class Pygobject3 < Formula
  desc "GLib/GObject/GIO Python bindings for Python 3"
  homepage "https://live.gnome.org/PyGObject"
  url "http://ftp.gnome.org/pub/GNOME/sources/pygobject/3.14/pygobject-3.14.0.tar.xz"
  sha256 "779effa93f4b59cdb72f4ab0128fb3fd82900bf686193b570fd3a8ce63392d54"

  option 'with-tests', 'run tests'

  depends_on 'pkg-config' => :build

  # these dependencies are not required for `brew test`, but rather for
  # the tests included with the source code.
  if build.with? 'tests'
    depends_on 'automake' => :build
    depends_on 'autoconf' => :build
    depends_on 'libtool' => :build
    depends_on 'gnome-common' => :build
    depends_on 'gtk+3' => :build
  end

  depends_on 'libffi' => :optional
  depends_on 'glib'
  depends_on :python => :recommended
  depends_on :python3 => :optional
  depends_on 'py2cairo' if build.with? 'python'
  depends_on 'py3cairo' if build.with? 'python3'
  depends_on 'gobject-introspection'

  option :universal

  patch do
    url "https://gist.githubusercontent.com/krrk/6439665/raw/a527e14cd3a77c19b089f27bea884ce46c988f55/pygobject-fix-module.patch"
    sha1 "1d7aad99256d87d616a41b7026cd05267bd9f97f"
  end if build.with? 'tests'

  # resolves "error: redefinition of typedef 'PyGIFunctionCache'"
  # https://github.com/Homebrew/homebrew/issues/34734
  # https://bugzilla.gnome.org/show_bug.cgi?id=737874
  patch do
    url "https://github.com/GNOME/pygobject/commit/0de827190e7575f7e1e339337b78c7d6e46957b4.diff"
    sha1 "6a9c1f510964e9c09531c47538ca376af14522c5"
  end

  def install
    ENV.universal_binary if build.universal?

    if build.with? 'tests'
      # autogen.sh is necessary to update the build system after the above
      # patch and XDG_DATA_DIRS needs to be fixed for some tests to run
      inreplace 'tests/Makefile.am', '/usr/share', HOMEBREW_PREFIX/'share'
      system "./autogen.sh"
    end

    Language::Python.each_python(build) do |python, version|
      system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}", "PYTHON=#{python}"
      system "make", "install"
      system "make", "check" if build.with? 'tests'
      system "make", "clean"
    end
  end

  test do
    Pathname('test.py').write <<-EOS.undent
    import gi
    assert("__init__" in gi.__file__)
    EOS
    Language::Python.each_python(build) do |python, version|
      system python, "test.py"
    end
  end
end