import random
import string
import pytest
from datetime import datetime

from flask import (json, current_app)
from freezegun import freeze_time
from notifications_python_client.authentication import create_jwt_token

import app
from app.dao import notifications_dao
from app.models import ApiKey, KEY_TYPE_NORMAL, KEY_TYPE_TEAM, KEY_TYPE_TEST, Notification, NotificationHistory
from app.dao.templates_dao import dao_get_all_templates_for_service, dao_update_template
from app.dao.services_dao import dao_update_service
from app.dao.api_key_dao import save_model_api_key
from tests import create_authorization_header
from tests.app.conftest import (
    sample_notification as create_sample_notification,
    sample_service as create_sample_service,
    sample_email_template as create_sample_email_template,
    sample_template as create_sample_template,
    sample_service_whitelist as create_sample_service_whitelist,
    sample_api_key as create_sample_api_key
)

from app.models import Template
from app.errors import InvalidRequest


@pytest.mark.parametrize('template_type',
                         ['sms', 'email'])
def test_create_notification_should_reject_if_missing_required_fields(notify_api,
                                                                      sample_api_key, mocker, template_type):
    with notify_api.test_request_context():
        with notify_api.test_client() as client:
            mocked = mocker.patch('app.celery.provider_tasks.deliver_{}.apply_async'.format(template_type))
            data = {}
            auth_header = create_authorization_header(service_id=sample_api_key.service_id)

            response = client.post(
                path='/notifications/{}'.format(template_type),
                data=json.dumps(data),
                headers=[('Content-Type', 'application/json'), auth_header])

            json_resp = json.loads(response.get_data(as_text=True))
            mocked.assert_not_called()
            assert json_resp['result'] == 'error'
            assert 'Missing data for required field.' in json_resp['message']['to'][0]
            assert 'Missing data for required field.' in json_resp['message']['template'][0]
            assert response.status_code == 400


def test_should_reject_bad_phone_numbers(notify_api, sample_template, mocker):
    with notify_api.test_request_context():
        with notify_api.test_client() as client:
            mocked = mocker.patch('app.celery.provider_tasks.deliver_sms.apply_async')

            data = {
                'to': 'invalid',
                'template': sample_template.id
            }
            auth_header = create_authorization_header(service_id=sample_template.service_id)

            response = client.post(
                path='/notifications/sms',
                data=json.dumps(data),
                headers=[('Content-Type', 'application/json'), auth_header])

            json_resp = json.loads(response.get_data(as_text=True))
            mocked.assert_not_called()
            assert json_resp['result'] == 'error'
            assert len(json_resp['message'].keys()) == 1
            assert 'Invalid phone number: Must not contain letters or symbols' in json_resp['message']['to']
            assert response.status_code == 400


@pytest.mark.parametrize('template_type, to',
                         [('sms', '+447700900855'),
                          ('email', 'ok@ok.com')])
def test_send_notification_invalid_template_id(notify_api, sample_template, mocker, fake_uuid, template_type, to):
    with notify_api.test_request_context():
        with notify_api.test_client() as client:
            mocked = mocker.patch('app.celery.provider_tasks.deliver_{}.apply_async'.format(template_type))

            data = {
                'to': to,
                'template': fake_uuid
            }
            auth_header = create_authorization_header(service_id=sample_template.service_id)

            response = client.post(
                path='/notifications/{}'.format(template_type),
                data=json.dumps(data),
                headers=[('Content-Type', 'application/json'), auth_header])

            json_resp = json.loads(response.get_data(as_text=True))
            mocked.assert_not_called()
            assert response.status_code == 404
            test_string = 'No result found'
            assert test_string in json_resp['message']


@freeze_time("2016-01-01 11:09:00.061258")
def test_send_notification_with_placeholders_replaced(notify_api, sample_email_template_with_placeholders, mocker):
    with notify_api.test_request_context():
        with notify_api.test_client() as client:
            mocked = mocker.patch('app.celery.provider_tasks.deliver_email.apply_async')

            data = {
                'to': 'ok@ok.com',
                'template': str(sample_email_template_with_placeholders.id),
                'personalisation': {
                    'name': 'Jo'
                }
            }
            auth_header = create_authorization_header(service_id=sample_email_template_with_placeholders.service.id)

            response = client.post(
                path='/notifications/email',
                data=json.dumps(data),
                headers=[('Content-Type', 'application/json'), auth_header])

            response_data = json.loads(response.data)['data']
            notification_id = response_data['notification']['id']
            data.update({"template_version": sample_email_template_with_placeholders.version})

