import pytest

from django import forms
from django.urls import reverse

from funkwhale_api.federation import webfinger


def test_webfinger_clean_resource():
    t, r = webfinger.clean_resource('acct:service@test.federation')
    assert t == 'acct'
    assert r == 'service@test.federation'


@pytest.mark.parametrize('resource,message', [
    ('', 'Invalid resource string'),
    ('service@test.com', 'Missing webfinger resource type'),
    ('noop:service@test.com', 'Invalid webfinger resource type'),
])
def test_webfinger_clean_resource_errors(resource, message):
    with pytest.raises(forms.ValidationError) as excinfo:
        webfinger.clean_resource(resource)

        assert message == str(excinfo)


def test_webfinger_clean_acct(settings):
    settings.FEDERATION_HOSTNAME = 'test.federation'
    username, hostname = webfinger.clean_acct('service@test.federation')
    assert username == 'service'
    assert hostname == 'test.federation'


@pytest.mark.parametrize('resource,message', [
    ('service', 'Invalid format'),
    ('service@test.com', 'Invalid hostname'),
    ('noop@test.federation', 'Invalid account'),
])
def test_webfinger_clean_acct_errors(resource, message, settings):
    settings.FEDERATION_HOSTNAME = 'test.federation'

    with pytest.raises(forms.ValidationError) as excinfo:
        webfinger.clean_resource(resource)

        assert message == str(excinfo)


def test_service_serializer(settings):
    settings.FEDERATION_HOSTNAME = 'test.federation'
    settings.FUNKWHALE_URL = 'https://test.federation'

    expected = {
        'subject': 'acct:service@test.federation',
        'links': [
            {
                'rel': 'self',
                'href': 'https://test.federation/federation/instance/actor',
                'type': 'application/activity+json',
            }
        ],
        'aliases': [
            'https://test.federation/federation/instance/actor',
        ]
    }

    assert expected == webfinger.serialize_system_acct()