Last bit of major changes

Closes #1
Closes #5
Closes #6
Closes #8
Closes #9
Closes #10

store/tests/test_checkout_flow.py

@@ -0,0 +1,90 @@
+from django.test import TestCase, Client
+from django.urls import reverse
+from users.models import User, Address, PaymentMethod
+from store.models import Seller, CardListing, Card, Set, Game, Cart, Order, OrderItem
+from django.utils.text import slugify
+
+class CheckoutFlowTest(TestCase):
+    def setUp(self):
+        self.client = Client()
+        # Create Buyer
+        self.user = User.objects.create_user(username='buyer', password='password')
+        self.client.login(username='buyer', password='password')
+        
+        # Create Address
+        self.address = Address.objects.create(
+            user=self.user,
+            name='Buyer Name',
+            street='123 Initial St',
+            city='New York',
+            state='NY',
+            zip_code='10001',
+            address_type='shipping'
+        )
+        
+        # Create Payment Method
+        self.pm = PaymentMethod.objects.create(
+            user=self.user,
+            brand='Visa',
+            last4='4242', # Mock
+            exp_month=12,
+            exp_year=2030,
+            billing_address=self.address
+        )
+        self.pm.card_number = '4242424242424242' # Encrypts
+        self.pm.save()
+        
+        # Create Seller and items
+        self.seller_user = User.objects.create_user(username='seller', password='password')
+        self.seller = Seller.objects.create(
+            user=self.seller_user,
+            store_name='Test Store',
+            slug='test-store',
+            minimum_order_amount=200,
+            shipping_cost=5
+        )
+        
+        self.game = Game.objects.create(name='Magic', slug='magic')
+        self.set = Set.objects.create(game=self.game, name='Alpha')
+        self.card = Card.objects.create(set=self.set, name='Black Lotus')
+        
+        self.listing = CardListing.objects.create(
+            card=self.card,
+            seller=self.seller,
+            price=100.00,
+            quantity=1,
+            status='listed'
+        )
+        
+    def test_checkout_process(self):
+        # Add to cart (requires manual cart creation or view call, let's create cart manually for speed)
+        from users.models import Buyer
+        buyer, _ = Buyer.objects.get_or_create(user=self.user)
+        cart = Cart.objects.create(buyer=buyer)
+        from store.models import CartItem
+        CartItem.objects.create(cart=cart, listing=self.listing, quantity=1)
+        
+        # Get checkout page
+        response = self.client.get(reverse('store:checkout'))
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(response, 'Checkout') 
+        self.assertContains(response, 'Total: $100.00')
+        
+        # Post checkout
+        data = {
+            'shipping_address': self.address.id,
+            'payment_method': self.pm.id
+        }
+        response = self.client.post(reverse('store:checkout'), data)
+        self.assertEqual(response.status_code, 302) # Redirect to vault
+        
+        # Verify Order
+        order = Order.objects.filter(buyer=buyer).first()
+        self.assertIsNotNone(order)
+        self.assertEqual(order.status, 'paid')
+        self.assertIn('123 Initial St', order.shipping_address)
+        self.assertEqual(order.total_price, 105.00) # 100 + 5 shipping
+        
+        # Verify Stock
+        self.listing.refresh_from_db()
+        self.assertEqual(self.listing.quantity, 0)