Fix some warnings

Emby.Server.Implementations/ApplicationHost.cs

@@ -1118,7 +1118,7 @@ public IEnumerable<WakeOnLanInfo> GetWakeOnLanInfo()
                 .Select(i => new WakeOnLanInfo(i))
                 .ToList();
 
-        public PublicSystemInfo GetPublicSystemInfo(IPAddress source)
+        public PublicSystemInfo GetPublicSystemInfo(IPAddress address)
         {
             return new PublicSystemInfo
             {
@@ -1127,7 +1127,7 @@ public PublicSystemInfo GetPublicSystemInfo(IPAddress source)
                 Id = SystemId,
                 OperatingSystem = OperatingSystem.Id.ToString(),
                 ServerName = FriendlyName,
-                LocalAddress = GetSmartApiUrl(source),
+                LocalAddress = GetSmartApiUrl(address),
                 StartupWizardCompleted = ConfigurationManager.CommonConfiguration.IsStartupWizardCompleted
             };
         }
@@ -1136,7 +1136,7 @@ public PublicSystemInfo GetPublicSystemInfo(IPAddress source)
         public bool ListenWithHttps => Certificate != null && ConfigurationManager.GetNetworkConfiguration().EnableHttps;
 
         /// <inheritdoc/>
-        public string GetSmartApiUrl(IPAddress ipAddress, int? port = null)
+        public string GetSmartApiUrl(IPAddress remoteAddr, int? port = null)
         {
             // Published server ends with a /
             if (!string.IsNullOrEmpty(PublishedServerUrl))
@@ -1145,7 +1145,7 @@ public string GetSmartApiUrl(IPAddress ipAddress, int? port = null)
                 return PublishedServerUrl.Trim('/');
             }
 
-            string smart = NetManager.GetBindInterface(ipAddress, out port);
+            string smart = NetManager.GetBindInterface(remoteAddr, out port);
             // If the smartAPI doesn't start with http then treat it as a host or ip.
             if (smart.StartsWith("http", StringComparison.OrdinalIgnoreCase))
             {
@@ -1208,14 +1208,14 @@ public string GetLoopbackHttpApiUrl()
         }
 
         /// <inheritdoc/>
-        public string GetLocalApiUrl(string host, string scheme = null, int? port = null)
+        public string GetLocalApiUrl(string hostname, string scheme = null, int? port = null)
         {
             // NOTE: If no BaseUrl is set then UriBuilder appends a trailing slash, but if there is no BaseUrl it does
             // not. For consistency, always trim the trailing slash.
             return new UriBuilder
             {
                 Scheme = scheme ?? (ListenWithHttps ? Uri.UriSchemeHttps : Uri.UriSchemeHttp),
-                Host = host,
+                Host = hostname,
                 Port = port ?? (ListenWithHttps ? HttpsPort : HttpPort),
                 Path = ConfigurationManager.GetNetworkConfiguration().BaseUrl
             }.ToString().TrimEnd('/');

Emby.Server.Implementations/Library/LibraryManager.cs

@@ -2540,9 +2540,10 @@ public bool FillMissingEpisodeNumbersFromPath(Episode episode, bool forceRefresh
             {
                 episodeInfo = resolver.Resolve(episode.Path, isFolder, null, null, isAbsoluteNaming);
                 // Resolve from parent folder if it's not the Season folder
-                if (episodeInfo == null && episode.Parent.GetType() == typeof(Folder))
+                var parent = episode.GetParent();
+                if (episodeInfo == null && parent.GetType() == typeof(Folder))
                 {
-                    episodeInfo = resolver.Resolve(episode.Parent.Path, true, null, null, isAbsoluteNaming);
+                    episodeInfo = resolver.Resolve(parent.Path, true, null, null, isAbsoluteNaming);
                     if (episodeInfo != null)
                     {
                         // add the container

Emby.Server.Implementations/ScheduledTasks/Tasks/CleanActivityLogTask.cs

@@ -65,7 +65,7 @@ public Task Execute(CancellationToken cancellationToken, IProgress<double> progr
                 throw new Exception($"Activity Log Retention days must be at least 0. Currently: {retentionDays}");
             }
 
-            var startDate = DateTime.UtcNow.AddDays(retentionDays.Value * -1);
+            var startDate = DateTime.UtcNow.AddDays(-retentionDays.Value);
             return _activityManager.CleanAsync(startDate);
         }
 

