# https://stackoverflow.com/questions/51907755/building-a-pybind11-module-with-cpp-and-cuda-sources-using-cmake

cmake_minimum_required(VERSION 3.15)
set(CMAKE_POLICY_VERSION_MINIMUM 3.5)

project(python-samplerate)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

set(PYBIND11_FINDPYTHON ON)

###################################################
# no external dependencies for Debian
###################################################
# # adds the external dependencies
# add_subdirectory(external)

set(PYBIND11_FINDPYTHON ON)
find_package(pybind11 CONFIG REQUIRED)
pybind11_add_module(python-samplerate src/samplerate.cpp)

###################################################
# here is the path to C headers provided by the package python3-samplerate
###################################################
# 
# target_include_directories(python-samplerate PRIVATE ./external/libsamplerate/include)

target_include_directories(python-samplerate PRIVATE /usr/lib/python3/dist-packages/pybind11/include/)

if(MSVC)
    target_compile_options(python-samplerate PRIVATE /EHsc /MP /bigobj)
    set(CMAKE_EXE_LINKER_FLAGS /MANIFEST:NO)
endif()

if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR
    CMAKE_CXX_COMPILER_ID MATCHES "GNU" OR
    (CMAKE_CXX_COMPILER_ID MATCHES "Intel" AND NOT WIN32))
    target_compile_options(python-samplerate PRIVATE -std=c++14 -O3 -Wall -Wextra -fPIC)
endif()

### stick the package and libsamplerate version into the module
target_compile_definitions(python-samplerate
    PUBLIC LIBSAMPLERATE_VERSION="${LIBSAMPLERATE_VERSION}"
    PRIVATE $<$<BOOL:${PACKAGE_VERSION_INFO}>:VERSION_INFO="${PACKAGE_VERSION_INFO}">
)

### Final target setup
set_target_properties(
    python-samplerate
    PROPERTIES
        PREFIX ""
        OUTPUT_NAME "samplerate"
        LINKER_LANGUAGE C
    )

target_link_libraries(python-samplerate PUBLIC samplerate)