import unittest

from bot.utils.mini_app_url import append_query_params, subscription_mini_app_topup_url
from config.settings import Settings


class MiniAppUrlTests(unittest.TestCase):
    def test_append_query_params_adds_topup(self):
        self.assertEqual(
            append_query_params("https://app.example.com/home", {"topup": "regular"}),
            "https://app.example.com/home?topup=regular",
        )

    def test_append_query_params_merges_existing(self):
        self.assertEqual(
            append_query_params("https://app.example.com/?lang=ru", {"topup": "premium"}),
            "https://app.example.com/?lang=ru&topup=premium",
        )

    def test_subscription_mini_app_topup_url_none_when_unset(self):
        s = Settings(
            _env_file=None,
            BOT_TOKEN="x",
            POSTGRES_USER="u",
            POSTGRES_PASSWORD="p",
            SUBSCRIPTION_MINI_APP_URL=None,
        )
        self.assertIsNone(subscription_mini_app_topup_url(s, "regular"))

    def test_subscription_mini_app_topup_url(self):
        s = Settings(
            _env_file=None,
            BOT_TOKEN="x",
            POSTGRES_USER="u",
            POSTGRES_PASSWORD="p",
            SUBSCRIPTION_MINI_APP_URL="https://app.example.com/webapp",
        )
        self.assertEqual(
            subscription_mini_app_topup_url(s, "regular"),
            "https://app.example.com/webapp?topup=regular",
        )