README.md

@@ -196,6 +196,9 @@ Expected shapes today:
   Used for item-level edits from stock detail (for example identifier code updates).
 - `GET /{database}/kitchen/locations`
   Returns a nested location tree.
+- `GET /{database}/kitchen/categories`
+  Returns categories (paged). Frontend now resolves category labels from
+  `categories_detail` when present, and falls back to this endpoint by ID.
 
 ## Notes
 

src/api/categories.js

@@ -0,0 +1,90 @@
+import { apiRequest, getPath } from './client.js';
+
+const DEFAULT_LIST_PAGE_LIMIT = 100;
+
+function unwrapListPayload(payload) {
+  if (Array.isArray(payload)) {
+    return payload;
+  }
+
+  return payload?.data || payload?.entries || payload?.items || payload?.categories || [];
+}
+
+function hasExplicitPagination(filters = {}) {
+  return (
+    (filters.limit !== undefined && filters.limit !== null)
+    || (filters.offset !== undefined && filters.offset !== null)
+  );
+}
+
+function buildCategoryQuery(filters = {}) {
+  const query = {};
+  const searchName = filters.searchName || filters.search_name;
+  if (searchName) {
+    query.search_name = searchName;
+  }
+
+  if (filters.active !== undefined && filters.active !== null && filters.active !== '') {
+    query.active = Boolean(filters.active);
+  }
+
+  if (filters.orderBy || filters.order_by) {
+    query.order_by = filters.orderBy || filters.order_by;
+  }
+
+  if (filters.orderDir || filters.order_dir) {
+    query.order_dir = filters.orderDir || filters.order_dir;
+  }
+
+  if (filters.expanded !== undefined && filters.expanded !== null && filters.expanded !== '') {
+    query.expanded = Boolean(filters.expanded);
+  }
+
+  return query;
+}
+
+async function fetchAllCategoryPages(store, baseQuery = {}) {
+  const items = [];
+  let offset = 0;
+
+  while (true) {
+    const payload = await apiRequest(store, getPath('categories'), {
+      query: {
+        ...baseQuery,
+        limit: DEFAULT_LIST_PAGE_LIMIT,
+        offset,
+      },
+    });
+    const pageItems = unwrapListPayload(payload);
+    items.push(...pageItems);
+
+    if (pageItems.length < DEFAULT_LIST_PAGE_LIMIT) {
+      break;
+    }
+
+    offset += DEFAULT_LIST_PAGE_LIMIT;
+  }
+
+  return items;
+}
+
+export async function listCategories(store, filters = {}) {
+  const baseQuery = buildCategoryQuery(filters);
+
+  if (hasExplicitPagination(filters)) {
+    const query = { ...baseQuery };
+    if (filters.limit !== undefined && filters.limit !== null) {
+      query.limit = filters.limit;
+    }
+    if (filters.offset !== undefined && filters.offset !== null) {
+      query.offset = filters.offset;
+    }
+
+    const payload = await apiRequest(store, getPath('categories'), {
+      query,
+    });
+    return unwrapListPayload(payload);
+  }
+
+  return fetchAllCategoryPages(store, baseQuery);
+}

src/app/config.js

@@ -27,6 +27,7 @@ export const API_PATHS = {
   kitchens: 'kitchen/kitchens',
   items: 'kitchen/items',
   locations: 'kitchen/locations',
+  categories: 'kitchen/categories',
   changes: 'kitchen/changes',
 };
 

src/features/stock/stock-detail-page.js

@@ -8,6 +8,7 @@ import {
 } from '../../api/stock.js';
 import { formatPrintErrorMessage, printItemLabel } from '../../api/labels.js';
 import { fetchLocations } from '../../api/locations.js';
+import { listCategories } from '../../api/categories.js';
 import { getRouteContext } from '../../app/router.js';
 import { renderScannerModal } from '../shared/scanner-modal.js';
 import {
@@ -145,6 +146,21 @@ export function renderStockDetailPage() {
                   </dd>
                   <dt class="col-5">Stock type</dt>
                   <dd class="col-7" x-text="entry.stock_type || 'Stored'"></dd>
+                  <dt class="col-5">Main category</dt>
+                  <dd class="col-7" x-text="mainCategoryLabel(entry) || 'Not set'"></dd>
+                  <dt class="col-5">Categories</dt>
+                  <dd class="col-7">
+                    <template x-if="categoryLabels(entry).length">
+                      <div class="d-flex flex-wrap gap-1">
+                        <template x-for="label in categoryLabels(entry)" :key="label">
+                          <span class="badge text-bg-light border" x-text="label"></span>
+                        </template>
+                      </div>
+                    </template>
+                    <template x-if="!categoryLabels(entry).length">
+                      <span class="text-body-secondary">Uncategorized</span>
+                    </template>
+                  </dd>
                 </dl>
 
