from datetime import (datetime, date, timedelta)
import json
import uuid

from flask import current_app, url_for

import pytest
import pytz
import requests_mock
from sqlalchemy import asc
from sqlalchemy.orm.session import make_transient

from app import db
from app.models import (
    Service,
    Template,
    TemplateHistory,
    ApiKey,
    Job,
    Notification,
    NotificationHistory,
    InvitedUser,
    Permission,
    ProviderStatistics,
    ProviderDetails,
    ProviderDetailsHistory,
    ProviderRates,
    ScheduledNotification,
    ServiceWhitelist,
    KEY_TYPE_NORMAL,
    KEY_TYPE_TEST,
    KEY_TYPE_TEAM,
    MOBILE_TYPE,
    EMAIL_TYPE,
    INBOUND_SMS_TYPE,
    SMS_TYPE,
    LETTER_TYPE,
    NOTIFICATION_STATUS_TYPES_COMPLETED,
    SERVICE_PERMISSION_TYPES,
    ServiceEmailReplyTo
)
from app.dao.users_dao import (create_user_code, create_secret_code)
from app.dao.services_dao import (dao_create_service, dao_add_user_to_service)
from app.dao.templates_dao import dao_create_template
from app.dao.api_key_dao import save_model_api_key
from app.dao.jobs_dao import dao_create_job
from app.dao.notifications_dao import dao_create_notification
from app.dao.invited_user_dao import save_invited_user
from app.dao.provider_rates_dao import create_provider_rates
from app.clients.sms.firetext import FiretextClient
from app.history_meta import create_history
from tests import create_authorization_header
from tests.app.db import (
    create_user,
    create_template,
    create_notification,
    create_service,
    create_api_key,
    create_inbound_number,
    create_letter_contact,
    create_inbound_sms,
)


@pytest.yield_fixture
def rmock():
    with requests_mock.mock() as rmock:
        yield rmock


@pytest.fixture(scope='function')
def service_factory(notify_db, notify_db_session):
    class ServiceFactory(object):
        def get(self, service_name, user=None, template_type=None, email_from=None):
            if not user:
                user = create_user()
            if not email_from:
                email_from = service_name
            service = sample_service(notify_db, notify_db_session, service_name, user, email_from=email_from)
            if template_type == 'email':
                sample_template(
                    notify_db,
                    notify_db_session,
                    template_type=template_type,
                    subject_line=service.email_from,
                    service=service
                )
            else:
                sample_template(
                    notify_db,
                    notify_db_session,
                    service=service
                )
            return service

    return ServiceFactory()


@pytest.fixture(scope='function')
def sample_user(notify_db_session):
    return create_user()


def create_code(notify_db, notify_db_session, code_type, usr=None, code=None):
    if code is None:
        code = create_secret_code()
    if usr is None:
        usr = create_user()
    return create_user_code(usr, code, code_type), code


@pytest.fixture(scope='function')
def sample_email_code(notify_db,
                      notify_db_session,
                      code=None,
                      code_type="email",
                      usr=None):
    code, txt_code = create_code(notify_db,
                                 notify_db_session,
                                 code_type,
                                 usr=usr,
                                 code=code)
    code.txt_code = txt_code
    return code


@pytest.fixture(scope='function')
def sample_sms_code(notify_db,
                    notify_db_session,
                    code=None,
                    code_type="sms",
                    usr=None):
    code, txt_code = create_code(notify_db,
                                 notify_db_session,
                                 code_type,
                                 usr=usr,
                                 code=code)
    code.txt_code = txt_code
    return code


@pytest.fixture(scope='function')
def sample_service(
    notify_db,
    notify_db_session,
    service_name="Sample service",
    user=None,
    restricted=False,
    limit=1000,
    email_from=None,
    permissions=None,
    research_mode=None,
    free_sms_fragment_limit=250000
):
    if user is None:
        user = create_user()
    if email_from is None:
        email_from = service_name.lower().replace(' ', '.')

