import pytest

from django.test import override_settings

from tests.factories.page import ContentPageFactory
from wagtail_personalisation.utils import (
    can_delete_pages, get_client_ip, impersonate_other_page)


@pytest.fixture
def rootpage():
    return ContentPageFactory(parent=None, path='/', depth=0, title='root')


@pytest.fixture
def page(rootpage):
    return ContentPageFactory(parent=rootpage, path='/hi', title='Hi')


@pytest.fixture
def otherpage(rootpage):
    return ContentPageFactory(parent=rootpage, path='/bye', title='Bye')


@pytest.mark.django_db
def test_impersonate_other_page(page, otherpage):
    impersonate_other_page(page, otherpage)
    assert page.title == otherpage.title == 'Bye'
    assert page.path == otherpage.path


@pytest.mark.django_db
def test_can_delete_pages_with_superuser(rf, user, segmented_page):
    user.is_superuser = True
    assert can_delete_pages([segmented_page], user)


@pytest.mark.django_db
def test_cannot_delete_pages_with_standard_user(user, segmented_page):
    assert not can_delete_pages([segmented_page], user)


def test_get_client_ip_with_remote_addr(rf):
    request = rf.get('/', REMOTE_ADDR='173.231.235.87')
    assert get_client_ip(request) == '173.231.235.87'


def test_get_client_ip_with_x_forwarded_for(rf):
    request = rf.get('/', HTTP_X_FORWARDED_FOR='173.231.235.87',
                     REMOTE_ADDR='10.0.23.24')
    assert get_client_ip(request) == '173.231.235.87'


@override_settings(
    WAGTAIL_PERSONALISATION_IP_FUNCTION='some.non.existent.path'
)
def test_get_client_ip_custom_get_client_ip_function_does_not_exist(rf):
    with pytest.raises(ImportError):
        get_client_ip(rf.get('/'))


@override_settings(
    WAGTAIL_PERSONALISATION_IP_FUNCTION='tests.utils.get_custom_ip'
)
def test_get_client_ip_custom_get_client_ip_used(rf):
    assert get_client_ip(rf.get('/')) == '123.123.123.123'