feat(templates): add users-templates config

nix/home-module.nix

@@ -3,17 +3,22 @@
   lib,
   pkgs,
   ...
-}: let
+}:
+let
   cfg = config.programs.noctalia-shell;
-  jsonFormat = pkgs.formats.json {};
-  generateJson = name: value:
+  jsonFormat = pkgs.formats.json { };
+  tomlFormat = pkgs.formats.toml { };
+
+  generateJson =
+    name: value:
     if lib.isString value then
       pkgs.writeText "noctalia-${name}.json" value
     else if builtins.isPath value || lib.isStorePath value then
       value
     else
       jsonFormat.generate "noctalia-${name}.json" value;
-in {
+in
+{
   options.programs.noctalia-shell = {
     enable = lib.mkEnableOption "Noctalia shell configuration";
 
@@ -25,13 +30,14 @@ in {
     };
 
     settings = lib.mkOption {
-      type = with lib.types;
+      type =
+        with lib.types;
         oneOf [
           jsonFormat.type
           str
           path
         ];
-      default = {};
+      default = { };
       example = lib.literalExpression ''
         {
           bar = {
@@ -56,13 +62,14 @@ in {
     };
 
     colors = lib.mkOption {
-      type = with lib.types;
+      type =
+        with lib.types;
         oneOf [
           jsonFormat.type
           str
           path
         ];
-      default = {};
+      default = { };
       example = lib.literalExpression ''
          {
            mError = "#dddddd";
@@ -87,6 +94,55 @@ in {
       '';
     };
 
+    user-templates = lib.mkOption {
+      type = lib.types.submodule {
+        options = {
+          config = lib.mkOption {
+            type = lib.types.attrsOf lib.types.anything;
+            default = { };
+            description = "General [config] section for Matugen’s TOML config file.";
+          };
+          templates = lib.mkOption {
+            type = lib.types.attrsOf (
+              lib.types.submodule {
+                options = {
+                  inputPath = lib.mkOption {
+                    type = lib.types.path;
+                    description = "Template input path for Matugen";
+                  };
+                  outputPath = lib.mkOption {
+                    type = lib.types.path;
+                    description = "Output path where the generated file will be written";
+                  };
+                  postHook = lib.mkOption {
+                    type = lib.types.nullOr lib.types.str;
+                    default = "";
+                    description = "Command to run after file is generated";
+                  };
+                };
+              }
+            );
+          };
+        };
+      };
+      default = { };
+      example = lib.literalExpression ''
+        programs.noctalia-shell.user-templates = {
+          templates = {
+            neovim = {
+              inputPath = "~/.config/matugen/templates/template.lua";
+              outputPath = "~/.config/nvim/generated.lua";
+              postHook = "pkill -SIGUSR1 nvim";
+            };
+          };
+        };
+      '';
+      description = ''
+        Template definitions for Matugen. Each attribute corresponds to a template
+        such as "neovim", "kitty", "btop".
+      '';
+    };
+
     app2unit.package = lib.mkOption {
       type = lib.types.package;
       default = pkgs.app2unit;
@@ -96,10 +152,11 @@ in {
     };
   };
 
-  config = let
-    restart = "${pkgs.systemd}/bin/systemctl --user try-restart noctalia-shell.service 2>/dev/null || true";
-    useApp2Unit = cfg.settings.appLauncher.useApp2Unit or false;
-  in
+  config =
+    let
+      restart = "${pkgs.systemd}/bin/systemctl --user try-restart noctalia-shell.service 2>/dev/null || true";
+      useApp2Unit = cfg.settings.appLauncher.useApp2Unit or false;
+    in
     lib.mkIf cfg.enable {
       systemd.user.services.noctalia-shell = lib.mkIf cfg.systemd.enable {
         Unit = {
@@ -108,8 +165,8 @@ in {
           PartOf = [ config.wayland.systemd.target ];
           After = [ config.wayland.systemd.target ];
           X-Restart-Triggers =
-            lib.optional (cfg.settings != {}) config.xdg.configFile."noctalia/settings.json".source
-            ++ lib.optional (cfg.colors != {}) config.xdg.configFile."noctalia/colors.json".source;
+            lib.optional (cfg.settings != { }) config.xdg.configFile."noctalia/settings.json".source
+            ++ lib.optional (cfg.colors != { }) config.xdg.configFile."noctalia/colors.json".source;
         };
 
         Service = {
@@ -124,18 +181,29 @@ in {
       };
 
       home.packages =
-        lib.optional useApp2Unit cfg.app2unit.package
-        ++ lib.optional (cfg.package != null) cfg.package;
+        lib.optional useApp2Unit cfg.app2unit.package ++ lib.optional (cfg.package != null) cfg.package;
 
       xdg.configFile = {
-        "noctalia/settings.json" = lib.mkIf (cfg.settings != {}) {
+        "noctalia/settings.json" = lib.mkIf (cfg.settings != { }) {
           onChange = lib.mkIf (!cfg.systemd.enable) restart;
           source = generateJson "settings" cfg.settings;
         };
-        "noctalia/colors.json" = lib.mkIf (cfg.colors != {}) {
+        "noctalia/colors.json" = lib.mkIf (cfg.colors != { }) {
           onChange = lib.mkIf (!cfg.systemd.enable) restart;
           source = generateJson "colors" cfg.colors;
         };
+        "noctalia/user-templates.toml" = {
+          onChange = lib.mkIf (!cfg.systemd.enable) restart;
+          source = tomlFormat.generate "user-templates.toml" {
+            config = cfg.user-templates.config;
+            templates = lib.mapAttrs (_: t: {
+              input_path = t.inputPath;
+              output_path = t.outputPath;
+              post_hook = t.postHook;
+            }) cfg.user-templates.templates;
+          };
+        };
+
       };
 
       assertions = [