    data = {
        'name': service_name,
        'message_limit': limit,
        'restricted': restricted,
        'email_from': email_from,
        'created_by': user,
        'free_sms_fragment_limit': free_sms_fragment_limit
    }
    service = Service.query.filter_by(name=service_name).first()
    if not service:
        service = Service(**data)
        dao_create_service(service, user, service_permissions=permissions)

        if research_mode:
            service.research_mode = research_mode

    else:
        if user not in service.users:
            dao_add_user_to_service(service, user)

    if permissions and INBOUND_SMS_TYPE in permissions:
        create_inbound_number('12345', service_id=service.id)

    return service


@pytest.fixture(scope='function')
def sample_service_full_permissions(notify_db, notify_db_session):
    return sample_service(
        notify_db,
        notify_db_session,
        # ensure name doesn't clash with regular sample service
        service_name="sample service full permissions",
        permissions=SERVICE_PERMISSION_TYPES
    )


@pytest.fixture(scope='function')
def sample_service_custom_letter_contact_block(notify_db, notify_db_session):
    service = sample_service(notify_db, notify_db_session)
    create_letter_contact(service, contact_block='((contact block))')
    return service


@pytest.fixture(scope='function')
def sample_template(
    notify_db,
    notify_db_session,
    template_name="Template Name",
    template_type="sms",
    content="This is a template:\nwith a newline",
    archived=False,
    subject_line='Subject',
    user=None,
    service=None,
    created_by=None,
    process_type='normal',
    permissions=[EMAIL_TYPE, SMS_TYPE]
):
    if user is None:
        user = create_user()
    if service is None:
        service = sample_service(notify_db, notify_db_session, permissions=permissions)
    if created_by is None:
        created_by = create_user()

    data = {
        'name': template_name,
        'template_type': template_type,
        'content': content,
        'service': service,
        'created_by': created_by,
        'archived': archived,
        'process_type': process_type
    }
    if template_type in ['email', 'letter']:
        data.update({
            'subject': subject_line
        })
    template = Template(**data)
    dao_create_template(template)

    return template


@pytest.fixture(scope='function')
def sample_template_without_sms_permission(notify_db, notify_db_session):
    return sample_template(notify_db, notify_db_session, permissions=[EMAIL_TYPE])


@pytest.fixture(scope='function')
def sample_template_without_letter_permission(notify_db, notify_db_session):
    return sample_template(notify_db, notify_db_session, template_type="letter", permissions=[EMAIL_TYPE])


@pytest.fixture(scope='function')
def sample_template_with_placeholders(notify_db, notify_db_session):
    # deliberate space and title case in placeholder
    return sample_template(notify_db, notify_db_session, content="Hello (( Name))\nYour thing is due soon")


@pytest.fixture(scope='function')
def sample_sms_template_with_html(notify_db, notify_db_session):
    # deliberate space and title case in placeholder
    return sample_template(notify_db, notify_db_session, content=(
        "Hello (( Name))\nHere is <em>some HTML</em> & entities"
    ))


@pytest.fixture(scope='function')
def sample_email_template(
        notify_db,
        notify_db_session,
        template_name="Email Template Name",
        template_type="email",
        user=None,
        content="This is a template",
        subject_line='Email Subject',
        service=None,
        permissions=[EMAIL_TYPE, SMS_TYPE]):
    if user is None:
        user = create_user()
    if service is None:
        service = sample_service(notify_db, notify_db_session, permissions=permissions)
    data = {
        'name': template_name,
        'template_type': template_type,
        'content': content,
        'service': service,
        'created_by': user,
        'subject': subject_line
    }
    template = Template(**data)
    dao_create_template(template)
    return template


@pytest.fixture(scope='function')
def sample_template_without_email_permission(notify_db, notify_db_session):
    return sample_email_template(notify_db, notify_db_session, permissions=[SMS_TYPE])


