{ lib, config, pkgs, ... }:
let
  cfg = config.grimmShared;
  lily-pkg = pkgs.lilypond-with-fonts;
  defaultPond = pkgs.substituteAll {
    src = ./default.ly;
    version = lib.getVersion lily-pkg;
  };
in
{
  programs.neovim = {
    enable = true;
    configure = {

      packages.myVimPackage = with pkgs.vimPlugins; {
        # loaded on launch
        start = [
          nvim-lilypond-suite
        ];
      };
    };
  };

  environment.systemPackages = with pkgs; [
    lily-pkg
  ] ++ lib.optionals (cfg.sway.enable) [
    zathura
    (with lib; writeShellScriptBin "lilypond-edit" ''
      if [ "$1" == "" ] || [ $# -gt 1 ]; then
        echo "useage: lilypond-edit [file-path]"
        exit 0
      fi
      if ! test -f "$1"; then
        touch "$1"
        cat ${defaultPond} > "$1"
      fi
      if ! test -f "$1"; then
        echo "could not create file: $1"
        exit 0
      fi
      pdf_path=$(echo "$1" | sed -E "s/(\.ly)?$//")
      generate_cmd="lilypond --pdf -o $pdf_path -s $1"
      editor_pid=$(${getExe alacritty} --command ${getExe neovim} -c "autocmd BufWritePost * :silent !$generate_cmd" $1 &> /dev/null & echo $!)
      $generate_cmd
            
      swaymsg [pid="$editor_pid"] focus
      swaymsg splith
      viewer_pid=$(${getExe zathura} "$pdf_path.pdf" &> /dev/null & echo $!)
      sleep 1
      swaymsg [pid="$editor_pid"] focus

      echo "viewer pid is: $viewer_pid"
      echo "editor pid is: $editor_pid"

      while ps -p $viewer_pid > /dev/null && ps -p $editor_pid > /dev/null; do
        sleep .1
      done

      kill $viewer_pid &> /dev/null
      kill $editor_pid &> /dev/null
    '')
  ];

}