# -*- coding: utf-8 -*-
'''
    :codeauthor: Nicole Thomas <nicole@saltstack.com>
'''

# Import Python Libs
from __future__ import absolute_import, unicode_literals, print_function
import random
import string
import os

# Import Salt Testing Libs
from tests.support.case import ModuleCase
from tests.support.helpers import destructiveTest, skip_if_not_root

# Import Salt Libs
import salt.utils.files
from salt.exceptions import CommandExecutionError
import salt.ext.six as six

# Import 3rd-party libs
from salt.ext.six.moves import range  # pylint: disable=import-error,redefined-builtin
import salt.ext.six as six


def __random_string(size=6):
    '''
    Generates a random username
    '''
    return 'RS-' + ''.join(
        random.choice(string.ascii_uppercase + string.digits)
        for x in range(size)
    )

# Create user strings for tests
ADD_USER = __random_string()
DEL_USER = __random_string()
PRIMARY_GROUP_USER = __random_string()
CHANGE_USER = __random_string()


@destructiveTest
@skip_if_not_root
class MacUserModuleTest(ModuleCase):
    '''
    Integration tests for the mac_user module
    '''

    def setUp(self):
        '''
        Sets up test requirements
        '''
        super(MacUserModuleTest, self).setUp()
        os_grain = self.run_function('grains.item', ['kernel'])
        if os_grain['kernel'] not in 'Darwin':
            self.skipTest(
                'Test not applicable to \'{kernel}\' kernel'.format(
                    **os_grain
                )
            )

    def test_mac_user_add(self):
        '''
        Tests the add function
        '''
        try:
            self.run_function('user.add', [ADD_USER])
            user_info = self.run_function('user.info', [ADD_USER])
            self.assertEqual(ADD_USER, user_info['name'])
        except CommandExecutionError:
            self.run_function('user.delete', [ADD_USER])
            raise

    def test_mac_user_delete(self):
        '''
        Tests the delete function
        '''

        # Create a user to delete - If unsuccessful, skip the test
        if self.run_function('user.add', [DEL_USER]) is not True:
            self.run_function('user.delete', [DEL_USER])
            self.skipTest('Failed to create a user to delete')

        try:
            # Now try to delete the added user
            ret = self.run_function('user.delete', [DEL_USER])
            self.assertTrue(ret)
        except CommandExecutionError:
            raise

    def test_mac_user_primary_group(self):
        '''
        Tests the primary_group function
        '''

        # Create a user to test primary group function
        if self.run_function('user.add', [PRIMARY_GROUP_USER]) is not True:
            self.run_function('user.delete', [PRIMARY_GROUP_USER])
            self.skipTest('Failed to create a user')

        try:
            # Test mac_user.primary_group
            primary_group = self.run_function('user.primary_group', [PRIMARY_GROUP_USER])
            uid_info = self.run_function('user.info', [PRIMARY_GROUP_USER])
            self.assertIn(primary_group, uid_info['groups'])

        except AssertionError:
            self.run_function('user.delete', [PRIMARY_GROUP_USER])
            raise

    def test_mac_user_changes(self):
        '''
        Tests mac_user functions that change user properties
        '''
        # Create a user to manipulate - if unsuccessful, skip the test
        if self.run_function('user.add', [CHANGE_USER]) is not True:
            self.run_function('user.delete', [CHANGE_USER])
            self.skipTest('Failed to create a user')

        try:
            # Test mac_user.chuid
            self.run_function('user.chuid', [CHANGE_USER, 4376])
            uid_info = self.run_function('user.info', [CHANGE_USER])
            self.assertEqual(uid_info['uid'], 4376)

            # Test mac_user.chgid
            self.run_function('user.chgid', [CHANGE_USER, 4376])
            gid_info = self.run_function('user.info', [CHANGE_USER])
            self.assertEqual(gid_info['gid'], 4376)

            # Test mac.user.chshell
            self.run_function('user.chshell', [CHANGE_USER, '/bin/zsh'])
            shell_info = self.run_function('user.info', [CHANGE_USER])
            self.assertEqual(shell_info['shell'], '/bin/zsh')

