Revert preview feature

Source/AudibleUtilities/ApiExtended.cs

@@ -154,19 +154,27 @@ namespace AudibleUtilities
 #if DEBUG
 			//System.IO.File.WriteAllText(library_json, AudibleApi.Common.Converter.ToJson(items));
 #endif
-			var exceptions = new List<Exception>();
-
-			exceptions.AddRange(IValidator.Validate<LibraryValidator>(items));
-			exceptions.AddRange(IValidator.Validate<BookValidator>(items));
-			exceptions.AddRange(IValidator.Validate<CategoryValidator>(items));
-			exceptions.AddRange(IValidator.Validate<ContributorValidator>(items));
-			exceptions.AddRange(IValidator.Validate<SeriesValidator>(items));
-
-			if (exceptions.Any())
-				throw new AggregateException(exceptions);
+			var validators = new List<IValidator>();
+			validators.AddRange(getValidators());
+			foreach (var v in validators)
+			{
+				var exceptions = v.Validate(items);
+				if (exceptions is not null && exceptions.Any())
+					throw new AggregateException(exceptions);
+			}
 			return items;
 		}
 
+		private static List<IValidator> getValidators()
+		{
+			var type = typeof(IValidator);
+			var types = AppDomain.CurrentDomain.GetAssemblies()
+				.SelectMany(s => s.GetTypes())
+				.Where(p => type.IsAssignableFrom(p) && !p.IsInterface);
+
+			return types.Select(t => Activator.CreateInstance(t) as IValidator).ToList();
+		}
+
 		#region episodes and podcasts
 
 		private async Task<List<Item>> getChildEpisodesAsync(SemaphoreSlim concurrencySemaphore, Item parent)

Source/AudibleUtilities/AudibleApiValidators.cs

@@ -7,14 +7,11 @@ namespace AudibleUtilities
 {
 	public interface IValidator
 	{
-		public static abstract IEnumerable<Exception> Validate(IEnumerable<Item> items);
-		public static IEnumerable<Exception> Validate<T>(IEnumerable<Item> items)
-			where T : IValidator
-			=> T.Validate(items);
+		IEnumerable<Exception> Validate(IEnumerable<Item> items);
 	}
 	public class LibraryValidator : IValidator
 	{
-		public static IEnumerable<Exception> Validate(IEnumerable<Item> items)
+		public IEnumerable<Exception> Validate(IEnumerable<Item> items)
 		{
 			var exceptions = new List<Exception>();
 
@@ -28,7 +25,7 @@ namespace AudibleUtilities
 	}
 	public class BookValidator : IValidator
 	{
-		public static IEnumerable<Exception> Validate(IEnumerable<Item> items)
+		public IEnumerable<Exception> Validate(IEnumerable<Item> items)
 		{
 			var exceptions = new List<Exception>();
 
@@ -46,7 +43,7 @@ namespace AudibleUtilities
 	}
 	public class CategoryValidator : IValidator
 	{
-		public static IEnumerable<Exception> Validate(IEnumerable<Item> items)
+		public IEnumerable<Exception> Validate(IEnumerable<Item> items)
 		{
 			var exceptions = new List<Exception>();
 
@@ -61,7 +58,7 @@ namespace AudibleUtilities
 	}
 	public class ContributorValidator : IValidator
 	{
-		public static IEnumerable<Exception> Validate(IEnumerable<Item> items)
+		public IEnumerable<Exception> Validate(IEnumerable<Item> items)
 		{
 			var exceptions = new List<Exception>();
 
@@ -75,7 +72,7 @@ namespace AudibleUtilities
 	}
 	public class SeriesValidator : IValidator
 	{
-		public static IEnumerable<Exception> Validate(IEnumerable<Item> items)
+		public IEnumerable<Exception> Validate(IEnumerable<Item> items)
 		{
 			var exceptions = new List<Exception>();
 

Source/AudibleUtilities/AudibleUtilities.csproj

@@ -2,7 +2,6 @@
 
   <PropertyGroup>
     <TargetFramework>net6.0-windows</TargetFramework>
-	  <EnablePreviewFeatures>True</EnablePreviewFeatures>
   </PropertyGroup>
 
   <ItemGroup>