import uuid
from datetime import datetime

import pytest
from flask import current_app
from freezegun import freeze_time
from sqlalchemy.exc import SQLAlchemyError

from app.dao.organization_dao import (
    dao_add_service_to_organization,
    dao_add_user_to_organization,
)
from app.dao.services_dao import dao_archive_service
from app.models import AnnualBilling, Organization
from tests.app.db import (
    create_annual_billing,
    create_domain,
    create_email_branding,
    create_ft_billing,
    create_organization,
    create_service,
    create_template,
    create_user,
)


def test_get_all_organizations(admin_request, notify_db_session):
    create_organization(name='inactive org', active=False, organization_type='federal')
    create_organization(name='active org', domains=['example.com'])

    response = admin_request.get(
        'organization.get_organizations',
        _expected_status=200
    )

    assert len(response) == 2
    assert set(response[0].keys()) == set(response[1].keys()) == {
        'name',
        'id',
        'active',
        'count_of_live_services',
        'domains',
        'organization_type',
    }
    assert response[0]['name'] == 'active org'
    assert response[0]['active'] is True
    assert response[0]['count_of_live_services'] == 0
    assert response[0]['domains'] == ['example.com']
    assert response[0]['organization_type'] is None
    assert response[1]['name'] == 'inactive org'
    assert response[1]['active'] is False
    assert response[1]['count_of_live_services'] == 0
    assert response[1]['domains'] == []
    assert response[1]['organization_type'] == 'federal'


def test_get_organization_by_id(admin_request, notify_db_session):
    org = create_organization()

    response = admin_request.get(
        'organization.get_organization_by_id',
        _expected_status=200,
        organization_id=org.id
    )

    assert set(response.keys()) == {
        'id',
        'name',
        'active',
        'organization_type',
        'agreement_signed',
        'agreement_signed_at',
        'agreement_signed_by_id',
        'agreement_signed_version',
        'agreement_signed_on_behalf_of_name',
        'agreement_signed_on_behalf_of_email_address',
        'email_branding_id',
        'domains',
        'request_to_go_live_notes',
        'count_of_live_services',
        'notes',
        'billing_contact_names',
        'billing_contact_email_addresses',
        'billing_reference',
        'purchase_order_number'
    }
    assert response['id'] == str(org.id)
    assert response['name'] == 'test_org_1'
    assert response['active'] is True
    assert response['organization_type'] is None
    assert response['agreement_signed'] is None
    assert response['agreement_signed_by_id'] is None
    assert response['agreement_signed_version'] is None
    assert response['email_branding_id'] is None
    assert response['domains'] == []
    assert response['request_to_go_live_notes'] is None
    assert response['count_of_live_services'] == 0
    assert response['agreement_signed_on_behalf_of_name'] is None
    assert response['agreement_signed_on_behalf_of_email_address'] is None
    assert response['notes'] is None
    assert response['billing_contact_names'] is None
    assert response['billing_contact_email_addresses'] is None
    assert response['billing_reference'] is None
    assert response['purchase_order_number'] is None


def test_get_organization_by_id_returns_domains(admin_request, notify_db_session):

    org = create_organization(domains=[
        'foo.gov.uk',
        'bar.gov.uk',
    ])

    response = admin_request.get(
        'organization.get_organization_by_id',
        _expected_status=200,
        organization_id=org.id
    )

    assert set(response['domains']) == {
        'foo.gov.uk',
        'bar.gov.uk',
    }


@pytest.mark.parametrize('domain, expected_status', (
    ('foo.gov.uk', 200),
    ('bar.gov.uk', 200),
    ('oof.gov.uk', 404),
    ('rab.gov.uk', 200),
    (None, 400),
    ('personally.identifying.information@example.com', 400),
))
def test_get_organization_by_domain(
    admin_request,
    notify_db_session,
    domain,
    expected_status
):
    org = create_organization()
    other_org = create_organization('Other organization')
    create_domain('foo.gov.uk', org.id)
    create_domain('bar.gov.uk', org.id)
    create_domain('rab.gov.uk', other_org.id)

    response = admin_request.get(
        'organization.get_organization_by_domain',
        _expected_status=expected_status,
        domain=domain,
    )

