repo creation with initial code after cloning public repo

Emby.Server.Implementations/Sorting/AiredEpisodeOrderComparer.cs

@@ -0,0 +1,160 @@
+#pragma warning disable CS1591
+
+using System;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Entities.TV;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    public class AiredEpisodeOrderComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.AiredEpisodeOrder;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            ArgumentNullException.ThrowIfNull(x);
+
+            ArgumentNullException.ThrowIfNull(y);
+
+            var episode1 = x as Episode;
+            var episode2 = y as Episode;
+
+            if (episode1 is null)
+            {
+                if (episode2 is null)
+                {
+                    return 0;
+                }
+
+                return 1;
+            }
+
+            if (episode2 is null)
+            {
+                return -1;
+            }
+
+            return Compare(episode1, episode2);
+        }
+
+        private int Compare(Episode x, Episode y)
+        {
+            var isXSpecial = (x.ParentIndexNumber ?? -1) == 0;
+            var isYSpecial = (y.ParentIndexNumber ?? -1) == 0;
+
+            if (isXSpecial && isYSpecial)
+            {
+                return CompareSpecials(x, y);
+            }
+
+            if (!isXSpecial && !isYSpecial)
+            {
+                return CompareEpisodes(x, y);
+            }
+
+            if (!isXSpecial)
+            {
+                return CompareEpisodeToSpecial(x, y);
+            }
+
+            return CompareEpisodeToSpecial(y, x) * -1;
+        }
+
+        private static int CompareEpisodeToSpecial(Episode x, Episode y)
+        {
+            // http://thetvdb.com/wiki/index.php?title=Special_Episodes
+
+            var xSeason = x.ParentIndexNumber ?? -1;
+            var ySeason = y.AirsAfterSeasonNumber ?? y.AirsBeforeSeasonNumber ?? -1;
+
+            if (xSeason != ySeason)
+            {
+                return xSeason.CompareTo(ySeason);
+            }
+
+            // Special comes after episode
+            if (y.AirsAfterSeasonNumber.HasValue)
+            {
+                return -1;
+            }
+
+            var yEpisode = y.AirsBeforeEpisodeNumber;
+
+            // Special comes before the season
+            if (!yEpisode.HasValue)
+            {
+                return 1;
+            }
+
+            // Compare episode number
+            var xEpisode = x.IndexNumber;
+
+            if (!xEpisode.HasValue)
+            {
+                // Can't really compare if this happens
+                return 0;
+            }
+
+            // Special comes before episode
+            if (xEpisode.Value == yEpisode.Value)
+            {
+                return 1;
+            }
+
+            return xEpisode.Value.CompareTo(yEpisode.Value);
+        }
+
+        private int CompareSpecials(Episode x, Episode y)
+        {
+            return GetSpecialCompareValue(x).CompareTo(GetSpecialCompareValue(y));
+        }
+
+        private static long GetSpecialCompareValue(Episode item)
+        {
+            // First sort by season number
+            // Since there are three sort orders, pad with 9 digits (3 for each, figure 1000 episode buffer should be enough)
+            var val = (item.AirsAfterSeasonNumber ?? item.AirsBeforeSeasonNumber ?? 0) * 1000000000L;
+
+            // Second sort order is if it airs after the season
+            if (item.AirsAfterSeasonNumber.HasValue)
+            {
+                val += 1000000;
+            }
+
+            // Third level is the episode number
+            val += (item.AirsBeforeEpisodeNumber ?? 0) * 1000;
+
+            // Finally, if that's still the same, last resort is the special number itself
+            val += item.IndexNumber ?? 0;
+
+            return val;
+        }
+
+        private static int CompareEpisodes(Episode x, Episode y)
+        {
+            var xValue = ((x.ParentIndexNumber ?? -1) * 1000) + (x.IndexNumber ?? -1);
+            var yValue = ((y.ParentIndexNumber ?? -1) * 1000) + (y.IndexNumber ?? -1);
+            var comparisonResult = xValue.CompareTo(yValue);
+            // If equal, compare premiere dates
+            if (comparisonResult == 0 && x.PremiereDate.HasValue && y.PremiereDate.HasValue)
+            {
+                comparisonResult = DateTime.Compare(x.PremiereDate.Value, y.PremiereDate.Value);
+            }
+
+            return comparisonResult;
+        }
+    }
+}