@pytest.fixture
def sample_letter_template(sample_service_full_permissions):
    return create_template(sample_service_full_permissions, template_type=LETTER_TYPE)


@pytest.fixture
def sample_trial_letter_template(sample_service_full_permissions):
    sample_service_full_permissions.restricted = True
    return create_template(sample_service_full_permissions, template_type=LETTER_TYPE)


@pytest.fixture(scope='function')
def sample_email_template_with_placeholders(notify_db, notify_db_session):
    return sample_email_template(
        notify_db,
        notify_db_session,
        content="Hello ((name))\nThis is an email from GOV.UK",
        subject_line="((name))")


@pytest.fixture(scope='function')
def sample_email_template_with_html(notify_db, notify_db_session):
    return sample_email_template(
        notify_db,
        notify_db_session,
        content="Hello ((name))\nThis is an email from GOV.UK with <em>some HTML</em>",
        subject_line="((name)) <em>some HTML</em>")


@pytest.fixture(scope='function')
def sample_api_key(notify_db,
                   notify_db_session,
                   service=None,
                   key_type=KEY_TYPE_NORMAL,
                   name=None):
    if service is None:
        service = sample_service(notify_db, notify_db_session)
    data = {'service': service, 'name': name or uuid.uuid4(), 'created_by': service.created_by, 'key_type': key_type}
    api_key = ApiKey(**data)
    save_model_api_key(api_key)
    return api_key


@pytest.fixture(scope='function')
def sample_test_api_key(notify_db, notify_db_session, service=None):
    return sample_api_key(notify_db, notify_db_session, service, KEY_TYPE_TEST)


@pytest.fixture(scope='function')
def sample_team_api_key(notify_db, notify_db_session, service=None):
    return sample_api_key(notify_db, notify_db_session, service, KEY_TYPE_TEAM)


@pytest.fixture(scope='function')
def sample_job(
    notify_db,
    notify_db_session,
    service=None,
    template=None,
    notification_count=1,
    created_at=None,
    job_status='pending',
    scheduled_for=None,
    processing_started=None,
    original_file_name='some.csv'
):
    if service is None:
        service = sample_service(notify_db, notify_db_session)
    if template is None:
        template = sample_template(notify_db, notify_db_session,
                                   service=service)
    data = {
        'id': uuid.uuid4(),
        'service_id': service.id,
        'service': service,
        'template_id': template.id,
        'template_version': template.version,
        'original_file_name': original_file_name,
        'notification_count': notification_count,
        'created_at': created_at or datetime.utcnow(),
        'created_by': service.created_by,
        'job_status': job_status,
        'scheduled_for': scheduled_for,
        'processing_started': processing_started
    }
    job = Job(**data)
    dao_create_job(job)
    return job


@pytest.fixture(scope='function')
def sample_job_with_placeholdered_template(
        notify_db,
        notify_db_session,
        service=None
):
    return sample_job(
        notify_db,
        notify_db_session,
        service=service,
        template=sample_template_with_placeholders(notify_db, notify_db_session)
    )


@pytest.fixture(scope='function')
def sample_scheduled_job(
    notify_db,
    notify_db_session,
    service=None
):
    return sample_job(
        notify_db,
        notify_db_session,
        service=service,
        template=sample_template_with_placeholders(notify_db, notify_db_session),
        scheduled_for=(datetime.utcnow() + timedelta(minutes=60)).isoformat(),
        job_status='scheduled'
    )


@pytest.fixture(scope='function')
def sample_email_job(notify_db,
                     notify_db_session,
                     service=None,
                     template=None):
    if service is None:
        service = sample_service(notify_db, notify_db_session)
    if template is None:
        template = sample_email_template(
            notify_db,
            notify_db_session,
            service=service)
    job_id = uuid.uuid4()
    data = {
        'id': job_id,
        'service_id': service.id,
        'service': service,
        'template_id': template.id,
        'template_version': template.version,
        'original_file_name': 'some.csv',
        'notification_count': 1,
        'created_by': service.created_by
    }
    job = Job(**data)
    dao_create_job(job)
    return job


