from django.conf import settings
from django.test import TestCase
from django.urls import reverse
from django.urls import reverse, resolve
from django.contrib.auth.tokens import default_token_generator
from django.utils.http import urlsafe_base64_encode
from django.utils.encoding import force_bytes
from unittest import skipIf

from model_mommy import mommy
from stored_messages.models import Inbox
from factories import CustomUserFactory

from membership.models import CustomUser, StripeCustomer
from .models import HostingOrder
from .views import (
    DjangoHostingView, RailsHostingView, NodeJSHostingView, LoginView,
    SignupView, PaymentVMView, OrdersHostingDetailView, OrdersHostingListView,
    VirtualMachinesPlanListView, PasswordResetView, PasswordResetConfirmView,
    HostingPricingView, NotificationsView, MarkAsReadNotificationView
)
from utils.tests import BaseTestCase, create_customer_client
from unittest.mock import patch, MagicMock


@skipIf(
    (settings.OPENNEBULA_DOMAIN is None or
     settings.OPENNEBULA_DOMAIN == "test_domain"),
    """OpenNebula details unavailable, so skipping
     ProcessVMSelectionTestMixin"""
)
class ProcessVMSelectionTestMixin(object):

    def url_resolve_to_view_correctly(self):
        found = resolve(self.url)
        self.assertEqual(found.func.__name__, self.view.__name__)

    def test_get(self):
        response = self.client.get(self.url)
        self.assertEqual(response.status_code, 200)
        # self.assertEqual(self.view.get_context_data(), self.expected_context)
        self.assertEqual(response.context['hosting'], self.expected_context['hosting'])
        self.assertTemplateUsed(response, self.expected_template)

    # def test_anonymous_post(self):
    #     params = {'vm_template_id': 1, 'configuration': 1}
    #     response = self.client.post(self.url, params)
    #     self.assertRedirects(response, expected_url=reverse('hosting:login'),
    #                          status_code=302, target_status_code=200)


class DjangoHostingViewTest(TestCase, ProcessVMSelectionTestMixin):
    def setUp(self):
        self.url = reverse("django.hosting")
        self.view = DjangoHostingView()
        self.expected_template = "hosting/django.html"
        self.expected_context = {"hosting": "django"}


class RailsHostingViewTest(TestCase, ProcessVMSelectionTestMixin):
    def setUp(self):
        self.url = reverse("rails.hosting")
        self.view = RailsHostingView()
        self.expected_template = "hosting/rails.html"
        self.expected_context = {"hosting": "rails"}


class HostingPricingViewTest(TestCase):
    def setUp(self):
        self.url = reverse("hosting:pricing")
        self.view = HostingPricingView()
        self.expected_template = "hosting/hosting_pricing.html"

    def test_get(self):
        with patch("hosting.views.OpenNebulaManager") as manager:
            manager.return_value.get_templates.return_value = []
            response = self.client.get(self.url)

        self.assertEqual(response.status_code, 200)
        self.assertTemplateUsed(response, self.expected_template)


@skipIf(
    (settings.OPENNEBULA_DOMAIN is None or
     settings.OPENNEBULA_DOMAIN == "test_domain"),
    """OpenNebula details unavailable, so skipping
     HostingPricingViewTest.test_get"""
)
class HostingPricingViewTest(TestCase):

    def setUp(self):
        self.url = reverse('hosting:pricing')
        self.view = HostingPricingView()
        self.expected_template = 'hosting/hosting_pricing.html'

        # configuration_options = dict(VirtualMachinePlan.VM_CONFIGURATION)
        self.expected_context = {
            # 'configuration_options': configuration_options,
            'email': "info@django-hosting.ch",
            # 'vm_types': VirtualMachineType.get_serialized_vm_types(),
        }

    def url_resolve_to_view_correctly(self):
        found = resolve(self.url)
        self.assertEqual(found.func.__name__, self.view.__name__)

    def test_get(self):
        response = self.client.get(self.url)
        self.assertEqual(response.status_code, 200)
        # self.assertEqual(self.view.get_context_data(), self.expected_context)
        self.assertTemplateUsed(response, self.expected_template)

