# Copyright (c) Lawrence Livermore National Security, LLC and other Ascent
# Project developers. See top-level LICENSE AND COPYRIGHT files for dates and
# other details. No copyright assignment is required to contribute to Ascent.


# setup vars for config gen
if(ENABLE_OPENMP)
    set(APCOMP_OPENMP_ENABLED TRUE)
endif()

configure_file ("${CMAKE_CURRENT_SOURCE_DIR}/apcomp_config.h.in"
                "${CMAKE_CURRENT_BINARY_DIR}/apcomp_config.h")


set(apcomp_headers
    apcomp.hpp
    apcomp_exports.h
    bounds.hpp
    error.hpp
    image.hpp
    compositor.hpp
    partial_compositor.hpp
    scalar_compositor.hpp
    scalar_image.hpp
    absorption_partial.hpp
    emission_partial.hpp
    volume_partial.hpp
  )

set(apcomp_sources
    apcomp.cpp
    image.cpp
    compositor.cpp
    partial_compositor.cpp
    scalar_compositor.cpp
  )


install(FILES ${apcomp_headers} DESTINATION include/ascent/apcomp)

#------------------------------------------------------------------------------
# serial (non mpi) apcomp lib
#------------------------------------------------------------------------------
if (ENABLE_SERIAL)
    set(apcomp_deps conduit::conduit ascent_png_utils)

    if(ENABLE_OPENMP)
        list(APPEND apcomp_deps ${ascent_blt_openmp_deps})
    endif()

    blt_add_library(NAME apcomp
                    SOURCES ${apcomp_sources}
                    HEADERS ${apcomp_headers}
                    DEPENDS_ON ${apcomp_deps}
                    )

    # extra defs and props
    target_compile_definitions(apcomp PRIVATE ASCENT_EXPORTS_FLAG)

    if(ENABLE_HIDDEN_VISIBILITY)
        set_target_properties(apcomp PROPERTIES CXX_VISIBILITY_PRESET hidden)
    endif()

    # build includes
    # this allows us to include as <apcomp/header.hpp>
    target_include_directories(apcomp PUBLIC $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/libs/>)
    target_include_directories(apcomp PUBLIC $<BUILD_INTERFACE:${PROJECT_BINARY_DIR}/libs/>)
    # install includes
    # setup exported target to point to proper include dir
    target_include_directories(apcomp PUBLIC $<INSTALL_INTERFACE:include/ascent/apcomp>)

    # install target
    install(TARGETS apcomp
            EXPORT  ascent
            LIBRARY DESTINATION lib
            ARCHIVE DESTINATION lib
            RUNTIME DESTINATION lib
    )



endif()

#------------------------------------------------------------------------------
# parallel apcomp_mpi lib
#------------------------------------------------------------------------------
if (MPI_FOUND)
    set(apcomp_mpi_headers
        internal/DirectSendCompositor.hpp
        internal/MPICollect.hpp
        internal/RadixKCompositor.hpp
        internal/apcomp_diy_collect.hpp
        internal/apcomp_diy_image_block.hpp
        internal/apcomp_diy_utils.hpp
      )

    # install extra mpi related headers
    install(FILES  ${apcomp_mpi_headers} DESTINATION include/ascent/apcomp)

    list(APPEND apcomp_mpi_headers ${apcomp_headers})

    set(apcomp_mpi_sources
        internal/DirectSendCompositor.cpp
        internal/RadixKCompositor.cpp
      )

    list(APPEND apcomp_mpi_sources ${apcomp_sources})

    set(apcomp_mpi_deps conduit::conduit ascent_png_utils ${ascent_blt_mpi_deps})

    if(ENABLE_OPENMP)
         list(APPEND apcomp_mpi_deps ${ascent_blt_openmp_deps})
    endif()

    blt_add_library(NAME apcomp_mpi
                    SOURCES ${apcomp_sources} ${apcomp_mpi_sources}
                    HEADERS ${apcomp_headers} ${apcomp_mpi_headers}
                    DEPENDS_ON ${apcomp_mpi_deps}
                    )

    # build includes
    # this allows us to include as <apcomp/header.hpp>
    target_include_directories(apcomp_mpi PUBLIC $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/libs/>)
    target_include_directories(apcomp_mpi PUBLIC $<BUILD_INTERFACE:${PROJECT_BINARY_DIR}/libs/>)
    target_include_directories(apcomp_mpi PRIVATE $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/internal/diy/include/>)
    # install includes
    # setup exported target to point to proper include dir
    target_include_directories(apcomp_mpi PUBLIC $<INSTALL_INTERFACE:include/ascent/apcomp>)

    # extra defs and props
    target_compile_definitions(apcomp_mpi PRIVATE APCOMP_PARALLEL)
    target_compile_definitions(apcomp_mpi PRIVATE ASCENT_EXPORTS_FLAG)

    # avoid mpi C++ apis + link dep of libmpi_cxx
    target_compile_definitions(apcomp_mpi PUBLIC ${ASCENT_MPI_SKIP_MPICXX_DEFINES} )

    if(ENABLE_HIDDEN_VISIBILITY)
        set_target_properties(apcomp_mpi PROPERTIES CXX_VISIBILITY_PRESET hidden)
    endif()

    # install target
    install(TARGETS apcomp_mpi
            EXPORT  ascent
            LIBRARY DESTINATION lib
            ARCHIVE DESTINATION lib
            RUNTIME DESTINATION lib
    )

endif()