            mocked.assert_called_once_with(
                [notification_id],
                queue="send-email"
            )
            assert response.status_code == 201
            assert response_data['body'] == u'Hello Jo\nThis is an email from GOV.\u200BUK'
            assert response_data['subject'] == 'Jo'


def test_send_notification_with_placeholders_replaced_with_list(
    client,
    sample_email_template_with_placeholders,
    mocker
):
    mocked = mocker.patch('app.celery.provider_tasks.deliver_email.apply_async')

    response = client.post(
        path='/notifications/email',
        data=json.dumps(
            {
                'to': 'ok@ok.com',
                'template': str(sample_email_template_with_placeholders.id),
                'personalisation': {
                    'name': ['Jo', 'John', 'Josephine']
                }
            }
        ),
        headers=[
            ('Content-Type', 'application/json'),
            create_authorization_header(service_id=sample_email_template_with_placeholders.service.id)
        ]
    )

    response_data = json.loads(response.data)['data']
    assert response.status_code == 201
    assert response_data['body'] == (
        'Hello \n\n'
        '* Jo\n'
        '* John\n'
        '* Josephine\n'
        'This is an email from GOV.\u200BUK'
    )
    assert response_data['subject'] == 'Jo, John and Josephine'


def test_should_not_send_notification_for_archived_template(notify_api, sample_template):
    with notify_api.test_request_context():
        with notify_api.test_client() as client:
            sample_template.archived = True
            dao_update_template(sample_template)
            json_data = json.dumps({
                'to': '+447700900855',
                'template': sample_template.id
            })
            auth_header = create_authorization_header(service_id=sample_template.service_id)

            resp = client.post(
                path='/notifications/sms',
                data=json_data,
                headers=[('Content-Type', 'application/json'), auth_header])
            assert resp.status_code == 400
            json_resp = json.loads(resp.get_data(as_text=True))
            assert 'Template has been deleted' in json_resp['message']


@pytest.mark.parametrize('template_type, to',
                         [('sms', '+447700900855'),
                          ('email', 'not-someone-we-trust@email-address.com')])
def test_should_not_send_notification_if_restricted_and_not_a_service_user(notify_api,
                                                                           sample_template,
                                                                           sample_email_template,
                                                                           mocker,
                                                                           template_type,
                                                                           to):
    with notify_api.test_request_context():
        with notify_api.test_client() as client:
            mocked = mocker.patch('app.celery.provider_tasks.deliver_{}.apply_async'.format(template_type))
            template = sample_template if template_type == 'sms' else sample_email_template
            template.service.restricted = True
            dao_update_service(template.service)
            data = {
                'to': to,
                'template': template.id
            }

            auth_header = create_authorization_header(service_id=template.service_id)

            response = client.post(
                path='/notifications/{}'.format(template_type),
                data=json.dumps(data),
                headers=[('Content-Type', 'application/json'), auth_header])

            json_resp = json.loads(response.get_data(as_text=True))
            mocked.assert_not_called()

            assert response.status_code == 400
            assert [(
                'Can’t send to this recipient when service is in trial mode '
                '– see https://www.notifications.service.gov.uk/trial-mode'
            )] == json_resp['message']['to']


@pytest.mark.parametrize('template_type',
                         ['sms', 'email'])
def test_should_send_notification_if_restricted_and_a_service_user(notify_api,
                                                                   sample_template,
                                                                   sample_email_template,
                                                                   template_type,
                                                                   mocker):
    with notify_api.test_request_context():
        with notify_api.test_client() as client:
            mocked = mocker.patch('app.celery.provider_tasks.deliver_{}.apply_async'.format(template_type))

            template = sample_template if template_type == 'sms' else sample_email_template
            to = template.service.created_by.mobile_number if template_type == 'sms' \
                else template.service.created_by.email_address
            template.service.restricted = True
            dao_update_service(template.service)
            data = {
                'to': to,
                'template': template.id
            }

            auth_header = create_authorization_header(service_id=template.service_id)

            response = client.post(
                path='/notifications/{}'.format(template_type),
                data=json.dumps(data),
                headers=[('Content-Type', 'application/json'), auth_header])

            assert mocked.called == 1
            assert response.status_code == 201


@pytest.mark.parametrize('template_type',
                         ['sms', 'email'])
def test_should_not_allow_template_from_another_service(notify_api,
                                                        service_factory,
                                                        sample_user,
                                                        mocker,
                                                        template_type):
    with notify_api.test_request_context():
        with notify_api.test_client() as client:
            mocked = mocker.patch('app.celery.provider_tasks.deliver_{}.apply_async'.format(template_type))
            service_1 = service_factory.get('service 1', user=sample_user, email_from='service.1')
            service_2 = service_factory.get('service 2', user=sample_user, email_from='service.2')