    # def test_anonymous_post(self):
    #     response = self.client.post(self.url)
    #     self.assertRedirects(response, expected_url=reverse('hosting:login'),
    #                          status_code=302, target_status_code=200)


class NotificationsViewTest(TestCase):
    def setUp(self):
        self.customer, self.customer_client = create_customer_client()
        self.url = reverse("hosting:notifications")
        self.view = NotificationsView
        self.expected_template = "hosting/notifications.html"

        self.inboxes = mommy.make(
            Inbox, user=self.customer, _quantity=2
        )
        self.messages = [inbox.message for inbox in self.inboxes]

    def test_get(self):
        response = self.client.get(self.url)
        expected_url = (
            f"{reverse('hosting:login')}?next={self.url}"
        )
        self.assertRedirects(response, expected_url)

        response = self.customer_client.get(self.url)
        self.assertEqual(response.status_code, 200)
        self.assertEqual(
            response.context["all_notifications"],
            self.messages,
        )
        self.assertTemplateUsed(response, self.expected_template)


class MarkAsReadNotificationViewTest(TestCase):
    def setUp(self):
        self.customer, self.customer_client = create_customer_client()
        self.view = MarkAsReadNotificationView
        self.expected_template = "hosting/notifications.html"

        self.inbox = mommy.make(Inbox, user=self.customer)
        self.message = self.inbox.message
        self.url = reverse(
            "hosting:read_notification",
            kwargs={"pk": self.message.id},
        )

    def test_post(self):
        response = self.client.post(self.url)
        expected_url = (
            f"{reverse('hosting:login')}?next={self.url}"
        )
        self.assertRedirects(response, expected_url)

        response = self.customer_client.post(self.url, follow=True)
        self.assertEqual(response.status_code, 200)
        self.assertFalse(
            Inbox.objects.filter(user=self.customer).exists()
        )
        self.assertTemplateUsed(response, self.expected_template)


# class GenerateVMSSHKeysViewTest(BaseTestCase):
#
#     def setUp(self):
#         super(GenerateVMSSHKeysViewTest, self).setUp()
#
#         # self.view = GenerateVMSSHKeysView
#         # self.vm = mommy.make(VirtualMachinePlan)
#         self.expected_template = 'hosting/virtual_machine_key.html'
#         self.url = reverse('hosting:virtual_machine_key', kwargs={'pk': self.vm.id})
#
#     def test_url_resolve_to_view_correctly(self):
#         found = resolve(self.url)
#         self.assertEqual(found.func.__name__, self.view.__name__)
#
#     def test_get(self):
#
#         # Anonymous user should get redirect to login
#         response = self.client.get(self.url)
#         expected_url = "%s?next=%s" % (reverse('hosting:login'),
#                                        reverse('hosting:virtual_machine_key',
#                                                kwargs={'pk': self.vm.id}))
#         self.assertRedirects(response, expected_url=expected_url,
#                              status_code=302, target_status_code=200)
#
#         # Logged user should get the page
#         response = self.customer_client.get(self.url, follow=True)
#         self.assertEqual(response.status_code, 200)
#         #updated_vm = VirtualMachinePlan.objects.get(id=self.vm.id)
#         #self.assertEqual(response.context['public_key'].decode("utf-8"), updated_vm.public_key)
#         self.assertTrue(response.context['private_key'] is not None)
#         self.assertEqual(len(response.context['public_key']), 380)
#         self.assertTrue(len(response.context['private_key']) is 1678 or 1674)
#         self.assertTemplateUsed(response, self.expected_template)


