cmake_minimum_required(VERSION 3.0)

project(optional)

# Prepare "Catch" library for other executables
set(CATCH_INCLUDE_DIR ${CMAKE_SOURCE_DIR}/test)
add_library(Catch INTERFACE)
target_include_directories(Catch INTERFACE ${CATCH_INCLUDE_DIR})

# Make test executable
set(TEST_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/tests/main.cpp
                 ${CMAKE_CURRENT_SOURCE_DIR}/tests/noexcept.cpp
                 ${CMAKE_CURRENT_SOURCE_DIR}/tests/make_optional.cpp
                 ${CMAKE_CURRENT_SOURCE_DIR}/tests/in_place.cpp
                 ${CMAKE_CURRENT_SOURCE_DIR}/tests/relops.cpp
                 ${CMAKE_CURRENT_SOURCE_DIR}/tests/observers.cpp
                 ${CMAKE_CURRENT_SOURCE_DIR}/tests/extensions.cpp
                 ${CMAKE_CURRENT_SOURCE_DIR}/tests/constexpr.cpp
                 ${CMAKE_CURRENT_SOURCE_DIR}/tests/constructors.cpp
                 ${CMAKE_CURRENT_SOURCE_DIR}/tests/assignment.cpp
                 ${CMAKE_CURRENT_SOURCE_DIR}/tests/bases.cpp
                 ${CMAKE_CURRENT_SOURCE_DIR}/tests/nullopt.cpp)

add_executable(tests ${TEST_SOURCES})

add_library(optional INTERFACE)
target_sources(optional INTERFACE ${CMAKE_SOURCE_DIR}/tl/optional.hpp)
target_include_directories(optional INTERFACE ${CMAKE_SOURCE_DIR}/tl)

target_link_libraries(tests Catch optional)

set(CXXSTD 14 CACHE STRING "C++ standard to use, default C++14")
set_property(TARGET tests PROPERTY CXX_STANDARD ${CXXSTD})

find_package(standardese) # find standardese after installation

# generates a custom target that will run standardese to generate the documentation
if (standardese_FOUND)
standardese_generate(optional
                     INCLUDE_DIRECTORY tl
                     CONFIG ${CMAKE_SOURCE_DIR}/standardese.config
                     INPUT tl/optional.hpp)
endif ()