"""
tests.components.device_tracker.locative
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Tests the locative device tracker component.
"""

import unittest
from unittest.mock import patch

import requests

from homeassistant import bootstrap, const
import homeassistant.core as ha
import homeassistant.components.device_tracker as device_tracker
import homeassistant.components.http as http
import homeassistant.components.zone as zone

SERVER_PORT = 8126
HTTP_BASE_URL = "http://127.0.0.1:{}".format(SERVER_PORT)

hass = None


def _url(data={}):
    """ Helper method to generate urls. """
    data = "&".join(["{}={}".format(name, value) for name, value in data.items()])
    return "{}{}locative?{}".format(HTTP_BASE_URL, const.URL_API, data)


@patch('homeassistant.components.http.util.get_local_ip',
       return_value='127.0.0.1')
def setUpModule(mock_get_local_ip):   # pylint: disable=invalid-name
    """ Initalizes a Home Assistant server. """
    global hass

    hass = ha.HomeAssistant()

    # Set up a couple of zones
    bootstrap.setup_component(hass, zone.DOMAIN, {
        zone.DOMAIN: [
            {
                'name': 'Home',
                'latitude': 41.7855,
                'longitude': -110.7367,
                'radius': 200
            },
            {
                'name': 'Work',
                'latitude': 41.5855,
                'longitude': -110.9367,
                'radius': 100
            }
        ]
    })

    # Set up server
    bootstrap.setup_component(hass, http.DOMAIN, {
        http.DOMAIN: {
            http.CONF_SERVER_PORT: SERVER_PORT
        }
    })

    # Set up API
    bootstrap.setup_component(hass, 'api')

    # Set up device tracker
    bootstrap.setup_component(hass, device_tracker.DOMAIN, {
        device_tracker.DOMAIN: {
            'platform': 'locative'
        }
    })

    hass.start()


def tearDownModule():   # pylint: disable=invalid-name
    """ Stops the Home Assistant server. """
    hass.stop()


class TestLocative(unittest.TestCase):
    """ Test Locative """

    def test_missing_data(self):
        data = {
            'latitude': 1.0,
            'longitude': 1.1,
            'device': '123',
            'id': 'Home',
            'trigger': 'enter'
        }

        # No data
        req = requests.get(_url({}))
        self.assertEqual(422, req.status_code)

        # No latitude
        copy = data.copy()
        del copy['latitude']
        req = requests.get(_url(copy))
        self.assertEqual(422, req.status_code)

        # No device
        copy = data.copy()
        del copy['device']
        req = requests.get(_url(copy))
        self.assertEqual(422, req.status_code)

        # No location
        copy = data.copy()
        del copy['id']
        req = requests.get(_url(copy))
        self.assertEqual(422, req.status_code)

        # No trigger
        copy = data.copy()
        del copy['trigger']
        req = requests.get(_url(copy))
        self.assertEqual(422, req.status_code)

        # Bad longitude
        copy = data.copy()
        copy['longitude'] = 'hello world'
        req = requests.get(_url(copy))
        self.assertEqual(422, req.status_code)

        # Test message
        copy = data.copy()
        copy['trigger'] = 'test'
        req = requests.get(_url(copy))
        self.assertEqual(200, req.status_code)

        # Unknown trigger
        copy = data.copy()
        copy['trigger'] = 'foobar'
        req = requests.get(_url(copy))
        self.assertEqual(422, req.status_code)


    def test_known_zone(self):
        """ Test when there is a known zone """
        data = {
            'latitude': 40.7855,
            'longitude': -111.7367,
            'device': '123',
            'id': 'Home',
            'trigger': 'enter'
        }

        # Enter the Home
        req = requests.get(_url(data))
        self.assertEqual(200, req.status_code)
        state_name = hass.states.get('{}.{}'.format('device_tracker', data['device'])).state
        self.assertEqual(state_name, 'home')

        data['id'] = 'HOME'
        data['trigger'] = 'exit'

        # Exit Home
        req = requests.get(_url(data))
        self.assertEqual(200, req.status_code)
        state_name = hass.states.get('{}.{}'.format('device_tracker', data['device'])).state
        self.assertEqual(state_name, 'not_home')

        data['id'] = 'hOmE'
        data['trigger'] = 'enter'

        # Enter Home again
        req = requests.get(_url(data))
        self.assertEqual(200, req.status_code)
        state_name = hass.states.get('{}.{}'.format('device_tracker', data['device'])).state
        self.assertEqual(state_name, 'home')


    def test_unknown_zone(self):
        """ Test when there is no known zone """
        data = {
            'latitude': 40.7855,
            'longitude': -111.7367,
            'device': '123',
            'id': 'Foobar',
            'trigger': 'enter'
        }

        # Enter Foobar
        req = requests.get(_url(data))
        self.assertEqual(200, req.status_code)

        state = hass.states.get('{}.{}'.format('device_tracker', data['device']))
        self.assertEqual(state.state, 'not_home')
        self.assertEqual(state.attributes['latitude'], data['latitude'])
        self.assertEqual(state.attributes['longitude'], data['longitude'])

        data['trigger'] = 'exit'

        # Exit Foobar
        req = requests.get(_url(data))
        self.assertEqual(200, req.status_code)

        state = hass.states.get('{}.{}'.format('device_tracker', data['device']))
        self.assertEqual(state.state, 'not_home')
        self.assertEqual(state.attributes['latitude'], data['latitude'])
        self.assertEqual(state.attributes['longitude'], data['longitude'])


    def test_exit_after_enter(self):
        """ Test when an exit message comes after an enter message """

        data = {
            'latitude': 40.7855,
            'longitude': -111.7367,
            'device': '123',
            'id': 'Home',
            'trigger': 'enter'
        }

        # Enter Home
        req = requests.get(_url(data))
        self.assertEqual(200, req.status_code)

        state = hass.states.get('{}.{}'.format('device_tracker', data['device']))
        self.assertEqual(state.state, 'home')

        data['id'] = 'Work'

        # Enter Work
        req = requests.get(_url(data))
        self.assertEqual(200, req.status_code)

        state = hass.states.get('{}.{}'.format('device_tracker', data['device']))
        self.assertEqual(state.state, 'work')

        data['id'] = 'Home'
        data['trigger'] = 'exit'

        # Exit Home
        req = requests.get(_url(data))
        self.assertEqual(200, req.status_code)

        state = hass.states.get('{}.{}'.format('device_tracker', data['device']))
        self.assertEqual(state.state, 'work')

        print(req.text)