# 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 Vpfft(MakefilePackage):
    """Proxy Application. VPFFT is an implementation of a mesoscale
    micromechanical materials model. By solving the viscoplasticity
    model, VPFFT simulates the evolution of a material under deformation.
    The solution time to the viscoplasticity model, described by a set
    of partial differential equations, is significantly reduced by the
    application of Fast Fourier Transform in the VPFFT algorithm.
    """

    homepage = "http://www.exmatex.org/vpfft.html"
    git      = "https://github.com/exmatex/VPFFT.git"

    tag = ['proxy-app']

    version('develop')

    depends_on('eigen')
    depends_on('fftw')
    depends_on('mpi')

    @property
    def build_targets(self):
        targets = [
            "--file=Makefile.make",
            "EIGEN_PATH={0}".format(
                join_path(
                    self.spec['eigen'].prefix.include,
                    'eigen{0}'.format(
                        self.spec['eigen'].version.up_to(1)))),
            "FFTW_PATH={0}".format(self.spec['fftw'].prefix),
            "CC={0}".format(self.spec['mpi'].mpicxx)
        ]
        return targets

    def install(self, spec, prefix):
        mkdirp(prefix.bin)
        install('VPFFT++', prefix.bin)
        install('README.md', prefix)
        install('README.make', prefix)
        install('README-license.txt', prefix)
        install_tree('docs', prefix.docs)
