feat: add route for retrieving a swap (#326)

* feat: swap details

* test: add get-swap and list-swaps route tests

* test: add swaps integration tests

* fix: use IdMap.getId in complete-cart unit test

commit 289d191 uses the IdMap.getId in the SwapServiceMock retrieve method, so a unit test in complete-cart needs to be adjusted accordingly

* fix: prefix default fields and totals with 'cart'

integration-tests/api/helpers/swap-seeder.js

@@ -11,6 +11,7 @@ const {
   Region,
   Order,
   Swap,
+  Cart,
   Return,
 } = require("@medusajs/medusa");
 
@@ -52,16 +53,64 @@ module.exports = async (connection, data = {}) => {
 
   orderWithSwap = await manager.save(orderWithSwap);
 
+  const cart = manager.create(Cart, {
+    id: "test-cart",
+    customer_id: "test-customer",
+    email: "test-customer@email.com",
+    shipping_address_id: "test-shipping-address",
+    billing_address_id: "test-billing-address",
+    region_id: "test-region",
+    type: "swap",
+    metadata: {
+      swap_id: "test-swap",
+      parent_order_id: orderWithSwap.id,
+    },
+  });
+
+  await manager.save(cart);
+
+  const swap = manager.create(Swap, {
+    id: "test-swap",
+    order_id: "order-with-swap",
+    payment_status: "captured",
+    fulfillment_status: "fulfilled",
+    cart_id: "test-cart",
+    payment: {
+      id: "test-payment-swap",
+      amount: 10000,
+      currency_code: "usd",
+      amount_refunded: 0,
+      provider_id: "test",
+      data: {},
+    },
+    additional_items: [
+      {
+        id: "test-item-swapped",
+        fulfilled_quantity: 1,
+        title: "Line Item",
+        description: "Line Item Desc",
+        thumbnail: "https://test.js/1234",
+        unit_price: 9000,
+        quantity: 1,
+        variant_id: "test-variant-2",
+        cart_id: "test-cart",
+      },
+    ],
+  });
+
+  await manager.save(swap);
+
   const li = manager.create(LineItem, {
-    id: "test-item-2",
+    id: "return-item-1",
     fulfilled_quantity: 1,
-    title: "Line Item",
+    title: "Return Line Item",
     description: "Line Item Desc",
     thumbnail: "https://test.js/1234",
     unit_price: 8000,
     quantity: 1,
     variant_id: "test-variant",
     order_id: orderWithSwap.id,
+    cart_id: cart.id,
   });
 
   await manager.save(li);
@@ -80,34 +129,30 @@ module.exports = async (connection, data = {}) => {
 
   await manager.save(li2);
 
-  const swap = manager.create(Swap, {
-    id: "test-swap",
-    order_id: "order-with-swap",
-    payment_status: "captured",
-    fulfillment_status: "fulfilled",
-    payment: {
-      id: "test-payment-swap",
-      amount: 10000,
-      currency_code: "usd",
-      amount_refunded: 0,
-      provider_id: "test",
-      data: {},
-    },
-    additional_items: [
-      {
-        id: "test-item-swapped",
-        fulfilled_quantity: 1,
-        title: "Line Item",
-        description: "Line Item Desc",
-        thumbnail: "https://test.js/1234",
-        unit_price: 8000,
-        quantity: 1,
-        variant_id: "test-variant-2",
-      },
-    ],
+  const swapReturn = await manager.create(Return, {
+    swap_id: swap.id,
+    order_id: orderWithSwap.id,
+    item_id: li.id,
+    refund_amount: li.quantity * li.unit_price,
+    // shipping_method_id: ,
   });
 
-  await manager.save(swap);
+  await manager.save(swapReturn);
+
+  const return_item1 = manager.create(LineItem, {
+    ...li,
+    unit_price: -1 * li.unit_price,
+  });
+
+  await manager.save(return_item1);
+
+  await manager.insert(ShippingMethod, {
+    id: "another-test-method",
+    shipping_option_id: "test-option",
+    cart_id: "test-cart",
+    price: 1000,
+    data: {},
+  });
 
   const swapOnSwap = manager.create(Swap, {
     id: "swap-on-swap",