@pytest.fixture
def sample_letter_job(sample_letter_template):
    service = sample_letter_template.service
    data = {
        'id': uuid.uuid4(),
        'service_id': service.id,
        'service': service,
        'template_id': sample_letter_template.id,
        'template_version': sample_letter_template.version,
        'original_file_name': 'some.csv',
        'notification_count': 1,
        'created_at': datetime.utcnow(),
        'created_by': service.created_by,
    }
    job = Job(**data)
    dao_create_job(job)
    return job


@pytest.fixture(scope='function')
def sample_notification_with_job(
        notify_db,
        notify_db_session,
        service=None,
        template=None,
        job=None,
        job_row_number=None,
        to_field=None,
        status='created',
        reference=None,
        created_at=None,
        sent_at=None,
        billable_units=1,
        personalisation=None,
        api_key=None,
        key_type=KEY_TYPE_NORMAL
):
    if job is None:
        job = sample_job(notify_db, notify_db_session, service=service, template=template)
    return sample_notification(
        notify_db,
        notify_db_session,
        service,
        template,
        job=job,
        job_row_number=job_row_number if job_row_number is not None else None,
        to_field=to_field,
        status=status,
        reference=reference,
        created_at=created_at,
        sent_at=sent_at,
        billable_units=billable_units,
        personalisation=personalisation,
        api_key=api_key,
        key_type=key_type
    )


@pytest.fixture(scope='function')
def sample_notification(
    notify_db,
    notify_db_session,
    service=None,
    template=None,
    job=None,
    job_row_number=None,
    to_field=None,
    status='created',
    reference=None,
    created_at=None,
    sent_at=None,
    billable_units=1,
    personalisation=None,
    api_key=None,
    key_type=KEY_TYPE_NORMAL,
    sent_by=None,
    client_reference=None,
    rate_multiplier=1.0,
    scheduled_for=None,
    normalised_to=None
):
    if created_at is None:
        created_at = datetime.utcnow()
    if service is None:
        service = sample_service(notify_db, notify_db_session)
    if template is None:
        template = sample_template(notify_db, notify_db_session, service=service)

    if job is None and api_key is None:
        # we didn't specify in test - lets create it
        api_key = ApiKey.query.filter(ApiKey.service == template.service, ApiKey.key_type == key_type).first()
        if not api_key:
            api_key = create_api_key(template.service, key_type=key_type)

    notification_id = uuid.uuid4()

    if to_field:
        to = to_field
    else:
        to = '+447700900855'

    data = {
        'id': notification_id,
        'to': to,
        'job_id': job.id if job else None,
        'job': job,
        'service_id': service.id,
        'service': service,
        'template_id': template.id,
        'template_version': template.version,
        'status': status,
        'reference': reference,
        'created_at': created_at,
        'sent_at': sent_at,
        'billable_units': billable_units,
        'personalisation': personalisation,
        'notification_type': template.template_type,
        'api_key': api_key,
        'api_key_id': api_key and api_key.id,
        'key_type': api_key.key_type if api_key else key_type,
        'sent_by': sent_by,
        'updated_at': created_at if status in NOTIFICATION_STATUS_TYPES_COMPLETED else None,
        'client_reference': client_reference,
        'rate_multiplier': rate_multiplier,
        'normalised_to': normalised_to
    }
    if job_row_number is not None:
        data['job_row_number'] = job_row_number
    notification = Notification(**data)
    dao_create_notification(notification)
    if scheduled_for:
        scheduled_notification = ScheduledNotification(id=uuid.uuid4(),
                                                       notification_id=notification.id,
                                                       scheduled_for=datetime.strptime(scheduled_for,
                                                                                       "%Y-%m-%d %H:%M"))
        if status != 'created':
            scheduled_notification.pending = False
        db.session.add(scheduled_notification)
        db.session.commit()

    return notification


@pytest.fixture
def sample_letter_notification(sample_letter_template):
    address = {
        'address_line_1': 'A1',
        'address_line_2': 'A2',
        'address_line_3': 'A3',
        'address_line_4': 'A4',
        'address_line_5': 'A5',
        'address_line_6': 'A6',
        'postcode': 'A_POST'
    }
    return create_notification(sample_letter_template, personalisation=address)


