###########################################################################
#                                                                         #
# Note: The bulk of the build system is located in the cmake/ directory.  #
#       This file only contains the specializations for this particular   #
#       project. Most likely you are interested in editing one of these   #
#       files instead:                                                    #
#                                                                         #
#       dune.module                              Name and version number  #
#       CMakeLists_files.cmake                   Path of source files     #
#       cmake/Modules/${project}-prereqs.cmake   Dependencies             #
#                                                                         #
###########################################################################

# Mandatory call to project

cmake_minimum_required (VERSION 3.10)

project(opm-simulators C CXX)


option(SIBLING_SEARCH "Search for other modules in sibling directories?" ON)
set( USE_OPENMP_DEFAULT OFF ) # Use of OpenMP is considered experimental
option(BUILD_FLOW "Build the production oriented flow simulator?" ON)
option(BUILD_FLOW_VARIANTS "Build the variants for flow by default?" OFF)
option(BUILD_FLOW_FLOAT_VARIANTS "Build the variants for flow using float?" OFF)
option(BUILD_FLOW_POLY_GRID "Build flow blackoil with polyhedral grid" OFF)
option(OPM_ENABLE_PYTHON "Enable python bindings?" OFF)
option(OPM_ENABLE_PYTHON_TESTS "Enable tests for the python bindings?" ON)
option(OPM_INSTALL_PYTHON "Install python bindings?" ON)
option(USE_CHOW_PATEL_ILU "Use the iterative ILU by Chow and Patel?" OFF)
option(USE_CHOW_PATEL_ILU_GPU "Run iterative ILU decomposition on GPU? Requires USE_CHOW_PATEL_ILU" OFF)
option(USE_CHOW_PATEL_ILU_GPU_PARALLEL "Try to use more parallelism on the GPU during the iterative ILU decomposition? Requires USE_CHOW_PATEL_ILU_GPU" OFF)
option(BUILD_FLOW_ALU_GRID "Build flow blackoil with alu grid" OFF)
option(USE_DAMARIS_LIB "Use the Damaris library for asynchronous I/O?" OFF)
option(USE_GPU_BRIDGE "Enable the GPU bridge (GPU/AMGCL solvers)" ON)
option(USE_TRACY_PROFILER "Enable tracy profiling" OFF)
option(CONVERT_CUDA_TO_HIP "Convert CUDA code to HIP (to run on AMD cards)" OFF)
option(USE_HYPRE "Use the Hypre library for linear solvers?" OFF)
set(OPM_COMPILE_COMPONENTS "2;3;4;5;6;7" CACHE STRING "The components to compile support for")
option(USE_OPENCL "Enable OpenCL support?" ON)

# Ensure OPM_COMPILE_COMPONENTS is a list of at least one element
if(OPM_COMPILE_COMPONENTS STREQUAL "")
  message(FATAL_ERROR "OPM_COMPILE_COMPONENTS must contain at least one component.")
endif()
# Check that OPM_COMPILE_COMPONENTS is a subset of 2,3,4,5,6,7
set(valid_components "2;3;4;5;6;7")
foreach(component IN LISTS OPM_COMPILE_COMPONENTS)
  list(FIND valid_components ${component} index)
  if(index EQUAL -1)
    message(FATAL_ERROR "Invalid component ${component} in OPM_COMPILE_COMPONENTS. Valid components are: ${valid_components}")
  endif()
endforeach()
# Check for duplicates in OPM_COMPILE_COMPONENTS
list(REMOVE_DUPLICATES OPM_COMPILE_COMPONENTS)
# Make a string we can use in the code
# this will be used in a template argument pack.
string(REPLACE ";" "," OPM_COMPILE_COMPONENTS_TEMPLATE_LIST "${OPM_COMPILE_COMPONENTS}")


# HIP requires cmake version 3.21
if (CONVERT_CUDA_TO_HIP AND CMAKE_VERSION VERSION_GREATER_EQUAL "3.21")
  enable_language(HIP)
  message("CUDA code will be hipified")
  set(HAVE_CUDA 1) # we still need this defined so that the preprocessor does not remove the code
  set(CUDA_FOUND ON)
  set(USE_HIP 1)
  find_package(hip REQUIRED)
  find_package(hipsparse REQUIRED)
  find_package(hipblas REQUIRED)
  link_libraries(roc::hipblas roc::hipsparse)
elseif(CONVERT_CUDA_TO_HIP)
  message("To generate HIP code for AMD GPUs run CMake with version >= 3.21")
endif()

