
                             apiItem.Show.Title,
                             apiItem.Show.Year,

ErsatzTV/ErsatzTV.csproj

@@ -30,7 +30,7 @@
         <PrivateAssets>all</PrivateAssets>
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       </PackageReference>
-      <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="16.10.56">
+      <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.0.63">
         <PrivateAssets>all</PrivateAssets>
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       </PackageReference>

ErsatzTV/Pages/CollectionItems.razor

@@ -2,7 +2,6 @@
 @using ErsatzTV.Application.MediaCards
 @using ErsatzTV.Application.MediaCards.Queries
 @using ErsatzTV.Application.MediaCollections.Commands
-@using Unit = LanguageExt.Unit
 @inherits MultiSelectBase<CollectionItems>
 @inject NavigationManager _navigationManager
 @inject ChannelWriter<IBackgroundServiceRequest> _channel
@@ -35,15 +34,6 @@
                 <MudText Typo="Typo.h4">@_data.Name</MudText>
                 <MudIconButton Icon="@Icons.Material.Filled.Edit"
                                Link="@($"/media/collections/{Id}/edit")"/>
-                <MudTooltip Text="Sync From Trakt List">
-                    <MudButton Class="ml-3"
-                               Variant="Variant.Filled"
-                               Color="Color.Secondary"
-                               StartIcon="@Icons.Material.Filled.Download"
-                               OnClick="@(_ => SyncFromTraktList())">
-                        Trakt
-                    </MudButton>
-                </MudTooltip>
             </div>
             @if (_data.MovieCards.Any())
             {
@@ -251,7 +241,7 @@
 
         maybeResult.Match(
             result => _data = result,
-            error => _navigationManager.NavigateTo("404"));
+            _ => _navigationManager.NavigateTo("404"));
     }
 
     private IOrderedEnumerable<MovieCardViewModel> OrderMovies(List<MovieCardViewModel> movies)
@@ -396,30 +386,4 @@
         await Mediator.Send(request);
     }
 
-    private async Task SyncFromTraktList()
-    {
-        var options = new DialogOptions { CloseButton = true, MaxWidth = MaxWidth.Small };
-        IDialogReference dialog = Dialog.Show<SyncFromTraktListDialog>("Sync From Trakt List", options);
-        DialogResult result = await dialog.Result;
-        if (!result.Cancelled && result.Data is string url)
-        {
-            Either<BaseError, Unit> syncResult = await Mediator.Send(new SyncCollectionFromTraktList(Id, url));
-            syncResult.Match(
-                Left: error =>
-                {
-                    Snackbar.Add($"Unexpected error synchronizing from Trakt: {error.Value}");
-                    Logger.LogError("Unexpected error synchronizing from Trakt: {Error}", error.Value);
-                },
-                Right: _ =>
-                {
-                    Snackbar.Add("Successfully synchronized collection from Trakt", Severity.Success);
-                });
-
-            if (syncResult.IsRight)
-            {
-                await RefreshData();
-            }
-        }
-    }
-
 }