    if domain == 'rab.gov.uk' and expected_status == 200:
        assert response['id'] == str(other_org.id)
    elif expected_status == 200:
        assert response['id'] == str(org.id)
    else:
        assert response['result'] == 'error'


def test_post_create_organization(admin_request, notify_db_session):
    data = {
        'name': 'test organization',
        'active': True,
        'organization_type': 'state',
    }

    response = admin_request.post(
        'organization.create_organization',
        _data=data,
        _expected_status=201
    )

    organizations = Organization.query.all()

    assert data['name'] == response['name']
    assert data['active'] == response['active']
    assert data['organization_type'] == response['organization_type']

    assert len(organizations) == 1
    # check that for non-nhs orgs, default branding is not set
    assert organizations[0].email_branding_id is None


@pytest.mark.parametrize('org_type', ["nhs_central", "nhs_local", "nhs_gp"])
@pytest.mark.skip(reason='Update for TTS')
def test_post_create_organization_sets_default_nhs_branding_for_nhs_orgs(
    admin_request, notify_db_session, nhs_email_branding, org_type
):
    data = {
        'name': 'test organization',
        'active': True,
        'organization_type': org_type,
    }

    admin_request.post(
        'organization.create_organization',
        _data=data,
        _expected_status=201
    )

    organizations = Organization.query.all()

    assert len(organizations) == 1
    assert organizations[0].email_branding_id == uuid.UUID(current_app.config['NHS_EMAIL_BRANDING_ID'])


def test_post_create_organization_existing_name_raises_400(admin_request, sample_organization):
    organization = Organization.query.all()
    assert len(organization) == 1

    data = {
        'name': sample_organization.name,
        'active': True,
        'organization_type': 'federal',
    }

    response = admin_request.post(
        'organization.create_organization',
        _data=data,
        _expected_status=400
    )

    organization = Organization.query.all()

    assert len(organization) == 1
    assert response['message'] == 'Organization name already exists'


def test_post_create_organization_works(admin_request, sample_organization):
    organization = Organization.query.all()
    assert len(organization) == 1

    data = {
        'name': "org 2",
        'active': True,
        'organization_type': 'federal',
    }

    admin_request.post(
        'organization.create_organization',
        _data=data,
        _expected_status=201
    )

    organization = Organization.query.all()

    assert len(organization) == 2


@pytest.mark.parametrize('data, expected_error', (
    ({
        'active': False,
        'organization_type': 'federal',
    }, 'name is a required property'),
    ({
        'active': False,
        'name': 'Service name',
    }, 'organization_type is a required property'),
    ({
        'active': False,
        'name': 'Service name',
        'organization_type': 'foo',
    }, (
        'organization_type foo is not one of '
        '[federal, state, other]'
    )),
))
def test_post_create_organization_with_missing_data_gives_validation_error(
    admin_request,
    notify_db_session,
    data,
    expected_error,
):
    response = admin_request.post(
        'organization.create_organization',
        _data=data,
        _expected_status=400
    )

    assert len(response['errors']) == 1
    assert response['errors'][0]['error'] == 'ValidationError'
    assert response['errors'][0]['message'] == expected_error


def test_post_update_organization_updates_fields(
    admin_request,
    notify_db_session,
):
    org = create_organization()
    data = {
        'name': 'new organization name',
        'active': False,
        'organization_type': 'federal',
    }

    admin_request.post(
        'organization.update_organization',
        _data=data,
        organization_id=org.id,
        _expected_status=204
    )

    organization = Organization.query.all()

    assert len(organization) == 1
    assert organization[0].id == org.id
    assert organization[0].name == data['name']
    assert organization[0].active == data['active']
    assert organization[0].domains == []
    assert organization[0].organization_type == 'federal'


@pytest.mark.parametrize('domain_list', (
    ['example.com'],
    ['example.com', 'example.org', 'example.net'],
    [],
))
def test_post_update_organization_updates_domains(
    admin_request,
    notify_db_session,
    domain_list,
):
    org = create_organization(name='test_org_2')
    data = {
        'domains': domain_list
    }

    admin_request.post(
        'organization.update_organization',
        _data=data,
        organization_id=org.id,
        _expected_status=204
    )

    organization = Organization.query.all()

    assert len(organization) == 1
    assert [
        domain.domain for domain in organization[0].domains
    ] == domain_list


def test_update_other_organization_attributes_doesnt_clear_domains(
    admin_request,
    notify_db_session,
):
    org = create_organization(name='test_org_2')
    create_domain('example.gov.uk', org.id)

    admin_request.post(
        'organization.update_organization',
        _data={'domains': ['example.gov.uk']},
        organization_id=org.id,
        _expected_status=204
    )

    assert [
        domain.domain for domain in org.domains
    ] == [
        'example.gov.uk'
    ]