@pytest.fixture(scope='function')
def sample_notification_with_api_key(notify_db, notify_db_session):
    notification = sample_notification(notify_db, notify_db_session)
    notification.api_key = sample_api_key(
        notify_db,
        notify_db_session,
        name='Test key'
    )
    notification.api_key_id = notification.api_key.id
    return notification


@pytest.fixture(scope='function')
def sample_email_notification(notify_db, notify_db_session):
    created_at = datetime.utcnow()
    service = sample_service(notify_db, notify_db_session)
    template = sample_email_template(notify_db, notify_db_session, service=service)
    job = sample_job(notify_db, notify_db_session, service=service, template=template)

    notification_id = uuid.uuid4()

    to = 'foo@bar.com'

    data = {
        'id': notification_id,
        'to': to,
        'job_id': job.id,
        'job': job,
        'service_id': service.id,
        'service': service,
        'template_id': template.id,
        'template_version': template.version,
        'status': 'created',
        'reference': None,
        'created_at': created_at,
        'billable_units': 0,
        'personalisation': None,
        'notification_type': template.template_type,
        'api_key_id': None,
        'key_type': KEY_TYPE_NORMAL,
        'job_row_number': 1
    }
    notification = Notification(**data)
    dao_create_notification(notification)
    return notification


@pytest.fixture(scope='function')
def mock_statsd_inc(mocker):
    return mocker.patch('app.statsd_client.incr')


@pytest.fixture(scope='function')
def mock_statsd_timing(mocker):
    return mocker.patch('app.statsd_client.timing')


@pytest.fixture(scope='function')
def sample_notification_history(
    notify_db,
    notify_db_session,
    sample_template,
    status='created',
    created_at=None,
    notification_type=None,
    key_type=KEY_TYPE_NORMAL,
    sent_at=None,
    api_key=None
):
    if created_at is None:
        created_at = datetime.utcnow()

    if sent_at is None:
        sent_at = datetime.utcnow()

    if notification_type is None:
        notification_type = sample_template.template_type

    if not api_key:
        api_key = create_api_key(sample_template.service, key_type=key_type)

    notification_history = NotificationHistory(
        id=uuid.uuid4(),
        service=sample_template.service,
        template_id=sample_template.id,
        template_version=sample_template.version,
        status=status,
        created_at=created_at,
        notification_type=notification_type,
        key_type=key_type,
        api_key=api_key,
        api_key_id=api_key and api_key.id,
        sent_at=sent_at
    )
    notify_db.session.add(notification_history)
    notify_db.session.commit()

    return notification_history


@pytest.fixture(scope='function')
def mock_celery_send_sms_code(mocker):
    return mocker.patch('app.celery.tasks.send_sms_code.apply_async')


@pytest.fixture(scope='function')
def mock_celery_email_registration_verification(mocker):
    return mocker.patch('app.celery.tasks.email_registration_verification.apply_async')


@pytest.fixture(scope='function')
def mock_celery_send_email(mocker):
    return mocker.patch('app.celery.tasks.send_email.apply_async')


@pytest.fixture(scope='function')
def mock_encryption(mocker):
    return mocker.patch('app.encryption.encrypt', return_value="something_encrypted")


@pytest.fixture(scope='function')
def sample_invited_user(notify_db,
                        notify_db_session,
                        service=None,
                        to_email_address=None):

    if service is None:
        service = sample_service(notify_db, notify_db_session)
    if to_email_address is None:
        to_email_address = 'invited_user@digital.gov.uk'

    from_user = service.users[0]

    data = {
        'service': service,
        'email_address': to_email_address,
        'from_user': from_user,
        'permissions': 'send_messages,manage_service,manage_api_keys'
    }
    invited_user = InvitedUser(**data)
    save_invited_user(invited_user)
    return invited_user


