import mock
from mock import patch, Mock, MagicMock
import unittest
from unittest import TestCase

from couchpotato.core.settings import Settings


class DoNotUseMe:
    """ Do not use this class, it is just for storing Mock ' s of Settings-class

    Usage:
        Select appropriate Mocks and copy-paste them to your test-method
    """

    def __do_not_call(self):
        # s = Settings
        s = Mock()

        # methods:
        s.isOptionWritable = Mock(return_value=True)
        s.set = Mock(return_value=None)
        s.save = Mock()

        # props:
        s.log = Mock()

        # subobjects
        s.p = Mock()
        s.p.getboolean = Mock(return_value=True)
        s.p.has_option = Mock


class SettingsCommon(TestCase):

    def setUp(self):
        self.s = Settings()

    def test_get_directories(self):
        s = self.s
        raw = '    /some/directory   ::/another/dir     '
        exp = ['/some/directory', '/another/dir']

        sec = 'sec'
        opt = 'opt'
        s.types[sec] = {}
        s.types[sec][opt] = 'directories'

        s.p = MagicMock()
        s.p.get.return_value = raw

        act = s.get(option = opt, section = sec)

        self.assertEqual(act, exp)

class SettingsSaveWritableNonWritable(TestCase):

    def setUp(self):
        self.s = Settings()

    def test_save_writable(self):
        s = self.s

        # set up Settings-mocks :
        # lets assume, that option is writable:
        mock_isOptionWritable = s.isOptionWritable = Mock(return_value=True)
        mock_set = s.set = Mock(return_value=None)
        mock_p_save = s.save = Mock()

        section = 'core'
        option = 'option_non_exist_be_sure'
        value = "1000"
        params = {'section': section, 'name': option, 'value': value}

        # call method:
        env_mock = Mock()

        # HERE is an example of mocking LOCAL 'import'
        with patch.dict('sys.modules', {'couchpotato.environment.Env': env_mock}):
            result = s.saveView(**params)

        self.assertIsInstance(s, Settings)
        self.assertIsInstance(result, dict)
        self.assertTrue(result['success'])

        # -----------------------------------------
        # check mock
        # -----------------------------------------
        mock_isOptionWritable.assert_called_with(section, option)

        # check, that Settings tried to save my value:
        mock_set.assert_called_with(section, option, value)

    def test_save_non_writable(self):
        s = self.s

        # set up Settings-mocks :
        # lets assume, that option is not writable:
        mock_is_w = s.isOptionWritable = Mock(return_value=False)
        mock_set = s.set = Mock(return_value=None)
        mock_p_save = s.save = Mock()
        mock_log_s = s.log = Mock()

        section = 'core'
        option = 'option_non_exist_be_sure'
        value = "1000"
        params = {'section': section, 'name': option, 'value': value}

        # call method:
        env_mock = Mock()

        # HERE is an example of mocking LOCAL 'import'
        with patch.dict('sys.modules', {'couchpotato.environment.Env': env_mock}):
            result = s.saveView(**params)

        self.assertIsInstance(s, Settings)
        self.assertIsInstance(result, dict)
        self.assertFalse(result['success'])

        # -----------------------------------------
        # check mock
        # -----------------------------------------
        # lets check, that 'set'-method was not called:
        self.assertFalse(mock_set.called, 'Method `set` was called')
        mock_is_w.assert_called_with(section, option)


class OptionMetaSuite(TestCase):
    """ tests for ro rw hidden options """

    def setUp(self):
        self.s = Settings()
        self.meta = self.s.optionMetaSuffix()

        # hide real config-parser:
        self.s.p = Mock()

    def test_no_meta_option(self):
        s = self.s

        section = 'core'
        option = 'url'

        option_meta = option + self.meta
        # setup mock
        s.p.getboolean = Mock(return_value=True)

        # there is no META-record for our option:
        s.p.has_option = Mock(side_effect=lambda s, o: not (s == section and o == option_meta))

        # by default all options are writable and readable
        self.assertTrue(s.isOptionWritable(section, option))
        self.assertTrue(s.isOptionReadable(section, option))

    def test_non_writable(self):
        s = self.s

        section = 'core'
        option = 'url'

        def mock_get_meta_ro(s, o):
            if (s == section and o == option_meta):
                return 'ro'
            return 11

        option_meta = option + self.meta
        # setup mock
        s.p.has_option = Mock(return_value=True)
        s.p.get = Mock(side_effect=mock_get_meta_ro)

        # by default all options are writable and readable
        self.assertFalse(s.isOptionWritable(section, option))
        self.assertTrue(s.isOptionReadable(section, option))