#    Copyright (C) 2013 Hewlett-Packard Development Company, L.P.
#
#    Author: Juerg Haefliger <juerg.haefliger@hp.com>
#
#    Based on test_handler_set_hostname.py
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License version 3, as
#    published by the Free Software Foundation.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.

from cloudinit.config import cc_timezone

from cloudinit import cloud
from cloudinit import distros
from cloudinit import helpers
from cloudinit import util

from cloudinit.sources import DataSourceNoCloud

from .. import helpers as t_help

from configobj import ConfigObj

from six import BytesIO

import shutil
import tempfile
import logging

LOG = logging.getLogger(__name__)


class TestTimezone(t_help.FilesystemMockingTestCase):
    def setUp(self):
        super(TestTimezone, self).setUp()
        self.new_root = tempfile.mkdtemp()
        self.addCleanup(shutil.rmtree, self.new_root)

    def _get_cloud(self, distro):
        self.patchUtils(self.new_root)
        self.patchOS(self.new_root)

        paths = helpers.Paths({})

        cls = distros.fetch(distro)
        d = cls(distro, {}, paths)
        ds = DataSourceNoCloud.DataSourceNoCloud({}, d, paths)
        cc = cloud.Cloud(ds, paths, {}, d, None)
        return cc

    def test_set_timezone_sles(self):

        cfg = {
            'timezone': 'Tatooine/Bestine',
        }
        cc = self._get_cloud('sles')

        # Create a dummy timezone file
        dummy_contents = '0123456789abcdefgh'
        util.write_file('/usr/share/zoneinfo/%s' % cfg['timezone'],
                        dummy_contents)

        cc_timezone.handle('cc_timezone', cfg, cc, LOG, [])

        contents = util.load_file('/etc/sysconfig/clock', decode=False)
        n_cfg = ConfigObj(BytesIO(contents))
        self.assertEquals({'TIMEZONE': cfg['timezone']}, dict(n_cfg))

        contents = util.load_file('/etc/localtime')
        self.assertEquals(dummy_contents, contents.strip())