Merge pull request #2772 from barronpm/codecleanup

MediaBrowser.Api code cleanup

31 files changed, 459 insertions, 745 deletions

diff --git a/MediaBrowser.Api/ApiEntryPoint.cs b/MediaBrowser.Api/ApiEntryPoint.cs
index 4bd13df00..6691080bc 100644
--- a/MediaBrowser.Api/ApiEntryPoint.cs
+++ b/MediaBrowser.Api/ApiEntryPoint.cs
@@ -86,12 +86,9 @@ namespace MediaBrowser.Api
                 return Array.Empty<string>();
             }
 
-            if (removeEmpty)
-            {
-                return value.Split(new[] { separator }, StringSplitOptions.RemoveEmptyEntries);
-            }
-
-            return value.Split(separator);
+            return removeEmpty
+                ? value.Split(new[] { separator }, StringSplitOptions.RemoveEmptyEntries)
+                : value.Split(separator);
         }
 
         public SemaphoreSlim GetTranscodingLock(string outputPath)
@@ -258,7 +255,7 @@ namespace MediaBrowser.Api
 
         public void ReportTranscodingProgress(TranscodingJob job, StreamState state, TimeSpan? transcodingPosition, float? framerate, double? percentComplete, long? bytesTranscoded, int? bitRate)
         {
-            var ticks = transcodingPosition.HasValue ? transcodingPosition.Value.Ticks : (long?)null;
+            var ticks = transcodingPosition?.Ticks;
 
             if (job != null)
             {
@@ -487,16 +484,9 @@ namespace MediaBrowser.Api
         /// <returns>Task.</returns>
         internal Task KillTranscodingJobs(string deviceId, string playSessionId, Func<string, bool> deleteFiles)
         {
-            return KillTranscodingJobs(j =>
-            {
-                if (!string.IsNullOrWhiteSpace(playSessionId))
-                {
-                    return string.Equals(playSessionId, j.PlaySessionId, StringComparison.OrdinalIgnoreCase);
-                }
-
-                return string.Equals(deviceId, j.DeviceId, StringComparison.OrdinalIgnoreCase);
-
-            }, deleteFiles);
+            return KillTranscodingJobs(j => string.IsNullOrWhiteSpace(playSessionId)
+                ? string.Equals(deviceId, j.DeviceId, StringComparison.OrdinalIgnoreCase)
+                : string.Equals(playSessionId, j.PlaySessionId, StringComparison.OrdinalIgnoreCase), deleteFiles);
         }
 
         /// <summary>
@@ -561,10 +551,7 @@ namespace MediaBrowser.Api
 
             lock (job.ProcessLock)
             {
-                if (job.TranscodingThrottler != null)
-                {
-                    job.TranscodingThrottler.Stop().GetAwaiter().GetResult();
-                }
+                job.TranscodingThrottler?.Stop().GetAwaiter().GetResult();
 
                 var process = job.Process;
 
diff --git a/MediaBrowser.Api/BaseApiService.cs b/MediaBrowser.Api/BaseApiService.cs
index 112ee8f79..1a1d86362 100644
--- a/MediaBrowser.Api/BaseApiService.cs
+++ b/MediaBrowser.Api/BaseApiService.cs
@@ -58,12 +58,9 @@ namespace MediaBrowser.Api
 
         public static string[] SplitValue(string value, char delim)
         {
-            if (value == null)
-            {
-                return Array.Empty<string>();
-            }
-
-            return value.Split(new[] { delim }, StringSplitOptions.RemoveEmptyEntries);
+            return value == null
+                ? Array.Empty<string>()
+                : value.Split(new[] { delim }, StringSplitOptions.RemoveEmptyEntries);
         }
 
         public static Guid[] GetGuids(string value)
@@ -97,19 +94,10 @@ namespace MediaBrowser.Api
             var authenticatedUser = auth.User;
 
             // If they're going to update the record of another user, they must be an administrator
-            if (!userId.Equals(auth.UserId))
-            {
-                if (!authenticatedUser.Policy.IsAdministrator)
-                {
-                    throw new SecurityException("Unauthorized access.");
-                }
-            }
-            else if (restrictUserPreferences)
+            if ((!userId.Equals(auth.UserId) && !authenticatedUser.Policy.IsAdministrator)
+                || (restrictUserPreferences && !authenticatedUser.Policy.EnableUserPreferenceAccess))
             {
-                if (!authenticatedUser.Policy.EnableUserPreferenceAccess)
-                {
-                    throw new SecurityException("Unauthorized access.");
-                }
+                throw new SecurityException("Unauthorized access.");
             }
         }
 
@@ -138,8 +126,8 @@ namespace MediaBrowser.Api
                 options.Fields = hasFields.GetItemFields();
             }
 
-            if (!options.ContainsField(Model.Querying.ItemFields.RecursiveItemCount)
-                || !options.ContainsField(Model.Querying.ItemFields.ChildCount))
+            if (!options.ContainsField(ItemFields.RecursiveItemCount)
+                || !options.ContainsField(ItemFields.ChildCount))
             {
                 var client = authContext.GetAuthorizationInfo(Request).Client ?? string.Empty;
                 if (client.IndexOf("kodi", StringComparison.OrdinalIgnoreCase) != -1 ||
@@ -150,7 +138,7 @@ namespace MediaBrowser.Api
                     int oldLen = options.Fields.Length;
                     var arr = new ItemFields[oldLen + 1];
                     options.Fields.CopyTo(arr, 0);
-                    arr[oldLen] = Model.Querying.ItemFields.RecursiveItemCount;
+                    arr[oldLen] = ItemFields.RecursiveItemCount;
                     options.Fields = arr;
                 }
 
@@ -166,7 +154,7 @@ namespace MediaBrowser.Api
                     int oldLen = options.Fields.Length;
                     var arr = new ItemFields[oldLen + 1];
                     options.Fields.CopyTo(arr, 0);
-                    arr[oldLen] = Model.Querying.ItemFields.ChildCount;
+                    arr[oldLen] = ItemFields.ChildCount;
                     options.Fields = arr;
                 }
             }
@@ -282,27 +270,21 @@ namespace MediaBrowser.Api
 
             }).OfType<T>().FirstOrDefault();
 
-            if (result == null)
+            result ??= libraryManager.GetItemList(new InternalItemsQuery
             {
-                result = libraryManager.GetItemList(new InternalItemsQuery
-                {
-                    Name = name.Replace(BaseItem.SlugChar, '/'),
-                    IncludeItemTypes = new[] { typeof(T).Name },
-                    DtoOptions = dtoOptions
+                Name = name.Replace(BaseItem.SlugChar, '/'),
+                IncludeItemTypes = new[] { typeof(T).Name },
+                DtoOptions = dtoOptions
 
-                }).OfType<T>().FirstOrDefault();
-            }
+            }).OfType<T>().FirstOrDefault();
 
-            if (result == null)
+            result ??= libraryManager.GetItemList(new InternalItemsQuery
             {
-                result = libraryManager.GetItemList(new InternalItemsQuery
-                {
-                    Name = name.Replace(BaseItem.SlugChar, '?'),
-                    IncludeItemTypes = new[] { typeof(T).Name },
-                    DtoOptions = dtoOptions
+                Name = name.Replace(BaseItem.SlugChar, '?'),
+                IncludeItemTypes = new[] { typeof(T).Name },
+                DtoOptions = dtoOptions
 
-                }).OfType<T>().FirstOrDefault();
-            }
+            }).OfType<T>().FirstOrDefault();
 
             return result;
         }
diff --git a/MediaBrowser.Api/ChannelService.cs b/MediaBrowser.Api/ChannelService.cs
index 6139ba156..fd9b8c396 100644
--- a/MediaBrowser.Api/ChannelService.cs
+++ b/MediaBrowser.Api/ChannelService.cs
@@ -116,12 +116,9 @@ namespace MediaBrowser.Api
         {
             var val = Filters;
 
-            if (string.IsNullOrEmpty(val))
-            {
-                return new ItemFilter[] { };
-            }
-
-            return val.Split(',').Select(v => (ItemFilter)Enum.Parse(typeof(ItemFilter), v, true));
+            return string.IsNullOrEmpty(val)
+                ? Array.Empty<ItemFilter>()
+                : val.Split(',').Select(v => Enum.Parse<ItemFilter>(v, true));
         }
 
         /// <summary>
@@ -173,14 +170,9 @@ namespace MediaBrowser.Api
         /// <returns>IEnumerable{ItemFilter}.</returns>
         public IEnumerable<ItemFilter> GetFilters()
         {
-            var val = Filters;
-
-            if (string.IsNullOrEmpty(val))
-            {
-                return new ItemFilter[] { };
-            }
-
-            return val.Split(',').Select(v => (ItemFilter)Enum.Parse(typeof(ItemFilter), v, true));
+            return string.IsNullOrEmpty(Filters)
+                ? Array.Empty<ItemFilter>()
+                : Filters.Split(',').Select(v => Enum.Parse<ItemFilter>(v, true));
         }
     }
 
@@ -241,7 +233,7 @@ namespace MediaBrowser.Api
             {
                 Limit = request.Limit,
                 StartIndex = request.StartIndex,
-                ChannelIds = new Guid[] { new Guid(request.Id) },
+                ChannelIds = new[] { new Guid(request.Id) },
                 ParentId = string.IsNullOrWhiteSpace(request.FolderId) ? Guid.Empty : new Guid(request.FolderId),
                 OrderBy = request.GetOrderBy(),
                 DtoOptions = new Controller.Dto.DtoOptions
diff --git a/MediaBrowser.Api/Devices/DeviceService.cs b/MediaBrowser.Api/Devices/DeviceService.cs
index 8b63decd2..7004a2559 100644
--- a/MediaBrowser.Api/Devices/DeviceService.cs
+++ b/MediaBrowser.Api/Devices/DeviceService.cs
@@ -155,16 +155,14 @@ namespace MediaBrowser.Api.Devices
                     Id = id
                 });
             }
-            else
+
+            return _deviceManager.AcceptCameraUpload(deviceId, request.RequestStream, new LocalFileInfo
             {
-                return _deviceManager.AcceptCameraUpload(deviceId, request.RequestStream, new LocalFileInfo
-                {
-                    MimeType = Request.ContentType,
-                    Album = album,
-                    Name = name,
-                    Id = id
-                });
-            }
+                MimeType = Request.ContentType,
+                Album = album,
+                Name = name,
+                Id = id
+            });
         }
     }
 }
diff --git a/MediaBrowser.Api/EnvironmentService.cs b/MediaBrowser.Api/EnvironmentService.cs
index 36b03f09c..d199ce154 100644
--- a/MediaBrowser.Api/EnvironmentService.cs
+++ b/MediaBrowser.Api/EnvironmentService.cs
@@ -258,12 +258,7 @@ namespace MediaBrowser.Api
                     return false;
                 }
 
