class Ibex < Formula
  desc "C++ library for constraint processing over real numbers"
  homepage "http://www.ibex-lib.org/"
  url "https://github.com/ibex-team/ibex-lib/archive/ibex-2.6.3.tar.gz"
  sha256 "55f6d1dddadd8818cef0d1251a5637cb21ccf353f22392360375f2deed213864"
  head "https://github.com/ibex-team/ibex-lib.git"

  bottle do
    cellar :any
    sha256 "b64d56dc20a566e3276edca37326f005070dee046bb20be81302e4ecf2748d66" => :high_sierra
    sha256 "c4777f842a2536da1d5fcd0962a4dc4cada8cb135c1892778c8f3415308b2e7d" => :sierra
    sha256 "098308ad900c41c1fb8b8136a8cae0f9d85b3e78b36008ca2ae949cc40ca01e7" => :el_capitan
  end

  option "with-java", "Enable Java bindings for CHOCO solver."
  option "with-ampl", "Use AMPL file loader plugin"

  depends_on :java => ["1.8+", :optional]
  depends_on "bison" => :build
  depends_on "flex" => :build
  depends_on "pkg-config" => :build

  needs :cxx11

  def install
    ENV.cxx11

    # Reported 9 Oct 2017 https://github.com/ibex-team/ibex-lib/issues/286
    ENV.deparallelize

    if build.with?("java") && build.with?("ampl")
      odie "Cannot set options --with-java and --with-ampl simultaneously for now."
    end

    args = %W[
      --prefix=#{prefix}
      --enable-shared
      --with-optim
      --lp-lib=soplex
    ]

    args << "--with-jni" if build.with? "java"
    args << "--with-ampl" if build.with? "ampl"

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

    pkgshare.install %w[examples plugins/solver/benchs]
    (pkgshare/"examples/symb01.txt").write <<~EOS
      function f(x)
        return ((2*x,-x);(-x,3*x));
      end
    EOS
  end

  test do
    cp_r (pkgshare/"examples").children, testpath

    # so that pkg-config can remain a build-time only dependency
    inreplace %w[makefile slam/makefile] do |s|
      s.gsub! /CXXFLAGS.*pkg-config --cflags ibex./,
              "CXXFLAGS := -I#{include} -I#{include}/ibex "\
                          "-I#{include}/ibex/3rd"
      s.gsub! /LIBS.*pkg-config --libs  ibex./, "LIBS := -L#{lib} -libex"
    end

    (1..8).each do |n|
      system "make", "lab#{n}"
      system "./lab#{n}"
    end

    (1..3).each do |n|
      system "make", "-C", "slam", "slam#{n}"
      system "./slam/slam#{n}"
    end
  end
end