dotnix/apps/helix.nix

{
  programs.helix = {
    enable = true;
    defaultEditor = true;
    settings = {
      theme = "catppuccin_mocha_transparent";
      editor = {
        line-number = "relative";
        mouse = false;
        bufferline = "always";
        color-modes = true;
        cursor-shape = {
          insert = "bar";
          normal = "block";
          select = "underline";
        };
        file-picker = {hidden = false;};
        indent-guides = {
          render = true;
          skip-levels = 1;
        };
        soft-wrap = {enable = true;};
        statusline = {
          right = [
            "version-control"
            "diagnostics"
            "selections"
            "position"
            "file-encoding"
          ];
        };
        lsp = {display-messages = true;};
      };
      keys = {
        normal = {
          space = {
            q = ":quit";
            Q = ":quit!";
            w = ":write";
            W = ":write!";
          };
          C-c = ":config-open";
          C-r = ":config-reload";
          "C-/" = "toggle_comments";
          S-right = "goto_next_buffer";
          S-left = "goto_previous_buffer";
          C-b = ":buffer-close";
          C-s = ["select_all" "select_regex"];

          C-j = "shrink_selection";
          C-k = "expand_selection";
          C-l = "select_next_sibling";
          C-a = "select_all";
          C-u = ["half_page_up" "align_view_center"];
          C-d = ["half_page_down" "align_view_center"];

          "{" = ["goto_prev_paragraph" "collapse_selection"];
          "}" = ["goto_next_paragraph" "collapse_selection"];
          "0" = "goto_line_start";
          "$" = "goto_line_end";
          "^" = "goto_first_nonwhitespace";
          G = "goto_file_end";
          "%" = "match_brackets";
          V = ["select_mode" "extend_to_line_bounds"];
          C = ["collapse_selection" "extend_to_line_end" "change_selection"];
          D = ["extend_to_line_end" "delete_selection"];
          S = "surround_add";

          d = {
            d = ["extend_to_line_bounds" "delete_selection"];
            t = ["extend_till_char"];
            s = ["surround_delete"];
            i = ["select_textobject_inner"];
            a = ["select_textobject_around"];
          };

          x = "delete_selection";
          p = "paste_clipboard_after";
          P = "paste_clipboard_before";
          y = [
            "yank_main_selection_to_clipboard"
            "normal_mode"
            "flip_selections"
            "collapse_selection"
          ];
          Y = [
            "extend_to_line_bounds"
            "yank_main_selection_to_clipboard"
            "goto_line_start"
            "collapse_selection"
          ];

          w = ["move_next_word_start" "move_char_right" "collapse_selection"];
          e = ["move_next_word_end" "collapse_selection"];
          b = ["move_prev_word_start" "collapse_selection"];

          i = ["insert_mode" "collapse_selection"];
          a = ["append_mode" "collapse_selection"];

          esc = ["collapse_selection" "keep_primary_selection"];
        };
        insert = {esc = ["collapse_selection" "normal_mode"];};
        select = {
          space = {
            j = {
              e = ":pipe jq";
              c = ":pipe jq -c";
            };
          };
          "{" = ["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";
          S = "surround_add";

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

          tab = ["insert_mode" "collapse_selection"];
          C-a = ["append_mode" "collapse_selection"];

          k = ["extend_line_up" "extend_to_line_bounds"];
          j = ["extend_line_down" "extend_to_line_bounds"];

          d = ["yank_main_selection_to_clipboard" "delete_selection"];
          x = ["yank_main_selection_to_clipboard" "delete_selection"];
          y = [
            "yank_main_selection_to_clipboard"
            "normal_mode"
            "flip_selections"
            "collapse_selection"
          ];
          Y = [
            "extend_to_line_bounds"
            "yank_main_selection_to_clipboard"
            "goto_line_start"
            "collapse_selection"
            "normal_mode"
          ];
          p = "replace_selections_with_clipboard";
          P = "paste_clipboard_before";

          esc = ["collapse_selection" "keep_primary_selection" "normal_mode"];
        };
      };
    };
    languages = {
      language = [
        {
          name = "jsonnet";
          auto-format = true;
          formatter = {
            command = "jsonnetfmt";
            args = ["-"];
          };
        }
        {
          name = "go";
          formatter = {
            command = "imp";
            args = ["--gofumpt" "--stdin"];
          };
        }
        {
          name = "python";
          auto-format = true;
          formatter = {
            command = "black";
            args = ["--quiet" "-"];
          };
        }
        {
          name = "nix";
          auto-format = true;
          formatter = {
            command = "alejandra";
            args = ["-qq"];
          };
        }
      ];
    };
    themes = {
      catppuccin_frappe_transparent = {
        inherits = "catppuccin_frappe";
        "ui.background" = {};
      };
      catppuccin_latte_transparent = {
        inherits = "catppuccin_latte";
        "ui.background" = {};
      };
      catppuccin_macchiato_transparent = {
        inherits = "catppuccin_macchiato";
        "ui.background" = {};
      };
      catppuccin_mocha_transparent = {
        inherits = "catppuccin_mocha";
        "ui.background" = {};
      };
    };
  };
}