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# Copyright 2013-2022 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)


from spack.package import *


class Openmc(CMakePackage):
    """OpenMC is a community-developed Monte Carlo neutron and photon transport
    simulation code. It is capable of performing fixed source, k-eigenvalue, and
    subcritical multiplication calculations on models built using either a
    constructive solid geometry or CAD representation. OpenMC supports both
    continuous-energy and multigroup transport. The continuous-energy particle
    interaction data is based on a native HDF5 format that can be generated from ACE
    files produced by NJOY. Parallelism is enabled via a hybrid MPI and OpenMP
    programming model."""

    homepage = "https://docs.openmc.org/"
    url = "https://github.com/openmc-dev/openmc/tarball/v0.13.0"
    git = "https://github.com/openmc-dev/openmc.git"

    version("develop", branch="develop", submodules=True)
    version("master", branch="master", submodules=True)
    version("0.13.0", commit="cff247e35785e7236d67ccf64a3401f0fc50a469", submodules=True)
    version("0.12.2", commit="cbfcf908f8abdc1ef6603f67872dcf64c5c657b1", submodules=True)
    version("0.12.1", commit="36913589c4f43b7f843332181645241f0f10ae9e", submodules=True)
    version("0.12.0", commit="93d6165ecb455fc57242cd03a3f0805089c0e0b9", submodules=True)
    version("0.11.0", sha256="19a9d8e9c3b581e9060fbd96d30f1098312d217cb5c925eb6372a5786d9175af")
    version("0.10.0", sha256="47650cb45e2c326ae439208d6f137d75ad3e5c657055912d989592c6e216178f")

    variant("mpi", default=False, description="Enable MPI support")
    variant("openmp", default=True, description="Enable OpenMP support")
    variant("optimize", default=False, description="Enable optimization flags")
    variant("debug", default=False, description="Enable debug flags")

    depends_on("git", type="build")
    depends_on("hdf5+hl~mpi", when="~mpi")
    depends_on("mpi", when="+mpi")
    depends_on("hdf5+hl+mpi", when="+mpi")

    def cmake_args(self):
        options = ["-DCMAKE_INSTALL_LIBDIR=lib"]  # forcing bc sometimes goes to lib64

        if "+mpi" in self.spec:
            options += [
                "-DCMAKE_C_COMPILER=%s" % self.spec["mpi"].mpicc,
                "-DCMAKE_CXX_COMPILER=%s" % self.spec["mpi"].mpicxx,
            ]

        options += [self.define_from_variant("openmp")]
        options += [self.define_from_variant("optimize")]
        options += [self.define_from_variant("debug")]

        if "+optimize" in self.spec:
            self.spec.variants["build_type"].value = "Release"

        if "+debug" in self.spec:
            self.spec.variants["build_type"].value = "Debug"

        return options