class GnuTypist < Formula
  desc "GNU typing tutor"
  homepage "https://www.gnu.org/software/gtypist/"
  url "https://ftp.gnu.org/gnu/gtypist/gtypist-2.9.5.tar.xz"
  mirror "https://ftpmirror.gnu.org/gtypist/gtypist-2.9.5.tar.xz"
  sha256 "c13af40b12479f8219ffa6c66020618c0ce305ad305590fde02d2c20eb9cf977"
  revision 1

  bottle do
    sha256 "014e293ce1ed514fe95e6fce4cbedefdc876a51b6d38a740183b8ce959899e5a" => :sierra
    sha256 "75fcb398d3997d6d9357bb6cf5638d2e10e469ce114b344865d37112754cc7af" => :el_capitan
    sha256 "285c918d6b2240e294e6b192aff25de0f0383f9ac645d8883e04e3443e52b674" => :yosemite
  end

  depends_on "gettext"

  # Use Apple's ncurses instead of ncursesw.
  # TODO: use an IFDEF for apple and submit upstream
  patch do
    url "https://raw.githubusercontent.com/Homebrew/formula-patches/42c4b96/gnu-typist/2.9.5.patch"
    sha256 "a408ecb8be3ffdc184fe1fa94c8c2a452f72b181ce9be4f72557c992508474db"
  end

  def install
    # libiconv is not linked properly without this
    ENV.append "LDFLAGS", "-liconv"

    system "./configure", "--disable-dependency-tracking",
                          "--prefix=#{prefix}",
                          "--with-lispdir=#{elisp}"
    system "make"
    system "make", "install"
  end

  test do
    session = fork do
      exec bin/"gtypist", "-t", "-q", "-l", "DEMO_0", share/"gtypist/demo.typ"
    end
    sleep 2
    Process.kill("TERM", session)
  end
end