# Copyright 2013-2018 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 Clamr(CMakePackage):
    """The CLAMR code is a cell-based adaptive mesh refinement (AMR)
    mini-app developed as a testbed for hybrid algorithm development
    using MPI and OpenCL GPU code.
    """

    homepage = "https://github.com/lanl/CLAMR"
    git      = "https://github.com/lanl/CLAMR.git"
    tags     = ['proxy-app']

    version('master')

    variant(
        'graphics', default='opengl',
        values=('opengl', 'mpe', 'none'),
        description='Build with specified graphics support')
    variant(
        'precision', default='mixed',
        values=('single', 'mixed', 'full'),
        description='single, mixed, or full double precision values')

    depends_on('cmake@3.1:')
    depends_on('mpi')
    depends_on('mpe', when='graphics=mpe')

    def cmake_args(self):
        spec = self.spec
        cmake_args = []
        if 'graphics=none' in spec:
            cmake_args.append('-DGRAPHICS_TYPE=None')
        elif 'graphics=mpe' in spec:
            cmake_args.append('-DGRAPHICS_TYPE=MPE')
        else:
            cmake_args.append('-DGRAPHICS_TYPE=OpenGL')

        if 'precision=full' in spec:
            cmake_args.append('-DPRECISION_TYPE=full_precision')
        elif 'precision=single' in spec:
            cmake_args.append('-DPRECISION_TYPE=minimum_precision')
        else:
            cmake_args.append('-DPRECISION_TYPE=mixed_precision')

        # if MIC, then -DMIC_NATIVE=yes
        return cmake_args

    def install(self, spec, prefix):
        install('README', prefix)
        install('LICENSE', prefix)
        install_tree('docs', join_path(prefix, 'docs'))
        install_tree('tests', join_path(prefix, 'tests'))
        with working_dir(self.build_directory):
            make('install')
