cmake_minimum_required(VERSION 3.27)
project(utempl
  VERSION 0.1)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
find_package(fmt REQUIRED)
find_package(Boost 1.84.0 REQUIRED)
set(CMAKE_CXX_STANDART 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CXX_EXTENSIONS NO)

cmake_policy(SET CMP0079 NEW)

include(GNUInstallDirs)
add_library(utempl INTERFACE)
target_include_directories(
  utempl
  INTERFACE $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
            $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
target_link_libraries(utempl INTERFACE fmt::fmt-header-only ${Boost_LIBRARIES})

target_compile_features(utempl INTERFACE cxx_std_20)

install(TARGETS utempl
  EXPORT utemplTargets
    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
)

include(CMakePackageConfigHelpers)
write_basic_package_version_file("utemplConfigVersion.cmake"
                                 VERSION ${PROJECT_VERSION}
                                 COMPATIBILITY SameMajorVersion)

configure_package_config_file(
  "${PROJECT_SOURCE_DIR}/cmake/utemplConfig.cmake.in"
  "${PROJECT_BINARY_DIR}/utemplConfig.cmake"
  INSTALL_DESTINATION
  ${CMAKE_INSTALL_DATAROOTDIR}/utempl/cmake)

install(EXPORT utemplTargets
        FILE utemplTargets.cmake
        NAMESPACE utempl::
        DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/utempl/cmake)

install(FILES "${PROJECT_BINARY_DIR}/utemplConfig.cmake"
              "${PROJECT_BINARY_DIR}/utemplConfigVersion.cmake"
        DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/utempl/cmake)

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



if(ENABLE_TESTS) 
  find_package(GTest REQUIRED)
  enable_testing()
  file(GLOB SOURCES tests/* tests/*/* tests/*/*/*)
  add_executable(utempl_tests ${SOURCES})
  target_link_libraries(utempl_tests GTest::gtest_main utempl)
  set_property(TARGET utempl_tests PROPERTY CXX_STANDARD 20)
  include(GoogleTest)
  gtest_discover_tests(utempl_tests)
endif()
if(ENABLE_EXAMPLES)
  file(GLOB EXAMPLES_SRC "examples/src/*.cpp")
  foreach(EXAMPLE_SRC ${EXAMPLES_SRC})
      get_filename_component(EXAMPLE_NAME ${EXAMPLE_SRC} NAME_WE)
      add_executable(${EXAMPLE_NAME} ${EXAMPLE_SRC})
      target_link_libraries(${EXAMPLE_NAME} utempl)
      set_property(TARGET ${EXAMPLE_NAME} PROPERTY CXX_STANDARD 20)
      set_target_properties(${EXAMPLE_NAME} PROPERTIES
          RUNTIME_OUTPUT_DIRECTORY "${CMAKE_SOURCE_DIR}/examples/")
endforeach()
endif()