# -*- coding: utf-8 -*-

# Import Python Libs
from __future__ import absolute_import
from tempfile import NamedTemporaryFile
import os

# Import Salt Testing Libs
from tests.support.mixins import LoaderModuleMockMixin
from tests.support.unit import TestCase, skipIf
from tests.support.mock import (
    MagicMock,
    NO_MOCK,
    NO_MOCK_REASON,
    patch,
    mock_open
)

# Import Salt Libs
from salt.exceptions import CommandExecutionError, SaltInvocationError
import salt.modules.timezone as timezone
from salt.ext import six
import salt.utils.platform
import salt.utils.stringutils

GET_ZONE_FILE = 'salt.modules.timezone._get_zone_file'
GET_ETC_LOCALTIME_PATH = 'salt.modules.timezone._get_etc_localtime_path'


@skipIf(NO_MOCK, NO_MOCK_REASON)
class TimezoneTestCase(TestCase, LoaderModuleMockMixin):

    def setup_loader_modules(self):
        return {timezone: {'__grains__': {'os_family': 'Ubuntu'}}}

    def setUp(self):
        self.tempfiles = []

    def tearDown(self):
        for tempfile in self.tempfiles:
            try:
                os.remove(tempfile.name)
            except OSError:
                pass
        del self.tempfiles

    def test_zone_compare_equal(self):
        etc_localtime = self.create_tempfile_with_contents('a')
        zone_path = self.create_tempfile_with_contents('a')

        with patch(GET_ZONE_FILE, lambda p: zone_path.name):
            with patch(GET_ETC_LOCALTIME_PATH, lambda: etc_localtime.name):

                self.assertTrue(timezone.zone_compare('foo'))

    def test_zone_compare_nonexistent(self):
        etc_localtime = self.create_tempfile_with_contents('a')

        with patch(GET_ZONE_FILE, lambda p: '/foopath/nonexistent'):
            with patch(GET_ETC_LOCALTIME_PATH, lambda: etc_localtime.name):

                self.assertRaises(SaltInvocationError, timezone.zone_compare, 'foo')

    def test_zone_compare_unequal(self):
        etc_localtime = self.create_tempfile_with_contents('a')
        zone_path = self.create_tempfile_with_contents('b')

        with patch(GET_ZONE_FILE, lambda p: zone_path.name):
            with patch(GET_ETC_LOCALTIME_PATH, lambda: etc_localtime.name):

                self.assertFalse(timezone.zone_compare('foo'))

    def test_missing_localtime(self):
        with patch(GET_ZONE_FILE, lambda p: '/nonexisting'):
            with patch(GET_ETC_LOCALTIME_PATH, lambda: '/also-missing'):
                self.assertRaises(CommandExecutionError, timezone.zone_compare, 'foo')

    def create_tempfile_with_contents(self, contents):
        temp = NamedTemporaryFile(delete=False)
        if six.PY3:
            temp.write(salt.utils.stringutils.to_bytes(contents))
        else:
            temp.write(contents)
        temp.close()
        self.tempfiles.append(temp)
        return temp


@skipIf(NO_MOCK, NO_MOCK_REASON)
class TimezoneModuleTestCase(TestCase, LoaderModuleMockMixin):
    '''
        Timezone test case
        '''
    TEST_TZ = 'UTC'

    def setup_loader_modules(self):
        return {timezone: {'__grains__': {'os': ''},
                           '__salt__': {'file.sed': MagicMock(),
                                        'cmd.run': MagicMock(),
                                        'cmd.retcode': MagicMock(return_value=0)}}}

    @patch('salt.utils.path.which', MagicMock(return_value=False))
    def test_get_zone_centos(self):
        '''
        Test CentOS is recognized
        :return:
        '''
        with patch.dict(timezone.__grains__, {'os': 'centos'}):
            with patch('salt.modules.timezone._get_zone_etc_localtime', MagicMock(return_value=self.TEST_TZ)):
                assert timezone.get_zone() == self.TEST_TZ

