From 9edd2f7f3ba80a280436ffc5e306fa3ffd93e622 Mon Sep 17 00:00:00 2001
From: Johan <meck@users.noreply.github.com>
Date: Thu, 25 Apr 2024 14:06:31 +0200
Subject: [PATCH] nix: enable creating config file via home-manager (#109)

---
 nix/README.md     |  3 +++
 nix/hm-module.nix | 16 ++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/nix/README.md b/nix/README.md
index 3ceebae..26b14a6 100644
--- a/nix/README.md
+++ b/nix/README.md
@@ -34,6 +34,9 @@ enable lan-mouse
     enable = true;
     # systemd = false;
     # package = inputs.lan-mouse.packages.${pkgs.stdenv.hostPlatform.system}.default
+    # Optional configuration in nix syntax, see config.toml for available options
+    # settings = { };
+    };
   };
 }
 
diff --git a/nix/hm-module.nix b/nix/hm-module.nix
index 49b6cf2..50bf13e 100644
--- a/nix/hm-module.nix
+++ b/nix/hm-module.nix
@@ -7,6 +7,7 @@ self: {
 with lib; let
   cfg = config.programs.lan-mouse;
   defaultPackage = self.packages.${pkgs.stdenv.hostPlatform.system}.default;
+  tomlFormat = pkgs.formats.toml {};
 in {
   options.programs.lan-mouse = with types; {
     enable = mkEnableOption "Whether or not to enable lan-mouse.";
@@ -25,6 +26,17 @@ in {
       default = pkgs.stdenv.isLinux;
       description = "Whether to enable to systemd service for lan-mouse.";
     };
+    settings = lib.mkOption {
+      inherit (tomlFormat) type;
+      default = {};
+      example = builtins.fromTOML (builtins.readFile (self + /config.toml));
+      description = ''
+        Optional configuration written to {file}`$XDG_CONFIG_HOME/lan-mouse/config.toml`.
+
+        See <https://github.com/feschber/lan-mouse/> for
+        available options and documentation.
+      '';
+    };
   };
 
   config = mkIf cfg.enable {
@@ -46,5 +58,9 @@ in {
     home.packages = [
       cfg.package
     ];
+
+    xdg.configFile."lan-mouse/config.toml" = lib.mkIf (cfg.settings != {}) {
+      source = tomlFormat.generate "config.toml" cfg.settings;
+    };
   };
 }