"""LDAP and Outpost e2e tests"""
from sys import platform
from time import sleep
from unittest.case import skipUnless

from docker.client import DockerClient, from_env
from docker.models.containers import Container
from guardian.shortcuts import get_anonymous_user
from ldap3 import (
    ALL,
    ALL_ATTRIBUTES,
    ALL_OPERATIONAL_ATTRIBUTES,
    SUBTREE,
    Connection,
    Server,
)
from ldap3.core.exceptions import LDAPInvalidCredentialsResult

from authentik.core.models import Application, Group, User
from authentik.events.models import Event, EventAction
from authentik.flows.models import Flow
from authentik.outposts.models import Outpost, OutpostType
from authentik.providers.ldap.models import LDAPProvider
from tests.e2e.utils import (
    USER,
    SeleniumTestCase,
    apply_migration,
    object_manager,
    retry,
)


@skipUnless(platform.startswith("linux"), "requires local docker")
class TestProviderLDAP(SeleniumTestCase):
    """LDAP and Outpost e2e tests"""

    ldap_container: Container

    def tearDown(self) -> None:
        super().tearDown()
        self.output_container_logs(self.ldap_container)
        self.ldap_container.kill()

    def start_ldap(self, outpost: Outpost) -> Container:
        """Start ldap container based on outpost created"""
        client: DockerClient = from_env()
        container = client.containers.run(
            image="beryju.org/authentik/outpost-ldap:gh-master",
            detach=True,
            network_mode="host",
            auto_remove=True,
            environment={
                "AUTHENTIK_HOST": self.live_server_url,
                "AUTHENTIK_TOKEN": outpost.token.key,
            },
        )
        return container

    def _prepare(self) -> User:
        """prepare user, provider, app and container"""
        # set additionalHeaders to test later
        user = USER()
        user.attributes["extraAttribute"] = "bar"
        user.save()

        ldap: LDAPProvider = LDAPProvider.objects.create(
            name="ldap_provider",
            authorization_flow=Flow.objects.get(slug="default-authentication-flow"),
            search_group=Group.objects.first(),
        )
        # we need to create an application to actually access the ldap
        Application.objects.create(name="ldap", slug="ldap", provider=ldap)
        outpost: Outpost = Outpost.objects.create(
            name="ldap_outpost",
            type=OutpostType.LDAP,
        )
        outpost.providers.add(ldap)
        outpost.save()
        user = outpost.user

        self.ldap_container = self.start_ldap(outpost)

        # Wait until outpost healthcheck succeeds
        healthcheck_retries = 0
        while healthcheck_retries < 50:
            if len(outpost.state) > 0:
                state = outpost.state[0]
                if state.last_seen:
                    break
            healthcheck_retries += 1
            sleep(0.5)
        return user

    @retry()
    @apply_migration("authentik_core", "0003_default_user")
    @apply_migration("authentik_flows", "0008_default_flows")
    @object_manager
    def test_ldap_bind_success(self):
        """Test simple bind"""
        self._prepare()
        server = Server("ldap://localhost:3389", get_info=ALL)
        _connection = Connection(
            server,
            raise_exceptions=True,
            user=f"cn={USER().username},ou=users,DC=ldap,DC=goauthentik,DC=io",
            password=USER().username,
        )
        _connection.bind()
        self.assertTrue(
            Event.objects.filter(
                action=EventAction.LOGIN,
                user={
                    "pk": USER().pk,
                    "email": USER().email,
                    "username": USER().username,
                },
            )
        )

    @retry()
    @apply_migration("authentik_core", "0003_default_user")
    @apply_migration("authentik_flows", "0008_default_flows")
    @object_manager
    def test_ldap_bind_fail(self):
        """Test simple bind (failed)"""
        self._prepare()
        server = Server("ldap://localhost:3389", get_info=ALL)
        _connection = Connection(
            server,
            raise_exceptions=True,
            user=f"cn={USER().username},ou=users,DC=ldap,DC=goauthentik,DC=io",
            password=USER().username + "fqwerwqer",
        )
        with self.assertRaises(LDAPInvalidCredentialsResult):
            _connection.bind()
        anon = get_anonymous_user()
        self.assertTrue(
            Event.objects.filter(
                action=EventAction.LOGIN_FAILED,
                user={"pk": anon.pk, "email": anon.email, "username": anon.username},
            )
        )

    @retry()
    @apply_migration("authentik_core", "0003_default_user")
    @apply_migration("authentik_core", "0009_group_is_superuser")
    @apply_migration("authentik_flows", "0008_default_flows")
    @object_manager
    def test_ldap_bind_search(self):
        """Test simple bind + search"""
        outpost_user = self._prepare()
        server = Server("ldap://localhost:3389", get_info=ALL)
        _connection = Connection(
            server,
            raise_exceptions=True,
            user=f"cn={USER().username},ou=users,dc=ldap,dc=goauthentik,dc=io",
            password=USER().username,
        )
        _connection.bind()
        self.assertTrue(
            Event.objects.filter(
                action=EventAction.LOGIN,
                user={
                    "pk": USER().pk,
                    "email": USER().email,
                    "username": USER().username,
                },
            )
        )
        _connection.search(
            "ou=users,dc=ldap,dc=goauthentik,dc=io",
            "(objectClass=user)",
            search_scope=SUBTREE,
            attributes=[ALL_ATTRIBUTES, ALL_OPERATIONAL_ATTRIBUTES],
        )
        response = _connection.response
        # Remove raw_attributes to make checking easier
        for obj in response:
            del obj["raw_attributes"]
            del obj["raw_dn"]
        self.assertCountEqual(
            response,
            [
                {
                    "dn": f"cn={outpost_user.username},ou=users,dc=ldap,dc=goauthentik,dc=io",
                    "attributes": {
                        "cn": [outpost_user.username],
                        "uid": [outpost_user.uid],
                        "name": [""],
                        "displayName": [""],
                        "mail": [""],
                        "objectClass": [
                            "user",
                            "organizationalPerson",
                            "goauthentik.io/ldap/user",
                        ],
                        "uidNumber": [str(2000 + outpost_user.pk)],
                        "gidNumber": [str(2000 + outpost_user.pk)],
                        "memberOf": [],
                        "accountStatus": ["true"],
                        "superuser": ["false"],
                        "goauthentik.io/ldap/active": ["true"],
                        "goauthentik.io/ldap/superuser": ["false"],
                        "goauthentik.io/user/override-ips": ["true"],
                        "goauthentik.io/user/service-account": ["true"],
                    },
                    "type": "searchResEntry",
                },
                {
                    "dn": f"cn={USER().username},ou=users,dc=ldap,dc=goauthentik,dc=io",
                    "attributes": {
                        "cn": [USER().username],
                        "uid": [USER().uid],
                        "name": [USER().name],
                        "displayName": [USER().name],
                        "mail": [USER().email],
                        "objectClass": [
                            "user",
                            "organizationalPerson",
                            "goauthentik.io/ldap/user",
                        ],
                        "uidNumber": [str(2000 + USER().pk)],
                        "gidNumber": [str(2000 + USER().pk)],
                        "memberOf": [
                            "cn=authentik Admins,ou=groups,dc=ldap,dc=goauthentik,dc=io"
                        ],
                        "accountStatus": ["true"],
                        "superuser": ["true"],
                        "goauthentik.io/ldap/active": ["true"],
                        "goauthentik.io/ldap/superuser": ["true"],
                        "extraAttribute": ["bar"],
                    },
                    "type": "searchResEntry",
                },
            ],
        )