class Povray < Formula
  desc "Persistence Of Vision RAYtracer (POVRAY)"
  homepage "https://www.povray.org/"
  url "https://github.com/POV-Ray/povray/archive/v3.7.0.10.tar.gz"
  sha256 "7bee83d9296b98b7956eb94210cf30aa5c1bbeada8ef6b93bb52228bbc83abff"
  license "AGPL-3.0-or-later"
  revision 3
  head "https://github.com/POV-Ray/povray.git", branch: "master"

  livecheck do
    url :stable
    regex(/^v?(\d+(?:\.\d+)+\.\d{1,4})$/i)
  end

  bottle do
    sha256 arm64_monterey: "e6ac3d85cc880f470d6e3d45b8b7c099bfb15a8ab8439bd167711d42b894e8a5"
    sha256 arm64_big_sur:  "dd7219c0a8f537891038b8efbaf0182a2507955c67bc293d8006d306abc12022"
    sha256 monterey:       "4d74fda4ef144bed539f6313c4f66bc0610aca47ff7318ddda5340b31321773f"
    sha256 big_sur:        "54e70887d429f4ce6befb0838e3a6695c4b2f8a4f68a012c36526a05b2556f6f"
    sha256 catalina:       "437e0a054b986e806c551988735fef73e7b2679d88792519dc1d90597bfa4553"
    sha256 x86_64_linux:   "0c53bfc03f7cbabc4168461a5a3eacc739c63161186d6c9753ccd468692735d8"
  end

  depends_on "autoconf" => :build
  depends_on "automake" => :build
  depends_on "boost"
  depends_on "imath"
  depends_on "jpeg-turbo"
  depends_on "libpng"
  depends_on "libtiff"
  depends_on "openexr"

  def install
    ENV.cxx11

    args = %W[
      COMPILED_BY=homebrew
      --disable-debug
      --disable-dependency-tracking
      --prefix=#{prefix}
      --mandir=#{man}
      --with-boost=#{Formula["boost"].opt_prefix}
      --with-openexr=#{Formula["openexr"].opt_prefix}
      --without-libsdl
      --without-x
    ]

    # Adjust some scripts to search for `etc` in HOMEBREW_PREFIX.
    %w[allanim allscene portfolio].each do |script|
      inreplace "unix/scripts/#{script}.sh",
                /^DEFAULT_DIR=.*$/, "DEFAULT_DIR=#{HOMEBREW_PREFIX}"
    end

    cd "unix" do
      system "./prebuild.sh"
    end

    system "./configure", *args
    system "make", "install"
  end

  test do
    # Condensed version of `share/povray-3.7/scripts/allscene.sh` that only
    # renders variants of the famous Utah teapot as a quick smoke test.
    scenes = Dir["#{share}/povray-3.7/scenes/advanced/teapot/*.pov"]
    assert !scenes.empty?, "Failed to find test scenes."
    scenes.each do |scene|
      system "#{share}/povray-3.7/scripts/render_scene.sh", ".", scene
    end
  end
end