cmake_minimum_required(VERSION 3.5.1)

project(akantu_iterators)

# ------------------------------------------------------------------------------
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
set(BUILD_SHARED_LIBS ON)
if (NOT AKANTU_ITERATORS_PYTHON_MAJOR_VERSION)
  set(AKANTU_ITERATORS_PYTHON_MAJOR_VERSION 3)
endif()
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${PROJECT_SOURCE_DIR}/cmake)

include(AkantuIteratorsTools)
# ------------------------------------------------------------------------------

set(AKANTU_ITERATORS_PUBLIC_HDRS
  include/aka_compatibilty_with_cpp_standard.hh
  include/aka_iterators.hh
  include/aka_static_if.hh
  include/aka_tuple_tools.hh
  include/aka_str_hash.hh
  include/iterators/aka_arange_iterator.hh
  include/iterators/aka_enumerate_iterator.hh
  include/iterators/aka_filter_iterator.hh
  include/iterators/aka_transform_iterator.hh
  include/iterators/aka_zip_iterator.hh
  )

add_library(akantu_iterators INTERFACE)

target_include_directories(akantu_iterators
  INTERFACE $<INSTALL_INTERFACE:include/${PROJECT_NAME}>
  )

# small trick for build includes in public
set_property(TARGET akantu_iterators APPEND PROPERTY
  INTERFACE_INCLUDE_DIRECTORIES $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>)

set_target_properties(akantu_iterators
  PROPERTIES
  INTERFACE_CXX_STANDARD 17
  )

# ------------------------------------------------------------------------------
option(AKANTU_ITERATORS_TESTS "Activating tests" OFF)
mark_as_advanced(AKANTU_ITERATORS_TESTS)
if(AKANTU_ITERATORS_TESTS)
  enable_testing()
  add_external_package(GTest)
  add_subdirectory(test)
endif()

# ------------------------------------------------------------------------------
if(NOT AKANTU_ITERATORS_TARGETS_EXPORT)
  set(AKANTU_ITERATORS_TARGETS_EXPORT AkantuIteratorsTargets)
endif()

include(GNUInstallDirs)
install(TARGETS akantu_iterators
  EXPORT ${AKANTU_ITERATORS_TARGETS_EXPORT}
  )

install(DIRECTORY include/ DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME})

if("${AKANTU_ITERATORS_TARGETS_EXPORT}" STREQUAL "AkantuIteratorsTargets")
  install(EXPORT AkantuIteratorsTargets
    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME})

  #Export for build tree
  export(EXPORT AkantuIteratorsTargets
    FILE "${CMAKE_CURRENT_BINARY_DIR}/AkantuIteratorsTargets.cmake")
  export(PACKAGE AkantuIterators)
endif()