feat: enable and remap glow preview

modules/markdown/glow/config.nix

@@ -8,13 +8,26 @@ with lib; let
   cfg = config.vim.markdown.glow;
 in {
   config = (mkIf cfg.enable) {
-    vim.startPlugins = ["glow-nvim"];
+    vim.startPlugins = [
+      "glow-nvim"
+    ];
+
     vim.globals = {
       "glow_binary_path" = "${pkgs.glow}/bin";
     };
 
-    vim.configRC.glow = nvim.dag.entryAnywhere ''
-      autocmd FileType markdown noremap <leader>p :Glow<CR>
+    vim.configRC.glow-nvim = nvim.dag.entryAnywhere ''
+      autocmd FileType markdown noremap <leader>pm :Glow<CR>
+    '';
+
+    vim.luaConfigRC.glow-nvim = nvim.dag.entryAnywhere ''
+      require('glow').setup({
+        -- use glow path from vim.globals
+        path = vim.g.glow_binary_path,
+        border = "${toString cfg.border}",
+        pager = ${boolToString cfg.pager},
+        width = 120,
+      })
     '';
   };
 }

modules/markdown/glow/glow.nix

@@ -6,13 +6,31 @@
 }:
 with lib;
 with builtins; let
-  cfg = config.vim.markdown;
+  cfg = config.vim.markdown.glow;
 in {
-  options.vim.markdown = {
-    glow.enable = mkOption {
+  options.vim.markdown.glow = {
+    enable = mkOption {
       type = types.bool;
       default = false;
       description = "Enable markdown preview in neovim with glow";
     };
+    border = mkOption {
+      type = types.enum ["shadow" "rounded" "single" "double" "none"];
+      default = "double";
+      description = "Border style for glow preview";
+    };
+
+    # style should be either light or dark
+    style = mkOption {
+      type = types.enum ["light" "dark"];
+      default = "dark";
+      description = "Style for glow preview";
+    };
+
+    pager = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Enable pager for glow preview";
+    };
   };
 }

modules/utility/binds/which-key/config.nix

@@ -107,9 +107,15 @@ in {
         ''
         else ""
       }
-
-       })
-
+      ${
+        if config.vim.markdown.glow.enable
+        then ''
+          -- Markdown
+          ["<leader>pm"] = { name = "+Preview Markdown" },
+        ''
+        else ""
+      }
+      })
     '';
   };
 }