-                if (!request.IncludeDirectories && isDirectory)
-                {
-                    return false;
-                }
-
-                return true;
+                return request.IncludeDirectories || !isDirectory;
             });
 
             return entries.Select(f => new FileSystemEntryInfo
diff --git a/MediaBrowser.Api/FilterService.cs b/MediaBrowser.Api/FilterService.cs
index 25f23bcd1..5eb72cdb1 100644
--- a/MediaBrowser.Api/FilterService.cs
+++ b/MediaBrowser.Api/FilterService.cs
@@ -133,7 +133,7 @@ namespace MediaBrowser.Api
             // Non recursive not yet supported for library folders
             if ((request.Recursive ?? true) || parentItem is UserView || parentItem is ICollectionFolder)
             {
-                genreQuery.AncestorIds = parentItem == null ? Array.Empty<Guid>() : new Guid[] { parentItem.Id };
+                genreQuery.AncestorIds = parentItem == null ? Array.Empty<Guid>() : new[] { parentItem.Id };
             }
             else
             {
@@ -231,7 +231,7 @@ namespace MediaBrowser.Api
                 EnableTotalRecordCount = false,
                 DtoOptions = new Controller.Dto.DtoOptions
                 {
-                    Fields = new ItemFields[] { ItemFields.Genres, ItemFields.Tags },
+                    Fields = new[] { ItemFields.Genres, ItemFields.Tags },
                     EnableImages = false,
                     EnableUserData = false
                 }
diff --git a/MediaBrowser.Api/Images/ImageService.cs b/MediaBrowser.Api/Images/ImageService.cs
index af455987b..e8ea31251 100644
--- a/MediaBrowser.Api/Images/ImageService.cs
+++ b/MediaBrowser.Api/Images/ImageService.cs
@@ -650,7 +650,7 @@ namespace MediaBrowser.Api.Images
             if (!string.IsNullOrWhiteSpace(request.Format)
                 && Enum.TryParse(request.Format, true, out ImageFormat format))
             {
-                return new ImageFormat[] { format };
+                return new[] { format };
             }
 
             return GetClientSupportedFormats();
@@ -743,24 +743,22 @@ namespace MediaBrowser.Api.Images
         /// <returns>Task.</returns>
         public async Task PostImage(BaseItem entity, Stream inputStream, ImageType imageType, string mimeType)
         {
-            using (var reader = new StreamReader(inputStream))
-            {
-                var text = await reader.ReadToEndAsync().ConfigureAwait(false);
+            using var reader = new StreamReader(inputStream);
+            var text = await reader.ReadToEndAsync().ConfigureAwait(false);
 
-                var bytes = Convert.FromBase64String(text);
+            var bytes = Convert.FromBase64String(text);
 
-                var memoryStream = new MemoryStream(bytes)
-                {
-                    Position = 0
-                };
+            var memoryStream = new MemoryStream(bytes)
+            {
+                Position = 0
+            };
 
-                // Handle image/png; charset=utf-8
-                mimeType = mimeType.Split(';').FirstOrDefault();
+            // Handle image/png; charset=utf-8
+            mimeType = mimeType.Split(';').FirstOrDefault();
 
-                await _providerManager.SaveImage(entity, memoryStream, mimeType, imageType, null, CancellationToken.None).ConfigureAwait(false);
+            await _providerManager.SaveImage(entity, memoryStream, mimeType, imageType, null, CancellationToken.None).ConfigureAwait(false);
 
-                entity.UpdateToRepository(ItemUpdateType.ImageUpdate, CancellationToken.None);
-            }
+            entity.UpdateToRepository(ItemUpdateType.ImageUpdate, CancellationToken.None);
         }
     }
 }
diff --git a/MediaBrowser.Api/Images/RemoteImageService.cs b/MediaBrowser.Api/Images/RemoteImageService.cs
index f03f5efd8..222bb34d3 100644
--- a/MediaBrowser.Api/Images/RemoteImageService.cs
+++ b/MediaBrowser.Api/Images/RemoteImageService.cs
@@ -261,27 +261,25 @@ namespace MediaBrowser.Api.Images
         /// <returns>Task.</returns>
         private async Task DownloadImage(string url, Guid urlHash, string pointerCachePath)
         {
-            using (var result = await _httpClient.GetResponse(new HttpRequestOptions
+            using var result = await _httpClient.GetResponse(new HttpRequestOptions
             {
                 Url = url,
                 BufferContent = false
 
-            }).ConfigureAwait(false))
-            {
-                var ext = result.ContentType.Split('/').Last();
-
-                var fullCachePath = GetFullCachePath(urlHash + "." + ext);
+            }).ConfigureAwait(false);
+            var ext = result.ContentType.Split('/').Last();
 
-                Directory.CreateDirectory(Path.GetDirectoryName(fullCachePath));
-                using (var stream = result.Content)
-                using (var filestream = new FileStream(fullCachePath, FileMode.Create, FileAccess.Write, FileShare.Read, IODefaults.FileStreamBufferSize, true))
-                {
-                    await stream.CopyToAsync(filestream).ConfigureAwait(false);
-                }
+            var fullCachePath = GetFullCachePath(urlHash + "." + ext);
 
-                Directory.CreateDirectory(Path.GetDirectoryName(pointerCachePath));
-                File.WriteAllText(pointerCachePath, fullCachePath);
+            Directory.CreateDirectory(Path.GetDirectoryName(fullCachePath));
+            using (var stream = result.Content)
+            {
+                using var filestream = new FileStream(fullCachePath, FileMode.Create, FileAccess.Write, FileShare.Read, IODefaults.FileStreamBufferSize, true);
+                await stream.CopyToAsync(filestream).ConfigureAwait(false);
             }
+
+            Directory.CreateDirectory(Path.GetDirectoryName(pointerCachePath));
+            File.WriteAllText(pointerCachePath, fullCachePath);
         }
 
         /// <summary>
diff --git a/MediaBrowser.Api/ItemLookupService.cs b/MediaBrowser.Api/ItemLookupService.cs
index a76369a15..0bbe7e1cf 100644
--- a/MediaBrowser.Api/ItemLookupService.cs
+++ b/MediaBrowser.Api/ItemLookupService.cs
@@ -305,9 +305,16 @@ namespace MediaBrowser.Api
 
             Directory.CreateDirectory(Path.GetDirectoryName(fullCachePath));
             using (var stream = result.Content)
-            using (var filestream = new FileStream(fullCachePath, FileMode.Create, FileAccess.Write, FileShare.Read, IODefaults.FileStreamBufferSize, true))
             {
-                await stream.CopyToAsync(filestream).ConfigureAwait(false);
+                using var fileStream = new FileStream(
+                    fullCachePath,
+                    FileMode.Create,
+                    FileAccess.Write,
+                    FileShare.Read,
+                    IODefaults.FileStreamBufferSize,
+                    true);
+
+                await stream.CopyToAsync(fileStream).ConfigureAwait(false);
             }
 
             Directory.CreateDirectory(Path.GetDirectoryName(pointerCachePath));
diff --git a/MediaBrowser.Api/ItemUpdateService.cs b/MediaBrowser.Api/ItemUpdateService.cs
index c81e89ca3..2db6d717a 100644
--- a/MediaBrowser.Api/ItemUpdateService.cs
+++ b/MediaBrowser.Api/ItemUpdateService.cs
@@ -263,8 +263,7 @@ namespace MediaBrowser.Api
             item.Overview = request.Overview;
             item.Genres = request.Genres;
 
-            var episode = item as Episode;
-            if (episode != null)
+            if (item is Episode episode)
             {
                 episode.AirsAfterSeasonNumber = request.AirsAfterSeasonNumber;
                 episode.AirsBeforeEpisodeNumber = request.AirsBeforeEpisodeNumber;
@@ -302,14 +301,12 @@ namespace MediaBrowser.Api
             item.PreferredMetadataCountryCode = request.PreferredMetadataCountryCode;
             item.PreferredMetadataLanguage = request.PreferredMetadataLanguage;
 
-            var hasDisplayOrder = item as IHasDisplayOrder;
-            if (hasDisplayOrder != null)
+            if (item is IHasDisplayOrder hasDisplayOrder)
             {
                 hasDisplayOrder.DisplayOrder = request.DisplayOrder;
             }
 
-            var hasAspectRatio = item as IHasAspectRatio;
-            if (hasAspectRatio != null)
+            if (item is IHasAspectRatio hasAspectRatio)
             {
                 hasAspectRatio.AspectRatio = request.AspectRatio;
             }
@@ -337,16 +334,14 @@ namespace MediaBrowser.Api
 
             item.ProviderIds = request.ProviderIds;
 
-            var video = item as Video;
-            if (video != null)
+            if (item is Video video)
             {
                 video.Video3DFormat = request.Video3DFormat;
             }
 
             if (request.AlbumArtists != null)
             {
-                var hasAlbumArtists = item as IHasAlbumArtist;
-                if (hasAlbumArtists != null)
+                if (item is IHasAlbumArtist hasAlbumArtists)
                 {
                     hasAlbumArtists.AlbumArtists = request
                         .AlbumArtists
@@ -357,8 +352,7 @@ namespace MediaBrowser.Api
 
             if (request.ArtistItems != null)
             {
-                var hasArtists = item as IHasArtist;
-                if (hasArtists != null)
+                if (item is IHasArtist hasArtists)
                 {
                     hasArtists.Artists = request
                         .ArtistItems
@@ -367,20 +361,17 @@ namespace MediaBrowser.Api
                 }
             }
 
-            var song = item as Audio;
-            if (song != null)
+            if (item is Audio song)
             {
                 song.Album = request.Album;
             }
 
-            var musicVideo = item as MusicVideo;
-            if (musicVideo != null)
+            if (item is MusicVideo musicVideo)
             {
                 musicVideo.Album = request.Album;
             }
 
