{ stdenv
, lib
, fetchFromGitHub
, blas
, boost
, cmake
, gfortran
, lapack
, mpi
, suitesparse
, swig
, withMPI ? false
}:

# NOTE: Not all packages are enabled.  We specifically enable the ones
# required to build Xyce. If the need comes, we can enable more of them.

let
  flagsBase = ''
    -G "Unix Makefiles"
    -DBUILD_SHARED_LIBS=ON
    -DCMAKE_CXX_FLAGS="-O3 -fPIC"
    -DCMAKE_C_FLAGS="-O3 -fPIC"
    -DCMAKE_Fortran_FLAGS="-O3 -fPIC"
    -DTrilinos_ENABLE_NOX=ON
    -DNOX_ENABLE_LOCA=ON
    -DTrilinos_ENABLE_EpetraExt=ON
    -DEpetraExt_BUILD_BTF=ON
    -DEpetraExt_BUILD_EXPERIMENTAL=ON
    -DEpetraExt_BUILD_GRAPH_REORDERINGS=ON
    -DTrilinos_ENABLE_TrilinosCouplings=ON
    -DTrilinos_ENABLE_Ifpack=ON
    -DTrilinos_ENABLE_AztecOO=ON
    -DTrilinos_ENABLE_Belos=ON
    -DTrilinos_ENABLE_Teuchos=ON
    -DTeuchos_ENABLE_COMPLEX=ON
    -DTrilinos_ENABLE_Amesos=ON
    -DAmesos_ENABLE_KLU=ON
    -DTrilinos_ENABLE_Amesos2=ON
    -DAmesos2_ENABLE_KLU2=ON
    -DAmesos2_ENABLE_Basker=ON
    -DTrilinos_ENABLE_Sacado=ON
    -DTrilinos_ENABLE_Stokhos=ON
    -DTrilinos_ENABLE_Kokkos=ON
    -DTrilinos_ENABLE_ALL_OPTIONAL_PACKAGES=OFF
    -DTrilinos_ENABLE_CXX11=ON
    -DTPL_ENABLE_AMD=ON
    -DTPL_ENABLE_BLAS=ON
    -DTPL_ENABLE_LAPACK=ON
  '';
  flagsParallel = ''
    -DCMAKE_C_COMPILER=mpicc
    -DCMAKE_CXX_COMPILER=mpic++
    -DCMAKE_Fortran_COMPILER=mpif77
    -DTrilinos_ENABLE_Isorropia=ON
    -DTrilinos_ENABLE_Zoltan=ON
    -DTPL_ENABLE_MPI=ON
  '';
in
stdenv.mkDerivation rec {
  pname = "trilinos";
  # Xyce 7.4 requires version 12.12.1
  # nixpkgs-update: no auto update
  version = "12.12.1";

  src = fetchFromGitHub {
    owner = "trilinos";
    repo = "Trilinos";
    rev = "${pname}-release-${lib.replaceStrings [ "." ] [ "-" ] version}";
    sha256 = "sha256-Nqjr7RAlUHm6vs87a1P84Y7BIZEL0Vs/A1Z6dykfv+o=";
  };

  nativeBuildInputs = [ cmake gfortran swig ];

  buildInputs = [ blas boost lapack suitesparse ] ++ lib.optionals withMPI [ mpi ];

  preConfigure =
    if withMPI then ''
      cmakeFlagsArray+=(${flagsBase} ${flagsParallel})
    ''
    else ''
      cmakeFlagsArray+=(${flagsBase})
    '';

  passthru = {
    inherit withMPI;
  };

  meta = with lib; {
    description = "Engineering and scientific problems algorithms";
    longDescription = ''
      The Trilinos Project is an effort to develop algorithms and enabling
      technologies within an object-oriented software framework for the
      solution of large-scale, complex multi-physics engineering and scientific
      problems.
    '';
    homepage = "https://trilinos.org";
    license = licenses.bsd3;
    maintainers = with maintainers; [ fbeffa ];
    platforms = platforms.all;
  };
}