"""Test for DNS IP integration Init."""

from unittest.mock import patch

from aiodns.error import DNSError
import pytest

from homeassistant.components.dnsip.const import (
    CONF_HOSTNAME,
    CONF_IPV4,
    CONF_IPV6,
    CONF_PORT_IPV6,
    CONF_RESOLVER,
    CONF_RESOLVER_IPV6,
    DEFAULT_PORT,
    DOMAIN,
)
from homeassistant.config_entries import SOURCE_USER, ConfigEntryState
from homeassistant.const import CONF_NAME, CONF_PORT
from homeassistant.core import HomeAssistant

from . import RetrieveDNS

from tests.common import MockConfigEntry


async def test_load_unload_entry(hass: HomeAssistant) -> None:
    """Test load and unload an entry."""
    entry = MockConfigEntry(
        domain=DOMAIN,
        source=SOURCE_USER,
        data={
            CONF_HOSTNAME: "home-assistant.io",
            CONF_NAME: "home-assistant.io",
            CONF_IPV4: True,
            CONF_IPV6: False,
        },
        options={
            CONF_RESOLVER: "208.67.222.222",
            CONF_RESOLVER_IPV6: "2620:119:53::53",
            CONF_PORT: 53,
            CONF_PORT_IPV6: 53,
        },
        entry_id="1",
        unique_id="home-assistant.io",
    )
    entry.add_to_hass(hass)

    with patch(
        "homeassistant.components.dnsip.aiodns.DNSResolver",
        return_value=RetrieveDNS(),
    ):
        await hass.config_entries.async_setup(entry.entry_id)
    await hass.async_block_till_done()

    assert entry.state is ConfigEntryState.LOADED
    assert await hass.config_entries.async_unload(entry.entry_id)
    await hass.async_block_till_done()
    assert entry.state is ConfigEntryState.NOT_LOADED


async def test_port_migration(
    hass: HomeAssistant,
) -> None:
    """Test migration of the config entry from no ports to with ports."""

    entry = MockConfigEntry(
        domain=DOMAIN,
        source=SOURCE_USER,
        data={
            CONF_HOSTNAME: "home-assistant.io",
            CONF_NAME: "home-assistant.io",
            CONF_IPV4: True,
            CONF_IPV6: True,
        },
        options={
            CONF_RESOLVER: "208.67.222.222",
            CONF_RESOLVER_IPV6: "2620:119:53::53",
        },
        entry_id="1",
        unique_id="home-assistant.io",
        version=1,
        minor_version=1,
    )
    entry.add_to_hass(hass)

    with patch(
        "homeassistant.components.dnsip.aiodns.DNSResolver",
        side_effect=[RetrieveDNS(), RetrieveDNS()],
    ):
        await hass.config_entries.async_setup(entry.entry_id)
        await hass.async_block_till_done()

    assert entry.version == 1
    assert entry.minor_version == 3
    assert entry.options[CONF_PORT] == DEFAULT_PORT
    assert entry.options[CONF_PORT_IPV6] == DEFAULT_PORT
    assert entry.state is ConfigEntryState.LOADED


async def test_remove_unique_id_migration(
    hass: HomeAssistant,
) -> None:
    """Test migration of the config entry removing the unique_id."""

    entry = MockConfigEntry(
        domain=DOMAIN,
        source=SOURCE_USER,
        data={
            CONF_HOSTNAME: "home-assistant.io",
            CONF_NAME: "home-assistant.io",
            CONF_IPV4: True,
            CONF_IPV6: True,
        },
        options={
            CONF_RESOLVER: "208.67.222.222",
            CONF_RESOLVER_IPV6: "2620:119:53::53",
            CONF_PORT: DEFAULT_PORT,
            CONF_PORT_IPV6: DEFAULT_PORT,
        },
        entry_id="1",
        unique_id="home-assistant.io",
        version=1,
        minor_version=2,
    )
    entry.add_to_hass(hass)

    with patch(
        "homeassistant.components.dnsip.aiodns.DNSResolver",
        side_effect=[RetrieveDNS(), RetrieveDNS()],
    ):
        await hass.config_entries.async_setup(entry.entry_id)
        await hass.async_block_till_done()

    assert entry.version == 1
    assert entry.minor_version == 3
    assert entry.unique_id is None
    assert entry.state is ConfigEntryState.LOADED


async def test_migrate_error_from_future(hass: HomeAssistant) -> None:
    """Test a future version isn't migrated."""