# class VirtualMachineViewTest(BaseTestCase):
#
#     def setUp(self):
#         super(VirtualMachineViewTest, self).setUp()
#
#         self.stripe_customer = mommy.make(StripeCustomer, user=self.customer)
#         #self.vm = mommy.make(VirtualMachinePlan)
#         self.vm.assign_permissions(self.customer)
#         self.order = mommy.make(HostingOrder, customer=self.stripe_customer, vm_plan=self.vm)
#         self.url = reverse('hosting:virtual_machines', kwargs={'pk': self.vm.id})
#         self.view = VirtualMachineView()
#         self.expected_template = 'hosting/virtual_machine_detail.html'
#
#     def url_resolve_to_view_correctly(self):
#         found = resolve(self.url)
#         self.assertEqual(found.func.__name__, self.view.__name__)
#
#     def test_get(self):
#
#         # Anonymous user should get redirect to login
#         response = self.client.get(self.url)
#         expected_url = "%s?next=%s" % (reverse('hosting:login'),
#                                        reverse('hosting:virtual_machines',
#                                        kwargs={'pk': self.vm.id}))
#         self.assertRedirects(response, expected_url=expected_url,
#                              status_code=302, target_status_code=200)
#
#         # Customer should be able to get data
#         response = self.customer_client.get(self.url, follow=True)
#         self.assertEqual(response.status_code, 200)
#         self.assertEqual(response.context['virtual_machine'], self.vm)
#         self.assertTemplateUsed(response, self.expected_template)


class VirtualMachinesPlanListViewTest(TestCase):
    def setUp(self):
        self.customer, self.customer_client = create_customer_client()
        self.stripe_customer = mommy.make(
            StripeCustomer, user=self.customer
        )
        mommy.make(
            HostingOrder,
            customer=self.stripe_customer,
            approved=True,
            _quantity=20,
        )
        self.url = reverse("hosting:virtual_machines")
        self.view = VirtualMachinesPlanListView()
        self.expected_template = "hosting/virtual_machines.html"

    def test_get(self):
        response = self.client.get(self.url)
        expected_url = (
            f"{reverse('hosting:login')}?next={self.url}"
        )
        self.assertRedirects(response, expected_url)

        # The view and its serializer instantiate their own managers.
        with (
            patch("hosting.views.OpenNebulaManager") as view_manager,
            patch(
                "opennebula_api.serializers.OpenNebulaManager"
            ) as serializer_manager,
        ):
            view_manager.return_value.get_vms.return_value = []
            view_manager.return_value.try_get_templates.return_value = []
            serializer_manager.return_value.try_get_templates.return_value = []

            response = self.customer_client.get(self.url)

        self.assertEqual(response.status_code, 200)
        self.assertTemplateUsed(response, self.expected_template)


class OrdersHostingListViewTest(TestCase):
    def setUp(self):
        self.customer, self.customer_client = create_customer_client()
        self.stripe_customer = mommy.make(
            StripeCustomer, user=self.customer
        )
        orders = mommy.make(
            HostingOrder,
            customer=self.stripe_customer,
            _quantity=20,
        )
        self.orders = sorted(
            orders, key=lambda order: order.id, reverse=True
        )
        self.url = reverse("hosting:orders")
        self.view = OrdersHostingListView()
        self.expected_template = "hosting/orders.html"


    def test_get(self):
        response = self.client.get(self.url)
        expected_url = (
            f"{reverse('hosting:login')}?next={self.url}"
        )
        self.assertRedirects(response, expected_url)

        response = self.customer_client.get(self.url)
        self.assertEqual(response.status_code, 200)
        self.assertEqual(
            list(response.context["orders"]),
            self.orders[:10],
        )
        self.assertTemplateUsed(response, self.expected_template)


class OrdersHostingListViewTest(BaseTestCase):

    def setUp(self):
        super(OrdersHostingListViewTest, self).setUp()

        self.stripe_customer = mommy.make(StripeCustomer, user=self.customer)
        _orders = mommy.make(HostingOrder, customer=self.stripe_customer, _quantity=20)
        self.orders = sorted(_orders, key=lambda order: order.id, reverse=True)
        self.url = reverse('hosting:orders')
        self.view = OrdersHostingListView()
        self.expected_template = 'hosting/orders.html'

    def url_resolve_to_view_correctly(self):
        found = resolve(self.url)
        self.assertEqual(found.func.__name__, self.view.__name__)

    def test_get(self):

        # Anonymous user should get redirect to login
        response = self.client.get(self.url)
        expected_url = "%s?next=%s" % (reverse('hosting:login'), reverse('hosting:orders'))
        self.assertRedirects(response, expected_url=expected_url,
                             status_code=302, target_status_code=200)

