# Draco - a library for a lossy vertex data compression, used as extension to glTF format.
# https://github.com/google/draco

OCCT_INCLUDE_CMAKE_FILE ("adm/cmake/occt_macros")

if (NOT DEFINED INSTALL_DRACO)
  set (INSTALL_DRACO OFF CACHE BOOL "${INSTALL_DRACO_DESCR}")
endif()

if (NOT DEFINED 3RDPARTY_DRACO_DIR)
  set (3RDPARTY_DRACO_DIR "" CACHE PATH "The directory containing Draco")
endif()

if (NOT DEFINED 3RDPARTY_DRACO_INCLUDE_DIR)
  set (3RDPARTY_DRACO_INCLUDE_DIR  "" CACHE PATH "The directory containing headers of the Draco")
endif()

if (NOT DEFINED 3RDPARTY_DRACO_LIBRARY OR NOT 3RDPARTY_DRACO_LIBRARY_DIR OR NOT EXISTS "${3RDPARTY_DRACO_LIBRARY_DIR}")
  set (3RDPARTY_DRACO_LIBRARY "" CACHE FILEPATH "Draco library"  FORCE)
endif()

if (NOT DEFINED 3RDPARTY_DRACO_LIBRARY_DIR)
  set (3RDPARTY_DRACO_LIBRARY_DIR "" CACHE PATH "The directory containing Draco library")
endif()

if (3RDPARTY_DIR AND EXISTS "${3RDPARTY_DIR}")
  if (NOT 3RDPARTY_DRACO_DIR OR NOT EXISTS "${3RDPARTY_DRACO_DIR}")
    FIND_PRODUCT_DIR("${3RDPARTY_DIR}" draco DRACO_DIR_NAME)
    if (DRACO_DIR_NAME)
      set (3RDPARTY_DRACO_DIR "${3RDPARTY_DIR}/${DRACO_DIR_NAME}" CACHE PATH "The directory containing Draco" FORCE)
    endif()
  endif()
endif()

if (3RDPARTY_DRACO_DIR AND EXISTS "${3RDPARTY_DRACO_DIR}")
  set (DRACO_INCLUDE_PATH "${3RDPARTY_DRACO_DIR}/include")
  set (DRACO_LIBRARY_PATH "${3RDPARTY_DRACO_DIR}/lib")
endif()

if (NOT 3RDPARTY_DRACO_INCLUDE_DIR)
  if (DRACO_INCLUDE_PATH AND EXISTS "${DRACO_INCLUDE_PATH}")
    set (3RDPARTY_DRACO_INCLUDE_DIR "${DRACO_INCLUDE_PATH}" CACHE FILEPATH "The directory containing headers of DRACO" FORCE)
  endif()
endif()

if (NOT 3RDPARTY_DRACO_LIBRARY_DIR)
  if (DRACO_LIBRARY_PATH AND EXISTS "${DRACO_LIBRARY_PATH}")
    set (3RDPARTY_DRACO_LIBRARY_DIR "${DRACO_LIBRARY_PATH}" CACHE FILEPATH "The directory containing DRACO library" FORCE)
  endif()
endif()

if (3RDPARTY_DRACO_INCLUDE_DIR AND EXISTS "${3RDPARTY_DRACO_INCLUDE_DIR}")
  list (APPEND 3RDPARTY_INCLUDE_DIRS "${3RDPARTY_DRACO_INCLUDE_DIR}")
else()
  list (APPEND 3RDPARTY_NOT_INCLUDED 3RDPARTY_DRACO_INCLUDE_DIR)
endif()

if (3RDPARTY_DRACO_DIR AND EXISTS "${3RDPARTY_DRACO_DIR}")
  if (NOT 3RDPARTY_DRACO_LIBRARY OR NOT EXISTS "${3RDPARTY_DRACO_LIBRARY}")
    set (CMAKE_FIND_LIBRARY_SUFFIXES .lib .so .dylib .a)
    set (3RDPARTY_DRACO_LIBRARY "3RDPARTY_DRACO_LIBRARY-NOTFOUND" CACHE FILEPATH "The path to Draco library" FORCE)

    find_library (3RDPARTY_DRACO_LIBRARY NAMES ${CSF_Draco}
                                         PATHS "${3RDPARTY_DRACO_LIBRARY_DIR}"
                                         PATH_SUFFIXES lib
                                         CMAKE_FIND_ROOT_PATH_BOTH
                                         NO_DEFAULT_PATH)
    if (3RDPARTY_DRACO_LIBRARY AND EXISTS "${3RDPARTY_DRACO_LIBRARY}")
      get_filename_component (3RDPARTY_DRACO_LIBRARY_DIR "${3RDPARTY_DRACO_LIBRARY}" PATH)
      set (3RDPARTY_DRACO_LIBRARY_DIR "${3RDPARTY_DRACO_LIBRARY_DIR}" CACHE FILEPATH "The directory containing Draco library" FORCE)
    endif()
  endif()
endif()

if (3RDPARTY_DRACO_LIBRARY_DIR AND EXISTS "${3RDPARTY_DRACO_LIBRARY_DIR}")
  list (APPEND 3RDPARTY_LIBRARY_DIRS "${3RDPARTY_DRACO_LIBRARY_DIR}")
else()
  list (APPEND 3RDPARTY_NO_LIBS 3RDPARTY_DRACO_LIBRARY_DIR)
endif()

if (INSTALL_DRACO)
  get_filename_component(3RDPARTY_DRACO_LIBRARY_REALPATH ${3RDPARTY_DRACO_LIBRARY} REALPATH)
  if (SINGLE_GENERATOR)
    install (FILES ${3RDPARTY_DRACO_LIBRARY_REALPATH} DESTINATION "${INSTALL_DIR_LIB}")
  else()
    install (FILES ${3RDPARTY_DRACO_LIBRARY_REALPATH}
             CONFIGURATIONS Release
             DESTINATION "${INSTALL_DIR_LIB}")
    install (FILES ${3RDPARTY_DRACO_LIBRARY_REALPATH}
             CONFIGURATIONS RelWithDebInfo
             DESTINATION "${INSTALL_DIR_LIB}i")
    install (FILES ${3RDPARTY_DRACO_LIBRARY_REALPATH}
             CONFIGURATIONS Debug
             DESTINATION "${INSTALL_DIR_LIB}d")
  endif()
endif()