"""Tests for the Velbus config flow."""
from unittest.mock import patch, Mock

import pytest

from homeassistant import data_entry_flow
from homeassistant.components.velbus import config_flow
from homeassistant.const import CONF_PORT, CONF_NAME

from tests.common import MockConfigEntry

PORT_SERIAL = '/dev/ttyACME100'
PORT_TCP = '127.0.1.0.1:3788'


@pytest.fixture(name='controller_assert')
def mock_controller_assert():
    """Mock the velbus controller with an assert."""
    with patch('velbus.Controller', side_effect=Exception()):
        yield


@pytest.fixture(name='controller')
def mock_controller():
    """Mock a successfull velbus controller."""
    controller = Mock()
    with patch('velbus.Controller', return_value=controller):
        yield controller


def init_config_flow(hass):
    """Init a configuration flow."""
    flow = config_flow.VelbusConfigFlow()
    flow.hass = hass
    return flow


async def test_user(hass, controller):
    """Test user config."""
    flow = init_config_flow(hass)

    result = await flow.async_step_user()
    assert result['type'] == data_entry_flow.RESULT_TYPE_FORM
    assert result['step_id'] == 'user'

    result = await flow.async_step_user({
        CONF_NAME: 'Velbus Test Serial', CONF_PORT: PORT_SERIAL})
    assert result['type'] == data_entry_flow.RESULT_TYPE_CREATE_ENTRY
    assert result['title'] == 'velbus_test_serial'
    assert result['data'][CONF_PORT] == PORT_SERIAL

    result = await flow.async_step_user({
        CONF_NAME: 'Velbus Test TCP', CONF_PORT: PORT_TCP})
    assert result['type'] == data_entry_flow.RESULT_TYPE_CREATE_ENTRY
    assert result['title'] == 'velbus_test_tcp'
    assert result['data'][CONF_PORT] == PORT_TCP


async def test_user_fail(hass, controller_assert):
    """Test user config."""
    flow = init_config_flow(hass)

    result = await flow.async_step_user({
        CONF_NAME: 'Velbus Test Serial', CONF_PORT: PORT_SERIAL})
    assert result['type'] == data_entry_flow.RESULT_TYPE_FORM
    assert result['errors'] == {CONF_PORT: 'connection_failed'}

    result = await flow.async_step_user({
        CONF_NAME: 'Velbus Test TCP', CONF_PORT: PORT_TCP})
    assert result['type'] == data_entry_flow.RESULT_TYPE_FORM
    assert result['errors'] == {CONF_PORT: 'connection_failed'}


async def test_import(hass, controller):
    """Test import step."""
    flow = init_config_flow(hass)

    result = await flow.async_step_import({CONF_PORT: PORT_TCP})
    assert result['type'] == data_entry_flow.RESULT_TYPE_CREATE_ENTRY
    assert result['title'] == 'velbus_import'


async def test_abort_if_already_setup(hass):
    """Test we abort if Daikin is already setup."""
    flow = init_config_flow(hass)
    MockConfigEntry(domain='velbus',
                    data={CONF_PORT: PORT_TCP,
                          CONF_NAME: 'velbus home'}).add_to_hass(hass)

    result = await flow.async_step_import(
        {CONF_PORT: PORT_TCP, CONF_NAME: 'velbus import test'})
    assert result['type'] == data_entry_flow.RESULT_TYPE_ABORT
    assert result['reason'] == 'port_exists'

    result = await flow.async_step_user(
        {CONF_PORT: PORT_TCP, CONF_NAME: 'velbus import test'})
    assert result['type'] == data_entry_flow.RESULT_TYPE_FORM
    assert result['errors'] == {'port': 'port_exists'}