    @patch('salt.utils.path.which', MagicMock(return_value=False))
    def test_get_zone_os_family_rh_suse(self):
        '''
        Test RedHat and Suse are recognized
        :return:
        '''
        for osfamily in ['RedHat', 'Suse']:
            with patch.dict(timezone.__grains__, {'os_family': [osfamily]}):
                with patch('salt.modules.timezone._get_zone_sysconfig', MagicMock(return_value=self.TEST_TZ)):
                    assert timezone.get_zone() == self.TEST_TZ

    @patch('salt.utils.path.which', MagicMock(return_value=False))
    def test_get_zone_os_family_debian_gentoo(self):
        '''
        Test Debian and Gentoo are recognized
        :return:
        '''
        for osfamily in ['Debian', 'Gentoo']:
            with patch.dict(timezone.__grains__, {'os_family': [osfamily]}):
                with patch('salt.modules.timezone._get_zone_etc_timezone', MagicMock(return_value=self.TEST_TZ)):
                    assert timezone.get_zone() == self.TEST_TZ

    @patch('salt.utils.path.which', MagicMock(return_value=False))
    def test_get_zone_os_family_allbsd_nilinuxrt(self):
        '''
        Test *BSD and NILinuxRT are recognized
        :return:
        '''
        for osfamily in ['FreeBSD', 'OpenBSD', 'NetBSD', 'NILinuxRT']:
            with patch.dict(timezone.__grains__, {'os_family': osfamily}):
                with patch('salt.modules.timezone._get_zone_etc_localtime', MagicMock(return_value=self.TEST_TZ)):
                    assert timezone.get_zone() == self.TEST_TZ

    @patch('salt.utils.path.which', MagicMock(return_value=False))
    def test_get_zone_os_family_slowlaris(self):
        '''
        Test Slowlaris is recognized
        :return:
        '''
        with patch.dict(timezone.__grains__, {'os_family': ['Solaris']}):
            with patch('salt.modules.timezone._get_zone_solaris', MagicMock(return_value=self.TEST_TZ)):
                assert timezone.get_zone() == self.TEST_TZ

    @patch('salt.utils.path.which', MagicMock(return_value=False))
    def test_get_zone_os_family_aix(self):
        '''
        Test IBM AIX is recognized
        :return:
        '''
        with patch.dict(timezone.__grains__, {'os_family': ['AIX']}):
            with patch('salt.modules.timezone._get_zone_aix', MagicMock(return_value=self.TEST_TZ)):
                assert timezone.get_zone() == self.TEST_TZ

    @skipIf(salt.utils.platform.is_windows(), 'os.symlink not available in Windows')
    @patch('salt.utils.path.which', MagicMock(return_value=False))
    @patch('os.path.exists', MagicMock(return_value=True))
    @patch('os.unlink', MagicMock())
    @patch('os.symlink', MagicMock())
    def test_set_zone_redhat(self):
        '''
        Test zone set on RH series
        :return:
        '''
        with patch.dict(timezone.__grains__, {'os_family': ['RedHat']}):
            assert timezone.set_zone(self.TEST_TZ)
            name, args, kwargs = timezone.__salt__['file.sed'].mock_calls[0]
            assert args == ('/etc/sysconfig/clock', '^ZONE=.*', 'ZONE="UTC"')

    @skipIf(salt.utils.platform.is_windows(), 'os.symlink not available in Windows')
    @patch('salt.utils.path.which', MagicMock(return_value=False))
    @patch('os.path.exists', MagicMock(return_value=True))
    @patch('os.unlink', MagicMock())
    @patch('os.symlink', MagicMock())
    def test_set_zone_suse(self):
        '''
        Test zone set on SUSE series
        :return:
        '''
        with patch.dict(timezone.__grains__, {'os_family': ['Suse']}):
            assert timezone.set_zone(self.TEST_TZ)
            name, args, kwargs = timezone.__salt__['file.sed'].mock_calls[0]
            assert args == ('/etc/sysconfig/clock', '^TIMEZONE=.*', 'TIMEZONE="UTC"')