# The following was copied from CMakeLists.txt in opm-common.
# TODO: factor out the common parts in opm-common and opm-simulator as a cmake module
if (OPM_ENABLE_PYTHON)
  # We need to be compatible with older CMake versions
  # that do not offer FindPython3
  # e.g. Ubuntu LTS 18.04 uses cmake 3.10
  if(${CMAKE_VERSION} VERSION_LESS "3.12.0")
    find_package(PythonInterp REQUIRED)
    if(PYTHON_VERSION_MAJOR LESS 3)
      message(SEND_ERROR "OPM requires version 3 of Python but only version ${PYTHON_VERSION_STRING} was found")
    endif()
    set(Python3_EXECUTABLE ${PYTHON_EXECUTABLE})
    set(Python3_LIBRARIES ${PYTHON_LIBRARIES})
    set(Python3_VERSION "${PYTHON_VERSION_STRING}")
    set(Python3_VERSION_MINOR ${PYTHON_VERSION_MINOR})
  else()
    # Be backwards compatible.
    if(PYTHON_EXECUTABLE AND NOT Python3_EXECUTABLE)
      set(Python3_EXECUTABLE ${PYTHON_EXECUTABLE})
    endif()
    if(${CMAKE_VERSION} VERSION_LESS "3.18.0")
      find_package(Python3 REQUIRED COMPONENTS Interpreter Development)
    else()
      find_package(Python3 REQUIRED COMPONENTS Interpreter Development.Module)
    endif()
  endif()
  if(Python3_VERSION_MINOR LESS 3)
    # Python native namespace packages requires python >= 3.3
    message(SEND_ERROR "OPM requires python >= 3.3 but only version ${Python3_VERSION} was found")
  endif()
  # Compatibility settings for PythonInterp and PythonLibs
  # used e.g. in FindCwrap, pybind11
  set(PYTHON_EXECUTABLE ${Python3_EXECUTABLE})
endif()

if(SIBLING_SEARCH AND NOT opm-common_DIR)
  # guess the sibling dir
  get_filename_component(_leaf_dir_name ${PROJECT_BINARY_DIR} NAME)
  get_filename_component(_parent_full_dir ${PROJECT_BINARY_DIR} DIRECTORY)
  get_filename_component(_parent_dir_name ${_parent_full_dir} NAME)
  #Try if <module-name>/<build-dir> is used
  get_filename_component(_modules_dir ${_parent_full_dir} DIRECTORY)
  if(IS_DIRECTORY ${_modules_dir}/opm-common/${_leaf_dir_name})
    set(opm-common_DIR ${_modules_dir}/opm-common/${_leaf_dir_name})
  else()
    string(REPLACE ${PROJECT_NAME} opm-common _opm_common_leaf ${_leaf_dir_name})
    if(NOT _leaf_dir_name STREQUAL _opm_common_leaf
        AND IS_DIRECTORY ${_parent_full_dir}/${_opm_common_leaf})
      # We are using build directories named <prefix><module-name><postfix>
      set(opm-common_DIR ${_parent_full_dir}/${_opm_common_leaf})
    elseif(IS_DIRECTORY ${_parent_full_dir}/opm-common)
      # All modules are in a common build dir
      set(opm-common_DIR "${_parent_full_dir}/opm-common")
    endif()
  endif()
endif()
if(opm-common_DIR AND NOT IS_DIRECTORY ${opm-common_DIR})
  message(WARNING "Value ${opm-common_DIR} passed to variable"
    " opm-common_DIR is not a directory")
endif()

find_package(opm-common REQUIRED)

include(OpmInit)
OpmSetPolicies()

if(USE_MPI)
  set(HDF5_PREFER_PARALLEL TRUE)
endif()

if(USE_GPU_BRIDGE)
  set(COMPILE_GPU_BRIDGE 1)
endif()

# not the same location as most of the other projects? this hook overrides
macro (dir_hook)
endmacro (dir_hook)

# project information is in dune.module. Read this file and set variables.
# we cannot generate dune.module since it is read by dunecontrol before
# the build starts, so it makes sense to keep the data there then.
include (OpmInit)

# Look for the opm-tests repository; if found the variable
# HAVE_OPM_TESTS will be set to true.
include(Findopm-tests)

# list of prerequisites for this particular project; this is in a
# separate file (in cmake/Modules sub-directory) because it is shared
# with the find module
include ("${project}-prereqs")

