import os
import sys
import unittest

sys.path.insert(0, os.path.dirname(__file__))

from _helpers import TempDirMixin

from app import config


class ConfigPathTests(TempDirMixin, unittest.TestCase):
    def test_make_slug_is_stable_and_safe(self):
        self.assertEqual("alias_cdb6fdbe", config.make_slug("alias"))
        self.assertEqual("my_shop_01_b92aea49", config.make_slug("My Shop 01"))

        chinese_slug = config.make_slug("台湾店铺")
        self.assertTrue(chinese_slug.startswith("account_"))
        self.assertRegex(chinese_slug, r"^account_[0-9a-f]{8}$")

        with self.assertRaises(config.ConfigPathError):
            config.make_slug("")

    def test_ensure_user_data_dir_creates_absolute_path(self):
        with self.make_temp_dir() as temp_dir:
            slug = config.make_slug("alias")
            path = config.ensure_user_data_dir(slug, root=temp_dir)
            same_path = config.ensure_user_data_dir(slug, root=temp_dir)

            self.assertEqual(path, same_path)
            self.assertTrue(os.path.isabs(path))
            self.assertTrue(os.path.isdir(path))
            self.assertEqual(slug, os.path.basename(path))

        self.assert_removed(temp_dir)

    def test_ensure_user_data_dir_rejects_unsafe_slug(self):
        with self.make_temp_dir() as temp_dir:
            for slug in ("../alias", "Alias", "a-b", ""):
                with self.subTest(slug=slug):
                    with self.assertRaises(config.ConfigPathError):
                        config.ensure_user_data_dir(slug, root=temp_dir)

        self.assert_removed(temp_dir)


if __name__ == "__main__":
    unittest.main()