"""Tests for the Heos config flow module."""
import asyncio

from homeassistant import data_entry_flow
from homeassistant.components.heos.config_flow import HeosFlowHandler
from homeassistant.components.heos.const import DOMAIN
from homeassistant.const import CONF_HOST


async def test_flow_aborts_already_setup(hass, config_entry):
    """Test flow aborts when entry already setup."""
    config_entry.add_to_hass(hass)
    flow = HeosFlowHandler()
    flow.hass = hass
    result = await flow.async_step_user()
    assert result['type'] == data_entry_flow.RESULT_TYPE_ABORT
    assert result['reason'] == 'already_setup'


async def test_no_host_shows_form(hass):
    """Test form is shown when host not provided."""
    flow = HeosFlowHandler()
    flow.hass = hass
    result = await flow.async_step_user()
    assert result['type'] == data_entry_flow.RESULT_TYPE_FORM
    assert result['step_id'] == 'user'
    assert result['errors'] == {}


async def test_cannot_connect_shows_error_form(hass, controller):
    """Test form is shown with error when cannot connect."""
    flow = HeosFlowHandler()
    flow.hass = hass

    errors = [ConnectionError, asyncio.TimeoutError]
    for error in errors:
        controller.connect.side_effect = error
        result = await flow.async_step_user({CONF_HOST: '127.0.0.1'})
        assert result['type'] == data_entry_flow.RESULT_TYPE_FORM
        assert result['step_id'] == 'user'
        assert result['errors'][CONF_HOST] == 'connection_failure'
        assert controller.connect.call_count == 1
        assert controller.disconnect.call_count == 1
        controller.connect.reset_mock()
        controller.disconnect.reset_mock()


async def test_create_entry_when_host_valid(hass, controller):
    """Test result type is create entry when host is valid."""
    flow = HeosFlowHandler()
    flow.hass = hass
    data = {CONF_HOST: '127.0.0.1'}
    result = await flow.async_step_user(data)
    assert result['type'] == data_entry_flow.RESULT_TYPE_CREATE_ENTRY
    assert result['title'] == 'Controller (127.0.0.1)'
    assert result['data'] == data
    assert controller.connect.call_count == 1
    assert controller.disconnect.call_count == 1


async def test_create_entry_with_discovery(hass, controller, discovery_data):
    """Test discovery creates entry."""
    await hass.config_entries.flow.async_init(
                DOMAIN, context={'source': 'discovery'},
                data=discovery_data)
    await hass.async_block_till_done()
    entries = hass.config_entries.async_entries(DOMAIN)
    assert len(entries) == 1
    assert entries[0].data == {CONF_HOST: discovery_data[CONF_HOST]}
    assert entries[0].title == 'Controller (127.0.0.1)'


async def test_entry_already_exists_discovery(
        hass, controller, discovery_data, config_entry):
    """Test discovery does not create multiple entries when already setup."""
    config_entry.add_to_hass(hass)
    await hass.config_entries.flow.async_init(
                DOMAIN, context={'source': 'discovery'},
                data=discovery_data)
    await hass.async_block_till_done()
    entries = hass.config_entries.async_entries(DOMAIN)
    assert len(entries) == 1


async def test_multiple_discovery_creates_single_entry(
        hass, controller, discovery_data):
    """Test discovery of multiple devices creates a single entry."""
    hass.async_create_task(
        hass.config_entries.flow.async_init(
            DOMAIN, context={'source': 'discovery'},
            data={CONF_HOST: discovery_data}))
    hass.async_create_task(
        hass.config_entries.flow.async_init(
            DOMAIN, context={'source': 'discovery'},
            data={CONF_HOST: discovery_data}))
    await hass.async_block_till_done()
    entries = hass.config_entries.async_entries(DOMAIN)
    assert len(entries) == 1