"""Tests for all devices."""

from __future__ import annotations

import importlib
import inspect
import pkgutil
import sys
import zoneinfo
from contextlib import AbstractContextManager, nullcontext
from unittest.mock import AsyncMock, patch

import pytest
from pytest_mock import MockerFixture

import kasa
from kasa import Credentials, Device, DeviceConfig, DeviceType, KasaException, Module
from kasa.iot import (
    IotBulb,
    IotCamera,
    IotDevice,
    IotDimmer,
    IotLightStrip,
    IotPlug,
    IotStrip,
    IotWallSwitch,
)
from kasa.iot.iottimezone import (
    TIMEZONE_INDEX,
    get_timezone,
    get_timezone_index,
)
from kasa.iot.modules import IotLightPreset
from kasa.smart import SmartChildDevice, SmartDevice
from kasa.smartcam import SmartCamChild, SmartCamDevice


def _get_subclasses(of_class: type):
    package = sys.modules["kasa"]
    subclasses = set()
    for _, modname, _ in pkgutil.iter_modules(package.__path__):
        importlib.import_module("." + modname, package="kasa")
        module = sys.modules["kasa." + modname]
        for name, obj in inspect.getmembers(module):
            if (
                inspect.isclass(obj)
                and issubclass(obj, of_class)
                and module.__package__ is not None
                and module.__package__ != "kasa"
                and module.__package__ != "kasa.interfaces"
            ):
                subclasses.add((module.__package__ + "." + name, obj))
    return sorted(subclasses)


device_classes = pytest.mark.parametrize(
    "device_class_name_obj", _get_subclasses(Device), ids=lambda t: t[0]
)


async def test_device_id(dev: Device) -> None:
    """Test all devices have a device id."""
    assert dev.device_id


async def test_alias(dev: Device) -> None:
    test_alias = "TEST1234"
    original = dev.alias

    assert isinstance(original, str | None)
    await dev.set_alias(test_alias)
    await dev.update()
    assert dev.alias == test_alias

    # If alias is None set it back to empty string
    await dev.set_alias(original or "")
    await dev.update()
    assert dev.alias == original


async def test_supports_module(dev: Device, mocker: MockerFixture) -> None:
    """Test modules of the device are supported without querying the device."""
    spy = mocker.spy(dev.protocol, "query")

    assert await dev.supports_module("not_a_module") is False
    for name in dev.modules:
        assert await dev.supports_module(name) is True
    spy.assert_not_called()


@device_classes
async def test_device_class_ctors(device_class_name_obj) -> None:
    """Make sure constructor api not broken for new and existing SmartDevices."""
    host = "127.0.0.2"
    port = 1234
    credentials = Credentials("foo", "bar")
    config = DeviceConfig(host, port_override=port, credentials=credentials)
    klass = device_class_name_obj[1]
    if issubclass(klass, SmartChildDevice | SmartCamChild):
        parent = SmartDevice(host, config=config)
        smartcam_required = {
            "device_model": "foo",
            "device_type": "SMART.TAPODOORBELL",
            "alias": "Foo",
            "sw_ver": "1.1",
            "hw_ver": "1.0",
            "mac": "1.2.3.4",
            "hwId": "hw_id",
            "oem_id": "oem_id",
        }
        dev = klass(
            parent,
            {"dummy": "info", "device_id": "dummy", **smartcam_required},
            {
                "component_list": [{"id": "device", "ver_code": 1}],
                "app_component_list": [{"name": "device", "version": 1}],
            },
        )
    else:
        dev = klass(host, config=config)
    assert dev.host == host
    assert dev.port == port
    assert dev.credentials == credentials


