import pytest

from apps.users.services import auth


pytestmark = pytest.mark.unit


def test_otp_normalizes_persian_digits_and_rejects_wrong_length():
    assert auth._normalize_otp_code(" ۱۲۳۴۵ ") == "12345"
    with pytest.raises(auth.AuthServiceError) as error:
        auth._normalize_otp_code("1234")
    assert error.value.field == "code"


def test_otp_is_single_use(fake_redis, monkeypatch):
    monkeypatch.setattr(auth, "_redis", lambda: fake_redis)
    fake_redis.set(auth._otp_key("login", "09190000001"), "12345")
    auth.verify_otp_code(mobile="09190000001", code="12345", mode="login")
    assert fake_redis.get(auth._otp_key("login", "09190000001")) is None
    with pytest.raises(auth.AuthServiceError):
        auth.verify_otp_code(mobile="09190000001", code="12345", mode="login")


def test_otp_issue_stores_code_and_queues_sms(fake_redis, monkeypatch, mocker):
    monkeypatch.setattr(auth, "_redis", lambda: fake_redis)
    send_sms = mocker.patch("apps.users.services.auth.send_critical_sms.delay")
    result = auth._issue_otp("09190000001", "register")
    stored = fake_redis.get(auth._otp_key("register", "09190000001"))
    assert stored and len(stored) == 5
    send_sms.assert_called_once_with("09190000001", auth.SMS_KIND_REGISTER, stored.decode())
    assert result["expires_in_seconds"] == auth.OTP_EXPIRY_SECONDS


def test_verified_otp_is_consumed_once(fake_redis, monkeypatch):
    monkeypatch.setattr(auth, "_redis", lambda: fake_redis)
    key = auth._verified_otp_key("register", "09190000001")
    fake_redis.set(key, "1")
    assert auth._consume_verified_otp("09190000001", "register")
    assert not auth._consume_verified_otp("09190000001", "register")