class GraphTool < Formula
  include Language::Python::Virtualenv

  desc "Efficient network analysis for Python 3"
  homepage "https://graph-tool.skewed.de/"
  url "https://downloads.skewed.de/graph-tool/graph-tool-2.27.tar.bz2"
  sha256 "4740c69720dfbebf8fb3e77057b3e6a257ccf0432cdaf7345f873247390e4313"
  revision 2

  bottle do
    sha256 "4f23af8e2b5c0a5da0f2f8de2734ce2178890418c9b268f91586874ff313c114" => :mojave
    sha256 "a9728e856ab5c28233db4e4bd29b63399d91fbfd1b510bf8fe0c64e7640e3843" => :sierra
  end

  depends_on "pkg-config" => :build
  depends_on "boost"
  depends_on "boost-python3"
  depends_on "cairomm"
  depends_on "cgal"
  depends_on "google-sparsehash"
  depends_on "gtk+3"
  depends_on "librsvg"
  depends_on :macos => :el_capitan # needs thread-local storage
  depends_on "numpy"
  depends_on "py3cairo"
  depends_on "pygobject3"
  depends_on "python"
  depends_on "scipy"

  resource "Cycler" do
    url "https://files.pythonhosted.org/packages/c2/4b/137dea450d6e1e3d474e1d873cd1d4f7d3beed7e0dc973b06e8e10d32488/cycler-0.10.0.tar.gz"
    sha256 "cd7b2d1018258d7247a71425e9f26463dfb444d411c39569972f4ce586b0c9d8"
  end

  resource "kiwisolver" do
    url "https://files.pythonhosted.org/packages/31/60/494fcce70d60a598c32ee00e71542e52e27c978e5f8219fae0d4ac6e2864/kiwisolver-1.0.1.tar.gz"
    sha256 "ce3be5d520b4d2c3e5eeb4cd2ef62b9b9ab8ac6b6fedbaa0e39cdb6f50644278"
  end

  resource "matplotlib" do
    url "https://files.pythonhosted.org/packages/ec/ed/46b835da53b7ed05bd4c6cae293f13ec26e877d2e490a53a709915a9dcb7/matplotlib-2.2.2.tar.gz"
    sha256 "4dc7ef528aad21f22be85e95725234c5178c0f938e2228ca76640e5e84d8cde8"
  end

  resource "pyparsing" do
    url "https://files.pythonhosted.org/packages/3c/ec/a94f8cf7274ea60b5413df054f82a8980523efd712ec55a59e7c3357cf7c/pyparsing-2.2.0.tar.gz"
    sha256 "0832bcf47acd283788593e7a0f542407bd9550a55a8a8435214a1960e04bcb04"
  end

  resource "python-dateutil" do
    url "https://files.pythonhosted.org/packages/a0/b0/a4e3241d2dee665fea11baec21389aec6886655cd4db7647ddf96c3fad15/python-dateutil-2.7.3.tar.gz"
    sha256 "e27001de32f627c22380a688bcc43ce83504a7bc5da472209b4c70f02829f0b8"
  end

  resource "pytz" do
    url "https://files.pythonhosted.org/packages/10/76/52efda4ef98e7544321fd8d5d512e11739c1df18b0649551aeccfb1c8376/pytz-2018.4.tar.gz"
    sha256 "c06425302f2cf668f1bba7a0a03f3c1d34d4ebeef2c72003da308b3947c7f749"
  end

  resource "six" do
    url "https://files.pythonhosted.org/packages/16/d8/bc6316cf98419719bd59c91742194c111b6f2e85abac88e496adefaf7afe/six-1.11.0.tar.gz"
    sha256 "70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9"
  end

  # Remove for > 2.27
  # Upstream commit from 3 Jul 2018 "Fix incompatibility with Python 3.7"
  patch do
    url "https://git.skewed.de/count0/graph-tool/commit/0407f41a.diff"
    sha256 "94559544ad95753a13ee701c02af706c8b296c54af2c1706520ec96e24aa6d39"
  end

  # Remove for > 2.27
  # Upstream commit from 3 Oct 2018 "Fix compilation with CGAL 4.13"
  patch do
    url "https://git.skewed.de/count0/graph-tool/commit/aa39e4a6.diff"
    sha256 "5a4ea386342c2de9422da5b07dd4272d47d2cdbba99d9b258bff65a69da562c1"
  end

  def install
    # Work around "error: no member named 'signbit' in the global namespace"
    ENV["SDKROOT"] = MacOS.sdk_path if MacOS.version == :high_sierra

    xy = Language::Python.major_minor_version "python3"
    venv = virtualenv_create(libexec, "python3")

    resources.each do |r|
      venv.pip_install_and_link r
    end

    args = %W[
      --disable-debug
      --disable-dependency-tracking
      --prefix=#{prefix}
      PYTHON=python3
      PYTHON_LIBS=-undefined\ dynamic_lookup
      --with-python-module-path=#{lib}/python#{xy}/site-packages
      --with-boost-python=boost_python#{xy.to_s.delete(".")}-mt
    ]
    args << "--with-expat=#{MacOS.sdk_path}/usr" if MacOS.sdk_path_if_needed

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

    site_packages = "lib/python#{xy}/site-packages"
    pth_contents = "import site; site.addsitedir('#{libexec/site_packages}')\n"
    (prefix/site_packages/"homebrew-graph-tool.pth").write pth_contents
  end

  test do
    (testpath/"test.py").write <<~EOS
      import graph_tool.all as gt
      g = gt.Graph()
      v1 = g.add_vertex()
      v2 = g.add_vertex()
      e = g.add_edge(v1, v2)
      assert g.num_edges() == 1
      assert g.num_vertices() == 2
    EOS
    system "python3", "test.py"
  end
end