@pytest.mark.parametrize('new_org_type', ["nhs_central", "nhs_local", "nhs_gp"])
@pytest.mark.skip(reason='Update for TTS')
def test_post_update_organization_to_nhs_type_updates_branding_if_none_present(
    admin_request,
    nhs_email_branding,
    notify_db_session,
    new_org_type
):
    org = create_organization(organization_type='central')
    data = {
        'organization_type': new_org_type,
    }

    admin_request.post(
        'organization.update_organization',
        _data=data,
        organization_id=org.id,
        _expected_status=204
    )

    organization = Organization.query.all()

    assert len(organization) == 1
    assert organization[0].id == org.id
    assert organization[0].organization_type == new_org_type
    assert organization[0].email_branding_id == uuid.UUID(current_app.config['NHS_EMAIL_BRANDING_ID'])


@pytest.mark.parametrize('new_org_type', ["nhs_central", "nhs_local", "nhs_gp"])
@pytest.mark.skip(reason='Update for TTS')
def test_post_update_organization_to_nhs_type_does_not_update_branding_if_default_branding_set(
    admin_request,
    nhs_email_branding,
    notify_db_session,
    new_org_type
):
    current_branding = create_email_branding(
        logo='example.png',
        name='custom branding'
    )
    org = create_organization(organization_type='central', email_branding_id=current_branding.id)
    data = {
        'organization_type': new_org_type,
    }

    admin_request.post(
        'organization.update_organization',
        _data=data,
        organization_id=org.id,
        _expected_status=204
    )

    organization = Organization.query.all()

    assert len(organization) == 1
    assert organization[0].id == org.id
    assert organization[0].organization_type == new_org_type
    assert organization[0].email_branding_id == current_branding.id


def test_update_organization_default_branding(
    admin_request,
    notify_db_session,
):

    org = create_organization(name='Test Organization')

    email_branding = create_email_branding()

    assert org.email_branding is None

    admin_request.post(
        'organization.update_organization',
        _data={
            'email_branding_id': str(email_branding.id),
        },
        organization_id=org.id,
        _expected_status=204
    )

    assert org.email_branding == email_branding


def test_post_update_organization_raises_400_on_existing_org_name(
        admin_request, sample_organization):
    org = create_organization()
    data = {
        'name': sample_organization.name,
        'active': False
    }

    response = admin_request.post(
        'organization.update_organization',
        _data=data,
        organization_id=org.id,
        _expected_status=400
    )

    assert response['message'] == 'Organization name already exists'


def test_post_update_organization_gives_404_status_if_org_does_not_exist(admin_request, notify_db_session):
    data = {'name': 'new organization name'}

    admin_request.post(
        'organization.update_organization',
        _data=data,
        organization_id='31d42ce6-3dac-45a7-95cb-94423d5ca03c',
        _expected_status=404
    )

    organization = Organization.query.all()

    assert not organization


def test_post_update_organization_returns_400_if_domain_is_duplicate(admin_request, notify_db_session):
    org = create_organization()
    org2 = create_organization(name='Second org')
    create_domain('same.com', org.id)

    data = {'domains': ['new.com', 'same.com']}

    response = admin_request.post(
        'organization.update_organization',
        _data=data,
        organization_id=org2.id,
        _expected_status=400
    )

    assert response['message'] == 'Domain already exists'


def test_post_update_organization_set_mou_doesnt_email_if_no_signed_by(
    sample_organization,
    admin_request,
    mocker
):
    queue_mock = mocker.patch('app.organization.rest.send_notification_to_queue')

    data = {'agreement_signed': True}

    admin_request.post(
        'organization.update_organization',
        _data=data,
        organization_id=sample_organization.id,
        _expected_status=204
    )