                 <div class="mt-4">
@@ -464,6 +480,7 @@ export function stockDetailPageData(store) {
     entry: null,
     stockEvents: [],
     locationPathByUuid: {},
+    categoriesById: {},
     identifierDraft: '',
     scannerManualCode: '',
     adjustment: {
@@ -484,9 +501,10 @@ export function stockDetailPageData(store) {
 
       const { params } = getRouteContext();
       await runAsyncState(this.state, async () => {
-        const [entry, locations] = await Promise.all([
+        const [entry, locations, categories] = await Promise.all([
           getStockEntry(store, params.id),
           fetchLocations(store).catch(() => ({ flat: [] })),
+          listCategories(store, { expanded: true }).catch(() => []),
         ]);
         this.entry = entry;
         this.identifierDraft = normalizeIdentifierCode(entry?.identifier_code);
@@ -495,6 +513,11 @@ export function stockDetailPageData(store) {
             .filter((location) => location.uuid_b64)
             .map((location) => [location.uuid_b64, location.pathLabel || location.name]),
         );
+        this.categoriesById = Object.fromEntries(
+          categories
+            .filter((category) => category?.id !== undefined && category?.id !== null)
+            .map((category) => [String(category.id), category]),
+        );
         this.adjustment.level = this.entry?.level || 'plenty';
       }).catch(() => {});
       this.loadStockHistory().catch(() => {});
@@ -966,6 +989,35 @@ export function stockDetailPageData(store) {
 
       return this.locationPathByUuid[locationUuid] || 'Location not resolved';
     },
+    categoryLabel(category) {
+      if (!category || typeof category !== 'object') {
+        return '';
+      }
+
+      return String(category.path || category.name || '').trim();
+    },
+    mainCategoryLabel(entry) {
+      const categoryId = entry?.category;
+      if (categoryId === null || categoryId === undefined || categoryId === '') {
+        return '';
+      }
+
+      const mapped = this.categoryLabel(this.categoriesById[String(categoryId)]);
+      if (mapped) {
+        return mapped;
+      }
+
+      return String(categoryId).trim();
+    },
+    categoryLabels(entry) {
+      const categoryIds = Array.isArray(entry?.categories) ? entry.categories : [];
+      const labels = categoryIds.map((categoryId) => {
+        const mapped = this.categoryLabel(this.categoriesById[String(categoryId)]);
+        return mapped || String(categoryId || '').trim();
+      });
+
+      return [...new Set(labels.filter(Boolean))];
+    },
     nutriScoreLabel(entry) {
       const value = entry?.nutriscore_grade;
       if (!value) {

src/features/stock/stock-list-page.js

@@ -7,6 +7,7 @@ import {
   updateStockItem,
 } from '../../api/stock.js';
 import { fetchLocations } from '../../api/locations.js';
+import { listCategories } from '../../api/categories.js';
 import { STORAGE_KEYS } from '../../app/config.js';
 import { clearStoredValue, loadStoredValue, saveStoredValue } from '../shared/storage.js';
 import { createAsyncState } from '../shared/ui-state.js';
@@ -221,13 +222,35 @@ function resolveLocationLabel(entry, locationMap) {
   return locationMap[entry.location_initial_uuid_b64] || 'Location not resolved';
 }
 
-function searchBlob(entry, locationMap) {
+function categoryLabel(category) {
+  if (!category || typeof category !== 'object') {
+    return '';
+  }
+
+  return String(category.name || category.path || '').trim();
+}
+
+function resolveMainCategoryLabel(entry, categoriesById = {}) {
+  const categoryId = entry?.category;
+  if (categoryId === null || categoryId === undefined || categoryId === '') {
+    return '';
+  }
+
+  const mapped = categoryLabel(categoriesById[String(categoryId)]);
+  if (mapped) {
+    return mapped;
+  }
+  return String(categoryId).trim();
+}
+
+function searchBlob(entry, locationMap, categoriesById = {}) {
   return [
     entry.name,
     entry.description,
     entry.level,
     entry.stock_type,
     resolveLocationLabel(entry, locationMap),
+    resolveMainCategoryLabel(entry, categoriesById),
     entry.uuid_b64,
   ]
     .filter(Boolean)
@@ -235,10 +258,10 @@ function searchBlob(entry, locationMap) {
     .toLowerCase();
 }
 
