feat: massive refactor

modules/core/xdg.nix

@@ -0,0 +1,60 @@
+{
+  lib,
+  config,
+  pkgs,
+  username,
+  ...
+}:
+let
+  cfg = config.my.xdg;
+in
+{
+  options.my.xdg = {
+    enable = lib.mkEnableOption "xdg";
+    defaultApplications = lib.mkOption {
+      type = lib.types.attrs;
+      default = { };
+    };
+    extraBookmarks = lib.mkOption {
+      type = with lib.types; listOf str;
+      default = [ ];
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    my.hm =
+      let
+        homedir = config.my.hm.home.homeDirectory;
+      in
+      {
+        home.packages = with pkgs; [
+          xdg-utils # `xdg-mime` `xdg-open` and so on
+        ];
+        xdg = {
+          enable = true;
+
+          cacheHome = "${homedir}/.cache";
+          configHome = "${homedir}/.config";
+          dataHome = "${homedir}/.local/share";
+          stateHome = "${homedir}/.local/state";
+
+          userDirs.enable = true;
+
+          configFile."mimeapps.list".force = true;
+
+          mimeApps = {
+            enable = true;
+            inherit (cfg) defaultApplications;
+          };
+        };
+        gtk.gtk3.bookmarks = [
+          "file://${homedir}/Documents 文档"
+          "file://${homedir}/Downloads 下载"
+          "file://${homedir}/Pictures 图片"
+          "file://${homedir}/Videos 视频"
+          "file://${homedir}/Music 音乐"
+          "file://${homedir}/workspace 工作空间"
+        ];
+      };
+  };
+}