    entry = MockConfigEntry(
        domain=DOMAIN,
        source=SOURCE_USER,
        data={
            CONF_HOSTNAME: "home-assistant.io",
            CONF_NAME: "home-assistant.io",
            CONF_IPV4: True,
            CONF_IPV6: True,
            "some_new_data": "new_value",
        },
        options={
            CONF_RESOLVER: "208.67.222.222",
            CONF_RESOLVER_IPV6: "2620:119:53::53",
        },
        entry_id="1",
        unique_id="home-assistant.io",
        version=2,
        minor_version=1,
    )
    entry.add_to_hass(hass)

    with patch(
        "homeassistant.components.dnsip.aiodns.DNSResolver",
        return_value=RetrieveDNS(),
    ):
        await hass.config_entries.async_setup(entry.entry_id)
        await hass.async_block_till_done()

    entry = hass.config_entries.async_get_entry(entry.entry_id)
    assert entry.state is ConfigEntryState.MIGRATION_ERROR


@pytest.mark.parametrize(
    "error",
    [
        TimeoutError(),
        DNSError(),
    ],
)
async def test_setup_dns_error(hass: HomeAssistant, error: Exception) -> None:
    """Test setup raises ConfigEntryNotReady when DNS lookup fails."""

    entry = MockConfigEntry(
        domain=DOMAIN,
        source=SOURCE_USER,
        data={
            CONF_HOSTNAME: "home-assistant.io",
            CONF_NAME: "home-assistant.io",
            CONF_IPV4: True,
            CONF_IPV6: False,
        },
        options={
            CONF_RESOLVER: "208.67.222.222",
            CONF_RESOLVER_IPV6: "2620:119:53::53",
            CONF_PORT: 53,
            CONF_PORT_IPV6: 53,
        },
        entry_id="1",
        unique_id="home-assistant.io",
    )
    entry.add_to_hass(hass)

    with patch(
        "homeassistant.components.dnsip.aiodns.DNSResolver",
        return_value=RetrieveDNS(error=error),
    ):
        await hass.config_entries.async_setup(entry.entry_id)
        await hass.async_block_till_done()

    assert entry.state is ConfigEntryState.SETUP_RETRY


async def test_setup_ipv6_only(hass: HomeAssistant) -> None:
    """Test setup with only IPv6 enabled creates only the IPv6 entity."""

    entry = MockConfigEntry(
        domain=DOMAIN,
        source=SOURCE_USER,
        data={
            CONF_HOSTNAME: "home-assistant.io",
            CONF_NAME: "home-assistant.io",
            CONF_IPV4: False,
            CONF_IPV6: True,
        },
        options={
            CONF_RESOLVER: "208.67.222.222",
            CONF_RESOLVER_IPV6: "2620:119:53::53",
            CONF_PORT: 53,
            CONF_PORT_IPV6: 53,
        },
        entry_id="1",
        unique_id="home-assistant.io",
    )
    entry.add_to_hass(hass)

    with patch(
        "homeassistant.components.dnsip.aiodns.DNSResolver",
        return_value=RetrieveDNS(),
    ):
        await hass.config_entries.async_setup(entry.entry_id)
        await hass.async_block_till_done()

    assert entry.state is ConfigEntryState.LOADED
    assert hass.states.get("sensor.home_assistant_io_ipv6") is not None
    assert hass.states.get("sensor.home_assistant_io") is None


async def test_setup_dns_timeout(hass: HomeAssistant) -> None:
    """Test setup raises ConfigEntryNotReady when DNS lookup times out."""

    entry = MockConfigEntry(
        domain=DOMAIN,
        source=SOURCE_USER,
        data={
            CONF_HOSTNAME: "home-assistant.io",
            CONF_NAME: "home-assistant.io",
            CONF_IPV4: True,
            CONF_IPV6: False,
        },
        options={
            CONF_RESOLVER: "208.67.222.222",
            CONF_RESOLVER_IPV6: "2620:119:53::53",
            CONF_PORT: 53,
            CONF_PORT_IPV6: 53,
        },
        entry_id="1",
        unique_id="home-assistant.io",
    )
    entry.add_to_hass(hass)

    with (
        patch(
            "homeassistant.components.dnsip.aiodns.DNSResolver",
            return_value=RetrieveDNS(),
        ),
        patch(
            "homeassistant.components.dnsip.asyncio.timeout",
            side_effect=TimeoutError(),
        ),
    ):
        await hass.config_entries.async_setup(entry.entry_id)
        await hass.async_block_till_done()

    assert entry.state is ConfigEntryState.SETUP_RETRY