import random
import string

from rest_framework.test import APITestCase
from rest_framework import status

from core.factories import CustomUserFactory
from core.utils import get_tokens_for_user

from products.factories import ProductFactory
from companies.factories import CompanyFactory

from .models import StatsLog
from .factories import StatsLogFactory


# Create your tests here.
class TrackUserViewTest(APITestCase):
    """ProductViewSet tests
    """

    def setUp(self):
        """Tests setup
        """
        self.endpoint = '/api/v1/stats/me/'
        self.factory = StatsLogFactory
        self.model = StatsLog
        # create user
        self.password = ''.join(random.choices(string.ascii_uppercase, k = 10))
        self.user = CustomUserFactory(email="test@mail.com", password=self.password, is_active=True)

    # anon user
    def test_anon_user_can_only_post(self):
        """Not logged-in user can only POST data
        """
        # Create instance
        product = ProductFactory()

        data = {
            'action': 'VIEW',
            'action_object': {
                'model': 'product',
                'id': product.id,
            },
        }

        # Query endpoint
        response = self.client.get(self.endpoint)
        # Assert access is forbidden
        self.assertEqual(response.status_code, status.HTTP_405_METHOD_NOT_ALLOWED)

        # Query endpoint
        response = self.client.put(self.endpoint, data={})
        # Assert access is forbidden
        self.assertEqual(response.status_code, status.HTTP_405_METHOD_NOT_ALLOWED)

        # Query endpoint
        response = self.client.delete(self.endpoint, data={})
        # Assert access is forbidden
        self.assertEqual(response.status_code, status.HTTP_405_METHOD_NOT_ALLOWED)

        # Query endpoint
        response = self.client.post(self.endpoint, data=data, format='json')
        # Assert access is forbidden
        self.assertEqual(response.status_code, status.HTTP_201_CREATED)

    def test_anon_user_can_register_product_action(self):
        """Not logged-in user cannot modify existing instance
        """
        # Create instance
        product = ProductFactory()

        data = {
            'action': 'VIEW',
            'action_object': {
                'model': 'product',
                'id': product.id,
            },
        }

        # Query endpoint
        response = self.client.post(self.endpoint, data=data, format='json')

        # Assert forbidden code
        self.assertEqual(response.status_code, status.HTTP_201_CREATED)

    def test_anon_user_can_register_company_action(self):
        """Not logged-in user cannot modify existing instance
        """
        # Create instance
        instance = self.factory()

        # Query endpoint
        url = self.endpoint + f'{instance.pk}/'
        response = self.client.put(url, {}, format='json')

        # Assert forbidden code
        self.assertEqual(response.status_code, status.HTTP_401_UNAUTHORIZED)

    # authenticated user
    def test_auth_user_can_only_post(self):
        """Regular logged-in user can list instance
        """
        # Create instances
        instances = [self.factory() for n in range(random.randint(1,5))]

        # Authenticate user
        token = get_tokens_for_user(self.user)
        self.client.credentials(HTTP_AUTHORIZATION=f"Bearer {token['access']}")

        # Request list
        response = self.client.get(self.endpoint)

        # Assert access is allowed
        self.assertEqual(response.status_code, status.HTTP_200_OK)

        # Assert all instances are returned
        self.assertEqual(len(instances), len(response.data))

    def test_auth_user_can_register_product_action(self):
        """Regular logged-in user can list instance
        """
        # Create instances
        instance = self.factory()

        # Authenticate user
        token = get_tokens_for_user(self.user)
        self.client.credentials(HTTP_AUTHORIZATION=f"Bearer {token['access']}")

        # Request list
        url = f"{self.endpoint}{instance.id}/"
        response = self.client.get(url)

        # Assert access is allowed
        self.assertEqual(response.status_code, status.HTTP_200_OK)
        data = json.loads(response.content)
        self.assertEquals(instance.id, data['id'])

    def test_auth_user_can_register_company_action(self):
        """Regular logged-in user can create new instance
        """
        # Define request data
        company = CompanyFactory()
        data = {
            'company': company.id,
            'sku': 'qwerewq',
            'name': 'qwerewq',
            'description': 'qwerewq',
            'url': 'http://qwerewq.com',
            'price': '12.21',
            'shipping_cost': '21.12',
            'shipping_terms': 'qwerewq',
            'source': 'SYNCHRONIZED',
            'sourcing_date': datetime.datetime.now().isoformat()+'Z',
            'update_date': datetime.datetime.now().isoformat()+'Z',
            'discount': '0.05',
            'stock': 22,
            'tags': ['tag1, tag2'],
            'category': 'Mr',
            'attributes': ['color/red', 'size/xxl'],
            'identifiers': '34rf34f43c43',
        }

        # Authenticate user
        token = get_tokens_for_user(self.user)
        self.client.credentials(HTTP_AUTHORIZATION=f"Bearer {token['access']}")

        # Query endpoint
        response = self.client.post(self.endpoint, data=data, format='json')
        # Assert endpoint returns created status
        self.assertEqual(response.status_code, status.HTTP_201_CREATED)

