"""The tests for the Input select component."""
# pylint: disable=protected-access
import asyncio

from homeassistant.loader import bind_hass
from homeassistant.components.input_select import (
    ATTR_OPTION, ATTR_OPTIONS, DOMAIN, SERVICE_SET_OPTIONS,
    SERVICE_SELECT_NEXT, SERVICE_SELECT_OPTION, SERVICE_SELECT_PREVIOUS)
from homeassistant.const import (
    ATTR_ENTITY_ID, ATTR_FRIENDLY_NAME, ATTR_ICON)
from homeassistant.core import State, Context
from homeassistant.setup import async_setup_component

from tests.common import mock_restore_cache


@bind_hass
def select_option(hass, entity_id, option):
    """Set value of input_select.

    This is a legacy helper method. Do not use it for new tests.
    """
    hass.async_create_task(hass.services.async_call(
        DOMAIN, SERVICE_SELECT_OPTION, {
            ATTR_ENTITY_ID: entity_id,
            ATTR_OPTION: option,
        }))


@bind_hass
def select_next(hass, entity_id):
    """Set next value of input_select.

    This is a legacy helper method. Do not use it for new tests.
    """
    hass.async_create_task(hass.services.async_call(
        DOMAIN, SERVICE_SELECT_NEXT, {
            ATTR_ENTITY_ID: entity_id,
        }))


@bind_hass
def select_previous(hass, entity_id):
    """Set previous value of input_select.

    This is a legacy helper method. Do not use it for new tests.
    """
    hass.async_create_task(hass.services.async_call(
        DOMAIN, SERVICE_SELECT_PREVIOUS, {
            ATTR_ENTITY_ID: entity_id,
        }))


async def test_config(hass):
    """Test config."""
    invalid_configs = [
        None,
        {},
        {'name with space': None},
        # {'bad_options': {'options': None}},
        {'bad_initial': {
            'options': [1, 2],
            'initial': 3,
        }},
    ]

    for cfg in invalid_configs:
        assert not await async_setup_component(hass, DOMAIN, {DOMAIN: cfg})


async def test_select_option(hass):
    """Test select_option methods."""
    assert await async_setup_component(hass, DOMAIN, {DOMAIN: {
            'test_1': {
                'options': [
                    'some option',
                    'another option',
                ],
            },
        }})
    entity_id = 'input_select.test_1'

    state = hass.states.get(entity_id)
    assert 'some option' == state.state

    select_option(hass, entity_id, 'another option')
    await hass.async_block_till_done()

    state = hass.states.get(entity_id)
    assert 'another option' == state.state

    select_option(hass, entity_id, 'non existing option')
    await hass.async_block_till_done()

    state = hass.states.get(entity_id)
    assert 'another option' == state.state


async def test_select_next(hass):
    """Test select_next methods."""
    assert await async_setup_component(hass, DOMAIN, {DOMAIN: {
            'test_1': {
                'options': [
                    'first option',
                    'middle option',
                    'last option',
                ],
                'initial': 'middle option',
            },
        }})
    entity_id = 'input_select.test_1'

    state = hass.states.get(entity_id)
    assert 'middle option' == state.state

    select_next(hass, entity_id)
    await hass.async_block_till_done()

    state = hass.states.get(entity_id)
    assert 'last option' == state.state

    select_next(hass, entity_id)
    await hass.async_block_till_done()

    state = hass.states.get(entity_id)
    assert 'first option' == state.state


async def test_select_previous(hass):
    """Test select_previous methods."""
    assert await async_setup_component(hass, DOMAIN, {DOMAIN: {
            'test_1': {
                'options': [
                    'first option',
                    'middle option',
                    'last option',
                ],
                'initial': 'middle option',
            },
        }})
    entity_id = 'input_select.test_1'

    state = hass.states.get(entity_id)
    assert 'middle option' == state.state

    select_previous(hass, entity_id)
    await hass.async_block_till_done()

    state = hass.states.get(entity_id)
    assert 'first option' == state.state

    select_previous(hass, entity_id)
    await hass.async_block_till_done()

    state = hass.states.get(entity_id)
    assert 'last option' == state.state


async def test_config_options(hass):
    """Test configuration options."""
    count_start = len(hass.states.async_entity_ids())

