# 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 Dakota(CMakePackage):
    """The Dakota toolkit provides a flexible, extensible interface between
    analysis codes and iterative systems analysis methods. Dakota
    contains algorithms for:

    - optimization with gradient and non gradient-based methods;
    - uncertainty quantification with sampling, reliability, stochastic
    - expansion, and epistemic methods;
    - parameter estimation with nonlinear least squares methods;
    - sensitivity/variance analysis with design of experiments and
    - parameter study methods.

    These capabilities may be used on their own or as components within
    advanced strategies such as hybrid optimization, surrogate-based
    optimization, mixed integer nonlinear programming, or optimization
    under uncertainty.

    """

    homepage = 'https://dakota.sandia.gov/'
    url = 'https://dakota.sandia.gov/sites/default/files/distributions/public/dakota-6.3-public.src.tar.gz'

    version('6.9', 'a3993709c7b2ef94b44da4544dc06275', url='https://dakota.sandia.gov/sites/default/files/distributions/public/dakota-6.9-release-public-src.zip')
    version('6.3', '05a58d209fae604af234c894c3f73f6d')

    variant('shared', default=True,
            description='Enables the build of shared libraries')
    variant('mpi', default=True, description='Activates MPI support')

    # Generic 'lapack' provider won't work, dakota searches for
    # 'LAPACKConfig.cmake' or 'lapack-config.cmake' on the path
    depends_on('netlib-lapack')

    depends_on('blas')
    depends_on('mpi', when='+mpi')

    depends_on('python')
    depends_on('boost')
    depends_on('cmake@2.8.9:', type='build')

    def cmake_args(self):
        spec = self.spec

        args = [
            '-DBUILD_SHARED_LIBS:BOOL=%s' % (
                'ON' if '+shared' in spec else 'OFF'),
        ]

        if '+mpi' in spec:
            args.extend([
                '-DDAKOTA_HAVE_MPI:BOOL=ON',
                '-DMPI_CXX_COMPILER:STRING=%s' % join_path(spec['mpi'].mpicxx),
            ])

        return args
