rename project from SimpleshopTheme to Berrypod

All modules, configs, paths, and references updated.
836 tests pass, zero warnings.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

lib/berrypod_web/controllers/checkout_controller.ex

@@ -0,0 +1,129 @@
+defmodule BerrypodWeb.CheckoutController do
+  use BerrypodWeb, :controller
+
+  alias Berrypod.Cart
+  alias Berrypod.Orders
+  alias Berrypod.Shipping
+
+  require Logger
+
+  def create(conn, _params) do
+    cart_items = Cart.get_from_session(get_session(conn))
+    hydrated = Cart.hydrate(cart_items)
+
+    if hydrated == [] do
+      conn
+      |> put_flash(:error, "Your basket is empty")
+      |> redirect(to: ~p"/cart")
+    else
+      create_checkout(conn, hydrated)
+    end
+  end
+
+  defp create_checkout(conn, hydrated_items) do
+    # Create a pending order with price snapshots
+    case Orders.create_order(%{items: hydrated_items}) do
+      {:ok, order} ->
+        create_stripe_session(conn, order, hydrated_items)
+
+      {:error, _changeset} ->
+        Logger.error("Failed to create order")
+
+        conn
+        |> put_flash(:error, "Something went wrong. Please try again.")
+        |> redirect(to: ~p"/cart")
+    end
+  end
+
+  defp create_stripe_session(conn, order, hydrated_items) do
+    line_items =
+      Enum.map(hydrated_items, fn item ->
+        product_name =
+          if item.variant,
+            do: "#{item.name} — #{item.variant}",
+            else: item.name
+
+        %{
+          price_data: %{
+            currency: "gbp",
+            unit_amount: item.price,
+            product_data: %{name: product_name}
+          },
+          quantity: item.quantity
+        }
+      end)
+
+    base_url = BerrypodWeb.Endpoint.url()
+
+    params =
+      %{
+        mode: "payment",
+        line_items: line_items,
+        success_url: "#{base_url}/checkout/success?session_id={CHECKOUT_SESSION_ID}",
+        cancel_url: "#{base_url}/cart",
+        metadata: %{"order_id" => order.id},
+        shipping_address_collection: %{
+          allowed_countries: ["GB", "US", "CA", "AU", "DE", "FR", "NL", "IE", "AT", "BE"]
+        }
+      }
+      |> maybe_add_shipping_options(hydrated_items)
+
+    case Stripe.Checkout.Session.create(params) do
+      {:ok, session} ->
+        {:ok, _order} = Orders.set_stripe_session(order, session.id)
+
+        conn
+        |> redirect(external: session.url)
+
+      {:error, %Stripe.Error{message: message}} ->
+        Logger.error("Stripe session creation failed: #{message}")
+        Orders.mark_failed(order)
+
+        conn
+        |> put_flash(:error, "Payment setup failed. Please try again.")
+        |> redirect(to: ~p"/cart")
+
+      {:error, reason} ->
+        Logger.error("Stripe session creation failed: #{inspect(reason)}")
+        Orders.mark_failed(order)
+
+        conn
+        |> put_flash(:error, "Payment setup failed. Please try again.")
+        |> redirect(to: ~p"/cart")
+    end
+  end
+
+  defp maybe_add_shipping_options(params, hydrated_items) do
+    gb_result = Shipping.calculate_for_cart(hydrated_items, "GB")
+    us_result = Shipping.calculate_for_cart(hydrated_items, "US")
+
+    options =
+      []
+      |> maybe_add_option(gb_result, "UK delivery", 5, 10)
+      |> maybe_add_option(us_result, "International delivery", 10, 20)
+
+    if options == [] do
+      params
+    else
+      Map.put(params, :shipping_options, options)
+    end
+  end
+
+  defp maybe_add_option(options, {:ok, cost}, name, min_days, max_days) when cost > 0 do
+    option = %{
+      shipping_rate_data: %{
+        type: "fixed_amount",
+        display_name: name,
+        fixed_amount: %{amount: cost, currency: "gbp"},
+        delivery_estimate: %{
+          minimum: %{unit: "business_day", value: min_days},
+          maximum: %{unit: "business_day", value: max_days}
+        }
+      }
+    }
+
+    options ++ [option]
+  end
+
+  defp maybe_add_option(options, _result, _name, _min, _max), do: options
+end