            service_2_templates = dao_get_all_templates_for_service(service_id=service_2.id)
            to = sample_user.mobile_number if template_type == 'sms' else sample_user.email_address
            data = {
                'to': to,
                'template': service_2_templates[0].id
            }

            auth_header = create_authorization_header(service_id=service_1.id)

            response = client.post(
                path='/notifications/{}'.format(template_type),
                data=json.dumps(data),
                headers=[('Content-Type', 'application/json'), auth_header])

            json_resp = json.loads(response.get_data(as_text=True))
            mocked.assert_not_called()
            assert response.status_code == 404
            test_string = 'No result found'
            assert test_string in json_resp['message']


@freeze_time("2016-01-01 11:09:00.061258")
def test_should_allow_valid_sms_notification(notify_api, sample_template, mocker):
    with notify_api.test_request_context():
        with notify_api.test_client() as client:
            mocked = mocker.patch('app.celery.provider_tasks.deliver_sms.apply_async')
            mocker.patch('app.encryption.encrypt', return_value="something_encrypted")

            data = {
                'to': '07700 900 855',
                'template': str(sample_template.id)
            }

            auth_header = create_authorization_header(service_id=sample_template.service_id)

            response = client.post(
                path='/notifications/sms',
                data=json.dumps(data),
                headers=[('Content-Type', 'application/json'), auth_header])

            response_data = json.loads(response.data)['data']
            notification_id = response_data['notification']['id']

            mocked.assert_called_once_with([notification_id], queue='send-sms')
            assert response.status_code == 201
            assert notification_id
            assert 'subject' not in response_data
            assert response_data['body'] == sample_template.content
            assert response_data['template_version'] == sample_template.version


def test_should_reject_email_notification_with_bad_email(notify_api, sample_email_template, mocker):
    with notify_api.test_request_context():
        with notify_api.test_client() as client:
            mocked = mocker.patch('app.celery.provider_tasks.deliver_email.apply_async')
            to_address = "bad-email"
            data = {
                'to': to_address,
                'template': str(sample_email_template.service_id)
            }
            auth_header = create_authorization_header(service_id=sample_email_template.service_id)

            response = client.post(
                path='/notifications/email',
                data=json.dumps(data),
                headers=[('Content-Type', 'application/json'), auth_header])

            data = json.loads(response.get_data(as_text=True))
            mocked.apply_async.assert_not_called()
            assert response.status_code == 400
            assert data['result'] == 'error'
            assert data['message']['to'][0] == 'Not a valid email address'


@freeze_time("2016-01-01 11:09:00.061258")
def test_should_allow_valid_email_notification(notify_api, sample_email_template, mocker):
    with notify_api.test_request_context():
        with notify_api.test_client() as client:
            mocker.patch('app.celery.provider_tasks.deliver_email.apply_async')
            mocker.patch('app.encryption.encrypt', return_value="something_encrypted")

            data = {
                'to': 'ok@ok.com',
                'template': str(sample_email_template.id)
            }

            auth_header = create_authorization_header(service_id=sample_email_template.service_id)

            response = client.post(
                path='/notifications/email',
                data=json.dumps(data),
                headers=[('Content-Type', 'application/json'), auth_header])
            assert response.status_code == 201
            response_data = json.loads(response.get_data(as_text=True))['data']
            notification_id = response_data['notification']['id']
            app.celery.provider_tasks.deliver_email.apply_async.assert_called_once_with(
                [notification_id],
                queue="send-email"
            )

            assert response.status_code == 201
            assert notification_id
            assert response_data['subject'] == 'Email Subject'
            assert response_data['body'] == sample_email_template.content
            assert response_data['template_version'] == sample_email_template.version


@freeze_time("2016-01-01 12:00:00.061258")
def test_should_block_api_call_if_over_day_limit_for_live_service(
        notify_db,
        notify_db_session,
        notify_api,
        mocker):
    with notify_api.test_request_context():
        with notify_api.test_client() as client:
            mocker.patch('app.celery.provider_tasks.deliver_email.apply_async')
            mocker.patch('app.encryption.encrypt', return_value="something_encrypted")

            service = create_sample_service(notify_db, notify_db_session, limit=1, restricted=False)
            email_template = create_sample_email_template(notify_db, notify_db_session, service=service)
            create_sample_notification(
                notify_db, notify_db_session, template=email_template, service=service, created_at=datetime.utcnow()
            )

            data = {
                'to': 'ok@ok.com',
                'template': str(email_template.id)
            }

            auth_header = create_authorization_header(service_id=service.id)

            response = client.post(
                path='/notifications/email',
                data=json.dumps(data),
                headers=[('Content-Type', 'application/json'), auth_header])
            json.loads(response.get_data(as_text=True))
            assert response.status_code == 429