Emby.Server.Implementations/Sorting/AlbumArtistComparer.cs

@@ -0,0 +1,42 @@
+using System;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Entities.Audio;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    /// <summary>
+    /// Allows comparing artists of albums. Only the first artist of each album is considered.
+    /// </summary>
+    public class AlbumArtistComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the item type this comparer compares.
+        /// </summary>
+        public ItemSortBy Type => ItemSortBy.AlbumArtist;
+
+        /// <summary>
+        /// Compares the specified arguments on their primary artist.
+        /// </summary>
+        /// <param name="x">First item to compare.</param>
+        /// <param name="y">Second item to compare.</param>
+        /// <returns>Zero if equal, else negative or positive number to indicate order.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            return string.Compare(GetFirstAlbumArtist(x), GetFirstAlbumArtist(y), StringComparison.OrdinalIgnoreCase);
+        }
+
+        private static string? GetFirstAlbumArtist(BaseItem? x)
+        {
+            if (x is IHasAlbumArtist audio
+                && audio.AlbumArtists.Count != 0)
+            {
+                return audio.AlbumArtists[0];
+            }
+
+            return null;
+        }
+    }
+}

Emby.Server.Implementations/Sorting/AlbumComparer.cs

@@ -0,0 +1,42 @@
+using System;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Entities.Audio;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    /// <summary>
+    /// Class AlbumComparer.
+    /// </summary>
+    public class AlbumComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.Album;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            return string.Compare(GetValue(x), GetValue(y), StringComparison.OrdinalIgnoreCase);
+        }
+
+        /// <summary>
+        /// Gets the value.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <returns>System.String.</returns>
+        private static string GetValue(BaseItem? x)
+        {
+            return x is Audio audio ? audio.Album : string.Empty;
+        }
+    }
+}

Emby.Server.Implementations/Sorting/ArtistComparer.cs

@@ -0,0 +1,39 @@
+using System;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Entities.Audio;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    /// <summary>
+    /// Class ArtistComparer.
+    /// </summary>
+    public class ArtistComparer : IBaseItemComparer
+    {
+        /// <inheritdoc />
+        public ItemSortBy Type => ItemSortBy.Artist;
+
+        /// <inheritdoc />
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            return string.Compare(GetValue(x), GetValue(y), StringComparison.OrdinalIgnoreCase);
+        }
+
+        /// <summary>
+        /// Gets the value.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <returns>System.String.</returns>
+        private static string? GetValue(BaseItem? x)
+        {
+            if (x is not Audio audio)
+            {
+                return string.Empty;
+            }
+
+            return audio.Artists.Count == 0 ? null : audio.Artists[0];
+        }
+    }
+}

Emby.Server.Implementations/Sorting/CommunityRatingComparer.cs

@@ -0,0 +1,34 @@
+#pragma warning disable CS1591
+
+using System;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    public class CommunityRatingComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.CommunityRating;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            ArgumentNullException.ThrowIfNull(x);
+
+            ArgumentNullException.ThrowIfNull(y);
+
+            return (x.CommunityRating ?? 0).CompareTo(y.CommunityRating ?? 0);
+        }
+    }
+}

Emby.Server.Implementations/Sorting/CriticRatingComparer.cs

@@ -0,0 +1,35 @@
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    /// <summary>
+    /// Class CriticRatingComparer.
+    /// </summary>
+    public class CriticRatingComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.CriticRating;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            return GetValue(x).CompareTo(GetValue(y));
+        }
+
+        private static float GetValue(BaseItem? x)
+        {
+            return x?.CriticRating ?? 0;
+        }
+    }
+}

