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

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

# Import Salt Libs
import salt.states.ssh_known_hosts as ssh_known_hosts


@skipIf(NO_MOCK, NO_MOCK_REASON)
class SshKnownHostsTestCase(TestCase, LoaderModuleMockMixin):
    '''
    Test cases for salt.states.ssh_known_hosts
    '''
    def setup_loader_modules(self):
        return {ssh_known_hosts: {}}

    # 'present' function tests: 1

    def test_present(self):
        '''
        Test to verifies that the specified host is known by the specified user.
        '''
        name = 'github.com'
        user = 'root'
        key = '16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48'
        fingerprint = [key]

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

        with patch.dict(ssh_known_hosts.__opts__, {'test': True}):
            with patch.object(os.path, 'isabs', MagicMock(return_value=False)):
                comt = ('If not specifying a "user", '
                        'specify an absolute "config".')
                ret.update({'comment': comt})
                self.assertDictEqual(ssh_known_hosts.present(name), ret)

            comt = ('Specify either "key" or "fingerprint", not both.')
            ret.update({'comment': comt})
            self.assertDictEqual(ssh_known_hosts.present(name, user, key=key,
                                                         fingerprint=[key]),
                                 ret)

            comt = ('Required argument "enc" if using "key" argument.')
            ret.update({'comment': comt})
            self.assertDictEqual(ssh_known_hosts.present(name, user, key=key),
                                 ret)

            mock = MagicMock(side_effect=['exists', 'add', 'update'])
            with patch.dict(ssh_known_hosts.__salt__,
                            {'ssh.check_known_host': mock}):
                comt = ('Host github.com is already in .ssh/known_hosts')
                ret.update({'comment': comt, 'result': True})
                self.assertDictEqual(ssh_known_hosts.present(name, user), ret)

                comt = ('Key for github.com is set to be'
                        ' added to .ssh/known_hosts')
                ret.update({'comment': comt, 'result': None})
                self.assertDictEqual(ssh_known_hosts.present(name, user), ret)

                comt = ('Key for github.com is set to be '
                        'updated in .ssh/known_hosts')
                ret.update({'comment': comt})
                self.assertDictEqual(ssh_known_hosts.present(name, user), ret)

        with patch.dict(ssh_known_hosts.__opts__, {'test': False}):
            result = {'status': 'exists', 'error': ''}
            mock = MagicMock(return_value=result)
            with patch.dict(ssh_known_hosts.__salt__,
                            {'ssh.set_known_host': mock}):
                comt = ('github.com already exists in .ssh/known_hosts')
                ret.update({'comment': comt, 'result': True})
                self.assertDictEqual(ssh_known_hosts.present(name, user), ret)

            result = {'status': 'error', 'error': ''}
            mock = MagicMock(return_value=result)
            with patch.dict(ssh_known_hosts.__salt__,
                            {'ssh.set_known_host': mock}):
                ret.update({'comment': '', 'result': False})
                self.assertDictEqual(ssh_known_hosts.present(name, user), ret)

            result = {'status': 'updated', 'error': '',
                      'new': [{'fingerprint': fingerprint, 'key': key}],
                      'old': ''}
            mock = MagicMock(return_value=result)
            with patch.dict(ssh_known_hosts.__salt__,
                            {'ssh.set_known_host': mock}):
                comt = ("{0}'s key saved to .ssh/known_hosts (key: {1})"
                        .format(name, key))
                ret.update({'comment': comt, 'result': True,
                            'changes': {'new': [{'fingerprint': fingerprint,
                                                'key': key}], 'old': ''}})
                self.assertDictEqual(ssh_known_hosts.present(name, user,
                                                             key=key), ret)

                comt = ("{0}'s key saved to .ssh/known_hosts (fingerprint: {1})"
                        .format(name, fingerprint))
                ret.update({'comment': comt})
                self.assertDictEqual(ssh_known_hosts.present(name, user), ret)

    # 'absent' function tests: 1

    def test_absent(self):
        '''
        Test to verifies that the specified host is not known by the given user.
        '''
        name = 'github.com'
        user = 'root'

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

        with patch.object(os.path, 'isabs', MagicMock(return_value=False)):
            comt = ('If not specifying a "user", '
                    'specify an absolute "config".')
            ret.update({'comment': comt})
            self.assertDictEqual(ssh_known_hosts.absent(name), ret)

        mock = MagicMock(return_value=False)
        with patch.dict(ssh_known_hosts.__salt__,
                        {'ssh.get_known_host_entries': mock}):
            comt = ('Host is already absent')
            ret.update({'comment': comt, 'result': True})
            self.assertDictEqual(ssh_known_hosts.absent(name, user), ret)

        mock = MagicMock(return_value=True)
        with patch.dict(ssh_known_hosts.__salt__,
                        {'ssh.get_known_host_entries': mock}):
            with patch.dict(ssh_known_hosts.__opts__, {'test': True}):
                comt = ('Key for github.com is set to be'
                        ' removed from .ssh/known_hosts')
                ret.update({'comment': comt, 'result': None})
                self.assertDictEqual(ssh_known_hosts.absent(name, user), ret)

            with patch.dict(ssh_known_hosts.__opts__, {'test': False}):
                result = {'status': 'error', 'error': ''}
                mock = MagicMock(return_value=result)
                with patch.dict(ssh_known_hosts.__salt__,
                                {'ssh.rm_known_host': mock}):
                    ret.update({'comment': '', 'result': False})
                    self.assertDictEqual(ssh_known_hosts.absent(name, user),
                                         ret)

                result = {'status': 'removed', 'error': '',
                          'comment': 'removed'}
                mock = MagicMock(return_value=result)
                with patch.dict(ssh_known_hosts.__salt__,
                                {'ssh.rm_known_host': mock}):
                    ret.update({'comment': 'removed', 'result': True,
                                'changes': {'new': None, 'old': True}})
                    self.assertDictEqual(ssh_known_hosts.absent(name, user),
                                         ret)