-            var series = item as Series;
-            if (series != null)
+            if (item is Series series)
             {
                 series.Status = GetSeriesStatus(request);
 
@@ -400,7 +391,6 @@ namespace MediaBrowser.Api
             }
 
             return (SeriesStatus)Enum.Parse(typeof(SeriesStatus), item.Status, true);
-
         }
     }
 }
diff --git a/MediaBrowser.Api/Library/LibraryService.cs b/MediaBrowser.Api/Library/LibraryService.cs
index 15284958d..a54640b2f 100644
--- a/MediaBrowser.Api/Library/LibraryService.cs
+++ b/MediaBrowser.Api/Library/LibraryService.cs
@@ -348,28 +348,19 @@ namespace MediaBrowser.Api.Library
 
         private string[] GetRepresentativeItemTypes(string contentType)
         {
-            switch (contentType)
+            return contentType switch
             {
-                case CollectionType.BoxSets:
-                    return new string[] { "BoxSet" };
-                case CollectionType.Playlists:
-                    return new string[] { "Playlist" };
-                case CollectionType.Movies:
-                    return new string[] { "Movie" };
-                case CollectionType.TvShows:
-                    return new string[] { "Series", "Season", "Episode" };
-                case CollectionType.Books:
-                    return new string[] { "Book" };
-                case CollectionType.Music:
-                    return new string[] { "MusicAlbum", "MusicArtist", "Audio", "MusicVideo" };
-                case CollectionType.HomeVideos:
-                case CollectionType.Photos:
-                    return new string[] { "Video", "Photo" };
-                case CollectionType.MusicVideos:
-                    return new string[] { "MusicVideo" };
-                default:
-                    return new string[] { "Series", "Season", "Episode", "Movie" };
-            }
+                CollectionType.BoxSets => new[] {"BoxSet"},
+                CollectionType.Playlists => new[] {"Playlist"},
+                CollectionType.Movies => new[] {"Movie"},
+                CollectionType.TvShows => new[] {"Series", "Season", "Episode"},
+                CollectionType.Books => new[] {"Book"},
+                CollectionType.Music => new[] {"MusicAlbum", "MusicArtist", "Audio", "MusicVideo"},
+                CollectionType.HomeVideos => new[] {"Video", "Photo"},
+                CollectionType.Photos => new[] {"Video", "Photo"},
+                CollectionType.MusicVideos => new[] {"MusicVideo"},
+                _ => new[] {"Series", "Season", "Episode", "Movie"}
+            };
         }
 
         private bool IsSaverEnabledByDefault(string name, string[] itemTypes, bool isNewLibrary)
@@ -397,54 +388,22 @@ namespace MediaBrowser.Api.Library
             {
                 if (string.Equals(name, "TheMovieDb", StringComparison.OrdinalIgnoreCase))
                 {
-                    if (string.Equals(type, "Series", StringComparison.OrdinalIgnoreCase))
-                    {
-                        return true;
-                    }
-                    if (string.Equals(type, "Season", StringComparison.OrdinalIgnoreCase))
-                    {
-                        return false;
-                    }
-                    if (string.Equals(type, "Episode", StringComparison.OrdinalIgnoreCase))
-                    {
-                        return false;
-                    }
-                    if (string.Equals(type, "MusicVideo", StringComparison.OrdinalIgnoreCase))
-                    {
-                        return false;
-                    }
-                    return true;
-                }
-                else if (string.Equals(name, "TheTVDB", StringComparison.OrdinalIgnoreCase))
-                {
-                    return true;
-                }
-                else if (string.Equals(name, "The Open Movie Database", StringComparison.OrdinalIgnoreCase))
-                {
-                    return false;
-                }
-                else if (string.Equals(name, "TheAudioDB", StringComparison.OrdinalIgnoreCase))
-                {
-                    return true;
-                }
-                else if (string.Equals(name, "MusicBrainz", StringComparison.OrdinalIgnoreCase))
-                {
-                    return true;
+                    return !(string.Equals(type, "Season", StringComparison.OrdinalIgnoreCase)
+                         || string.Equals(type, "Episode", StringComparison.OrdinalIgnoreCase)
+                         || string.Equals(type, "MusicVideo", StringComparison.OrdinalIgnoreCase));
                 }
 
-                return false;
+                return string.Equals(name, "TheTVDB", StringComparison.OrdinalIgnoreCase)
+                   || string.Equals(name, "TheAudioDB", StringComparison.OrdinalIgnoreCase)
+                   || string.Equals(name, "MusicBrainz", StringComparison.OrdinalIgnoreCase);
             }
 
             var metadataOptions = ServerConfigurationManager.Configuration.MetadataOptions
                 .Where(i => string.Equals(i.ItemType, type, StringComparison.OrdinalIgnoreCase))
                 .ToArray();
 
-            if (metadataOptions.Length == 0)
-            {
-                return true;
-            }
-
-            return metadataOptions.Any(i => !i.DisabledMetadataFetchers.Contains(name, StringComparer.OrdinalIgnoreCase));
+            return metadataOptions.Length == 0
+               || metadataOptions.Any(i => !i.DisabledMetadataFetchers.Contains(name, StringComparer.OrdinalIgnoreCase));
         }
 
         private bool IsImageFetcherEnabledByDefault(string name, string type, bool isNewLibrary)
@@ -453,50 +412,17 @@ namespace MediaBrowser.Api.Library
             {
                 if (string.Equals(name, "TheMovieDb", StringComparison.OrdinalIgnoreCase))
                 {
-                    if (string.Equals(type, "Series", StringComparison.OrdinalIgnoreCase))
-                    {
-                        return false;
-                    }
-                    if (string.Equals(type, "Season", StringComparison.OrdinalIgnoreCase))
-                    {
-                        return false;
-                    }
-                    if (string.Equals(type, "Episode", StringComparison.OrdinalIgnoreCase))
-                    {
-                        return false;
-                    }
-                    if (string.Equals(type, "MusicVideo", StringComparison.OrdinalIgnoreCase))
-                    {
-                        return false;
-                    }
-                    return true;
-                }
-                else if (string.Equals(name, "TheTVDB", StringComparison.OrdinalIgnoreCase))
-                {
-                    return true;
-                }
-                else if (string.Equals(name, "The Open Movie Database", StringComparison.OrdinalIgnoreCase))
-                {
-                    return false;
-                }
-                else if (string.Equals(name, "TheAudioDB", StringComparison.OrdinalIgnoreCase))
-                {
-                    return true;
-                }
-                else if (string.Equals(name, "Emby Designs", StringComparison.OrdinalIgnoreCase))
-                {
-                    return true;
-                }
-                else if (string.Equals(name, "Screen Grabber", StringComparison.OrdinalIgnoreCase))
-                {
-                    return true;
-                }
-                else if (string.Equals(name, "Image Extractor", StringComparison.OrdinalIgnoreCase))
-                {
-                    return true;
+                    return !string.Equals(type, "Series", StringComparison.OrdinalIgnoreCase)
+                           && !string.Equals(type, "Season", StringComparison.OrdinalIgnoreCase)
+                           && !string.Equals(type, "Episode", StringComparison.OrdinalIgnoreCase)
+                           && !string.Equals(type, "MusicVideo", StringComparison.OrdinalIgnoreCase);
                 }
 
-                return false;
+                return string.Equals(name, "TheTVDB", StringComparison.OrdinalIgnoreCase)
+                       || string.Equals(name, "Screen Grabber", StringComparison.OrdinalIgnoreCase)
+                       || string.Equals(name, "TheAudioDB", StringComparison.OrdinalIgnoreCase)
+                       || string.Equals(name, "Emby Designs", StringComparison.OrdinalIgnoreCase)
+                       || string.Equals(name, "Image Extractor", StringComparison.OrdinalIgnoreCase);
             }
 
             var metadataOptions = ServerConfigurationManager.Configuration.MetadataOptions
@@ -561,8 +487,7 @@ namespace MediaBrowser.Api.Library
 
             foreach (var type in types)
             {
-                ImageOption[] defaultImageOptions = null;
-                TypeOptions.DefaultImageOptions.TryGetValue(type, out defaultImageOptions);
+                TypeOptions.DefaultImageOptions.TryGetValue(type, out var defaultImageOptions);
 
                 typeOptions.Add(new LibraryTypeOptions
                 {
@@ -609,8 +534,6 @@ namespace MediaBrowser.Api.Library
 
         public object Get(GetSimilarItems request)
         {
-            var user = !request.UserId.Equals(Guid.Empty) ? _userManager.GetUserById(request.UserId) : null;
-
             var item = string.IsNullOrEmpty(request.Id) ?
                 (!request.UserId.Equals(Guid.Empty) ? _libraryManager.GetUserRootFolder() :
                 _libraryManager.RootFolder) : _libraryManager.GetItemById(request.Id);
@@ -668,7 +591,7 @@ namespace MediaBrowser.Api.Library
             // ExcludeArtistIds
             if (!string.IsNullOrEmpty(request.ExcludeArtistIds))
             {
-                query.ExcludeArtistIds = BaseApiService.GetGuids(request.ExcludeArtistIds);
+                query.ExcludeArtistIds = GetGuids(request.ExcludeArtistIds);
             }
 
             List<BaseItem> itemsResult;
@@ -689,7 +612,6 @@ namespace MediaBrowser.Api.Library
             var result = new QueryResult<BaseItemDto>
             {
                 Items = returnList,
-
                 TotalRecordCount = itemsResult.Count
             };
 
@@ -919,12 +841,10 @@ namespace MediaBrowser.Api.Library
 
         private BaseItem TranslateParentItem(BaseItem item, User user)
         {
-            if (item.GetParent() is AggregateFolder)
-            {
-                return _libraryManager.GetUserRootFolder().GetChildren(user, true).FirstOrDefault(i => i.PhysicalLocations.Contains(item.Path));
-            }
-
-            return item;
+            return item.GetParent() is AggregateFolder
+                ? _libraryManager.GetUserRootFolder().GetChildren(user, true)
+                    .FirstOrDefault(i => i.PhysicalLocations.Contains(item.Path))
+                : item;
         }
 
