# Copyright 2013-2019 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 Raja(CMakePackage):
    """RAJA Parallel Framework."""

    homepage = "http://software.llnl.gov/RAJA/"
    git      = "https://github.com/LLNL/RAJA.git"

    version('develop', branch='develop', submodules='True')
    version('master',  branch='master',  submodules='True')
    version('0.5.3', tag='v0.5.3', submodules="True")
    version('0.5.2', tag='v0.5.2', submodules="True")
    version('0.5.1', tag='v0.5.1', submodules="True")
    version('0.5.0', tag='v0.5.0', submodules="True")
    version('0.4.1', tag='v0.4.1', submodules="True")
    version('0.4.0', tag='v0.4.0', submodules="True")

    variant('cuda', default=False, description='Build with CUDA backend')
    variant('openmp', default=True, description='Build OpenMP backend')

    depends_on('cuda', when='+cuda')

    depends_on('cmake@3.3:', type='build')

    def cmake_args(self):
        spec = self.spec

        options = []

        if '+openmp' in spec:
            options.extend([
                '-DENABLE_OPENMP=On'])

        if '+cuda' in spec:
            options.extend([
                '-DENABLE_CUDA=On',
                '-DCUDA_TOOLKIT_ROOT_DIR=%s' % (spec['cuda'].prefix)])

        return options
