"""outpost tests"""
from os import environ
from unittest.case import skipUnless
from unittest.mock import patch

from django.test import TestCase
from guardian.models import UserObjectPermission

from passbook.crypto.models import CertificateKeyPair
from passbook.flows.models import Flow
from passbook.outposts.controllers.k8s.base import NeedsUpdate
from passbook.outposts.controllers.k8s.deployment import DeploymentReconciler
from passbook.outposts.controllers.kubernetes import KubernetesController
from passbook.outposts.models import KubernetesServiceConnection, Outpost, OutpostType
from passbook.providers.proxy.models import ProxyProvider


class OutpostTests(TestCase):
    """Outpost Tests"""

    def test_service_account_permissions(self):
        """Test that the service account has correct permissions"""
        provider: ProxyProvider = ProxyProvider.objects.create(
            name="test",
            internal_host="http://localhost",
            external_host="http://localhost",
            authorization_flow=Flow.objects.first(),
        )
        outpost: Outpost = Outpost.objects.create(
            name="test",
            type=OutpostType.PROXY,
        )

        # Before we add a provider, the user should only have access to the outpost
        permissions = UserObjectPermission.objects.filter(user=outpost.user)
        self.assertEqual(len(permissions), 1)
        self.assertEqual(permissions[0].object_pk, str(outpost.pk))

        # We add a provider, user should only have access to outpost and provider
        outpost.providers.add(provider)
        outpost.save()
        permissions = UserObjectPermission.objects.filter(user=outpost.user).order_by(
            "content_type__model"
        )
        self.assertEqual(len(permissions), 2)
        self.assertEqual(permissions[0].object_pk, str(outpost.pk))
        self.assertEqual(permissions[1].object_pk, str(provider.pk))

        # Provider requires a certificate-key-pair, user should have permissions for it
        keypair = CertificateKeyPair.objects.first()
        provider.certificate = keypair
        provider.save()
        permissions = UserObjectPermission.objects.filter(user=outpost.user).order_by(
            "content_type__model"
        )
        self.assertEqual(len(permissions), 3)
        self.assertEqual(permissions[0].object_pk, str(keypair.pk))
        self.assertEqual(permissions[1].object_pk, str(outpost.pk))
        self.assertEqual(permissions[2].object_pk, str(provider.pk))

        # Remove provider from outpost, user should only have access to outpost
        outpost.providers.remove(provider)
        outpost.save()
        permissions = UserObjectPermission.objects.filter(user=outpost.user)
        self.assertEqual(len(permissions), 1)
        self.assertEqual(permissions[0].object_pk, str(outpost.pk))


@skipUnless("PB_TEST_K8S" in environ, "Kubernetes test cluster required")
class OutpostKubernetesTests(TestCase):
    """Test Kubernetes Controllers"""

    def setUp(self):
        super().setUp()
        self.provider: ProxyProvider = ProxyProvider.objects.create(
            name="test",
            internal_host="http://localhost",
            external_host="http://localhost",
            authorization_flow=Flow.objects.first(),
        )
        self.service_connection = KubernetesServiceConnection.objects.first()
        self.outpost: Outpost = Outpost.objects.create(
            name="test",
            type=OutpostType.PROXY,
            service_connection=self.service_connection,
        )
        self.outpost.providers.add(self.provider)
        self.outpost.save()

    def test_deployment_reconciler(self):
        """test that deployment requires update"""
        controller = KubernetesController(self.outpost, self.service_connection)
        deployment_reconciler = DeploymentReconciler(controller)

        self.assertIsNotNone(deployment_reconciler.retrieve())

        config = self.outpost.config
        config.kubernetes_replicas = 3
        self.outpost.config = config

        with self.assertRaises(NeedsUpdate):
            deployment_reconciler.reconcile(
                deployment_reconciler.retrieve(),
                deployment_reconciler.get_reference_object(),
            )

        with patch.object(deployment_reconciler, "image_base", "test"):
            with self.assertRaises(NeedsUpdate):
                deployment_reconciler.reconcile(
                    deployment_reconciler.retrieve(),
                    deployment_reconciler.get_reference_object(),
                )

        deployment_reconciler.delete(deployment_reconciler.get_reference_object())