@freeze_time("2016-01-01 12:00:00.061258")
def test_should_block_api_call_if_over_day_limit_for_restricted_service(
        notify_db,
        notify_db_session,
        notify_api,
        mocker):
    with notify_api.test_request_context():
        with notify_api.test_client() as client:
            mocker.patch('app.celery.provider_tasks.deliver_sms.apply_async')
            mocker.patch('app.encryption.encrypt', return_value="something_encrypted")

            service = create_sample_service(notify_db, notify_db_session, limit=1, restricted=True)
            email_template = create_sample_email_template(notify_db, notify_db_session, service=service)
            create_sample_notification(
                notify_db, notify_db_session, template=email_template, service=service, created_at=datetime.utcnow()
            )

            data = {
                'to': 'ok@ok.com',
                'template': str(email_template.id)
            }

            auth_header = create_authorization_header(service_id=service.id)

            response = client.post(
                path='/notifications/email',
                data=json.dumps(data),
                headers=[('Content-Type', 'application/json'), auth_header])
            json.loads(response.get_data(as_text=True))

            assert response.status_code == 429


@pytest.mark.parametrize('restricted', [True, False])
@freeze_time("2016-01-01 12:00:00.061258")
def test_should_allow_api_call_if_under_day_limit_regardless_of_type(
        notify_db,
        notify_db_session,
        notify_api,
        sample_user,
        mocker,
        restricted):
    with notify_api.test_request_context():
        with notify_api.test_client() as client:
            mocker.patch('app.celery.provider_tasks.deliver_sms.apply_async')
            mocker.patch('app.encryption.encrypt', return_value="something_encrypted")

            service = create_sample_service(notify_db, notify_db_session, limit=2, restricted=restricted)
            email_template = create_sample_email_template(notify_db, notify_db_session, service=service)
            sms_template = create_sample_template(notify_db, notify_db_session, service=service)
            create_sample_notification(notify_db, notify_db_session, template=email_template, service=service)

            data = {
                'to': sample_user.mobile_number,
                'template': str(sms_template.id)
            }

            auth_header = create_authorization_header(service_id=service.id)

            response = client.post(
                path='/notifications/sms',
                data=json.dumps(data),
                headers=[('Content-Type', 'application/json'), auth_header])

            assert response.status_code == 201


def test_should_not_return_html_in_body(notify_api, notify_db, notify_db_session, mocker):
    with notify_api.test_request_context():
        with notify_api.test_client() as client:
            mocker.patch('app.celery.provider_tasks.deliver_email.apply_async')
            email_template = create_sample_email_template(notify_db, notify_db_session, content='hello\nthere')

            data = {
                'to': 'ok@ok.com',
                'template': str(email_template.id)
            }

            auth_header = create_authorization_header(service_id=email_template.service_id)
            response = client.post(
                path='/notifications/email',
                data=json.dumps(data),
                headers=[('Content-Type', 'application/json'), auth_header])

            assert response.status_code == 201
            assert json.loads(response.get_data(as_text=True))['data']['body'] == 'hello\nthere'


def test_should_not_send_email_if_team_api_key_and_not_a_service_user(notify_api, sample_email_template, mocker):
    with notify_api.test_request_context(), notify_api.test_client() as client:
        mocker.patch('app.celery.provider_tasks.deliver_email.apply_async')
        data = {
            'to': "not-someone-we-trust@email-address.com",
            'template': str(sample_email_template.id),
        }

        auth_header = create_authorization_header(service_id=sample_email_template.service_id, key_type=KEY_TYPE_TEAM)

        response = client.post(
            path='/notifications/email',
            data=json.dumps(data),
            headers=[('Content-Type', 'application/json'), auth_header])

        json_resp = json.loads(response.get_data(as_text=True))

        app.celery.provider_tasks.deliver_email.apply_async.assert_not_called()

        assert response.status_code == 400
        assert [
            'Can’t send to this recipient using a team-only API key'
        ] == json_resp['message']['to']


def test_should_not_send_sms_if_team_api_key_and_not_a_service_user(notify_api, sample_template, mocker):
    with notify_api.test_request_context(), notify_api.test_client() as client:
        mocker.patch('app.celery.provider_tasks.deliver_sms.apply_async')

