# Libsimpa
#---------------------------------------#
#    DEPENDENCY & EXECUTABLE (OR LIB)
#---------------------------------------#

# require swig > v3

find_package(SWIG REQUIRED)
include(UseSWIG)

list(APPEND CMAKE_SWIG_FLAGS "-doxygen")

if(UNIX AND NOT APPLE)
    list(APPEND CMAKE_SWIG_FLAGS "-DSWIGWORDSIZE64")
endif()

# Find Python 3
find_package(Python3 REQUIRED COMPONENTS Interpreter Development.Module)
list(APPEND CMAKE_SWIG_FLAGS "-py3" "-DPY3")


INCLUDE_DIRECTORIES(${PYTHON_INCLUDE_PATH})

INCLUDE_DIRECTORIES("${PROJECT_SOURCE_DIR}/src/lib_interface")

INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})

SET_SOURCE_FILES_PROPERTIES(libsimpa.i PROPERTIES CPLUSPLUS ON)

SWIG_ADD_LIBRARY(libsimpa LANGUAGE python SOURCES libsimpa.i)

SWIG_LINK_LIBRARIES(libsimpa lib_interface)

SetupBoost()

# Force use of release Python library even in debug builds
if(WIN32 AND CMAKE_BUILD_TYPE MATCHES Debug)
    # Remove the _d suffix that CMake adds for debug builds
    set_target_properties(Python3::Module PROPERTIES
            IMPORTED_LOCATION_DEBUG "${Python3_LIBRARY_RELEASE}"
    )
    # Prevent automatic _d suffix addition
    add_compile_definitions(SWIG_PYTHON_INTERPRETER_NO_DEBUG)
endif()

target_link_libraries(${SWIG_MODULE_libsimpa_REAL_NAME} Boost::python Boost::thread)

# Creates a folder "libraries" and adds target project (lib_interface.vcproj) under it
set_property(TARGET ${SWIG_MODULE_libsimpa_REAL_NAME} PROPERTY FOLDER "libraries")

add_custom_command(
        TARGET libsimpa POST_BUILD
        COMMAND ${CMAKE_COMMAND} -E copy_if_different
        ${CMAKE_CURRENT_BINARY_DIR}/libsimpa.py
        "$<TARGET_FILE_DIR:libsimpa>/__init__.py"
        COMMENT "Renaming libsimpa.py to __init__.py for Python package"
)
#--------------#
#    INSTALL
#--------------#

# Detect if building for Flatpak
if(DEFINED ENV{FLATPAK_ID})
    set(IS_FLATPAK TRUE)
    message(STATUS "Building for Flatpak environment")
else()
    set(IS_FLATPAK FALSE)
endif()

if(LIBSIMPA_ONLY)
    # Set installation directories based on build type
    # Flatpak and pip uses standard FHS paths
    set(PYTHON_SITE_PACKAGES "${CMAKE_INSTALL_PREFIX}/lib/python${Python3_VERSION_MAJOR}.${Python3_VERSION_MINOR}/site-packages")

    # Install the SWIG-generated extension module
    install (TARGETS ${SWIG_MODULE_libsimpa_REAL_NAME}
            LIBRARY DESTINATION ${PYTHON_SITE_PACKAGES}/libsimpa/
            RUNTIME DESTINATION ${PYTHON_SITE_PACKAGES}/libsimpa/
            COMPONENT libsimpa
    )

    if( CMAKE_INSTALL_SYSTEM_RUNTIME_LIBS )
        install(PROGRAMS ${CMAKE_INSTALL_SYSTEM_RUNTIME_LIBS}
                DESTINATION ${PYTHON_SITE_PACKAGES}/libsimpa
                COMPONENT libsimpa_dependencies )
    endif( CMAKE_INSTALL_SYSTEM_RUNTIME_LIBS )

    # Install Python files
    install (FILES
            ${CMAKE_CURRENT_SOURCE_DIR}/__init__.py
            DESTINATION ${PYTHON_SITE_PACKAGES}/libsimpa/
            COMPONENT libsimpa )



    if(WIN32)
        get_filename_component(PYTHON_PATH ${Python3_EXECUTABLE} DIRECTORY)
        #Fetch required Dll's
        set(DIRS ${Boost_LIBRARY_DIR_DEBUG}
                ${Boost_LIBRARY_DIR_RELEASE}
                ${PYTHON_PATH}
        )

        install(CODE "
        include(BundleUtilities)
        # Rename to .exe as cmake check if the file ends with .exe in windows before gathering dependencies..
        file(RENAME \"${PYTHON_SITE_PACKAGES}/libsimpa/_libsimpa.pyd\" \"${PYTHON_SITE_PACKAGES}/libsimpa/_libsimpa.exe\")
        fixup_bundle(\"${PYTHON_SITE_PACKAGES}/libsimpa/_libsimpa.exe\" \"\"   \"${DIRS}\")
        file(RENAME \"${PYTHON_SITE_PACKAGES}/libsimpa/_libsimpa.exe\" \"${PYTHON_SITE_PACKAGES}/libsimpa/_libsimpa.pyd\")
    "
        COMPONENT libsimpa_dependencies)
    endif()
endif ()
#------------#
#    TEST
#------------#

enable_testing()
# If you add tests, do not forget to add the name to set_property(TEST ..


MESSAGE(STATUS "Run test in ${CMAKE_CURRENT_BINARY_DIR}")

add_test(NAME test_modelio
        COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/tests/model_io.py ${PROJECT_BINARY_DIR}/Testing/Temporary/)

add_test(NAME check_retrocompat
        COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/tests/check_retrocompat.py ${CMAKE_CURRENT_SOURCE_DIR}/tests/mesh.cbin ${PROJECT_BINARY_DIR}/Testing/Temporary/)

add_test(NAME check_retrocompat_mesh
        COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/tests/check_retrocompat_mesh.py ${CMAKE_CURRENT_SOURCE_DIR}/tests/tetramesh.mbin ${PROJECT_BINARY_DIR}/Testing/Temporary/)

add_test(NAME check_retrocompat_gabe
        COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/tests/check_retrocompat_gabe.py ${PROJECT_BINARY_DIR}/Testing/Temporary/)

add_test(NAME test_math
        COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/tests/test_math.py)

add_test(NAME check_retrocompat_recsurf
        COMMAND ${Python3_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/tests/check_retrocompat_recsurf.py)

set_property(TEST test_modelio check_retrocompat check_retrocompat_mesh check_retrocompat_gabe test_math check_retrocompat_recsurf
        PROPERTY ENVIRONMENT "PYTHONPATH=${PYTHON_SITE_PACKAGES}"
)