# 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 *
import six


def is_string(x):
    """validate a string"""
    try:
        return isinstance(x, six.string_types)
    except ValueError:
        return False


class Dataspaces(AutotoolsPackage):
    """an extreme scale data management framework."""

    homepage = "http://www.dataspaces.org"
    url      = "http://personal.cac.rutgers.edu/TASSL/projects/data/downloads/dataspaces-1.6.2.tar.gz"
    git      = "https://github.com/melrom/dataspaces.git"

    version('develop', branch='master')
    version('1.6.2', '73caa4920b6f2c0c6d6cb87640ff04be')

    variant('dimes',
        default=False,
        description='enabled DIMES transport mode')
    variant('cray-drc',
        default=False,
        description='using Cray Dynamic Credentials library')
    variant('gni-cookie',
        default='0x5420000',
        description='Cray UGNI communication token',
        values=is_string)
    variant('ptag',
        default='250',
        description='Cray UGNI protection tag',
        values=is_string)
    variant('mpi',
        default=True,
        description='Use MPI for collective communication')

    depends_on('m4', type='build')
    depends_on('automake', type='build')
    depends_on('autoconf', type='build')
    depends_on('libtool', type='build')
    depends_on('mpi', when='+mpi')

    def autoreconf(self, spec, prefix):
        bash = which('bash')
        bash('./autogen.sh')

    def configure_args(self):
        args = []
        cookie = self.spec.variants['gni-cookie'].value
        ptag = self.spec.variants['ptag'].value
        if self.spec.satisfies('+dimes'):
            args.append('--enable-dimes')
        if self.spec.satisfies('+cray-drc'):
            args.append('--enable-drc')
        else:
            args.append('--with-gni-cookie=%s' % cookie)
            args.append('--with-gni-ptag=%s' % ptag)
        if self.spec.satisfies('+mpi'):
            args.append('CC=%s' % self.spec['mpi'].mpicc)
            args.append('FC=%s' % self.spec['mpi'].mpifc)
        return args
