From 9b29a49ad68d62338034eecf092b6fdffe43d748 Mon Sep 17 00:00:00 2001
From: Developer 02 <developer02@didaloghe.onmicrosoft.com>
Date: Mon, 19 May 2025 14:15:38 +0200
Subject: [PATCH] Refactor exception handling with new mapping system

Updated `GlobalExceptionHandlerOptions` to use a new `_registeredMappings` dictionary for `HttpExceptionMapping` objects, enhancing flexibility in mapping exceptions to HTTP responses. Renamed `RegisterException` to `Add` to reflect its new functionality. Removed the `HttpResponse` record definition and introduced a new `HttpExceptionMapping` record, which includes a static `Create` method for easier instantiation of mappings.
---
 .../GlobalExceptionHandlerOptions.cs                   | 10 ++++------
 .../HttpExceptionMapping.cs                            |  9 +++++++++
 DigitalData.Core.Exceptions.Middleware/HttpResponse.cs |  5 -----
 3 files changed, 13 insertions(+), 11 deletions(-)
 create mode 100644 DigitalData.Core.Exceptions.Middleware/HttpExceptionMapping.cs
 delete mode 100644 DigitalData.Core.Exceptions.Middleware/HttpResponse.cs

diff --git a/DigitalData.Core.Exceptions.Middleware/GlobalExceptionHandlerOptions.cs b/DigitalData.Core.Exceptions.Middleware/GlobalExceptionHandlerOptions.cs
index 239425b..d051d96 100644
--- a/DigitalData.Core.Exceptions.Middleware/GlobalExceptionHandlerOptions.cs
+++ b/DigitalData.Core.Exceptions.Middleware/GlobalExceptionHandlerOptions.cs
@@ -1,14 +1,12 @@
-using System.Net;
-
-namespace DigitalData.Core.Exceptions.Middleware;
+namespace DigitalData.Core.Exceptions.Middleware;
 
 public class GlobalExceptionHandlerOptions
 {
-    private readonly Dictionary<Type, HttpResponse> _registeredExceptions = new();
+    private readonly Dictionary<Type, HttpExceptionMapping> _registeredMappings = new();
 
-    public GlobalExceptionHandlerOptions RegisterException<TException>(HttpStatusCode statusCode, string? message = null) where TException : Exception
+    public GlobalExceptionHandlerOptions Add(HttpExceptionMapping mapping)
     {
-        _registeredExceptions[typeof(TException)] = new HttpResponse(statusCode, message);
+        _registeredMappings[mapping.ExceptionType] = mapping;
         return this;
     }
 }
\ No newline at end of file
diff --git a/DigitalData.Core.Exceptions.Middleware/HttpExceptionMapping.cs b/DigitalData.Core.Exceptions.Middleware/HttpExceptionMapping.cs
new file mode 100644
index 0000000..e87c45c
--- /dev/null
+++ b/DigitalData.Core.Exceptions.Middleware/HttpExceptionMapping.cs
@@ -0,0 +1,9 @@
+using System.Net;
+
+namespace DigitalData.Core.Exceptions.Middleware;
+
+public record HttpExceptionMapping(Type ExceptionType, HttpStatusCode StatusCode, Func<Exception, string>? MessageFactory = null)
+{
+    public static HttpExceptionMapping Create<TException>(HttpStatusCode statusCode, Func<Exception, string>? messageFactory = null) where TException : Exception
+        => new HttpExceptionMapping(typeof(TException), statusCode, messageFactory);
+};
\ No newline at end of file
diff --git a/DigitalData.Core.Exceptions.Middleware/HttpResponse.cs b/DigitalData.Core.Exceptions.Middleware/HttpResponse.cs
deleted file mode 100644
index 37002ea..0000000
--- a/DigitalData.Core.Exceptions.Middleware/HttpResponse.cs
+++ /dev/null
@@ -1,5 +0,0 @@
-using System.Net;
-
-namespace DigitalData.Core.Exceptions.Middleware;
-
-public record HttpResponse(HttpStatusCode StatusCode, string? Message = null);
\ No newline at end of file