-function groupSearchBlob(group, locationMap) {
+function groupSearchBlob(group, locationMap, categoriesById = {}) {
   return [
-    searchBlob(group, locationMap),
+    searchBlob(group, locationMap, categoriesById),
-    ...(group.items || []).map((item) => searchBlob(item, locationMap)),
+    ...(group.items || []).map((item) => searchBlob(item, locationMap, categoriesById)),
   ]
     .filter(Boolean)
     .join(' ')
@@ -544,6 +567,9 @@ export function renderStockListPage() {
                         <td>
                           <div class="fw-semibold" x-text="entry.name"></div>
                           <div class="small text-body-secondary" x-text="entry.description || 'No description'"></div>
+                    <div class="small mt-1" x-show="mainCategoryLabel(entry)">
+                      <span class="badge text-bg-light border" x-text="mainCategoryBadgeLabel(entry)"></span>
+                    </div>
                           <div class="small font-monospace text-body-secondary" x-text="shortId(entry)"></div>
                           <a
                             class="small text-decoration-none fw-semibold"
@@ -623,6 +649,9 @@ export function renderStockListPage() {
                     <div>
                       <div class="fw-semibold fs-5" x-text="entry.name"></div>
                       <div class="text-body-secondary small" x-text="entry.description || 'No description'"></div>
+                      <div class="small mt-1" x-show="mainCategoryLabel(entry)">
+                        <span class="badge text-bg-light border" x-text="mainCategoryBadgeLabel(entry)"></span>
+                      </div>
                       <div class="text-body-secondary small font-monospace" x-text="shortId(entry)"></div>
                       <a
                         class="small text-decoration-none fw-semibold"
@@ -728,10 +757,16 @@ export function renderStockListPage() {
                   <div>
                     <div class="fw-semibold grouped-stock-summary-title" x-text="group.name"></div>
                     <div class="text-body-secondary small grouped-stock-summary-description" x-show="group.description" x-text="group.description"></div>
+                    <div class="small mt-1" x-show="mainCategoryLabel(group)">
+                      <span class="badge text-bg-light border" x-text="mainCategoryBadgeLabel(group)"></span>
+                    </div>
                     <div class="d-flex flex-wrap small grouped-stock-summary-meta">
                       <span><span class="fw-semibold text-body" x-text="groupItemCount(group)"></span> item(s)</span>
                       <span><span class="text-body-secondary">Latest location:</span> <span class="fw-semibold text-body" x-text="locationLabel(group)"></span></span>
-                      <span><span class="text-body-secondary">Quantity:</span> <span class="fw-semibold text-body" x-text="quantityLabel(group)"></span></span>
+                      <span>
+                        <span class="text-body-secondary" x-text="groupSummaryMetricLabel(group) + ':'"></span>
+                        <span class="fw-semibold text-body" x-text="groupSummaryMetricValue(group)"></span>
+                      </span>
                     </div>
                   </div>
                   <div class="grouped-stock-summary-status">
@@ -781,6 +816,12 @@ export function renderStockListPage() {
                                   <span x-text="locationLabel(item)"></span>
                                   <span class="grouped-stock-subline-separator" aria-hidden="true">•</span>
                                   <span x-text="shortDescription(item.description)"></span>
+                                  <template x-if="mainCategoryLabel(item)">
+                                    <span>
+                                      <span class="grouped-stock-subline-separator" aria-hidden="true">•</span>
+                                      <span class="text-body-tertiary" x-text="'Main: ' + mainCategoryLabel(item)"></span>
+                                    </span>
+                                  </template>
                                 </div>
                               </div>
                               <div class="small text-body-secondary grouped-stock-item-aux">
@@ -876,6 +917,7 @@ export function stockListPageData(store) {
     locationMap: {},
     locationDescendants: {},
     locationLineage: {},
+    categoriesById: {},
     editForms: {},
     editErrors: {},
     levelOptions: LEVEL_OPTIONS,
@@ -918,7 +960,7 @@ export function stockListPageData(store) {
         : false;
 
