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

from authentication.models import ExtendedUser
from files.models import File
from inventory.models import Event, Container, Item
from knox.models import AuthToken


class FileTestCase(TestCase):

    def setUp(self):
        super().setUp()
        self.user = ExtendedUser.objects.create_user('testuser', 'test', 'test')
        self.user.user_permissions.add(*Permission.objects.all())
        self.user.save()
        self.token = AuthToken.objects.create(user=self.user)
        self.client = Client(headers={'Authorization': 'Token ' + self.token[1]})
        self.event = Event.objects.create(slug='EVENT', name='Event')
        self.box = Container.objects.create(name='BOX')

    def test_list_files(self):
        import base64
        item = File.objects.create(data="data:text/plain;base64," + base64.b64encode(b"foo").decode('utf-8'))
        response = self.client.get('/api/2/files/')
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.json()[0]['hash'], item.hash)
        self.assertEqual(len(response.json()[0]['hash']), 64)

    def test_one_file(self):
        import base64
        item = File.objects.create(data="data:text/plain;base64," + base64.b64encode(b"foo").decode('utf-8'))
        response = self.client.get(f'/api/2/files/{item.hash}/')
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.json()['hash'], item.hash)
        self.assertEqual(len(response.json()['hash']), 64)

    def test_create_file(self):
        import base64
        Item.objects.create(container=self.box, event=self.event, description='1')
        item = Item.objects.create(container=self.box, event=self.event, description='2')
        response = self.client.post('/api/2/files/',
                                    {'data': "data:text/plain;base64," + base64.b64encode(b"foo").decode('utf-8')},
                                    content_type='application/json')
        self.assertEqual(response.status_code, 201)
        self.assertEqual(len(response.json()['hash']), 64)

    def test_delete_file(self):
        import base64
        item = Item.objects.create(container=self.box, event=self.event, description='1')
        File.objects.create(item=item, data="data:text/plain;base64," + base64.b64encode(b"foo").decode('utf-8'))
        file = File.objects.create(item=item, data="data:text/plain;base64," + base64.b64encode(b"bar").decode('utf-8'))
        self.assertEqual(len(File.objects.all()), 2)
        response = self.client.delete(f'/api/2/files/{file.hash}/')
        self.assertEqual(response.status_code, 204)