default.nix

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

with import <home-manager/modules/lib/dag.nix> { inherit lib; };

let
  version = "0.9.57";

  release = pkgs.fetchzip {
    name = "Hammerspoon.app";
    url = "https://github.com/Hammerspoon/hammerspoon/releases/download/${version}/Hammerspoon-${version}.zip";
    sha256 = "12j9vylcxb7i3bn0v5x6zbxmnyyp7gh4am4vg48yv3hb54i73klx";
  };

  package = pkgs.stdenv.mkDerivation {
    name = "Hammerspoon-${version}";
    builder = builtins.toFile "builder.sh" "
      source $stdenv/setup
      mkdir -p $out/Applications/Hammerspoon.app
      echo ${release}
      echo $out
    ";
  };

in {
  home.packages = [ package ];

  home.activation.hammerspoon = dagEntryAfter["linkgeneration"] (let
    linkName = "Hammerspoon.app";
    home = config.home.homeDirectory;
    applications = "${home}/.nix-profile/Applications";
    source = "${applications}/${linkName}";
    target = "${home}/Applications/";
  in ''
    rm -f ${target}
    osascript << EOF
      tell application "Finder"
      set mySource to POSIX file "${source}" as alias
      make new alias to mySource at POSIX file "${target}"
      set name of result to "${linkName}"
      end tell
    EOF
  '');
}