Emby.Server.Implementations/Sorting/DateCreatedComparer.cs

@@ -0,0 +1,35 @@
+using System;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    /// <summary>
+    /// Class DateCreatedComparer.
+    /// </summary>
+    public class DateCreatedComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.DateCreated;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            ArgumentNullException.ThrowIfNull(x);
+
+            ArgumentNullException.ThrowIfNull(y);
+
+            return DateTime.Compare(x.DateCreated, y.DateCreated);
+        }
+    }
+}

Emby.Server.Implementations/Sorting/DateLastMediaAddedComparer.cs

@@ -0,0 +1,69 @@
+#nullable disable
+#pragma warning disable CS1591
+
+using System;
+using Jellyfin.Data.Enums;
+using Jellyfin.Database.Implementations.Entities;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    public class DateLastMediaAddedComparer : IUserBaseItemComparer
+    {
+        /// <summary>
+        /// Gets or sets the user.
+        /// </summary>
+        /// <value>The user.</value>
+        public User User { get; set; }
+
+        /// <summary>
+        /// Gets or sets the user manager.
+        /// </summary>
+        /// <value>The user manager.</value>
+        public IUserManager UserManager { get; set; }
+
+        /// <summary>
+        /// Gets or sets the user data manager.
+        /// </summary>
+        /// <value>The user data manager.</value>
+        public IUserDataManager UserDataManager { get; set; }
+
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.DateLastContentAdded;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem x, BaseItem y)
+        {
+            return GetDate(x).CompareTo(GetDate(y));
+        }
+
+        /// <summary>
+        /// Gets the date.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <returns>DateTime.</returns>
+        private static DateTime GetDate(BaseItem x)
+        {
+            if (x is Folder folder)
+            {
+                if (folder.DateLastMediaAdded.HasValue)
+                {
+                    return folder.DateLastMediaAdded.Value;
+                }
+            }
+
+            return DateTime.MinValue;
+        }
+    }
+}

Emby.Server.Implementations/Sorting/DatePlayedComparer.cs

@@ -0,0 +1,70 @@
+#nullable disable
+
+using System;
+using Jellyfin.Data.Enums;
+using Jellyfin.Database.Implementations.Entities;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    /// <summary>
+    /// Class DatePlayedComparer.
+    /// </summary>
+    public class DatePlayedComparer : IUserBaseItemComparer
+    {
+        /// <summary>
+        /// Gets or sets the user.
+        /// </summary>
+        /// <value>The user.</value>
+        public User User { get; set; }
+
+        /// <summary>
+        /// Gets or sets the user manager.
+        /// </summary>
+        /// <value>The user manager.</value>
+        public IUserManager UserManager { get; set; }
+
+        /// <summary>
+        /// Gets or sets the user data manager.
+        /// </summary>
+        /// <value>The user data manager.</value>
+        public IUserDataManager UserDataManager { get; set; }
+
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.DatePlayed;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem x, BaseItem y)
+        {
+            return GetDate(x).CompareTo(GetDate(y));
+        }
+
+        /// <summary>
+        /// Gets the date.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <returns>DateTime.</returns>
+        private DateTime GetDate(BaseItem x)
+        {
+            var userdata = UserDataManager.GetUserData(User, x);
+
+            if (userdata is not null && userdata.LastPlayedDate.HasValue)
+            {
+                return userdata.LastPlayedDate.Value;
+            }
+
+            return DateTime.MinValue;
+        }
+    }
+}