         /// <summary>
@@ -1086,7 +1006,7 @@ namespace MediaBrowser.Api.Library
             var item = string.IsNullOrEmpty(request.Id)
                            ? (!request.UserId.Equals(Guid.Empty)
                                   ? _libraryManager.GetUserRootFolder()
-                                  : (Folder)_libraryManager.RootFolder)
+                                  : _libraryManager.RootFolder)
                            : _libraryManager.GetItemById(request.Id);
 
             if (item == null)
@@ -1094,18 +1014,13 @@ namespace MediaBrowser.Api.Library
                 throw new ResourceNotFoundException("Item not found.");
             }
 
-            BaseItem[] themeItems = Array.Empty<BaseItem>();
+            IEnumerable<BaseItem> themeItems;
 
             while (true)
             {
-                themeItems = item.GetThemeSongs().ToArray();
-
-                if (themeItems.Length > 0)
-                {
-                    break;
-                }
+                themeItems = item.GetThemeSongs();
 
-                if (!request.InheritFromParent)
+                if (themeItems.Any() || !request.InheritFromParent)
                 {
                     break;
                 }
@@ -1119,11 +1034,9 @@ namespace MediaBrowser.Api.Library
             }
 
             var dtoOptions = GetDtoOptions(_authContext, request);
-
-            var dtos = themeItems
-                            .Select(i => _dtoService.GetBaseItemDto(i, dtoOptions, user, item));
-
-            var items = dtos.ToArray();
+            var items = themeItems
+                .Select(i => _dtoService.GetBaseItemDto(i, dtoOptions, user, item))
+                .ToArray();
 
             return new ThemeMediaResult
             {
@@ -1140,9 +1053,7 @@ namespace MediaBrowser.Api.Library
         /// <returns>System.Object.</returns>
         public object Get(GetThemeVideos request)
         {
-            var result = GetThemeVideos(request);
-
-            return ToOptimizedResult(result);
+            return ToOptimizedResult(GetThemeVideos(request));
         }
 
         public ThemeMediaResult GetThemeVideos(GetThemeVideos request)
@@ -1152,7 +1063,7 @@ namespace MediaBrowser.Api.Library
             var item = string.IsNullOrEmpty(request.Id)
                            ? (!request.UserId.Equals(Guid.Empty)
                                   ? _libraryManager.GetUserRootFolder()
-                                  : (Folder)_libraryManager.RootFolder)
+                                  : _libraryManager.RootFolder)
                            : _libraryManager.GetItemById(request.Id);
 
             if (item == null)
@@ -1160,18 +1071,13 @@ namespace MediaBrowser.Api.Library
                 throw new ResourceNotFoundException("Item not found.");
             }
 
-            BaseItem[] themeItems = Array.Empty<BaseItem>();
+            IEnumerable<BaseItem> themeItems;
 
             while (true)
             {
-                themeItems = item.GetThemeVideos().ToArray();
-
-                if (themeItems.Length > 0)
-                {
-                    break;
-                }
+                themeItems = item.GetThemeVideos();
 
-                if (!request.InheritFromParent)
+                if (themeItems.Any() || !request.InheritFromParent)
                 {
                     break;
                 }
@@ -1186,10 +1092,9 @@ namespace MediaBrowser.Api.Library
 
             var dtoOptions = GetDtoOptions(_authContext, request);
 
-            var dtos = themeItems
-                            .Select(i => _dtoService.GetBaseItemDto(i, dtoOptions, user, item));
-
-            var items = dtos.ToArray();
+            var items = themeItems
+                .Select(i => _dtoService.GetBaseItemDto(i, dtoOptions, user, item))
+                .ToArray();
 
             return new ThemeMediaResult
             {
diff --git a/MediaBrowser.Api/Library/LibraryStructureService.cs b/MediaBrowser.Api/Library/LibraryStructureService.cs
index c071b42f7..1e300814f 100644
--- a/MediaBrowser.Api/Library/LibraryStructureService.cs
+++ b/MediaBrowser.Api/Library/LibraryStructureService.cs
@@ -327,15 +327,11 @@ namespace MediaBrowser.Api.Library
 
             try
             {
-                var mediaPath = request.PathInfo;
-
-                if (mediaPath == null)
+                var mediaPath = request.PathInfo ?? new MediaPathInfo
                 {
-                    mediaPath = new MediaPathInfo
-                    {
-                        Path = request.Path
-                    };
-                }
+                    Path = request.Path
+                };
+
                 _libraryManager.AddMediaPath(request.Name, mediaPath);
             }
             finally
diff --git a/MediaBrowser.Api/LiveTv/LiveTvService.cs b/MediaBrowser.Api/LiveTv/LiveTvService.cs
index 4b4496139..5fe4c0cca 100644
--- a/MediaBrowser.Api/LiveTv/LiveTvService.cs
+++ b/MediaBrowser.Api/LiveTv/LiveTvService.cs
@@ -885,11 +885,10 @@ namespace MediaBrowser.Api.LiveTv
         {
             // SchedulesDirect requires a SHA1 hash of the user's password
             // https://github.com/SchedulesDirect/JSON-Service/wiki/API-20141201#obtain-a-token
-            using (SHA1 sha = SHA1.Create())
-            {
-                return Hex.Encode(
-                    sha.ComputeHash(Encoding.UTF8.GetBytes(str)));
-            }
+            using SHA1 sha = SHA1.Create();
+
+            return Hex.Encode(
+                sha.ComputeHash(Encoding.UTF8.GetBytes(str)));
         }
 
         public void Delete(DeleteListingProvider request)
@@ -1050,8 +1049,7 @@ namespace MediaBrowser.Api.LiveTv
             {
                 query.IsSeries = true;
 
-                var series = _libraryManager.GetItemById(request.LibrarySeriesId) as Series;
-                if (series != null)
+                if (_libraryManager.GetItemById(request.LibrarySeriesId) is Series series)
                 {
                     query.Name = series.Name;
                 }
diff --git a/MediaBrowser.Api/Movies/MoviesService.cs b/MediaBrowser.Api/Movies/MoviesService.cs
index 889ebc928..46da8b909 100644
--- a/MediaBrowser.Api/Movies/MoviesService.cs
+++ b/MediaBrowser.Api/Movies/MoviesService.cs
@@ -394,7 +394,7 @@ namespace MediaBrowser.Api.Movies
         {
             var people = _libraryManager.GetPeople(new InternalPeopleQuery
             {
-                PersonTypes = new string[]
+                PersonTypes = new[]
                 {
                     PersonType.Director
                 }
diff --git a/MediaBrowser.Api/Playback/BaseStreamingService.cs b/MediaBrowser.Api/Playback/BaseStreamingService.cs
index 5029ce0bb..eb44cb426 100644
--- a/MediaBrowser.Api/Playback/BaseStreamingService.cs
+++ b/MediaBrowser.Api/Playback/BaseStreamingService.cs
@@ -137,12 +137,9 @@ namespace MediaBrowser.Api.Playback
             var ext = outputFileExtension.ToLowerInvariant();
             var folder = ServerConfigurationManager.GetTranscodePath();
 
-            if (EnableOutputInSubFolder)
-            {
-                return Path.Combine(folder, filename, filename + ext);
-            }
-
-            return Path.Combine(folder, filename + ext);
+            return EnableOutputInSubFolder
+                ? Path.Combine(folder, filename, filename + ext)
+                : Path.Combine(folder, filename + ext);
         }
 
         protected virtual string GetDefaultEncoderPreset()
@@ -248,14 +245,8 @@ namespace MediaBrowser.Api.Playback
             if (state.VideoRequest != null
                 && string.Equals(state.OutputVideoCodec, "copy", StringComparison.OrdinalIgnoreCase))
             {
-                if (string.Equals(state.OutputAudioCodec, "copy", StringComparison.OrdinalIgnoreCase))
-                {
-                    logFilePrefix = "ffmpeg-remux";
-                }
-                else
-                {
-                    logFilePrefix = "ffmpeg-directstream";
-                }
+                logFilePrefix = string.Equals(state.OutputAudioCodec, "copy", StringComparison.OrdinalIgnoreCase)
+                    ? "ffmpeg-remux" : "ffmpeg-directstream";
             }
 
             var logFilePath = Path.Combine(ServerConfigurationManager.ApplicationPaths.LogDirectoryPath, logFilePrefix + "-" + Guid.NewGuid() + ".txt");
@@ -389,195 +380,181 @@ namespace MediaBrowser.Api.Playback
                     continue;
                 }
 
