cmake_minimum_required(VERSION 3.9)
set(NAME "cudaCAC")
project(${NAME} LANGUAGES CUDA CXX)

enable_testing()
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

# Default settings 
add_compile_options(-Wall -Wextra -Wpedantic)

add_compile_options($<$<COMPILE_LANGUAGE:CUDA>:-Wno-pedantic>)

# Add pedantic just for 

set(CMAKE_CXX_STANDARD 17)

# Cuda Settings
set(CMAKE_CUDA_ARCHITECTURES 61)
set(CUDA_SEPARABLE_COMPILATION ON)
# Cuda settings to get correct compile_commands.json
set(CMAKE_CUDA_USE_RESPONSE_FILE_FOR_INCLUDES 0)
set(CMAKE_CUDA_USE_RESPONSE_FILE_FOR_LIBRARIES 0)
set(CMAKE_CUDA_USE_RESPONSE_FILE_FOR_OBJECTS 0)

# Add Vec3  as a dependency
include(FetchContent)
FetchContent_Declare(Vec3
    GIT_REPOSITORY https://www.alexselimov.com/git/aselimov/Vec3.git
)

FetchContent_GetProperties(Vec3)
if(NOT Vec3_POPULATED)
    FetchContent_MakeAvailable(Vec3)
    include_directories(${Vec3_SOURCE_DIR})
endif()

include_directories(/usr/local/cuda-12.8/include)
include_directories(src)
include_directories(kernels)

add_subdirectory(src)
add_subdirectory(kernels)
add_subdirectory(tests)

add_executable(${NAME} main.cpp)
install(DIRECTORY src/ DESTINATION src/)

target_link_libraries(
    ${NAME} 
    PRIVATE
    ${NAME}_lib 
    ${NAME}_cuda_lib 
    ${CUDA_LIBRARIES}
)

# Doxygen Build
option(BUILD_DOC "Build Documentation" OFF)

find_package(Doxygen)
if(DOXYGEN_FOUND AND BUILD_DOC)
    set(BUILD_DOC_DIR ${CMAKE_SOURCE_DIR}/build/docs)
    if(NOT EXISTS ${BUILD_DOC_DIR})
        file(MAKE_DIRECTORY ${BUILD_DOC_DIR})
    endif()

    set(DOXYGEN_IN ${CMAKE_CURRENT_SOURCE_DIR}/docs/Doxyfile)
    set(DOXYGEN_OUT ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile)
    configure_file(${DOXYGEN_IN} ${DOXYGEN_OUT} @ONLY)

    message("Doxygen buld started")
    add_custom_target(Doxygen ALL
            COMMAND ${DOXYGEN_EXECUTABLE} ${DOXYGEN_OUT}
            WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
            COMMENT "Generating API documentation with Doxygen"
            VERBATIM)
else(DOXYGEN_FOUND AND BUILD_DOC)
    message("Doxygen needs to be installed to generate the documentation.")
endif(DOXYGEN_FOUND AND BUILD_DOC)