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AobaCore/Services/AobaIndexCreationService.cs

@@ -17,7 +17,9 @@ public class AobaIndexCreationService(IMongoDatabase db): BackgroundService
 	{
 		BsonSerializer.RegisterSerializer(new EnumSerializer<ThumbnailSize>(BsonType.String));
 		var textKeys = Builders<Media>.IndexKeys
-			.Text(m => m.Filename);
+			.Text(m => m.Filename)
+			.Text(m => m.Ext)
+			.Text(m => m.Tags);
 
 		var textModel = new CreateIndexModel<Media>(textKeys, new CreateIndexOptions
 		{

AobaCore/Services/AobaService.cs

@@ -95,4 +95,17 @@ public class AobaService(IMongoDatabase db)
 			//ignore if file was not found
 		}
 	}
+
+	public async Task DeriveTagsAsync(CancellationToken cancellationToken = default)
+	{
+		var mediaItems = await _media.Find(Builders<Media>.Filter.Exists(m => m.Tags, false))
+			.ToListAsync(cancellationToken);
+		Console.WriteLine($"Derving Tag for {mediaItems.Count} items");
+		foreach (var mediaItem in mediaItems)
+		{
+			mediaItem.Tags = Media.DeriveTags(mediaItem.Filename);
+			await _media.UpdateOneAsync(m => m.Id == mediaItem.Id, Builders<Media>.Update.Set(m => m.Tags, mediaItem.Tags), null, cancellationToken);
+		}
+		Console.WriteLine("All Tags Derived");
+	}
 }