# Make sure we are using the same compiler underneath
# NVCC as for the rest. In the case that NVCC does not support
# that compiler it will error out. Unfortunately this will only
# work for CMake >= 3.8. We found no way to make FindCUDA.cmake error
# out. It seems to ignore CMAKE_NVCC_FLAGS and CMAKE. Additionally
# our way of specifying cuda source files never worked for CMake
# version < 3.8. Hence we deactivate cuda for these versions.
# We use "CMAKE_VERSION VERSION_GREATER 3.7.9" instead of
# CMAKE_VERSION VERSION_GREATER_EQUAL 3.8, because of backwards
# compatibility to cmake 3.6 and lower.
if(NOT CMAKE_DISABLE_FIND_PACKAGE_CUDA AND
    CMAKE_VERSION VERSION_GREATER 3.7.9)
  if(CMAKE_BUILD_TYPE)
    set(_flags_suffix "_${CMAKE_BUILD_TYPE}")
  endif()
  if(NOT DEFINED ENV{CUDAHOSTCXX} AND NOT DEFINED CMAKE_CUDA_HOST_COMPILER AND
      (NOT CMAKE_CUDA_FLAGS${_flags_suffix} OR NOT CMAKE_CUDA_FLAGS${_flags_suffix} MATCHES ".*-ccbin .*"))
    message(STATUS "Setting CUDA host compiler CMAKE_CUDA_HOST_COMPILER to ${CMAKE_CXX_COMPILER} to "
      "prevent incompatibilities. Note that this might report that there "
      "is not CUDA compiler if your system's CUDA compiler does not support "
      "${CMAKE_CXX_COMPILER}.")
    # check_language does not seem to care about ${CMAKE_CUDA_FLAGS} or $(CUDA_NVCC_FLAGS}.
    # Hence we set CMAKE_CUDA_HOST_COMPILER to our C++ compiler.
    # In check_language(CUDA) we will get an error if we in addition put
    # "-ccbin ${CMAKE_CXX_COMPILER}" into CMAKE_CUDA_FLAGS. It results
    # in "${NVCC} -ccbin=${CMAKE_CXX_COMPILER}   -ccbin ${CMAKE_CXX_COMPILER}"
    # which causes nvcc to abort
    set(CMAKE_CUDA_HOST_COMPILER ${CMAKE_CXX_COMPILER})
    set(ENV{CUDAHOSTCXX} ${CMAKE_CUDA_HOST_COMPILER}) # The only thing honored by check_language(CUDA)!
  endif()
  include(CheckLanguage)
  check_language(CUDA)
  if(CMAKE_CUDA_COMPILER)
    # OPTIONAL is ignored. Hence the magic above to check whether enabling CUDA works
    enable_language(CUDA OPTIONAL)
    # While the documentation says that it is deprecated, FindCUDA seems the
    # only easy way to determine the cublas and cusparse libraries.
    # Hence we call it unconditionally
    # The WellContributions kernel uses __shfl_down_sync, which was introduced in CUDA 9.0
    find_package(CUDA)
    set(CUDA_FOUND ON)
  endif()
  if(CUDA_FOUND AND CUDA_VERSION VERSION_LESS "9.0")
    set(CUDA_FOUND OFF)
    message(WARNING "Deactivating CUDA as we require version 9.0 or newer."
      " Found only CUDA version ${CUDA_VERSION}.")
  endif()
endif()

find_package(CUDAToolkit)
if(CUDA_FOUND)
  set(HAVE_CUDA 1)
  if(NOT USE_HIP) # no need to include CUDA files if we use rocm stack
    include_directories(${CUDA_INCLUDE_DIRS})
    include_directories(${CUDAToolkit_INCLUDE_DIRS})
  endif()
endif()

if (USE_OPENCL)
  find_package(OpenCL)

