dotfiles/nixos/home-manager/programs/helix.nix

{
  config,
  pkgs,
  lib,
  inputs,
  system,
  ...
}: let
  alejandra = lib.getExe inputs.alejandra.packages.${system}.default;
  nil = lib.getExe inputs.nil.packages.${system}.default;
in {
  programs.helix = {
    enable = true;
    package = inputs.helix.packages."${system}".helix;
    settings = {
      editor = {
        auto-pairs = false;
        lsp.display-messages = true;
        line-number = "relative";
      };
      keys.normal = {
        C-p = "file_picker";
        C-b = "buffer_picker";
        "{" = ["goto_prev_paragraph" "collapse_selection"];
        "}" = ["goto_next_paragraph" "collapse_selection"];
        "0" = "goto_line_start";
        "$" = "goto_line_end";
        "^" = "goto_first_nonwhitespace";
        G = "goto_file_end";
        V = ["select_mode" "extend_to_line_bounds"];
      };
      select = {
        "{" = ["extend_to_line_bounds" "goto_prev_paragraph"];
        "}" = ["extend_to_line_bounds" "goto_next_paragraph"];
        "0" = "goto_line_start";
        "$" = "goto_line_end";
        "^" = "goto_first_nonwhitespace";
        G = "goto_file_end";
        D = ["extend_to_line_bounds" "delete_selection" "normal_mode"];
        C = ["goto_line_start" "extend_to_line_bounds" "change_selection"];
        "%" = "match_brackets";
        V = ["extend_to_line_bounds"];

        i = "select_textobject_inner";
        a = "select_textobject_around";

        k = ["extend_line_up" "extend_to_line_bounds"];
        j = ["extend_line_down" "extend_to_line_bounds"];
      };
    };
    languages = [
      {
        name = "nix";
        auto-format = true;
        language-server = {command = nil;};
        formatter = {
          command = alejandra;
          args = ["-q"];
        };
      }
    ];
  };
}