# 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)

import re

from spack import *


class Gettext(AutotoolsPackage, GNUMirrorPackage):
    """GNU internationalization (i18n) and localization (l10n) library."""

    homepage = "https://www.gnu.org/software/gettext/"
    gnu_mirror_path = "gettext/gettext-0.20.1.tar.xz"

    executables = [r'^gettext$']

    version('0.21',     sha256='d20fcbb537e02dcf1383197ba05bd0734ef7bf5db06bdb241eb69b7d16b73192')
    version('0.20.2',   sha256='b22b818e644c37f6e3d1643a1943c32c3a9bff726d601e53047d2682019ceaba')
    version('0.20.1',   sha256='53f02fbbec9e798b0faaf7c73272f83608e835c6288dd58be6c9bb54624a3800')
    version('0.19.8.1', sha256='105556dbc5c3fbbc2aa0edb46d22d055748b6f5c7cd7a8d99f8e7eb84e938be4')
    version('0.19.7',   sha256='378fa86a091cec3acdece3c961bb8d8c0689906287809a8daa79dc0c6398d934')

    # Recommended variants
    variant('curses',   default=True, description='Use libncurses')
    variant('libxml2',  default=True, description='Use libxml2')
    variant('git',      default=True, description='Enable git support')
    variant('tar',      default=True, description='Enable tar support')
    variant('bzip2',    default=True, description='Enable bzip2 support')
    variant('xz',       default=True, description='Enable xz support')

    # Optional variants
    variant('libunistring', default=False, description='Use libunistring')

    depends_on('iconv')
    # Recommended dependencies
    depends_on('ncurses',  when='+curses')
    depends_on('libxml2',  when='+libxml2')
    # Java runtime and compiler (e.g. GNU gcj or kaffe)
    # C# runtime and compiler (e.g. pnet or mono)
    depends_on('tar',      when='+tar')
    # depends_on('gzip',     when='+gzip')
    depends_on('bzip2',    when='+bzip2')
    depends_on('xz',       when='+xz', type=('build', 'link', 'run'))

    # Optional dependencies
    # depends_on('glib')  # circular dependency?
    # depends_on('libcroco@0.6.1:')
    depends_on('libunistring', when='+libunistring')
    # depends_on('cvs')

    patch('test-verify-parallel-make-check.patch', when='@:0.19.8.1')
    patch('nvhpc-builtin.patch', when='%nvhpc')
    patch('nvhpc-export-symbols.patch', when='%nvhpc')
    patch('nvhpc-long-width.patch', when='%nvhpc')

    @classmethod
    def determine_version(cls, exe):
        gettext = Executable(exe)
        output = gettext('--version', output=str, error=str)
        match = re.match(r'gettext(?: \(.+\)) ([\d.]+)', output)
        return match.group(1) if match else None

    def configure_args(self):
        spec = self.spec

        config_args = [
            '--disable-java',
            '--disable-csharp',
            '--with-libiconv-prefix={0}'.format(spec['iconv'].prefix),
            '--with-included-glib',
            '--with-included-gettext',
            '--with-included-libcroco',
            '--without-emacs',
            '--with-lispdir=%s/emacs/site-lisp/gettext' % self.prefix.share,
            '--without-cvs'
        ]

        if '+curses' in spec:
            config_args.append('--with-ncurses-prefix={0}'.format(
                spec['ncurses'].prefix))
        else:
            config_args.append('--disable-curses')

        if '+libxml2' in spec:
            config_args.append('--with-libxml2-prefix={0}'.format(
                spec['libxml2'].prefix))
        else:
            config_args.append('--with-included-libxml')

        if '+bzip2' not in spec:
            config_args.append('--without-bzip2')

        if '+xz' not in spec:
            config_args.append('--without-xz')

        if '+libunistring' in spec:
            config_args.append('--with-libunistring-prefix={0}'.format(
                spec['libunistring'].prefix))
        else:
            config_args.append('--with-included-libunistring')

        return config_args

    @property
    def libs(self):
        return find_libraries(
            ["libasprintf", "libgettextlib", "libgettextpo", "libgettextsrc",
                "libintl"],
            root=self.prefix, recursive=True
        )
