Use our own Contains extension

Emby.Server.Implementations/Library/Resolvers/Audio/MusicArtistResolver.cs

@@ -4,12 +4,10 @@ using System;
 using System.Linq;
 using System.Threading.Tasks;
 using Emby.Naming.Common;
-using MediaBrowser.Controller.Configuration;
 using MediaBrowser.Controller.Entities.Audio;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Controller.Resolvers;
 using MediaBrowser.Model.Entities;
-using MediaBrowser.Model.IO;
 using Microsoft.Extensions.Logging;
 
 namespace Emby.Server.Implementations.Library.Resolvers.Audio

Emby.Server.Implementations/Library/Resolvers/Books/BookResolver.cs

@@ -5,6 +5,7 @@
 using System;
 using System.IO;
 using System.Linq;
+using Jellyfin.Extensions;
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Model.Entities;
@@ -32,7 +33,7 @@ namespace Emby.Server.Implementations.Library.Resolvers.Books
 
             var extension = Path.GetExtension(args.Path);
 
-            if (extension != null && _validExtensions.Contains(extension, StringComparer.OrdinalIgnoreCase))
+            if (extension != null && _validExtensions.Contains(extension, StringComparison.OrdinalIgnoreCase))
             {
                 // It's a book
                 return new Book

Emby.Server.Implementations/Library/Resolvers/PhotoResolver.cs

@@ -8,6 +8,7 @@ using System.IO;
 using System.Linq;
 using Emby.Naming.Common;
 using Emby.Naming.Video;
+using Jellyfin.Extensions;
 using MediaBrowser.Controller.Drawing;
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.Library;
@@ -109,7 +110,7 @@ namespace Emby.Server.Implementations.Library.Resolvers
             }
 
             string extension = Path.GetExtension(path).TrimStart('.');
-            return imageProcessor.SupportedInputFormats.Contains(extension, StringComparer.OrdinalIgnoreCase);
+            return imageProcessor.SupportedInputFormats.Contains(extension, StringComparison.OrdinalIgnoreCase);
         }
     }
 }

Emby.Server.Implementations/Library/Resolvers/PlaylistResolver.cs

@@ -5,6 +5,7 @@
 using System;
 using System.IO;
 using System.Linq;
+using Jellyfin.Extensions;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Controller.Playlists;
 using MediaBrowser.Controller.Resolvers;
@@ -57,10 +58,10 @@ namespace Emby.Server.Implementations.Library.Resolvers
 
             // Check if this is a music playlist file
             // It should have the correct collection type and a supported file extension
-            else if (_musicPlaylistCollectionTypes.Contains(args.CollectionType ?? string.Empty, StringComparer.OrdinalIgnoreCase))
+            else if (_musicPlaylistCollectionTypes.Contains(args.CollectionType ?? string.Empty, StringComparison.OrdinalIgnoreCase))
             {
                 var extension = Path.GetExtension(args.Path);
-                if (Playlist.SupportedExtensions.Contains(extension ?? string.Empty, StringComparer.OrdinalIgnoreCase))
+                if (Playlist.SupportedExtensions.Contains(extension ?? string.Empty, StringComparison.OrdinalIgnoreCase))
                 {
                     return new Playlist
                     {

Emby.Server.Implementations/Library/Resolvers/TV/EpisodeResolver.cs

@@ -3,7 +3,6 @@
 using System;
 using System.Linq;
 using Emby.Naming.Common;
-using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.Entities.TV;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Model.Entities;

Emby.Server.Implementations/Library/Resolvers/TV/SeriesResolver.cs

@@ -5,12 +5,9 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
-using System.Linq;
 using Emby.Naming.Common;
 using Emby.Naming.TV;
 using Emby.Naming.Video;
-using MediaBrowser.Common.Configuration;
-using MediaBrowser.Controller.Configuration;
 using MediaBrowser.Controller.Entities.TV;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Controller.Resolvers;