From 4ebce3907062ade1937440628eebd665440b338d Mon Sep 17 00:00:00 2001
From: Shadowghost <Ghost_of_Stone@web.de>
Date: Sun, 3 May 2026 23:43:01 +0200
Subject: Implement Similarity providers

---
 .../LiveTvProgramSimilarItemsProvider.cs           | 94 ++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 Emby.Server.Implementations/Library/SimilarItems/LiveTvProgramSimilarItemsProvider.cs

(limited to 'Emby.Server.Implementations/Library/SimilarItems/LiveTvProgramSimilarItemsProvider.cs')

diff --git a/Emby.Server.Implementations/Library/SimilarItems/LiveTvProgramSimilarItemsProvider.cs b/Emby.Server.Implementations/Library/SimilarItems/LiveTvProgramSimilarItemsProvider.cs
new file mode 100644
index 0000000000..7665ee2f79
--- /dev/null
+++ b/Emby.Server.Implementations/Library/SimilarItems/LiveTvProgramSimilarItemsProvider.cs
@@ -0,0 +1,94 @@
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using Jellyfin.Data.Enums;
+using Jellyfin.Database.Implementations.Enums;
+using MediaBrowser.Controller.Configuration;
+using MediaBrowser.Controller.Dto;
+using MediaBrowser.Controller.Entities;
+using MediaBrowser.Controller.Library;
+using MediaBrowser.Controller.LiveTv;
+using MediaBrowser.Model.Configuration;
+
+namespace Emby.Server.Implementations.Library.SimilarItems;
+
+/// <summary>
+/// Provides similar items for Live TV programs.
+/// </summary>
+public class LiveTvProgramSimilarItemsProvider : ILocalSimilarItemsProvider<LiveTvProgram>
+{
+    private readonly ILibraryManager _libraryManager;
+    private readonly IServerConfigurationManager _serverConfigurationManager;
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="LiveTvProgramSimilarItemsProvider"/> class.
+    /// </summary>
+    /// <param name="libraryManager">The library manager.</param>
+    /// <param name="serverConfigurationManager">The server configuration manager.</param>
+    public LiveTvProgramSimilarItemsProvider(
+        ILibraryManager libraryManager,
+        IServerConfigurationManager serverConfigurationManager)
+    {
+        _libraryManager = libraryManager;
+        _serverConfigurationManager = serverConfigurationManager;
+    }
+
+    /// <inheritdoc/>
+    public string Name => "Local Genre/Tag";
+
+    /// <inheritdoc/>
+    public MetadataPluginType Type => MetadataPluginType.LocalSimilarityProvider;
+
+    /// <inheritdoc/>
+    public Task<IReadOnlyList<BaseItem>> GetSimilarItemsAsync(LiveTvProgram item, SimilarItemsQuery query, CancellationToken cancellationToken)
+    {
+        BaseItemKind[] includeItemTypes;
+        bool enableGroupByMetadataKey;
+        bool enableTotalRecordCount;
+
+        if (item.IsMovie)
+        {
+            // Movie-like program
+            var itemTypes = new List<BaseItemKind> { BaseItemKind.Movie };
+
+            if (_serverConfigurationManager.Configuration.EnableExternalContentInSuggestions)
+            {
+                itemTypes.Add(BaseItemKind.Trailer);
+                itemTypes.Add(BaseItemKind.LiveTvProgram);
+            }
+
+            includeItemTypes = [.. itemTypes];
+            enableGroupByMetadataKey = true;
+            enableTotalRecordCount = false;
+        }
+        else if (item.IsSeries)
+        {
+            // Series-like program
+            includeItemTypes = [BaseItemKind.Series];
+            enableGroupByMetadataKey = false;
+            enableTotalRecordCount = true;
+        }
+        else
+        {
+            // Default - match same type
+            includeItemTypes = [item.GetBaseItemKind()];
+            enableGroupByMetadataKey = false;
+            enableTotalRecordCount = true;
+        }
+
+        var internalQuery = new InternalItemsQuery(query.User)
+        {
+            Genres = item.Genres,
+            Tags = item.Tags,
+            Limit = query.Limit,
+            DtoOptions = query.DtoOptions ?? new DtoOptions(),
+            ExcludeItemIds = [.. query.ExcludeItemIds],
+            IncludeItemTypes = includeItemTypes,
+            EnableGroupByMetadataKey = enableGroupByMetadataKey,
+            EnableTotalRecordCount = enableTotalRecordCount,
+            OrderBy = [(ItemSortBy.Random, SortOrder.Ascending)]
+        };
+
+        return Task.FromResult(_libraryManager.GetItemList(internalQuery));
+    }
+}
-- 
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