from django.test import TestCase, Client
from django.contrib.auth.models import Permission, Group

from knox.models import AuthToken

from authentication.models import ExtendedUser, EventPermission
from core import settings
from inventory.models import Event


class UserApiTest(TestCase):

    def setUp(self):
        self.event = Event.objects.create(name='testevent', slug='testevent')
        self.group1 = Group.objects.create(name='testgroup1')
        self.group2 = Group.objects.create(name='testgroup2')
        self.group1.permissions.add(Permission.objects.get(codename='add_item'))
        self.group1.permissions.add(Permission.objects.get(codename='view_item'))
        self.group2.permissions.add(Permission.objects.get(codename='view_event'))
        self.group2.permissions.add(Permission.objects.get(codename='view_item'))
        self.user = ExtendedUser.objects.create_user('testuser', 'test', 'test')
        self.user.user_permissions.add(Permission.objects.get(codename='add_event'))
        self.user.groups.add(self.group1)
        self.user.groups.add(self.group2)
        self.user.save()
        EventPermission.objects.create(event=self.event, user=self.user,
                                       permission=Permission.objects.get(codename='delete_item'))
        self.user.save()
        self.token = AuthToken.objects.create(user=self.user)
        self.client = Client(headers={'Authorization': 'Token ' + self.token[1]})

    def test_users(self):
        response = self.client.get('/api/2/users/')
        self.assertEqual(response.status_code, 200)
        self.assertEqual(len(response.json()), 2)
        self.assertEqual(response.json()[0]['username'], settings.LEGACY_USER_NAME)
        self.assertEqual(response.json()[0]['email'], 'mail@' + settings.MAIL_DOMAIN)
        self.assertEqual(response.json()[0]['first_name'], '')
        self.assertEqual(response.json()[0]['last_name'], '')
        self.assertEqual(response.json()[0]['id'], 1)
        self.assertEqual(response.json()[1]['username'], 'testuser')
        self.assertEqual(response.json()[1]['email'], 'test')
        self.assertEqual(response.json()[1]['first_name'], '')
        self.assertEqual(response.json()[1]['last_name'], '')

    def test_self_user(self):
        response = self.client.get('/api/2/self/')
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.json()['username'], 'testuser')
        self.assertEqual(response.json()['email'], 'test')
        self.assertEqual(response.json()['first_name'], '')
        self.assertEqual(response.json()['last_name'], '')
        permissions = response.json()['permissions']
        self.assertEqual(len(permissions), 5)

    def test_register_user(self):
        anonymous = Client()
        response = anonymous.post('/api/2/register/', {'username': 'testuser2', 'password': 'test', 'email': 'test2'},
                                  content_type='application/json')
        self.assertEqual(response.status_code, 201)
        self.assertEqual(response.json()['username'], 'testuser2')
        self.assertEqual(response.json()['email'], 'test2')
        self.assertEqual(len(ExtendedUser.objects.all()), 3)
        self.assertEqual(ExtendedUser.objects.get(username='testuser2').email, 'test2')
        self.assertTrue(ExtendedUser.objects.get(username='testuser2').check_password('test'))

    def test_register_user_duplicate(self):
        anonymous = Client()
        response = anonymous.post('/api/2/register/', {'username': 'testuser', 'password': 'test', 'email': 'test2'},
                                  content_type='application/json')
        self.assertEqual(response.status_code, 400)
        self.assertEqual(response.json()['errors']['username'], 'Username already exists')
        self.assertEqual(len(ExtendedUser.objects.all()), 2)

    def test_register_user_no_username(self):
        anonymous = Client()
        response = anonymous.post('/api/2/register/', {'password': 'test', 'email': 'test2'},
                                  content_type='application/json')
        self.assertEqual(response.status_code, 400)
        self.assertEqual(response.json()['errors']['username'], 'Username is required')
        self.assertEqual(len(ExtendedUser.objects.all()), 2)

    def test_register_user_no_password(self):
        anonymous = Client()
        response = anonymous.post('/api/2/register/', {'username': 'testuser2', 'email': 'test2'},
                                  content_type='application/json')
        self.assertEqual(response.status_code, 400)
        self.assertEqual(response.json()['errors']['password'], 'Password is required')
        self.assertEqual(len(ExtendedUser.objects.all()), 2)

    def test_register_user_no_email(self):
        anonymous = Client()
        response = anonymous.post('/api/2/register/', {'username': 'testuser2', 'password': 'test'},
                                  content_type='application/json')
        self.assertEqual(response.status_code, 400)
        self.assertEqual(response.json()['errors']['email'], 'Email is required')
        self.assertEqual(len(ExtendedUser.objects.all()), 2)

    def test_register_user_duplicate_email(self):
        anonymous = Client()
        response = anonymous.post('/api/2/register/', {'username': 'testuser2', 'password': 'test', 'email': 'test'},
                                  content_type='application/json')
        self.assertEqual(response.status_code, 400)
        self.assertEqual(response.json()['errors']['email'], 'Email already exists')
        self.assertEqual(len(ExtendedUser.objects.all()), 2)

    def test_get_token(self):
        anonymous = Client()
        response = anonymous.post('/api/2/login/', {'username': 'testuser', 'password': 'test'},
                                  content_type='application/json')
        self.assertEqual(response.status_code, 200)
        self.assertTrue('token' in response.json())

    def test_legacy_user(self):
        response = self.client.get('/api/2/users/1/')
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.json()['username'], settings.LEGACY_USER_NAME)
        self.assertEqual(response.json()['email'], 'mail@' + settings.MAIL_DOMAIN)
        self.assertEqual(response.json()['first_name'], '')
        self.assertEqual(response.json()['last_name'], '')
        self.assertEqual(response.json()['id'], 1)

    def test_get_legacy_user_token(self):
        anonymous = Client()
        response = anonymous.post('/api/2/login/', {
            'username': settings.LEGACY_USER_NAME, 'password': settings.LEGACY_USER_PASSWORD},
                                  content_type='application/json')
        self.assertEqual(response.status_code, 200)
        self.assertTrue('token' in response.json())