cmake_minimum_required(VERSION 3.10)
include(ExternalProject)

if (DEFINED CIMEROOT)
  message("Using CIME in ${CIMEROOT} with compiler ${COMPILER}")
  include(${CASEROOT}/Macros.cmake)
  if (${PIO_VERSION} LESS 2)
    message( FATAL_ERROR "Version 2 of the PIO library required")
  endif()
  if (${MPILIB} STREQUAL "mpi-serial")
    set(CMAKE_C_COMPILER ${SCC})
    set(CMAKE_Fortran_COMPILER ${SFC})
    set(CMAKE_CXX_COMPILER ${SCXX})
  else()
    set(CMAKE_C_COMPILER ${MPICC})
    set(CMAKE_Fortran_COMPILER ${MPIFC})
    set(CMAKE_CXX_COMPILER ${MPICXX})
  endif()
  set(CMAKE_Fortran_FLAGS "${FFLAGS} -I${LIBROOT}/include -I${LIBROOT}/finclude -I${LIBROOT}/nuopc/esmf/${NINST_VALUE}/include")
else()
  set(BLD_STANDALONE TRUE)
endif()

project(CMEPS LANGUAGES Fortran VERSION 0.1)

list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)

message("CMAKE_MODULE_PATH is ${CMAKE_MODULE_PATH}")

find_package(ESMF REQUIRED)
if (DEFINED PIO)
  set(PIO_PATH ${PIO})
else()
  set(PIO_PATH $ENV{PIO})
endif()
find_package(PIO REQUIRED COMPONENT C Fortran PATH ${PIO_PATH})

if (NOT DEFINED MPILIB OR NOT ${MPILIB} STREQUAL "mpi-serial")
  find_package(MPI REQUIRED)
endif()

if(BLD_STANDALONE)
  add_subdirectory(ufs)
  list(APPEND EXTRA_LIBS cmeps_share)
  list(APPEND EXTRA_INCLUDES "${CMAKE_BINARY_DIR}/ufs")
endif()

add_subdirectory(mediator)