# -*- coding: utf-8 -*-
'''
    :codeauthor: Jayesh Kariya <jayeshk@saltstack.com>
'''
# Import Python libs
from __future__ import absolute_import, print_function, unicode_literals

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

# Import Salt Libs
import salt.states.cloud as cloud
import salt.utils.cloud


class CloudTestCase(TestCase, LoaderModuleMockMixin):
    '''
    Test cases for salt.states.cloud
    '''
    def setup_loader_modules(self):
        return {cloud: {}}

    # 'present' function tests: 1

    def test_present(self):
        '''
        Test to spin up a single instance on a cloud provider, using salt-cloud.
        '''
        name = 'mycloud'
        cloud_provider = 'my_cloud_provider'

        ret = {'name': name,
               'result': True,
               'changes': {},
               'comment': ''}

        mock = MagicMock(side_effect=[True, False])
        mock_bool = MagicMock(side_effect=[True, False, False])
        mock_dict = MagicMock(return_value={'cloud': 'saltcloud'})
        with patch.dict(cloud.__salt__, {'cmd.retcode': mock,
                                         'cloud.has_instance': mock_bool,
                                         'cloud.create': mock_dict}):
            comt = ('onlyif condition is false')
            ret.update({'comment': comt})
            self.assertDictEqual(cloud.present(name, cloud_provider,
                                               onlyif=False), ret)

            self.assertDictEqual(cloud.present(name, cloud_provider, onlyif=''),
                                 ret)

            comt = ('unless condition is true')
            ret.update({'comment': comt})
            self.assertDictEqual(cloud.present(name, cloud_provider,
                                               unless=True), ret)

            self.assertDictEqual(cloud.present(name, cloud_provider, unless=''),
                                 ret)

            comt = ('Already present instance {0}'.format(name))
            ret.update({'comment': comt})
            self.assertDictEqual(cloud.present(name, cloud_provider), ret)

            with patch.dict(cloud.__opts__, {'test': True}):
                comt = ('Instance {0} needs to be created'.format(name))
                ret.update({'comment': comt, 'result': None})
                self.assertDictEqual(cloud.present(name, cloud_provider), ret)

            with patch.dict(cloud.__opts__, {'test': False}):
                comt = ('Created instance mycloud using provider '
                        'my_cloud_provider and the following options: {}')
                ret.update({'comment': comt, 'result': True,
                            'changes': {'cloud': 'saltcloud'}})
                self.assertDictEqual(cloud.present(name, cloud_provider), ret)

    # 'absent' function tests: 1

    def test_absent(self):
        '''
        Test to ensure that no instances with the specified names exist.
        '''
        name = 'mycloud'

        ret = {'name': name,
               'result': True,
               'changes': {},
               'comment': ''}

        mock = MagicMock(side_effect=[True, False])
        mock_bool = MagicMock(side_effect=[False, True, True])
        mock_dict = MagicMock(return_value={'cloud': 'saltcloud'})
        with patch.dict(cloud.__salt__, {'cmd.retcode': mock,
                                         'cloud.has_instance': mock_bool,
                                         'cloud.destroy': mock_dict}):
            comt = ('onlyif condition is false')
            ret.update({'comment': comt})
            self.assertDictEqual(cloud.absent(name, onlyif=False), ret)

            self.assertDictEqual(cloud.absent(name, onlyif=''), ret)

            comt = ('unless condition is true')
            ret.update({'comment': comt})
            self.assertDictEqual(cloud.absent(name, unless=True), ret)

            self.assertDictEqual(cloud.absent(name, unless=''), ret)

            comt = ('Already absent instance {0}'.format(name))
            ret.update({'comment': comt})
            self.assertDictEqual(cloud.absent(name), ret)

            with patch.dict(cloud.__opts__, {'test': True}):
                comt = ('Instance {0} needs to be destroyed'.format(name))
                ret.update({'comment': comt, 'result': None})
                self.assertDictEqual(cloud.absent(name), ret)

            with patch.dict(cloud.__opts__, {'test': False}):
                comt = (('Destroyed instance {0}').format(name))
                ret.update({'comment': comt, 'result': True,
                            'changes': {'cloud': 'saltcloud'}})
                self.assertDictEqual(cloud.absent(name), ret)

