dotfiles.nix/home/kitty.nix

{ pkgs, ... }:
# Let-In --------------------------------------------------------------------------------------- {{{
let
  colorsToKitty = colors: with colors; {
    inherit
      background
      foreground
      selection_background
      selection_foreground
      tab_bar_background
      active_tab_background
      active_tab_foreground
      inactive_tab_background
      inactive_tab_foreground;
    cursor = white;
    cursor_text_color = background;
    color0 = black;
    color8 = black;
    color1 = red;
    color9 = red;
    color2 = green;
    color10 = lime;
    color3 = yellow;
    color11 = orange;
    color4 = blue;
    color12 = blue;
    color5 = magenta;
    color13 = magenta;
    color6 = cyan;
    color14 = cyan;
    color7 = white;
    color15 = white;
    url_color = brightgreen;
  };
  font = "CaskaydiaCove Nerd Font";
in
# }}}
{
  # Kitty terminal
  # https://sw.kovidgoyal.net/kitty/conf.html
  # https://rycee.gitlab.io/home-manager/options.html#opt-programs.kitty.enable
  programs.kitty.enable = true;

  # General config ----------------------------------------------------------------------------- {{{

  programs.kitty.settings = {
    font_family = font;
    font_size = "14.0";
    adjust_line_height = "120%";
    disable_ligatures = "cursor"; # disable ligatures when cursor is on them

    # Window layout
    hide_window_decorations = "titlebar-only";
    window_padding_width = "10";

    # Tab bar
    tab_bar_edge = "top";
    tab_bar_style = "powerline";
    tab_powerline_style = "slanted";
    tab_title_template = "Tab {index}: {title}";
    active_tab_font_style = "bold";
    inactive_tab_font_style = "normal";
    tab_activity_symbol = "💬";

    # Shell integration manually enabled for fish
    shell_integration = "disabled";

    macos_option_as_alt = "both";
  };

  programs.kitty.extras.useSymbolsFromNerdFont = font;
  # }}}

  # Colors config ------------------------------------------------------------------------------ {{{
  programs.kitty.extras.colors.enable = true;
  programs.kitty.extras.colors.dark = colorsToKitty pkgs.lib.colors.tokyonight.dark;
  programs.kitty.extras.colors.light = colorsToKitty pkgs.lib.colors.tokyonight.light;

  programs.fish.functions.set-term-colors = {
    body = ''
      if test "$term_background" = light
        term-light
      else
        term-dark
      end
    '';
    onVariable = "term_background";
  };
  programs.fish.interactiveShellInit = ''
    # Set term colors based on value of `$term_background` when shell starts up.
    set-term-colors
    # Manually enable shell integration
    if set -q KITTY_INSTALLATION_DIR
      set --global KITTY_SHELL_INTEGRATION enabled
      source "$KITTY_INSTALLATION_DIR/shell-integration/fish/vendor_conf.d/kitty-shell-integration.fish"
      set --prepend fish_complete_path "$KITTY_INSTALLATION_DIR/shell-integration/fish/vendor_completions.d"
    end
  '';
  programs.fish.shellAliases = {
    s = "kitty +kitten ssh";
    e = "edit-in-kitty";
  };
  # }}}

  # Fix icon config
  programs.kitty.extras.fixIcon = {
    enable = true;
    appPath = "~/Applications/Home\\ Manager\\ Apps/kitty.app";
    iconPath = "${pkgs.kitty-icon}/kitty-dark.icns";
  };
}