-                if (i == 0)
-                {
-                    request.DeviceProfileId = val;
-                }
-                else if (i == 1)
-                {
-                    request.DeviceId = val;
-                }
-                else if (i == 2)
-                {
-                    request.MediaSourceId = val;
-                }
-                else if (i == 3)
-                {
-                    request.Static = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
-                }
-                else if (i == 4)
-                {
-                    if (videoRequest != null)
-                    {
-                        videoRequest.VideoCodec = val;
-                    }
-                }
-                else if (i == 5)
-                {
-                    request.AudioCodec = val;
-                }
-                else if (i == 6)
-                {
-                    if (videoRequest != null)
-                    {
-                        videoRequest.AudioStreamIndex = int.Parse(val, CultureInfo.InvariantCulture);
-                    }
-                }
-                else if (i == 7)
-                {
-                    if (videoRequest != null)
-                    {
-                        videoRequest.SubtitleStreamIndex = int.Parse(val, CultureInfo.InvariantCulture);
-                    }
-                }
-                else if (i == 8)
-                {
-                    if (videoRequest != null)
-                    {
-                        videoRequest.VideoBitRate = int.Parse(val, CultureInfo.InvariantCulture);
-                    }
-                }
-                else if (i == 9)
-                {
-                    request.AudioBitRate = int.Parse(val, CultureInfo.InvariantCulture);
-                }
-                else if (i == 10)
-                {
-                    request.MaxAudioChannels = int.Parse(val, CultureInfo.InvariantCulture);
-                }
-                else if (i == 11)
-                {
-                    if (videoRequest != null)
-                    {
-                        videoRequest.MaxFramerate = float.Parse(val, CultureInfo.InvariantCulture);
-                    }
-                }
-                else if (i == 12)
-                {
-                    if (videoRequest != null)
-                    {
-                        videoRequest.MaxWidth = int.Parse(val, CultureInfo.InvariantCulture);
-                    }
-                }
-                else if (i == 13)
-                {
-                    if (videoRequest != null)
-                    {
-                        videoRequest.MaxHeight = int.Parse(val, CultureInfo.InvariantCulture);
-                    }
-                }
-                else if (i == 14)
-                {
-                    request.StartTimeTicks = long.Parse(val, CultureInfo.InvariantCulture);
-                }
-                else if (i == 15)
-                {
-                    if (videoRequest != null)
-                    {
-                        videoRequest.Level = val;
-                    }
-                }
-                else if (i == 16)
-                {
-                    if (videoRequest != null)
-                    {
-                        videoRequest.MaxRefFrames = int.Parse(val, CultureInfo.InvariantCulture);
-                    }
-                }
-                else if (i == 17)
-                {
-                    if (videoRequest != null)
-                    {
-                        videoRequest.MaxVideoBitDepth = int.Parse(val, CultureInfo.InvariantCulture);
-                    }
-                }
-                else if (i == 18)
-                {
-                    if (videoRequest != null)
-                    {
-                        videoRequest.Profile = val;
-                    }
-                }
-                else if (i == 19)
-                {
-                    // cabac no longer used
-                }
-                else if (i == 20)
-                {
-                    request.PlaySessionId = val;
-                }
-                else if (i == 21)
-                {
-                    // api_key
-                }
-                else if (i == 22)
-                {
-                    request.LiveStreamId = val;
-                }
-                else if (i == 23)
-                {
-                    // Duplicating ItemId because of MediaMonkey
-                }
-                else if (i == 24)
-                {
-                    if (videoRequest != null)
-                    {
-                        videoRequest.CopyTimestamps = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
-                    }
-                }
-                else if (i == 25)
-                {
-                    if (!string.IsNullOrWhiteSpace(val) && videoRequest != null)
-                    {
-                        if (Enum.TryParse(val, out SubtitleDeliveryMethod method))
+                switch (i)
+                {
+                    case 0:
+                        request.DeviceProfileId = val;
+                        break;
+                    case 1:
+                        request.DeviceId = val;
+                        break;
+                    case 2:
+                        request.MediaSourceId = val;
+                        break;
+                    case 3:
+                        request.Static = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
+                        break;
+                    case 4:
+                        if (videoRequest != null)
                         {
-                            videoRequest.SubtitleMethod = method;
+                            videoRequest.VideoCodec = val;
                         }
-                    }
-                }
-                else if (i == 26)
-                {
-                    request.TranscodingMaxAudioChannels = int.Parse(val, CultureInfo.InvariantCulture);
-                }
-                else if (i == 27)
-                {
-                    if (videoRequest != null)
-                    {
-                        videoRequest.EnableSubtitlesInManifest = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
-                    }
-                }
-                else if (i == 28)
-                {
-                    request.Tag = val;
-                }
-                else if (i == 29)
-                {
-                    if (videoRequest != null)
-                    {
-                        videoRequest.RequireAvc = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
-                    }
-                }
-                else if (i == 30)
-                {
-                    request.SubtitleCodec = val;
-                }
-                else if (i == 31)
-                {
-                    if (videoRequest != null)
-                    {
-                        videoRequest.RequireNonAnamorphic = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
-                    }
-                }
-                else if (i == 32)
-                {
-                    if (videoRequest != null)
-                    {
-                        videoRequest.DeInterlace = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
-                    }
-                }
-                else if (i == 33)
-                {
-                    request.TranscodeReasons = val;
+
+                        break;
+                    case 5:
+                        request.AudioCodec = val;
+                        break;
+                    case 6:
+                        if (videoRequest != null)
+                        {
+                            videoRequest.AudioStreamIndex = int.Parse(val, CultureInfo.InvariantCulture);
+                        }
+
+                        break;
+                    case 7:
+                        if (videoRequest != null)
+                        {
+                            videoRequest.SubtitleStreamIndex = int.Parse(val, CultureInfo.InvariantCulture);
+                        }
+
+                        break;
+                    case 8:
+                        if (videoRequest != null)
+                        {
+                            videoRequest.VideoBitRate = int.Parse(val, CultureInfo.InvariantCulture);
+                        }
+
+                        break;
+                    case 9:
+                        request.AudioBitRate = int.Parse(val, CultureInfo.InvariantCulture);
+                        break;
+                    case 10:
+                        request.MaxAudioChannels = int.Parse(val, CultureInfo.InvariantCulture);
+                        break;
+                    case 11:
+                        if (videoRequest != null)
+                        {
+                            videoRequest.MaxFramerate = float.Parse(val, CultureInfo.InvariantCulture);
+                        }
+
+                        break;
+                    case 12:
+                        if (videoRequest != null)
+                        {
+                            videoRequest.MaxWidth = int.Parse(val, CultureInfo.InvariantCulture);
+                        }
+
+                        break;
+                    case 13:
+                        if (videoRequest != null)
+                        {
+                            videoRequest.MaxHeight = int.Parse(val, CultureInfo.InvariantCulture);
+                        }
+
+                        break;
+                    case 14:
+                        request.StartTimeTicks = long.Parse(val, CultureInfo.InvariantCulture);
+                        break;
+                    case 15:
+                        if (videoRequest != null)
+                        {
+                            videoRequest.Level = val;
+                        }
+
+                        break;
+                    case 16:
+                        if (videoRequest != null)
+                        {
+                            videoRequest.MaxRefFrames = int.Parse(val, CultureInfo.InvariantCulture);
+                        }
+
+                        break;
+                    case 17:
+                        if (videoRequest != null)
+                        {
+                            videoRequest.MaxVideoBitDepth = int.Parse(val, CultureInfo.InvariantCulture);
+                        }
+
+                        break;
+                    case 18:
+                        if (videoRequest != null)
+                        {
+                            videoRequest.Profile = val;
+                        }
+
+                        break;
+                    case 19:
+                        // cabac no longer used
+                        break;
+                    case 20:
+                        request.PlaySessionId = val;
+                        break;
+                    case 21:
+                        // api_key
+                        break;
+                    case 22:
+                        request.LiveStreamId = val;
+                        break;
+                    case 23:
+                        // Duplicating ItemId because of MediaMonkey
+                        break;
+                    case 24:
+                        if (videoRequest != null)
+                        {
+                            videoRequest.CopyTimestamps = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
+                        }
+
+                        break;
+                    case 25:
+                        if (!string.IsNullOrWhiteSpace(val) && videoRequest != null)
+                        {
+                            if (Enum.TryParse(val, out SubtitleDeliveryMethod method))
+                            {
+                                videoRequest.SubtitleMethod = method;
+                            }
+                        }
+
+                        break;
+                    case 26:
+                        request.TranscodingMaxAudioChannels = int.Parse(val, CultureInfo.InvariantCulture);
+                        break;
+                    case 27:
+                        if (videoRequest != null)
+                        {
+                            videoRequest.EnableSubtitlesInManifest = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
+                        }
+
+                        break;
+                    case 28:
+                        request.Tag = val;
+                        break;
+                    case 29:
+                        if (videoRequest != null)
+                        {
+                            videoRequest.RequireAvc = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
+                        }
+
+                        break;
+                    case 30:
+                        request.SubtitleCodec = val;
+                        break;
+                    case 31:
+                        if (videoRequest != null)
+                        {
+                            videoRequest.RequireNonAnamorphic = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
+                        }
+
+                        break;
+                    case 32:
+                        if (videoRequest != null)
+                        {
+                            videoRequest.DeInterlace = string.Equals("true", val, StringComparison.OrdinalIgnoreCase);
+                        }
+
+                        break;
+                    case 33:
+                        request.TranscodeReasons = val;
+                        break;
                 }
             }
         }
@@ -630,14 +607,9 @@ namespace MediaBrowser.Api.Playback
                 throw new ArgumentException("Invalid timeseek header");
             }
             int index = value.IndexOf('-');
-            if (index == -1)
-            {
-                value = value.Substring(Npt.Length);
-            }
-            else
-            {
-                value = value.Substring(Npt.Length, index - Npt.Length);
-            }
+            value = index == -1
+                ? value.Substring(Npt.Length)
+                : value.Substring(Npt.Length, index - Npt.Length);
 
             if (value.IndexOf(':') == -1)
             {
@@ -856,21 +828,11 @@ namespace MediaBrowser.Api.Playback
             {
                 state.DeviceProfile = DlnaManager.GetProfile(state.Request.DeviceProfileId);
             }
-            else
+            else if (!string.IsNullOrWhiteSpace(state.Request.DeviceId))
             {
-                if (!string.IsNullOrWhiteSpace(state.Request.DeviceId))
-                {
-                    var caps = DeviceManager.GetCapabilities(state.Request.DeviceId);
+                var caps = DeviceManager.GetCapabilities(state.Request.DeviceId);
 
-                    if (caps != null)
-                    {
-                        state.DeviceProfile = caps.DeviceProfile;
-                    }
-                    else
-                    {
-                        state.DeviceProfile = DlnaManager.GetProfile(headers);
-                    }
-                }
+                state.DeviceProfile = caps == null ? DlnaManager.GetProfile(headers) : caps.DeviceProfile;
             }
 
             var profile = state.DeviceProfile;
diff --git a/MediaBrowser.Api/Playback/Hls/BaseHlsService.cs b/MediaBrowser.Api/Playback/Hls/BaseHlsService.cs
index 0cbfe4bdf..52962366c 100644
--- a/MediaBrowser.Api/Playback/Hls/BaseHlsService.cs
+++ b/MediaBrowser.Api/Playback/Hls/BaseHlsService.cs
@@ -140,7 +140,7 @@ namespace MediaBrowser.Api.Playback.Hls
 
             if (isLive)
             {
-                job = job ?? ApiEntryPoint.Instance.OnTranscodeBeginRequest(playlist, TranscodingJobType);
+                job ??= ApiEntryPoint.Instance.OnTranscodeBeginRequest(playlist, TranscodingJobType);
 
                 if (job != null)
                 {
@@ -156,7 +156,7 @@ namespace MediaBrowser.Api.Playback.Hls
 
             var playlistText = GetMasterPlaylistFileText(playlist, videoBitrate + audioBitrate, baselineStreamBitrate);
 
-            job = job ?? ApiEntryPoint.Instance.OnTranscodeBeginRequest(playlist, TranscodingJobType);
+            job ??= ApiEntryPoint.Instance.OnTranscodeBeginRequest(playlist, TranscodingJobType);
 
             if (job != null)
             {
@@ -168,22 +168,19 @@ namespace MediaBrowser.Api.Playback.Hls
 
         private string GetLivePlaylistText(string path, int segmentLength)
         {
-            using (var stream = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
-            {
-                using (var reader = new StreamReader(stream))
-                {
-                    var text = reader.ReadToEnd();
+            using var stream = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
+            using var reader = new StreamReader(stream);
 