        data = {
            'to': '07123123123',
            'template': str(sample_template.id),
        }

        auth_header = create_authorization_header(service_id=sample_template.service_id, key_type=KEY_TYPE_TEAM)

        response = client.post(
            path='/notifications/sms',
            data=json.dumps(data),
            headers=[('Content-Type', 'application/json'), auth_header])

        json_resp = json.loads(response.get_data(as_text=True))
        app.celery.provider_tasks.deliver_sms.apply_async.assert_not_called()

        assert response.status_code == 400
        assert [
            'Can’t send to this recipient using a team-only API key'
        ] == json_resp['message']['to']


def test_should_send_email_if_team_api_key_and_a_service_user(notify_api, sample_email_template, fake_uuid, mocker):
    with notify_api.test_request_context(), notify_api.test_client() as client:
        mocker.patch('app.celery.provider_tasks.deliver_email.apply_async')
        mocker.patch('app.dao.notifications_dao.create_uuid', return_value=fake_uuid)

        data = {
            'to': sample_email_template.service.created_by.email_address,
            'template': sample_email_template.id
        }
        api_key = ApiKey(service=sample_email_template.service,
                         name='team_key',
                         created_by=sample_email_template.created_by,
                         key_type=KEY_TYPE_TEAM)
        save_model_api_key(api_key)
        auth_header = create_jwt_token(secret=api_key.unsigned_secret, client_id=str(api_key.service_id))

        response = client.post(
            path='/notifications/email',
            data=json.dumps(data),
            headers=[('Content-Type', 'application/json'), ('Authorization', 'Bearer {}'.format(auth_header))])

        app.celery.provider_tasks.deliver_email.apply_async.assert_called_once_with([fake_uuid], queue='send-email')
        assert response.status_code == 201


@pytest.mark.parametrize('restricted', [True, False])
@pytest.mark.parametrize('limit', [0, 1])
def test_should_send_sms_to_anyone_with_test_key(
    notify_api, sample_template, mocker, restricted, limit, fake_uuid
):
    with notify_api.test_request_context(), notify_api.test_client() as client:
        mocker.patch('app.celery.provider_tasks.deliver_sms.apply_async')
        mocker.patch('app.dao.notifications_dao.create_uuid', return_value=fake_uuid)

        data = {
            'to': '07811111111',
            'template': sample_template.id
        }
        sample_template.service.restricted = restricted
        sample_template.service.message_limit = limit
        api_key = ApiKey(
            service=sample_template.service,
            name='test_key',
            created_by=sample_template.created_by,
            key_type=KEY_TYPE_TEST
        )
        save_model_api_key(api_key)
        auth_header = create_jwt_token(secret=api_key.unsigned_secret, client_id=str(api_key.service_id))

        response = client.post(
            path='/notifications/sms',
            data=json.dumps(data),
            headers=[('Content-Type', 'application/json'), ('Authorization', 'Bearer {}'.format(auth_header))]
        )
        app.celery.provider_tasks.deliver_sms.apply_async.assert_called_once_with([fake_uuid], queue='research-mode')
        assert response.status_code == 201


@pytest.mark.parametrize('restricted', [True, False])
@pytest.mark.parametrize('limit', [0, 1])
def test_should_send_email_to_anyone_with_test_key(
    notify_api, sample_email_template, mocker, restricted, limit, fake_uuid
):
    with notify_api.test_request_context(), notify_api.test_client() as client:
        mocker.patch('app.celery.provider_tasks.deliver_email.apply_async')
        mocker.patch('app.dao.notifications_dao.create_uuid', return_value=fake_uuid)

        data = {
            'to': 'anyone123@example.com',
            'template': sample_email_template.id
        }
        sample_email_template.service.restricted = restricted
        sample_email_template.service.message_limit = limit
        api_key = ApiKey(
            service=sample_email_template.service,
            name='test_key',
            created_by=sample_email_template.created_by,
            key_type=KEY_TYPE_TEST
        )
        save_model_api_key(api_key)
        auth_header = create_jwt_token(secret=api_key.unsigned_secret, client_id=str(api_key.service_id))

        response = client.post(
            path='/notifications/email',
            data=json.dumps(data),
            headers=[('Content-Type', 'application/json'), ('Authorization', 'Bearer {}'.format(auth_header))]
        )

        app.celery.provider_tasks.deliver_email.apply_async.assert_called_once_with([fake_uuid], queue='research-mode')
        assert response.status_code == 201