  if(OpenCL_FOUND)
    # the current OpenCL implementation relies on cl2.hpp, not cl.hpp
    # make sure it is available, otherwise disable OpenCL
    find_file(CL2_HPP CL/cl2.hpp HINTS ${OpenCL_INCLUDE_DIRS})
    if(CL2_HPP)
      set(HAVE_OPENCL 1)
      include_directories(${OpenCL_INCLUDE_DIRS})
      find_file(OPENCL_HPP CL/opencl.hpp HINTS ${OpenCL_INCLUDE_DIRS})
      if(OPENCL_HPP)
        set(HAVE_OPENCL_HPP 1)
      endif()
    else()
      message(WARNING " OpenCL was found, but this version of opm-simulators relies on CL/cl2.hpp, which implements OpenCL 1.0, 1.1 and 1.2.\n Deactivating OpenCL")
      set(OpenCL_FOUND OFF)
      set(OPENCL_FOUND OFF)
    endif()
    if(USE_CHOW_PATEL_ILU)
      add_compile_options(-DCHOW_PATEL=1)
      if(USE_CHOW_PATEL_ILU_GPU)
        add_compile_options(-DCHOW_PATEL_GPU=1)
        if(USE_CHOW_PATEL_ILU_GPU_PARALLEL)
          add_compile_options(-DCHOW_PATEL_GPU_PARALLEL=1)
        else()
          add_compile_options(-DCHOW_PATEL_GPU_PARALLEL=0)
        endif()
      else()
        add_compile_options(-DCHOW_PATEL_GPU=0)
        add_compile_options(-DCHOW_PATEL_GPU_PARALLEL=0)
      endif()
    endif()
  else()
    if(USE_CHOW_PATEL_ILU)
      message(FATAL_ERROR " CHOW_PATEL_ILU only works for openclSolver, but OpenCL was not found")
    endif()
  endif()
endif()

find_package(amgcl)
if(amgcl_FOUND)
  set(HAVE_AMGCL 1)
  # Linking to target angcl::amgcl drags in OpenMP and -fopenmp as a compile
  # flag. With that nvcc fails as it does not that flag.
  # Hence we set AMGCL_INCLUDE_DIRS.
  get_property(AMGCL_INCLUDE_DIRS TARGET amgcl::amgcl PROPERTY INTERFACE_INCLUDE_DIRECTORIES)
  include_directories(SYSTEM ${AMGCL_INCLUDE_DIRS})
endif()

if(OpenCL_FOUND)
  find_package(VexCL)
  if(VexCL_FOUND)
    set(HAVE_VEXCL 1)
    # generator expressions in vexcl do not seem to work and therefore
    # we cannot use the imported target. Hence we exract the needed info
    # from the targets
    get_property(VEXCL_INCLUDE_DIRS TARGET VexCL::Common PROPERTY INTERFACE_INCLUDE_DIRECTORIES)
    get_property(VEXCL_LINK_LIBRARIES TARGET VexCL::Common PROPERTY INTERFACE_LINK_LIBRARIES)
    get_property(VEXCL_COMPILE_DEFINITIONS TARGET VexCL::OpenCL PROPERTY INTERFACE_COMPILE_DEFINITIONS)
    set(VEXCL_LINK_LIBRARIES "${VEXCL_LINK_LIBRARIES};OpenCL::OpenCL")
    add_library(OPM::VexCL::OpenCL INTERFACE IMPORTED)
    set_target_properties(OPM::VexCL::OpenCL PROPERTIES
      INTERFACE_COMPILE_DEFINITIONS "${VEXCL_COMPILE_DEFINITIONS}"
      INTERFACE_LINK_LIBRARIES "${VEXCL_LINK_LIBRARIES}")
    target_include_directories(OPM::VexCL::OpenCL SYSTEM INTERFACE "${VEXCL_INCLUDE_DIRS}")
  endif()
endif()

if(USE_HYPRE AND USE_MPI)
  find_package(HYPRE)
  if(HYPRE_FOUND)
    set(HAVE_HYPRE 1)
    list(APPEND opm-simulators_LIBRARIES HYPRE::HYPRE)
  else()
    message(WARNING "Hypre requested but not found. Continuing without Hypre support.")
    set(USE_HYPRE OFF)
  endif()
elseif(USE_HYPRE)
  message(WARNING "Hypre requested but MPI not activated. Continuing without Hypre support.")
  set(USE_HYPRE OFF)
  set(HYPRE_FOUND OFF)
endif()

macro (config_hook)
  opm_need_version_of ("dune-common")
  opm_need_version_of ("dune-istl")
  if(dune-fem_FOUND)
      opm_need_version_of ("dune-fem")
  endif()

  if(NOT fmt_FOUND)
    include(DownloadFmt)
  endif()
  if(USE_TRACY_PROFILER AND Tracy_FOUND)
    set(USE_TRACY 1)
    list(APPEND opm-simulators_LIBRARIES Tracy::TracyClient)
  else()
    set(USE_TRACY)
  endif()
  include_directories(${EXTRA_INCLUDES})

  include(UseDamaris)

  if(BUILD_FLOW_FLOAT_VARIANTS)
    set(FLOW_INSTANTIATE_FLOAT 1)
  endif()

