cmake_minimum_required(VERSION 4.0)

set(CMAKE_C_COMPILER clang)
set(CMAKE_CXX_COMPILER clang++)
set(CMAKE_CXX_STANDARD 23)

project(slopefit)

add_compile_options(-Wall -Werror -Wpedantic)

find_package(Eigen3 REQUIRED)

find_package(Python 3.13 COMPONENTS Interpreter Development.Module REQUIRED)

execute_process(
  COMMAND "${Python_EXECUTABLE}" -m nanobind --cmake_dir
  OUTPUT_STRIP_TRAILING_WHITESPACE OUTPUT_VARIABLE nanobind_ROOT)
find_package(nanobind CONFIG REQUIRED)

file(GLOB_RECURSE SOURCES lib/*.cpp)

add_library(autoopt STATIC ${SOURCES})
target_include_directories(autoopt PUBLIC include)
target_link_libraries(autoopt PUBLIC Eigen3::Eigen)
target_link_libraries(autoopt PRIVATE fftw3)

nanobind_add_module(slopefit NOMINSIZE src/module.cpp)
nanobind_add_stub(
    slopefit_stub
    MODULE slopefit
    OUTPUT slopefit.pyi
    PYTHON_PATH $<TARGET_FILE_DIR:slopefit>
    DEPENDS slopefit
)

target_link_libraries(slopefit PRIVATE autoopt)
install(TARGETS slopefit DESTINATION .)
install(FILES $<TARGET_FILE_DIR:slopefit>/slopefit.pyi DESTINATION .)

# add tests if gtest is found
enable_testing()
add_subdirectory(tests)

find_library(GTestPackage gtest QUIET)
if(GTestPackage)

endif()