    @skipIf(salt.utils.platform.is_windows(), 'os.symlink not available in Windows')
    @patch('salt.utils.path.which', MagicMock(return_value=False))
    @patch('os.path.exists', MagicMock(return_value=True))
    @patch('os.unlink', MagicMock())
    @patch('os.symlink', MagicMock())
    def test_set_zone_gentoo(self):
        '''
        Test zone set on Gentoo series
        :return:
        '''
        with patch.dict(timezone.__grains__, {'os_family': ['Gentoo']}):
            _fopen = mock_open()
            with patch('salt.utils.files.fopen', _fopen):
                assert timezone.set_zone(self.TEST_TZ)
                name, args, kwargs = _fopen.mock_calls[0]
                assert args == ('/etc/timezone', 'w')
                name, args, kwargs = _fopen.return_value.__enter__.return_value.write.mock_calls[0]
                assert args == ('UTC',)

    @skipIf(salt.utils.platform.is_windows(), 'os.symlink not available in Windows')
    @patch('salt.utils.path.which', MagicMock(return_value=False))
    @patch('os.path.exists', MagicMock(return_value=True))
    @patch('os.unlink', MagicMock())
    @patch('os.symlink', MagicMock())
    def test_set_zone_debian(self):
        '''
        Test zone set on Debian series
        :return:
        '''
        with patch.dict(timezone.__grains__, {'os_family': ['Debian']}):
            _fopen = mock_open()
            with patch('salt.utils.files.fopen', _fopen):
                assert timezone.set_zone(self.TEST_TZ)
                name, args, kwargs = _fopen.mock_calls[0]
                assert args == ('/etc/timezone', 'w')
                name, args, kwargs = _fopen.return_value.__enter__.return_value.write.mock_calls[0]
                assert args == ('UTC',)

    @skipIf(salt.utils.platform.is_windows(), 'os.symlink not available in Windows')
    @patch('salt.utils.path.which', MagicMock(return_value=True))
    @patch('os.path.exists', MagicMock(return_value=True))
    @patch('os.unlink', MagicMock())
    @patch('os.symlink', MagicMock())
    def test_get_hwclock_timedate_utc(self):
        '''
        Test get hwclock UTC/localtime
        :return:
        '''
        with patch('salt.modules.timezone._timedatectl', MagicMock(return_value={'stdout': 'rtc in local tz'})):
            assert timezone.get_hwclock() == 'UTC'
        with patch('salt.modules.timezone._timedatectl', MagicMock(return_value={'stdout': 'rtc in local tz:yes'})):
            assert timezone.get_hwclock() == 'localtime'

    @skipIf(salt.utils.platform.is_windows(), 'os.symlink not available in Windows')
    @patch('salt.utils.path.which', MagicMock(return_value=False))
    @patch('os.path.exists', MagicMock(return_value=True))
    @patch('os.unlink', MagicMock())
    @patch('os.symlink', MagicMock())
    def test_get_hwclock_suse(self):
        '''
        Test get hwclock on SUSE
        :return:
        '''
        with patch.dict(timezone.__grains__, {'os_family': ['Suse']}):
            timezone.get_hwclock()
            name, args, kwarg = timezone.__salt__['cmd.run'].mock_calls[0]
            assert args == (['tail', '-n', '1', '/etc/adjtime'],)
            assert kwarg == {'python_shell': False}

    @skipIf(salt.utils.platform.is_windows(), 'os.symlink not available in Windows')
    @patch('salt.utils.path.which', MagicMock(return_value=False))
    @patch('os.path.exists', MagicMock(return_value=True))
    @patch('os.unlink', MagicMock())
    @patch('os.symlink', MagicMock())
    def test_get_hwclock_redhat(self):
        '''
        Test get hwclock on RedHat
        :return:
        '''
        with patch.dict(timezone.__grains__, {'os_family': ['RedHat']}):
            timezone.get_hwclock()
            name, args, kwarg = timezone.__salt__['cmd.run'].mock_calls[0]
            assert args == (['tail', '-n', '1', '/etc/adjtime'],)
            assert kwarg == {'python_shell': False}

    def _test_get_hwclock_debian(self):  # TODO: Enable this when testing environment is working properly
        '''
        Test get hwclock on Debian
        :return:
        '''
        with patch('salt.utils.path.which', MagicMock(return_value=False)):
            with patch('os.path.exists', MagicMock(return_value=True)):
                with patch('os.unlink', MagicMock()):
                    with patch('os.symlink', MagicMock()):
                        with patch.dict(timezone.__grains__, {'os_family': ['Debian']}):
                            timezone.get_hwclock()
                            name, args, kwarg = timezone.__salt__['cmd.run'].mock_calls[0]
                            assert args == (['tail', '-n', '1', '/etc/adjtime'],)
                            assert kwarg == {'python_shell': False}