@pytest.fixture(scope='function')
def sample_permission(notify_db,
                      notify_db_session,
                      service=None,
                      user=None,
                      permission="manage_settings"):
    if user is None:
        user = create_user()
    data = {
        'user': user,
        'permission': permission
    }
    if service is None:
        service = sample_service(notify_db, notify_db_session)
    if service:
        data['service'] = service
    p_model = Permission.query.filter_by(
        user=user,
        service=service,
        permission=permission).first()
    if not p_model:
        p_model = Permission(**data)
        db.session.add(p_model)
        db.session.commit()
    return p_model


@pytest.fixture(scope='function')
def sample_user_service_permission(
    notify_db, notify_db_session, service=None, user=None, permission="manage_settings"
):
    if user is None:
        user = create_user()
    if service is None:
        service = sample_service(notify_db, notify_db_session, user=user)
    data = {
        'user': user,
        'service': service,
        'permission': permission
    }
    p_model = Permission.query.filter_by(
        user=user,
        service=service,
        permission=permission).first()
    if not p_model:
        p_model = Permission(**data)
        db.session.add(p_model)
        db.session.commit()
    return p_model


@pytest.fixture(scope='function')
def fake_uuid():
    return "6ce466d0-fd6a-11e5-82f5-e0accb9d11a6"


@pytest.fixture(scope='function')
def current_sms_provider():
    return ProviderDetails.query.filter_by(
        notification_type='sms'
    ).order_by(
        asc(ProviderDetails.priority)
    ).first()


@pytest.fixture(scope='function')
def ses_provider():
    return ProviderDetails.query.filter_by(identifier='ses').one()


@pytest.fixture(scope='function')
def firetext_provider():
    return ProviderDetails.query.filter_by(identifier='firetext').one()


@pytest.fixture(scope='function')
def mmg_provider():
    return ProviderDetails.query.filter_by(identifier='mmg').one()


@pytest.fixture(scope='function')
def sample_provider_statistics(notify_db,
                               notify_db_session,
                               sample_service,
                               provider=None,
                               day=None,
                               unit_count=1):

    if provider is None:
        provider = ProviderDetails.query.filter_by(identifier='mmg').first()
    if day is None:
        day = date.today()
    stats = ProviderStatistics(
        service=sample_service,
        provider_id=provider.id,
        day=day,
        unit_count=unit_count)
    notify_db.session.add(stats)
    notify_db.session.commit()
    return stats


@pytest.fixture(scope='function')
def mock_firetext_client(mocker, statsd_client=None):
    client = FiretextClient()
    statsd_client = statsd_client or mocker.Mock()
    current_app = mocker.Mock(config={
        'FIRETEXT_API_KEY': 'foo',
        'FROM_NUMBER': 'bar'
    })
    client.init_app(current_app, statsd_client)
    return client


@pytest.fixture(scope='function')
def sms_code_template(notify_db,
                      notify_db_session):
    service, user = notify_service(notify_db, notify_db_session)
    return create_custom_template(
        service=service,
        user=user,
        template_config_name='SMS_CODE_TEMPLATE_ID',
        content='((verify_code))',
        template_type='sms'
    )


@pytest.fixture(scope='function')
def email_2fa_code_template(notify_db, notify_db_session):
    service, user = notify_service(notify_db, notify_db_session)
    return create_custom_template(
        service=service,
        user=user,
        template_config_name='EMAIL_2FA_TEMPLATE_ID',
        content=(
            'Hi ((name)),'
            ''
            'To sign in to GOV.​UK Notify please open this link:'
            '((url))'
        ),
        subject='Sign in to GOV.UK Notify',
        template_type='email'
    )


