#
# This source file is part of appleseed.
# Visit https://appleseedhq.net/ for additional information and resources.
#
# This software is released under the MIT license.
#
# Copyright (c) 2010-2013 Francois Beaune, Jupiter Jazz Limited
# Copyright (c) 2014-2018 Francois Beaune, The appleseedhq Organization
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#


#--------------------------------------------------------------------------------------------------
# Packages.
#--------------------------------------------------------------------------------------------------

set (BOOST_NEEDED_LIBS)

# TODO: does '106700' still make sense here?

if (WITH_PYTHON2_BINDINGS)
    if (Boost_VERSION GREATER_EQUAL 106700)
        set (BOOST_NEEDED_LIBS ${BOOST_NEEDED_LIBS} python27)
    else ()
        set (BOOST_NEEDED_LIBS ${BOOST_NEEDED_LIBS} python)
    endif ()
endif ()

if (WITH_PYTHON3_BINDINGS)
    find_package (Python3 REQUIRED)
    find_package (OpenGL REQUIRED)

    if (Boost_VERSION GREATER_EQUAL 106700)
        set (BOOST_NEEDED_LIBS ${BOOST_NEEDED_LIBS} python37)
    else ()
        set (BOOST_NEEDED_LIBS ${BOOST_NEEDED_LIBS} python3)
    endif ()
endif ()

find_package (Boost 1.86.00 REQUIRED COMPONENTS ${BOOST_NEEDED_LIBS})


#--------------------------------------------------------------------------------------------------
# Source files.
#--------------------------------------------------------------------------------------------------

file (GLOB test_sources test/*.py)
list (APPEND appleseed.python_sources
    ${test_sources}
)
source_group ("test" FILES
    ${test_sources}
)

set (sources
    __init__.py
    bindaov.cpp
    bindappleseed.cpp
    bindassembly.cpp
    bindbasis.cpp
    bindbbox.cpp
    bindbsdf.cpp
    bindbssrdf.cpp
    bindcamera.cpp
    bindcolor.cpp
    bindcurveobject.cpp
    binddisplay.cpp
    bindedf.cpp
    bindentity.cpp
    bindentitycontainers.h
    bindenvironment.cpp
    bindframe.cpp
    bindfresnel.cpp
    bindimage.cpp
    bindlight.cpp
    bindlogger.cpp
    bindmasterrenderer.cpp
    bindmaterial.cpp
    bindmatrix.cpp
    bindmeshobject.cpp
    bindmurmurhash.cpp
    bindobject.cpp
    bindpostprocessingstage.cpp
    bindproject.cpp
    bindquaternion.cpp
    bindrenderercontroller.cpp
    bindscene.cpp
    bindshadercompiler.cpp
    bindshadergroup.cpp
    bindshaderquery.cpp
    bindsurfaceshader.cpp
    bindtexture.cpp
    bindtilecallback.cpp
    bindtransform.cpp
    bindutility.cpp
    bindvector.cpp
    bindvolume.cpp
    dict2dict.cpp
    dict2dict.h
    gillocks.h
    gillocks.cpp
    logtarget.py
    metadata.h
    module.cpp
    unalignedmatrix44.h
    unalignedtransform.h
)
list (APPEND appleseed.python_sources
    ${sources}
)
set (blender_python_sources
    bindblenderexport.cpp
    bindblenderprogressivetilecallback.cpp
)
source_group ("" FILES
    ${sources}
    ${blender_python_sources}
)


#--------------------------------------------------------------------------------------------------
# Targets.
#--------------------------------------------------------------------------------------------------

if (WITH_PYTHON2_BINDINGS)
    add_library (appleseed.py2.obj OBJECT
        ${appleseed.python_sources}
    )

    add_library (appleseed.python MODULE
        $<TARGET_OBJECTS:appleseed.py2.obj>
    )

    set_target_properties (appleseed.py2.obj PROPERTIES FOLDER "Python Bindings")
    set_target_properties (appleseed.python PROPERTIES FOLDER "Python Bindings")

    set_target_properties (appleseed.python PROPERTIES
        PREFIX ""
        OUTPUT_NAME "_appleseedpython"
    )

    if (CMAKE_SYSTEM_NAME STREQUAL "Windows")
        set_target_properties (appleseed.python PROPERTIES
            SUFFIX ".pyd"
        )
    endif ()
endif ()

if (WITH_PYTHON3_BINDINGS)
    add_library (appleseed.python3 MODULE
        ${appleseed.python_sources}
        ${blender_python_sources}
    )

    set_target_properties (appleseed.python3 PROPERTIES FOLDER "Python Bindings")

    set_target_properties (appleseed.python3 PROPERTIES
        PREFIX ""
        OUTPUT_NAME "_appleseedpython3"
    )

    if (CMAKE_SYSTEM_NAME STREQUAL "Windows")
        set_target_properties (appleseed.python3 PROPERTIES
            SUFFIX ".pyd"
        )
    endif ()

    target_link_libraries (appleseed.python3
        ${OPENGL_LIBRARY}
    )
endif ()


