cmake_minimum_required(VERSION 3.8)
project(ParaViewExamples)

if (ParaView_BINARY_DIR)
  set(paraview_catalyst_directory "")
  if (TARGET ParaView::catalyst-paraview)
    get_property(paraview_catalyst_directory GLOBAL
      PROPERTY paraview_catalyst_directory)
  endif ()

  function (add_example dir)
    cmake_parse_arguments(arg "" "TEST_TIMEOUT" "" ${ARGN})
    if (arg_UNPARSED_ARGUMENTS)
      message(FATAL_ERROR "Unknown arguments passed to 'add_example': ${arg_UNPARSED_ARGUMENTS}")
    endif()

    add_test(
      NAME    "ParaViewExample-${dir}"
      COMMAND "${CMAKE_COMMAND}"
              "-Dconfig=$<CONFIGURATION>"
              "-Dgenerator=${CMAKE_GENERATOR}"
              "-Dsource=${CMAKE_CURRENT_SOURCE_DIR}"
              "-Dbinary=${CMAKE_CURRENT_BINARY_DIR}"
              "-Dexample_dir=${dir}"
              "-Dbuild_type=${CMAKE_BUILD_TYPE}"
              "-Dshared=${BUILD_SHARED_LIBS}"
              "-Dparaview_dir=${paraview_cmake_build_dir}"
              "-Dctest=${CMAKE_CTEST_COMMAND}"
              "-Dplatform=${CMAKE_GENERATOR_PLATFORM}"
              "-Dtoolset=${CMAKE_GENERATOR_TOOLSET}"
              "-Dparaview_binary_dir=${CMAKE_RUNTIME_OUTPUT_DIRECTORY}"
              "-Dcatalyst_DIR=${catalyst_DIR}"
              "-Dparaview_catalyst_dir=${ParaView_BINARY_DIR}/${paraview_catalyst_directory}"
              -P "${CMAKE_CURRENT_LIST_DIR}/RunExample.cmake")
    set_property(TEST "ParaViewExample-${dir}" APPEND
      PROPERTY
        SKIP_REGULAR_EXPRESSION "Skipping example")

    if (arg_TEST_TIMEOUT)
      # override timeout, if specified.
      set_property(TEST "ParaViewExample-${dir}"
        PROPERTY
          TIMEOUT "${arg_TEST_TIMEOUT}")
    endif()
  endfunction ()

  # When building ParaView, also adds existings Python example in the testing suite.
  function (add_python_example dir)
    set(_vtk_test_python_suffix "ParaViewExample-${dir}")
    add_subdirectory("${dir}/Testing")
  endfunction()
else ()
  if (NOT BUILD_SHARED_LIBS)
    set(CMAKE_JOB_POOL_LINK static_exe_link)
    set_property(GLOBAL APPEND PROPERTY
      JOB_POOLS "${CMAKE_JOB_POOL_LINK}=1")
  endif ()

  find_package(ParaView REQUIRED)
  include(CTest)
  enable_testing()

  macro (add_example dir)
    add_subdirectory("${dir}")
  endmacro ()

  # When outside of a ParaView build, we have nothing to do for Python.
  # Create the method anyway to define the API regardless this fact,
  # but implement it as a no-op.
  function (add_python_example dir)
  # pass
  endfunction()
endif ()


if (PARAVIEW_USE_PYTHON AND PARAVIEW_ENABLE_RENDERING)
  add_python_example(Plugins/ComplexPythonArchitecture)
endif()

add_example(Plugins/AddPQProxy)
add_example(Plugins/Autostart)
add_example(Plugins/ComplexPluginArchitecture)
add_example(Plugins/ContextMenu)
add_example(Plugins/DynamicInitializer)
add_example(Plugins/DockWidget)
add_example(Plugins/DockWidgetCustomProxy)
if (TARGET ParaView::RemotingMisc)
  add_example(Plugins/ElevationFilter)
endif ()
add_example(Plugins/GUIMyToolBar)
add_example(Plugins/LagrangianIntegrationModel)
add_example(Plugins/LiveSource)
add_example(Plugins/MyPNGReader)
add_example(Plugins/MyTiffWriter)
add_example(Plugins/OnLoadCheckCallback)
add_example(Plugins/OverrideXMLOnly)
add_example(Plugins/PropertyWidgets)
add_example(Plugins/PythonAlgorithm)
add_example(Plugins/RegistrationName)
add_example(Plugins/ReaderXMLOnly)
add_example(Plugins/Representation)
# TODO: update this plugin to use the pipeline controller instead.
#add_example(Plugins/RepresentationBehavior)
add_example(Plugins/SMParametricSource)
add_example(Plugins/SMMyProxy)
add_example(Plugins/ServerSideQt)
add_example(Plugins/SourceToolbar)
# add_example(Plugins/VisItReader)

add_example(CustomApplications/Clone1)
add_example(CustomApplications/Clone2)
add_example(CustomApplications/Demo0)
add_example(CustomApplications/Demo1)
add_example(CustomApplications/MultiServerClient)
add_example(CustomApplications/SimpleParaView)
add_example(CustomApplications/Spreadsheet)

# increate timeout for this test since it builds multiple executables
# which be timeconsuming on static builds.
add_example(Catalyst
  TEST_TIMEOUT 600)

if (TARGET VTK::IOCatalystConduit)
  add_example(Catalyst2/CFullExample)
  add_example(Catalyst2/CxxFullExample)
  add_example(Catalyst2/CxxImageDataExample)
  add_example(Catalyst2/CxxMultiChannelInputExample)
  add_example(Catalyst2/CxxOverlappingAMRExample)
  add_example(Catalyst2/CxxPolyhedra)
  add_example(Catalyst2/CxxMultimesh)
  add_example(Catalyst2/CxxSteeringExample)
  if (TARGET catalyst::catalyst_fortran)
    add_example(Catalyst2/Fortran90FullExample)
  endif ()
  if (Python3_EXECUTABLE)
    add_example(Catalyst2/PythonFullExample)
    add_example(Catalyst2/PythonSteeringExample)
  endif ()
endif ()

add_example(UseParaView/Incubator)
add_example(UseParaView/NoIncubator)

add_custom_target(paraview-examples
  COMMAND
    "${CMAKE_CTEST_COMMAND}"
    --test-dir "${CMAKE_BINARY_DIR}"
    --tests-regex "ParaViewExample-"
    --extra-verbose
    -C "$<CONFIGURATION>"
  USES_TERMINAL
  COMMENT "Running ParaView Examples")