- implementing immutable.js

app/domain/Item.js

@@ -0,0 +1,43 @@
+import { List, Record } from 'immutable';
+
+export default class Item extends Record({
+  bidCount: 0,
+  bidIncrement: 10,
+  catalogNumber: null,
+  currentPrice: 0,
+  description: null,
+  donor: null,
+  end: null,
+  estimatedValue: null,
+  eventId: null,
+  hideAfterEnd: false,
+  hideBeforeStart: false,
+  id: null,
+  images: new List(),
+  isShippable: false,
+  notifyOnAvailable: false,
+  quantityAvailable: 1,
+  soldCount: 0,
+  start: null,
+  startingPrice: null,
+  subtitle: null,
+  title: null,
+  type: null,
+  shippingCost: 0,
+}) {
+  get isSoldOut() {
+    return this.quantityAvailable > this.soldCount;
+  }
+
+  get totalWithShipping() {
+    return this.currentPrice + this.shippingCost;
+  }
+}
+
+Item.fromJS = (data = {}) => {
+  return new Item({
+    id: data._id,
+    ...data,
+    images: List(data.images),
+  });
+};