Emby.Server.Implementations/Sorting/IndexNumberComparer.cs

@@ -0,0 +1,50 @@
+using System;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    /// <summary>
+    /// Class IndexNumberComparer.
+    /// </summary>
+    public class IndexNumberComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.IndexNumber;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            ArgumentNullException.ThrowIfNull(x);
+
+            ArgumentNullException.ThrowIfNull(y);
+
+            if (!x.IndexNumber.HasValue && !y.IndexNumber.HasValue)
+            {
+                return 0;
+            }
+
+            if (!x.IndexNumber.HasValue)
+            {
+                return -1;
+            }
+
+            if (!y.IndexNumber.HasValue)
+            {
+                return 1;
+            }
+
+            return x.IndexNumber.Value.CompareTo(y.IndexNumber.Value);
+        }
+    }
+}

Emby.Server.Implementations/Sorting/IsFavoriteOrLikeComparer.cs

@@ -0,0 +1,59 @@
+#nullable disable
+#pragma warning disable CS1591
+
+using Jellyfin.Data.Enums;
+using Jellyfin.Database.Implementations.Entities;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Sorting;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    public class IsFavoriteOrLikeComparer : IUserBaseItemComparer
+    {
+        /// <summary>
+        /// Gets or sets the user.
+        /// </summary>
+        /// <value>The user.</value>
+        public User User { get; set; }
+
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.IsFavoriteOrLiked;
+
+        /// <summary>
+        /// Gets or sets the user data manager.
+        /// </summary>
+        /// <value>The user data manager.</value>
+        public IUserDataManager UserDataManager { get; set; }
+
+        /// <summary>
+        /// Gets or sets the user manager.
+        /// </summary>
+        /// <value>The user manager.</value>
+        public IUserManager UserManager { get; set; }
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem x, BaseItem y)
+        {
+            return GetValue(x).CompareTo(GetValue(y));
+        }
+
+        /// <summary>
+        /// Gets the date.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <returns>DateTime.</returns>
+        private int GetValue(BaseItem x)
+        {
+            return x.IsFavoriteOrLiked(User, userItemData: null) ? 0 : 1;
+        }
+    }
+}

Emby.Server.Implementations/Sorting/IsFolderComparer.cs

@@ -0,0 +1,39 @@
+#pragma warning disable CS1591
+
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    public class IsFolderComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.IsFolder;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            return GetValue(x).CompareTo(GetValue(y));
+        }
+
+        /// <summary>
+        /// Gets the value.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <returns>System.String.</returns>
+        private static int GetValue(BaseItem? x)
+        {
+            return x?.IsFolder ?? true ? 0 : 1;
+        }
+    }
+}

Emby.Server.Implementations/Sorting/IsPlayedComparer.cs

@@ -0,0 +1,60 @@
+#nullable disable
+
+#pragma warning disable CS1591
+
+using Jellyfin.Data.Enums;
+using Jellyfin.Database.Implementations.Entities;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Sorting;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    public class IsPlayedComparer : IUserBaseItemComparer
+    {
+        /// <summary>
+        /// Gets or sets the user.
+        /// </summary>
+        /// <value>The user.</value>
+        public User User { get; set; }
+
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.IsUnplayed;
+
+        /// <summary>
+        /// Gets or sets the user data manager.
+        /// </summary>
+        /// <value>The user data manager.</value>
+        public IUserDataManager UserDataManager { get; set; }
+
+        /// <summary>
+        /// Gets or sets the user manager.
+        /// </summary>
+        /// <value>The user manager.</value>
+        public IUserManager UserManager { get; set; }
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem x, BaseItem y)
+        {
+            return GetValue(x).CompareTo(GetValue(y));
+        }
+
+        /// <summary>
+        /// Gets the date.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <returns>DateTime.</returns>
+        private int GetValue(BaseItem x)
+        {
+            return x.IsPlayed(User, userItemData: null) ? 0 : 1;
+        }
+    }
+}