ErsatzTV/Pages/TraktLists.razor

@@ -0,0 +1,149 @@
+@page "/media/trakt/lists"
+@using ErsatzTV.Application.MediaCollections
+@using ErsatzTV.Application.MediaCollections.Queries
+@using ErsatzTV.Application.Configuration.Queries
+@using ErsatzTV.Application.Configuration.Commands
+@using ErsatzTV.Application.MediaCollections.Commands
+@inject IDialogService _dialog
+@inject IMediator _mediator
+@inject ISnackbar _snackbar
+@inject ILogger<TraktLists> _logger
+@inject IEntityLocker _locker
+@inject ChannelWriter<IBackgroundServiceRequest> _workerChannel
+
+<MudContainer MaxWidth="MaxWidth.ExtraLarge" Class="pt-8">
+    <div>
+        <MudButton Variant="Variant.Filled"
+                   Color="Color.Primary"
+                   Disabled="@_locker.IsTraktLocked()"
+                   OnClick="@(_ => AddTraktList())">
+            Add Trakt List
+        </MudButton>
+    </div>
+    <MudTable Class="mt-4"
+              Hover="true"
+              @bind-RowsPerPage="@_traktListsRowsPerPage"
+              ServerData="@(new Func<TableState, Task<TableData<TraktListViewModel>>>(ServerReloadTraktLists))"
+              Dense="true"
+              @ref="_traktListsTable">
+        <ToolBarContent>
+            <MudText Typo="Typo.h6">Trakt Lists</MudText>
+        </ToolBarContent>
+        <ColGroup>
+            <col/>
+            <col/>
+            <col/>
+            <col style="width: 180px;"/>
+        </ColGroup>
+        <HeaderContent>
+            <MudTh>Id</MudTh>
+            <MudTh>Name</MudTh>
+            <MudTh>Match Status</MudTh>
+            <MudTh/>
+        </HeaderContent>
+        <RowTemplate>
+            <MudTd DataLabel="Id">@context.Slug</MudTd>
+            <MudTd DataLabel="Name">@context.Name</MudTd>
+            <MudTd DataLabel="Match Status">@context.MatchCount of @context.ItemCount</MudTd>
+            <MudTd>
+                <div style="align-items: center; display: flex;">
+                    <MudTooltip Text="Search Trakt List">
+                        <MudIconButton Icon="@Icons.Material.Filled.Search"
+                                       Disabled="@_locker.IsTraktLocked()"
+                                       Link="@($"/search?query=trakt_list%3a{context.TraktId}")">
+                        </MudIconButton>
+                    </MudTooltip>
+                    <MudTooltip Text="Match Trakt List Items">
+                        <MudIconButton Icon="@Icons.Material.Filled.Refresh"
+                                       Disabled="@_locker.IsTraktLocked()"
+                                       OnClick="@(_ => MatchListItems(context))">
+                        </MudIconButton>
+                    </MudTooltip>
+                    <MudTooltip Text="Delete Trakt List">
+                        <MudIconButton Icon="@Icons.Material.Filled.Delete"
+                                       Disabled="@_locker.IsTraktLocked()"
+                                       OnClick="@(_ => DeleteTraktList(context))">
+                        </MudIconButton>
+                    </MudTooltip>
+                </div>
+            </MudTd>
+        </RowTemplate>
+        <PagerContent>
+            <MudTablePager/>
+        </PagerContent>
+    </MudTable>
+</MudContainer>
+
+@code {
+    private MudTable<TraktListViewModel> _traktListsTable;
+
+    private int _traktListsRowsPerPage;
+
+    protected override void OnInitialized()
+    {
+        _locker.OnTraktChanged += LockChanged;
+    }
+
+    protected override async Task OnParametersSetAsync()
+    {
+        _traktListsRowsPerPage = await _mediator.Send(new GetConfigElementByKey(ConfigElementKey.TraktListsPageSize))
+            .Map(maybeRows => maybeRows.Match(ce => int.TryParse(ce.Value, out int rows) ? rows : 10, () => 10));
+    }
+
+    private void LockChanged(object sender, EventArgs e) =>
+        InvokeAsync(async () =>
+        {
+            StateHasChanged();
+            if (!_locker.IsTraktLocked())
+            {
+                await _traktListsTable.ReloadServerData();
+            }
+        });
+
+    private async Task MatchListItems(TraktListViewModel traktList)
+    {
+        if (_locker.LockTrakt())
+        {
+            await _workerChannel.WriteAsync(new MatchTraktListItems(traktList.Id));
+        }
+    }
+
+    private async Task DeleteTraktList(TraktListViewModel traktList)
+    {
+        if (_locker.LockTrakt())
+        {
+            var parameters = new DialogParameters { { "EntityType", "Trakt List" }, { "EntityName", traktList.Name } };
+            var options = new DialogOptions { CloseButton = true, MaxWidth = MaxWidth.ExtraSmall };
+
+            IDialogReference dialog = _dialog.Show<DeleteDialog>("Delete Trakt List", parameters, options);
+            DialogResult result = await dialog.Result;
+            if (!result.Cancelled)
+            {
+                await _workerChannel.WriteAsync(new DeleteTraktList(traktList.Id));
+            }
+        }
+    }
+
+    private async Task<TableData<TraktListViewModel>> ServerReloadTraktLists(TableState state)
+    {
+        await _mediator.Send(new SaveConfigElementByKey(ConfigElementKey.TraktListsPageSize, state.PageSize.ToString()));
+
+        PagedTraktListsViewModel data = await _mediator.Send(new GetPagedTraktLists(state.Page, state.PageSize));
+        return new TableData<TraktListViewModel> { TotalItems = data.TotalCount, Items = data.Page };
+    }
+    
+    private async Task AddTraktList()
+    {
+        if (_locker.LockTrakt())
+        {
+            var options = new DialogOptions { CloseButton = true, MaxWidth = MaxWidth.Small };
+            IDialogReference dialog = _dialog.Show<AddTraktListDialog>("Add Trakt List", options);
+            DialogResult result = await dialog.Result;
+            if (!result.Cancelled && result.Data is string url)
+            {
+                await _workerChannel.WriteAsync(new AddTraktList(url));
+            }
+        }
+    }
+
+}

