"""Test the DuckDNS component."""
import asyncio
from datetime import timedelta

import pytest

from homeassistant.loader import bind_hass
from homeassistant.setup import async_setup_component
from homeassistant.components import duckdns
from homeassistant.util.dt import utcnow

from tests.common import async_fire_time_changed

DOMAIN = "bla"
TOKEN = "abcdefgh"


@bind_hass
@asyncio.coroutine
def async_set_txt(hass, txt):
    """Set the txt record. Pass in None to remove it.

    This is a legacy helper method. Do not use it for new tests.
    """
    yield from hass.services.async_call(
        duckdns.DOMAIN, duckdns.SERVICE_SET_TXT, {duckdns.ATTR_TXT: txt}, blocking=True
    )


@pytest.fixture
def setup_duckdns(hass, aioclient_mock):
    """Fixture that sets up DuckDNS."""
    aioclient_mock.get(
        duckdns.UPDATE_URL, params={"domains": DOMAIN, "token": TOKEN}, text="OK"
    )

    hass.loop.run_until_complete(
        async_setup_component(
            hass, duckdns.DOMAIN, {"duckdns": {"domain": DOMAIN, "access_token": TOKEN}}
        )
    )


@asyncio.coroutine
def test_setup(hass, aioclient_mock):
    """Test setup works if update passes."""
    aioclient_mock.get(
        duckdns.UPDATE_URL, params={"domains": DOMAIN, "token": TOKEN}, text="OK"
    )

    result = yield from async_setup_component(
        hass, duckdns.DOMAIN, {"duckdns": {"domain": DOMAIN, "access_token": TOKEN}}
    )
    assert result
    assert aioclient_mock.call_count == 1

    async_fire_time_changed(hass, utcnow() + timedelta(minutes=5))
    yield from hass.async_block_till_done()
    assert aioclient_mock.call_count == 2


@asyncio.coroutine
def test_setup_fails_if_update_fails(hass, aioclient_mock):
    """Test setup fails if first update fails."""
    aioclient_mock.get(
        duckdns.UPDATE_URL, params={"domains": DOMAIN, "token": TOKEN}, text="KO"
    )

    result = yield from async_setup_component(
        hass, duckdns.DOMAIN, {"duckdns": {"domain": DOMAIN, "access_token": TOKEN}}
    )
    assert not result
    assert aioclient_mock.call_count == 1


@asyncio.coroutine
def test_service_set_txt(hass, aioclient_mock, setup_duckdns):
    """Test set txt service call."""
    # Empty the fixture mock requests
    aioclient_mock.clear_requests()

    aioclient_mock.get(
        duckdns.UPDATE_URL,
        params={"domains": DOMAIN, "token": TOKEN, "txt": "some-txt"},
        text="OK",
    )

    assert aioclient_mock.call_count == 0
    yield from async_set_txt(hass, "some-txt")
    assert aioclient_mock.call_count == 1


@asyncio.coroutine
def test_service_clear_txt(hass, aioclient_mock, setup_duckdns):
    """Test clear txt service call."""
    # Empty the fixture mock requests
    aioclient_mock.clear_requests()

    aioclient_mock.get(
        duckdns.UPDATE_URL,
        params={"domains": DOMAIN, "token": TOKEN, "txt": "", "clear": "true"},
        text="OK",
    )

    assert aioclient_mock.call_count == 0
    yield from async_set_txt(hass, None)
    assert aioclient_mock.call_count == 1