Emby.Server.Implementations/Sorting/IsUnplayedComparer.cs

@@ -0,0 +1,60 @@
+#nullable disable
+
+#pragma warning disable CS1591
+
+using Jellyfin.Data.Enums;
+using Jellyfin.Database.Implementations.Entities;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Sorting;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    public class IsUnplayedComparer : IUserBaseItemComparer
+    {
+        /// <summary>
+        /// Gets or sets the user.
+        /// </summary>
+        /// <value>The user.</value>
+        public User User { get; set; }
+
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.IsUnplayed;
+
+        /// <summary>
+        /// Gets or sets the user data manager.
+        /// </summary>
+        /// <value>The user data manager.</value>
+        public IUserDataManager UserDataManager { get; set; }
+
+        /// <summary>
+        /// Gets or sets the user manager.
+        /// </summary>
+        /// <value>The user manager.</value>
+        public IUserManager UserManager { get; set; }
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem x, BaseItem y)
+        {
+            return GetValue(x).CompareTo(GetValue(y));
+        }
+
+        /// <summary>
+        /// Gets the date.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <returns>DateTime.</returns>
+        private int GetValue(BaseItem x)
+        {
+            return x.IsUnplayed(User, userItemData: null) ? 0 : 1;
+        }
+    }
+}

Emby.Server.Implementations/Sorting/NameComparer.cs

@@ -0,0 +1,35 @@
+using System;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    /// <summary>
+    /// Class NameComparer.
+    /// </summary>
+    public class NameComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.Name;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            ArgumentNullException.ThrowIfNull(x);
+
+            ArgumentNullException.ThrowIfNull(y);
+
+            return string.Compare(x.Name, y.Name, StringComparison.OrdinalIgnoreCase);
+        }
+    }
+}

Emby.Server.Implementations/Sorting/OfficialRatingComparer.cs

@@ -0,0 +1,54 @@
+using System;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Entities;
+using MediaBrowser.Model.Globalization;
+
+namespace Emby.Server.Implementations.Sorting;
+
+/// <summary>
+/// Class providing comparison for official ratings.
+/// </summary>
+public class OfficialRatingComparer : IBaseItemComparer
+{
+    private readonly ILocalizationManager _localizationManager;
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="OfficialRatingComparer"/> class.
+    /// </summary>
+    /// <param name="localizationManager">Instance of the <see cref="ILocalizationManager"/> interface.</param>
+    public OfficialRatingComparer(ILocalizationManager localizationManager)
+    {
+        _localizationManager = localizationManager;
+    }
+
+    /// <summary>
+    /// Gets the name.
+    /// </summary>
+    /// <value>The name.</value>
+    public ItemSortBy Type => ItemSortBy.OfficialRating;
+
+    /// <summary>
+    /// Compares the specified x.
+    /// </summary>
+    /// <param name="x">The x.</param>
+    /// <param name="y">The y.</param>
+    /// <returns>System.Int32.</returns>
+    public int Compare(BaseItem? x, BaseItem? y)
+    {
+        ArgumentNullException.ThrowIfNull(x);
+        ArgumentNullException.ThrowIfNull(y);
+        var zeroRating = new ParentalRatingScore(0, 0);
+
+        var ratingX = string.IsNullOrEmpty(x.OfficialRating) ? zeroRating : _localizationManager.GetRatingScore(x.OfficialRating) ?? zeroRating;
+        var ratingY = string.IsNullOrEmpty(y.OfficialRating) ? zeroRating : _localizationManager.GetRatingScore(y.OfficialRating) ?? zeroRating;
+        var scoreCompare = ratingX.Score.CompareTo(ratingY.Score);
+        if (scoreCompare is 0)
+        {
+            return (ratingX.SubScore ?? 0).CompareTo(ratingY.SubScore ?? 0);
+        }
+
+        return scoreCompare;
+    }
+}