def test_should_send_sms_if_team_api_key_and_a_service_user(notify_api, sample_template, fake_uuid, mocker):
    with notify_api.test_request_context(), notify_api.test_client() as client:
        mocker.patch('app.celery.provider_tasks.deliver_sms.apply_async')
        mocker.patch('app.dao.notifications_dao.create_uuid', return_value=fake_uuid)

        data = {
            'to': sample_template.service.created_by.mobile_number,
            'template': sample_template.id
        }
        api_key = ApiKey(service=sample_template.service,
                         name='team_key',
                         created_by=sample_template.created_by,
                         key_type=KEY_TYPE_TEAM)
        save_model_api_key(api_key)
        auth_header = create_jwt_token(secret=api_key.unsigned_secret, client_id=str(api_key.service_id))

        response = client.post(
            path='/notifications/sms',
            data=json.dumps(data),
            headers=[('Content-Type', 'application/json'), ('Authorization', 'Bearer {}'.format(auth_header))])

        app.celery.provider_tasks.deliver_sms.apply_async.assert_called_once_with([fake_uuid], queue='send-sms')
        assert response.status_code == 201


@pytest.mark.parametrize('template_type',
                         ['sms', 'email'])
def test_should_persist_notification(notify_api, sample_template,
                                     sample_email_template,
                                     template_type,
                                     fake_uuid, mocker):
    with notify_api.test_request_context(), notify_api.test_client() as client:
        mocked = mocker.patch('app.celery.provider_tasks.deliver_{}.apply_async'.format(template_type))
        mocker.patch('app.dao.notifications_dao.create_uuid', return_value=fake_uuid)
        template = sample_template if template_type == 'sms' else sample_email_template
        to = sample_template.service.created_by.mobile_number if template_type == 'sms' \
            else sample_email_template.service.created_by.email_address
        data = {
            'to': to,
            'template': template.id
        }
        api_key = ApiKey(
            service=template.service,
            name='team_key',
            created_by=template.created_by,
            key_type=KEY_TYPE_TEAM)
        save_model_api_key(api_key)
        auth_header = create_jwt_token(secret=api_key.unsigned_secret, client_id=str(api_key.service_id))

        response = client.post(
            path='/notifications/{}'.format(template_type),
            data=json.dumps(data),
            headers=[('Content-Type', 'application/json'), ('Authorization', 'Bearer {}'.format(auth_header))])

        mocked.assert_called_once_with([fake_uuid], queue='send-{}'.format(template_type))
        assert response.status_code == 201

        notification = notifications_dao.get_notification_by_id(fake_uuid)
        assert notification.to == to
        assert notification.template_id == template.id
        assert notification.notification_type == template_type


@pytest.mark.parametrize('template_type',
                         ['sms', 'email'])
def test_should_delete_notification_and_return_error_if_sqs_fails(
        client,
        sample_email_template,
        sample_template,
        fake_uuid,
        mocker,
        template_type):
    mocked = mocker.patch(
        'app.celery.provider_tasks.deliver_{}.apply_async'.format(template_type),
        side_effect=Exception("failed to talk to SQS")
    )
    mocker.patch('app.dao.notifications_dao.create_uuid', return_value=fake_uuid)
    template = sample_template if template_type == 'sms' else sample_email_template
    to = sample_template.service.created_by.mobile_number if template_type == 'sms' \
        else sample_email_template.service.created_by.email_address
    data = {
        'to': to,
        'template': template.id
    }
    api_key = ApiKey(
        service=template.service,
        name='team_key',
        created_by=template.created_by,
        key_type=KEY_TYPE_TEAM)
    save_model_api_key(api_key)
    auth_header = create_jwt_token(secret=api_key.unsigned_secret, client_id=str(api_key.service_id))

    response = client.post(
        path='/notifications/{}'.format(template_type),
        data=json.dumps(data),
        headers=[('Content-Type', 'application/json'), ('Authorization', 'Bearer {}'.format(auth_header))])

    mocked.assert_called_once_with([fake_uuid], queue='send-{}'.format(template_type))
    assert response.status_code == 500
    assert not notifications_dao.get_notification_by_id(fake_uuid)
    assert not NotificationHistory.query.get(fake_uuid)


@pytest.mark.parametrize('to_email', [
    'simulate-delivered@notifications.service.gov.uk',
    'simulate-delivered-2@notifications.service.gov.uk',
    'simulate-delivered-3@notifications.service.gov.uk'
])
def test_should_not_persist_notification_or_send_email_if_simulated_email(
        client,
        to_email,
        sample_email_template,
        mocker):
    apply_async = mocker.patch('app.celery.provider_tasks.deliver_email.apply_async')

    data = {
        'to': to_email,
        'template': sample_email_template.id
    }

    auth_header = create_authorization_header(service_id=sample_email_template.service_id)

    response = client.post(
        path='/notifications/email',
        data=json.dumps(data),
        headers=[('Content-Type', 'application/json'), auth_header])

    assert response.status_code == 201
    apply_async.assert_not_called()
    assert Notification.query.count() == 0