  # The parameter system can leverage std::from_chars() for
  # floating-point types if available.  Detect support for this
  # feature.
  try_compile(
    have_float_from_chars
    ${CMAKE_BINARY_DIR}
    ${PROJECT_SOURCE_DIR}/cmake/test/testFloatFromChars.cpp
    CXX_STANDARD 17
  )

  unset(HAVE_FLOATING_POINT_FROM_CHARS)
  if(have_float_from_chars)
    set(HAVE_FLOATING_POINT_FROM_CHARS 1)
  endif()
endmacro (config_hook)

macro (prereqs_hook)
endmacro (prereqs_hook)

macro (sources_hook)
  if(OPENCL_FOUND)
    include(opencl-source-provider)
    list(APPEND opm-simulators_SOURCES ${PROJECT_BINARY_DIR}/clSources.cpp)
  endif()
  if(QuadMath_FOUND)
    get_target_property(qm_defs QuadMath::QuadMath INTERFACE_COMPILE_DEFINITIONS)
    list(APPEND qm_defs HAVE_QUAD=1)
    get_target_property(qm_options QuadMath::QuadMath INTERFACE_COMPILE_OPTIONS)
    set_source_files_properties(opm/models/nonlinear/newtonmethodparams.cpp
                                opm/models/utils/parametersystem.cpp
                                opm/models/utils/simulatorutils.cpp
                                PROPERTIES COMPILE_DEFINITIONS "${qm_defs}"
                                COMPILE_OPTIONS "${qm_options}")
  endif()
endmacro (sources_hook)

macro (fortran_hook)
endmacro (fortran_hook)

macro (files_hook)
  if(hip_FOUND)
    get_filename_component(CXX_COMPILER ${CMAKE_CXX_COMPILER} NAME)
    if(hip_VERSION VERSION_LESS "5.3")
      if(ROCALUTION_FOUND AND NOT CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
        message(WARNING " Cannot use hipcc/clang for rocalution with rocm < 5.3\n Disabling rocalutionSolver")
        unset(ROCALUTION_FOUND)
        unset(HAVE_ROCALUTION)
      endif()
    endif()
    if(rocsparse_FOUND AND rocblas_FOUND)
      set(HAVE_ROCSPARSE 1)
    else()
      unset(HAVE_ROCSPARSE)
    endif()
    if(ROCALUTION_FOUND)
      set(HAVE_ROCALUTION 1)
    endif()
  endif()
  if(MPI_FOUND AND HDF5_FOUND AND NOT HDF5_IS_PARALLEL)
    message(WARNING "When building parallel OPM flow we need a "
      "parallel version of hdf5, but found only a serial one. "
      "Please install a parallel hdf5 library for MPI "
      "(e.g with apt-get install libhdf5-mpi-dev) and do a clean "
      "rebuild (build after \"make clean\"). Continuing with "
      "only normal restart without hdf5 file support.")
    set(HDF5_FOUND OFF)
    unset(HAVE_HDF5)
  endif()
  if(HAVE_ROCSPARSE AND HAVE_CUDA AND USE_GPU_BRIDGE) # unsure if this is the correct way to change this
    message(WARNING "WARNING! Using CUDA and ROCm at the same time is not allowed. Please choose only one of them by setting CMAKE_DISABLE_FIND_PACKAGE_<rocsparse|CUDA>=<ON|OFF>. Disabling CUDA...\n")
    set(CUDA_FOUND OFF)
    unset(HAVE_CUDA)
  endif()
  # read the list of components from this file (in the project directory);
  # it should set various lists with the names of the files to include
  # include needs to be here to make reset HDF5_FOUND available in
  # (CMakeLists_files.cmake and because we need the created lists during
  # then inclusion of OpmLibMain
  include (CMakeLists_files.cmake)
endmacro (files_hook)

macro (tests_hook)
  if(HYPRE_FOUND)
    list(APPEND tests_SOURCES tests/test_HyprePreconditionerCPU.cpp)
    if(HYPRE_USING_CUDA OR HYPRE_USING_HIP)
      list(APPEND tests_SOURCES tests/test_HyprePreconditionerGPU.cpp)
    endif()
  endif()
endmacro (tests_hook)


# all setup common to the OPM library modules is done here
include (OpmLibMain)

opm_add_test(test_tuning_xxxMBE
              SOURCES
                tests/test_tuning_XXXMBE.cpp
              LIBRARIES
                ${Boost_UNIT_TEST_FRAMEWORK_LIBRARY}
              ONLY_COMPILE)

opm_add_test(test_tuning_tsinit_nextstep
              SOURCES
                tests/test_tuning_TSINIT_NEXTSTEP.cpp
              LIBRARIES
                ${Boost_UNIT_TEST_FRAMEWORK_LIBRARY} opmcommon
              ONLY_COMPILE)

