from unittest.mock import ANY

import pytest
from flask import url_for

from app.models.user import User
from tests.conftest import normalize_spaces


def test_render_register_returns_template_with_form(
    client_request,
):
    client_request.logout()
    page = client_request.get_url('/register')

    assert page.find('input', attrs={'name': 'auth_type'}).attrs['value'] == 'sms_auth'
    assert page.select_one('#email_address')['spellcheck'] == 'false'
    assert page.select_one('#email_address')['autocomplete'] == 'email'
    assert page.select_one('#password')['autocomplete'] == 'new-password'
    assert 'Create an account' in page.text


def test_logged_in_user_redirects_to_account(
    client_request,
):
    client_request.get(
        'main.register',
        _expected_status=302,
        _expected_redirect=url_for('main.show_accounts_or_dashboard'),
    )


@pytest.mark.parametrize('phone_number_to_register_with', [
    '+12023900460',
    '+1800-555-5555',
])
@pytest.mark.parametrize('password', [
    'the quick brown fox',
    '   the   quick   brown   fox   ',
])
def test_register_creates_new_user_and_redirects_to_continue_page(
    client_request,
    mock_send_verify_code,
    mock_register_user,
    mock_get_user_by_email_not_found,
    mock_email_is_not_already_in_use,
    mock_send_verify_email,
    mock_login,
    phone_number_to_register_with,
    password,
):
    client_request.logout()
    user_data = {'name': 'Some One Valid',
                 'email_address': 'notfound@example.gsa.gov',
                 'mobile_number': phone_number_to_register_with,
                 'password': password,
                 'auth_type': 'sms_auth'
                 }

    page = client_request.post(
        'main.register',
        _data=user_data,
        _follow_redirects=True,
    )

    assert page.select('main p')[0].text == 'An email has been sent to notfound@example.gsa.gov.'

    mock_send_verify_email.assert_called_with(ANY, user_data['email_address'])
    mock_register_user.assert_called_with(user_data['name'],
                                          user_data['email_address'],
                                          user_data['mobile_number'],
                                          user_data['password'],
                                          user_data['auth_type'])


def test_register_continue_handles_missing_session_sensibly(
    client_request,
):
    client_request.logout()
    # session is not set
    client_request.get(
        'main.registration_continue',
        _expected_redirect=url_for('main.show_accounts_or_dashboard'),
    )


def test_process_register_returns_200_when_mobile_number_is_invalid(
    client_request,
    mock_send_verify_code,
    mock_get_user_by_email_not_found,
    mock_login,
):
    client_request.logout()
    page = client_request.post(
        'main.register',
        _data={
            'name': 'Bad Mobile',
            'email_address': 'bad_mobile@example.gsa.gov',
            'mobile_number': 'not good',
            'password': 'validPassword!',
        },
        _expected_status=200,
    )

    assert 'The string supplied did not seem to be a phone number' in page.text


def test_should_return_200_when_email_is_not_gov_uk(
    client_request,
    mock_get_organisations,
):
    client_request.logout()
    page = client_request.post(
        'main.register',
        _data={
            'name': 'Firstname Lastname',
            'email_address': 'bad_mobile@example.not.right',
            'mobile_number': '2020900123',
            'password': 'validPassword!'
        },
        _expected_status=200,
    )

    assert 'Enter a public sector email address or find out who can use Notify' in normalize_spaces(
        page.select_one('.usa-error-message').text
    )
    assert page.select_one('.usa-error-message a')['href'] == url_for(
        'main.features'
    )


@pytest.mark.parametrize('email_address', (
    'notfound@example.gsa.gov',
    'example@lsquo.net',
))
def test_should_add_user_details_to_session(
    client_request,
    mocker,
    mock_send_verify_code,
    mock_register_user,
    mock_get_user_by_email_not_found,
    mock_get_organisations_with_unusual_domains,
    mock_email_is_not_already_in_use,
    mock_send_verify_email,
    mock_login,
    email_address,
):
    client_request.logout()
    client_request.post(
        'main.register',
        _data={
            'name': 'Test Codes',
            'email_address': email_address,
            'mobile_number': '+12023123123',
            'password': 'validPassword!'
        }
    )
    with client_request.session_transaction() as session:
        assert session['user_details']['email'] == email_address


def test_should_return_200_if_password_is_on_list_of_commonly_used_passwords(
    client_request,
    mock_get_user_by_email,
    mock_login,
):
    client_request.logout()
    page = client_request.post(
        'main.register',
        _data={
            'name': 'Bad Mobile',
            'email_address': 'bad_mobile@example.gsa.gov',
            'mobile_number': '+12021234123',
            'password': 'password',
        },
        _expected_status=200,
    )

    assert 'Choose a password that’s harder to guess' in page.text


def test_register_with_existing_email_sends_emails(
    client_request,
    api_user_active,
    mock_get_user_by_email,
    mock_send_already_registered_email,
):
    client_request.logout()
    user_data = {
        'name': 'Already Hasaccount',
        'email_address': api_user_active['email_address'],
        'mobile_number': '+12025900460',
        'password': 'validPassword!'
    }

    client_request.post(
        'main.register',
        _data=user_data,
        _expected_redirect=url_for('main.registration_continue'),
    )


