# The name of our project is "GNURBS". CMakeLists files in this project can
# refer to the root source directory of the project as ${HELLO_SOURCE_DIR} and
# to the root binary directory of the project as ${HELLO_BINARY_DIR}.
cmake_minimum_required (VERSION 3.10 FATAL_ERROR)

if(DEFINED CMAKE_BUILD_TYPE)
  set(CMAKE_BUILD_TYPE ${CMAKE_BUILD_TYPE} CACHE STRING "Choose build type")
else(DEFINED CMAKE_BUILD_TYPE)
  set(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING "Choose build type")
endif(DEFINED CMAKE_BUILD_TYPE)

project(GNURBS)
option(GNURBS_ENABLE_TEST "Enable Testing-related binary targets" ON)
option(GNURBS_ENABLE_VTK_INTERFACE  "Enable VTK integration targets" ON)
option(GNURBS_ENABLE_LESSONS "Enable Lessons-related binary targets" OFF)
option(GNURBS_ENABLE_CLOTHOID "Enable Clothoids" OFF)

IF(NOT TARGET nutil-dynamic AND NOT TARGET nutil-static AND NOT INSIDE_CADXFEM_TREE)
add_subdirectory(nutil)
endif()

include_directories(. ${GNURBS_BINARY_DIR} ${NUTIL_INCLUDE_DIRECTORIES} ${NUTIL_EXTERNAL_INCLUDES})

set(GNURBS_EXTERNAL_INCLUDES ${NUTIL_EXTERNAL_INCLUDES} ${NUTIL_INCLUDE_DIRECTORIES} CACHE
    STRING "Gnurbs External include directories" FORCE)
set(GNURBS_EXTERNAL_LIBRARY_DIRS ${NUTIL_EXTERNAL_LIBRARY_DIRS} ${CMAKE_CURRENT_BINARY_DIR}/nutil CACHE
    STRING "Gnurbs External library dirs" FORCE)
set(GNURBS_EXTERNAL_STATIC_LIBRARIES ${NUTIL_EXTERNAL_LIBRARIES} ${NUTIL_STATIC_LIBRARIES} CACHE
    STRING "Gnurbs External libraries dirs" FORCE)
set(GNURBS_EXTERNAL_DYNAMIC_LIBRARIES ${NUTIL_EXTERNAL_LIBRARIES} ${NUTIL_DYNAMIC_LIBRARIES} CACHE
    STRING "Gnurbs External libraries dirs" FORCE)



if(GNURBS_ENABLE_CLOTHOID)
add_subdirectory(clothoid)
include_directories(. ${GNURBS_BINARY_DIR} ${NUTIL_INCLUDE_DIRECTORIES} ${NUTIL_EXTERNAL_INCLUDES} clothoid/src)
SET(ENABLE_CLOTHOID ON)
endif(GNURBS_ENABLE_CLOTHOID)

configure_file(gnurbsconfig.h.in gnurbsconfig.h)

add_subdirectory(api)
include_directories (${GNURBS_SOURCE_DIR}/api)
link_directories (${GNURBS_BINARY_DIR}/api)


if(GNURBS_ENABLE_VTK_INTERFACE AND HAS_VTK_INTERFACE)

# Find VTK
find_package(VTK REQUIRED)
if(NOT VTK_DIR)
message(FATAL_ERROR "Please set VTK_DIR.")
endif(NOT VTK_DIR)
include(${VTK_USE_FILE})
include_directories (${GNURBS_SOURCE_DIR}/vtk ${NUTIL_INCLUDE_DIRECTORIES} ${NUTIL_EXTERNAL_INCLUDES})
link_directories (${GNURBS_BINARY_DIR}/vtk ${NUTIL_EXTERNAL_LIBRARY_DIRS})
add_subdirectory(vtk)
endif(GNURBS_ENABLE_VTK_INTERFACE AND HAS_VTK_INTERFACE)

if(GNURBS_ENABLE_FLTK_INTERFACE AND HAS_FLTK_INTERFACE)
include_directories (${GNURBS_SOURCE_DIR}/fltk ${NUTIL_INCLUDE_DIRECTORIES} ${NUTIL_EXTERNAL_INCLUDES})
link_directories (${GNURBS_BINARY_DIR}/fltk ${NUTIL_EXTERNAL_LIBRARY_DIRS})
add_subdirectory(fltk)
endif(GNURBS_ENABLE_FLTK_INTERFACE AND HAS_FLTK_INTERFACE)

add_subdirectory(test)