#--------------------------------------------------------------------------------------------------
# Include paths.
#--------------------------------------------------------------------------------------------------

include_directories (
    .
    ../appleseed.common
)

if (WITH_PYTHON2_BINDINGS)
    target_include_directories (appleseed.py2.obj PRIVATE ${PYTHON_INCLUDE_DIRS})
endif ()

if (WITH_PYTHON3_BINDINGS)
    target_include_directories (appleseed.python3 PRIVATE ${PYTHON3_INCLUDE_DIRS})
endif ()


#--------------------------------------------------------------------------------------------------
# Preprocessor definitions.
#--------------------------------------------------------------------------------------------------

if (WITH_PYTHON2_BINDINGS)
    apply_preprocessor_definitions (appleseed.py2.obj)

    append_custom_preprocessor_definitions (appleseed.py2.obj
        APPLESEED_ENABLE_IMATH_INTEROP
    )
endif ()

if (WITH_PYTHON3_BINDINGS)
    apply_preprocessor_definitions (appleseed.python3)

    append_custom_preprocessor_definitions (appleseed.python3
        APPLESEED_ENABLE_IMATH_INTEROP
    )
endif ()


#--------------------------------------------------------------------------------------------------
# Static libraries.
#--------------------------------------------------------------------------------------------------

if (WITH_PYTHON2_BINDINGS)
    link_against_platform (appleseed.python)

    target_link_libraries (appleseed.python
        appleseed
        ${Boost_PYTHON_LIBRARY}         # Only Boost.Python2 library
    )

    if (CMAKE_SYSTEM_NAME STREQUAL "Windows")
        target_link_libraries (appleseed.python
            ${PYTHON_LIBRARIES}
        )
    endif ()

    if (CMAKE_SYSTEM_NAME STREQUAL "Darwin")
        set_target_properties (appleseed.python PROPERTIES LINK_FLAGS "-undefined dynamic_lookup")
    endif ()
endif ()

if (WITH_PYTHON3_BINDINGS)
    link_against_platform (appleseed.python3)

    target_link_libraries (appleseed.python3
        appleseed
        glad
        ${Boost_PYTHON3_LIBRARY}        # Only Boost.Python3 library
    )

    if (CMAKE_SYSTEM_NAME STREQUAL "Windows")
        target_link_libraries (appleseed.python3
            ${PYTHON3_LIBRARY}
        )
    endif ()

    if (CMAKE_SYSTEM_NAME STREQUAL "Darwin")
        set_target_properties (appleseed.python3 PROPERTIES LINK_FLAGS "-undefined dynamic_lookup")
    endif ()

    if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
        target_link_libraries (appleseed.python3
            util
        )
    endif ()
endif ()


#--------------------------------------------------------------------------------------------------
# Post-build commands.
#--------------------------------------------------------------------------------------------------

add_custom_target (
    appleseed.python.copy_py_files ALL
    VERBATIM
)

set_target_properties (appleseed.python.copy_py_files PROPERTIES FOLDER "Contents")
set_target_progress_message (appleseed.python.copy_py_files "Copying appleseed.python Python files...")

add_copy_py_file_to_sandbox_py_module_command (${PROJECT_SOURCE_DIR}/src/appleseed.python/__init__.py appleseed)
add_copy_py_file_to_sandbox_py_module_command (${PROJECT_SOURCE_DIR}/src/appleseed.python/logtarget.py appleseed)
add_copy_py_file_to_sandbox_py_module_command (${PROJECT_SOURCE_DIR}/src/appleseed.python/textureconverter.py appleseed)
add_copy_dir_to_sandbox_py_module_command (${PROJECT_SOURCE_DIR}/src/appleseed.python/test appleseed)

if (WITH_PYTHON2_BINDINGS)
    add_copy_target_to_sandbox_py_module_command (appleseed.python appleseed)
endif ()

if (WITH_PYTHON3_BINDINGS)
    add_copy_target_to_sandbox_py_module_command (appleseed.python3 appleseed)
endif ()


#--------------------------------------------------------------------------------------------------
# Installation.
#--------------------------------------------------------------------------------------------------

set (py_module_dst "lib/python/appleseed")

install (FILES __init__.py DESTINATION ${py_module_dst})
install (FILES logtarget.py DESTINATION ${py_module_dst})
install (DIRECTORY test DESTINATION ${py_module_dst})

if (WITH_PYTHON2_BINDINGS)
    install (TARGETS appleseed.python DESTINATION ${py_module_dst})
endif()

if (WITH_PYTHON3_BINDINGS)
    install (TARGETS appleseed.python3 DESTINATION ${py_module_dst})
endif ()