{ pkgs, config, lib, ... }:

let
  theme = config.lib.stylix.colors {
    templateRepo = config.lib.stylix.templates.base16-helix;
  };

  # Removing the background exposes transparency from the terminal. The
  # background might be helpful if the terminal isn't themed, so we only
  # do this if transparency is actually enabled.
  transparentTheme = pkgs.runCommandLocal "helix-transparent.toml" {} ''
    sed 's/,\? bg = "base00"//g' <${theme} >$out
  '';

in {
  options.stylix.targets.helix.enable =
    config.lib.stylix.mkEnableTarget "Helix" true;

  config = lib.mkIf (config.stylix.enable && config.stylix.targets.helix.enable && config.programs.helix.enable) {
    programs.helix.settings.theme = "stylix";

    xdg.configFile."helix/themes/stylix.toml".source =
      if config.stylix.opacity.terminal == 1.0
      then theme
      else transparentTheme;
  };
}