from unittest import mock

import pytest
from django.apps import AppConfig
from django.core.exceptions import ImproperlyConfigured
from django.urls import include, path

from oscar.apps.dashboard.nav import _dashboard_url_names_to_config
from oscar.core.application import OscarDashboardConfig


class PathAppConfig(AppConfig):
    path = 'fake'


class DashConfig(OscarDashboardConfig):
    path = 'fake'

    def get_urls(self):
        return [
            path('a', lambda x:x, name='lol'),
            path('b', lambda x:x),
            path('c', include([
                path('d', lambda x:x, name='foo'),
            ]))
        ]


def test_only_returns_dashboard_urls():
    with mock.patch('oscar.apps.dashboard.nav.apps.get_app_configs') as mock_configs:
        mock_configs.return_value = [PathAppConfig('name', 'module')]
        output = _dashboard_url_names_to_config.__wrapped__()

    assert not output


def test_only_returns_named_urls_and_skips_includes():
    config = DashConfig('name', 'module')
    with mock.patch('oscar.apps.dashboard.nav.apps.get_app_configs') as mock_configs:
        mock_configs.return_value = [config]
        output = _dashboard_url_names_to_config.__wrapped__()

    assert output == {"lol": config}


def test_raises_if_same_name_in_different_configs():
    config_a = DashConfig('a_name', 'a_module')
    config_b = DashConfig('b_name', 'b_module')
    with mock.patch('oscar.apps.dashboard.nav.apps.get_app_configs') as mock_configs:
        mock_configs.return_value = [config_a, config_b]
        with pytest.raises(ImproperlyConfigured):
            _dashboard_url_names_to_config.__wrapped__()