@pytest.mark.parametrize('email_address, expected_value', [
    ("first.last@example.com", "First Last"),
    ("first.middle.last@example.com", "First Middle Last"),
    ("first.m.last@example.com", "First Last"),
    ("first.last-last@example.com", "First Last-Last"),
    ("first.o'last@example.com", "First O’Last"),
    ("first.last+testing@example.com", "First Last"),
    ("first.last+testing+testing@example.com", "First Last"),
    ("first.last6@example.com", "First Last"),
    ("first.last.212@example.com", "First Last"),
    ("first.2.last@example.com", "First Last"),
    ("first.2b.last@example.com", "First Last"),
    ("first.1.2.3.last@example.com", "First Last"),
    ("first.last.1.2.3@example.com", "First Last"),
    # Instances where we can’t make a good-enough guess:
    ("example123@example.com", None),
    ("f.last@example.com", None),
    ("f.m.last@example.com", None),
])
def test_shows_name_on_registration_page_from_invite(
    client_request,
    fake_uuid,
    email_address,
    expected_value,
    sample_invite,
    mock_get_invited_user_by_id,
):
    sample_invite['email_address'] = email_address
    with client_request.session_transaction() as session:
        session['invited_user_id'] = sample_invite

    page = client_request.get('main.register_from_invite')
    assert page.select_one('input[name=name]').get('value') == expected_value


def test_shows_hidden_email_address_on_registration_page_from_invite(
    client_request,
    fake_uuid,
    sample_invite,
    mock_get_invited_user_by_id,
):

    with client_request.session_transaction() as session:
        session['invited_user_id'] = sample_invite

    page = client_request.get('main.register_from_invite')
    assert normalize_spaces(page.select_one('main p').text) == (
        'Your account will be created with this email address: invited_user@test.gsa.gov'
    )
    hidden_input = page.select_one('form .usa-sr-only input')
    for attr, value in (
        ('type', 'email'),
        ('name', 'username'),
        ('id', 'username'),
        ('value', 'invited_user@test.gsa.gov'),
        ('disabled', "disabled"),
        ('tabindex', '-1'),
        ('aria-hidden', 'true'),
        ('autocomplete', 'username'),
    ):
        assert hidden_input[attr] == value


@pytest.mark.parametrize('extra_data', (
    {},
    # The username field is present in the page but the POST request
    # should ignore it
    {'username': 'invited@user.com'},
    {'username': 'anythingelse@example.com'},
))
def test_register_from_invite(
    client_request,
    fake_uuid,
    mock_email_is_not_already_in_use,
    mock_register_user,
    mock_send_verify_code,
    mock_accept_invite,
    mock_get_invited_user_by_id,
    sample_invite,
    extra_data,
):
    client_request.logout()
    with client_request.session_transaction() as session:
        session['invited_user_id'] = sample_invite['id']
    client_request.post(
        'main.register_from_invite',
        _data=dict(
            name='Registered in another Browser',
            email_address=sample_invite['email_address'],
            mobile_number='+12024900460',
            service=sample_invite['service'],
            password='somreallyhardthingtoguess',
            auth_type='sms_auth',
            **extra_data
        ),
        _expected_redirect=url_for('main.verify'),
    )
    mock_register_user.assert_called_once_with(
        'Registered in another Browser',
        sample_invite['email_address'],
        '+12024900460',
        'somreallyhardthingtoguess',
        'sms_auth',
    ),
    mock_get_invited_user_by_id.assert_called_once_with(sample_invite['id'])


def test_register_from_invite_when_user_registers_in_another_browser(
    client_request,
    api_user_active,
    mock_get_user_by_email,
    mock_accept_invite,
    mock_get_invited_user_by_id,
    sample_invite,
):
    client_request.logout()
    sample_invite['email_address'] = api_user_active['email_address']
    with client_request.session_transaction() as session:
        session['invited_user_id'] = sample_invite['id']
    client_request.post(
        'main.register_from_invite',
        _data={
            'name': 'Registered in another Browser',
            'email_address': api_user_active['email_address'],
            'mobile_number': api_user_active['mobile_number'],
            'service': sample_invite['service'],
            'password': 'somreallyhardthingtoguess',
            'auth_type': 'sms_auth'
        },
        _expected_redirect=url_for('main.verify'),
    )