    # 'profile' function tests: 1

    def test_profile(self):
        '''
        Test to create a single instance on a cloud provider,
        using a salt-cloud profile.
        '''
        name = 'mycloud'
        profile = 'myprofile'

        ret = {'name': name,
               'result': True,
               'changes': {},
               'comment': ''}

        mock = MagicMock(side_effect=[True, False])
        mock_dict = MagicMock(side_effect=[{'cloud': 'saltcloud'},
                                           {'Not Actioned': True},
                                           {'Not Actioned': True},
                                           {
                                                'Not Found': True,
                                                'Not Actioned/Not Running': True
                                           }])
        mock_d = MagicMock(return_value={})
        with patch.dict(cloud.__salt__, {'cmd.retcode': mock,
                                         'cloud.profile': mock_d,
                                         'cloud.action': mock_dict}):
            comt = ('onlyif condition is false')
            ret.update({'comment': comt})
            self.assertDictEqual(cloud.profile(name, profile, onlyif=False),
                                 ret)

            self.assertDictEqual(cloud.profile(name, profile, onlyif=''), ret)

            comt = ('unless condition is true')
            ret.update({'comment': comt})
            self.assertDictEqual(cloud.profile(name, profile, unless=True), ret)

            self.assertDictEqual(cloud.profile(name, profile, unless=''), ret)

            comt = ('Already present instance {0}'.format(name))
            ret.update({'comment': comt})
            self.assertDictEqual(cloud.profile(name, profile), ret)

            with patch.dict(cloud.__opts__, {'test': True}):
                comt = ('Instance {0} needs to be created'.format(name))
                ret.update({'comment': comt, 'result': None})
                self.assertDictEqual(cloud.profile(name, profile), ret)

            with patch.dict(cloud.__opts__, {'test': False}):
                comt = (('Failed to create instance {0}'
                         'using profile {1}').format(name, profile))
                ret.update({'comment': comt, 'result': False})
                self.assertDictEqual(cloud.profile(name, profile), ret)

            with patch.dict(cloud.__opts__, {'test': False}):
                comt = (('Failed to create instance {0}'
                         'using profile {1}').format(name, profile))
                ret.update({'comment': comt, 'result': False})
                self.assertDictEqual(cloud.profile(name, profile), ret)

    # 'volume_present' function tests: 1

    def test_volume_present(self):
        '''
        Test to check that a block volume exists.
        '''
        name = 'mycloud'

        ret = {'name': name,
               'result': False,
               'changes': {},
               'comment': ''}

        mock = MagicMock(return_value=name)
        mock_lst = MagicMock(side_effect=[[name], [], []])
        with patch.dict(cloud.__salt__, {'cloud.volume_list': mock_lst,
                                         'cloud.volume_create': mock}):
            with patch.object(salt.utils.cloud, 'check_name',
                              MagicMock(return_value=True)):
                comt = ('Invalid characters in name.')
                ret.update({'comment': comt})
                self.assertDictEqual(cloud.volume_present(name), ret)

            comt = ('Volume exists: {0}'.format(name))
            ret.update({'comment': comt, 'result': True})
            self.assertDictEqual(cloud.volume_present(name), ret)

            with patch.dict(cloud.__opts__, {'test': True}):
                comt = ('Volume {0} will be created.'.format(name))
                ret.update({'comment': comt, 'result': None})
                self.assertDictEqual(cloud.volume_present(name), ret)

            with patch.dict(cloud.__opts__, {'test': False}):
                comt = ('Volume {0} was created'.format(name))
                ret.update({'comment': comt, 'result': True,
                            'changes': {'old': None, 'new': name}})
                self.assertDictEqual(cloud.volume_present(name), ret)

    # 'volume_absent' function tests: 1

    def test_volume_absent(self):
        '''
        Test to check that a block volume exists.
        '''
        name = 'mycloud'

        ret = {'name': name,
               'result': False,
               'changes': {},
               'comment': ''}

        mock = MagicMock(return_value=False)
        mock_lst = MagicMock(side_effect=[[], [name], [name]])
        with patch.dict(cloud.__salt__, {'cloud.volume_list': mock_lst,
                                         'cloud.volume_delete': mock}):
            with patch.object(salt.utils.cloud, 'check_name',
                              MagicMock(return_value=True)):
                comt = ('Invalid characters in name.')
                ret.update({'comment': comt})
                self.assertDictEqual(cloud.volume_absent(name), ret)

            comt = ('Volume is absent.')
            ret.update({'comment': comt, 'result': True})
            self.assertDictEqual(cloud.volume_absent(name), ret)

            with patch.dict(cloud.__opts__, {'test': True}):
                comt = ('Volume {0} will be deleted.'.format(name))
                ret.update({'comment': comt, 'result': None})
                self.assertDictEqual(cloud.volume_absent(name), ret)

            with patch.dict(cloud.__opts__, {'test': False}):
                comt = ('Volume {0} failed to delete.'.format(name))
                ret.update({'comment': comt, 'result': False})
                self.assertDictEqual(cloud.volume_absent(name), ret)