-                    text = text.Replace("#EXTM3U", "#EXTM3U\n#EXT-X-PLAYLIST-TYPE:EVENT");
+            var text = reader.ReadToEnd();
 
-                    var newDuration = "#EXT-X-TARGETDURATION:" + segmentLength.ToString(CultureInfo.InvariantCulture);
+            text = text.Replace("#EXTM3U", "#EXTM3U\n#EXT-X-PLAYLIST-TYPE:EVENT");
 
-                    text = text.Replace("#EXT-X-TARGETDURATION:" + (segmentLength - 1).ToString(CultureInfo.InvariantCulture), newDuration, StringComparison.OrdinalIgnoreCase);
-                    //text = text.Replace("#EXT-X-TARGETDURATION:" + (segmentLength + 1).ToString(CultureInfo.InvariantCulture), newDuration, StringComparison.OrdinalIgnoreCase);
+            var newDuration = "#EXT-X-TARGETDURATION:" + segmentLength.ToString(CultureInfo.InvariantCulture);
 
-                    return text;
-                }
-            }
+            text = text.Replace("#EXT-X-TARGETDURATION:" + (segmentLength - 1).ToString(CultureInfo.InvariantCulture), newDuration, StringComparison.OrdinalIgnoreCase);
+            //text = text.Replace("#EXT-X-TARGETDURATION:" + (segmentLength + 1).ToString(CultureInfo.InvariantCulture), newDuration, StringComparison.OrdinalIgnoreCase);
+
+            return text;
         }
 
         private string GetMasterPlaylistFileText(string firstPlaylist, int bitrate, int baselineStreamBitrate)
@@ -212,29 +209,25 @@ namespace MediaBrowser.Api.Playback.Hls
                 try
                 {
                     // Need to use FileShare.ReadWrite because we're reading the file at the same time it's being written
-                    using (var fileStream = GetPlaylistFileStream(playlist))
+                    using var fileStream = GetPlaylistFileStream(playlist);
+                    using var reader = new StreamReader(fileStream);
+                    var count = 0;
+
+                    while (!reader.EndOfStream)
                     {
-                        using (var reader = new StreamReader(fileStream))
-                        {
-                            var count = 0;
+                        var line = reader.ReadLine();
 
-                            while (!reader.EndOfStream)
+                        if (line.IndexOf("#EXTINF:", StringComparison.OrdinalIgnoreCase) != -1)
+                        {
+                            count++;
+                            if (count >= segmentCount)
                             {
-                                var line = reader.ReadLine();
-
-                                if (line.IndexOf("#EXTINF:", StringComparison.OrdinalIgnoreCase) != -1)
-                                {
-                                    count++;
-                                    if (count >= segmentCount)
-                                    {
-                                        Logger.LogDebug("Finished waiting for {0} segments in {1}", segmentCount, playlist);
-                                        return;
-                                    }
-                                }
+                                Logger.LogDebug("Finished waiting for {0} segments in {1}", segmentCount, playlist);
+                                return;
                             }
-                            await Task.Delay(100, cancellationToken).ConfigureAwait(false);
                         }
                     }
+                    await Task.Delay(100, cancellationToken).ConfigureAwait(false);
                 }
                 catch (IOException)
                 {
@@ -247,17 +240,13 @@ namespace MediaBrowser.Api.Playback.Hls
 
         protected Stream GetPlaylistFileStream(string path)
         {
-            var tmpPath = path + ".tmp";
-            tmpPath = path;
-
-            try
-            {
-                return new FileStream(tmpPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, IODefaults.FileStreamBufferSize, FileOptions.SequentialScan);
-            }
-            catch (IOException)
-            {
-                return new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, IODefaults.FileStreamBufferSize, FileOptions.SequentialScan);
-            }
+            return new FileStream(
+                path,
+                FileMode.Open,
+                FileAccess.Read,
+                FileShare.ReadWrite,
+                IODefaults.FileStreamBufferSize,
+                FileOptions.SequentialScan);
         }
 
         protected override string GetCommandLineArguments(string outputPath, EncodingOptions encodingOptions, StreamState state, bool isEncoding)
diff --git a/MediaBrowser.Api/Playback/Hls/DynamicHlsService.cs b/MediaBrowser.Api/Playback/Hls/DynamicHlsService.cs
index 3348a3187..20e18cc26 100644
--- a/MediaBrowser.Api/Playback/Hls/DynamicHlsService.cs
+++ b/MediaBrowser.Api/Playback/Hls/DynamicHlsService.cs
@@ -284,7 +284,7 @@ namespace MediaBrowser.Api.Playback.Hls
             //}
 
             Logger.LogDebug("returning {0} [general case]", segmentPath);
-            job = job ?? ApiEntryPoint.Instance.OnTranscodeBeginRequest(playlistPath, TranscodingJobType);
+            job ??= ApiEntryPoint.Instance.OnTranscodeBeginRequest(playlistPath, TranscodingJobType);
             return await GetSegmentResult(state, playlistPath, segmentPath, segmentExtension, requestedIndex, job, cancellationToken).ConfigureAwait(false);
         }
 
@@ -438,8 +438,7 @@ namespace MediaBrowser.Api.Playback.Hls
         {
             var segmentId = "0";
 
-            var segmentRequest = request as GetHlsVideoSegment;
-            if (segmentRequest != null)
+            if (request is GetHlsVideoSegment segmentRequest)
             {
                 segmentId = segmentRequest.SegmentId;
             }
@@ -690,8 +689,7 @@ namespace MediaBrowser.Api.Playback.Hls
                 return false;
             }
 
-            var request = state.Request as IMasterHlsRequest;
-            if (request != null && !request.EnableAdaptiveBitrateStreaming)
+            if (state.Request is IMasterHlsRequest request && !request.EnableAdaptiveBitrateStreaming)
             {
                 return false;
             }
@@ -936,7 +934,7 @@ namespace MediaBrowser.Api.Playback.Hls
 
                 var framerate = state.VideoStream?.RealFrameRate;
 
-                if (framerate != null && framerate.HasValue)
+                if (framerate.HasValue)
                 {
                     // This is to make sure keyframe interval is limited to our segment,
                     // as forcing keyframes is not enough.
diff --git a/MediaBrowser.Api/Playback/MediaInfoService.cs b/MediaBrowser.Api/Playback/MediaInfoService.cs
index d74ec3ca6..2375e05d0 100644
--- a/MediaBrowser.Api/Playback/MediaInfoService.cs
+++ b/MediaBrowser.Api/Playback/MediaInfoService.cs
@@ -234,7 +234,7 @@ namespace MediaBrowser.Api.Playback
                         OpenToken = mediaSource.OpenToken
                     }).ConfigureAwait(false);
 
-                    info.MediaSources = new MediaSourceInfo[] { openStreamResult.MediaSource };
+                    info.MediaSources = new[] { openStreamResult.MediaSource };
                 }
             }
 
@@ -289,7 +289,7 @@ namespace MediaBrowser.Api.Playback
             {
                 var mediaSource = await _mediaSourceManager.GetLiveStream(liveStreamId, CancellationToken.None).ConfigureAwait(false);
 
-                mediaSources = new MediaSourceInfo[] { mediaSource };
+                mediaSources = new[] { mediaSource };
             }
 
             if (mediaSources.Length == 0)
@@ -366,7 +366,7 @@ namespace MediaBrowser.Api.Playback
 
             var options = new VideoOptions
             {
-                MediaSources = new MediaSourceInfo[] { mediaSource },
+                MediaSources = new[] { mediaSource },
                 Context = EncodingContext.Streaming,
                 DeviceId = auth.DeviceId,
                 ItemId = item.Id,
@@ -583,7 +583,7 @@ namespace MediaBrowser.Api.Playback
         private long? GetMaxBitrate(long? clientMaxBitrate, User user)
         {
             var maxBitrate = clientMaxBitrate;
-            var remoteClientMaxBitrate = user == null ? 0 : user.Policy.RemoteClientBitrateLimit;
+            var remoteClientMaxBitrate = user?.Policy.RemoteClientBitrateLimit ?? 0;
 
             if (remoteClientMaxBitrate <= 0)
             {
@@ -662,17 +662,9 @@ namespace MediaBrowser.Api.Playback
                 };
             }).ThenBy(i =>
             {
-                if (maxBitrate.HasValue)
+                if (maxBitrate.HasValue && i.Bitrate.HasValue)
                 {
-                    if (i.Bitrate.HasValue)
-                    {
-                        if (i.Bitrate.Value <= maxBitrate.Value)
-                        {
-                            return 0;
-                        }
-
-                        return 2;
-                    }
+                    return i.Bitrate.Value <= maxBitrate.Value ? 0 : 2;
                 }
 
                 return 1;
diff --git a/MediaBrowser.Api/Playback/UniversalAudioService.cs b/MediaBrowser.Api/Playback/UniversalAudioService.cs
index cbf981dfe..cebd4b49a 100644
--- a/MediaBrowser.Api/Playback/UniversalAudioService.cs
+++ b/MediaBrowser.Api/Playback/UniversalAudioService.cs
@@ -167,7 +167,7 @@ namespace MediaBrowser.Api.Playback
                     AudioCodec = request.AudioCodec,
                     Protocol = request.TranscodingProtocol,
                     BreakOnNonKeyFrames = request.BreakOnNonKeyFrames,
-                    MaxAudioChannels = request.TranscodingAudioChannels.HasValue ? request.TranscodingAudioChannels.Value.ToString(CultureInfo.InvariantCulture) : null
+                    MaxAudioChannels = request.TranscodingAudioChannels?.ToString(CultureInfo.InvariantCulture)
                 }
             };
 