Emby.Server.Implementations/Sorting/ParentIndexNumberComparer.cs

@@ -0,0 +1,50 @@
+using System;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    /// <summary>
+    /// Class ParentIndexNumberComparer.
+    /// </summary>
+    public class ParentIndexNumberComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.ParentIndexNumber;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            ArgumentNullException.ThrowIfNull(x);
+
+            ArgumentNullException.ThrowIfNull(y);
+
+            if (!x.ParentIndexNumber.HasValue && !y.ParentIndexNumber.HasValue)
+            {
+                return 0;
+            }
+
+            if (!x.ParentIndexNumber.HasValue)
+            {
+                return -1;
+            }
+
+            if (!y.ParentIndexNumber.HasValue)
+            {
+                return 1;
+            }
+
+            return x.ParentIndexNumber.Value.CompareTo(y.ParentIndexNumber.Value);
+        }
+    }
+}

Emby.Server.Implementations/Sorting/PlayCountComparer.cs

@@ -0,0 +1,64 @@
+#nullable disable
+
+using Jellyfin.Data.Enums;
+using Jellyfin.Database.Implementations.Entities;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    /// <summary>
+    /// Class PlayCountComparer.
+    /// </summary>
+    public class PlayCountComparer : IUserBaseItemComparer
+    {
+        /// <summary>
+        /// Gets or sets the user.
+        /// </summary>
+        /// <value>The user.</value>
+        public User User { get; set; }
+
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.PlayCount;
+
+        /// <summary>
+        /// Gets or sets the user data manager.
+        /// </summary>
+        /// <value>The user data manager.</value>
+        public IUserDataManager UserDataManager { get; set; }
+
+        /// <summary>
+        /// Gets or sets the user manager.
+        /// </summary>
+        /// <value>The user manager.</value>
+        public IUserManager UserManager { get; set; }
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem x, BaseItem y)
+        {
+            return GetValue(x).CompareTo(GetValue(y));
+        }
+
+        /// <summary>
+        /// Gets the date.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <returns>DateTime.</returns>
+        private int GetValue(BaseItem x)
+        {
+            var userdata = UserDataManager.GetUserData(User, x);
+
+            return userdata is null ? 0 : userdata.PlayCount;
+        }
+    }
+}

Emby.Server.Implementations/Sorting/PremiereDateComparer.cs

@@ -0,0 +1,63 @@
+using System;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    /// <summary>
+    /// Class PremiereDateComparer.
+    /// </summary>
+    public class PremiereDateComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.PremiereDate;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            return GetDate(x).CompareTo(GetDate(y));
+        }
+
+        /// <summary>
+        /// Gets the date.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <returns>DateTime.</returns>
+        private static DateTime GetDate(BaseItem? x)
+        {
+            if (x is null)
+            {
+                return DateTime.MinValue;
+            }
+
+            if (x.PremiereDate.HasValue)
+            {
+                return x.PremiereDate.Value;
+            }
+
+            if (x.ProductionYear.HasValue)
+            {
+                try
+                {
+                    return new DateTime(x.ProductionYear.Value, 1, 1, 0, 0, 0, DateTimeKind.Utc);
+                }
+                catch (ArgumentOutOfRangeException)
+                {
+                    // Don't blow up if the item has a bad ProductionYear, just return MinValue
+                }
+            }
+
+            return DateTime.MinValue;
+        }
+    }
+}

Emby.Server.Implementations/Sorting/ProductionYearComparer.cs

@@ -0,0 +1,55 @@
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    /// <summary>
+    /// Class ProductionYearComparer.
+    /// </summary>
+    public class ProductionYearComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.ProductionYear;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            return GetValue(x).CompareTo(GetValue(y));
+        }
+
+        /// <summary>
+        /// Gets the date.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <returns>DateTime.</returns>
+        private static int GetValue(BaseItem? x)
+        {
+            if (x is null)
+            {
+                return 0;
+            }
+
+            if (x.ProductionYear.HasValue)
+            {
+                return x.ProductionYear.Value;
+            }
+
+            if (x.PremiereDate.HasValue)
+            {
+                return x.PremiereDate.Value.Year;
+            }
+
+            return 0;
+        }
+    }
+}

