Restructure project to root layout

src/db/index.ts

@@ -0,0 +1,32 @@
+import Dexie, { Table } from 'dexie';
+import { Area } from '../models/Area';
+import { PickItem } from '../models/PickItem';
+import { PickList } from '../models/PickList';
+import { Product } from '../models/Product';
+import { applyMigrations } from './migrations';
+import { seedDatabase } from './seed';
+
+export class StockFillDB extends Dexie {
+  products!: Table<Product>;
+  areas!: Table<Area>;
+  pickLists!: Table<PickList>;
+  pickItems!: Table<PickItem>;
+
+  constructor() {
+    super('stockfill');
+    this.version(1).stores({
+      products:
+        'id, name, category, barcode, archived, created_at, updated_at',
+      areas: 'id, name, created_at, updated_at',
+      pickLists: 'id, area_id, created_at, completed_at',
+      pickItems: 'id, pick_list_id, product_id, status, created_at, updated_at',
+    });
+  }
+}
+
+export const db = new StockFillDB();
+
+export const initializeDatabase = async () => {
+  await applyMigrations(db);
+  await seedDatabase(db);
+};

src/db/migrations.ts

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+import { StockFillDB } from './index';
+
+export const applyMigrations = async (db: StockFillDB) => {
+  // Future migrations can be added here.
+  await db.open();
+};

src/db/seed.ts

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+import { v4 as uuidv4 } from 'uuid';
+import { StockFillDB } from './index';
+
+const now = () => Date.now();
+
+export const seedDatabase = async (db: StockFillDB) => {
+  const areaCount = await db.areas.count();
+  if (areaCount === 0) {
+    await db.areas.bulkAdd([
+      { id: uuidv4(), name: 'Drinks', created_at: now(), updated_at: now() },
+      { id: uuidv4(), name: 'Snacks', created_at: now(), updated_at: now() },
+      { id: uuidv4(), name: 'Dairy', created_at: now(), updated_at: now() },
+    ]);
+  }
+
+  const productCount = await db.products.count();
+  if (productCount === 0) {
+    await db.products.bulkAdd([
+      {
+        id: uuidv4(),
+        name: 'Sparkling Water 500ml',
+        category: 'Drinks',
+        unit_type: 'bottle',
+        bulk_name: 'case',
+        units_per_bulk: 12,
+        archived: false,
+        created_at: now(),
+        updated_at: now(),
+      },
+      {
+        id: uuidv4(),
+        name: 'Salted Chips 50g',
+        category: 'Snacks',
+        unit_type: 'bag',
+        bulk_name: 'box',
+        units_per_bulk: 24,
+        archived: false,
+        created_at: now(),
+        updated_at: now(),
+      },
+      {
+        id: uuidv4(),
+        name: 'Chocolate Bar',
+        category: 'Confectionery',
+        unit_type: 'bar',
+        bulk_name: 'slab',
+        units_per_bulk: 32,
+        archived: false,
+        created_at: now(),
+        updated_at: now(),
+      },
+    ]);
+  }
+};