# Copyright 2013-2021 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 import *


class Quicksilver(MakefilePackage):
    """Quicksilver is a proxy application that represents some elements of the
       Mercury workload.
    """

    tags = ['proxy-app']

    homepage = "https://codesign.llnl.gov/quicksilver.php"
    url      = "https://github.com/LLNL/Quicksilver/tarball/V1.0"
    git      = "https://github.com/LLNL/Quicksilver.git"

    maintainers = ['richards12']

    version('master', branch='master')
    version('1.0', sha256='83371603b169ec75e41fb358881b7bd498e83597cd251ff9e5c35769ef22c59a')

    variant('openmp', default=True, description='Build with OpenMP support')
    variant('mpi', default=True, description='Build with MPI support')

    depends_on('mpi', when="+mpi")

    build_directory = 'src'

    @property
    def build_targets(self):
        targets = []
        spec = self.spec

        targets.append('CXXFLAGS={0}'.format(self.compiler.cxx11_flag))

        if '+mpi' in spec:
            targets.append('CXX={0}'.format(spec['mpi'].mpicxx))
        else:
            targets.append('CXX={0}'.format(spack_cxx))

        if '+openmp+mpi' in spec:
            targets.append('CPPFLAGS=-DHAVE_MPI -DHAVE_OPENMP {0}'.format(
                self.compiler.openmp_flag))
        elif '+openmp' in spec:
            targets.append('CPPFLAGS=-DHAVE_OPENMP {0}'.format(
                self.compiler.openmp_flag))
        elif '+mpi' in spec:
            targets.append('CPPFLAGS=-DHAVE_MPI')

        if '+openmp' in self.spec:
            targets.append('LDFLAGS={0}'.format(self.compiler.openmp_flag))

        return targets

    def install(self, spec, prefix):
        mkdir(prefix.bin)
        mkdir(prefix.doc)
        install("src/qs", prefix.bin)
        install('LICENSE.md', prefix.doc)
        install('README.md', prefix.doc)
        install_tree('Examples', prefix.Examples)