# this test is identical to the simulation of the lens problem that
# uses the element centered finite volume discretization in
# conjunction with automatic differentiation
# (lens_immiscible_ecfv_ad). The only difference is that it uses
# multiple compile units in order to ensure that eWoms code can be
# used within libraries that use the same type tag within multiple
# compile units.
opm_add_test(lens_immiscible_ecfv_ad_mcu
             SOURCES
              examples/lens_immiscible_ecfv_ad_cu1.cpp
              examples/lens_immiscible_ecfv_ad_cu2.cpp
              examples/lens_immiscible_ecfv_ad_main.cpp
             LIBRARIES
              opmsimulators opmcommon
             ONLY_COMPILE)

if(QuadMath_FOUND)
  foreach(tapp co2injection_flash_ni_ecfv
               co2injection_flash_ni_vcfv
               co2injection_flash_ecfv
               co2injection_flash_vcfv)
    opm_add_test(${tapp}_quad
                 LIBRARIES opmsimulators opmcommon
                 EXE_NAME ${tapp}_quad
                 SOURCES
                 examples/${tapp}.cpp
                 ONLY_COMPILE)
    target_link_libraries(${tapp}_quad QuadMath::QuadMath)
    target_compile_definitions(${tapp}_quad PRIVATE HAVE_QUAD=1)
  endforeach()
endif()

target_sources(test_outputdir PRIVATE $<TARGET_OBJECTS:moduleVersion>)
target_sources(test_equil PRIVATE $<TARGET_OBJECTS:moduleVersion>)
target_sources(test_RestartSerialization PRIVATE $<TARGET_OBJECTS:moduleVersion>)
target_sources(test_glift1 PRIVATE $<TARGET_OBJECTS:moduleVersion>)

include (${CMAKE_CURRENT_SOURCE_DIR}/modelTests.cmake)

if (HAVE_OPM_TESTS)
  include (${CMAKE_CURRENT_SOURCE_DIR}/compareECLFiles.cmake)

  if(OPM_ENABLE_PYTHON)
    if(${CMAKE_BINARY_DIR} STREQUAL ${PROJECT_BINARY_DIR})
      set(sim_dir ${CMAKE_BINARY_DIR})
    else()
      set(sim_dir ${CMAKE_BINARY_DIR}/opm-simulators)
    endif()
    add_custom_target(failure_report
                      USES_TERMINAL
                      COMMAND ${CMAKE_COMMAND} -E env "PYTHONPATH=${opm-common_DIR}/python"
                      ${PROJECT_SOURCE_DIR}/tests/make_failure_report.sh
                      ${OPM_TESTS_ROOT} ${CMAKE_BINARY_DIR} ${sim_dir})
  endif()
endif()

if(MPI_FOUND)
  include (${CMAKE_CURRENT_SOURCE_DIR}/parallelUnitTests.cmake)
endif()

include(OpmBashCompletion)

if (NOT BUILD_FLOW)
  set(FLOW_DEFAULT_ENABLE_IF "FALSE")
else()
  set(FLOW_DEFAULT_ENABLE_IF "TRUE")
endif()

if (NOT BUILD_FLOW_VARIANTS)
  set(FLOW_VARIANTS_DEFAULT_ENABLE_IF "FALSE")
else()
  set(FLOW_VARIANTS_DEFAULT_ENABLE_IF "TRUE")
endif()

if (NOT BUILD_FLOW_POLY_GRID)
  set(FLOW_POLY_ONLY_DEFAULT_ENABLE_IF "FALSE")
else()
  set(FLOW_POLY_ONLY_DEFAULT_ENABLE_IF "TRUE")
endif()

add_library(moduleVersion OBJECT opm/simulators/utils/moduleVersion.cpp)
set_property(TARGET moduleVersion PROPERTY POSITION_INDEPENDENT_CODE ON)