@device_classes
async def test_device_class_repr(device_class_name_obj) -> None:
    """Test device repr when update() not called and no discovery info."""
    host = "127.0.0.2"
    port = 1234
    credentials = Credentials("foo", "bar")
    config = DeviceConfig(host, port_override=port, credentials=credentials)
    klass = device_class_name_obj[1]
    if issubclass(klass, SmartChildDevice | SmartCamChild):
        parent = SmartDevice(host, config=config)
        dev = klass(
            parent,
            {"dummy": "info", "device_id": "dummy"},
            {
                "component_list": [{"id": "device", "ver_code": 1}],
                "app_component_list": [{"name": "device", "version": 1}],
            },
        )
    else:
        dev = klass(host, config=config)

    CLASS_TO_DEFAULT_TYPE = {
        IotDevice: DeviceType.Unknown,
        IotBulb: DeviceType.Bulb,
        IotPlug: DeviceType.Plug,
        IotDimmer: DeviceType.Dimmer,
        IotStrip: DeviceType.Strip,
        IotWallSwitch: DeviceType.WallSwitch,
        IotLightStrip: DeviceType.LightStrip,
        IotCamera: DeviceType.Camera,
        SmartChildDevice: DeviceType.Unknown,
        SmartDevice: DeviceType.Unknown,
        SmartCamDevice: DeviceType.Unknown,
        SmartCamChild: DeviceType.Unknown,
    }
    type_ = CLASS_TO_DEFAULT_TYPE[klass]
    child_repr = "<DeviceType.Unknown(child) of <DeviceType.Unknown at 127.0.0.2 - update() needed>>"
    not_child_repr = f"<{type_} at 127.0.0.2 - update() needed>"
    expected_repr = (
        child_repr if klass in {SmartChildDevice, SmartCamChild} else not_child_repr
    )
    assert repr(dev) == expected_repr


async def test_create_device_with_timeout() -> None:
    """Make sure timeout is passed to the protocol."""
    host = "127.0.0.1"
    dev: Device = IotDevice(host, config=DeviceConfig(host, timeout=100))
    assert dev.protocol._transport._timeout == 100
    dev = SmartDevice(host, config=DeviceConfig(host, timeout=100))
    assert dev.protocol._transport._timeout == 100


async def test_create_thin_wrapper() -> None:
    """Make sure thin wrapper is created with the correct device type."""
    mock = AsyncMock()
    config = DeviceConfig(
        host="test_host",
        port_override=1234,
        timeout=100,
        credentials=Credentials("username", "password"),
    )
    with patch("kasa.device_factory.connect", return_value=mock) as connect:
        dev = await Device.connect(config=config)
        assert dev is mock

    connect.assert_called_once_with(
        host=None,
        config=config,
    )


@pytest.mark.parametrize(
    ("device_class", "use_class"), kasa.deprecated_smart_devices.items()
)
def test_deprecated_devices(device_class, use_class) -> None:
    package_name = ".".join(use_class.__module__.split(".")[:-1])
    msg = f"{device_class} is deprecated, use {use_class.__name__} from package {package_name} instead"
    with pytest.deprecated_call(match=msg):
        getattr(kasa, device_class)
    packages = package_name.split(".")
    module = __import__(packages[0])
    for _ in packages[1:]:
        module = importlib.import_module(package_name, package=module.__name__)
    getattr(module, use_class.__name__)


@pytest.mark.parametrize(
    ("deprecated_class", "use_class"), kasa.deprecated_classes.items()
)
def test_deprecated_classes(deprecated_class, use_class) -> None:
    msg = f"{deprecated_class} is deprecated, use {use_class.__name__} instead"
    with pytest.deprecated_call(match=msg):
        getattr(kasa, deprecated_class)
    getattr(kasa, use_class.__name__)


deprecated_is_device_type = {
    "is_bulb": DeviceType.Bulb,
    "is_plug": DeviceType.Plug,
    "is_dimmer": DeviceType.Dimmer,
    "is_light_strip": DeviceType.LightStrip,
    "is_wallswitch": DeviceType.WallSwitch,
    "is_strip": DeviceType.Strip,
    "is_strip_socket": DeviceType.StripSocket,
}
deprecated_warns_before_attribute_error = {
    "has_effects",
    "is_color",
    "is_dimmable",
    "is_variable_color_temp",
    "valid_temperature_range",
}
deprecated_is_light_function_smart_module = {
    "is_color": "Color",
    "is_dimmable": "Brightness",
    "is_variable_color_temp": "ColorTemperature",
}


def test_deprecated_device_type_attributes(dev: SmartDevice):
    """Test deprecated attributes on all devices."""

