# 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 Meep(AutotoolsPackage):
    """Meep (or MEEP) is a free finite-difference time-domain (FDTD) simulation
    software package developed at MIT to model electromagnetic systems."""

    homepage = "http://ab-initio.mit.edu/wiki/index.php/Meep"
    url      = "http://ab-initio.mit.edu/meep/meep-1.3.tar.gz"
    list_url = "http://ab-initio.mit.edu/meep/old"

    version('1.3',   '18a5b9e18008627a0411087e0bb60db5')
    version('1.2.1', '9be2e743c3a832ae922de9d955d016c5')
    version('1.1.1', '415e0cd312b6caa22b5dd612490e1ccf')

    variant('blas',    default=True, description='Enable BLAS support')
    variant('lapack',  default=True, description='Enable LAPACK support')
    variant('harminv', default=True, description='Enable Harminv support')
    variant('guile',   default=True, description='Enable Guilde support')
    variant('libctl',  default=True, description='Enable libctl support')
    variant('mpi',     default=True, description='Enable MPI support')
    variant('hdf5',    default=True, description='Enable HDF5 support')
    variant('gsl',     default=True, description='Enable GSL support')

    depends_on('blas',        when='+blas')
    depends_on('lapack',      when='+lapack')
    depends_on('harminv',     when='+harminv')
    depends_on('guile',       when='+guile')
    depends_on('libctl@3.2:', when='+libctl')
    depends_on('mpi',         when='+mpi')
    depends_on('hdf5~mpi',    when='+hdf5~mpi')
    depends_on('hdf5+mpi',    when='+hdf5+mpi')
    depends_on('gsl',         when='+gsl')

    def configure_args(self):
        spec = self.spec

        config_args = [
            '--enable-shared'
        ]

        if '+blas' in spec:
            config_args.append('--with-blas={0}'.format(
                spec['blas'].prefix.lib))
        else:
            config_args.append('--without-blas')

        if '+lapack' in spec:
            config_args.append('--with-lapack={0}'.format(
                spec['lapack'].prefix.lib))
        else:
            config_args.append('--without-lapack')

        if '+libctl' in spec:
            config_args.append('--with-libctl={0}'.format(
                join_path(spec['libctl'].prefix.share, 'libctl')))
        else:
            config_args.append('--without-libctl')

        if '+mpi' in spec:
            config_args.append('--with-mpi')
        else:
            config_args.append('--without-mpi')

        if '+hdf5' in spec:
            config_args.append('--with-hdf5')
        else:
            config_args.append('--without-hdf5')

        return config_args

    def check(self):
        spec = self.spec

        # aniso_disp test fails unless installed with harminv
        # near2far test fails unless installed with gsl
        if '+harminv' in spec and '+gsl' in spec:
            # Most tests fail when run in parallel
            # 2D_convergence tests still fails to converge for unknown reasons
            make('check', parallel=False)
