Initial content

Chapter 20/Beginning of Chapter/sportsstore/dist/data/cart_helpers.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.getCartDetail = void 0;
+const _1 = require(".");
+const getCartDetail = async (cart) => {
+    const ids = cart.lines.map(l => l.productId);
+    const db_data = await _1.catalog_repository.getProductDetails(ids);
+    const products = Object.fromEntries(db_data.map(p => [p.id, p]));
+    const lines = cart.lines.map(line => ({
+        product: products[line.productId],
+        quantity: line.quantity,
+        subtotal: products[line.productId].price * line.quantity
+    }));
+    const total = lines.reduce((total, line) => total + line.subtotal, 0);
+    return { lines, total };
+};
+exports.getCartDetail = getCartDetail;