From 83b72d568b573daa82d406fd5f174bf0c5c61dce Mon Sep 17 00:00:00 2001
From: Kasuromi <29818914+Kasuromi@users.noreply.github.com>
Date: Thu, 5 May 2022 23:31:48 +0300
Subject: [PATCH] Add config option for forced detour provider

---
 BepInEx.IL2CPP/Hook/NativeDetourHelper.cs | 28 +++++++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

diff --git a/BepInEx.IL2CPP/Hook/NativeDetourHelper.cs b/BepInEx.IL2CPP/Hook/NativeDetourHelper.cs
index 25a70fa..9a9d79f 100644
--- a/BepInEx.IL2CPP/Hook/NativeDetourHelper.cs
+++ b/BepInEx.IL2CPP/Hook/NativeDetourHelper.cs
@@ -1,3 +1,4 @@
+using BepInEx.Configuration;
 using BepInEx.IL2CPP.Hook.Dobby;
 using BepInEx.IL2CPP.Hook.Funchook;
 using System;
@@ -7,11 +8,34 @@ namespace BepInEx.IL2CPP.Hook;
 
 public class NativeDetourHelper
 {
+    internal enum DetourProvider
+    {
+        Default,
+        Dobby,
+        Funchook
+    }
+    private static readonly ConfigEntry<DetourProvider> DetourProviderType = ConfigFile.CoreConfig.Bind(
+        "Detours", "DetourProviderType",
+        DetourProvider.Default,
+        "The native provider to use for managed detours"
+    );
+
     public static bool DEBUG_DETOURS = false;
+
+    private static INativeDetour CreateDefault(nint original, nint target)
+    {
+        // TODO: check and provide an OS accurate provider
+        return new DobbyDetour(original, target);
+    }
+
     public static INativeDetour Create(nint original, nint target)
     {
-        return new DobbyDetour(original, target);
-        //return new FunchookDetour(original, target);
+        return DetourProviderType.Value switch
+        {
+            DetourProvider.Dobby => new DobbyDetour(original, target),
+            DetourProvider.Funchook => new FunchookDetour(original, target),
+            _ => CreateDefault(original, target)
+        };
     }
 
     public static INativeDetour CreateAndApply<T>(nint from, T to, out T original, CallingConvention? callingConvention = null)