MediaBrowser.Common/Net/IPHost.cs

@@ -79,16 +79,11 @@ public override IPAddress Address
         /// </summary>
         public override byte PrefixLength
         {
-            get
-            {
-                return (byte)(ResolveHost() ? 128 : 32);
-            }
+            get => (byte)(ResolveHost() ? 128 : 32);
 
-            set
-            {
-                // Not implemented, as a host object can only have a prefix length of 128 (IPv6) or 32 (IPv4) prefix length,
-                // which is automatically determined by it's IP type. Anything else is meaningless.
-            }
+            // Not implemented, as a host object can only have a prefix length of 128 (IPv6) or 32 (IPv4) prefix length,
+            // which is automatically determined by it's IP type. Anything else is meaningless.
+            set => throw new NotImplementedException();
         }
 
         /// <summary>

MediaBrowser.Controller/Entities/BaseItem.cs

@@ -771,19 +771,6 @@ public bool EnableMediaSourceDisplay
         [JsonIgnore]
         public Guid ParentId { get; set; }
 
-        /// <summary>
-        /// Gets or sets the parent.
-        /// </summary>
-        /// <value>The parent.</value>
-        [JsonIgnore]
-        public Folder Parent
-        {
-            get => GetParent() as Folder;
-            set
-            {
-            }
-        }
-
         public void SetParent(Folder parent)
         {
             ParentId = parent == null ? Guid.Empty : parent.Id;
@@ -822,8 +809,7 @@ public T FindParent<T>()
         {
             foreach (var parent in GetParents())
             {
-                var item = parent as T;
-                if (item != null)
+                if (parent is T item)
                 {
                     return item;
                 }

MediaBrowser.Controller/Entities/UserView.cs

@@ -15,6 +15,25 @@ namespace MediaBrowser.Controller.Entities
 {
     public class UserView : Folder, IHasCollectionType
     {
+        private static readonly string[] _viewTypesEligibleForGrouping = new string[]
+        {
+            Model.Entities.CollectionType.Movies,
+            Model.Entities.CollectionType.TvShows,
+            string.Empty
+        };
+
+        private static readonly string[] _originalFolderViewTypes = new string[]
+        {
+            Model.Entities.CollectionType.Books,
+            Model.Entities.CollectionType.MusicVideos,
+            Model.Entities.CollectionType.HomeVideos,
+            Model.Entities.CollectionType.Photos,
+            Model.Entities.CollectionType.Music,
+            Model.Entities.CollectionType.BoxSets
+        };
+
+        public static ITVSeriesManager TVSeriesManager { get; set; }
+
         /// <summary>
         /// Gets or sets the view type.
         /// </summary>
@@ -30,12 +49,22 @@ public class UserView : Folder, IHasCollectionType
         /// </summary>
         public Guid? UserId { get; set; }
 
-        public static ITVSeriesManager TVSeriesManager;
-
         /// <inheritdoc />
         [JsonIgnore]
         public string CollectionType => ViewType;
 
+        /// <inheritdoc />
+        [JsonIgnore]
+        public override bool SupportsInheritedParentImages => false;
+
+        /// <inheritdoc />
+        [JsonIgnore]
+        public override bool SupportsPlayedStatus => false;
+
+        /// <inheritdoc />
+        [JsonIgnore]
+        public override bool SupportsPeople => false;
+
         /// <inheritdoc />
         public override IEnumerable<Guid> GetIdsForAncestorQuery()
         {
@@ -53,17 +82,13 @@ public override IEnumerable<Guid> GetIdsForAncestorQuery()
             }
         }
 
-        [JsonIgnore]
-        public override bool SupportsInheritedParentImages => false;
-
-        [JsonIgnore]
-        public override bool SupportsPlayedStatus => false;
-
+        /// <inheritdoc />
         public override int GetChildCount(User user)
         {
             return GetChildren(user, true).Count;
         }
 
+        /// <inheritdoc />
         protected override QueryResult<BaseItem> GetItemsInternal(InternalItemsQuery query)
         {
             var parent = this as Folder;
@@ -81,6 +106,7 @@ protected override QueryResult<BaseItem> GetItemsInternal(InternalItemsQuery que
                 .GetUserItems(parent, this, CollectionType, query);
         }
 
+        /// <inheritdoc />
         public override List<BaseItem> GetChildren(User user, bool includeLinkedChildren, InternalItemsQuery query)
         {
             query ??= new InternalItemsQuery(user);
@@ -91,16 +117,19 @@ public override List<BaseItem> GetChildren(User user, bool includeLinkedChildren
             return result.ToList();
         }
 
