class Pcl < Formula
  desc "Library for 2D/3D image and point cloud processing"
  homepage "https://pointclouds.org/"
  url "https://github.com/PointCloudLibrary/pcl/archive/pcl-1.11.1.tar.gz"
  sha256 "a61558e53abafbc909e0996f91cfd2d7a400fcadf6b8cfb0ea3172b78422c74e"
  license "BSD-3-Clause"
  head "https://github.com/PointCloudLibrary/pcl.git"

  bottle do
    sha256 "b094f39a7ba771e08686baefa441950ef4100cd331c58bb1cf00072dcf23259a" => :catalina
    sha256 "f26540692412438bf6ee08684dea520af51507ecbe107174ed6dde9b7baa9e9a" => :mojave
    sha256 "7371af2fb929023b0b80d24404ca53ab1b108f72bf74ef6b472e45e0e438742f" => :high_sierra
  end

  depends_on "cmake" => [:build, :test]
  depends_on "pkg-config" => :build
  depends_on "boost"
  depends_on "cminpack"
  depends_on "eigen"
  depends_on "flann"
  depends_on "glew"
  depends_on "libomp"
  depends_on "libpcap"
  depends_on "libusb"
  depends_on "qhull"
  depends_on "vtk"

  def install
    args = std_cmake_args + %w[
      -DBUILD_SHARED_LIBS:BOOL=ON
      -DBUILD_apps=AUTO_OFF
      -DBUILD_apps_3d_rec_framework=AUTO_OFF
      -DBUILD_apps_cloud_composer=AUTO_OFF
      -DBUILD_apps_in_hand_scanner=AUTO_OFF
      -DBUILD_apps_point_cloud_editor=AUTO_OFF
      -DBUILD_examples:BOOL=OFF
      -DBUILD_global_tests:BOOL=OFF
      -DBUILD_outofcore:BOOL=AUTO_OFF
      -DBUILD_people:BOOL=AUTO_OFF
      -DBUILD_simulation:BOOL=ON
      -DWITH_CUDA:BOOL=OFF
      -DWITH_DOCS:BOOL=OFF
      -DWITH_QT:BOOL=FALSE
      -DWITH_TUTORIALS:BOOL=OFF
    ]

    args << if build.head?
      "-DBUILD_apps_modeler=AUTO_OFF"
    else
      "-DBUILD_apps_modeler:BOOL=OFF"
    end

    mkdir "build" do
      system "cmake", "..", *args
      system "make", "install"
      prefix.install Dir["#{bin}/*.app"]
    end
  end

  test do
    assert_match "tiff files", shell_output("#{bin}/pcl_tiff2pcd -h", 255)
    # inspired by https://pointclouds.org/documentation/tutorials/writing_pcd.html
    (testpath/"CMakeLists.txt").write <<~EOS
      cmake_minimum_required(VERSION 2.8 FATAL_ERROR)
      project(pcd_write)
      find_package(PCL 1.2 REQUIRED)
      include_directories(${PCL_INCLUDE_DIRS})
      link_directories(${PCL_LIBRARY_DIRS})
      add_definitions(${PCL_DEFINITIONS})
      add_executable (pcd_write pcd_write.cpp)
      target_link_libraries (pcd_write ${PCL_LIBRARIES})
    EOS
    (testpath/"pcd_write.cpp").write <<~EOS
      #include <iostream>
      #include <pcl/io/pcd_io.h>
      #include <pcl/point_types.h>

      int main (int argc, char** argv)
      {
        pcl::PointCloud<pcl::PointXYZ> cloud;

        // Fill in the cloud data
        cloud.width    = 2;
        cloud.height   = 1;
        cloud.is_dense = false;
        cloud.points.resize (cloud.width * cloud.height);
        int i = 1;
        for (auto& point: cloud)
        {
          point.x = i++;
          point.y = i++;
          point.z = i++;
        }

        pcl::io::savePCDFileASCII ("test_pcd.pcd", cloud);
        return (0);
      }
    EOS
    mkdir "build" do
      system "cmake", "..", *std_cmake_args
      system "make"
      system "./pcd_write"
      assert_predicate (testpath/"build/test_pcd.pcd"), :exist?
      output = File.read("test_pcd.pcd")
      assert_match "POINTS 2", output
      assert_match "1 2 3", output
      assert_match "4 5 6", output
    end
  end
end