feat(nvim): nixify theming (and add 'vscode' theme)

home/hosts/work/default.nix

@@ -70,7 +70,10 @@
   music.enable = true;
   my.dconf.enable = true;
   my.stylix.enable = true;
-  nvim.enable = true;
+  nvim = {
+    enable = true;
+    colorscheme = "vscode";
+  };
   pandoc.enable = true;
   shell.enable = true;
   taskwarrior.enable = true;

home/modules/nvim/default.nix

@@ -1,15 +1,28 @@
 {
-  config,
-  lib,
-  pkgs,
   inputs,
+  pkgs,
+  lib,
+  config,
   ...
 }:
 
+let
+  themes = import "${inputs.nvim}/themes.nix" pkgs;
+  plugins = themes.${config.nvim.colorscheme};
+in
 {
-  options.nvim.enable = lib.mkEnableOption "nvim";
+  imports = [ inputs.nvim.homeModules.default ];
+
+  options.nvim.colorscheme = lib.mkOption {
+    type = lib.types.enum (lib.attrNames themes);
+    default = "zenwritten";
+  };
 
   config = lib.mkIf config.nvim.enable {
+    nvim.packageDefinitions.merge.nvim = _: {
+      categories.colorscheme = config.nvim.colorscheme;
+    };
+
     home = {
       sessionVariables = {
         EDITOR = "nvim";
@@ -19,10 +32,15 @@
         PAGER = "nvimpager";
         MANWIDTH = "80";
       };
-      packages = with pkgs; [
-        inputs.nvim.packages.${pkgs.stdenv.hostPlatform.system}.nvim
-        nvimpager
-      ];
+      packages = with pkgs; [ nvimpager ];
     };
+
+    xdg.configFile."nvimpager/init.lua".text = ''
+      vim.opt.clipboard = "unnamedplus"
+      vim.opt.background = "dark"
+      vim.g.zenwritten_compat = 1
+      ${lib.concatMapStringsSep "\n" (plugin: ''vim.opt.runtimepath:append("${plugin}")'') plugins}
+      vim.cmd.colorscheme("${config.nvim.colorscheme}")
+    '';
   };
 }