Add foundation

2024-04-13 11:29:32 +01:00
parent 6f31aa8513
commit 053d8a851e
264 changed files with 3428 additions and 4683 deletions
@@ -0,0 +1,48 @@
+using System.Reflection;
+
+namespace Toolkit.Foundation;
+
+public class Mediator(IServiceProvider provider) :
+    IMediator
+{
+    public Task<TResponse?> SendAsync<TResponse>(IRequest<TResponse> request,
+        CancellationToken cancellationToken = default)
+    {
+        Type handlerType = typeof(HandlerWrapper<,>).MakeGenericType(request.GetType(),
+            typeof(TResponse));
+
+        if (provider.GetService(handlerType) 
+            is object handler)
+        {
+            if (handlerType.GetMethod("Handle") is MethodInfo handleMethod)
+            {
+                return (Task<TResponse?>)handleMethod.Invoke(handler, new object[] { request, cancellationToken })!;
+            }
+        }
+
+        return Task.FromResult<TResponse?>(default);
+    }
+
+    public Task<object?> SendAsync(object message,
+        CancellationToken cancellationToken = default)
+    {
+        if (message.GetType().GetInterface(typeof(IRequest<>).Name) is Type requestType &&
+            requestType.GetGenericArguments().Length == 1)
+        {
+            Type responseType = requestType.GetGenericArguments()[0];
+            Type handlerType = typeof(HandlerWrapper<,>).MakeGenericType(message.GetType(), 
+                responseType);
+
+            if (provider.GetService(handlerType) 
+                is object handler)
+            {
+                if (handlerType.GetMethod("Handle") is MethodInfo handleMethod)
+                {
+                    return (Task<object?>)handleMethod.Invoke(handler, new object[] { message, cancellationToken })!;
+                }
+            }
+        }
+
+        return Task.FromResult<object?>(default);
+    }
+}