fresh-editor: init module

modules/programs/fresh-editor.nix

@@ -0,0 +1,47 @@
+{
+  lib,
+  pkgs,
+  config,
+  ...
+}:
+let
+  inherit (lib)
+    mkIf
+    mkEnableOption
+    mkPackageOption
+    mkOption
+    ;
+
+  cfg = config.programs.fresh-editor;
+  jsonFormat = pkgs.formats.json { };
+in
+{
+  meta.maintainers = with lib.maintainers; [ drupol ];
+  options.programs.fresh-editor = {
+    enable = mkEnableOption "fresh-editor";
+    package = mkPackageOption pkgs "fresh-editor" { nullable = true; };
+    settings = mkOption {
+      inherit (jsonFormat) type;
+      default = { };
+      example = {
+        version = 1;
+        theme = "dark";
+        editor = {
+          tab_size = 4;
+          line_numbers = true;
+        };
+      };
+      description = ''
+        Configuration settings for fresh-editor. Find more configuration options in the user guide at:
+        <https://github.com/sinelaw/fresh/blob/master/docs/USER_GUIDE.md>
+      '';
+    };
+  };
+
+  config = mkIf cfg.enable {
+    home.packages = mkIf (cfg.package != null) [ cfg.package ];
+    xdg.configFile."fresh/config.json" = mkIf (cfg.settings != { }) {
+      source = jsonFormat.generate "config.json" cfg.settings;
+    };
+  };
+}