# Copyright: See the LICENSE file.

import random
import unittest

import faker.providers

import factory


class MockFaker:
    def __init__(self, expected):
        self.expected = expected
        self.random = random.Random()

    def format(self, provider, **kwargs):
        return self.expected[provider]


class FakerTests(unittest.TestCase):
    def setUp(self):
        self._real_fakers = factory.Faker._FAKER_REGISTRY
        factory.Faker._FAKER_REGISTRY = {}

    def tearDown(self):
        factory.Faker._FAKER_REGISTRY = self._real_fakers

    def _setup_mock_faker(self, locale=None, **definitions):
        if locale is None:
            locale = factory.Faker._DEFAULT_LOCALE
        factory.Faker._FAKER_REGISTRY[locale] = MockFaker(definitions)

    def test_simple_biased(self):
        self._setup_mock_faker(name="John Doe")
        faker_field = factory.Faker('name')
        self.assertEqual("John Doe", faker_field.generate())

    def test_full_factory(self):
        class Profile:
            def __init__(self, first_name, last_name, email):
                self.first_name = first_name
                self.last_name = last_name
                self.email = email

        class ProfileFactory(factory.Factory):
            class Meta:
                model = Profile
            first_name = factory.Faker('first_name')
            last_name = factory.Faker('last_name', locale='fr_FR')
            email = factory.Faker('email')

        self._setup_mock_faker(first_name="John", last_name="Doe", email="john.doe@example.org")
        self._setup_mock_faker(first_name="Jean", last_name="Valjean", email="jvaljean@exemple.fr", locale='fr_FR')

        profile = ProfileFactory()
        self.assertEqual("John", profile.first_name)
        self.assertEqual("Valjean", profile.last_name)
        self.assertEqual('john.doe@example.org', profile.email)

    def test_override_locale(self):
        class Profile:
            def __init__(self, first_name, last_name):
                self.first_name = first_name
                self.last_name = last_name

        class ProfileFactory(factory.Factory):
            class Meta:
                model = Profile

            first_name = factory.Faker('first_name')
            last_name = factory.Faker('last_name', locale='fr_FR')

        self._setup_mock_faker(first_name="John", last_name="Doe")
        self._setup_mock_faker(first_name="Jean", last_name="Valjean", locale='fr_FR')
        self._setup_mock_faker(first_name="Johannes", last_name="Brahms", locale='de_DE')

        profile = ProfileFactory()
        self.assertEqual("John", profile.first_name)
        self.assertEqual("Valjean", profile.last_name)

        with factory.Faker.override_default_locale('de_DE'):
            profile = ProfileFactory()
            self.assertEqual("Johannes", profile.first_name)
            self.assertEqual("Valjean", profile.last_name)

        profile = ProfileFactory()
        self.assertEqual("John", profile.first_name)
        self.assertEqual("Valjean", profile.last_name)

    def test_add_provider(self):
        class Face:
            def __init__(self, smiley, french_smiley):
                self.smiley = smiley
                self.french_smiley = french_smiley

        class FaceFactory(factory.Factory):
            class Meta:
                model = Face

            smiley = factory.Faker('smiley')
            french_smiley = factory.Faker('smiley', locale='fr_FR')

        class SmileyProvider(faker.providers.BaseProvider):
            def smiley(self):
                return ':)'

        class FrenchSmileyProvider(faker.providers.BaseProvider):
            def smiley(self):
                return '(:'

        factory.Faker.add_provider(SmileyProvider)
        factory.Faker.add_provider(FrenchSmileyProvider, 'fr_FR')

        face = FaceFactory()
        self.assertEqual(":)", face.smiley)
        self.assertEqual("(:", face.french_smiley)
