#!/bin/sh
# autopkgtest check
# (C) 2014 Anton Gladky

set -e

export OMPI_MCA_orte_rsh_agent=/bin/false

WORKDIR=$(mktemp -d)
trap "rm -rf $WORKDIR" 0 INT QUIT ABRT PIPE TERM
cd $WORKDIR
mkdir src
cd src

cat <<EOF > CMakeLists.txt
cmake_minimum_required(VERSION 3.28)
project(demo)
find_package(VTK REQUIRED)

add_executable(demo demo.cpp)
target_link_libraries(demo \${VTK_LIBRARIES})
install(TARGETS demo DESTINATION bin)
EOF

cat <<EOF > demo.cpp
#include <vtkVersion.h>
#include <vtkSmartPointer.h>
#include <vtkTetra.h>
#include <vtkCellArray.h>
#include <vtkXMLUnstructuredGridReader.h>
#include <vtkDataSetMapper.h>
#include <vtkActor.h>
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkXMLUnstructuredGridWriter.h>
#include <vtkUnstructuredGrid.h>
#include <vtkPointData.h>
#include <vtkVertexGlyphFilter.h>
 
int main(int argc, char *argv[])
{
  if(argc != 2)
    {
    std::cout << "Required arguments: OutputFilename" << std::endl;
    return EXIT_FAILURE;
    }
 
  std::string filename = argv[1];
 
  vtkSmartPointer<vtkPoints> points =
    vtkSmartPointer<vtkPoints>::New();
  points->InsertNextPoint(0, 0, 0);
  points->InsertNextPoint(1, 0, 0);
  points->InsertNextPoint(1, 1, 0);
  points->InsertNextPoint(0, 1, 1);
 
   vtkSmartPointer<vtkTetra> tetra =
    vtkSmartPointer<vtkTetra>::New();
 
  tetra->GetPointIds()->SetId(0, 0);
  tetra->GetPointIds()->SetId(1, 1);
  tetra->GetPointIds()->SetId(2, 2);
  tetra->GetPointIds()->SetId(3, 3);
 
  vtkSmartPointer<vtkCellArray> cellArray =
    vtkSmartPointer<vtkCellArray>::New();
  cellArray->InsertNextCell(tetra);
 
 
  vtkSmartPointer<vtkUnstructuredGrid> unstructuredGrid =
    vtkSmartPointer<vtkUnstructuredGrid>::New();
  unstructuredGrid->SetPoints(points);
  unstructuredGrid->SetCells(VTK_TETRA, cellArray);
 
  // Write file
  vtkSmartPointer<vtkXMLUnstructuredGridWriter> writer =
    vtkSmartPointer<vtkXMLUnstructuredGridWriter>::New();
  writer->SetFileName(filename.c_str());
#if VTK_MAJOR_VERSION <= 5
  writer->SetInput(unstructuredGrid);
#else
  writer->SetInputData(unstructuredGrid);
#endif
  writer->Write();
 
  vtkSmartPointer<vtkXMLUnstructuredGridReader> reader =
    vtkSmartPointer<vtkXMLUnstructuredGridReader>::New();
  reader->SetFileName(filename.c_str());
  reader->Update();
 
  vtkSmartPointer<vtkDataSetMapper> mapper =
    vtkSmartPointer<vtkDataSetMapper>::New();
  mapper->SetInputConnection(reader->GetOutputPort());
 
  vtkSmartPointer<vtkActor> actor =
    vtkSmartPointer<vtkActor>::New();
  actor->SetMapper(mapper);
 
  vtkSmartPointer<vtkRenderer> renderer =
    vtkSmartPointer<vtkRenderer>::New();
  vtkSmartPointer<vtkRenderWindow> renderWindow =
    vtkSmartPointer<vtkRenderWindow>::New();
  renderWindow->AddRenderer(renderer);
  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  renderWindowInteractor->SetRenderWindow(renderWindow);
 
  renderer->AddActor(actor);
  renderer->SetBackground(.3, .6, .3);
 
  return EXIT_SUCCESS;
}


EOF

cd ..
mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=./../inst ./../src
make
make install
echo "build: OK"
[ -x demo ]
./demo a.vtu
cat a.vtu
echo "run: OK"
