Initial commit

server/services.js

@@ -0,0 +1,35 @@
+import { defaultMenu, defaultSettings } from "./defaults.js";
+import { MenuItem } from "./models/MenuItem.js";
+import { Order } from "./models/Order.js";
+
+export function getSettings() {
+  return defaultSettings;
+}
+
+export async function ensureSeedMenu() {
+  const count = await MenuItem.countDocuments();
+  if (count === 0) {
+    await MenuItem.insertMany(defaultMenu);
+  }
+}
+
+export async function resetMenuToDefaults() {
+  await MenuItem.deleteMany({});
+  await MenuItem.insertMany(defaultMenu);
+  return MenuItem.find().sort({ category: 1, name: 1 });
+}
+
+export async function nextOrderNumber() {
+  const latest = await Order.findOne().sort({ number: -1 }).lean();
+  return (latest?.number ?? 1000) + 1;
+}
+
+export function computeOrderTotal(lines, settings = defaultSettings) {
+  return lines.reduce((sum, line) => {
+    const sizeDelta = settings.sizeOptions.find((option) => option.name === line.size)?.delta ?? 0;
+    const toppings = line.toppings.reduce((toppingSum, toppingName) => {
+      return toppingSum + (settings.toppings.find((item) => item.name === toppingName)?.price ?? 0);
+    }, 0);
+    return sum + line.basePrice + sizeDelta + toppings;
+  }, 0);
+}