From 9f7057899745e385ccea062497d0aa787e938339 Mon Sep 17 00:00:00 2001
From: Kevin Jilissen <32480819+Kevinjil@users.noreply.github.com>
Date: Fri, 28 Mar 2025 01:06:10 +0100
Subject: [PATCH] Add channel queries to series (#13356)

Currently, the IChannel interface can deliver channel result folders which are interpreted as series and seasons. However, Jellyfin does not query for the contents of these folders when viewing said serie of season. This results in empty series in the API.
---
 MediaBrowser.Controller/Entities/BaseItem.cs  |  3 +-
 MediaBrowser.Controller/Entities/TV/Season.cs | 16 +++++++++
 MediaBrowser.Controller/Entities/TV/Series.cs | 35 ++++++++++++++++++-
 3 files changed, 52 insertions(+), 2 deletions(-)

diff --git a/MediaBrowser.Controller/Entities/BaseItem.cs b/MediaBrowser.Controller/Entities/BaseItem.cs
index 1dd289631d..53c832ff37 100644
--- a/MediaBrowser.Controller/Entities/BaseItem.cs
+++ b/MediaBrowser.Controller/Entities/BaseItem.cs
@@ -23,6 +23,7 @@ using MediaBrowser.Controller.Chapters;
 using MediaBrowser.Controller.Configuration;
 using MediaBrowser.Controller.Dto;
 using MediaBrowser.Controller.Entities.Audio;
+using MediaBrowser.Controller.Entities.TV;
 using MediaBrowser.Controller.Library;
 using MediaBrowser.Controller.Persistence;
 using MediaBrowser.Controller.Providers;
@@ -1683,7 +1684,7 @@ namespace MediaBrowser.Controller.Entities
 
         public virtual string GetClientTypeName()
         {
-            if (IsFolder && SourceType == SourceType.Channel && this is not Channel)
+            if (IsFolder && SourceType == SourceType.Channel && this is not Channel && this is not Season && this is not Series)
             {
                 return "ChannelFolderItem";
             }
diff --git a/MediaBrowser.Controller/Entities/TV/Season.cs b/MediaBrowser.Controller/Entities/TV/Season.cs
index 1293528fba..408161b03d 100644
--- a/MediaBrowser.Controller/Entities/TV/Season.cs
+++ b/MediaBrowser.Controller/Entities/TV/Season.cs
@@ -7,6 +7,7 @@ using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
 using System.Text.Json.Serialization;
+using System.Threading;
 using Jellyfin.Data.Enums;
 using Jellyfin.Database.Implementations.Entities;
 using Jellyfin.Extensions;
@@ -152,6 +153,21 @@ namespace MediaBrowser.Controller.Entities.TV
 
         protected override QueryResult<BaseItem> GetItemsInternal(InternalItemsQuery query)
         {
+            if (SourceType == SourceType.Channel)
+            {
+                try
+                {
+                    query.Parent = this;
+                    query.ChannelIds = new[] { ChannelId };
+                    return ChannelManager.GetChannelItemsInternal(query, new Progress<double>(), CancellationToken.None).GetAwaiter().GetResult();
+                }
+                catch
+                {
+                    // Already logged at lower levels
+                    return new QueryResult<BaseItem>();
+                }
+            }
+
             if (query.User is null)
             {
                 return base.GetItemsInternal(query);
diff --git a/MediaBrowser.Controller/Entities/TV/Series.cs b/MediaBrowser.Controller/Entities/TV/Series.cs
index 5dad158519..8d55576224 100644
--- a/MediaBrowser.Controller/Entities/TV/Series.cs
+++ b/MediaBrowser.Controller/Entities/TV/Series.cs
@@ -226,6 +226,21 @@ namespace MediaBrowser.Controller.Entities.TV
         {
             var user = query.User;
 
+            if (SourceType == SourceType.Channel)
+            {
+                try
+                {
+                    query.Parent = this;
+                    query.ChannelIds = [ChannelId];
+                    return ChannelManager.GetChannelItemsInternal(query, new Progress<double>(), CancellationToken.None).GetAwaiter().GetResult();
+                }
+                catch
+                {
+                    // Already logged at lower levels
+                    return new QueryResult<BaseItem>();
+                }
+            }
+
             if (query.Recursive)
             {
                 var seriesKey = GetUniqueSeriesKey(this);
@@ -372,7 +387,25 @@ namespace MediaBrowser.Controller.Entities.TV
                 query.IsMissing = false;
             }
 
-            var allItems = LibraryManager.GetItemList(query);
+            IReadOnlyList<BaseItem> allItems;
+            if (SourceType == SourceType.Channel)
+            {
+                try
+                {
+                    query.Parent = parentSeason;
+                    query.ChannelIds = [ChannelId];
+                    allItems = [.. ChannelManager.GetChannelItemsInternal(query, new Progress<double>(), CancellationToken.None).GetAwaiter().GetResult().Items];
+                }
+                catch
+                {
+                    // Already logged at lower levels
+                    return [];
+                }
+            }
+            else
+            {
+                allItems = LibraryManager.GetItemList(query);
+            }
 
             return GetSeasonEpisodes(parentSeason, user, allItems, options, shouldIncludeMissingEpisodes);
         }