# refcnt/CMakeLists.txt

cmake_minimum_required(VERSION 3.10)

project(refcnt VERSION 0.1)
enable_language(CXX)

include(cmake/cxx.cmake)
include(cmake/code-coverage.cmake)

# ----------------------------------------------------------------
# unit test setup

enable_testing()

# activate code coverage for all executables + libraries (when configured with -DCODE_COVERAGE=ON)
add_code_coverage()
# 1. assuming that /nix/store/ prefixes .hpp files belonging to gcc, catch2 etc.
#    we're not interested in code coverage for these sources.
# 2. exclude the utest/ subdir, we don't need coverage on the unit tests themselves;
#    rather,  want coverage on the code that the unit tests exercise.
#
add_code_coverage_all_targets(EXCLUDE /nix/store/* utest/*)

# ----------------------------------------------------------------
# c++ settings

set(XO_PROJECT_NAME refcnt)
set(PROJECT_CXX_FLAGS "-fconcepts-diagnostics-depth=2")

add_definitions(${PROJECT_CXX_FLAGS})

if(NOT CMAKE_CXX_STANDARD)
    set(CMAKE_CXX_STANDARD 20)
endif()

set(CMAKE_CXX_STANDARD_REQUIRED True)

# always write compile_commands.json
set(CMAKE_EXPORT_COMPILE_COMMANDS ON CACHE INTERNAL "")

# ----------------------------------------------------------------
# sources

add_subdirectory(src)
add_subdirectory(utest)

# ----------------------------------------------------------------
# cmake export

set(XO_PROJECT_CONFIG_VERSION "${XO_PROJECT_NAME}ConfigVersion.cmake")
set(XO_PROJECT_CONFIG "${XO_PROJECT_NAME}Config.cmake")

include(CMakePackageConfigHelpers)
write_basic_package_version_file("${PROJECT_BINARY_DIR}/${XO_PROJECT_CONFIG_VERSION}"
    VERSION 0.1
    COMPATIBILITY AnyNewerVersion
)

#install(
#    TARGETS ${XO_PROJECT_NAME}
#    EXPORT ${XO_PROJECT_NAME}Targets
#    LIBRARY DESTINATION lib COMPONENT Runtime
#    ARCHIVE DESTINATION lib COMPONENT Development
#    RUNTIME DESTINATION bin COMPONENT Runtime
#    PUBLIC_HEADER DESTINATION include COMPONENT Development
#    BUNDLE DESTINATION bin COMPONENT Runtime
#    )

configure_package_config_file(
    "${PROJECT_SOURCE_DIR}/cmake/${XO_PROJECT_NAME}Config.cmake.in"
    "${PROJECT_BINARY_DIR}/${XO_PROJECT_CONFIG}"
    INSTALL_DESTINATION lib/cmake/${XO_PROJECT_NAME}
    )

install(EXPORT ${XO_PROJECT_NAME}Targets DESTINATION lib/cmake/${XO_PROJECT_NAME})
install(
    FILES
    "${PROJECT_BINARY_DIR}/${XO_PROJECT_CONFIG_VERSION}"
    "${PROJECT_BINARY_DIR}/${XO_PROJECT_CONFIG}"
    DESTINATION lib/cmake/${XO_PROJECT_NAME})

# ----------------------------------------------------------------
# install .hpp

install(DIRECTORY ${PROJECT_SOURCE_DIR}/include/ DESTINATION include)

# end CMakeLists.txt