cmake_minimum_required (VERSION 3.1 FATAL_ERROR)
project (libtree++ VERSION 0.1.0 LANGUAGES CXX)
set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake/Modules)


#
# Set the required C++ standard
#
set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)

#
# We want to have a compile_commands.json file
#
set(CMAKE_EXPORT_COMPILE_COMMANDS 1)

#
# Module includes for compdb and doxygen
#
include(compdb)
include(doxygen)


configure_file(${PROJECT_SOURCE_DIR}/src/config.hpp.in ${PROJECT_SOURCE_DIR}/src/config.hpp @ONLY)


set(generated "${PROJECT_SOURCE_DIR}/src/config.hpp")

add_custom_target(clean-generated COMMAND rm -f ${generated})

add_library(tree STATIC
              src/config.hpp
              include/Tree/tree.hpp
              src/Tree/tree.cpp
)

target_include_directories(tree PUBLIC
  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
  $<INSTALL_INTERFACE:include>
  PRIVATE src
)


#
# Everything TEST related
#
option(TEST_TREE "Turn running of tree specific tests on/off" ON)

IF(${TEST_TREE})
  enable_testing()
  message(STATUS "Tree tests enabled")

  IF(NOT TARGET Catch2)
    add_subdirectory(libs/Catch2 EXCLUDE_FROM_ALL)
    include(libs/Catch2/extras/Catch.cmake)
  ENDIF()


  include(CTest)
ELSE()
  message(STATUS "Tree tests disabled")
ENDIF()

IF (${TEST_TREE})

add_executable(test_base tests/test_base.cpp)
target_link_libraries(test_base Catch2WithMain tree)
catch_discover_tests(test_base)


ENDIF()