class Vte3 < Formula
  desc "Terminal emulator widget used by GNOME terminal"
  homepage "https://developer.gnome.org/vte/"
  url "https://download.gnome.org/sources/vte/0.50/vte-0.50.1.tar.xz"
  sha256 "cf1708e3e573160e1db107014b3ef70888fefe6b668373fed70e8d1cac45a8c2"

  bottle do
    sha256 "aef370f70dc0be9784f7f3a27c8b9227984bf11decea9588d5ca20848c49b3e0" => :high_sierra
    sha256 "18c6bd3fd21bb86e250e970b4c7b2ec86746237fd409347141df5c55db5f350b" => :sierra
    sha256 "3a4ed053662741acec0afaacfd312a4e001614ae864accf4ec7b2c4de7877194" => :el_capitan
  end

  depends_on "pkg-config" => :build
  depends_on "intltool" => :build
  depends_on "gettext"
  depends_on "gtk+3"
  depends_on "gnutls"
  depends_on "vala"
  depends_on "gobject-introspection"
  depends_on "pcre2"

  # patch taken from https://bugzilla.gnome.org/show_bug.cgi?id=788476
  patch do
    url "https://raw.githubusercontent.com/Homebrew/formula-patches/6ce03e3/vte3/fix-strchrnul.patch"
    sha256 "ea498b8233e643defda58f48d6bbadc5d334b931c0a2cf73bddc8ae222e9520e"
  end

  def install
    args = [
      "--disable-dependency-tracking",
      "--prefix=#{prefix}",
      "--disable-Bsymbolic",
      "--enable-introspection=yes",
      "--enable-gnome-pty-helper",
    ]

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

  test do
    (testpath/"test.c").write <<~EOS
      #include <vte/vte.h>

      int main(int argc, char *argv[]) {
        guint v = vte_get_major_version();
        return 0;
      }
    EOS
    atk = Formula["atk"]
    cairo = Formula["cairo"]
    fontconfig = Formula["fontconfig"]
    freetype = Formula["freetype"]
    gdk_pixbuf = Formula["gdk-pixbuf"]
    gettext = Formula["gettext"]
    glib = Formula["glib"]
    gnutls = Formula["gnutls"]
    gtkx3 = Formula["gtk+3"]
    libepoxy = Formula["libepoxy"]
    libpng = Formula["libpng"]
    libtasn1 = Formula["libtasn1"]
    nettle = Formula["nettle"]
    pango = Formula["pango"]
    pixman = Formula["pixman"]
    flags = %W[
      -I#{atk.opt_include}/atk-1.0
      -I#{cairo.opt_include}/cairo
      -I#{fontconfig.opt_include}
      -I#{freetype.opt_include}/freetype2
      -I#{gdk_pixbuf.opt_include}/gdk-pixbuf-2.0
      -I#{gettext.opt_include}
      -I#{glib.opt_include}/gio-unix-2.0/
      -I#{glib.opt_include}/glib-2.0
      -I#{glib.opt_lib}/glib-2.0/include
      -I#{gnutls.opt_include}
      -I#{gtkx3.opt_include}/gtk-3.0
      -I#{include}/vte-2.91
      -I#{libepoxy.opt_include}
      -I#{libpng.opt_include}/libpng16
      -I#{libtasn1.opt_include}
      -I#{nettle.opt_include}
      -I#{pango.opt_include}/pango-1.0
      -I#{pixman.opt_include}/pixman-1
      -D_REENTRANT
      -L#{atk.opt_lib}
      -L#{cairo.opt_lib}
      -L#{gdk_pixbuf.opt_lib}
      -L#{gettext.opt_lib}
      -L#{glib.opt_lib}
      -L#{gnutls.opt_lib}
      -L#{gtkx3.opt_lib}
      -L#{lib}
      -L#{pango.opt_lib}
      -latk-1.0
      -lcairo
      -lcairo-gobject
      -lgdk-3
      -lgdk_pixbuf-2.0
      -lgio-2.0
      -lglib-2.0
      -lgnutls
      -lgobject-2.0
      -lgtk-3
      -lintl
      -lpango-1.0
      -lpangocairo-1.0
      -lvte-2.91
      -lz
    ]
    system ENV.cc, "test.c", "-o", "test", *flags
    system "./test"
  end
end