    assert queue_mock.called is False


@pytest.mark.parametrize('on_behalf_of_name, on_behalf_of_email_address, templates_and_recipients', [
    (
        None,
        None,
        {
            'MOU_SIGNER_RECEIPT_TEMPLATE_ID': 'notify@digital.cabinet-office.gov.uk',
        }
    ),
    (
        'Important Person',
        'important@person.com',
        {
            'MOU_SIGNED_ON_BEHALF_ON_BEHALF_RECEIPT_TEMPLATE_ID': 'important@person.com',
            'MOU_SIGNED_ON_BEHALF_SIGNER_RECEIPT_TEMPLATE_ID': 'notify@digital.cabinet-office.gov.uk',
        }
    ),
])
def test_post_update_organization_set_mou_emails_signed_by(
    sample_organization,
    admin_request,
    mou_signed_templates,
    mocker,
    sample_user,
    on_behalf_of_name,
    on_behalf_of_email_address,
    templates_and_recipients
):
    queue_mock = mocker.patch('app.organization.rest.send_notification_to_queue')
    sample_organization.agreement_signed_on_behalf_of_name = on_behalf_of_name
    sample_organization.agreement_signed_on_behalf_of_email_address = on_behalf_of_email_address

    admin_request.post(
        'organization.update_organization',
        _data={'agreement_signed': True, 'agreement_signed_by_id': str(sample_user.id)},
        organization_id=sample_organization.id,
        _expected_status=204
    )

    notifications = [x[0][0] for x in queue_mock.call_args_list]
    assert {n.template.name: n.to for n in notifications} == templates_and_recipients

    for n in notifications:
        # we pass in the same personalisation for all templates (though some templates don't use all fields)
        assert n.personalisation == {
            'mou_link': 'http://localhost:6012/agreement/agreement.pdf',
            'org_name': 'sample organization',
            'org_dashboard_link': 'http://localhost:6012/organizations/{}'.format(sample_organization.id),
            'signed_by_name': 'Test User',
            'on_behalf_of_name': on_behalf_of_name
        }


def test_post_link_service_to_organization(admin_request, sample_service):
    data = {
        'service_id': str(sample_service.id)
    }
    organization = create_organization(organization_type='federal')

    admin_request.post(
        'organization.link_service_to_organization',
        _data=data,
        organization_id=organization.id,
        _expected_status=204
    )
    assert len(organization.services) == 1
    assert sample_service.organization_type == 'federal'


@freeze_time('2021-09-24 13:30')
def test_post_link_service_to_organization_inserts_annual_billing(admin_request, sample_service):
    data = {
        'service_id': str(sample_service.id)
    }
    organization = create_organization(organization_type='federal')
    assert len(organization.services) == 0
    assert len(AnnualBilling.query.all()) == 0
    admin_request.post(
        'organization.link_service_to_organization',
        _data=data,
        organization_id=organization.id,
        _expected_status=204
    )

    annual_billing = AnnualBilling.query.all()
    assert len(annual_billing) == 1
    assert annual_billing[0].free_sms_fragment_limit == 150000


def test_post_link_service_to_organization_rollback_service_if_annual_billing_update_fails(
        admin_request, sample_service, mocker
):
    mocker.patch('app.dao.annual_billing_dao.dao_create_or_update_annual_billing_for_year',
                 side_effect=SQLAlchemyError)
    data = {
        'service_id': str(sample_service.id)
    }
    assert not sample_service.organization_type

    organization = create_organization(organization_type='federal')
    assert len(organization.services) == 0
    assert len(AnnualBilling.query.all()) == 0
    with pytest.raises(expected_exception=SQLAlchemyError):
        admin_request.post(
                'organization.link_service_to_organization',
                _data=data,
                organization_id=organization.id
            )
    assert not sample_service.organization_type
    assert len(organization.services) == 0
    assert len(AnnualBilling.query.all()) == 0