@pytest.mark.parametrize('to_sms', [
    '07700 900000',
    '07700 900111',
    '07700 900222'
])
def test_should_not_persist_notification_or_send_sms_if_simulated_number(
        client,
        to_sms,
        sample_template,
        mocker):
    apply_async = mocker.patch('app.celery.provider_tasks.deliver_sms.apply_async')

    data = {
        'to': to_sms,
        'template': sample_template.id
    }

    auth_header = create_authorization_header(service_id=sample_template.service_id)

    response = client.post(
        path='/notifications/sms',
        data=json.dumps(data),
        headers=[('Content-Type', 'application/json'), auth_header])

    assert response.status_code == 201
    apply_async.assert_not_called()
    assert Notification.query.count() == 0


@pytest.mark.parametrize('key_type', [
    KEY_TYPE_NORMAL, KEY_TYPE_TEAM
])
@pytest.mark.parametrize('notification_type, to, _create_sample_template', [
    ('sms', '07827992635', create_sample_template),
    ('email', 'non_whitelist_recipient@mail.com', create_sample_email_template)]
)
def test_should_not_send_notification_to_non_whitelist_recipient_in_trial_mode(
    client,
    notify_db,
    notify_db_session,
    notification_type,
    to,
    _create_sample_template,
    key_type,
    mocker
):
    service = create_sample_service(notify_db, notify_db_session, limit=2, restricted=True)
    service_whitelist = create_sample_service_whitelist(notify_db, notify_db_session, service=service)

    apply_async = mocker.patch('app.celery.provider_tasks.deliver_{}.apply_async'.format(notification_type))
    template = _create_sample_template(notify_db, notify_db_session, service=service)
    assert service_whitelist.service_id == service.id
    assert to not in [member.recipient for member in service.whitelist]

    create_sample_notification(notify_db, notify_db_session, template=template, service=service)

    data = {
        'to': to,
        'template': str(template.id)
    }

    api_key = create_sample_api_key(notify_db, notify_db_session, service, key_type=key_type)
    auth_header = create_jwt_token(secret=api_key.unsigned_secret, client_id=str(api_key.service_id))

    response = client.post(
        path='/notifications/{}'.format(notification_type),
        data=json.dumps(data),
        headers=[('Content-Type', 'application/json'), ('Authorization', 'Bearer {}'.format(auth_header))])

    expected_response_message = (
        'Can’t send to this recipient when service is in trial mode '
        '– see https://www.notifications.service.gov.uk/trial-mode'
    ) if key_type == KEY_TYPE_NORMAL else ('Can’t send to this recipient using a team-only API key')

    json_resp = json.loads(response.get_data(as_text=True))
    assert response.status_code == 400
    assert json_resp['result'] == 'error'
    assert expected_response_message in json_resp['message']['to']
    apply_async.assert_not_called()


@pytest.mark.parametrize('service_restricted', [
    True, False
])
@pytest.mark.parametrize('key_type', [
    KEY_TYPE_NORMAL, KEY_TYPE_TEAM
])
@pytest.mark.parametrize('notification_type, to, _create_sample_template', [
    ('sms', '07123123123', create_sample_template),
    ('email', 'whitelist_recipient@mail.com', create_sample_email_template)]
)
def test_should_send_notification_to_whitelist_recipient(
    client,
    notify_db,
    notify_db_session,
    notification_type,
    to,
    _create_sample_template,
    key_type,
    service_restricted,
    mocker
):
    service = create_sample_service(notify_db, notify_db_session, limit=2, restricted=service_restricted)
    apply_async = mocker.patch('app.celery.provider_tasks.deliver_{}.apply_async'.format(notification_type))
    template = _create_sample_template(notify_db, notify_db_session, service=service)
    if notification_type == 'sms':
        service_whitelist = create_sample_service_whitelist(notify_db, notify_db_session,
                                                            service=service, mobile_number=to)
    elif notification_type == 'email':
        service_whitelist = create_sample_service_whitelist(notify_db, notify_db_session,
                                                            service=service, email_address=to)

    assert service_whitelist.service_id == service.id
    assert to in [member.recipient for member in service.whitelist]

