#===============================================================================
# @file   mumps.cmake
#
# @author Nicolas Richart <nicolas.richart@epfl.ch>
#
# @date creation: Mon Nov 21 2011
# @date last modification: Wed Dec 18 2019
#
# @brief  package description for mumps support
#
#
# @section LICENSE
#
# Copyright (©) 2010-2021 EPFL (Ecole Polytechnique Fédérale de Lausanne)
# Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
#
# Akantu is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option) any
# later version.
# 
# Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
# 
# You should have received a copy of the GNU Lesser General Public License along
# with Akantu. If not, see <http://www.gnu.org/licenses/>.
#
#===============================================================================


package_declare(Mumps EXTERNAL
  DESCRIPTION "Add Mumps support in akantu"
  SYSTEM ON
  )

package_declare_sources(Mumps
  model/common/non_linear_solver/non_linear_solver_linear.cc
  model/common/non_linear_solver/non_linear_solver_linear.hh
  model/common/non_linear_solver/non_linear_solver_newton_raphson.cc
  model/common/non_linear_solver/non_linear_solver_newton_raphson.hh
  solver/sparse_solver_mumps.cc
  solver/sparse_solver_mumps.hh
  )

set(_mumps_float_type ${AKANTU_FLOAT_TYPE})

if(AKANTU_FLOAT_TYPE STREQUAL "float" OR
    AKANTU_FLOAT_TYPE STREQUAL "double")
  set(_mumps_components ${AKANTU_FLOAT_TYPE})
else()
  if(DEFINED AKANTU_FLOAT_TYPE)
    message(FATAL_ERROR "MUMPS doea not support floating point type \"${AKANTU_FLOAT_TYPE}\"")
  endif()
endif()

package_get_option_name(parallel _par_option)
if(${_par_option})
  package_set_find_package_extra_options(Mumps ARGS COMPONENTS "parallel" ${_mumps_components})
  package_add_third_party_script_variable(Mumps MUMPS_TYPE "par")

  package_set_package_system_dependency(Mumps deb libmumps)
  package_set_package_system_dependency(Mumps deb-src libmumps-dev)
else()
  package_set_find_package_extra_options(Mumps ARGS COMPONENTS "sequential" ${_mumps_components})
  package_add_third_party_script_variable(Mumps MUMPS_TYPE "seq")

  package_set_package_system_dependency(Mumps deb libmumps-seq)
  package_set_package_system_dependency(Mumps deb-src libmumps-seq-dev)
endif()

package_use_system(Mumps _use_system)
if(NOT _use_system)
  enable_language(Fortran)

  set(AKANTU_USE_MUMPS_VERSION "4.10.0" CACHE STRING "Default Mumps version to compile")
  mark_as_advanced(AKANTU_USE_MUMPS_VERSION)
  set_property(CACHE AKANTU_USE_MUMPS_VERSION PROPERTY STRINGS "4.9.2" "4.10.0" "5.0.0")

  package_get_option_name(MPI _mpi_option)
  if(${_mpi_option})
    package_add_dependencies(Mumps ScaLAPACK MPI)
  endif()

  package_add_dependencies(Mumps Scotch BLAS)
endif()

package_declare_extra_files_to_package(MUMPS
  PROJECT
    third-party/MUMPS_4.10.0_make.inc.cmake
    third-party/MUMPS_5.0.0.patch
    third-party/MUMPS_4.10.0.patch
    third-party/MUMPS_4.9.2_make.inc.cmake
    third-party/cmake/mumps.cmake
    cmake/Modules/FindMumps.cmake
  )