"""Define tests for the SimpliSafe config flow."""
import json
from datetime import timedelta
from unittest.mock import mock_open, patch, MagicMock, PropertyMock

from homeassistant import data_entry_flow
from homeassistant.components.simplisafe import DOMAIN, config_flow
from homeassistant.const import (
    CONF_PASSWORD, CONF_SCAN_INTERVAL, CONF_TOKEN, CONF_USERNAME)

from tests.common import MockConfigEntry, mock_coro


def mock_api():
    """Mock SimpliSafe API class."""
    api = MagicMock()
    type(api).refresh_token = PropertyMock(return_value='12345abc')
    return api


async def test_duplicate_error(hass):
    """Test that errors are shown when duplicates are added."""
    conf = {
        CONF_USERNAME: 'user@email.com',
        CONF_PASSWORD: 'password',
    }

    MockConfigEntry(domain=DOMAIN, data=conf).add_to_hass(hass)
    flow = config_flow.SimpliSafeFlowHandler()
    flow.hass = hass

    result = await flow.async_step_user(user_input=conf)
    assert result['errors'] == {CONF_USERNAME: 'identifier_exists'}


async def test_invalid_credentials(hass):
    """Test that invalid credentials throws an error."""
    from simplipy.errors import SimplipyError
    conf = {
        CONF_USERNAME: 'user@email.com',
        CONF_PASSWORD: 'password',
    }

    flow = config_flow.SimpliSafeFlowHandler()
    flow.hass = hass

    with patch('simplipy.API.login_via_credentials',
               return_value=mock_coro(exception=SimplipyError)):
        result = await flow.async_step_user(user_input=conf)
        assert result['errors'] == {'base': 'invalid_credentials'}


async def test_show_form(hass):
    """Test that the form is served with no input."""
    flow = config_flow.SimpliSafeFlowHandler()
    flow.hass = hass

    result = await flow.async_step_user(user_input=None)

    assert result['type'] == data_entry_flow.RESULT_TYPE_FORM
    assert result['step_id'] == 'user'


async def test_step_import(hass):
    """Test that the import step works."""
    conf = {
        CONF_USERNAME: 'user@email.com',
        CONF_PASSWORD: 'password',
    }

    flow = config_flow.SimpliSafeFlowHandler()
    flow.hass = hass

    mop = mock_open(read_data=json.dumps({'refresh_token': '12345'}))

    with patch('simplipy.API.login_via_credentials',
               return_value=mock_coro(return_value=mock_api())):
        with patch('homeassistant.util.json.open', mop, create=True):
            with patch('homeassistant.util.json.os.open', return_value=0):
                with patch('homeassistant.util.json.os.replace'):
                    result = await flow.async_step_import(import_config=conf)

                    assert result[
                        'type'] == data_entry_flow.RESULT_TYPE_CREATE_ENTRY
                    assert result['title'] == 'user@email.com'
                    assert result['data'] == {
                        CONF_USERNAME: 'user@email.com',
                        CONF_TOKEN: '12345abc',
                        CONF_SCAN_INTERVAL: 30,
                    }


async def test_step_user(hass):
    """Test that the user step works."""
    conf = {
        CONF_USERNAME: 'user@email.com',
        CONF_PASSWORD: 'password',
        CONF_SCAN_INTERVAL: timedelta(seconds=90),
    }

    flow = config_flow.SimpliSafeFlowHandler()
    flow.hass = hass

    mop = mock_open(read_data=json.dumps({'refresh_token': '12345'}))

    with patch('simplipy.API.login_via_credentials',
               return_value=mock_coro(return_value=mock_api())):
        with patch('homeassistant.util.json.open', mop, create=True):
            with patch('homeassistant.util.json.os.open', return_value=0):
                with patch('homeassistant.util.json.os.replace'):
                    result = await flow.async_step_user(user_input=conf)

                    assert result[
                        'type'] == data_entry_flow.RESULT_TYPE_CREATE_ENTRY
                    assert result['title'] == 'user@email.com'
                    assert result['data'] == {
                        CONF_USERNAME: 'user@email.com',
                        CONF_TOKEN: '12345abc',
                        CONF_SCAN_INTERVAL: 90,
                    }