Deduplicate prefilled pick list products

src/screens/StartPickListScreen.test.tsx

@@ -0,0 +1,168 @@
+import { MemoryRouter } from 'react-router-dom';
+import { render, screen, waitFor } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+import { StartPickListScreen } from './StartPickListScreen';
+
+const navigateMock = vi.fn();
+
+vi.mock('react-router-dom', async (importOriginal) => {
+  const actual = await importOriginal<typeof import('react-router-dom')>();
+  return {
+    ...actual,
+    useNavigate: () => navigateMock,
+  };
+});
+
+const areasMock = [{ id: 'area-1', name: 'Front Counter', created_at: 0, updated_at: 0 }];
+const categoriesMock = [
+  { id: 'cat-1', name: 'Drinks', created_at: 0, updated_at: 0 },
+  { id: 'cat-2', name: 'Snacks', created_at: 0, updated_at: 0 },
+];
+
+const productsMock = [
+  {
+    id: 'prod-1',
+    name: 'Soda',
+    category: 'Drinks',
+    unit_type: 'unit',
+    bulk_name: 'box',
+    archived: false,
+    created_at: 0,
+    updated_at: 0,
+  },
+  {
+    id: 'prod-2',
+    name: 'Chips',
+    category: 'Snacks',
+    unit_type: 'unit',
+    bulk_name: 'box',
+    archived: false,
+    created_at: 0,
+    updated_at: 0,
+  },
+  {
+    id: 'prod-3',
+    name: 'Old Soda',
+    category: 'Drinks',
+    unit_type: 'unit',
+    bulk_name: 'box',
+    archived: true,
+    created_at: 0,
+    updated_at: 0,
+  },
+];
+
+const pickListAddMock = vi.fn();
+const pickItemsBulkAddMock = vi.fn();
+const transactionMock = vi.fn();
+const productsToArrayMock = vi.fn();
+
+vi.mock('../hooks/dataHooks', () => ({
+  useAreas: () => areasMock,
+  useCategories: () => categoriesMock,
+}));
+
+vi.mock('../context/DBProvider', () => ({
+  useDatabase: () => ({
+    pickLists: { add: pickListAddMock },
+    pickItems: { bulkAdd: pickItemsBulkAddMock },
+    products: { toArray: productsToArrayMock },
+    transaction: transactionMock,
+  }),
+}));
+
+vi.mock('uuid', () => ({
+  v4: () => 'generated-id',
+}));
+
+beforeEach(() => {
+  navigateMock.mockReset();
+  pickListAddMock.mockReset();
+  pickItemsBulkAddMock.mockReset();
+  transactionMock.mockReset();
+  productsToArrayMock.mockReset();
+  productsToArrayMock.mockResolvedValue(productsMock);
+  transactionMock.mockImplementation(async (_mode: string, ...args: unknown[]) => {
+    const callback = args[args.length - 1] as () => Promise<void>;
+    await callback();
+  });
+});
+
+describe('StartPickListScreen', () => {
+  it('shows category selection controls', () => {
+    render(
+      <MemoryRouter>
+        <StartPickListScreen />
+      </MemoryRouter>,
+    );
+
+    categoriesMock.forEach((category) => {
+      expect(screen.getByRole('checkbox', { name: category.name })).toBeInTheDocument();
+    });
+  });
+
+  it('prefills a new pick list with products from selected categories', async () => {
+    const user = userEvent.setup();
+
+    render(
+      <MemoryRouter>
+        <StartPickListScreen />
+      </MemoryRouter>,
+    );
+
+    await user.click(screen.getByLabelText(/area/i));
+    await user.click(screen.getByRole('option', { name: /front counter/i }));
+
+    await user.click(screen.getByRole('checkbox', { name: /drinks/i }));
+    await user.click(screen.getByRole('checkbox', { name: /snacks/i }));
+
+    await user.click(screen.getByRole('button', { name: /save pick list/i }));
+
+    await waitFor(() => expect(pickListAddMock).toHaveBeenCalled());
+    await waitFor(() => expect(pickItemsBulkAddMock).toHaveBeenCalled());
+
+    const pickItems = pickItemsBulkAddMock.mock.calls[0][0];
+
+    expect(pickItems).toHaveLength(2);
+    expect(pickItems.map((item: any) => item.product_id).sort()).toEqual(['prod-1', 'prod-2']);
+    pickItems.forEach((item: any) => {
+      expect(item.pick_list_id).toBe('generated-id');
+      expect(item.is_carton).toBe(false);
+      expect(item.quantity).toBe(1);
+      expect(item.status).toBe('pending');
+    });
+  });
+
+  it('deduplicates products when selected categories include overlaps', async () => {
+    const user = userEvent.setup();
+    productsToArrayMock.mockResolvedValue([
+      ...productsMock,
+      { ...productsMock[0] },
+      { ...productsMock[1], id: 'prod-2-duplicate' },
+    ]);
+
+    render(
+      <MemoryRouter>
+        <StartPickListScreen />
+      </MemoryRouter>,
+    );
+
+    await user.click(screen.getByLabelText(/area/i));
+    await user.click(screen.getByRole('option', { name: /front counter/i }));
+
+    await user.click(screen.getByRole('checkbox', { name: /drinks/i }));
+    await user.click(screen.getByRole('checkbox', { name: /snacks/i }));
+
+    await user.click(screen.getByRole('button', { name: /save pick list/i }));
+
+    await waitFor(() => expect(pickItemsBulkAddMock).toHaveBeenCalled());
+
+    const pickItems = pickItemsBulkAddMock.mock.calls[0][0];
+    const uniqueProductIds = new Set(pickItems.map((item: any) => item.product_id));
+
+    expect(pickItems).toHaveLength(2);
+    expect(uniqueProductIds.size).toBe(2);
+    expect(uniqueProductIds).toEqual(new Set(['prod-1', 'prod-2']));
+  });
+});