# Strictly we only depend on the update-version target,
# but this is not exposed in a super-build.
add_dependencies(moduleVersion opmsimulators)

set(FLOW_MODELS blackoil brine energy extbo foam gasoil gaswater
                oilwater oilwater_brine gaswater_brine oilwater_polymer
                oilwater_polymer_injectivity micp polymer solvent solvent_foam
                gasoil_energy brine_saltprecipitation
                gaswater_saltprec_vapwat gaswater_saltprec_energy brine_precsalt_vapwat
                blackoil_legacyassembly gasoildiffuse gaswater_dissolution
                gaswater_dissolution_diffuse gaswater_energy gaswater_solvent)
set(FLOW_VARIANT_MODELS brine_energy onephase onephase_energy)

set(FLOW_TGTS)
foreach(OBJ ${COMMON_MODELS} ${FLOW_MODELS} ${FLOW_VARIANT_MODELS})
  add_library(flow_lib${OBJ} OBJECT flow/flow_${OBJ}.cpp)
  list(APPEND FLOW_TGTS $<TARGET_OBJECTS:flow_lib${OBJ}>)
  if(TARGET fmt::fmt)
    target_link_libraries(flow_lib${OBJ} fmt::fmt)
  endif()
  if(TARGET opmcommon)
      add_dependencies(flow_lib${OBJ} opmcommon)
  endif()
  opm_add_test(flow_${OBJ}
               ONLY_COMPILE
               SOURCES
               flow/flow_${OBJ}_main.cpp
               $<TARGET_OBJECTS:moduleVersion>
               $<TARGET_OBJECTS:flow_lib${OBJ}>
               EXE_NAME flow_${OBJ}
               DEPENDS opmsimulators
               LIBRARIES opmsimulators)
endforeach()
set_property(TARGET flow_libblackoil PROPERTY POSITION_INDEPENDENT_CODE ON)

foreach(OBJ ${FLOW_VARIANT_MODELS})
  set_property(TARGET flow_lib${OBJ} PROPERTY EXCLUDE_FROM_ALL ${FLOW_VARIANTS_DEFAULT_ENABLE_IF})
endforeach()

opm_add_test(flow
  ONLY_COMPILE
  ALWAYS_ENABLE
  DEFAULT_ENABLE_IF ${FLOW_DEFAULT_ENABLE_IF}
  DEPENDS opmsimulators
  LIBRARIES opmsimulators
  SOURCES
  flow/flow.cpp
  ${FLOW_TGTS}
  $<TARGET_OBJECTS:moduleVersion>
  )

opm_add_test(flow_blackoil_polyhedralgrid
  ONLY_COMPILE
  ALWAYS_ENABLE
  DEFAULT_ENABLE_IF ${FLOW_POLY_ONLY_DEFAULT_ENABLE_IF}
  DEPENDS opmsimulators
  LIBRARIES opmsimulators
  SOURCES
  flow/flow_blackoil_polyhedralgrid.cpp
  $<TARGET_OBJECTS:moduleVersion>)

opm_add_test(flow_distribute_z
  ONLY_COMPILE
  ALWAYS_ENABLE
  DEFAULT_ENABLE_IF ${FLOW_DEFAULT_ENABLE_IF}
  DEPENDS opmsimulators
  LIBRARIES opmsimulators
  SOURCES
  flow/flow_distribute_z.cpp
  ${FLOW_TGTS}
  $<TARGET_OBJECTS:moduleVersion>
  )

opm_add_test(flowexp_blackoil
  ONLY_COMPILE
  ALWAYS_ENABLE
  DEPENDS opmsimulators
  LIBRARIES opmsimulators
  SOURCES
  flowexperimental/flowexp_blackoil.cpp
  $<TARGET_OBJECTS:moduleVersion>
)

# We now specify the files we actually want to compile
set(FLOWEXP_COMPONENTS_SOURCES)
foreach(component IN LISTS OPM_COMPILE_COMPONENTS)
  list(APPEND FLOWEXP_COMPONENTS_SOURCES flowexperimental/comp/flowexp_comp${component}.cpp)
endforeach()

opm_add_test(flowexp_comp
  ONLY_COMPILE
  ALWAYS_ENABLE
  DEPENDS opmsimulators
  LIBRARIES opmsimulators
  SOURCES
  flowexperimental/comp/flowexp_comp.cpp
  ${FLOWEXP_COMPONENTS_SOURCES}
  $<TARGET_OBJECTS:moduleVersion>
)

if(dune-alugrid_FOUND)
  if (NOT BUILD_FLOW_ALU_GRID)
    set(FLOW_ALUGRID_ONLY_DEFAULT_ENABLE_IF "FALSE")
  else()
    set(FLOW_ALUGRID_ONLY_DEFAULT_ENABLE_IF "TRUE")
  endif()

