"""Tests for the Bosch SHC entity base classes."""

from collections.abc import Generator
from unittest.mock import MagicMock, patch

import pytest

from homeassistant.components.bosch_shc.const import DOMAIN
from homeassistant.const import Platform
from homeassistant.core import HomeAssistant
from homeassistant.helpers import device_registry as dr

from .conftest import battery_only_device, setup_integration

from tests.common import MockConfigEntry

HUB_IDENTIFIER = (DOMAIN, "test-mac")


@pytest.fixture(autouse=True)
def platforms() -> Generator[None]:
    """Restrict bosch_shc setup to the binary_sensor platform."""
    with patch(
        "homeassistant.components.bosch_shc.PLATFORMS", [Platform.BINARY_SENSOR]
    ):
        yield


@pytest.fixture
def motion_device(mock_session: MagicMock) -> MagicMock:
    """The mock device backing the motion detector's battery sensor."""
    return mock_session.device_helper.motion_detectors[0]


@pytest.mark.parametrize(
    "device_buckets",
    [{"motion_detectors": [battery_only_device()]}],
    indirect=True,
)
@pytest.mark.usefixtures("mock_session")
async def test_shc_entity_via_device_id(
    hass: HomeAssistant,
    device_registry: dr.DeviceRegistry,
    motion_device: MagicMock,
    mock_config_entry: MockConfigEntry,
) -> None:
    """SHCEntity links its device to the SHC hub via via_device_id."""
    await setup_integration(hass, mock_config_entry)

    hub_device = device_registry.async_get_device_by_identifier(
        HUB_IDENTIFIER, mock_config_entry.entry_id
    )
    assert hub_device is not None

    child_device = device_registry.async_get_device_by_identifier(
        (DOMAIN, motion_device.id), mock_config_entry.entry_id
    )
    assert child_device is not None
    assert child_device.via_device_id == hub_device.id


@pytest.mark.parametrize(
    "device_buckets",
    [{"motion_detectors": [battery_only_device()]}],
    indirect=True,
)
@pytest.mark.usefixtures("mock_session")
async def test_shc_entity_via_device_id_mismatch(
    hass: HomeAssistant,
    device_registry: dr.DeviceRegistry,
    motion_device: MagicMock,
    mock_config_entry: MockConfigEntry,
) -> None:
    """Setup does not crash and skips the link when the hub identifier does not match.

    boschshcpy may render the hub identifier and a device's root_device_id
    differently, so the lookup can miss.
    """
    motion_device.root_device_id = "root-serial-mismatch"

    await setup_integration(hass, mock_config_entry)

    child_device = device_registry.async_get_device_by_identifier(
        (DOMAIN, motion_device.id), mock_config_entry.entry_id
    )
    assert child_device is not None
    assert child_device.via_device_id is None