from appsettings.settings import app_settings
from computes.models import Compute
from django.conf import settings
from django.contrib.auth import get_user_model
from django.contrib.auth.models import Permission
from django.shortcuts import reverse
from django.test import Client, TestCase
from instances.models import Instance
from instances.utils import refr
from libvirt import VIR_DOMAIN_UNDEFINE_NVRAM
from vrtManager.create import wvmCreate

from accounts.forms import UserInstanceForm, UserSSHKeyForm
from accounts.models import UserInstance, UserSSHKey
from accounts.utils import validate_ssh_key


class AccountsTestCase(TestCase):
    @classmethod
    def setUpClass(cls):
        super().setUpClass()

        # Add users for testing purposes
        User = get_user_model()
        cls.admin_user = User.objects.get(pk=1)
        cls.test_user = User.objects.create_user(username='test', password='test')

        # Add localhost compute
        cls.compute = Compute(
            name='test-compute',
            hostname='localhost',
            login='',
            password='',
            details='local',
            type=4,
        )
        cls.compute.save()

        cls.connection = wvmCreate(
            cls.compute.hostname,
            cls.compute.login,
            cls.compute.password,
            cls.compute.type,
        )

        # Add disks for testing
        cls.connection.create_volume(
            'default',
            'test-volume',
            1,
            'qcow2',
            False,
            0,
            0,
        )

        # XML for testing vm
        with open('conf/test-vm.xml', 'r') as f:
            cls.xml = f.read()

        # Create testing vm from XML
        cls.connection._defineXML(cls.xml)
        refr(cls.compute)
        cls.instance = Instance.objects.get(pk=1)

    @classmethod
    def tearDownClass(cls):
        # Destroy testing vm
        cls.instance.proxy.delete_all_disks()
        cls.instance.proxy.delete(VIR_DOMAIN_UNDEFINE_NVRAM)
        super().tearDownClass()

    def setUp(self):
        self.client.login(username='admin', password='admin')
        permission = Permission.objects.get(codename='change_password')
        self.test_user.user_permissions.add(permission)
        self.rsa_key = 'ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAAAgQC6OOdbfv27QVnSC6sKxGaHb6YFc+3gxCkyVR3cTSXE/n5BEGf8aOgBpepULWa1RZfxYHY14PlKULDygdXSdrrR2kNSwoKz/Oo4d+3EE92L7ocl1+djZbptzgWgtw1OseLwbFik+iKlIdqPsH+IUQvX7yV545ZQtAP8Qj1R+uCqkw== test@test'
        self.ecdsa_key = 'ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBJc5xpT3R0iFJYNZbmWgAiDlHquX/BcV1kVTsnBfiMsZgU3lGaqz2eb7IBcir/dxGnsVENTTmPQ6sNcxLxT9kkQ= realgecko@archlinux'

    def test_profile(self):
        response = self.client.get(reverse('accounts:profile'))
        self.assertEqual(response.status_code, 200)

        response = self.client.get(reverse('accounts:account', args=[self.test_user.id]))
        self.assertEqual(response.status_code, 200)

    def test_account_with_otp(self):
        settings.OTP_ENABLED = True
        response = self.client.get(reverse('accounts:account', args=[self.test_user.id]))
        self.assertEqual(response.status_code, 200)

    def test_login_logout(self):
        client = Client()

        response = client.post(reverse("accounts:login"), {"username": "test", "password": "test"})
        self.assertRedirects(response, reverse('accounts:profile'))

        response = client.get(reverse('accounts:logout'))
        self.assertRedirects(response, reverse('accounts:login'))

    def test_change_password(self):
        self.client.force_login(self.test_user)

        response = self.client.get(reverse('accounts:change_password'))
        self.assertEqual(response.status_code, 200)

        response = self.client.post(
            reverse('accounts:change_password'),
            {
                'old_password': 'wrongpass',
                'new_password1': 'newpw',
                'new_password2': 'newpw',
            },
        )
        self.assertEqual(response.status_code, 200)

        response = self.client.post(
            reverse('accounts:change_password'),
            {
                'old_password': 'test',
                'new_password1': 'newpw',
                'new_password2': 'newpw',
            },
        )
        self.assertRedirects(response, reverse('accounts:profile'))

        self.client.logout()

        logged_in = self.client.login(username='test', password='newpw')
        self.assertTrue(logged_in)

    def test_user_instance_create_update_delete(self):
        # create
        response = self.client.get(reverse('accounts:user_instance_create', args=[self.test_user.id]))
        self.assertEqual(response.status_code, 200)

        response = self.client.post(
            reverse('accounts:user_instance_create', args=[self.test_user.id]),
            {
                'user': self.test_user.id,
                'instance': self.instance.id,
                'is_change': False,
                'is_delete': False,
                'is_vnc': False,
            },
        )
        self.assertRedirects(response, reverse('accounts:account', args=[self.test_user.id]))

        user_instance: UserInstance = UserInstance.objects.get(pk=1)
        self.assertEqual(user_instance.user, self.test_user)
        self.assertEqual(user_instance.instance, self.instance)
        self.assertEqual(user_instance.is_change, False)
        self.assertEqual(user_instance.is_delete, False)
        self.assertEqual(user_instance.is_vnc, False)

