from django.test import TestCase, Client

from files.models import File
from inventory.models import Event, Container, Item

client = Client()


class ItemTestCase(TestCase):

    def setUp(self):
        super().setUp()
        self.event = Event.objects.create(slug='EVENT', name='Event')
        self.box = Container.objects.create(name='BOX')

    def test_empty(self):
        response = client.get(f'/api/1/{self.event.slug}/item')
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.content, b'[]')

    def test_members(self):
        item = Item.objects.create(container=self.box, event=self.event, description='1')
        response = client.get(f'/api/1/{self.event.slug}/item')
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.json(), [{'uid': 1, 'description': '1', 'box': 'BOX', 'cid': self.box.cid, 'file': None}])

    def test_members_with_file(self):
        import base64
        item = Item.objects.create(container=self.box, event=self.event, description='1')
        file = File.objects.create(item=item, data=base64.b64encode(b"foo").decode('utf-8'))
        response = client.get(f'/api/1/{self.event.slug}/item')
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.json(),
                         [{'uid': 1, 'description': '1', 'box': 'BOX', 'cid': self.box.cid, 'file': file.hash}])

    def test_multi_members(self):
        Item.objects.create(container=self.box, event=self.event, description='1')
        Item.objects.create(container=self.box, event=self.event, description='2')
        Item.objects.create(container=self.box, event=self.event, description='3')
        response = client.get(f'/api/1/{self.event.slug}/item')
        self.assertEqual(response.status_code, 200)
        self.assertEqual(len(response.json()), 3)

    def test_create_item(self):
        response = client.post(f'/api/1/{self.event.slug}/item', {'cid': self.box.cid, 'description': '1'})
        self.assertEqual(response.status_code, 201)
        self.assertEqual(response.json(), {'uid': 1, 'description': '1', 'box': 'BOX', 'cid': self.box.cid, 'file': None})
        self.assertEqual(len(Item.objects.all()), 1)
        self.assertEqual(Item.objects.all()[0].uid, 1)
        self.assertEqual(Item.objects.all()[0].description, '1')
        self.assertEqual(Item.objects.all()[0].container.cid, self.box.cid)

    #def test_create_item_fail(self):
    #    response = client.post(f'/api/1/{self.event.slug}/item/', {'cid': self.box.cid})
    #    self.assertEqual(response.status_code, 500)

    def test_update_item(self):
        item = Item.objects.create(container=self.box, event=self.event, description='1')
        response = client.put(f'/api/1/{self.event.slug}/item/{item.uid}', {'description': '2'}, content_type='application/json')
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.json(),
                         {'uid': 1, 'description': '2', 'box': 'BOX', 'cid': self.box.cid, 'file': None})
        self.assertEqual(len(Item.objects.all()), 1)
        self.assertEqual(Item.objects.all()[0].uid, 1)
        self.assertEqual(Item.objects.all()[0].description, '2')
        self.assertEqual(Item.objects.all()[0].container.cid, self.box.cid)

    def test_delete_item(self):
        item = Item.objects.create(container=self.box, event=self.event, description='1')
        Item.objects.create(container=self.box, event=self.event, description='2')
        self.assertEqual(len(Item.objects.all()), 2)
        response = client.delete(f'/api/1/{self.event.slug}/item/{item.uid}')
        self.assertEqual(response.status_code, 204)
        self.assertEqual(len(Item.objects.all()), 1)

    def test_delete_item2(self):
        Item.objects.create(container=self.box, event=self.event, description='1')
        item2 = Item.objects.create(container=self.box, event=self.event, description='2')
        self.assertEqual(len(Item.objects.all()), 2)
        response = client.delete(f'/api/1/{self.event.slug}/item/{item2.uid}')
        self.assertEqual(response.status_code, 204)
        self.assertEqual(len(Item.objects.all()), 1)
        item3 = Item.objects.create(container=self.box, event=self.event, description='3')
        self.assertEqual(item3.uid, 3)
        self.assertEqual(len(Item.objects.all()), 2)

    def test_item_count(self):
        Item.objects.create(container=self.box, event=self.event, description='1')
        Item.objects.create(container=self.box, event=self.event, description='2')
        response = client.get('/api/1/boxes')
        self.assertEqual(response.status_code, 200)
        self.assertEqual(len(response.json()), 1)
        self.assertEqual(response.json()[0]['itemCount'], 2)

    def test_item_nonexistent(self):
        response = client.get(f'/api/1/NOEVENT/item')
        self.assertEqual(response.status_code, 404)