ErsatzTV/Services/SchedulerService.cs

@@ -6,6 +6,7 @@ using System.Threading.Channels;
 using System.Threading.Tasks;
 using ErsatzTV.Application;
 using ErsatzTV.Application.Maintenance.Commands;
+using ErsatzTV.Application.MediaCollections.Commands;
 using ErsatzTV.Application.MediaSources.Commands;
 using ErsatzTV.Application.Playouts.Commands;
 using ErsatzTV.Application.Plex.Commands;
@@ -85,6 +86,7 @@ namespace ErsatzTV.Services
                 await BuildPlayouts(cancellationToken);
                 await ScanLocalMediaSources(cancellationToken);
                 await ScanPlexMediaSources(cancellationToken);
+                await MatchTraktLists(cancellationToken);
             }
             catch (Exception ex)
             {
@@ -174,6 +176,26 @@ namespace ErsatzTV.Services
             }
         }
 
+        private async Task MatchTraktLists(CancellationToken cancellationToken)
+        {
+            using IServiceScope scope = _serviceScopeFactory.CreateScope();
+            TvContext dbContext = scope.ServiceProvider.GetRequiredService<TvContext>();
+
+            List<TraktList> traktLists = await dbContext.TraktLists
+                .ToListAsync(cancellationToken);
+
+            if (traktLists.Any() && _entityLocker.LockTrakt())
+            {
+                TraktList last = traktLists.Last();
+                foreach (TraktList list in traktLists)
+                {
+                    await _workerChannel.WriteAsync(
+                        new MatchTraktListItems(list.Id, list == last),
+                        cancellationToken);
+                }
+            }
+        }
+
         private ValueTask RebuildSearchIndex(CancellationToken cancellationToken) =>
             _workerChannel.WriteAsync(new RebuildSearchIndex(), cancellationToken);
 

ErsatzTV/Services/WorkerService.cs

@@ -4,6 +4,7 @@ using System.Threading.Channels;
 using System.Threading.Tasks;
 using ErsatzTV.Application;
 using ErsatzTV.Application.Maintenance.Commands;
+using ErsatzTV.Application.MediaCollections.Commands;
 using ErsatzTV.Application.MediaSources.Commands;
 using ErsatzTV.Application.Playouts.Commands;
 using ErsatzTV.Application.Search.Commands;
@@ -77,6 +78,15 @@ namespace ErsatzTV.Services
                             _logger.LogInformation("Deleting orphaned artwork from the database");
                             await mediator.Send(deleteOrphanedArtwork, cancellationToken);
                             break;
+                        case AddTraktList addTraktList:
+                            await mediator.Send(addTraktList, cancellationToken);
+                            break;
+                        case DeleteTraktList deleteTraktList:
+                            await mediator.Send(deleteTraktList, cancellationToken);
+                            break;
+                        case MatchTraktListItems matchTraktListItems:
+                            await mediator.Send(matchTraktListItems, cancellationToken);
+                            break;
                     }
                 }
                 catch (Exception ex)

ErsatzTV/Shared/AddTraktListDialog.razor

@@ -2,7 +2,7 @@
 @inject IMediator _mediator
 @inject IMemoryCache _memoryCache
 @inject ISnackbar _snackbar
-@inject ILogger<SyncFromTraktListDialog> _logger
+@inject ILogger<AddTraktListDialog> _logger
 
 <MudDialog>
     <DialogContent>
@@ -23,7 +23,7 @@
     <DialogActions>
         <MudButton OnClick="Cancel" ButtonType="ButtonType.Reset">Cancel</MudButton>
         <MudButton Color="Color.Primary" Variant="Variant.Filled" OnClick="Submit">
-            Sync
+            Add
         </MudButton>
     </DialogActions>
 </MudDialog>

ErsatzTV/Shared/MainLayout.razor

@@ -53,7 +53,10 @@
                 <MudNavLink Href="/media/tv/shows">TV Shows</MudNavLink>
                 <MudNavLink Href="/media/movies">Movies</MudNavLink>
                 <MudNavLink Href="/media/music/artists">Music</MudNavLink>
+            </MudNavGroup>
+            <MudNavGroup Title="Lists" Expanded="true">
                 <MudNavLink Href="/media/collections">Collections</MudNavLink>
+                <MudNavLink Href="/media/trakt/lists">Trakt Lists</MudNavLink>
             </MudNavGroup>
             <MudNavLink Href="/schedules">Schedules</MudNavLink>
             <MudNavLink Href="/playouts">Playouts</MudNavLink>