@freeze_time('2021-09-24 13:30')
def test_post_link_service_to_another_org(
        admin_request, sample_service, sample_organization):
    data = {
        'service_id': str(sample_service.id)
    }
    assert len(sample_organization.services) == 0
    assert not sample_service.organization_type
    admin_request.post(
        'organization.link_service_to_organization',
        _data=data,
        organization_id=sample_organization.id,
        _expected_status=204
    )

    assert len(sample_organization.services) == 1
    assert not sample_service.organization_type

    new_org = create_organization(organization_type='federal')
    admin_request.post(
        'organization.link_service_to_organization',
        _data=data,
        organization_id=new_org.id,
        _expected_status=204
    )
    assert not sample_organization.services
    assert len(new_org.services) == 1
    assert sample_service.organization_type == 'federal'
    annual_billing = AnnualBilling.query.all()
    assert len(annual_billing) == 1
    assert annual_billing[0].free_sms_fragment_limit == 150000


def test_post_link_service_to_organization_nonexistent_organization(
        admin_request, sample_service, fake_uuid):
    data = {
        'service_id': str(sample_service.id)
    }

    admin_request.post(
        'organization.link_service_to_organization',
        _data=data,
        organization_id=fake_uuid,
        _expected_status=404
    )


def test_post_link_service_to_organization_nonexistent_service(
        admin_request, sample_organization, fake_uuid):
    data = {
        'service_id': fake_uuid
    }

    admin_request.post(
        'organization.link_service_to_organization',
        _data=data,
        organization_id=str(sample_organization.id),
        _expected_status=404
    )


def test_post_link_service_to_organization_missing_payload(
        admin_request, sample_organization, fake_uuid):
    admin_request.post(
        'organization.link_service_to_organization',
        organization_id=str(sample_organization.id),
        _expected_status=400
    )


def test_rest_get_organization_services(
        admin_request, sample_organization, sample_service):
    dao_add_service_to_organization(sample_service, sample_organization.id)
    response = admin_request.get(
        'organization.get_organization_services',
        organization_id=str(sample_organization.id),
        _expected_status=200
    )

    assert response == [sample_service.serialize_for_org_dashboard()]


def test_rest_get_organization_services_is_ordered_by_name(
        admin_request, sample_organization, sample_service):
    service_2 = create_service(service_name='service 2')
    service_1 = create_service(service_name='service 1')
    dao_add_service_to_organization(service_1, sample_organization.id)
    dao_add_service_to_organization(service_2, sample_organization.id)
    dao_add_service_to_organization(sample_service, sample_organization.id)

    response = admin_request.get(
        'organization.get_organization_services',
        organization_id=str(sample_organization.id),
        _expected_status=200
    )

    assert response[0]['name'] == sample_service.name
    assert response[1]['name'] == service_1.name
    assert response[2]['name'] == service_2.name


def test_rest_get_organization_services_inactive_services_at_end(
        admin_request, sample_organization):
    inactive_service = create_service(service_name='inactive service', active=False)
    service = create_service()
    inactive_service_1 = create_service(service_name='inactive service 1', active=False)

    dao_add_service_to_organization(inactive_service, sample_organization.id)
    dao_add_service_to_organization(service, sample_organization.id)
    dao_add_service_to_organization(inactive_service_1, sample_organization.id)

    response = admin_request.get(
        'organization.get_organization_services',
        organization_id=str(sample_organization.id),
        _expected_status=200
    )

    assert response[0]['name'] == service.name
    assert response[1]['name'] == inactive_service.name
    assert response[2]['name'] == inactive_service_1.name


def test_add_user_to_organization_returns_added_user(admin_request, sample_organization, sample_user):
    response = admin_request.post(
        'organization.add_user_to_organization',
        organization_id=str(sample_organization.id),
        user_id=str(sample_user.id),
        _expected_status=200
    )

    assert response['data']['id'] == str(sample_user.id)
    assert len(response['data']['organizations']) == 1
    assert response['data']['organizations'][0] == str(sample_organization.id)


def test_add_user_to_organization_returns_404_if_user_does_not_exist(admin_request, sample_organization):
    admin_request.post(
        'organization.add_user_to_organization',
        organization_id=str(sample_organization.id),
        user_id=str(uuid.uuid4()),
        _expected_status=404
    )


def test_remove_user_from_organization(admin_request, sample_organization, sample_user):
    dao_add_user_to_organization(organization_id=sample_organization.id, user_id=sample_user.id)

    admin_request.delete(
        'organization.remove_user_from_organization',
        organization_id=sample_organization.id,
        user_id=sample_user.id
    )

    assert sample_organization.users == []


def test_remove_user_from_organization_when_user_is_not_an_org_member(admin_request, sample_organization, sample_user):
    resp = admin_request.delete(
        'organization.remove_user_from_organization',
        organization_id=sample_organization.id,
        user_id=sample_user.id,
        _expected_status=404
    )