  opm_add_test(flow_blackoil_alugrid
    ONLY_COMPILE
    ALWAYS_ENABLE
    DEFAULT_ENABLE_IF ${FLOW_ALUGRID_ONLY_DEFAULT_ENABLE_IF}
    DEPENDS opmsimulators
    LIBRARIES opmsimulators
    SOURCES
    flow/flow_blackoil_alugrid.cpp
    $<TARGET_OBJECTS:moduleVersion>)
endif()

if (BUILD_FLOW)
  install(TARGETS flow DESTINATION bin)
  opm_add_bash_completion(flow)

  add_test(NAME flow__version
    COMMAND flow --version)
  set_tests_properties(flow__version PROPERTIES
    PASS_REGULAR_EXPRESSION "${${project}_LABEL}")
endif()

if(BUILD_FLOW_FLOAT_VARIANTS)
  opm_add_test(flow_blackoil_float
    ONLY_COMPILE
    ALWAYS_ENABLE
    DEFAULT_ENABLE_IF ${FLOW_DEFAULT_ENABLE_IF}
    DEPENDS opmsimulators
    LIBRARIES opmsimulators
    SOURCES
    flow/flow_blackoil_float_main.cpp
    $<TARGET_OBJECTS:moduleVersion>)
endif()

if (OPM_ENABLE_PYTHON)
  add_subdirectory(python)
endif()

add_custom_target(extra_test ${CMAKE_CTEST_COMMAND} -C ExtraTests)

# must link libraries after target 'opmsimulators' has been defined

if(CUDA_FOUND)
  if (NOT USE_HIP)
    target_link_libraries(opmsimulators
      PUBLIC
      ${CUDA_cusparse_LIBRARY}
      ${CUDA_cublas_LIBRARY}
      ${CUDA_nvptxcompiler_static_LIBRARY}
    )

    foreach(tgt test_gpu_safe_call test_cuda_check_last_error test_GpuVector)
      target_link_libraries(${tgt} CUDA::cudart)
    endforeach()
  endif()
  if(USE_GPU_BRIDGE)
    set_tests_properties(cusparseSolver PROPERTIES LABELS gpu_cuda)
  endif()

  # CUISTL
  set(gpu_label "gpu_cuda")
  if(USE_HIP)
    set(gpu_label "gpu_hip")
  endif()
  set_tests_properties(cusparse_safe_call
                       cublas_safe_call
                       gpu_safe_call
                       cuda_check_last_error
                       cublas_handle
                       GpuJac
                       GpuDILU
                       cusparse_handle
                       cuSparse_matrix_operations
                       cuVector_operations
                       GpuVector
                       GpuSparseMatrix
                       GpuSeqILU0
                       GpuOwnerOverlapCopy
                       solver_adapter
                       GpuBuffer
                       GpuView
                       gpu_ad
                       gpu_linear_two_phase_material
                       gpuPvt
                       PROPERTIES LABELS ${gpu_label})
endif()

if(HYPRE_FOUND)
  if (HYPRE_USING_CUDA)
    set_tests_properties(HyprePreconditionerGPU PROPERTIES LABELS gpu_cuda)
  elseif (HYPRE_USING_HIP)
    set_tests_properties(HyprePreconditionerGPU PROPERTIES LABELS gpu_hip)
  endif()
endif()

if(USE_GPU_BRIDGE)
  if(OpenCL_FOUND)
    target_link_libraries( opmsimulators PUBLIC ${OpenCL_LIBRARIES} )
    set_tests_properties(openclSolver solvetransposed3x3 csrToCscOffsetMap
                         PROPERTIES LABELS gpu_opencl)
  endif()

  if(ROCALUTION_FOUND)
    target_include_directories(opmsimulators PUBLIC ${rocalution_INCLUDE_DIR}/rocalution)
    set_tests_properties(rocalutionSolver PROPERTIES LABELS gpu_rocm)
  endif()

  if(rocsparse_FOUND AND rocblas_FOUND)
    target_link_libraries( opmsimulators PUBLIC roc::rocsparse )
    target_link_libraries( opmsimulators PUBLIC roc::rocblas )
    set_tests_properties(rocsparseSolver PROPERTIES LABELS gpu_rocm)
  endif()

  if(VexCL_FOUND)
    target_link_libraries( opmsimulators PUBLIC OPM::VexCL::OpenCL )
  endif()
endif()

if(USE_DAMARIS_LIB AND Damaris_FOUND)
  target_link_libraries(opmsimulators PUBLIC damaris)
endif()

install(DIRECTORY doc/man1 DESTINATION ${CMAKE_INSTALL_MANDIR}
  FILES_MATCHING PATTERN "*.1")