@@ -300,7 +300,7 @@ namespace MediaBrowser.Api.Playback
 
                 // hls segment container can only be mpegts or fmp4 per ffmpeg documentation
                 // TODO: remove this when we switch back to the segment muxer
-                var supportedHLSContainers = new string[] { "mpegts", "fmp4" };
+                var supportedHLSContainers = new[] { "mpegts", "fmp4" };
 
                 var newRequest = new GetMasterHlsAudioPlaylist
                 {
diff --git a/MediaBrowser.Api/PluginService.cs b/MediaBrowser.Api/PluginService.cs
index 16d3268b9..7f74511ee 100644
--- a/MediaBrowser.Api/PluginService.cs
+++ b/MediaBrowser.Api/PluginService.cs
@@ -243,9 +243,7 @@ namespace MediaBrowser.Api
             // https://code.google.com/p/servicestack/source/browse/trunk/Common/ServiceStack.Text/ServiceStack.Text/Controller/PathInfo.cs
             var id = Guid.Parse(GetPathValue(1));
 
-            var plugin = _appHost.Plugins.First(p => p.Id == id) as IHasPluginConfiguration;
-
-            if (plugin == null)
+            if (!(_appHost.Plugins.First(p => p.Id == id) is IHasPluginConfiguration plugin))
             {
                 throw new FileNotFoundException();
             }
diff --git a/MediaBrowser.Api/ScheduledTasks/ScheduledTaskService.cs b/MediaBrowser.Api/ScheduledTasks/ScheduledTaskService.cs
index 2bd387229..e08a8482e 100644
--- a/MediaBrowser.Api/ScheduledTasks/ScheduledTaskService.cs
+++ b/MediaBrowser.Api/ScheduledTasks/ScheduledTaskService.cs
@@ -123,9 +123,7 @@ namespace MediaBrowser.Api.ScheduledTasks
                 {
                     var isHidden = false;
 
-                    var configurableTask = i.ScheduledTask as IConfigurableScheduledTask;
-
-                    if (configurableTask != null)
+                    if (i.ScheduledTask is IConfigurableScheduledTask configurableTask)
                     {
                         isHidden = configurableTask.IsHidden;
                     }
@@ -142,9 +140,7 @@ namespace MediaBrowser.Api.ScheduledTasks
                 {
                     var isEnabled = true;
 
-                    var configurableTask = i.ScheduledTask as IConfigurableScheduledTask;
-
-                    if (configurableTask != null)
+                    if (i.ScheduledTask is IConfigurableScheduledTask configurableTask)
                     {
                         isEnabled = configurableTask.IsEnabled;
                     }
diff --git a/MediaBrowser.Api/SearchService.cs b/MediaBrowser.Api/SearchService.cs
index 0a3dc19dc..e9d339c6e 100644
--- a/MediaBrowser.Api/SearchService.cs
+++ b/MediaBrowser.Api/SearchService.cs
@@ -234,59 +234,48 @@ namespace MediaBrowser.Api
             SetThumbImageInfo(result, item);
             SetBackdropImageInfo(result, item);
 
-            var program = item as LiveTvProgram;
-            if (program != null)
+            switch (item)
             {
-                result.StartDate = program.StartDate;
-            }
-
-            var hasSeries = item as IHasSeries;
-            if (hasSeries != null)
-            {
-                result.Series = hasSeries.SeriesName;
-            }
-
-            var series = item as Series;
-            if (series != null)
-            {
-                if (series.Status.HasValue)
-                {
-                    result.Status = series.Status.Value.ToString();
-                }
-            }
-
-            var album = item as MusicAlbum;
-
-            if (album != null)
-            {
-                result.Artists = album.Artists;
-                result.AlbumArtist = album.AlbumArtist;
-            }
-
-            var song = item as Audio;
-
-            if (song != null)
-            {
-                result.AlbumArtist = song.AlbumArtists.FirstOrDefault();
-                result.Artists = song.Artists;
-
-                album = song.AlbumEntity;
-
-                if (album != null)
-                {
-                    result.Album = album.Name;
-                    result.AlbumId = album.Id;
-                }
-                else
-                {
-                    result.Album = song.Album;
-                }
+                case IHasSeries hasSeries:
+                    result.Series = hasSeries.SeriesName;
+                    break;
+                case LiveTvProgram program:
+                    result.StartDate = program.StartDate;
+                    break;
+                case Series series:
+                    if (series.Status.HasValue)
+                    {
+                        result.Status = series.Status.Value.ToString();
+                    }
+
+                    break;
+                case MusicAlbum album:
+                    result.Artists = album.Artists;
+                    result.AlbumArtist = album.AlbumArtist;
+                    break;
+                case Audio song:
+                    result.AlbumArtist = song.AlbumArtists.FirstOrDefault();
+                    result.Artists = song.Artists;
+
+                    MusicAlbum musicAlbum = song.AlbumEntity;
+
+                    if (musicAlbum != null)
+                    {
+                        result.Album = musicAlbum.Name;
+                        result.AlbumId = musicAlbum.Id;
+                    }
+                    else
+                    {
+                        result.Album = song.Album;
+                    }
+
+                    break;
             }
 
             if (!item.ChannelId.Equals(Guid.Empty))
             {
                 var channel = _libraryManager.GetItemById(item.ChannelId);
-                result.ChannelName = channel == null ? null : channel.Name;
+                result.ChannelName = channel?.Name;
             }
 
             return result;
@@ -296,12 +285,9 @@ namespace MediaBrowser.Api
         {
             var itemWithImage = item.HasImage(ImageType.Thumb) ? item : null;
 
-            if (itemWithImage == null)
+            if (itemWithImage == null && item is Episode)
             {
-                if (item is Episode)
-                {
-                    itemWithImage = GetParentWithImage<Series>(item, ImageType.Thumb);
-                }
+                itemWithImage = GetParentWithImage<Series>(item, ImageType.Thumb);
             }
 
             if (itemWithImage == null)
@@ -323,12 +309,8 @@ namespace MediaBrowser.Api
 
         private void SetBackdropImageInfo(SearchHint hint, BaseItem item)
         {
-            var itemWithImage = item.HasImage(ImageType.Backdrop) ? item : null;
-
-            if (itemWithImage == null)
-            {
-                itemWithImage = GetParentWithImage<BaseItem>(item, ImageType.Backdrop);
-            }
+            var itemWithImage = (item.HasImage(ImageType.Backdrop) ? item : null)
+                ?? GetParentWithImage<BaseItem>(item, ImageType.Backdrop);
 
             if (itemWithImage != null)
             {
diff --git a/MediaBrowser.Api/Subtitles/SubtitleService.cs b/MediaBrowser.Api/Subtitles/SubtitleService.cs
index c4a7ae78e..f2968c6b5 100644
--- a/MediaBrowser.Api/Subtitles/SubtitleService.cs
+++ b/MediaBrowser.Api/Subtitles/SubtitleService.cs
@@ -230,17 +230,14 @@ namespace MediaBrowser.Api.Subtitles
 
             if (string.Equals(request.Format, "vtt", StringComparison.OrdinalIgnoreCase) && request.AddVttTimeMap)
             {
-                using (var stream = await GetSubtitles(request).ConfigureAwait(false))
-                {
-                    using (var reader = new StreamReader(stream))
-                    {
-                        var text = reader.ReadToEnd();
+                using var stream = await GetSubtitles(request).ConfigureAwait(false);
+                using var reader = new StreamReader(stream);
 
-                        text = text.Replace("WEBVTT", "WEBVTT\nX-TIMESTAMP-MAP=MPEGTS:900000,LOCAL:00:00:00.000");
+                var text = reader.ReadToEnd();
 
-                        return ResultFactory.GetResult(Request, text, MimeTypes.GetMimeType("file." + request.Format));
-                    }
-                }
+                text = text.Replace("WEBVTT", "WEBVTT\nX-TIMESTAMP-MAP=MPEGTS:900000,LOCAL:00:00:00.000");
+
+                return ResultFactory.GetResult(Request, text, MimeTypes.GetMimeType("file." + request.Format));
             }
 
             return ResultFactory.GetResult(Request, await GetSubtitles(request).ConfigureAwait(false), MimeTypes.GetMimeType("file." + request.Format));
diff --git a/MediaBrowser.Api/System/SystemService.cs b/MediaBrowser.Api/System/SystemService.cs
index 3a3eeb8b8..c57cc93d5 100644
--- a/MediaBrowser.Api/System/SystemService.cs
+++ b/MediaBrowser.Api/System/SystemService.cs
@@ -168,12 +168,9 @@ namespace MediaBrowser.Api.System
                 .First(i => string.Equals(i.Name, request.Name, StringComparison.OrdinalIgnoreCase));
 
             // For older files, assume fully static
-            if (file.LastWriteTimeUtc < DateTime.UtcNow.AddHours(-1))
-            {
-                return ResultFactory.GetStaticFileResult(Request, file.FullName, FileShare.Read);
-            }
+            var fileShare = file.LastWriteTimeUtc < DateTime.UtcNow.AddHours(-1) ? FileShare.Read : FileShare.ReadWrite;
 
-            return ResultFactory.GetStaticFileResult(Request, file.FullName, FileShare.ReadWrite);
+            return ResultFactory.GetStaticFileResult(Request, file.FullName, fileShare);
         }
 
         /// <summary>
diff --git a/MediaBrowser.Api/TranscodingJob.cs b/MediaBrowser.Api/TranscodingJob.cs
index 6d944d19e..8c24e3ce1 100644
--- a/MediaBrowser.Api/TranscodingJob.cs
+++ b/MediaBrowser.Api/TranscodingJob.cs
@@ -92,10 +92,7 @@ namespace MediaBrowser.Api
         {
             lock (_timerLock)
             {
-                if (KillTimer != null)
-                {
-                    KillTimer.Change(Timeout.Infinite, Timeout.Infinite);
-                }
+                KillTimer?.Change(Timeout.Infinite, Timeout.Infinite);
             }
         }
 
diff --git a/MediaBrowser.Api/TvShowsService.cs b/MediaBrowser.Api/TvShowsService.cs
index 334d1db51..cd8e8dfbe 100644
--- a/MediaBrowser.Api/TvShowsService.cs
+++ b/MediaBrowser.Api/TvShowsService.cs
@@ -424,9 +424,7 @@ namespace MediaBrowser.Api
 
             if (!string.IsNullOrWhiteSpace(request.SeasonId))
             {
-                var season = _libraryManager.GetItemById(new Guid(request.SeasonId)) as Season;
-
-                if (season == null)
+                if (!(_libraryManager.GetItemById(new Guid(request.SeasonId)) is Season season))
                 {
                     throw new ResourceNotFoundException("No season exists with Id " + request.SeasonId);
                 }
@@ -444,14 +442,7 @@ namespace MediaBrowser.Api
 
                 var season = series.GetSeasons(user, dtoOptions).FirstOrDefault(i => i.IndexNumber == request.Season.Value);
 
