import io
import string
import sys
import unittest

from unittest.mock import MagicMock, patch

import pytest

from faker import Faker, Generator
from faker.factory import Factory
from faker.generator import random
from faker.utils import decorators, text


class FactoryTestCase(unittest.TestCase):
    def setUp(self):
        self.generator = Generator()

    def test_documentor(self):
        from faker.cli import print_doc

        output = io.StringIO()
        print_doc(output=output)
        print_doc("address", output=output)
        print_doc("faker.providers.person.it_IT", output=output)
        assert output.getvalue()

    def test_command(self):
        from faker.cli import Command

        orig_stdout = sys.stdout
        try:
            sys.stdout = io.StringIO()
            command = Command(["faker", "address"])
            command.execute()
            assert sys.stdout.getvalue()
        finally:
            sys.stdout = orig_stdout

    def test_command_custom_provider(self):
        from faker.cli import Command

        orig_stdout = sys.stdout
        try:
            sys.stdout = io.StringIO()
            command = Command(["faker", "foo", "-i", "tests.mymodule.en_US"])
            command.execute()
            assert sys.stdout.getvalue()
        finally:
            sys.stdout = orig_stdout

    def test_cli_seed(self):
        from faker.cli import Command

        orig_stdout = sys.stdout
        try:
            sys.stdout = io.StringIO()
            base_args = ["faker", "address"]
            target_args = ["--seed", "967"]
            commands = [
                Command(base_args + target_args),
                Command(base_args + target_args),
            ]
            cli_output = [None] * 2
            for i in range(2):
                commands[i].execute()
                cli_output[i] = sys.stdout.getvalue()
            cli_output[1] = cli_output[1][len(cli_output[0]) :]
            assert cli_output[0][:10] == cli_output[1][:10]
        finally:
            sys.stdout = orig_stdout

    def test_cli_seed_with_repeat(self):
        from faker.cli import Command

        orig_stdout = sys.stdout
        try:
            sys.stdout = io.StringIO()
            base_args = ["faker", "address", "-r", "3"]
            target_args = ["--seed", "967"]
            commands = [
                Command(base_args + target_args),
                Command(base_args + target_args),
            ]
            cli_output = [None] * 2
            for i in range(2):
                commands[i].execute()
                cli_output[i] = sys.stdout.getvalue()
            cli_output[1] = cli_output[1][len(cli_output[0]) :]
            assert cli_output[0] == cli_output[1]
        finally:
            sys.stdout = orig_stdout

    def test_cli_verbosity(self):
        from faker.cli import Command

        orig_stdout = sys.stdout
        try:
            sys.stdout = io.StringIO()
            base_args = ["faker", "address", "--seed", "769"]
            target_args = ["-v"]
            commands = [Command(base_args), Command(base_args + target_args)]
            cli_output = [None] * 2
            for i in range(2):
                commands[i].execute()
                cli_output[i] = sys.stdout.getvalue()
            simple_output, verbose_output = cli_output
            assert simple_output != verbose_output
        finally:
            sys.stdout = orig_stdout

    def test_unknown_provider(self):
        with pytest.raises(ModuleNotFoundError) as excinfo:
            Factory.create(providers=["dummy_provider"])
        assert str(excinfo.value) == "No module named 'dummy_provider'"

        with pytest.raises(ModuleNotFoundError) as excinfo:
            Factory.create(providers=["dummy_provider"], locale="it_IT")
        assert str(excinfo.value) == "No module named 'dummy_provider'"

    def test_unknown_locale(self):
        with pytest.raises(AttributeError) as excinfo:
            Factory.create(locale="77")
        assert str(excinfo.value) == "Invalid configuration for faker locale `77`"

        with pytest.raises(AttributeError) as excinfo:
            Factory.create(locale="77_US")
        assert str(excinfo.value) == "Invalid configuration for faker locale `77_US`"

    def test_lang_unlocalized_provider(self):
        for locale in (None, "", "en_GB", "it_IT"):
            factory = Factory.create(providers=["faker.providers.file"], locale=locale)
            assert len(factory.providers) == 1
            assert factory.providers[0].__provider__ == "faker.providers.file"
            assert factory.providers[0].__lang__ is None

    def test_lang_localized_provider(self, with_default=True):
        class DummyProviderModule:
            localized = True

            def __init__(self):
                if with_default:
                    self.default_locale = "ar_EG"

            @property
            def __name__(self):
                return self.__class__.__name__

            class Provider:
                def __init__(self, *args, **kwargs):
                    pass

        # There's a cache based on the provider name, so when the provider changes behaviour we need
        # a new name:
        provider_path = f"test_lang_localized_provider_{with_default}"

        with patch.multiple(
            "faker.factory",
            import_module=MagicMock(return_value=DummyProviderModule()),
            list_module=MagicMock(return_value=("en_GB", "it_IT")),
            DEFAULT_LOCALE="ko_KR",
        ):
            test_cases = [
                (None, False),
                ("", False),
                ("ar", False),
                ("es_CO", False),
                ("en", False),
                ("en_GB", True),
                ("ar_EG", with_default),  # True if module defines a default locale
            ]
            for locale, expected_used in test_cases:
                factory = Factory.create(providers=[provider_path], locale=locale)
                assert factory.providers[0].__provider__ == provider_path
                from faker.config import DEFAULT_LOCALE

                print(f"requested locale = {locale} , DEFAULT LOCALE {DEFAULT_LOCALE}")
                expected_locale = locale if expected_used else ("ar_EG" if with_default else "ko_KR")
                assert factory.providers[0].__lang__ == expected_locale

    def test_lang_localized_provider_without_default(self):
        self.test_lang_localized_provider(with_default=False)

    def test_slugify(self):
        slug = text.slugify("a'b/c")
        assert slug == "abc"

        slug = text.slugify("àeìöú")
        assert slug == "aeiou"

        slug = text.slugify("àeì.öú")
        assert slug == "aeiou"

        slug = text.slugify("àeì.öú", allow_dots=True)
        assert slug == "aei.ou"

        slug = text.slugify("àeì.öú", allow_unicode=True)
        assert slug == "àeìöú"

        slug = text.slugify("àeì.öú", allow_unicode=True, allow_dots=True)
        assert slug == "àeì.öú"

