From 35eacdf329974d4821a9149ee5d9c4c54d0ac8e5 Mon Sep 17 00:00:00 2001
From: David Eriksson <david@activout.se>
Date: Mon, 25 Nov 2024 20:20:02 +0100
Subject: [PATCH] TaskConverter generation 3

Solves #37
---
 .../Helpers/Implementation/TaskConverter3.cs  | 35 +++++++++++++++++++
 .../Implementation/TaskConverter3Factory.cs   | 12 +++++++
 Activout.RestClient/Services.cs               |  2 +-
 3 files changed, 48 insertions(+), 1 deletion(-)
 create mode 100644 Activout.RestClient/Helpers/Implementation/TaskConverter3.cs
 create mode 100644 Activout.RestClient/Helpers/Implementation/TaskConverter3Factory.cs

diff --git a/Activout.RestClient/Helpers/Implementation/TaskConverter3.cs b/Activout.RestClient/Helpers/Implementation/TaskConverter3.cs
new file mode 100644
index 0000000..7e98bf6
--- /dev/null
+++ b/Activout.RestClient/Helpers/Implementation/TaskConverter3.cs
@@ -0,0 +1,35 @@
+using System;
+using System.Diagnostics;
+using System.Threading.Tasks;
+
+namespace Activout.RestClient.Helpers.Implementation;
+
+/*
+ * Convert from Task<object> to Task<T> where T is the Type
+ *
+ * Implemented by creating a TaskCompletionSource<T> and setting the result or exception
+ */
+public class TaskConverter3<T> : ITaskConverter
+{
+    [StackTraceHidden]
+    public object ConvertReturnType(Task<object> task)
+    {
+        return ConvertReturnTypeImpl(task);
+    }
+
+    [StackTraceHidden]
+    private static async Task<T> ConvertReturnTypeImpl(Task<object> task)
+    {
+        var taskCompletionSource = new TaskCompletionSource<T>();
+        try
+        {
+            taskCompletionSource.SetResult((T)await task);
+        }
+        catch (Exception e)
+        {
+            taskCompletionSource.SetException(e);
+        }
+
+        return await taskCompletionSource.Task;
+    }
+}
\ No newline at end of file
diff --git a/Activout.RestClient/Helpers/Implementation/TaskConverter3Factory.cs b/Activout.RestClient/Helpers/Implementation/TaskConverter3Factory.cs
new file mode 100644
index 0000000..a0af67b
--- /dev/null
+++ b/Activout.RestClient/Helpers/Implementation/TaskConverter3Factory.cs
@@ -0,0 +1,12 @@
+using System;
+
+namespace Activout.RestClient.Helpers.Implementation;
+
+public class TaskConverter3Factory : ITaskConverterFactory
+{
+    public ITaskConverter CreateTaskConverter(Type actualReturnType)
+    {
+        return actualReturnType == typeof(void) ? null : 
+            (ITaskConverter) Activator.CreateInstance(typeof(TaskConverter3<>).MakeGenericType(actualReturnType));
+    }
+}
\ No newline at end of file
diff --git a/Activout.RestClient/Services.cs b/Activout.RestClient/Services.cs
index 3b81ff2..06cd9e1 100644
--- a/Activout.RestClient/Services.cs
+++ b/Activout.RestClient/Services.cs
@@ -15,7 +15,7 @@ public static IDuckTyping CreateDuckTyping()
 
         public static ITaskConverterFactory CreateTaskConverterFactory()
         {
-            return new TaskConverter2Factory();
+            return new TaskConverter3Factory();
         }
 
         public static IRestClientFactory CreateRestClientFactory(