        # Customer should be able to get his orders
        response = self.customer_client.get(self.url, follow=True)
        self.assertEqual(response.status_code, 200)
        self.assertEqual(list(response.context['orders']), self.orders[:10])
        self.assertTemplateUsed(response, self.expected_template)


class LoginViewTest(TestCase):

    def setUp(self):
        self.url = reverse('hosting:login')
        self.view = LoginView
        self.expected_template = 'hosting/login.html'
        self.user = mommy.make('membership.CustomUser', validated=1)
        self.password = 'fake_password'
        self.user.set_password(self.password)
        self.user.save()

    def test_get(self):
        response = self.client.get(self.url)
        self.assertEqual(response.status_code, 200)
        self.assertTemplateUsed(response, self.expected_template)

    def test_anonymous_user_can_login(self):
        data = {
            'email': self.user.email,
            'password': self.password
        }
        response = self.client.post(self.url, data=data, follow=True)
        self.assertEqual(response.context['user'], self.user)
        self.assertEqual(response.status_code, 200)


class SignupViewTest(TestCase):
    def setUp(self):
        self.url = reverse("hosting:signup")
        self.expected_template = "hosting/signup.html"
        self.view = SignupView

        self.signup_data = {
            "name": "ungleich",
            "email": "test@ungleich.ch",
            "password": "fake_password",
            "confirm_password": "fake_password",
        }

    def test_get(self):
        response = self.client.get(self.url)

        self.assertEqual(response.status_code, 200)
        self.assertTemplateUsed(response, self.expected_template)

    @patch("membership.models.LdapManager")
    def test_anonymous_user_can_signup(self, mock_ldap_manager):
        ldap_manager = mock_ldap_manager.return_value

        # assign_username() expects:
        # exist, entries = ldap_manager.check_user_exists(...)
        ldap_manager.check_user_exists.return_value = (False, [])

        response = self.client.post(
            self.url,
            data=self.signup_data,
            follow=True,
        )

        self.assertEqual(response.status_code, 200)

        user = CustomUser.objects.get(
            email=self.signup_data["email"]
        )

        self.assertTrue(
            user.check_password("fake_password")
        )


class PasswordResetViewTest(BaseTestCase):

    def setUp(self):
        super(PasswordResetViewTest, self).setUp()

        self.url = reverse('hosting:reset_password')
        self.view = PasswordResetView
        self.expected_template = 'hosting/reset_password.html'
        self.user = mommy.make('membership.CustomUser')
        self.password = 'fake_password'
        self.user.set_password(self.password)
        self.user.save()

        self.post_data = {
            'email': self.user.email
        }


    def test_get(self):
        response = self.client.get(self.url)
        self.assertEqual(response.status_code, 200)
        self.assertTemplateUsed(response, self.expected_template)

    def test_post(self):
        response = self.client.post(self.url, data=self.post_data, follow=True)
        self.assertEqual(response.status_code, 200)

    def test_test_generate_email_context(self):
        context = self.setup_view(self.view()).test_generate_email_context(
            self.user
        )
        self.assertEqual(context.get('user'), self.user)
        self.assertEqual(context.get('site_name'), settings.DCL_TEXT)


class PasswordResetConfirmViewTest(BaseTestCase):

    def setUp(self):
        super(PasswordResetConfirmViewTest, self).setUp()

        self.view = PasswordResetConfirmView
        self.expected_template = 'hosting/confirm_reset_password.html'
        self.user = mommy.make('membership.CustomUser')
        self.password = 'fake_password'
        self.user.set_password(self.password)
        self.user.save()

        self.token = default_token_generator.make_token(self.user)
        self.uid = urlsafe_base64_encode(force_bytes(self.user.pk))
        self.url = reverse('hosting:reset_password_confirm',
                           kwargs={'token': self.token, 'uidb64': self.uid})

        self.post_data = {
            'new_password1': 'new_password',
            'new_password2': 'new_password'
        }

    def test_get(self):
        response = self.client.get(self.url)
        self.assertEqual(response.status_code, 200)
        self.assertTemplateUsed(response, self.expected_template)

    # def test_post(self):
    #     response = self.client.post(
    #         self.url, data=self.post_data, follow=True
    #     )
    #     self.assertEqual(response.status_code, 200)
    #     self.assertTrue(not response.context['form'].errors)