        # update
        response = self.client.get(reverse('accounts:user_instance_update', args=[user_instance.id]))
        self.assertEqual(response.status_code, 200)

        response = self.client.post(
            reverse('accounts:user_instance_update', args=[user_instance.id]),
            {
                'user': self.test_user.id,
                'instance': self.instance.id,
                'is_change': True,
                'is_delete': True,
                'is_vnc': True,
            },
        )
        self.assertRedirects(response, reverse('accounts:account', args=[self.test_user.id]))

        user_instance: UserInstance = UserInstance.objects.get(pk=1)
        self.assertEqual(user_instance.user, self.test_user)
        self.assertEqual(user_instance.instance, self.instance)
        self.assertEqual(user_instance.is_change, True)
        self.assertEqual(user_instance.is_delete, True)
        self.assertEqual(user_instance.is_vnc, True)

        # delete
        response = self.client.get(reverse('accounts:user_instance_delete', args=[user_instance.id]))
        self.assertEqual(response.status_code, 200)

        response = self.client.post(reverse('accounts:user_instance_delete', args=[user_instance.id]))
        self.assertRedirects(response, reverse('accounts:account', args=[self.test_user.id]))

        # test 'next' redirect during deletion
        user_instance = UserInstance.objects.create(user=self.test_user, instance=self.instance)
        response = self.client.post(
            reverse('accounts:user_instance_delete', args=[user_instance.id]) + '?next=' + reverse('index'))
        self.assertRedirects(response, reverse('index'))

    def test_update_user_profile(self):
        self.client.force_login(self.test_user)

        user = get_user_model().objects.get(username='test')
        self.assertEqual(user.first_name, '')
        self.assertEqual(user.last_name, '')
        self.assertEqual(user.email, '')

        response = self.client.post(reverse('accounts:profile'), {
            'first_name': 'first name',
            'last_name': 'last name',
            'email': 'email@mail.mail',
        })
        self.assertRedirects(response, reverse('accounts:profile'))

        user = get_user_model().objects.get(username='test')
        self.assertEqual(user.first_name, 'first name')
        self.assertEqual(user.last_name, 'last name')
        self.assertEqual(user.email, 'email@mail.mail')

    def test_create_delete_ssh_key(self):
        response = self.client.get(reverse('accounts:ssh_key_create'))
        self.assertEqual(response.status_code, 200)

        response = self.client.post(reverse('accounts:ssh_key_create'), {
            'keyname': 'keyname',
            'keypublic': self.rsa_key,
        })
        self.assertRedirects(response, reverse('accounts:profile'))

        key = UserSSHKey.objects.get(pk=1)
        self.assertEqual(key.keyname, 'keyname')
        self.assertEqual(key.keypublic, self.rsa_key)

        response = self.client.get(reverse('accounts:ssh_key_delete', args=[1]))
        self.assertEqual(response.status_code, 200)

        response = self.client.post(reverse('accounts:ssh_key_delete', args=[1]))
        self.assertRedirects(response, reverse('accounts:profile'))

    def test_validate_ssh_key(self):
        self.assertFalse(validate_ssh_key(''))
        self.assertFalse(validate_ssh_key('ssh-rsa ABBA test@test'))
        self.assertFalse(validate_ssh_key('ssh-rsa AAAABwdzZGY= test@test'))
        self.assertFalse(validate_ssh_key('ssh-rsa AAA test@test'))
        # validate ecdsa key
        self.assertTrue(validate_ssh_key(self.ecdsa_key))

    def test_forms(self):
        # raise available validation errors for maximum coverage
        form = UserSSHKeyForm({'keyname': 'keyname', 'keypublic': self.rsa_key}, user=self.test_user)
        form.save()

        form = UserSSHKeyForm({'keyname': 'keyname', 'keypublic': self.rsa_key}, user=self.test_user)
        self.assertFalse(form.is_valid())

        form = UserSSHKeyForm({'keyname': 'keyname', 'keypublic': 'invalid key'}, user=self.test_user)
        self.assertFalse(form.is_valid())

        app_settings.ALLOW_INSTANCE_MULTIPLE_OWNER = 'False'
        form = UserInstanceForm({
            'user': self.admin_user.id,
            'instance': self.instance.id,
            'is_change': False,
            'is_delete': False,
            'is_vnc': False,
        })
        form.save()
        form = UserInstanceForm({
            'user': self.test_user.id,
            'instance': self.instance.id,
            'is_change': False,
            'is_delete': False,
            'is_vnc': False,
        })
        self.assertFalse(form.is_valid())