    create_sample_notification(notify_db, notify_db_session, template=template, service=service)

    data = {
        'to': to,
        'template': str(template.id)
    }

    sample_key = create_sample_api_key(notify_db, notify_db_session, service, key_type=key_type)
    auth_header = create_jwt_token(secret=sample_key.unsigned_secret, client_id=str(sample_key.service_id))

    response = client.post(
        path='/notifications/{}'.format(notification_type),
        data=json.dumps(data),
        headers=[('Content-Type', 'application/json'), ('Authorization', 'Bearer {}'.format(auth_header))])

    json_resp = json.loads(response.get_data(as_text=True))
    assert response.status_code == 201
    assert json_resp['data']['notification']['id']
    assert json_resp['data']['body'] == template.content
    assert json_resp['data']['template_version'] == template.version
    assert apply_async.called


@pytest.mark.parametrize(
    'notification_type, template_type, to', [
        ('email', 'sms', 'notify@digital.cabinet-office.gov.uk'),
        ('sms', 'email', '+447700900986')
    ])
def test_should_error_if_notification_type_does_not_match_template_type(
        client,
        notify_db,
        notify_db_session,
        template_type,
        notification_type,
        to
):
    template = create_sample_template(notify_db, notify_db_session, template_type=template_type)
    data = {
        'to': to,
        'template': template.id
    }
    auth_header = create_authorization_header(service_id=template.service_id)
    response = client.post("/notifications/{}".format(notification_type),
                           data=json.dumps(data),
                           headers=[('Content-Type', 'application/json'), auth_header])

    assert response.status_code == 400
    json_resp = json.loads(response.get_data(as_text=True))
    assert json_resp['result'] == 'error'
    assert '{0} template is not suitable for {1} notification'.format(template_type, notification_type) \
           in json_resp['message']


def test_create_template_raises_invalid_request_exception_with_missing_personalisation(
        sample_template_with_placeholders):
    template = Template.query.get(sample_template_with_placeholders.id)
    from app.notifications.rest import create_template_object_for_notification
    with pytest.raises(InvalidRequest) as e:
        create_template_object_for_notification(template, {})
    assert {'template': ['Missing personalisation:  Name']} == e.value.message


def test_create_template_doesnt_raise_with_too_much_personalisation(
        sample_template_with_placeholders
):
    from app.notifications.rest import create_template_object_for_notification
    template = Template.query.get(sample_template_with_placeholders.id)
    create_template_object_for_notification(template, {'name': 'Jo', 'extra': 'stuff'})


@pytest.mark.parametrize(
    'template_type, should_error', [
        ('sms', True),
        ('email', False)
    ]
)
def test_create_template_raises_invalid_request_when_content_too_large(
        notify_db,
        notify_db_session,
        template_type,
        should_error
):
    sample = create_sample_template(
        notify_db,
        notify_db_session,
        content="((long_text))",
        template_type=template_type
    )
    limit = current_app.config.get('SMS_CHAR_COUNT_LIMIT')
    template = Template.query.get(sample.id)
    from app.notifications.rest import create_template_object_for_notification
    try:
        create_template_object_for_notification(template,
                                                {'long_text':
                                                    ''.join(
                                                        random.choice(string.ascii_uppercase + string.digits) for _ in
                                                        range(limit + 1))})
        if should_error:
            pytest.fail("expected an InvalidRequest")
    except InvalidRequest as e:
        if not should_error:
            pytest.fail("do not expect an InvalidRequest")
        assert e.message == {'content': ['Content has a character count greater than the limit of {}'.format(limit)]}


@pytest.mark.parametrize("notification_type, send_to",
                         [("sms", "07700 900 855"),
                          ("email", "sample@email.com")])
def test_send_notification_uses_priority_queue_when_template_is_marked_as_priority(client, notify_db,
                                                                                   notify_db_session, mocker,
                                                                                   notification_type, send_to):
    sample = create_sample_template(
        notify_db,
        notify_db_session,
        template_type=notification_type,
        process_type='priority'
    )
    mocked = mocker.patch('app.celery.provider_tasks.deliver_{}.apply_async'.format(notification_type))

    data = {
        'to': send_to,
        'template': str(sample.id)
    }

    auth_header = create_authorization_header(service_id=sample.service_id)

    response = client.post(
        path='/notifications/{}'.format(notification_type),
        data=json.dumps(data),
        headers=[('Content-Type', 'application/json'), auth_header])

    response_data = json.loads(response.data)['data']
    notification_id = response_data['notification']['id']

    assert response.status_code == 201
    mocked.assert_called_once_with([notification_id], queue='notify')