from types import SimpleNamespace

import pytest

from app.core.config import settings
from app.services import monitoring_server_location


def test_public_ip_normalization_rejects_private_addresses():
    assert monitoring_server_location._normalize_public_ip("8.8.8.8\n") == "8.8.8.8"
    assert monitoring_server_location._normalize_public_ip("10.0.0.8") is None
    assert monitoring_server_location._normalize_public_ip("127.0.0.1") is None
    assert monitoring_server_location._normalize_public_ip("not-an-ip") is None


@pytest.mark.asyncio
async def test_server_location_is_derived_from_configured_public_ip(monkeypatch):
    monkeypatch.setattr(settings, "MONITORING_SERVER_PUBLIC_IP", "8.8.8.8")
    monkeypatch.setattr(
        monitoring_server_location,
        "resolve_ip_location",
        lambda ip: SimpleNamespace(
            location="United States / California / San Jose",
            country="United States",
            province="California",
            city="San Jose",
            isp="Google",
        ),
    )
    monitoring_server_location.reset_monitoring_server_location_cache()

    location = await monitoring_server_location.resolve_monitoring_server_location()

    assert location is not None
    assert location.name == "United States / California / San Jose"
    assert location.longitude == -121.8863
    assert location.latitude == 37.3382
    assert location.resolution_source == "configured_public_ip"
    monitoring_server_location.reset_monitoring_server_location_cache()


@pytest.mark.asyncio
async def test_server_location_returns_none_instead_of_a_hardcoded_fallback(monkeypatch):
    async def no_public_ip():
        return None, "unavailable"

    monkeypatch.setattr(monitoring_server_location, "_discover_public_ip", no_public_ip)
    monitoring_server_location.reset_monitoring_server_location_cache()

    location = await monitoring_server_location.resolve_monitoring_server_location()

    assert location is None
    monitoring_server_location.reset_monitoring_server_location_cache()