src/screens/StartPickListScreen.tsx

@@ -1,25 +1,98 @@
-import { Button, Container, MenuItem, Stack, TextField, Typography } from '@mui/material';
-import { useState } from 'react';
+import {
+  Button,
+  Checkbox,
+  Container,
+  FormControlLabel,
+  FormGroup,
+  MenuItem,
+  Stack,
+  TextField,
+  Typography,
+} from '@mui/material';
+import { useMemo, useState } from 'react';
 import { useNavigate } from 'react-router-dom';
 import { v4 as uuidv4 } from 'uuid';
-import { useAreas } from '../hooks/dataHooks';
+import { useAreas, useCategories } from '../hooks/dataHooks';
 import { useDatabase } from '../context/DBProvider';
 
 export const StartPickListScreen = () => {
   const areas = useAreas();
+  const categories = useCategories();
   const db = useDatabase();
   const navigate = useNavigate();
   const [areaId, setAreaId] = useState('');
   const [notes, setNotes] = useState('');
+  const [selectedCategories, setSelectedCategories] = useState<string[]>([]);
+
+  const sortedCategories = useMemo(
+    () =>
+      [...categories].sort((a, b) =>
+        a.name.localeCompare(b.name, undefined, { sensitivity: 'base' }),
+      ),
+    [categories],
+  );
+
+  const handleToggleCategory = (categoryId: string) => {
+    setSelectedCategories((current) =>
+      current.includes(categoryId)
+        ? current.filter((id) => id !== categoryId)
+        : [...current, categoryId],
+    );
+  };
 
   const start = async () => {
     if (!areaId) return;
     const pickListId = uuidv4();
-    await db.pickLists.add({
-      id: pickListId,
-      area_id: areaId,
-      created_at: Date.now(),
-      notes: notes.trim() || undefined,
+    const timestamp = Date.now();
+
+    const selectedCategoryNames = categories
+      .filter((category) => selectedCategories.includes(category.id))
+      .map((category) => category.name);
+
+    await db.transaction('rw', db.pickLists, db.pickItems, db.products, async () => {
+      await db.pickLists.add({
+        id: pickListId,
+        area_id: areaId,
+        created_at: timestamp,
+        notes: notes.trim() || undefined,
+      });
+
+      if (selectedCategoryNames.length === 0) {
+        return;
+      }
+
+      const products = await db.products.toArray();
+      const productsInCategories = products.filter(
+        (product) => selectedCategoryNames.includes(product.category) && !product.archived,
+      );
+
+      const uniqueProducts: typeof productsInCategories = [];
+      const seenNames = new Set<string>();
+
+      productsInCategories.forEach((product) => {
+        const nameKey = product.name.toLowerCase();
+        if (!seenNames.has(nameKey)) {
+          seenNames.add(nameKey);
+          uniqueProducts.push(product);
+        }
+      });
+
+      if (productsInCategories.length === 0) {
+        return;
+      }
+
+      await db.pickItems.bulkAdd(
+        uniqueProducts.map((product) => ({
+          id: uuidv4(),
+          pick_list_id: pickListId,
+          product_id: product.id,
+          quantity: 1,
+          is_carton: false,
+          status: 'pending',
+          created_at: timestamp,
+          updated_at: timestamp,
+        })),
+      );
     });
     navigate(`/pick-lists/${pickListId}`);
   };
@@ -47,12 +120,30 @@ export const StartPickListScreen = () => {
           ))}
         </TextField>
         <TextField
+          fullWidth
           label="Notes (optional)"
           value={notes}
           onChange={(event) => setNotes(event.target.value)}
           multiline
           minRows={2}
         />
+        <Stack spacing={1}>
+          <Typography variant="subtitle2">Add categories to prefill products</Typography>
+          <FormGroup>
+            {sortedCategories.map((category) => (
+              <FormControlLabel
+                key={category.id}
+                control={
+                  <Checkbox
+                    checked={selectedCategories.includes(category.id)}
+                    onChange={() => handleToggleCategory(category.id)}
+                  />
+                }
+                label={category.name}
+              />
+            ))}
+          </FormGroup>
+        </Stack>
         <Button variant="contained" disabled={!areaId} onClick={start}>
           Save Pick List
         </Button>