@pytest.mark.parametrize('invite_email_address', ['gov-user@gsa.gov', 'non-gov-user@example.com'])
def test_register_from_email_auth_invite(
    client_request,
    sample_invite,
    mock_email_is_not_already_in_use,
    mock_register_user,
    mock_get_user,
    mock_send_verify_email,
    mock_send_verify_code,
    mock_accept_invite,
    mock_create_event,
    mock_add_user_to_service,
    mock_get_service,
    mock_get_invited_user_by_id,
    invite_email_address,
    service_one,
    fake_uuid,
    mocker,
):
    client_request.logout()
    mock_login_user = mocker.patch('app.models.user.login_user')
    sample_invite['auth_type'] = 'email_auth'
    sample_invite['email_address'] = invite_email_address
    with client_request.session_transaction() as session:
        session['invited_user_id'] = sample_invite['id']
        # Prove that the user isn’t already signed in
        assert 'user_id' not in session

    data = {
        'name': 'invited user',
        'email_address': sample_invite['email_address'],
        'mobile_number': '2028675301',
        'password': 'FSLKAJHFNvdzxgfyst',
        'service': sample_invite['service'],
        'auth_type': 'email_auth',
    }

    client_request.post(
        'main.register_from_invite',
        _data=data,
        _expected_redirect=url_for(
            'main.service_dashboard',
            service_id=sample_invite['service'],
        ),
    )

    # doesn't send any 2fa code
    assert not mock_send_verify_email.called
    assert not mock_send_verify_code.called
    # creates user with email_auth set
    mock_register_user.assert_called_once_with(
        data['name'],
        data['email_address'],
        data['mobile_number'],
        data['password'],
        data['auth_type']
    )
    # this is actually called twice, at the beginning of the function and then by the activate_user function
    mock_get_invited_user_by_id.assert_called_with(sample_invite['id'])
    mock_accept_invite.assert_called_once_with(sample_invite['service'], sample_invite['id'])

    # just logs them in
    mock_login_user.assert_called_once_with(User({
        'id': fake_uuid,  # This ID matches the return value of mock_register_user
        'platform_admin': False
    }))
    mock_add_user_to_service.assert_called_once_with(
        sample_invite['service'],
        fake_uuid,  # This ID matches the return value of mock_register_user
        {'manage_api_keys', 'manage_service', 'send_messages', 'view_activity'},
        [],
    )

    with client_request.session_transaction() as session:
        # The user is signed in
        assert 'user_id' in session
        # invited user details are still there so they can get added to the service
        assert session['invited_user_id'] == sample_invite['id']


def test_can_register_email_auth_without_phone_number(
    client_request,
    sample_invite,
    mock_email_is_not_already_in_use,
    mock_register_user,
    mock_get_user,
    mock_send_verify_email,
    mock_send_verify_code,
    mock_accept_invite,
    mock_create_event,
    mock_add_user_to_service,
    mock_get_service,
    mock_get_invited_user_by_id,
):
    client_request.logout()
    sample_invite['auth_type'] = 'email_auth'
    with client_request.session_transaction() as session:
        session['invited_user_id'] = sample_invite['id']

    data = {
        'name': 'invited user',
        'email_address': sample_invite['email_address'],
        'mobile_number': '',
        'password': 'FSLKAJHFNvdzxgfyst',
        'service': sample_invite['service'],
        'auth_type': 'email_auth'
    }

    client_request.post(
        'main.register_from_invite',
        _data=data,
        _expected_redirect=url_for(
            'main.service_dashboard',
            service_id=sample_invite['service'],
        ),
    )

    mock_register_user.assert_called_once_with(
        ANY,
        ANY,
        None,  # mobile_number
        ANY,
        ANY
    )


def test_cannot_register_with_sms_auth_and_missing_mobile_number(
    client_request,
    mock_send_verify_code,
    mock_get_user_by_email_not_found,
    mock_login,
):
    client_request.logout()
    page = client_request.post(
        'main.register',
        _data={
            'name': 'Missing Mobile',
            'email_address': 'missing_mobile@example.gsa.gov',
            'password': 'validPassword!',
        },
        _expected_status=200,
    )

    err = page.select_one('.usa-error-message')
    assert err.text.strip() == 'Error: Cannot be empty'
    assert err.attrs['data-error-label'] == 'mobile_number'


def test_register_from_invite_form_doesnt_show_mobile_number_field_if_email_auth(
    client_request,
    sample_invite,
    mock_get_invited_user_by_id,
):
    client_request.logout()
    sample_invite['auth_type'] = 'email_auth'
    with client_request.session_transaction() as session:
        session['invited_user_id'] = sample_invite['id']

    page = client_request.get('main.register_from_invite')

    assert page.find('input', attrs={'name': 'auth_type'}).attrs['value'] == 'email_auth'
    assert page.find('input', attrs={'name': 'mobile_number'}) is None