    def _test_attr(attribute: str):
        msg = f"{attribute} is deprecated"
        if module := Device._deprecated_device_type_attributes[attribute][0]:
            msg += f", use: {module} in device.modules instead"
        with pytest.deprecated_call(match=msg):
            val = getattr(dev, attribute)
        return val

    for attribute in deprecated_is_device_type:
        val = _test_attr(attribute)
        expected_val = dev.device_type == deprecated_is_device_type[attribute]
        assert val == expected_val


async def _test_attribute(
    dev: Device,
    attribute_name: str,
    is_expected: bool,
    module_name: str | None,
    *args: object,
    will_raise: type[Exception] | None = None,
) -> None:
    will_warn = is_expected or attribute_name in deprecated_warns_before_attribute_error

    if will_raise:
        ctx: AbstractContextManager | nullcontext = pytest.raises(will_raise)
        dep_context: pytest.WarningsRecorder | nullcontext
    elif is_expected:
        ctx = nullcontext()
    else:
        ctx = pytest.raises(
            AttributeError, match=f"Device has no attribute '{attribute_name}'"
        )

    if will_warn:
        dep_context = pytest.deprecated_call(
            match=(f"{attribute_name} is deprecated, use:")
        )
    else:
        dep_context = nullcontext()

    with dep_context, ctx:
        if args:
            await getattr(dev, attribute_name)(*args)
        else:
            attribute_val = getattr(dev, attribute_name)
            assert attribute_val is not None


async def test_deprecated_light_effect_attributes(dev: Device) -> None:
    light_effect = dev.modules.get(Module.LightEffect)

    await _test_attribute(dev, "effect", bool(light_effect), "LightEffect")
    await _test_attribute(dev, "effect_list", bool(light_effect), "LightEffect")
    await _test_attribute(dev, "set_effect", bool(light_effect), "LightEffect", "Off")
    exc = (
        NotImplementedError
        if light_effect and not light_effect.has_custom_effects
        else None
    )
    await _test_attribute(
        dev,
        "set_custom_effect",
        bool(light_effect),
        "LightEffect",
        {"enable": 0, "name": "foo", "id": "bar"},
        will_raise=exc,
    )


async def test_deprecated_light_attributes(dev: Device) -> None:
    light = dev.modules.get(Module.Light)

    await _test_attribute(dev, "is_dimmable", bool(light), "Light")
    await _test_attribute(dev, "is_color", bool(light), "Light")
    await _test_attribute(dev, "is_variable_color_temp", bool(light), "Light")

    exc = KasaException if light and not light.has_feature("brightness") else None
    await _test_attribute(dev, "brightness", bool(light), "Light", will_raise=exc)
    await _test_attribute(
        dev, "set_brightness", bool(light), "Light", 50, will_raise=exc
    )

    exc = KasaException if light and not light.has_feature("hsv") else None
    await _test_attribute(dev, "hsv", bool(light), "Light", will_raise=exc)
    await _test_attribute(
        dev, "set_hsv", bool(light), "Light", 50, 50, 50, will_raise=exc
    )

    exc = KasaException if light and not light.has_feature("color_temp") else None
    await _test_attribute(dev, "color_temp", bool(light), "Light", will_raise=exc)
    await _test_attribute(
        dev, "set_color_temp", bool(light), "Light", 2700, will_raise=exc
    )
    await _test_attribute(
        dev, "valid_temperature_range", bool(light), "Light", will_raise=exc
    )

