From 461b1099ad87afc7ca5876720cbf5543979416a1 Mon Sep 17 00:00:00 2001
From: kenji <kenji@hakase>
Date: Sat, 10 Jan 2026 23:01:23 -0600
Subject: [PATCH] add(matugen): auto-theme switch

---
 apps/matugen/config.toml            |  5 +++++
 apps/matugen/default.nix            |  2 ++
 apps/matugen/templates/theme-switch | 11 +++++++++++
 3 files changed, 18 insertions(+)
 create mode 100644 apps/matugen/templates/theme-switch

diff --git a/apps/matugen/config.toml b/apps/matugen/config.toml
index 7897ddb..2f3bb75 100644
--- a/apps/matugen/config.toml
+++ b/apps/matugen/config.toml
@@ -55,3 +55,8 @@ post_hook = "makoctl reload"
 input_path = "~/.config/matugen/templates/vicinae"
 output_path = "~/.local/share/vicinae/themes/matugen.toml"
 post_hook = "vicinae theme set matugen"
+
+[templates.theme-switch]
+input_path = "~/.config/matugen/templates/theme-switch"
+output_path = "~/.config/matugen/scripts/theme-switch.sh"
+post_hook = "sh ~/.config/matugen/scripts/theme-switch.sh"
diff --git a/apps/matugen/default.nix b/apps/matugen/default.nix
index ee46fb5..34af09d 100644
--- a/apps/matugen/default.nix
+++ b/apps/matugen/default.nix
@@ -6,6 +6,7 @@
 }: {
   home.packages = with pkgs; [
     matugen
+    dconf
     psmisc # for killall
   ];
   home.file.".config/matugen/config.toml" = {
@@ -13,6 +14,7 @@
   };
 
   # Copy static templates
+  home.file.".config/matugen/templates/theme-switch".source = ./templates/theme-switch;
   home.file.".config/matugen/templates/cava".source = ./templates/cava;
   home.file.".config/matugen/templates/firefox".source = ./templates/firefox;
   home.file.".config/matugen/templates/ghostty".source = ./templates/ghostty;
diff --git a/apps/matugen/templates/theme-switch b/apps/matugen/templates/theme-switch
new file mode 100644
index 0000000..303e0d7
--- /dev/null
+++ b/apps/matugen/templates/theme-switch
@@ -0,0 +1,11 @@
+#!/bin/sh
+# Generated by Matugen
+
+# mode will be replaced by 'dark' or 'light'
+MODE="{{mode}}"
+
+if [ "$MODE" = "dark" ]; then
+    ${pkgs.dconf}/bin/dconf write /org/gnome/desktop/interface/color-scheme "'prefer-dark'"
+else
+    ${pkgs.dconf}/bin/dconf write /org/gnome/desktop/interface/color-scheme "'prefer-light'"
+fi