       if (!restoredFromRuntime) {
-        const initTasks = [this.loadLocations()];
+        const initTasks = [this.loadLocations(), this.loadCategories()];
         if (this.viewMode === 'items') {
           initTasks.push(this.loadEntries());
         } else {
@@ -937,6 +979,9 @@ export function stockListPageData(store) {
       if (!restoredFromRuntime && this.viewMode === 'grouped') {
         this.hydrateGroupedEntriesInBackground().catch(() => {});
       }
+      if (restoredFromRuntime) {
+        this.refreshLoadedViewsInBackground().catch(() => {});
+      }
       if (restoredFromRuntime && restoredContext?.focusedItemUuid) {
         this.refreshFocusedItemInBackground(restoredContext.focusedItemUuid).catch(() => {});
       }
@@ -1047,6 +1092,7 @@ export function stockListPageData(store) {
           locationMap: this.locationMap,
           locationDescendants: this.locationDescendants,
           locationLineage: this.locationLineage,
+          categoriesById: this.categoriesById,
           changeCursor: this.changeCursor,
         }),
       };
@@ -1106,6 +1152,9 @@ export function stockListPageData(store) {
       this.locationLineage = payload.locationLineage && typeof payload.locationLineage === 'object'
         ? payload.locationLineage
         : {};
+      this.categoriesById = payload.categoriesById && typeof payload.categoriesById === 'object'
+        ? payload.categoriesById
+        : {};
       this.changeCursor = payload.changeCursor || this.changeCursor;
 
       if (this.itemsLoaded) {
@@ -1267,7 +1316,7 @@ export function stockListPageData(store) {
     },
     indexEntry(entry) {
       const indexed = { ...entry };
-      indexed._searchBlob = searchBlob(indexed, this.locationMap);
+      indexed._searchBlob = searchBlob(indexed, this.locationMap, this.categoriesById);
       return indexed;
     },
     indexGroup(group) {
@@ -1278,7 +1327,7 @@ export function stockListPageData(store) {
         ...group,
         items: indexedItems,
       };
-      indexed._searchBlob = groupSearchBlob(indexed, this.locationMap);
+      indexed._searchBlob = groupSearchBlob(indexed, this.locationMap, this.categoriesById);
       return indexed;
     },
     reindexSearchData() {
@@ -1513,6 +1562,25 @@ export function stockListPageData(store) {
         this.persistRuntimeCache();
       }
     },
+    async loadCategories() {
+      if (!store.isConnected) {
+        return;
+      }
+
+      try {
+        const categories = await listCategories(store, { expanded: true });
+        this.categoriesById = Object.fromEntries(
+          categories
+            .filter((category) => category?.id !== undefined && category?.id !== null)
+            .map((category) => [String(category.id), category]),
+        );
+      } catch {
+        this.categoriesById = {};
+      } finally {
+        this.reindexSearchData();
+        this.persistRuntimeCache();
+      }
+    },
     resetGroupedVisibleLimit() {
       this.groupedVisibleLimit = this.groupedPageSize;
     },
@@ -1526,6 +1594,28 @@ export function stockListPageData(store) {
 
       return group.items.filter((item) => !isGroupedChildStub(item));
     },
+    mainCategoryLabel(entry) {
+      return resolveMainCategoryLabel(entry, this.categoriesById);
+    },
+    mainCategoryBadgeLabel(entry) {
+      return `Main category: ${this.mainCategoryLabel(entry)}`;
+    },
+    groupSummaryMetricLabel(group) {
+      if (group?.stock_type === 'measured') {
+        return 'Quantity';
+      }
+      if (group?.stock_type === 'descriptive') {
+        return 'Stock level';
+      }
+      if (group?.stock_type === 'binary') {
+        return 'Stock state';
+      }
+      return 'Stock';
+    },
+    groupSummaryMetricValue(group) {
+      // Use backend-provided grouped fields as the single source of truth.
+      return quantityLabel(group);
+    },
     hasGroupedChildStubs(group) {
       if (!Array.isArray(group?.items)) {
         return false;

