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src/automats/articleIndexAutomat.js

@@ -98,6 +98,7 @@ function scheduleRebuild() {
 function toIndexRecord(article, categoryId) {
   const eans = article.eans ?? article.eanCodes ?? article.ean ?? null;
   return {
+    ...article,
     id: article.id,
     sku: article.sku,
     name: article.name,

src/automats/articleSearchAutomat.js

@@ -1,23 +1,29 @@
 /**
  * @file articleSearchAutomat.js
- * @description In-memory article search state for the `/artikel` overview and
- * search pages, querying against the derived `articleIndexAutomat`.
+ * @description In-memory article search and pagination state for the `/artikel`
+ * overview and search pages, querying against the derived `articleIndexAutomat`.
  *
  * Upstream Triggers:
- * - UI / Search input: Components call `actions.search(query)` or `actions.reset()`.
+ * - UI / Search input / FillSpace: Components call `actions.search({ target, filter, offset, pageSize })`.
  * - Reads data from `articleIndexAutomat`: Ensures the derived index is available
- *   before filtering. The index is built from the loaded category views, so a
- *   search never issues a request of its own.
+ *   before filtering and slicing.
+ * - `categoryAutomat`: Provides category hierarchy metadata for faceted counts.
  */
 
 import { Automat } from 'react-automat';
 import articleIndexAutomat from './articleIndexAutomat';
+import categoryAutomat from './categoryAutomat';
+import { parseFilter } from '../components/article/searchFormat';
 
 /**
  * @typedef {Object} ArticleSearchResult
  * @property {Record<string,object>} categoryFacets Facet counts per category id.
  * @property {number} totalCount Number of matching records.
- * @property {Array<object>} recordset Matching article index records.
+ * @property {Array<object>} recordset Sliced matching article index records for the current page.
+ * @property {number} offset Current 0-based offset.
+ * @property {number|null} pageSize Current page size.
+ * @property {number} pageCount Total number of pages.
+ * @property {number} currentPage Current 1-based page number.
  * @property {Error|null} error Search failure, or `null`.
  */
 
@@ -25,6 +31,9 @@ import articleIndexAutomat from './articleIndexAutomat';
  * @typedef {Object} ArticleSearchState
  * @property {ArticleSearchResult} result Latest search outcome.
  * @property {string} target Active search term.
+ * @property {string} filter Active category filter string.
+ * @property {number} offset Current 0-based offset.
+ * @property {number|null} pageSize Current page size.
  * @property {boolean} loading Whether a search is in flight.
  */
 
@@ -33,6 +42,10 @@ const emptyResult = {
   categoryFacets: {},
   totalCount: 0,
   recordset: [],
+  offset: 0,
+  pageSize: null,
+  pageCount: 1,
+  currentPage: 1,
   error: null,
 };
 
@@ -40,73 +53,210 @@ const emptyResult = {
 const initialState = {
   result: emptyResult,
   target: '',
+  filter: '',
+  offset: 0,
+  pageSize: null,
   loading: false,
 };
 
 let articleSearchAutomat;
 
