class Vtk < Formula
  desc "Toolkit for 3D computer graphics, image processing, and visualization"
  homepage "https://www.vtk.org/"
  url "https://www.vtk.org/files/release/9.1/VTK-9.1.0.tar.gz"
  sha256 "8fed42f4f8f1eb8083107b68eaa9ad71da07110161a3116ad807f43e5ca5ce96"
  license "BSD-3-Clause"
  revision 1
  head "https://github.com/Kitware/VTK.git", branch: "master"

  bottle do
    sha256                               arm64_monterey: "a2ad11a39d276494e011de69cc26910fe87d86bff9fe0151fdb88dc9609a1e22"
    sha256                               arm64_big_sur:  "20b0335af2031a2f80f75d3cefbc8356e5100a4d62c7ff9996566571dffbaec1"
    sha256                               big_sur:        "3fb6007395e9e0ce09b03bb14b81e2f8511eff74e71b8d660b9e78acf6d1f368"
    sha256                               catalina:       "2aa0c85c665572b92fecc642d6cf00d7392547f42cd021ec5712a0400e298eaf"
    sha256 cellar: :any_skip_relocation, x86_64_linux:   "5806db1b35587147c06e87764c1c58b8af36d2c305929a24cc2b02635757ae7a"
  end

  depends_on "cmake" => [:build, :test]
  depends_on "boost"
  depends_on "double-conversion"
  depends_on "eigen"
  depends_on "fontconfig"
  depends_on "gl2ps"
  depends_on "glew"
  depends_on "hdf5"
  depends_on "jpeg"
  depends_on "jsoncpp"
  depends_on "libogg"
  depends_on "libpng"
  depends_on "libtiff"
  depends_on "lz4"
  depends_on "netcdf"
  depends_on "pugixml"
  depends_on "pyqt@5"
  depends_on "python@3.9"
  depends_on "qt@5"
  depends_on "sqlite"
  depends_on "theora"
  depends_on "utf8cpp"
  depends_on "xz"

  uses_from_macos "expat"
  uses_from_macos "libxml2"
  uses_from_macos "tcl-tk"
  uses_from_macos "zlib"

  on_linux do
    depends_on "gcc"
    depends_on "szip"
    depends_on "mesa-glu"
  end

  fails_with gcc: "5"

  def install
    args = std_cmake_args + %W[
      -DBUILD_SHARED_LIBS:BOOL=ON
      -DBUILD_TESTING:BOOL=OFF
      -DCMAKE_INSTALL_NAME_DIR:STRING=#{opt_lib}
      -DCMAKE_INSTALL_RPATH:STRING=#{rpath}
      -DVTK_WRAP_PYTHON:BOOL=ON
      -DVTK_PYTHON_VERSION:STRING=3
      -DVTK_LEGACY_REMOVE:BOOL=ON
      -DVTK_MODULE_ENABLE_VTK_InfovisBoost:STRING=YES
      -DVTK_MODULE_ENABLE_VTK_InfovisBoostGraphAlgorithms:STRING=YES
      -DVTK_MODULE_ENABLE_VTK_RenderingFreeTypeFontConfig:STRING=YES
      -DVTK_MODULE_USE_EXTERNAL_VTK_doubleconversion:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_eigen:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_expat:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_gl2ps:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_glew:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_hdf5:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_jpeg:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_jsoncpp:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_libxml2:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_lz4:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_lzma:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_netcdf:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_ogg:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_png:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_pugixml:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_sqlite:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_theora:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_tiff:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_utf8:BOOL=ON
      -DVTK_MODULE_USE_EXTERNAL_VTK_zlib:BOOL=ON
      -DPython3_EXECUTABLE:FILEPATH=#{Formula["python@3.9"].opt_bin}/python3
      -DVTK_GROUP_ENABLE_Qt:STRING=YES
    ]

    # https://github.com/Homebrew/linuxbrew-core/pull/21654#issuecomment-738549701
    args << "-DOpenGL_GL_PREFERENCE=LEGACY"

    args << "-DVTK_USE_COCOA:BOOL=ON" if OS.mac?

    mkdir "build" do
      system "cmake", "..", *args
      system "make"
      system "make", "install"
    end
  end

  test do
    (testpath/"CMakeLists.txt").write <<~EOS
      cmake_minimum_required(VERSION 3.3 FATAL_ERROR)
      project(Distance2BetweenPoints LANGUAGES CXX)
      find_package(VTK REQUIRED COMPONENTS vtkCommonCore CONFIG)
      add_executable(Distance2BetweenPoints Distance2BetweenPoints.cxx)
      target_link_libraries(Distance2BetweenPoints PRIVATE ${VTK_LIBRARIES})
    EOS

    (testpath/"Distance2BetweenPoints.cxx").write <<~EOS
      #include <cassert>
      #include <vtkMath.h>
      int main() {
        double p0[3] = {0.0, 0.0, 0.0};
        double p1[3] = {1.0, 1.0, 1.0};
        assert(vtkMath::Distance2BetweenPoints(p0, p1) == 3.0);
        return 0;
      }
    EOS

    vtk_dir = Dir[opt_lib/"cmake/vtk-*"].first
    system "cmake", "-DCMAKE_BUILD_TYPE=Debug", "-DCMAKE_VERBOSE_MAKEFILE=ON",
      "-DVTK_DIR=#{vtk_dir}", "."
    system "make"
    system "./Distance2BetweenPoints"

    (testpath/"Distance2BetweenPoints.py").write <<~EOS
      import vtk
      p0 = (0, 0, 0)
      p1 = (1, 1, 1)
      assert vtk.vtkMath.Distance2BetweenPoints(p0, p1) == 3
    EOS

    system bin/"vtkpython", "Distance2BetweenPoints.py"
  end
end
