1 files changed, 60 insertions, 0 deletions
diff --git a/modules/locales.nix b/modules/locales.nix
new file mode 100644
index 0000000..73627f8
--- /dev/null
+++ b/modules/locales.nix
@@ -0,0 +1,60 @@
+{ lib, config, pkgs, ... }:
+
+let localeMap = {
+      c = "C.UTF-8";
+      us = "en_US.UTF-8";
+      it = "it_IT.UTF-8";
+      jp = "ja_JP.UTF-8";
+    };
+
+    dictOverlay = with pkgs.aspellDicts; {
+      us = en;
+    };
+    dicts = pkgs.aspellDicts // dictOverlay;
+
+    getSafe' = with builtins;
+      (key: attrs: if hasAttr key attrs then [(getAttr key attrs)] else []);
+
+    inherit (lib) types;
+    cfg = config.this.locales;
+in
+{
+  options = {
+    this.locales = {
+      default = lib.mkOption {
+        type = types.str;
+        default = "us";
+      };
+      extra = lib.mkOption {
+        type = types.listOf types.str;
+        default = [];
+      };
+      dictionaries = {
+        enable = lib.mkEnableOption "dictionaries";
+        extra = lib.mkOption {
+          type = types.listOf types.str;
+          default = [];
+        };
+      };
+
+      all = lib.mkOption {
+        description = "READ-ONLY!";
+        default = ["c" cfg.default] ++ cfg.extra;
+      };
+    };
+  };
+
+  config = {
+    i18n = {
+      defaultLocale = localeMap.${cfg.default};
+      supportedLocales =
+        builtins.map (l: localeMap.${l} + "/UTF-8") cfg.all;
+    };
+
+    environment.systemPackages =
+      (lib.optionals cfg.dictionaries.enable
+        (builtins.concatMap (l: getSafe' l dicts)
+          cfg.all))
+      ++ builtins.map (d: pkgs.aspellDicts.${d}) cfg.dictionaries.extra;
+  };
+}