class Fontforge < Formula
  desc "Command-line outline and bitmap font editor/converter"
  homepage "https://fontforge.github.io"
  url "https://github.com/fontforge/fontforge/releases/download/20170731/fontforge-dist-20170731.tar.xz"
  sha256 "840adefbedd1717e6b70b33ad1e7f2b116678fa6a3d52d45316793b9fd808822"
  revision 2

  bottle do
    sha256 "ebadbf1cfd49acf9e93a4aae4ac55d1c414f10a6d51c08c01ae4de5ff9b843f7" => :high_sierra
    sha256 "743eddfc980dac38a3879e471c61761d2f1e77e7bb3c7b9c0b0335979e01c0d5" => :sierra
    sha256 "357ce3d76f1b77e7a427e97560c15e0df246d5fe68ade404ba1a9b7ababea9b0" => :el_capitan
  end

  option "with-giflib", "Build with GIF support"
  option "with-extra-tools", "Build with additional font tools"

  deprecated_option "with-gif" => "with-giflib"

  depends_on "pkg-config" => :build
  depends_on "libtool" => :run
  depends_on "gettext"
  depends_on "pango"
  depends_on "cairo"
  depends_on "fontconfig"
  depends_on "libpng"
  depends_on "jpeg" => :recommended
  depends_on "libtiff" => :recommended
  depends_on "giflib" => :optional
  depends_on "libspiro" => :optional
  depends_on "libuninameslist" => :optional
  depends_on :python if MacOS.version <= :snow_leopard

  def install
    ENV["PYTHON_CFLAGS"] = `python-config --cflags`.chomp
    ENV["PYTHON_LIBS"] = `python-config --ldflags`.chomp

    args = %W[
      --prefix=#{prefix}
      --disable-silent-rules
      --disable-dependency-tracking
      --without-x
    ]

    args << "--without-libjpeg" if build.without? "jpeg"
    args << "--without-libtiff" if build.without? "libtiff"
    args << "--without-giflib" if build.without? "giflib"
    args << "--without-libspiro" if build.without? "libspiro"
    args << "--without-libuninameslist" if build.without? "libuninameslist"

    # Fix header includes to avoid crash at runtime:
    # https://github.com/fontforge/fontforge/pull/3147
    inreplace "fontforgeexe/startnoui.c", "#include \"fontforgevw.h\"", "#include \"fontforgevw.h\"\n#include \"encoding.h\""

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

    # The app here is not functional.
    # If you want GUI/App support, check the caveats to see how to get it.
    (pkgshare/"osx/FontForge.app").rmtree

    if build.with? "extra-tools"
      cd "contrib/fonttools" do
        system "make"
        bin.install Dir["*"].select { |f| File.executable? f }
      end
    end
  end

  def caveats; <<-EOS.undent
    This formula only installs the command line utilities.

    FontForge.app can be downloaded directly from the website:
      https://fontforge.github.io

    Alternatively, install with Homebrew-Cask:
      brew cask install fontforge
    EOS
  end

  test do
    system bin/"fontforge", "-version"
    system bin/"fontforge", "-lang=py", "-c", "import fontforge; fontforge.font()"
    ENV.append_path "PYTHONPATH", lib+"python2.7/site-packages"
    system "python", "-c", "import fontforge; fontforge.font()"
  end
end