class Enigma < Formula
  desc "Puzzle game inspired by Oxyd and Rock'n'Roll"
  homepage "https://www.nongnu.org/enigma/"
  url "https://downloads.sourceforge.net/project/enigma-game/Release%201.21/enigma-1.21.tar.gz"
  sha256 "d872cf067d8eb560d3bb1cb17245814bc56ac3953ae1f12e2229c8eb6f82ce01"
  revision 4

  bottle do
    cellar :any
    sha256 "8011aae1fa4e166dd9fb406844b1efcb246eb26ecc4e29c67dec71a3f8a7b231" => :mojave
    sha256 "9eeb7a516f7188b38bc1a9e9ea2450db22391e65401d1377028881c11acbcc15" => :high_sierra
    sha256 "cdca7a198f3decfc3d387d590f84a7c3125adb06185469afa737eb5d61c150b3" => :sierra
  end

  head do
    url "https://github.com/Enigma-Game/Enigma.git"
    depends_on "texi2html" => :build
  end

  depends_on "autoconf" => :build
  depends_on "automake" => :build
  depends_on "imagemagick" => :build
  depends_on "pkg-config" => :build
  depends_on "enet"
  depends_on "freetype"
  depends_on "gettext"
  depends_on "libpng"
  depends_on "sdl"
  depends_on "sdl_image"
  depends_on "sdl_mixer"
  depends_on "sdl_ttf"
  depends_on "xerces-c"

  # See https://github.com/Enigma-Game/Enigma/pull/8
  patch do
    url "https://raw.githubusercontent.com/Homebrew/formula-patches/master/enigma/c%2B%2B11.patch"
    sha256 "5870bb761dbba508e998fc653b7b05a130f9afe84180fa21667e7c2271ccb677"
  end

  def install
    ENV.cxx11

    system "./autogen.sh" if build.head?

    inreplace "configure" do |s|
      s.gsub! /-framework (SDL(_(mixer|image|ttf))?)/, '-l\1'
      s.gsub! %r{\${\w+//\\"/}/lib(freetype|png|xerces-c)\.a}, '-l\1'
      s.gsub! %r{(LIBINTL)="\${with_libintl_prefix}/lib/lib(intl)\.a"}, '\1=-l\2'
      s.gsub! /^\s+LIBENET_CFLAGS\n.*LIBENET.*\n\s+LIBENET_LIBS\n.*LIBENET.*$/, ""
    end
    inreplace "src/Makefile.in" do |s|
      s.gsub! %r{(cp -a /Library/Frameworks/.*)$}, 'echo \1'
      s.gsub! "mkalias -r", "ln -s"
    end

    system "./configure", "--disable-dependency-tracking",
                          "--prefix=#{prefix}",
                          "--with-libintl-prefix=#{Formula["gettext"].opt_prefix}",
                          "--with-system-enet"
    system "make"
    system "make", "macapp"
    prefix.install "etc/macfiles/Enigma.app"
    bin.write_exec_script "#{prefix}/Enigma.app/Contents/MacOS/enigma"
  end

  test do
    assert_equal "Enigma v#{version}", shell_output("#{bin}/enigma --version").chomp
  end
end