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

# Import python libs
from __future__ import absolute_import, unicode_literals

# Import Salt Testing libs
from tests.support.unit import TestCase

# Import Salt libs
from salt.utils.listdiffer import list_diff

from salt.utils import dictdiffer
NONE = dictdiffer.RecursiveDictDiffer.NONE_VALUE


class ListDictDifferTestCase(TestCase):

    def setUp(self):
        old_list = [{'key': 1, 'value': 'foo1', 'int_value': 101},
                    {'key': 2, 'value': 'foo2', 'int_value': 102},
                    {'key': 3, 'value': 'foo3', 'int_value': 103}]
        new_list = [{'key': 1, 'value': 'foo1', 'int_value': 101},
                    {'key': 2, 'value': 'foo2', 'int_value': 112},
                    {'key': 5, 'value': 'foo5', 'int_value': 105}]
        self.list_diff = list_diff(old_list, new_list, key='key')

    def tearDown(self):
        for attrname in ('list_diff',):
            try:
                delattr(self, attrname)
            except AttributeError:
                continue

    def test_added(self):
        self.assertEqual(len(self.list_diff.added), 1)
        self.assertDictEqual(self.list_diff.added[0],
                             {'key': 5, 'value': 'foo5', 'int_value': 105})

    def test_removed(self):
        self.assertEqual(len(self.list_diff.removed), 1)
        self.assertDictEqual(self.list_diff.removed[0],
                             {'key': 3, 'value': 'foo3', 'int_value': 103})

    def test_diffs(self):
        self.assertEqual(len(self.list_diff.diffs), 3)
        self.assertDictEqual(self.list_diff.diffs[0],
                             {2: {'int_value': {'new': 112, 'old': 102}}})
        self.assertDictEqual(self.list_diff.diffs[1],
                             # Added items
                             {5: {'int_value': {'new': 105, 'old': NONE},
                                  'key': {'new': 5, 'old': NONE},
                                  'value': {'new': 'foo5', 'old': NONE}}})
        self.assertDictEqual(self.list_diff.diffs[2],
                             # Removed items
                             {3: {'int_value': {'new': NONE, 'old': 103},
                                  'key': {'new': NONE, 'old': 3},
                                  'value': {'new': NONE, 'old': 'foo3'}}})

    def test_new_values(self):
        self.assertEqual(len(self.list_diff.new_values), 2)
        self.assertDictEqual(self.list_diff.new_values[0],
                             {'key': 2, 'int_value': 112})
        self.assertDictEqual(self.list_diff.new_values[1],
                             {'key': 5, 'value': 'foo5', 'int_value': 105})

    def test_old_values(self):
        self.assertEqual(len(self.list_diff.old_values), 2)
        self.assertDictEqual(self.list_diff.old_values[0],
                             {'key': 2, 'int_value': 102})
        self.assertDictEqual(self.list_diff.old_values[1],
                             {'key': 3, 'value': 'foo3', 'int_value': 103})

    def test_changed_all(self):
        self.assertEqual(self.list_diff.changed(selection='all'),
                         ['key.2.int_value', 'key.5.int_value', 'key.5.value',
                          'key.3.int_value', 'key.3.value'])

    def test_changed_intersect(self):
        self.assertEqual(self.list_diff.changed(selection='intersect'),
                         ['key.2.int_value'])

    def test_changes_str(self):
        self.assertEqual(self.list_diff.changes_str,
                         '\tidentified by key 2:\n'
                         '\tint_value from 102 to 112\n'
                         '\tidentified by key 3:\n'
                         '\twill be removed\n'
                         '\tidentified by key 5:\n'
                         '\twill be added\n')