neovim-flake/modules/comments/comment-nvim/config.nix

{
  config,
  lib,
  ...
}: let
  inherit (lib.modules) mkIf mkMerge;
  inherit (lib.nvim.binds) mkExprBinding mkBinding;
  inherit (lib.nvim.dag) entryAnywhere;

  cfg = config.vim.comments.comment-nvim;
  self = import ./comment-nvim.nix {inherit lib;};
  inherit (self.options.vim.comments.comment-nvim) mappings;
in {
  config = mkIf cfg.enable {
    vim.startPlugins = [
      "comment-nvim"
    ];

    vim.maps.normal = mkMerge [
      (mkBinding cfg.mappings.toggleOpLeaderLine "<Plug>(comment_toggle_linewise)" mappings.toggleOpLeaderLine.description)
      (mkBinding cfg.mappings.toggleOpLeaderBlock "<Plug>(comment_toggle_blockwise)" mappings.toggleOpLeaderBlock.description)

      (mkExprBinding cfg.mappings.toggleCurrentLine ''
          function()
            return vim.api.nvim_get_vvar('count') == 0 and '<Plug>(comment_toggle_linewise_current)'
                    or '<Plug>(comment_toggle_linewise_count)'
          end
        ''
        mappings.toggleCurrentLine.description)
      (mkExprBinding cfg.mappings.toggleCurrentBlock ''
          function()
            return vim.api.nvim_get_vvar('count') == 0 and '<Plug>(comment_toggle_blockwise_current)'
                    or '<Plug>(comment_toggle_blockwise_count)'
          end
        ''
        mappings.toggleCurrentBlock.description)
    ];

    vim.maps.visualOnly = mkMerge [
      (mkBinding cfg.mappings.toggleSelectedLine "<Plug>(comment_toggle_linewise_visual)" mappings.toggleSelectedLine.description)
      (mkBinding cfg.mappings.toggleSelectedBlock "<Plug>(comment_toggle_blockwise_visual)" mappings.toggleSelectedBlock.description)
    ];

    vim.luaConfigRC.comment-nvim = entryAnywhere ''
      require('Comment').setup({
        mappings = { basic = false, extra = false, },
      })
    '';
  };
}