    assert resp == {
        'result': 'error',
        'message': 'User not found'
    }


def test_get_organization_users_returns_users_for_organization(admin_request, sample_organization):
    first = create_user(email='first@invited.com')
    second = create_user(email='another@invited.com')
    dao_add_user_to_organization(organization_id=sample_organization.id, user_id=first.id)
    dao_add_user_to_organization(organization_id=sample_organization.id, user_id=second.id)

    response = admin_request.get(
        'organization.get_organization_users',
        organization_id=sample_organization.id,
        _expected_status=200
    )

    assert len(response['data']) == 2
    assert response['data'][0]['id'] == str(first.id)


@freeze_time('2019-12-24 13:30')
def test_get_organization_services_usage(admin_request, notify_db_session):
    org = create_organization(name='Organization without live services')
    service = create_service()
    template = create_template(service=service)
    dao_add_service_to_organization(service=service, organization_id=org.id)
    create_annual_billing(service_id=service.id, free_sms_fragment_limit=10, financial_year_start=2019)
    create_ft_billing(local_date=datetime.utcnow().date(), template=template, billable_unit=19, rate=0.060,
                      notifications_sent=19)
    response = admin_request.get(
        'organization.get_organization_services_usage',
        organization_id=org.id,
        **{"year": 2019}
    )
    assert len(response) == 1
    assert len(response['services']) == 1
    service_usage = response['services'][0]
    assert service_usage['service_id'] == str(service.id)
    assert service_usage['service_name'] == service.name
    assert service_usage['chargeable_billable_sms'] == 9.0
    assert service_usage['emails_sent'] == 0
    assert service_usage['free_sms_limit'] == 10
    assert service_usage['sms_billable_units'] == 19
    assert service_usage['sms_remainder'] == 0
    assert service_usage['sms_cost'] == 0.54


@freeze_time('2020-02-24 13:30')
def test_get_organization_services_usage_sort_active_first(admin_request, notify_db_session):
    org = create_organization(name='Organization without live services')
    service = create_service(service_name='live service')
    archived_service = create_service(service_name='archived_service')
    template = create_template(service=service)
    dao_add_service_to_organization(service=service, organization_id=org.id)
    dao_add_service_to_organization(service=archived_service, organization_id=org.id)
    create_annual_billing(service_id=service.id, free_sms_fragment_limit=10, financial_year_start=2019)
    create_ft_billing(local_date=datetime.utcnow().date(), template=template, billable_unit=19, rate=0.060,
                      notifications_sent=19)
    response = admin_request.get(
        'organization.get_organization_services_usage',
        organization_id=org.id,
        **{"year": 2019}
    )
    assert len(response) == 1
    assert len(response['services']) == 2
    first_service = response['services'][0]
    assert first_service['service_id'] == str(archived_service.id)
    assert first_service['service_name'] == archived_service.name
    assert first_service['active'] is True
    last_service = response['services'][1]
    assert last_service['service_id'] == str(service.id)
    assert last_service['service_name'] == service.name
    assert last_service['active'] is True

    dao_archive_service(service_id=archived_service.id)
    response_after_archive = admin_request.get(
        'organization.get_organization_services_usage',
        organization_id=org.id,
        **{"year": 2019}
    )
    first_service = response_after_archive['services'][0]
    assert first_service['service_id'] == str(service.id)
    assert first_service['service_name'] == service.name
    assert first_service['active'] is True
    last_service = response_after_archive['services'][1]
    assert last_service['service_id'] == str(archived_service.id)
    assert last_service['service_name'] == archived_service.name
    assert last_service['active'] is False


def test_get_organization_services_usage_returns_400_if_year_is_invalid(admin_request):
    response = admin_request.get(
        'organization.get_organization_services_usage',
        organization_id=uuid.uuid4(),
        **{"year": 'not-a-valid-year'},
        _expected_status=400
    )
    assert response['message'] == 'No valid year provided'


def test_get_organization_services_usage_returns_400_if_year_is_empty(admin_request):
    response = admin_request.get(
        'organization.get_organization_services_usage',
        organization_id=uuid.uuid4(),
        _expected_status=400
    )
    assert response['message'] == 'No valid year provided'