Only save unique values of ProductionLocations, Studios, Tags, Artists and AlbumArtists

2 files changed, 19 insertions, 18 deletions

diff --git a/Jellyfin.Api/Controllers/ItemUpdateController.cs b/Jellyfin.Api/Controllers/ItemUpdateController.cs
index 605d2aeec..b12743396 100644
--- a/Jellyfin.Api/Controllers/ItemUpdateController.cs
+++ b/Jellyfin.Api/Controllers/ItemUpdateController.cs
@@ -270,7 +270,7 @@ public class ItemUpdateController : BaseJellyfinApiController
 
         if (request.Studios is not null)
         {
-            item.Studios = Array.ConvertAll(request.Studios, x => x.Name);
+            item.Studios = Array.ConvertAll(request.Studios, x => x.Name).Distinct(StringComparer.OrdinalIgnoreCase).ToArray();
         }
 
         if (request.DateCreated.HasValue)
@@ -287,7 +287,7 @@ public class ItemUpdateController : BaseJellyfinApiController
         item.CustomRating = request.CustomRating;
 
         var currentTags = item.Tags;
-        var newTags = request.Tags;
+        var newTags = request.Tags.Distinct(StringComparer.OrdinalIgnoreCase).ToArray();
         var removedTags = currentTags.Except(newTags).ToList();
         var addedTags = newTags.Except(currentTags).ToList();
         item.Tags = newTags;
@@ -373,7 +373,7 @@ public class ItemUpdateController : BaseJellyfinApiController
 
         if (request.ProductionLocations is not null)
         {
-            item.ProductionLocations = request.ProductionLocations;
+            item.ProductionLocations = request.ProductionLocations.Distinct(StringComparer.OrdinalIgnoreCase).ToArray();
         }
 
         item.PreferredMetadataCountryCode = request.PreferredMetadataCountryCode;
@@ -421,7 +421,7 @@ public class ItemUpdateController : BaseJellyfinApiController
         {
             if (item is IHasAlbumArtist hasAlbumArtists)
             {
-                hasAlbumArtists.AlbumArtists = Array.ConvertAll(request.AlbumArtists, i => i.Name.Trim());
+                hasAlbumArtists.AlbumArtists = Array.ConvertAll(request.AlbumArtists, i => i.Name.Trim()).Distinct(StringComparer.OrdinalIgnoreCase).ToArray();
             }
         }
 
@@ -429,7 +429,7 @@ public class ItemUpdateController : BaseJellyfinApiController
         {
             if (item is IHasArtist hasArtists)
             {
-                hasArtists.Artists = Array.ConvertAll(request.ArtistItems, i => i.Name.Trim());
+                hasArtists.Artists = Array.ConvertAll(request.ArtistItems, i => i.Name.Trim()).Distinct(StringComparer.OrdinalIgnoreCase).ToArray();
             }
         }
 
diff --git a/Jellyfin.Server.Implementations/Item/BaseItemRepository.cs b/Jellyfin.Server.Implementations/Item/BaseItemRepository.cs
index 5bb4494dd..cd28c6e43 100644
--- a/Jellyfin.Server.Implementations/Item/BaseItemRepository.cs
+++ b/Jellyfin.Server.Implementations/Item/BaseItemRepository.cs
@@ -683,14 +683,15 @@ public sealed class BaseItemRepository
             .SelectMany(f => f.Values)
             .Distinct()
             .ToArray();
+
+        var types = allListedItemValues.Select(e => e.MagicNumber).Distinct().ToArray();
+        var values = allListedItemValues.Select(e => e.Value).Distinct().ToArray();
+        var allListedItemValuesSet = allListedItemValues.ToHashSet();
+
         var existingValues = context.ItemValues
-            .Select(e => new
-            {
-                item = e,
-                Key = e.Type + "+" + e.Value
-            })
-            .Where(f => allListedItemValues.Select(e => $"{(int)e.MagicNumber}+{e.Value}").Contains(f.Key))
-            .Select(e => e.item)
+            .Where(e => types.Contains(e.Type) && values.Contains(e.Value))
+            .AsEnumerable()
+            .Where(e => allListedItemValuesSet.Contains((e.Type, e.Value)))
             .ToArray();
         var missingItemValues = allListedItemValues.Except(existingValues.Select(f => (MagicNumber: f.Type, f.Value))).Select(f => new ItemValue()
         {
@@ -1050,7 +1051,7 @@ public sealed class BaseItemRepository
         entity.TotalBitrate = dto.TotalBitrate;
         entity.ExternalId = dto.ExternalId;
         entity.Size = dto.Size;
-        entity.Genres = string.Join('|', dto.Genres);
+        entity.Genres = string.Join('|', dto.Genres.Distinct(StringComparer.OrdinalIgnoreCase));
         entity.DateCreated = dto.DateCreated == DateTime.MinValue ? null : dto.DateCreated;
         entity.DateModified = dto.DateModified == DateTime.MinValue ? null : dto.DateModified;
         entity.ChannelId = dto.ChannelId;
@@ -1077,9 +1078,9 @@ public sealed class BaseItemRepository
         }
 
         entity.ExtraIds = dto.ExtraIds is not null ? string.Join('|', dto.ExtraIds) : null;
-        entity.ProductionLocations = dto.ProductionLocations is not null ? string.Join('|', dto.ProductionLocations.Where(p => !string.IsNullOrWhiteSpace(p))) : null;
-        entity.Studios = dto.Studios is not null ? string.Join('|', dto.Studios) : null;
-        entity.Tags = dto.Tags is not null ? string.Join('|', dto.Tags) : null;
+        entity.ProductionLocations = dto.ProductionLocations is not null ? string.Join('|', dto.ProductionLocations.Where(p => !string.IsNullOrWhiteSpace(p)).Distinct(StringComparer.OrdinalIgnoreCase)) : null;
+        entity.Studios = dto.Studios is not null ? string.Join('|', dto.Studios.Distinct(StringComparer.OrdinalIgnoreCase)) : null;
+        entity.Tags = dto.Tags is not null ? string.Join('|', dto.Tags.Distinct(StringComparer.OrdinalIgnoreCase)) : null;
         entity.LockedFields = dto.LockedFields is not null ? dto.LockedFields
             .Select(e => new BaseItemMetadataField()
             {
@@ -1122,12 +1123,12 @@ public sealed class BaseItemRepository
 
         if (dto is IHasArtist hasArtists)
         {
-            entity.Artists = hasArtists.Artists is not null ? string.Join('|', hasArtists.Artists) : null;
+            entity.Artists = hasArtists.Artists is not null ? string.Join('|', hasArtists.Artists.Distinct(StringComparer.OrdinalIgnoreCase)) : null;
         }
 
         if (dto is IHasAlbumArtist hasAlbumArtists)
         {
-            entity.AlbumArtists = hasAlbumArtists.AlbumArtists is not null ? string.Join('|', hasAlbumArtists.AlbumArtists) : null;
+            entity.AlbumArtists = hasAlbumArtists.AlbumArtists is not null ? string.Join('|', hasAlbumArtists.AlbumArtists.Distinct(StringComparer.OrdinalIgnoreCase)) : null;
         }
 
         if (dto is LiveTvProgram program)