    # 'volume_attached' function tests: 1

    def test_volume_attached(self):
        '''
        Test to check if a block volume is attached.
        '''
        name = 'mycloud'
        server_name = 'mycloud_server'
        disk_name = 'trogdor'

        ret = {'name': name,
               'result': False,
               'changes': {},
               'comment': ''}

        mock = MagicMock(return_value=False)
        mock_dict = MagicMock(side_effect=[{name: {'name': disk_name, 'attachments': True}}, {},
                                           {name: {'name': disk_name, 'attachments': False}},
                                           {name: {'name': disk_name, 'attachments': False}},
                                           {name: {'name': disk_name, 'attachments': False}}])
        with patch.dict(cloud.__salt__, {'cloud.volume_list': mock_dict,
                                         'cloud.action': mock}):
            with patch.object(salt.utils.cloud, 'check_name',
                              MagicMock(side_effect=[True, False, True])):
                comt = ('Invalid characters in name.')
                ret.update({'comment': comt})
                self.assertDictEqual(cloud.volume_attached(name, server_name),
                                     ret)

                ret.update({'name': server_name})
                self.assertDictEqual(cloud.volume_attached(name, server_name),
                                     ret)

            comt = ('Volume {0} is already attached: True'.format(disk_name))
            ret.update({'comment': comt, 'result': True})
            self.assertDictEqual(cloud.volume_attached(name, server_name), ret)

            comt = ('Volume {0} does not exist'.format(name))
            ret.update({'comment': comt, 'result': False})
            self.assertDictEqual(cloud.volume_attached(name, server_name), ret)

            comt = ('Server {0} does not exist'.format(server_name))
            ret.update({'comment': comt, 'result': False})
            self.assertDictEqual(cloud.volume_attached(name, server_name), ret)

            mock = MagicMock(return_value=True)
            with patch.dict(cloud.__salt__, {'cloud.action': mock,
                                             'cloud.volume_attach': mock}):
                with patch.dict(cloud.__opts__, {'test': True}):
                    comt = ('Volume {0} will be will be attached.'.format(name))
                    ret.update({'comment': comt, 'result': None})
                    self.assertDictEqual(cloud.volume_attached(name,
                                                               server_name),
                                         ret)

                with patch.dict(cloud.__opts__, {'test': False}):
                    comt = ('Volume {0} was created'.format(name))
                    ret.update({'comment': comt, 'result': True,
                                'changes': {'new': True,
                                            'old': {'name': disk_name,
                                                    'attachments': False}}})
                    self.assertDictEqual(cloud.volume_attached(name,
                                                               server_name),
                                         ret)

    # 'volume_detached' function tests: 1

    def test_volume_detached(self):
        '''
        Test to check if a block volume is detached.
        '''
        name = 'mycloud'
        server_name = 'mycloud_server'
        disk_name = 'trogdor'

        ret = {'name': name,
               'result': False,
               'changes': {},
               'comment': ''}

        mock = MagicMock(return_value=False)
        mock_dict = MagicMock(side_effect=[{name: {'name': disk_name, 'attachments': False}}, {},
                                           {name: {'name': disk_name, 'attachments': True}},
                                           {name: {'name': disk_name, 'attachments': True}},
                                           {name: {'name': disk_name, 'attachments': True}}])
        with patch.dict(cloud.__salt__, {'cloud.volume_list': mock_dict,
                                         'cloud.action': mock}):
            with patch.object(salt.utils.cloud, 'check_name',
                              MagicMock(side_effect=[True, False, True])):
                comt = ('Invalid characters in name.')
                ret.update({'comment': comt})
                self.assertDictEqual(cloud.volume_detached(name, server_name),
                                     ret)

                ret.update({'name': server_name})
                self.assertDictEqual(cloud.volume_detached(name, server_name),
                                     ret)

            comt = ('Volume {0} is not currently attached to anything.'.format(disk_name))
            ret.update({'comment': comt, 'result': True})
            self.assertDictEqual(cloud.volume_detached(name, server_name), ret)

            comt = ('Volume {0} does not exist'.format(name))
            ret.update({'comment': comt})
            self.assertDictEqual(cloud.volume_detached(name, server_name), ret)

            comt = ('Server {0} does not exist'.format(server_name))
            ret.update({'comment': comt})
            self.assertDictEqual(cloud.volume_detached(name, server_name), ret)

            mock = MagicMock(return_value=True)
            with patch.dict(cloud.__salt__, {'cloud.action': mock,
                                             'cloud.volume_detach': mock}):
                with patch.dict(cloud.__opts__, {'test': True}):
                    comt = ('Volume {0} will be will be detached.'.format(name))
                    ret.update({'comment': comt, 'result': None})
                    self.assertDictEqual(cloud.volume_detached(name,
                                                               server_name),
                                         ret)

                with patch.dict(cloud.__opts__, {'test': False}):
                    comt = ('Volume {0} was created'.format(name))
                    ret.update({'comment': comt, 'result': True,
                                'changes': {'new': True,
                                            'old': {'name': disk_name,
                                                    'attachments': True}}})
                    self.assertDictEqual(cloud.volume_detached(name,
                                                               server_name),
                                         ret)