        @decorators.slugify
        def fn(s):
            return s

        slug = fn("a'b/c")
        assert slug == "abc"

        @decorators.slugify_domain
        def fn(s):
            return s

        slug = fn("a'b/.c")
        assert slug == "ab.c"

        @decorators.slugify_unicode
        def fn(s):
            return s

        slug = fn("a'b/.cé")
        assert slug == "abcé"

    def test_binary(self):
        from faker.providers.misc import Provider

        provider = Provider(self.generator)

        for _ in range(999):
            length = random.randint(0, 2**10)
            binary = provider.binary(length)

            assert isinstance(binary, (bytes, bytearray))
            assert len(binary) == length

        for _ in range(999):
            self.generator.seed(_)
            binary1 = provider.binary(_)
            self.generator.seed(_)
            binary2 = provider.binary(_)

            assert binary1 == binary2

    def test_password(self):
        from faker.providers.misc import Provider

        provider = Provider(self.generator)

        def in_string(char, _str):
            return char in _str

        for _ in range(999):
            password = provider.password()

            assert any(in_string(char, password) for char in "!@#$%^&*()_+")
            assert any(in_string(char, password) for char in string.digits)
            assert any(in_string(char, password) for char in string.ascii_uppercase)
            assert any(in_string(char, password) for char in string.ascii_lowercase)

        with pytest.raises(AssertionError):
            provider.password(length=2)

    def test_prefix_suffix_always_string(self):
        # Locales known to contain `*_male` and `*_female`.
        for locale in ("bg_BG", "dk_DK", "en", "ru_RU", "tr_TR"):
            fake = Faker(locale=locale)
            for x in range(20):  # Probabilistic testing.
                self.assertIsInstance(fake.prefix(), str)
                self.assertIsInstance(fake.suffix(), str)

    def test_random_pystr_characters(self):
        from faker.providers.python import Provider

        provider = Provider(self.generator)

        characters = provider.pystr()
        assert len(characters) == 20
        characters = provider.pystr(max_chars=255)
        assert len(characters) == 255
        characters = provider.pystr(max_chars=0)
        assert characters == ""
        characters = provider.pystr(max_chars=-10)
        assert characters == ""
        characters = provider.pystr(min_chars=10, max_chars=255)
        assert len(characters) >= 10

    def test_random_pyfloat(self):
        from faker.providers.python import Provider

        provider = Provider(self.generator)

        assert 0 <= abs(provider.pyfloat(left_digits=1)) < 10
        assert 0 <= abs(provider.pyfloat(left_digits=0)) < 1
        x = abs(provider.pyfloat(right_digits=0))
        assert x - int(x) == 0
        with pytest.raises(ValueError):
            provider.pyfloat(left_digits=0, right_digits=0)

    def test_pyfloat_in_range(self):
        # tests for https://github.com/joke2k/faker/issues/994
        fake = Faker()

        for i in range(20):
            for min_value, max_value in [
                (0, 1),
                (-1, 1),
                (None, -5),
                (-5, None),
                (None, 5),
                (5, None),
            ]:
                fake.seed_instance(i)
                result = fake.pyfloat(min_value=min_value, max_value=max_value)
                if min_value is not None:
                    assert result >= min_value
                if max_value is not None:
                    assert result <= max_value

    def test_negative_pyfloat(self):
        # tests for https://github.com/joke2k/faker/issues/813
        fake = Faker()
        fake.seed_instance(32167)
        assert any(fake.pyfloat(left_digits=0, positive=False) < 0 for _ in range(100))
        assert any(fake.pydecimal(left_digits=0, positive=False) < 0 for _ in range(100))

    def test_arbitrary_digits_pydecimal(self):
        # tests for https://github.com/joke2k/faker/issues/1462
        fake = Faker()
        assert any(
            len(str(fake.pydecimal(left_digits=sys.float_info.dig + i))) > sys.float_info.dig for i in range(100)
        )
        assert any(len(str(fake.pydecimal())) > sys.float_info.dig for _ in range(100))

    def test_pyfloat_empty_range_error(self):
        # tests for https://github.com/joke2k/faker/issues/1048
        fake = Faker()
        fake.seed_instance(8038)
        assert fake.pyfloat(max_value=9999) < 9999

    def test_pyfloat_same_min_max(self):
        # tests for https://github.com/joke2k/faker/issues/1048
        fake = Faker()
        with pytest.raises(ValueError):
            assert fake.pyfloat(min_value=9999, max_value=9999)

    def test_instance_seed_chain(self):
        factory = Factory.create()

        names = ["Real Name0", "Real Name1", "Real Name2", "Real Name0", "Real Name2"]
        anonymized = [factory.seed_instance(name).name() for name in names]
        assert anonymized[0] == anonymized[3]
        assert anonymized[2] == anonymized[4]


if __name__ == "__main__":
    unittest.main()  # pragma: no cover