import pytest

from mock import patch, Mock
from httmock import urlmatch, HTTMock

from data import model
from notifications.notificationmethod import (QuayNotificationMethod, EmailMethod, WebhookMethod,
                                              FlowdockMethod, HipchatMethod, SlackMethod,
                                              CannotValidateNotificationMethodException)
from notifications.notificationevent import NotificationEvent
from notifications.models_interface import Repository, Notification

from test.fixtures import *

def assert_validated(method, method_config, error_message, namespace_name, repo_name):
  if error_message is None:
    method.validate(namespace_name, repo_name, method_config)
  else:
    with pytest.raises(CannotValidateNotificationMethodException) as ipe:
      method.validate(namespace_name, repo_name, method_config)
    assert ipe.value.message == error_message


@pytest.mark.parametrize('method_config,error_message', [
  ({}, 'Missing target'),
  ({'target': {'name': 'invaliduser', 'kind': 'user'}}, 'Unknown user invaliduser'),
  ({'target': {'name': 'invalidorg', 'kind': 'org'}}, 'Unknown organization invalidorg'),
  ({'target': {'name': 'invalidteam', 'kind': 'team'}}, 'Unknown team invalidteam'),

  ({'target': {'name': 'devtable', 'kind': 'user'}}, None),
  ({'target': {'name': 'buynlarge', 'kind': 'org'}}, None),
  ({'target': {'name': 'owners', 'kind': 'team'}}, None),
])
def test_validate_quay_notification(method_config, error_message, initialized_db):
  method = QuayNotificationMethod()
  assert_validated(method, method_config, error_message, 'buynlarge', 'orgrepo')


@pytest.mark.parametrize('method_config,error_message', [
  ({}, 'Missing e-mail address'),
  ({'email': 'a@b.com'}, 'The specified e-mail address is not authorized to receive '
                         'notifications for this repository'),

  ({'email': 'jschorr@devtable.com'}, None),
])
def test_validate_email(method_config, error_message, initialized_db):
  method = EmailMethod()
  assert_validated(method, method_config, error_message, 'devtable', 'simple')


@pytest.mark.parametrize('method_config,error_message', [
  ({}, 'Missing webhook URL'),
  ({'url': 'http://example.com'}, None),
])
def test_validate_webhook(method_config, error_message, initialized_db):
  method = WebhookMethod()
  assert_validated(method, method_config, error_message, 'devtable', 'simple')


@pytest.mark.parametrize('method_config,error_message', [
  ({}, 'Missing Flowdock API Token'),
  ({'flow_api_token': 'sometoken'}, None),
])
def test_validate_flowdock(method_config, error_message, initialized_db):
  method = FlowdockMethod()
  assert_validated(method, method_config, error_message, 'devtable', 'simple')


@pytest.mark.parametrize('method_config,error_message', [
  ({}, 'Missing Hipchat Room Notification Token'),
  ({'notification_token': 'sometoken'}, 'Missing Hipchat Room ID'),
  ({'notification_token': 'sometoken', 'room_id': 'foo'}, None),
])
def test_validate_hipchat(method_config, error_message, initialized_db):
  method = HipchatMethod()
  assert_validated(method, method_config, error_message, 'devtable', 'simple')


@pytest.mark.parametrize('method_config,error_message', [
  ({}, 'Missing Slack Callback URL'),
  ({'url': 'http://example.com'}, None),
])
def test_validate_slack(method_config, error_message, initialized_db):
  method = SlackMethod()
  assert_validated(method, method_config, error_message, 'devtable', 'simple')


@pytest.mark.parametrize('target,expected_users', [
  ({'name': 'devtable', 'kind': 'user'}, ['devtable']),
  ({'name': 'buynlarge', 'kind': 'org'}, ['buynlarge']),
  ({'name': 'creators', 'kind': 'team'}, ['creator']),
])
def test_perform_quay_notification(target, expected_users, initialized_db):
  repository = Repository('buynlarge', 'orgrepo')
  notification = Notification(uuid='fake', event_name='repo_push', method_name='quay',
                              event_config_dict={}, method_config_dict={'target': target},
                              repository=repository)

  event_handler = NotificationEvent.get_event('repo_push')

  sample_data = event_handler.get_sample_data(repository.namespace_name, repository.name, {})

  method = QuayNotificationMethod()
  method.perform(notification, event_handler, {'event_data': sample_data})

  # Ensure that the notification was written for all the expected users.
  if target['kind'] != 'team':
    user = model.user.get_namespace_user(target['name'])
    assert len(model.notification.list_notifications(user, kind_name='repo_push')) > 0


def test_perform_email(initialized_db):
  repository = Repository('buynlarge', 'orgrepo')
  notification = Notification(uuid='fake', event_name='repo_push', method_name='email',
                              event_config_dict={}, method_config_dict={'email': 'test@example.com'},
                              repository=repository)

  event_handler = NotificationEvent.get_event('repo_push')
  sample_data = event_handler.get_sample_data(repository.namespace_name, repository.name, {})

  mock = Mock()
  def get_mock(*args, **kwargs):
    return mock

  with patch('notifications.notificationmethod.Message', get_mock):
    method = EmailMethod()
    method.perform(notification, event_handler, {'event_data': sample_data, 'performer_data': {}})

  mock.send.assert_called_once()


@pytest.mark.parametrize('method, method_config, netloc', [
  (WebhookMethod, {'url': 'http://testurl'}, 'testurl'),
  (FlowdockMethod, {'flow_api_token': 'token'}, 'api.flowdock.com'),
  (HipchatMethod, {'notification_token': 'token', 'room_id': 'foo'}, 'api.hipchat.com'),
  (SlackMethod, {'url': 'http://example.com'}, 'example.com'),
])
def test_perform_http_call(method, method_config, netloc, initialized_db):
  repository = Repository('buynlarge', 'orgrepo')
  notification = Notification(uuid='fake', event_name='repo_push', method_name=method.method_name(),
                              event_config_dict={}, method_config_dict=method_config,
                              repository=repository)

  event_handler = NotificationEvent.get_event('repo_push')
  sample_data = event_handler.get_sample_data(repository.namespace_name, repository.name, {})

  url_hit = [False]
  @urlmatch(netloc=netloc)
  def url_handler(_, __):
    url_hit[0] = True
    return ''

  with HTTMock(url_handler):
    method().perform(notification, event_handler, {'event_data': sample_data, 'performer_data': {}})

  assert url_hit[0]