    @skipIf(salt.utils.platform.is_windows(), 'os.symlink not available in Windows')
    @patch('salt.utils.path.which', MagicMock(return_value=False))
    @patch('os.path.exists', MagicMock(return_value=True))
    @patch('os.unlink', MagicMock())
    @patch('os.symlink', MagicMock())
    def test_get_hwclock_solaris(self):
        '''
        Test get hwclock on Solaris
        :return:
        '''
        # Incomplete
        with patch.dict(timezone.__grains__, {'os_family': ['Solaris']}):
            assert timezone.get_hwclock() == 'UTC'
            with patch('salt.utils.files.fopen', mock_open()):
                assert timezone.get_hwclock() == 'localtime'

    @skipIf(salt.utils.platform.is_windows(), 'os.symlink not available in Windows')
    @patch('salt.utils.path.which', MagicMock(return_value=False))
    @patch('os.path.exists', MagicMock(return_value=True))
    @patch('os.unlink', MagicMock())
    @patch('os.symlink', MagicMock())
    def test_get_hwclock_aix(self):
        '''
        Test get hwclock on AIX
        :return:
        '''
        # Incomplete
        hwclock = 'localtime'
        if not os.path.isfile('/etc/environment'):
            hwclock = 'UTC'
        with patch.dict(timezone.__grains__, {'os_family': ['AIX']}):
            assert timezone.get_hwclock() == hwclock

    @skipIf(salt.utils.platform.is_windows(), 'os.symlink not available in Windows')
    @patch('salt.utils.path.which', MagicMock(return_value=False))
    @patch('os.path.exists', MagicMock(return_value=True))
    @patch('os.unlink', MagicMock())
    @patch('os.symlink', MagicMock())
    def test_set_hwclock_aix_nilinuxrt(self):
        '''
        Test set hwclock on AIX and NILinuxRT
        :return:
        '''
        for osfamily in ['AIX', 'NILinuxRT']:
            with patch.dict(timezone.__grains__, {'os_family': osfamily}):
                with self.assertRaises(SaltInvocationError):
                    assert timezone.set_hwclock('forty two')
                assert timezone.set_hwclock('UTC')

    @skipIf(salt.utils.platform.is_windows(), 'os.symlink not available in Windows')
    @patch('salt.utils.path.which', MagicMock(return_value=False))
    @patch('os.path.exists', MagicMock(return_value=True))
    @patch('os.unlink', MagicMock())
    @patch('os.symlink', MagicMock())
    @patch('salt.modules.timezone.get_zone', MagicMock(return_value='TEST_TIMEZONE'))
    def test_set_hwclock_solaris(self):
        '''
        Test set hwclock on Solaris
        :return:
        '''
        with patch.dict(timezone.__grains__, {'os_family': ['Solaris'],
                                              'cpuarch': 'x86'}):
            with self.assertRaises(SaltInvocationError):
                assert timezone.set_hwclock('forty two')
            assert timezone.set_hwclock('UTC')
            name, args, kwargs = timezone.__salt__['cmd.retcode'].mock_calls[0]
            assert args == (['rtc', '-z', 'GMT'],)
            assert kwargs == {'python_shell': False}

    @skipIf(salt.utils.platform.is_windows(), 'os.symlink not available in Windows')
    @patch('salt.utils.path.which', MagicMock(return_value=False))
    @patch('os.path.exists', MagicMock(return_value=True))
    @patch('os.unlink', MagicMock())
    @patch('os.symlink', MagicMock())
    @patch('salt.modules.timezone.get_zone', MagicMock(return_value='TEST_TIMEZONE'))
    def test_set_hwclock_arch(self):
        '''
        Test set hwclock on arch
        :return:
        '''
        with patch.dict(timezone.__grains__, {'os_family': ['Arch']}):
            assert timezone.set_hwclock('UTC')
            name, args, kwargs = timezone.__salt__['cmd.retcode'].mock_calls[0]
            assert args == (['timezonectl', 'set-local-rtc', 'false'],)
            assert kwargs == {'python_shell': False}