        # Assert instance exists on db
        self.assertTrue(self.model.objects.get(id=response.data['id']))


class StatsLogViewSetTest(APITestCase):
    """ProductViewSet tests
    """

    def setUp(self):
        """Tests setup
        """
        self.endpoint = '/api/v1/stats/'
        self.factory = StatsLogFactory
        self.model = StatsLog
        # create user
        self.password = ''.join(random.choices(string.ascii_uppercase, k = 10))
        self.user = CustomUserFactory(email="test@mail.com", password=self.password, is_active=True)
        self.instance_data = {
            'action_object': None,
            'user': self.user.id,
            'anonymous': False,
            'ip_address': None,
            'geo': None,
            'contact': None,
            'shop': True,

        }
        self.alt_data = {
            'action_object': None,
            'user': self.user.id,
            'anonymous': True,
            'ip_address': None,
            'geo': None,
            'contact': None,
            'shop': False,
        }

    # anonymous user
    def test_anon_user_cannot_crud(self):
        """Not logged-in user cannot access endpoint at all
        """

        # Query endpoint
        response = self.client.get(self.endpoint)
        # Assert access is forbidden
        self.assertEqual(response.status_code, status.HTTP_401_UNAUTHORIZED)

        # Query endpoint
        response = self.client.post(self.endpoint, data={})
        # Assert access is forbidden
        self.assertEqual(response.status_code, status.HTTP_401_UNAUTHORIZED)

        # Query endpoint
        response = self.client.put(self.endpoint, data={})
        # Assert access is forbidden
        self.assertEqual(response.status_code, status.HTTP_401_UNAUTHORIZED)

        # Query endpoint
        response = self.client.delete(self.endpoint)
        # Assert access is forbidden
        self.assertEqual(response.status_code, status.HTTP_401_UNAUTHORIZED)

    # authenticated user
    def test_auth_user_cannot_crud(self):
        """Authenticated user cannot access endpoint at all
        """
        # Authenticate user
        token = get_tokens_for_user(self.user)
        self.client.credentials(HTTP_AUTHORIZATION=f"Bearer {token['access']}")

        # Query endpoint
        response = self.client.get(self.endpoint)
        # Assert access is forbidden
        self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN)

        # Query endpoint
        response = self.client.post(self.endpoint, data={})
        # Assert access is forbidden
        self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN)

        # Query endpoint
        response = self.client.put(self.endpoint, data={})
        # Assert access is forbidden
        self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN)

        # Query endpoint
        response = self.client.delete(self.endpoint)
        # Assert access is forbidden
        self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN)

    # admin user
    def test_admin_user_can_list_instance(self):
        """Admin user can list instance
        """
        # make user be admin
        self.user.is_staff = True
        self.user.save()

        # Create instances
        instances = [self.factory() for n in range(random.randint(1,5))]

        # Authenticate user
        token = get_tokens_for_user(self.user)
        self.client.credentials(HTTP_AUTHORIZATION=f"Bearer {token['access']}")

        # Request list
        response = self.client.get(self.endpoint)

        # Assert access is allowed
        self.assertEqual(response.status_code, status.HTTP_200_OK)

        # Assert all instances are returned
        self.assertEqual(len(instances), len(response.data))

    def test_admin_user_can_create_instance(self):
        """Admin user can create new instance
        """
        # make user be admin
        self.user.is_staff = True
        self.user.save()

        # Authenticate user
        token = get_tokens_for_user(self.user)
        self.client.credentials(HTTP_AUTHORIZATION=f"Bearer {token['access']}")

        # Query endpoint
        response = self.client.post(self.endpoint, data=self.instance_data, format='json')

        # Assert endpoint returns created status
        self.assertEqual(response.status_code, status.HTTP_201_CREATED)

        # Assert instance exists on db
        self.assertTrue(self.model.objects.get(id=response.data['id']))

    def test_admin_user_can_modify_instance(self):
        """Admin user can modify existing instance
        """
        # make user be admin
        self.user.is_staff = True
        self.user.save()

        # Create instances
        instance = self.factory()

        # Authenticate user
        token = get_tokens_for_user(self.user)
        self.client.credentials(HTTP_AUTHORIZATION=f"Bearer {token['access']}")

        # Query endpoint
        url = self.endpoint + f'{instance.pk}/'
        response = self.client.put(url, self.alt_data, format='json')

        # Assert endpoint returns OK code
        self.assertEqual(response.status_code, status.HTTP_200_OK)

    def test_admin_user_can_delete_instance(self):
        """Admin user can delete existing instance
        """
        # make user be admin
        self.user.is_staff = True
        self.user.save()

        # Create instances
        instance = self.factory()

        # Authenticate user
        token = get_tokens_for_user(self.user)
        self.client.credentials(HTTP_AUTHORIZATION=f"Bearer {token['access']}")

        # Query endpoint
        url = self.endpoint + f'{instance.pk}/'
        response = self.client.delete(url)

        # assert 204 no content
        self.assertEqual(response.status_code, status.HTTP_204_NO_CONTENT)
        # Assert instance doesn't exists anymore on db
        self.assertFalse(self.model.objects.filter(id=instance.pk).exists())