tests/api/categories.test.js

@@ -0,0 +1,67 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+
+const apiRequestMock = vi.fn();
+
+vi.mock('../../src/api/client.js', () => ({
+  getPath(key) {
+    const paths = {
+      categories: 'kitchen/categories',
+    };
+    return paths[key];
+  },
+  apiRequest: (...args) => apiRequestMock(...args),
+}));
+
+const { listCategories } = await import('../../src/api/categories.js');
+
+describe('api/categories', () => {
+  beforeEach(() => {
+    apiRequestMock.mockReset();
+  });
+
+  it('forwards explicit pagination and filters', async () => {
+    apiRequestMock.mockResolvedValueOnce([]);
+
+    await listCategories(
+      { config: { database: 'db' } },
+      { searchName: 'dairy', active: true, limit: 10, offset: 20, orderBy: 'name', orderDir: 'asc' },
+    );
+
+    expect(apiRequestMock).toHaveBeenCalledWith(
+      { config: { database: 'db' } },
+      'kitchen/categories',
+      {
+        query: {
+          search_name: 'dairy',
+          active: true,
+          order_by: 'name',
+          order_dir: 'asc',
+          limit: 10,
+          offset: 20,
+        },
+      },
+    );
+  });
+
+  it('aggregates category pages by default', async () => {
+    apiRequestMock
+      .mockResolvedValueOnce(Array.from({ length: 100 }, (_, id) => ({ id: id + 1 })))
+      .mockResolvedValueOnce([{ id: 101 }]);
+
+    const response = await listCategories({ config: { database: 'db' } }, {});
+
+    expect(response).toHaveLength(101);
+    expect(apiRequestMock).toHaveBeenNthCalledWith(
+      1,
+      { config: { database: 'db' } },
+      'kitchen/categories',
+      { query: { limit: 100, offset: 0 } },
+    );
+    expect(apiRequestMock).toHaveBeenNthCalledWith(
+      2,
+      { config: { database: 'db' } },
+      'kitchen/categories',
+      { query: { limit: 100, offset: 100 } },
+    );
+  });
+});

tests/features/stock/stock-list-page-grouped.test.js

@@ -7,6 +7,7 @@ const getStockEntryMock = vi.fn();
 const updateStockItemMock = vi.fn();
 const useStockItemMock = vi.fn();
 const fetchLocationsMock = vi.fn();
+const listCategoriesMock = vi.fn();
 
 vi.mock('../../../src/api/stock.js', () => ({
   listStockEntries: (...args) => listStockEntriesMock(...args),
@@ -21,6 +22,10 @@ vi.mock('../../../src/api/locations.js', () => ({
   fetchLocations: (...args) => fetchLocationsMock(...args),
 }));
 
+vi.mock('../../../src/api/categories.js', () => ({
+  listCategories: (...args) => listCategoriesMock(...args),
+}));
+
 const { stockListPageData } = await import('../../../src/features/stock/stock-list-page.js');
 
 function createGroupedSummary() {
@@ -112,6 +117,8 @@ describe('stock list grouped-first behavior', () => {
     updateStockItemMock.mockReset();
     useStockItemMock.mockReset();
     fetchLocationsMock.mockReset();
+    listCategoriesMock.mockReset();
+    listCategoriesMock.mockResolvedValue([]);
 
     globalThis.window = createWindowMock();
     globalThis.requestAnimationFrame = (callback) => callback();
@@ -133,6 +140,7 @@ describe('stock list grouped-first behavior', () => {
     listStockEntriesMock.mockResolvedValueOnce([]);
     listKitchenChangesMock.mockResolvedValue({ since: null, nextCursor: null, changes: [] });
     fetchLocationsMock.mockResolvedValue({ flat: [], tree: [] });
+    listCategoriesMock.mockResolvedValue([]);
 
     const store = { isConnected: true, addAlert: vi.fn() };
     const data = stockListPageData(store);
@@ -357,8 +365,10 @@ describe('stock list grouped-first behavior', () => {
     await Promise.resolve();
     await Promise.resolve();
 
-    expect(listGroupedStockEntriesMock).not.toHaveBeenCalled();
+    expect(listGroupedStockEntriesMock).toHaveBeenNthCalledWith(1, store, { expanded: false });
-    expect(listStockEntriesMock).not.toHaveBeenCalled();
+    expect(listGroupedStockEntriesMock).toHaveBeenNthCalledWith(2, store, { expanded: true });
+    expect(listStockEntriesMock).toHaveBeenCalledTimes(1);
+    expect(listStockEntriesMock).toHaveBeenCalledWith(store);
     expect(fetchLocationsMock).not.toHaveBeenCalled();
     expect(getStockEntryMock).toHaveBeenCalledWith(store, 'item-100');
     expect(returnVisit.entries[0].quantity).toBe(2);