    await _test_attribute(dev, "has_effects", bool(light), "Light")


async def test_deprecated_other_attributes(dev: Device) -> None:
    led_module = dev.modules.get(Module.Led)

    await _test_attribute(dev, "led", bool(led_module), "Led")
    await _test_attribute(dev, "set_led", bool(led_module), "Led", True)
    await _test_attribute(dev, "supported_modules", True, None)


async def test_deprecated_emeter_attributes(dev: Device) -> None:
    energy_module = dev.modules.get(Module.Energy)

    await _test_attribute(dev, "get_emeter_realtime", bool(energy_module), "Energy")
    await _test_attribute(dev, "emeter_realtime", bool(energy_module), "Energy")
    await _test_attribute(dev, "emeter_today", bool(energy_module), "Energy")
    await _test_attribute(dev, "emeter_this_month", bool(energy_module), "Energy")
    await _test_attribute(dev, "current_consumption", bool(energy_module), "Energy")
    await _test_attribute(dev, "get_emeter_daily", bool(energy_module), "Energy")
    await _test_attribute(dev, "get_emeter_monthly", bool(energy_module), "Energy")


async def test_deprecated_light_preset_attributes(dev: Device) -> None:
    preset = dev.modules.get(Module.LightPreset)

    exc: type[AttributeError] | type[KasaException] | None = (
        AttributeError if not preset else None
    )
    await _test_attribute(dev, "presets", bool(preset), "LightPreset", will_raise=exc)

    exc = None
    is_expected = bool(preset)
    # deprecated save_preset not implemented for smart devices as it's unlikely anyone
    # has an existing reliance on this for the newer devices.
    if isinstance(dev, SmartDevice):
        is_expected = False

    if preset and len(preset.preset_states_list) == 0:
        exc = KasaException

    await _test_attribute(
        dev,
        "save_preset",
        is_expected,
        "LightPreset",
        IotLightPreset(index=0, hue=100, brightness=100, saturation=0, color_temp=0),  # type: ignore[call-arg]
        will_raise=exc,
    )


async def test_device_type_aliases():
    """Test that the device type aliases in Device work."""

    def _mock_connect(config: DeviceConfig, *args, **kwargs):
        mock = AsyncMock()
        mock.config = config
        return mock

    with patch("kasa.device_factory.connect", side_effect=_mock_connect):
        dev = await Device.connect(
            config=Device.Config(
                host="127.0.0.1",
                credentials=Device.Credentials(username="user", password="foobar"),  # noqa: S106
                connection_type=Device.ConnectionParameters(
                    device_family=Device.Family.SmartKasaPlug,
                    encryption_type=Device.EncryptionType.Klap,
                    login_version=2,
                ),
            )
        )
        assert isinstance(dev.config, DeviceConfig)
        assert DeviceType.Dimmer == Device.Type.Dimmer


async def test_device_timezones() -> None:
    """Test the timezone data is good."""
    # Check all indexes return a zoneinfo
    for i in range(110):
        tz = await get_timezone(i)
        assert tz
        assert tz != zoneinfo.ZoneInfo("Etc/UTC"), f"{i} is default Etc/UTC"

    # Check an unexpected index returns a UTC default.
    tz = await get_timezone(110)
    assert tz == zoneinfo.ZoneInfo("Etc/UTC")

    # Get an index from a timezone
    for index, zone in TIMEZONE_INDEX.items():
        zone_info = zoneinfo.ZoneInfo(zone)
        found_index = await get_timezone_index(zone_info)
        assert found_index == index

    # Try a timezone not hardcoded finds another match
    index = await get_timezone_index(zoneinfo.ZoneInfo("Asia/Katmandu"))
    assert index == 77

    # Try a timezone not hardcoded no match
    with pytest.raises(zoneinfo.ZoneInfoNotFoundError):
        await get_timezone_index(zoneinfo.ZoneInfo("Foo/bar"))