Renamed from pyblackbird_cc to alphabetlearning - everywhere

1 files changed, 71 insertions, 0 deletions

diff --git a/alphabetlearning/payments/models.py b/alphabetlearning/payments/models.py
new file mode 100644
index 0000000..80d93c2
--- /dev/null
+++ b/alphabetlearning/payments/models.py
@@ -0,0 +1,71 @@
+from django.conf import settings
+from django.core.exceptions import ValidationError
+from django.db import models
+
+from alphabetlearning.resources.models import Resource
+
+
+class Product(models.Model):
+    name = models.CharField(max_length=255)
+    stripe_product_id = models.CharField(max_length=100)
+
+
+class Price(models.Model):
+    product = models.ForeignKey(Product, on_delete=models.CASCADE)
+    price = models.IntegerField(default=0)
+    stripe_price_id = models.CharField(max_length=100)
+
+    def get_display_price(self):
+        return "{0:.2f}".format(self.price / 100)
+
+
+class ShoppingCart(models.Model):
+    user = models.OneToOneField(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+
+    def __str__(self):
+        return f"Shopping cart for {self.user.email}"
+
+    def add_resource(self, resource: Resource):
+        if CartItem.objects.filter(cart=self, resource=resource).exists():
+            raise ValidationError(f"{resource.name} is already in your shopping cart.")
+        item, created = CartItem.objects.get_or_create(
+            cart=self,
+            resource=resource,
+        )
+        if not created:
+            item.save()
+
+
+class CartItem(models.Model):
+    cart = models.ForeignKey(ShoppingCart, on_delete=models.CASCADE, related_name="items")
+    resource = models.ForeignKey(Resource, on_delete=models.CASCADE)
+    added_at = models.DateTimeField(auto_now_add=True)
+
+    class Meta:
+        unique_together = ("cart", "resource")
+
+    def __str__(self):
+        return f"{self.resource.name} in {self.cart.user.username}'s cart"
+
+
+class SubscriptionPlan(models.Model):
+    name = models.CharField(max_length=255)
+    price = models.DecimalField(max_digits=6, decimal_places=2)
+    description = models.TextField()
+    allowed_downloads = models.PositiveIntegerField()
+
+
+class Subscription(models.Model):
+    user = models.OneToOneField(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
+    plan = models.ForeignKey(SubscriptionPlan, on_delete=models.CASCADE)
+    is_active = models.BooleanField(default=False)
+    start_date = models.DateTimeField(null=True, blank=True)
+    end_date = models.DateTimeField(null=True, blank=True)
+
+    class Meta:
+        constraints = [models.UniqueConstraint(fields=["user", "plan"], name="unique_user_plan")]
+
+    def __str__(self):
+        return f"Subscription for {self.user.username}"