            # Test mac_user.chhome
            self.run_function('user.chhome', [CHANGE_USER, '/Users/foo'])
            home_info = self.run_function('user.info', [CHANGE_USER])
            self.assertEqual(home_info['home'], '/Users/foo')

            # Test mac_user.chfullname
            self.run_function('user.chfullname', [CHANGE_USER, 'Foo Bar'])
            fullname_info = self.run_function('user.info', [CHANGE_USER])
            self.assertEqual(fullname_info['fullname'], 'Foo Bar')

            # Test mac_user.chgroups
            self.run_function('user.chgroups', [CHANGE_USER, 'wheel'])
            groups_info = self.run_function('user.info', [CHANGE_USER])
            self.assertEqual(groups_info['groups'], ['wheel'])

        except AssertionError:
            self.run_function('user.delete', [CHANGE_USER])
            raise

    def test_mac_user_enable_auto_login(self):
        '''
        Tests mac_user functions that enable auto login
        '''
        # Make sure auto login is disabled before we start
        if self.run_function('user.get_auto_login'):
            self.skipTest('Auto login already enabled')

        try:
            # Does enable return True
            self.assertTrue(
                self.run_function('user.enable_auto_login',
                                  ['Spongebob', 'Squarepants']))

            # Did it set the user entry in the plist file
            self.assertEqual(
                self.run_function('user.get_auto_login'),
                'Spongebob')

            # Did it generate the `/etc/kcpassword` file
            self.assertTrue(os.path.exists('/etc/kcpassword'))

            # Are the contents of the file correct
            if six.PY2:
                test_data = b'.\xf8\'B\xa0\xd9\xad\x8b\xcd\xcdl'
            else:
                test_data = b".\xc3\xb8'B\xc2\xa0\xc3\x99\xc2\xad\xc2\x8b\xc3\x8d\xc3\x8dl"
            with salt.utils.files.fopen('/etc/kcpassword', 'r' if six.PY2 else 'rb') as f:
                file_data = f.read()
            self.assertEqual(test_data, file_data)

            # Does disable return True
            self.assertTrue(self.run_function('user.disable_auto_login'))

            # Does it remove the user entry in the plist file
            self.assertFalse(self.run_function('user.get_auto_login'))

            # Is the `/etc/kcpassword` file removed
            self.assertFalse(os.path.exists('/etc/kcpassword'))

        finally:
            # Make sure auto_login is disabled
            self.assertTrue(self.run_function('user.disable_auto_login'))

            # Make sure autologin is disabled
            if self.run_function('user.get_auto_login'):
                raise Exception('Failed to disable auto login')

    def test_mac_user_disable_auto_login(self):
        '''
        Tests mac_user functions that disable auto login
        '''
        # Make sure auto login is enabled before we start
        # Is there an existing setting
        if self.run_function('user.get_auto_login'):
            self.skipTest('Auto login already enabled')

        try:
            # Enable auto login for the test
            self.run_function('user.enable_auto_login',
                              ['Spongebob', 'Squarepants'])

            # Make sure auto login got set up
            if not self.run_function('user.get_auto_login') == 'Spongebob':
                raise Exception('Failed to enable auto login')

            # Does disable return True
            self.assertTrue(self.run_function('user.disable_auto_login'))

            # Does it remove the user entry in the plist file
            self.assertFalse(self.run_function('user.get_auto_login'))

            # Is the `/etc/kcpassword` file removed
            self.assertFalse(os.path.exists('/etc/kcpassword'))

        finally:
            # Make sure auto login is disabled
            self.assertTrue(self.run_function('user.disable_auto_login'))

            # Make sure auto login is disabled
            if self.run_function('user.get_auto_login'):
                raise Exception('Failed to disable auto login')

    def tearDown(self):
        '''
        Clean up after tests
        '''

        # Delete ADD_USER
        add_info = self.run_function('user.info', [ADD_USER])
        if add_info:
            self.run_function('user.delete', [ADD_USER])

        # Delete DEL_USER if something failed
        del_info = self.run_function('user.info', [DEL_USER])
        if del_info:
            self.run_function('user.delete', [DEL_USER])

        # Delete CHANGE_USER
        change_info = self.run_function('user.info', [CHANGE_USER])
        if change_info:
            self.run_function('user.delete', [CHANGE_USER])