"""Эвристика «физических» сетевых интерфейсов для дашборда."""

import importlib.util
import sys
import unittest
from pathlib import Path

_ROOT = Path(__file__).resolve().parents[1]
_SPEC = importlib.util.spec_from_file_location(
    "wesp_admin_system_metrics_testonly",
    _ROOT / "app" / "services" / "admin_system_metrics.py",
)
assert _SPEC and _SPEC.loader
_mod = importlib.util.module_from_spec(_SPEC)
_SPEC.loader.exec_module(_mod)
network_interface_is_physical = _mod.network_interface_is_physical


class NetworkInterfacePhysicalTests(unittest.TestCase):
    def test_always_treated_as_virtual(self) -> None:
        self.assertFalse(network_interface_is_physical("lo"))
        self.assertFalse(network_interface_is_physical("lo0"))
        self.assertFalse(network_interface_is_physical("docker0"))
        self.assertFalse(network_interface_is_physical("veth0abc1"))
        self.assertFalse(network_interface_is_physical("br-4e2d9a"))
        self.assertFalse(network_interface_is_physical("br0"))
        self.assertFalse(network_interface_is_physical("virbr0"))

    @unittest.skipUnless(sys.platform.startswith("linux"), "имена eth*/wlan* — ветка Linux")
    def test_linux_common_nic_names_match_regex_fallback(self) -> None:
        self.assertTrue(network_interface_is_physical("eth0"))
        self.assertTrue(network_interface_is_physical("enp2s0"))
        self.assertTrue(network_interface_is_physical("wlan0"))
        self.assertTrue(network_interface_is_physical("bond0"))
        self.assertTrue(network_interface_is_physical("team0"))

    @unittest.skipUnless(sys.platform == "darwin", "на macOS физические в основном en*")
    def test_darwin_en(self) -> None:
        self.assertTrue(network_interface_is_physical("en0"))
        self.assertFalse(network_interface_is_physical("bridge0"))


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