@pytest.fixture(scope='function')
def email_verification_template(notify_db,
                                notify_db_session):
    service, user = notify_service(notify_db, notify_db_session)
    return create_custom_template(
        service=service,
        user=user,
        template_config_name='NEW_USER_EMAIL_VERIFICATION_TEMPLATE_ID',
        content='((user_name)) use ((url)) to complete registration',
        template_type='email'
    )


@pytest.fixture(scope='function')
def invitation_email_template(notify_db,
                              notify_db_session):
    service, user = notify_service(notify_db, notify_db_session)
    content = '((user_name)) is invited to Notify by ((service_name)) ((url)) to complete registration',
    return create_custom_template(
        service=service,
        user=user,
        template_config_name='INVITATION_EMAIL_TEMPLATE_ID',
        content=content,
        subject='Invitation to ((service_name))',
        template_type='email'
    )


@pytest.fixture(scope='function')
def password_reset_email_template(notify_db,
                                  notify_db_session):
    service, user = notify_service(notify_db, notify_db_session)

    return create_custom_template(
        service=service,
        user=user,
        template_config_name='PASSWORD_RESET_TEMPLATE_ID',
        content='((user_name)) you can reset password by clicking ((url))',
        subject='Reset your password',
        template_type='email'
    )


@pytest.fixture(scope='function')
def already_registered_template(notify_db,
                                notify_db_session):
    service, user = notify_service(notify_db, notify_db_session)

    content = """Sign in here: ((signin_url)) If you’ve forgotten your password,
                          you can reset it here: ((forgot_password_url)) feedback:((feedback_url))"""
    return create_custom_template(
        service=service, user=user,
        template_config_name='ALREADY_REGISTERED_EMAIL_TEMPLATE_ID',
        content=content,
        template_type='email'
    )


@pytest.fixture(scope='function')
def change_email_confirmation_template(notify_db,
                                       notify_db_session):
    service, user = notify_service(notify_db, notify_db_session)
    content = """Hi ((name)),
              Click this link to confirm your new email address:
              ((url))
              If you didn’t try to change the email address for your GOV.UK Notify account, let us know here:
              ((feedback_url))"""
    template = create_custom_template(
        service=service,
        user=user,
        template_config_name='CHANGE_EMAIL_CONFIRMATION_TEMPLATE_ID',
        content=content,
        template_type='email'
    )
    return template


def create_custom_template(service, user, template_config_name, template_type, content='', subject=None):
    template = Template.query.get(current_app.config[template_config_name])
    if not template:
        data = {
            'id': current_app.config[template_config_name],
            'name': template_config_name,
            'template_type': template_type,
            'content': content,
            'service': service,
            'created_by': user,
            'subject': subject,
            'archived': False
        }
        template = Template(**data)
        db.session.add(template)
        db.session.add(create_history(template, TemplateHistory))
        db.session.commit()
    return template


def notify_service(notify_db, notify_db_session):
    user = create_user()
    service = Service.query.get(current_app.config['NOTIFY_SERVICE_ID'])
    if not service:
        service = Service(
            name='Notify Service',
            message_limit=1000,
            restricted=False,
            email_from='notify.service',
            created_by=user,
            prefix_sms=False,
        )
        dao_create_service(service=service, service_id=current_app.config['NOTIFY_SERVICE_ID'], user=user)

        data = {
            'service': service,
            'email_address': "notify@gov.uk",
            'is_default': True,
        }
        reply_to = ServiceEmailReplyTo(**data)

        db.session.add(reply_to)
        db.session.commit()

    return service, user


@pytest.fixture(scope='function')
def sample_service_whitelist(notify_db, notify_db_session, service=None, email_address=None, mobile_number=None):
    if service is None:
        service = sample_service(notify_db, notify_db_session)

    if email_address:
        whitelisted_user = ServiceWhitelist.from_string(service.id, EMAIL_TYPE, email_address)
    elif mobile_number:
        whitelisted_user = ServiceWhitelist.from_string(service.id, MOBILE_TYPE, mobile_number)
    else:
        whitelisted_user = ServiceWhitelist.from_string(service.id, EMAIL_TYPE, 'whitelisted_user@digital.gov.uk')

    notify_db.session.add(whitelisted_user)
    notify_db.session.commit()
    return whitelisted_user