    test_2_options = [
        'Good Option',
        'Better Option',
        'Best Option',
    ]

    assert await async_setup_component(hass, DOMAIN, {
        DOMAIN: {
            'test_1': {
                'options': [
                    1,
                    2,
                ],
            },
            'test_2': {
                'name': 'Hello World',
                'icon': 'mdi:work',
                'options': test_2_options,
                'initial': 'Better Option',
            },
        }
    })

    assert count_start + 2 == len(hass.states.async_entity_ids())

    state_1 = hass.states.get('input_select.test_1')
    state_2 = hass.states.get('input_select.test_2')

    assert state_1 is not None
    assert state_2 is not None

    assert '1' == state_1.state
    assert ['1', '2'] == \
        state_1.attributes.get(ATTR_OPTIONS)
    assert ATTR_ICON not in state_1.attributes

    assert 'Better Option' == state_2.state
    assert test_2_options == \
        state_2.attributes.get(ATTR_OPTIONS)
    assert 'Hello World' == \
        state_2.attributes.get(ATTR_FRIENDLY_NAME)
    assert 'mdi:work' == state_2.attributes.get(ATTR_ICON)


async def test_set_options_service(hass):
    """Test set_options service."""
    assert await async_setup_component(hass, DOMAIN, {DOMAIN: {
            'test_1': {
                'options': [
                    'first option',
                    'middle option',
                    'last option',
                ],
                'initial': 'middle option',
            },
        }})
    entity_id = 'input_select.test_1'

    state = hass.states.get(entity_id)
    assert 'middle option' == state.state

    data = {ATTR_OPTIONS: ["test1", "test2"], "entity_id": entity_id}
    await hass.services.async_call(DOMAIN, SERVICE_SET_OPTIONS, data)
    await hass.async_block_till_done()

    state = hass.states.get(entity_id)
    assert 'test1' == state.state

    select_option(hass, entity_id, 'first option')
    await hass.async_block_till_done()
    state = hass.states.get(entity_id)
    assert 'test1' == state.state

    select_option(hass, entity_id, 'test2')
    await hass.async_block_till_done()
    state = hass.states.get(entity_id)
    assert 'test2' == state.state


@asyncio.coroutine
def test_restore_state(hass):
    """Ensure states are restored on startup."""
    mock_restore_cache(hass, (
        State('input_select.s1', 'last option'),
        State('input_select.s2', 'bad option'),
    ))

    options = {
        'options': [
            'first option',
            'middle option',
            'last option',
        ],
    }

    yield from async_setup_component(hass, DOMAIN, {
        DOMAIN: {
            's1': options,
            's2': options,
        }})

    state = hass.states.get('input_select.s1')
    assert state
    assert state.state == 'last option'

    state = hass.states.get('input_select.s2')
    assert state
    assert state.state == 'first option'


@asyncio.coroutine
def test_initial_state_overrules_restore_state(hass):
    """Ensure states are restored on startup."""
    mock_restore_cache(hass, (
        State('input_select.s1', 'last option'),
        State('input_select.s2', 'bad option'),
    ))

    options = {
        'options': [
            'first option',
            'middle option',
            'last option',
        ],
        'initial': 'middle option',
    }

    yield from async_setup_component(hass, DOMAIN, {
        DOMAIN: {
            's1': options,
            's2': options,
        }})

    state = hass.states.get('input_select.s1')
    assert state
    assert state.state == 'middle option'

    state = hass.states.get('input_select.s2')
    assert state
    assert state.state == 'middle option'


async def test_input_select_context(hass, hass_admin_user):
    """Test that input_select context works."""
    assert await async_setup_component(hass, 'input_select', {
        'input_select': {
            's1': {
                'options': [
                    'first option',
                    'middle option',
                    'last option',
                ],
            }
        }
    })

    state = hass.states.get('input_select.s1')
    assert state is not None

    await hass.services.async_call('input_select', 'select_next', {
        'entity_id': state.entity_id,
    }, True, Context(user_id=hass_admin_user.id))

    state2 = hass.states.get('input_select.s1')
    assert state2 is not None
    assert state.state != state2.state
    assert state2.context.user_id == hass_admin_user.id