feat: add configuration for episode numbering scheme

Jellyfin.Plugin.TubeArchivistMetadata/Configuration/NumberingScheme.cs

@@ -0,0 +1,17 @@
+namespace Jellyfin.Plugin.TubeArchivistMetadata.Configuration;
+
+/// <summary>
+/// The NumberingScheme.
+/// </summary>
+public enum NumberingScheme
+{
+    /// <summary>
+    /// Default (no numbering).
+    /// </summary>
+    Default,
+
+    /// <summary>
+    /// YYYYMMDD (e.g. 20250804 for August 4th, 2025).
+    /// </summary>
+    YYYYMMDD,
+}

Jellyfin.Plugin.TubeArchivistMetadata/Configuration/PluginConfiguration.cs

@@ -148,6 +148,11 @@ namespace Jellyfin.Plugin.TubeArchivistMetadata.Configuration
         /// </summary>
         public int TAJFTaskInterval { get; set; }
 
+        /// <summary>
+        /// Gets or sets the preferred numbering scheme for episodes (index number) in Jellyfin.
+        /// </summary>
+        public NumberingScheme EpisodeNumberingScheme { get; set; } = NumberingScheme.Default;
+
         /// <summary>
         /// Gets the playback progress owners Jellyfin usernames to synchronize data from TubeArchivist.
         /// </summary>

Jellyfin.Plugin.TubeArchivistMetadata/Configuration/configPage.html

@@ -79,6 +79,18 @@
                         <div class="fieldDescription">This is the TubeArchivist to Jellyfin playback progress
                             synchronization interval in seconds (Jellyfin restart required).</div>
                     </div>
+                    <div class="selectContainer">
+                        <label class="selectLabel" for="EpisodeNumberingScheme">Episode numbering scheme</label>
+                        <select is="emby-select" id="EpisodeNumberingScheme" name="EpisodeNumberingScheme" label="Description markup" class="emby-select-withcolor emby-select">
+                            <option value="Default">Default (no specified numbering)</option>
+                            <option value="YYYYMMDD">YYYYMMDD (e.g. 20250804 for August 4th, 2025)</option>
+                        </select>
+                        <div class="selectArrowContainer">
+                            <span class="selectArrow material-icons keyboard_arrow_down" aria-hidden="true"></span>
+                        </div>
+                        <div class="fieldDescription">This is the numbering scheme for episodes in Jellyfin (IndexNumber). 
+                            Default is the same as no numbering which allows Jellyfin to use the fallback numbering scheme.</div>
+                    </div>
                     <div>
                         <button is="emby-button" type="submit" class="raised button-submit block emby-button">
                             <span>Save</span>
@@ -105,6 +117,7 @@
                         document.querySelector('#TAJFSync').checked = config.TAJFSync;
                         document.querySelector('#JFUsernameFrom').value = config.JFUsernameFrom;
                         document.querySelector('#TAJFTaskInterval').value = config.TAJFTaskInterval;
+                        document.querySelector('#EpisodeNumberingScheme').value = config.EpisodeNumberingScheme;
                         Dashboard.hideLoadingMsg();
                     });
                 });
@@ -122,6 +135,7 @@
                         config.TAJFSync = document.querySelector('#TAJFSync').checked;
                         config.JFUsernameFrom = document.querySelector('#JFUsernameFrom').value;
                         config.TAJFTaskInterval = document.querySelector('#TAJFTaskInterval').value;
+                        config.EpisodeNumberingScheme = document.querySelector('#EpisodeNumberingScheme').value;
                         ApiClient.updatePluginConfiguration(TAMetadataConfig.pluginUniqueId, config).then(function (result) {
                             Dashboard.processPluginConfigurationUpdateResult(result);
                         });

Jellyfin.Plugin.TubeArchivistMetadata/TubeArchivist/Video/Video.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Globalization;
 using System.Linq;
+using Jellyfin.Plugin.TubeArchivistMetadata.Configuration;
 using Jellyfin.Plugin.TubeArchivistMetadata.Utilities;
 using MediaBrowser.Controller.Entities;
 using MediaBrowser.Controller.Entities.TV;
@@ -126,7 +127,11 @@ namespace Jellyfin.Plugin.TubeArchivistMetadata.TubeArchivist
                 Overview = Utils.FormatDescription(Description),
                 SeasonName = Published.Year.ToString(CultureInfo.CurrentCulture),
                 ParentIndexNumber = Published.Year,
-                IndexNumber = (Published.Year * 10000) + (Published.Month * 100) + Published.Day,
+                IndexNumber = Plugin.Instance?.Configuration?.EpisodeNumberingScheme switch
+                {
+                    NumberingScheme.YYYYMMDD => (Published.Year * 10000) + (Published.Month * 100) + Published.Day,
+                    _ => null
+                },
                 SeriesName = Channel.Name,
                 ProductionYear = Published.Year,
                 PremiereDate = Published,