From 6e39b312c8779ad7031f10017424fce38ea96dd2 Mon Sep 17 00:00:00 2001
From: PerchunPak <git@perchun.it>
Date: Sun, 14 Apr 2024 11:29:17 +0200
Subject: [PATCH] feat(home-manager): allow dark and light accents for gtk
 cursors

---
 modules/home-manager/gtk.nix | 4 +++-
 modules/lib/default.nix      | 5 +++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/modules/home-manager/gtk.nix b/modules/home-manager/gtk.nix
index 0bad6fc0..27f0a8fe 100644
--- a/modules/home-manager/gtk.nix
+++ b/modules/home-manager/gtk.nix
@@ -7,6 +7,8 @@ let
   inherit (lib) ctp mkOption types;
   cfg = config.gtk.catppuccin;
   enable = cfg.enable && config.gtk.enable;
+  # "dark" and "light" can be used alongside the regular accents
+  cursorAccentType = ctp.mergeEnums (ctp.types.accentOption) (lib.types.enum [ "dark" "light" ]);
 in
 {
   options.gtk.catppuccin =
@@ -26,7 +28,7 @@ in
 
       cursor = ctp.mkCatppuccinOpt "gtk cursors"
       // {
-        accent = ctp.mkAccentOpt "gtk cursors";
+        accent = ctp.mkBasicOpt "accent" cursorAccentType "gtk cursors";
       };
     };
 
diff --git a/modules/lib/default.nix b/modules/lib/default.nix
index 272ce9f8..235a2f06 100644
--- a/modules/lib/default.nix
+++ b/modules/lib/default.nix
@@ -100,4 +100,9 @@ in
     assertion = config.xdg.enable;
     message = "Option xdg.enable must be enabled to apply Catppuccin theming for ${name}";
   };
+
+  # see https://nlewo.github.io/nixos-manual-sphinx/development/option-types.xml.html
+  # by default enums cannot be merged, but they keep their passed value in `functor.payload`.
+  # `functor.binOp` can merge those values
+  mergeEnums = a: b: lib.types.enum (a.functor.binOp a.functor.payload b.functor.payload);
 }