Emby.Server.Implementations/Sorting/RandomComparer.cs

@@ -0,0 +1,31 @@
+using System;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    /// <summary>
+    /// Class RandomComparer.
+    /// </summary>
+    public class RandomComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.Random;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            return Guid.NewGuid().CompareTo(Guid.NewGuid());
+        }
+    }
+}

Emby.Server.Implementations/Sorting/RuntimeComparer.cs

@@ -0,0 +1,34 @@
+using System;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    /// <summary>
+    /// Class RuntimeComparer.
+    /// </summary>
+    public class RuntimeComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.Runtime;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            ArgumentNullException.ThrowIfNull(x);
+            ArgumentNullException.ThrowIfNull(y);
+
+            return (x.RunTimeTicks ?? 0).CompareTo(y.RunTimeTicks ?? 0);
+        }
+    }
+}

Emby.Server.Implementations/Sorting/SeriesSortNameComparer.cs

@@ -0,0 +1,36 @@
+#pragma warning disable CS1591
+
+using System;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    public class SeriesSortNameComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.SeriesSortName;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            return string.Compare(GetValue(x), GetValue(y), StringComparison.OrdinalIgnoreCase);
+        }
+
+        private static string? GetValue(BaseItem? item)
+        {
+            var hasSeries = item as IHasSeries;
+            return hasSeries?.FindSeriesSortName();
+        }
+    }
+}

Emby.Server.Implementations/Sorting/SortNameComparer.cs

@@ -0,0 +1,34 @@
+using System;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Sorting;
+using MediaBrowser.Model.Querying;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    /// <summary>
+    /// Class SortNameComparer.
+    /// </summary>
+    public class SortNameComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.SortName;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            ArgumentNullException.ThrowIfNull(x);
+            ArgumentNullException.ThrowIfNull(y);
+
+            return string.Compare(x.SortName, y.SortName, StringComparison.OrdinalIgnoreCase);
+        }
+    }
+}

Emby.Server.Implementations/Sorting/StartDateComparer.cs

@@ -0,0 +1,45 @@
+#pragma warning disable CS1591
+
+using System;
+using Jellyfin.Data.Enums;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.LiveTv;
+using MediaBrowser.Controller.Sorting;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    public class StartDateComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.StartDate;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            return GetDate(x).CompareTo(GetDate(y));
+        }
+
+        /// <summary>
+        /// Gets the date.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <returns>DateTime.</returns>
+        private static DateTime GetDate(BaseItem? x)
+        {
+            if (x is LiveTvProgram hasStartDate)
+            {
+                return hasStartDate.StartDate;
+            }
+
+            return DateTime.MinValue;
+        }
+    }
+}

Emby.Server.Implementations/Sorting/StudioComparer.cs

@@ -0,0 +1,34 @@
+#pragma warning disable CS1591
+
+using System;
+using System.Globalization;
+using Jellyfin.Data.Enums;
+using Jellyfin.Extensions;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Sorting;
+
+namespace Emby.Server.Implementations.Sorting
+{
+    public class StudioComparer : IBaseItemComparer
+    {
+        /// <summary>
+        /// Gets the name.
+        /// </summary>
+        /// <value>The name.</value>
+        public ItemSortBy Type => ItemSortBy.Studio;
+
+        /// <summary>
+        /// Compares the specified x.
+        /// </summary>
+        /// <param name="x">The x.</param>
+        /// <param name="y">The y.</param>
+        /// <returns>System.Int32.</returns>
+        public int Compare(BaseItem? x, BaseItem? y)
+        {
+            ArgumentNullException.ThrowIfNull(x);
+            ArgumentNullException.ThrowIfNull(y);
+
+            return CultureInfo.InvariantCulture.CompareInfo.Compare(x.Studios.FirstOrDefault(), y.Studios.FirstOrDefault(), CompareOptions.NumericOrdering);
+        }
+    }
+}