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# Copyright 2013-2022 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 *
from spack.pkg.builtin.boost import Boost


class Vigra(CMakePackage):
    """VIGRA stands for "Vision with Generic Algorithms". It's an image
       processing and analysis library that puts its main emphasis on
       customizable algorithms and data structures"""

    homepage = "https://ukoethe.github.io/vigra/"
    git = "https://github.com/ukoethe/vigra.git"
    url = "https://github.com/ukoethe/vigra/releases/download/Version-1-11-1/vigra-1.11.1-src.tar.gz"

    version('master', branch='master')
    version('1.11.1', sha256='a5564e1083f6af6a885431c1ee718bad77d11f117198b277557f8558fa461aaf')

    variant('png', default=False, description='Include support for PNG images')
    variant('jpeg', default=False, description='Include support for JPEG images')
    variant('tiff', default=False, description='Include support for TIFF images')
    variant('exr', default=False, description='Include support for EXR images')
    variant('hdf5', default=False, description='Include support for HDF5 files')
    variant('fftw', default=False, description='Include support for Fourier Transforms')
    variant('python', default=False, description='Generate Python bindings and doc')
    variant('cxxdoc', default=False, description='Generate C++ documentation')

    depends_on('libtiff', when='+tiff')
    depends_on('libpng', when='+png')
    depends_on('jpeg', when='+jpeg')
    depends_on('hdf5', when='+hdf5')
    depends_on('fftw', when='+fftw')
    depends_on('openexr', when='+exr')
    depends_on('py-numpy', type=('build', 'run'), when='+python')
    depends_on('boost+python+numpy', when='+python')

    # TODO: replace this with an explicit list of components of Boost,
    # for instance depends_on('boost +filesystem')
    # See https://github.com/spack/spack/pull/22303 for reference
    depends_on(Boost.with_default_variants, when='+python')
    depends_on('py-sphinx', type='build', when='+python')
    depends_on('doxygen', type='build', when='+cxxdoc')
    depends_on('python', type='build', when='+cxxdoc')
    depends_on('py-nose', type=('build', 'test'), when='+python')

    extends('python', when='+python')

    def cmake_args(self):
        args = []
        spec = self.spec

        if '+tiff' in spec:
            args.extend([
                '-DTIFF_LIBRARY={0}'.format(spec['libtiff'].libs),
                '-DTIFF_INCLUDE_DIR={0}'.format(
                    spec['libtiff'].prefix.include),
            ])
        if '+hdf5' in spec:
            args.extend([
                '-DWITH_HDF5=ON',
                '-DHDF5_CORE_LIBRARY={0}'.format(
                    spec['hdf5'].libs.libraries[0]),
                '-DHDF5_INCLUDE_DIR={0}'.format(spec['hdf5'].prefix.include),
                '-DHDF5_Z_LIBRARY={0}'.format(spec['zlib'].libs.libraries[0])
            ])
        else:
            args.append('-DWITH_HDF5=OFF')
        if '+python' in spec:
            py_vers_str = spec['python'].version.up_to(2)
            py_vers_str_nodot = py_vers_str.joined
            boost_python_lib = '{0}/libboost_python{1}.so'.format(
                spec['boost'].prefix.lib, py_vers_str_nodot)
            args.extend([
                '-DBoost_DIR={0}'.format(spec['boost'].prefix),
                '-DBoost_INCLUDE_DIR={0}'.format(spec['boost'].prefix.include),
                '-DBoost_PYTHON_LIBRARY={0}'.format(boost_python_lib),
                '-DVIGRANUMPY_INSTALL_DIR={0}'.format(python_platlib)
            ])
        if '+fftw' in spec:
            args.extend([
                '-DFFTW3_LIBRARY={0}'.format(spec['fftw'].libs),
                '-DFFTW3_INCLUDE_DIR={0}'.format(spec['fftw'].prefix.include)
            ])
        if '+png' in spec:
            args.extend([
                '-DPNG_LIBRARY_RELEASE={0}'.format(spec['libpng'].libs),
                '-DPNG_INCLUDE_DIR={0}'.format(spec['libpng'].prefix.include)
            ])
        if '+exr' in spec:
            args.append('-DWITH_OPENEXR=ON')
        else:
            args.append('-DWITH_OPENEXR=OFF')
        if '+cxxdoc' in spec:
            args.append('-DDOXYGEN_EXECUTABLE={0}'.format(
                spec['doxygen'].command))
        return args