class Io < Formula
  desc "Small prototype-based programming language"
  homepage "http://iolanguage.com/"
  url "https://github.com/stevedekorte/io/archive/2017.09.06.tar.gz"
  sha256 "9ac5cd94bbca65c989cd254be58a3a716f4e4f16480f0dc81070457aa353c217"
  head "https://github.com/stevedekorte/io.git"

  bottle do
    sha256 "686d5d23790b53c27765d49da0a74ec96ee949353b31646a0a92ee931270a23d" => :high_sierra
    sha256 "2d0e05344917ad3a1d322f2860030013315ceb7e8ae962cf6070d1ee8cc395d4" => :sierra
    sha256 "3a5a0e9a1ec0ce7f4bc6bcfc5fb8c782f0b1ba0451251aaab51a796452b59e67" => :el_capitan
    sha256 "16d31a7062e2c7ebab815bcd48b03aab9597a6c40071cb407e2bc6dec91fef0b" => :yosemite
  end

  option "without-addons", "Build without addons"

  depends_on "cmake" => :build
  depends_on "pkg-config" => :build

  if build.with? "addons"
    depends_on "glib"
    depends_on "cairo"
    depends_on "gmp"
    depends_on "jpeg"
    depends_on "libevent"
    depends_on "libffi"
    depends_on "libogg"
    depends_on "libpng"
    depends_on "libsndfile"
    depends_on "libtiff"
    depends_on "libvorbis"
    depends_on "ossp-uuid"
    depends_on "pcre"
    depends_on "yajl"
    depends_on "xz"
    depends_on :python => :optional
  end

  def install
    ENV.deparallelize

    # FSF GCC needs this to build the ObjC bridge
    ENV.append_to_cflags "-fobjc-exceptions"

    if build.without? "addons"
      # Turn off all add-ons in main cmake file
      inreplace "CMakeLists.txt", "add_subdirectory(addons)",
                                  "#add_subdirectory(addons)"
    else
      inreplace "addons/CMakeLists.txt" do |s|
        if build.without? "python"
          s.gsub! "add_subdirectory(Python)", "#add_subdirectory(Python)"
        end

        # Turn off specific add-ons that are not currently working

        # Looks for deprecated Freetype header
        s.gsub!(/(add_subdirectory\(Font\))/, '#\1')
        # Builds against older version of memcached library
        s.gsub!(/(add_subdirectory\(Memcached\))/, '#\1')
      end
    end

    mkdir "buildroot" do
      system "cmake", "..", *std_cmake_args
      system "make"
      output = `./_build/binaries/io ../libs/iovm/tests/correctness/run.io`
      if $CHILD_STATUS.exitstatus.nonzero?
        opoo "Test suite not 100% successful:\n#{output}"
      else
        ohai "Test suite ran successfully:\n#{output}"
      end
      system "make", "install"
    end
  end

  test do
    (testpath/"test.io").write <<~EOS
      "it works!" println
    EOS

    assert_equal "it works!\n", shell_output("#{bin}/io test.io")
  end
end