Refactor Transformer (add Scriban) (#562)

src/WireMock.Net/Transformers/Handlebars/HandlebarsContextFactory.cs

@@ -0,0 +1,39 @@
+using System;
+using HandlebarsDotNet;
+using JetBrains.Annotations;
+using WireMock.Handlers;
+
+namespace WireMock.Transformers.Handlebars
+{
+    internal class HandlebarsContextFactory : ITransformerContextFactory
+    {
+        private static readonly HandlebarsConfiguration HandlebarsConfiguration = new HandlebarsConfiguration
+        {
+            UnresolvedBindingFormatter = "{0}"
+        };
+
+        private readonly IFileSystemHandler _fileSystemHandler;
+        private readonly Action<IHandlebars, IFileSystemHandler> _action;
+
+        public HandlebarsContextFactory([NotNull] IFileSystemHandler fileSystemHandler, [CanBeNull] Action<IHandlebars, IFileSystemHandler> action)
+        {
+            _fileSystemHandler = fileSystemHandler ?? throw new ArgumentNullException(nameof(fileSystemHandler));
+            _action = action;
+        }
+
+        public ITransformerContext Create()
+        {
+            var handlebars = HandlebarsDotNet.Handlebars.Create(HandlebarsConfiguration);
+
+            WireMockHandlebarsHelpers.Register(handlebars, _fileSystemHandler);
+
+            _action?.Invoke(handlebars, _fileSystemHandler);
+
+            return new HandlebarsContext
+            {
+                Handlebars = handlebars,
+                FileSystemHandler = _fileSystemHandler
+            };
+        }
+    }
+}