From f0835cb45cefc30b629c5ebbc99b04f305104562 Mon Sep 17 00:00:00 2001
From: mexisme <wildjim+dev@kiwinet.org>
Date: Tue, 10 Jan 2023 16:04:46 +1300
Subject: [PATCH] Extract "surface-control" management into new option-enabled
 module

---
 microsoft/surface/common/default.nix          |  1 +
 .../common/surface-control/default.nix        | 25 +++++++++++++++++++
 microsoft/surface/default.nix                 |  9 +------
 3 files changed, 27 insertions(+), 8 deletions(-)
 create mode 100644 microsoft/surface/common/surface-control/default.nix

diff --git a/microsoft/surface/common/default.nix b/microsoft/surface/common/default.nix
index cf83775..8c1fd83 100644
--- a/microsoft/surface/common/default.nix
+++ b/microsoft/surface/common/default.nix
@@ -7,6 +7,7 @@ in {
   imports = [
     ./kernel
     ./ipts
+    ./surface-control
   ];
 
   microsoft-surface.kernelVersion = mkDefault "6.0.11";
diff --git a/microsoft/surface/common/surface-control/default.nix b/microsoft/surface/common/surface-control/default.nix
new file mode 100644
index 0000000..4927c24
--- /dev/null
+++ b/microsoft/surface/common/surface-control/default.nix
@@ -0,0 +1,25 @@
+{ config, lib, pkgs, ... }:
+
+
+let
+  inherit (lib) mkDefault mkEnableOption mkIf mkMerge;
+
+  cfg = config.microsoft-surface.surface-control;
+
+in {
+  options.microsoft-surface.surface-control = {
+    enable = mkEnableOption "Enable 'surface-control' for Microsoft Surface";
+  };
+
+  config = mkMerge [
+    {
+      microsoft-surface.surface-control.enable = mkDefault false;
+    }
+
+    (mkIf cfg.enable {
+      environment.systemPackages = with pkgs; [ surface-control ];
+      services.udev.packages = with pkgs; [ surface-control];
+      users.groups.surface-control = { };
+    })
+  ];
+}
diff --git a/microsoft/surface/default.nix b/microsoft/surface/default.nix
index 6b84749..5b541c9 100644
--- a/microsoft/surface/default.nix
+++ b/microsoft/surface/default.nix
@@ -17,13 +17,6 @@ in {
     options iwldvm force_cam=N
   '';
 
-  environment.systemPackages = [
-    pkgs.surface-control
-  ];
-  users.groups.surface-control = { };
-  services.udev.packages = [
-    pkgs.surface-control
-  ];
-
+  microsoft-surface.surface-control.enable = true;
   microsoft-surface.ipts.enable = true;
 }