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

# 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.modules.defaults as defaults


class DefaultsTestCase(TestCase, LoaderModuleMockMixin):
    '''
    Test cases for salt.modules.defaults
    '''
    def setup_loader_modules(self):
        return {defaults: {}}

    def test_get_mock(self):
        '''
        Test if it execute a defaults client run and return a dict
        '''
        with patch.object(inspect, 'stack', MagicMock(return_value=[])), \
                patch('salt.modules.defaults.get',
                      MagicMock(return_value={'users': {'root': [0]}})):
            self.assertEqual(defaults.get('core:users:root'),
                             {'users': {'root': [0]}})

    def test_merge_with_list_merging(self):
        '''
        Test deep merging of dicts with merge_lists enabled.
        '''

        src_dict = {
            'string_key': 'string_val_src',
            'list_key': [
                'list_val_src',
            ],
            'dict_key': {
                'dict_key_src': 'dict_val_src',
            }
        }

        dest_dict = {
            'string_key': 'string_val_dest',
            'list_key': [
                'list_val_dest',
            ],
            'dict_key': {
                'dict_key_dest': 'dict_val_dest',
            }
        }

        merged_dict = {
            'string_key': 'string_val_src',
            'list_key': [
                'list_val_dest',
                'list_val_src'
            ],
            'dict_key': {
                'dict_key_dest': 'dict_val_dest',
                'dict_key_src': 'dict_val_src'
            }
        }

        defaults.merge(dest_dict, src_dict, merge_lists=True)
        self.assertEqual(dest_dict, merged_dict)

    def test_merge_without_list_merging(self):
        '''
        Test deep merging of dicts with merge_lists disabled.
        '''

        src = {
            'string_key': 'string_val_src',
            'list_key': [
                'list_val_src',
            ],
            'dict_key': {
                'dict_key_src': 'dict_val_src',
            }
        }

        dest = {
            'string_key': 'string_val_dest',
            'list_key': [
                'list_val_dest',
            ],
            'dict_key': {
                'dict_key_dest': 'dict_val_dest',
            }
        }

        merged = {
            'string_key': 'string_val_src',
            'list_key': [
                'list_val_src'
            ],
            'dict_key': {
                'dict_key_dest': 'dict_val_dest',
                'dict_key_src': 'dict_val_src'
            }
        }

        defaults.merge(dest, src, merge_lists=False)
        self.assertEqual(dest, merged)

    def test_merge_not_in_place(self):
        '''
        Test deep merging of dicts not in place.
        '''

        src = {
            'nested_dict': {
                'A': 'A'
            }
        }

        dest = {
            'nested_dict': {
                'B': 'B'
            }
        }

        dest_orig = {
            'nested_dict': {
                'B': 'B'
            }
        }

        merged = {
            'nested_dict': {
                'A': 'A',
                'B': 'B'
            }
        }

        final = defaults.merge(dest, src, in_place=False)
        self.assertEqual(dest, dest_orig)
        self.assertEqual(final, merged)

    def test_deepcopy(self):
        '''
        Test a deep copy of object.
        '''

        src = {
            'A': 'A',
            'B': 'B'
        }

        dist = defaults.deepcopy(src)
        dist.update({'C': 'C'})

        result = {
            'A': 'A',
            'B': 'B',
            'C': 'C'
        }

        self.assertFalse(src == dist)
        self.assertTrue(dist == result)

    def test_update_in_place(self):
        '''
        Test update with defaults values in place.
        '''

        group01 = {
            'defaults': {
                'enabled': True,
                'extra': [
                    'test',
                    'stage'
                ]
            },
            'nodes': {
                'host01': {
                    'index': 'foo',
                    'upstream': 'bar'
                }
            }
        }

        host01 = {
            'enabled': True,
            'index': 'foo',
            'upstream': 'bar',
            'extra': [
                'test',
                'stage'
            ],
        }

        defaults.update(group01['nodes'], group01['defaults'])
        self.assertEqual(group01['nodes']['host01'], host01)