@pytest.fixture(scope='function')
def sample_provider_rate(notify_db, notify_db_session, valid_from=None, rate=None, provider_identifier=None):
    create_provider_rates(
        provider_identifier=provider_identifier if provider_identifier is not None else 'mmg',
        valid_from=valid_from if valid_from is not None else datetime.utcnow(),
        rate=rate if rate is not None else 1,
    )


@pytest.fixture
def sample_inbound_numbers(notify_db, notify_db_session, sample_service):
    service = create_service(service_name='sample service 2')
    inbound_numbers = []
    inbound_numbers.append(create_inbound_number(number='1', provider='mmg'))
    inbound_numbers.append(create_inbound_number(number='2', provider='mmg', active=False, service_id=service.id))
    inbound_numbers.append(create_inbound_number(number='3', provider='firetext', service_id=sample_service.id))
    return inbound_numbers


@pytest.fixture
def sample_inbound_sms(notify_db, notify_db_session, sample_service):
    return create_inbound_sms(sample_service)


@pytest.fixture
def restore_provider_details(notify_db, notify_db_session):
    """
    We view ProviderDetails as a static in notify_db_session, since we don't modify it... except we do, we updated
    priority. This fixture is designed to be used in tests that will knowingly touch provider details, to restore them
    to previous state.

    Note: This doesn't technically require notify_db_session (only notify_db), but kept as a requirement to encourage
    good usage - if you're modifying ProviderDetails' state then it's good to clear down the rest of the DB too
    """
    existing_provider_details = ProviderDetails.query.all()
    existing_provider_details_history = ProviderDetailsHistory.query.all()
    # make transient removes the objects from the session - since we'll want to delete them later
    for epd in existing_provider_details:
        make_transient(epd)
    for epdh in existing_provider_details_history:
        make_transient(epdh)

    yield

    # also delete these as they depend on provider_details
    ProviderRates.query.delete()
    ProviderDetails.query.delete()
    ProviderDetailsHistory.query.delete()
    notify_db.session.commit()
    notify_db.session.add_all(existing_provider_details)
    notify_db.session.add_all(existing_provider_details_history)
    notify_db.session.commit()


@pytest.fixture
def admin_request(client):
    class AdminRequest:

        @staticmethod
        def get(endpoint, _expected_status=200, **endpoint_kwargs):
            resp = client.get(
                url_for(endpoint, **(endpoint_kwargs or {})),
                headers=[create_authorization_header()]
            )
            json_resp = json.loads(resp.get_data(as_text=True))
            assert resp.status_code == _expected_status
            return json_resp

        @staticmethod
        def post(endpoint, _data=None, _expected_status=200, **endpoint_kwargs):
            resp = client.post(
                url_for(endpoint, **(endpoint_kwargs or {})),
                data=json.dumps(_data),
                headers=[('Content-Type', 'application/json'), create_authorization_header()]
            )
            if resp.get_data():
                json_resp = json.loads(resp.get_data(as_text=True))
            else:
                json_resp = None
            assert resp.status_code == _expected_status
            return json_resp

        @staticmethod
        def delete(endpoint, _expected_status=204, **endpoint_kwargs):
            resp = client.delete(
                url_for(endpoint, **(endpoint_kwargs or {})),
                headers=[create_authorization_header()]
            )
            json_resp = json.loads(resp.get_data(as_text=True))
            assert resp.status_code == _expected_status, json_resp
            return json_resp

    return AdminRequest


def datetime_in_past(days=0, seconds=0):
    return datetime.now(tz=pytz.utc) - timedelta(days=days, seconds=seconds)