neovim: add vale & ltex-lsp

outputs/pkgs/ook-vim/modules/plugins/gruvbox-material/config.nix

@@ -5,8 +5,105 @@
   ...
 }: let
   inherit (lib) mkOption mkIf boolToString;
-  inherit (lib.types) bool enum lines;
-  inherit (lib.nvim.dag) entryAfter;
+  inherit (lib.types) bool enum lines nullOr str submodule attrsOf;
+  inherit (lib.nvim.dag) entryBefore;
+  inherit (lib.nvim.lua) toLuaObject;
+
+  # hack to get around nvf's handling of prefixed @ in toLuaObject
+  wrapHighlights = highlights:
+    lib.mapAttrs' (
+      name: value:
+        if lib.hasPrefix "@" name
+        then lib.nameValuePair "hl_${name}" value
+        else lib.nameValuePair name value
+    )
+    highlights;
+
+  highlightOpts = submodule {
+    options = {
+      # https://neovim.io/doc/user/api.html#nvim_set_hl()
+      fg = mkOption {
+        type = nullOr str;
+        default = null;
+        description = "Foreground color";
+      };
+      bg = mkOption {
+        type = nullOr str;
+        default = null;
+        description = "Background color";
+      };
+      sp = mkOption {
+        type = nullOr str;
+        default = null;
+        description = "SP color";
+      };
+      blend = mkOption {
+        type = nullOr bool;
+        default = null;
+        description = "Blend attribute";
+      };
+      bold = mkOption {
+        type = nullOr bool;
+        default = null;
+        description = "Italic attribute";
+      };
+      standout = mkOption {
+        type = nullOr bool;
+        default = null;
+        description = "Standout attribute";
+      };
+      underline = mkOption {
+        type = nullOr bool;
+        default = null;
+        description = "underline attribute";
+      };
+      undercurl = mkOption {
+        type = nullOr bool;
+        default = null;
+        description = "Undercurl attribute";
+      };
+      underdouble = mkOption {
+        type = nullOr bool;
+        default = null;
+        description = "Underdouble attribute";
+      };
+      underdotted = mkOption {
+        type = nullOr bool;
+        default = null;
+        description = "Underdotted attribute";
+      };
+      underdashed = mkOption {
+        type = nullOr bool;
+        default = null;
+        description = "Underdashed attribute";
+      };
+      strikethrough = mkOption {
+        type = nullOr bool;
+        default = null;
+        description = "Strikethrough attribute";
+      };
+      italic = mkOption {
+        type = nullOr bool;
+        default = null;
+        description = "Bold attribute";
+      };
+      reverse = mkOption {
+        type = nullOr bool;
+        default = null;
+        description = "Reverse attribute";
+      };
+      nocombine = mkOption {
+        type = nullOr bool;
+        default = null;
+        description = "Nocombine attribute";
+      };
+      link = mkOption {
+        type = nullOr str;
+        default = null;
+        description = "Link attribute";
+      };
+    };
+  };
 
   cfg = config.vim.gruvbox-material;
 in {
@@ -45,13 +142,18 @@ in {
       type = lines;
       description = "Additional lua configuration after";
     };
+    additionalHighlights = mkOption {
+      type = attrsOf highlightOpts;
+      default = {};
+      description = "Additional highlight groups to be applied after theme setup.";
+    };
   };
 
   config = mkIf cfg.enable {
     vim = {
       startPlugins = [pkgs.vimPlugins.gruvbox-material-nvim];
       luaConfigRC.theme =
-        entryAfter ["basic"]
+        entryBefore ["pluginConfigs" "lazyConfigs"]
         /*
         lua
         */
@@ -72,7 +174,14 @@ in {
               highlight = ${boolToString cfg.signsHighlight},
             },
           }
-          ${cfg.extraConfig}
+
+          local extra_highlights = ${toLuaObject (wrapHighlights cfg.additionalHighlights)}
+          for group_name, settings in pairs(extra_highlights) do
+            -- Unwrap our prefixed names back to @ form
+            local actual_name = group_name:gsub("^hl_@", "@")
+            vim.api.nvim_set_hl(0, actual_name, settings)
+          end
+
         '';
     };
   };