    @skipIf(salt.utils.platform.is_windows(), 'os.symlink not available in Windows')
    @patch('salt.utils.path.which', MagicMock(return_value=False))
    @patch('os.path.exists', MagicMock(return_value=True))
    @patch('os.unlink', MagicMock())
    @patch('os.symlink', MagicMock())
    @patch('salt.modules.timezone.get_zone', MagicMock(return_value='TEST_TIMEZONE'))
    def test_set_hwclock_redhat(self):
        '''
        Test set hwclock on RedHat
        :return:
        '''
        with patch.dict(timezone.__grains__, {'os_family': ['RedHat']}):
            assert timezone.set_hwclock('UTC')
            name, args, kwargs = timezone.__salt__['file.sed'].mock_calls[0]
            assert args == ('/etc/sysconfig/clock', '^ZONE=.*', 'ZONE="TEST_TIMEZONE"')

    @skipIf(salt.utils.platform.is_windows(), 'os.symlink not available in Windows')
    @patch('salt.utils.path.which', MagicMock(return_value=False))
    @patch('os.path.exists', MagicMock(return_value=True))
    @patch('os.unlink', MagicMock())
    @patch('os.symlink', MagicMock())
    @patch('salt.modules.timezone.get_zone', MagicMock(return_value='TEST_TIMEZONE'))
    def test_set_hwclock_suse(self):
        '''
        Test set hwclock on SUSE
        :return:
        '''
        with patch.dict(timezone.__grains__, {'os_family': ['Suse']}):
            assert timezone.set_hwclock('UTC')
            name, args, kwargs = timezone.__salt__['file.sed'].mock_calls[0]
            assert args == ('/etc/sysconfig/clock', '^TIMEZONE=.*', 'TIMEZONE="TEST_TIMEZONE"')

    @skipIf(salt.utils.platform.is_windows(), 'os.symlink not available in Windows')
    @patch('salt.utils.path.which', MagicMock(return_value=False))
    @patch('os.path.exists', MagicMock(return_value=True))
    @patch('os.unlink', MagicMock())
    @patch('os.symlink', MagicMock())
    @patch('salt.modules.timezone.get_zone', MagicMock(return_value='TEST_TIMEZONE'))
    def test_set_hwclock_debian(self):
        '''
        Test set hwclock on Debian
        :return:
        '''
        with patch.dict(timezone.__grains__, {'os_family': ['Debian']}):
            assert timezone.set_hwclock('UTC')
            name, args, kwargs = timezone.__salt__['file.sed'].mock_calls[0]
            assert args == ('/etc/default/rcS', '^UTC=.*', 'UTC=yes')

            assert timezone.set_hwclock('localtime')
            name, args, kwargs = timezone.__salt__['file.sed'].mock_calls[1]
            assert args == ('/etc/default/rcS', '^UTC=.*', 'UTC=no')

    @skipIf(salt.utils.platform.is_windows(), 'os.symlink not available in Windows')
    @patch('salt.utils.path.which', MagicMock(return_value=False))
    @patch('os.path.exists', MagicMock(return_value=True))
    @patch('os.unlink', MagicMock())
    @patch('os.symlink', MagicMock())
    @patch('salt.modules.timezone.get_zone', MagicMock(return_value='TEST_TIMEZONE'))
    def test_set_hwclock_gentoo(self):
        '''
        Test set hwclock on Gentoo
        :return:
        '''
        with patch.dict(timezone.__grains__, {'os_family': ['Gentoo']}):
            with self.assertRaises(SaltInvocationError):
                timezone.set_hwclock('forty two')

            timezone.set_hwclock('UTC')
            name, args, kwargs = timezone.__salt__['file.sed'].mock_calls[0]
            assert args == ('/etc/conf.d/hwclock', '^clock=.*', 'clock="UTC"')

            timezone.set_hwclock('localtime')
            name, args, kwargs = timezone.__salt__['file.sed'].mock_calls[1]
            assert args == ('/etc/conf.d/hwclock', '^clock=.*', 'clock="local"')