# The name of our project is "IBREP". 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)
project(IBrep)
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)

option(IBREP_ENABLE_GNURBS_INTERFACE "Enable Gnurbs Interface" OFF)
option(IBREP_ENABLE_OCC_INTERFACE "Enable OpenCascade" OFF)
option(IBREP_ENABLE_MESH "Enable Mesh" OFF)
option(IBREP_ENABLE_GMSH_GMODEL_EXPORT "Enable Gmsh GModel" OFF)
option(IBREP_ENABLE_ANN "ANN library for IBREP" ON)

#needed for opencascade
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")

if(IBREP_ENABLE_ANN)
  find_library(ANN_LIB ann PATH_SUFFIXES lib)
  find_path(ANN_INC "ANN.h" PATH_SUFFIXES src include ANN)
  if(ANN_LIB AND ANN_INC)
    list(APPEND EXTERNAL_LIBRARIES ${ANN_LIB})
    list(APPEND EXTERNAL_INCLUDES ${ANN_INC})
    add_definitions( -DIBREP_HAS_ANN)
    message(STATUS "Found System ANN")
  else(ANN_LIB AND ANN_INC)
    message(STATUS "System ANN not found")
  endif(ANN_LIB AND ANN_INC)
endif(IBREP_ENABLE_ANN)

set (IBREP_LINK_LIBRARIES ${EXTERNAL_LIBRARIES} )

IF(IBREP_ENABLE_GNURBS_INTERFACE OR IBREP_ENABLE_MESH OR IBREP_ENABLE_OCC_INTERFACE)


IF(NOT TARGET nutil-dynamic AND NOT INSIDE_CADXFEM_TREE)
  add_subdirectory(nutil)
endif()
  include_directories(. ${NUTIL_INCLUDE_DIRECTORIES} ${NUTIL_EXTERNAL_INCLUDES})
  link_directories(${NUTIL_EXTERNAL_LIBRARY_DIRS})
  add_definitions( -DHAS_NUTIL)
  list (APPEND IBREP_LINK_LIBRARIES nutil-dynamic)
endif()

if(IBREP_ENABLE_GNURBS_INTERFACE)
IF(NOT TARGET gnurbs-dynamic AND NOT INSIDE_CADXFEM_TREE)
  add_subdirectory(gnurbs)
 endif()
 include_directories(. ${GNURBS_SOURCE_DIR}/api)
endif(IBREP_ENABLE_GNURBS_INTERFACE)

if(IBREP_ENABLE_GMSH_GMODEL_EXPORT)
add_definitions( -DIBREP_ENABLE_GMSH_GMODEL_EXPORT)
endif(IBREP_ENABLE_GMSH_GMODEL_EXPORT)

IF (NOT DEFINED Boost_FOUND)
FIND_PACKAGE(Boost)
IF (Boost_FOUND)
    INCLUDE_DIRECTORIES(${Boost_INCLUDE_DIR})
    ADD_DEFINITIONS( "-DHAS_BOOST" )
ENDIF(Boost_FOUND)
ENDIF(NOT DEFINED Boost_FOUND)

file(GLOB SRC src/*.c*) 
set(IBREP_SOURCE ${SRC})
include_directories(src ${EXTERNAL_INCLUDES})
include_directories(.)

if (IBREP_ENABLE_GMSH_GMODEL_EXPORT)
if(NOT DEFINED GMSH_PATH)
set(GMSH_PATH "./gmsh" CACHE STRING "Gmsh Path")

add_subdirectory(${GMSH_PATH} "${CMAKE_CURRENT_BINARY_DIR}/gmsh")

list(APPEND EXTERNAL_LIBRARIES -lgsl)

include_directories(${GMSH_PATH}/Common ${GMSH_PATH}/Numeric ${GMSH_PATH}/Geo ${GMSH_PATH}/Mesh
   ${GMSH_PATH}/Solver ${GMSH_PATH}/Post ${GMSH_PATH}/Plugin ${GMSH_PATH}/Graphics  ${GMSH_PATH}/contrib/DiscreteIntegration
   ${GMSH_EXTERNAL_INCLUDE_DIRS} ${CMAKE_CURRENT_BINARY_DIR}/gmsh/Common ${EXTERNAL_INCLUDES} ${GMSH_PATH}/contrib/gmm ${GMSH_PATH}/contrib/MathEx
)

endif(NOT DEFINED GMSH_PATH)

if(IBREP_ENABLE_GNURBS_INTERFACE OR IBREP_ENABLE_MESH OR IBREP_ENABLE_OCC_INTERFACE)
list (APPEND IBREP_LINK_LIBRARIES shared nutil-dynamic ${GMSH_EXTERNAL_LIBRARIES} )
else(BREP_ENABLE_GNURBS_INTERFACE OR IBREP_ENABLE_MESH OR IBREP_ENABLE_OCC_INTERFACE)
list (APPEND IBREP_LINK_LIBRARIES shared ${GMSH_EXTERNAL_LIBRARIES} ${ANN_LIB})
endif(IBREP_ENABLE_GNURBS_INTERFACE OR IBREP_ENABLE_MESH OR IBREP_ENABLE_OCC_INTERFACE)


file(GLOB SRCG gmodel/*.c*) 
set(IBREP_SOURCE ${IBREP_SOURCE} ${SRCG})
include_directories(gmodel)
add_library(ibrep-dynamic SHARED ${IBREP_SOURCE} )
add_library(ibrep-static EXCLUDE_FROM_ALL ${IBREP_SOURCE} )
SET_TARGET_PROPERTIES(ibrep-static PROPERTIES OUTPUT_NAME "ibrep")
SET_TARGET_PROPERTIES(ibrep-dynamic PROPERTIES OUTPUT_NAME "ibrep")
target_link_libraries(ibrep-dynamic ${IBREP_LINK_LIBRARIES})
target_link_libraries(ibrep-static ${IBREP_LINK_LIBRARIES})

else(IBREP_ENABLE_GMSH_GMODEL_EXPORT)

add_library(ibrep-dynamic SHARED ${IBREP_SOURCE} )
add_library(ibrep-static EXCLUDE_FROM_ALL ${IBREP_SOURCE} )
SET_TARGET_PROPERTIES(ibrep-static PROPERTIES OUTPUT_NAME "ibrep")
SET_TARGET_PROPERTIES(ibrep-dynamic PROPERTIES OUTPUT_NAME "ibrep")
target_link_libraries(ibrep-dynamic ${IBREP_LINK_LIBRARIES})
target_link_libraries(ibrep-static ${IBREP_LINK_LIBRARIES})

endif(IBREP_ENABLE_GMSH_GMODEL_EXPORT)

add_executable(ibrep2msh ${IBREP_SOURCE} gmodel/ibrep2msh.cc )
target_link_libraries(ibrep2msh ${IBREP_LINK_LIBRARIES} )

add_subdirectory(test)

if (IBREP_ENABLE_MESH)
add_subdirectory(mesh)
if(IBREP_ENABLE_GNURBS_INTERFACE)
add_subdirectory(gnurbs_interface)
if(IBREP_ENABLE_OCC_INTERFACE)
add_subdirectory(occ)
endif(IBREP_ENABLE_OCC_INTERFACE)
endif(IBREP_ENABLE_GNURBS_INTERFACE)
endif(IBREP_ENABLE_MESH)