-                if (season == null)
-                {
-                    episodes = new List<BaseItem>();
-                }
-                else
-                {
-                    episodes = ((Season)season).GetEpisodes(user, dtoOptions);
-                }
+                episodes = season == null ? new List<BaseItem>() : ((Season)season).GetEpisodes(user, dtoOptions);
             }
             else
             {
diff --git a/MediaBrowser.Api/UserLibrary/ArtistsService.cs b/MediaBrowser.Api/UserLibrary/ArtistsService.cs
index adb0a440f..3d08d5437 100644
--- a/MediaBrowser.Api/UserLibrary/ArtistsService.cs
+++ b/MediaBrowser.Api/UserLibrary/ArtistsService.cs
@@ -126,12 +126,7 @@ namespace MediaBrowser.Api.UserLibrary
 
         protected override QueryResult<(BaseItem, ItemCounts)> GetItems(GetItemsByName request, InternalItemsQuery query)
         {
-            if (request is GetAlbumArtists)
-            {
-                return LibraryManager.GetAlbumArtists(query);
-            }
-
-            return LibraryManager.GetArtists(query);
+            return request is GetAlbumArtists ? LibraryManager.GetAlbumArtists(query) : LibraryManager.GetArtists(query);
         }
 
         /// <summary>
diff --git a/MediaBrowser.Api/UserLibrary/BaseItemsByNameService.cs b/MediaBrowser.Api/UserLibrary/BaseItemsByNameService.cs
index 9fa222d32..c4a52d5f5 100644
--- a/MediaBrowser.Api/UserLibrary/BaseItemsByNameService.cs
+++ b/MediaBrowser.Api/UserLibrary/BaseItemsByNameService.cs
@@ -82,8 +82,7 @@ namespace MediaBrowser.Api.UserLibrary
         {
             var parent = GetParentItem(request);
 
-            var collectionFolder = parent as IHasCollectionType;
-            if (collectionFolder != null)
+            if (parent is IHasCollectionType collectionFolder)
             {
                 return collectionFolder.CollectionType;
             }
@@ -274,7 +273,7 @@ namespace MediaBrowser.Api.UserLibrary
                 DtoOptions = dtoOptions
             };
 
-            Func<BaseItem, bool> filter = i => FilterItem(request, i, excludeItemTypes, includeItemTypes, mediaTypes);
+            bool Filter(BaseItem i) => FilterItem(request, i, excludeItemTypes, includeItemTypes, mediaTypes);
 
             if (parentItem.IsFolder)
             {
@@ -284,18 +283,18 @@ namespace MediaBrowser.Api.UserLibrary
                 {
                     items = request.Recursive ?
                         folder.GetRecursiveChildren(user, query).ToList() :
-                        folder.GetChildren(user, true).Where(filter).ToList();
+                        folder.GetChildren(user, true).Where(Filter).ToList();
                 }
                 else
                 {
                     items = request.Recursive ?
-                        folder.GetRecursiveChildren(filter) :
-                        folder.Children.Where(filter).ToList();
+                        folder.GetRecursiveChildren(Filter) :
+                        folder.Children.Where(Filter).ToList();
                 }
             }
             else
             {
-                items = new[] { parentItem }.Where(filter).ToList();
+                items = new[] { parentItem }.Where(Filter).ToList();
             }
 
             var extractedItems = GetAllItems(request, items);
@@ -346,30 +345,21 @@ namespace MediaBrowser.Api.UserLibrary
         private bool FilterItem(GetItemsByName request, BaseItem f, string[] excludeItemTypes, string[] includeItemTypes, string[] mediaTypes)
         {
             // Exclude item types
-            if (excludeItemTypes.Length > 0)
+            if (excludeItemTypes.Length > 0 && excludeItemTypes.Contains(f.GetType().Name, StringComparer.OrdinalIgnoreCase))
             {
-                if (excludeItemTypes.Contains(f.GetType().Name, StringComparer.OrdinalIgnoreCase))
-                {
-                    return false;
-                }
+                return false;
             }
 
             // Include item types
-            if (includeItemTypes.Length > 0)
+            if (includeItemTypes.Length > 0 && !includeItemTypes.Contains(f.GetType().Name, StringComparer.OrdinalIgnoreCase))
             {
-                if (!includeItemTypes.Contains(f.GetType().Name, StringComparer.OrdinalIgnoreCase))
-                {
-                    return false;
-                }
+                return false;
             }
 
             // Include MediaTypes
-            if (mediaTypes.Length > 0)
+            if (mediaTypes.Length > 0 && !mediaTypes.Contains(f.MediaType ?? string.Empty, StringComparer.OrdinalIgnoreCase))
             {
-                if (!mediaTypes.Contains(f.MediaType ?? string.Empty, StringComparer.OrdinalIgnoreCase))
-                {
-                    return false;
-                }
+                return false;
             }
 
             return true;
diff --git a/MediaBrowser.Api/UserLibrary/BaseItemsRequest.cs b/MediaBrowser.Api/UserLibrary/BaseItemsRequest.cs
index a26f59573..7561b5c89 100644
--- a/MediaBrowser.Api/UserLibrary/BaseItemsRequest.cs
+++ b/MediaBrowser.Api/UserLibrary/BaseItemsRequest.cs
@@ -396,12 +396,10 @@ namespace MediaBrowser.Api.UserLibrary
 
         public VideoType[] GetVideoTypes()
         {
-            if (string.IsNullOrEmpty(VideoTypes))
-            {
-                return Array.Empty<VideoType>();
-            }
-
-            return VideoTypes.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries).Select(v => (VideoType)Enum.Parse(typeof(VideoType), v, true)).ToArray();
+            return string.IsNullOrEmpty(VideoTypes)
+                ? Array.Empty<VideoType>()
+                : VideoTypes.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries)
+                    .Select(v => Enum.Parse<VideoType>(v, true)).ToArray();
         }
 
         /// <summary>
@@ -412,12 +410,10 @@ namespace MediaBrowser.Api.UserLibrary
         {
             var val = Filters;
 
-            if (string.IsNullOrEmpty(val))
-            {
-                return new ItemFilter[] { };
-            }
-
-            return val.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries).Select(v => (ItemFilter)Enum.Parse(typeof(ItemFilter), v, true)).ToArray();
+            return string.IsNullOrEmpty(val)
+                ? Array.Empty<ItemFilter>()
+                : val.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries)
+                    .Select(v => Enum.Parse<ItemFilter>(v, true)).ToArray();
         }
 
         /// <summary>
@@ -428,12 +424,9 @@ namespace MediaBrowser.Api.UserLibrary
         {
             var val = ImageTypes;
 
-            if (string.IsNullOrEmpty(val))
-            {
-                return new ImageType[] { };
-            }
-
-            return val.Split(',').Select(v => (ImageType)Enum.Parse(typeof(ImageType), v, true)).ToArray();
+            return string.IsNullOrEmpty(val)
+                ? Array.Empty<ImageType>()
+                : val.Split(',').Select(v => Enum.Parse<ImageType>(v, true)).ToArray();
         }
 
         /// <summary>
@@ -469,7 +462,9 @@ namespace MediaBrowser.Api.UserLibrary
                 var sortOrderIndex = sortOrders.Length > i ? i : 0;
 
                 var sortOrderValue = sortOrders.Length > sortOrderIndex ? sortOrders[sortOrderIndex] : null;
-                var sortOrder = string.Equals(sortOrderValue, "Descending", StringComparison.OrdinalIgnoreCase) ? MediaBrowser.Model.Entities.SortOrder.Descending : MediaBrowser.Model.Entities.SortOrder.Ascending;
+                var sortOrder = string.Equals(sortOrderValue, "Descending", StringComparison.OrdinalIgnoreCase)
+                    ? MediaBrowser.Model.Entities.SortOrder.Descending
+                    : MediaBrowser.Model.Entities.SortOrder.Ascending;
 
                 result[i] = new ValueTuple<string, SortOrder>(vals[i], sortOrder);
             }
diff --git a/MediaBrowser.Api/UserLibrary/ItemsService.cs b/MediaBrowser.Api/UserLibrary/ItemsService.cs
index 22e4eea0b..ac59c3030 100644
--- a/MediaBrowser.Api/UserLibrary/ItemsService.cs
+++ b/MediaBrowser.Api/UserLibrary/ItemsService.cs
@@ -199,14 +199,12 @@ namespace MediaBrowser.Api.UserLibrary
                 item = _libraryManager.GetUserRootFolder();
             }
 
-            Folder folder = item as Folder;
-            if (folder == null)
+            if (!(item is Folder folder))
             {
                 folder = _libraryManager.GetUserRootFolder();
             }
 
-            var hasCollectionType = folder as IHasCollectionType;
-            if (hasCollectionType != null
+            if (folder is IHasCollectionType hasCollectionType
                 && string.Equals(hasCollectionType.CollectionType, CollectionType.Playlists, StringComparison.OrdinalIgnoreCase))
             {
                 request.Recursive = true;
diff --git a/MediaBrowser.Api/VideosService.cs b/MediaBrowser.Api/VideosService.cs
index 46b6d5a94..b11fd48d3 100644
--- a/MediaBrowser.Api/VideosService.cs
+++ b/MediaBrowser.Api/VideosService.cs
@@ -139,17 +139,11 @@ namespace MediaBrowser.Api
                 .ToList();
 
             var primaryVersion = videosWithVersions.FirstOrDefault();
-
             if (primaryVersion == null)
             {
                 primaryVersion = items.OrderBy(i =>
                     {
-                        if (i.Video3DFormat.HasValue)
-                        {
-                            return 1;
-                        }
-
-                        if (i.VideoType != Model.Entities.VideoType.VideoFile)
+                        if (i.Video3DFormat.HasValue || i.VideoType != Model.Entities.VideoType.VideoFile)
                         {
                             return 1;
                         }
@@ -158,10 +152,7 @@ namespace MediaBrowser.Api
                     })
                     .ThenByDescending(i =>
                     {
-                        var stream = i.GetDefaultVideoStream();
-
-                        return stream == null || stream.Width == null ? 0 : stream.Width.Value;
-
+                        return i.GetDefaultVideoStream()?.Width ?? 0;
                     }).First();
             }