+        /// <inheritdoc />
         public override bool CanDelete()
         {
             return false;
         }
 
+        /// <inheritdoc />
         public override bool IsSaveLocalMetadataEnabled()
         {
             return true;
         }
 
+        /// <inheritdoc />
         public override IEnumerable<BaseItem> GetRecursiveChildren(User user, InternalItemsQuery query)
         {
             query.SetUser(user);
@@ -111,32 +140,26 @@ public override IEnumerable<BaseItem> GetRecursiveChildren(User user, InternalIt
             return GetItemList(query);
         }
 
+        /// <inheritdoc />
         protected override IEnumerable<BaseItem> GetEligibleChildrenForRecursiveChildren(User user)
         {
             return GetChildren(user, false);
         }
 
-        private static readonly string[] UserSpecificViewTypes = new string[]
-        {
-            Model.Entities.CollectionType.Playlists
-        };
-
         public static bool IsUserSpecific(Folder folder)
         {
-            var collectionFolder = folder as ICollectionFolder;
-
-            if (collectionFolder == null)
+            if (folder is not ICollectionFolder collectionFolder)
             {
                 return false;
             }
 
-            var supportsUserSpecific = folder as ISupportsUserSpecificView;
-            if (supportsUserSpecific != null && supportsUserSpecific.EnableUserSpecificView)
+            if (folder is ISupportsUserSpecificView supportsUserSpecific
+                && supportsUserSpecific.EnableUserSpecificView)
             {
                 return true;
             }
 
-            return UserSpecificViewTypes.Contains(collectionFolder.CollectionType ?? string.Empty, StringComparer.OrdinalIgnoreCase);
+            return string.Equals(Model.Entities.CollectionType.Playlists, collectionFolder.CollectionType, StringComparison.OrdinalIgnoreCase);
         }
 
         public static bool IsEligibleForGrouping(Folder folder)
@@ -145,39 +168,19 @@ public static bool IsEligibleForGrouping(Folder folder)
                     && IsEligibleForGrouping(collectionFolder.CollectionType);
         }
 
-        private static string[] ViewTypesEligibleForGrouping = new string[]
-            {
-                Model.Entities.CollectionType.Movies,
-                Model.Entities.CollectionType.TvShows,
-                string.Empty
-            };
-
         public static bool IsEligibleForGrouping(string viewType)
         {
-            return ViewTypesEligibleForGrouping.Contains(viewType ?? string.Empty, StringComparer.OrdinalIgnoreCase);
+            return _viewTypesEligibleForGrouping.Contains(viewType ?? string.Empty, StringComparer.OrdinalIgnoreCase);
         }
 
-        private static string[] OriginalFolderViewTypes = new string[]
-            {
-                Model.Entities.CollectionType.Books,
-                Model.Entities.CollectionType.MusicVideos,
-                Model.Entities.CollectionType.HomeVideos,
-                Model.Entities.CollectionType.Photos,
-                Model.Entities.CollectionType.Music,
-                Model.Entities.CollectionType.BoxSets
-            };
-
         public static bool EnableOriginalFolder(string viewType)
         {
-            return OriginalFolderViewTypes.Contains(viewType ?? string.Empty, StringComparer.OrdinalIgnoreCase);
+            return _originalFolderViewTypes.Contains(viewType ?? string.Empty, StringComparer.OrdinalIgnoreCase);
         }
 
         protected override Task ValidateChildrenInternal(IProgress<double> progress, bool recursive, bool refreshChildMetadata, Providers.MetadataRefreshOptions refreshOptions, Providers.IDirectoryService directoryService, System.Threading.CancellationToken cancellationToken)
         {
             return Task.CompletedTask;
         }
-
-        [JsonIgnore]
-        public override bool SupportsPeople => false;
     }
 }

tests/Jellyfin.MediaEncoding.Tests/FFprobeParserTests.cs

@@ -14,9 +14,10 @@ public class FFprobeParserTests
         public async Task Test(string fileName)
         {
             var path = Path.Join("Test Data", fileName);
-            using (var stream = File.OpenRead(path))
+            await using (var stream = File.OpenRead(path))
             {
-                await JsonSerializer.DeserializeAsync<InternalMediaInfoResult>(stream, JsonDefaults.Options).ConfigureAwait(false);
+                var res = await JsonSerializer.DeserializeAsync<InternalMediaInfoResult>(stream, JsonDefaults.Options).ConfigureAwait(false);
+                Assert.NotNull(res);
             }
         }
     }