 /**
- * Matches one index record against a lowercased search term.
+ * Matches one index record against a search query (checks tokens in name, sku, brand, eans).
  *
  * @param {object} row Article index record.
  * @param {string} query Lowercased search term.
  * @returns {boolean} Whether the record matches.
  */
 function matches(row, query) {
-  if (String(row.name ?? '').toLowerCase().includes(query)) return true;
-  if (String(row.sku ?? '').toLowerCase().includes(query)) return true;
-  return (row.eans ?? []).some((ean) => String(ean).includes(query));
+  if (!query) return true;
+  const tokens = query.split(/\s+/).filter(Boolean);
+  if (tokens.length === 0) return true;
+  const name = String(row.name ?? '').toLowerCase();
+  const sku = String(row.sku ?? '').toLowerCase();
+  const brand = String(row.brand?.name || row.brandName || '').toLowerCase();
+  const eans = (row.eans ?? []).map((e) => String(e).toLowerCase());
+  return tokens.every(
+    (token) =>
+      name.includes(token) ||
+      sku.includes(token) ||
+      brand.includes(token) ||
+      eans.some((ean) => ean.includes(token)),
+  );
+}
+
+/**
+ * Checks whether an article belongs to at least one of the selected categories.
+ *
+ * @param {object} row Article index record.
+ * @param {Array<string>} selectedCategories Array of category ID strings.
+ * @returns {boolean} Whether the article matches.
+ */
+function matchesCategory(row, selectedCategories) {
+  if (!selectedCategories || selectedCategories.length === 0) return true;
+  if (!row.categories) return false;
+  const rowCats = String(row.categories).split(',').map((s) => s.trim());
+  return selectedCategories.some((catId) => rowCats.includes(String(catId)));
+}
+
+/**
+ * Computes facet counts for each category represented in matched articles.
+ *
+ * @param {Array<object>} matchedArticles Articles matching text query.
+ * @returns {Record<string, {count: number, name: string, parent: any}>} Category facets.
+ */
+function buildCategoryFacets(matchedArticles) {
+  const facets = {};
+  const categoriesMap = categoryAutomat.state?.categories ?? {};
+
+  for (const article of matchedArticles) {
+    if (!article.categories) continue;
+    const ids = String(article.categories).split(',').map((s) => s.trim()).filter(Boolean);
+    for (const id of ids) {
+      if (!facets[id]) {
+        const catNode = categoriesMap[id];
+        facets[id] = {
+          count: 0,
+          name: catNode?.name ?? `Kategorie ${id}`,
+          parent: catNode?.parentId ?? null,
+        };
+      }
+      facets[id].count += 1;
+    }
+  }
+
+  return facets;
 }
 
 const actions = {
   /**
-   * Runs a client-side search over the article index.
+   * Runs a client-side search over the article index with pagination.
    *
-   * The index is already derived from the cached category views, so this does
-   * not hit the network once the tree has loaded.
-   *
-   * @param {string} target Search term; an empty string returns everything.
+   * @param {string|object} targetOrParams Search term or options object.
+   * @param {object} [options] Secondary options when first argument is target string.
    * @returns {Promise<ArticleSearchResult>} Search outcome.
    */
-  async search(target) {
-    articleSearchAutomat.setState({ target, loading: true });
+  async search(targetOrParams, options = {}) {
+    const currentState = articleSearchAutomat.state;
+    const params = typeof targetOrParams === 'object' && targetOrParams !== null
+      ? targetOrParams
+      : { target: targetOrParams, ...options };
+
+    const target = params.target !== undefined ? String(params.target ?? '') : currentState.target;
+    const filter = params.filter !== undefined ? String(params.filter ?? '') : currentState.filter;
+    const pageSize = params.pageSize !== undefined ? params.pageSize : currentState.pageSize;
+    const offset = params.offset !== undefined ? Math.max(0, Number(params.offset) || 0) : currentState.offset;
+
+    articleSearchAutomat.setState({ target, filter, offset, pageSize, loading: true });
     try {
       const articles = await articleIndexAutomat.actions.ensureLoaded();
-      const query = String(target ?? '').trim().toLowerCase();
-      const recordset = query
+      const query = target.trim().toLowerCase();
+
+      // Filter by text query across all tokens
+      const textMatches = query
         ? articles.filter((row) => matches(row, query))
         : articles;
+
+      // Build facets for all text matches (before category filtering)
+      const categoryFacets = buildCategoryFacets(textMatches);
+
+      // Apply category filter if set
+      const selectedCategories = parseFilter(filter);
+      const filteredArticles = selectedCategories.length > 0
+        ? textMatches.filter((row) => matchesCategory(row, selectedCategories))
+        : textMatches;
+
+      const totalCount = filteredArticles.length;
+      const safePageSize = pageSize != null && pageSize > 0 ? pageSize : null;
+      const pageCount = safePageSize ? Math.max(1, Math.ceil(totalCount / safePageSize)) : 1;
+      const currentPage = safePageSize ? Math.floor(offset / safePageSize) + 1 : 1;
+      const recordset = safePageSize
+        ? filteredArticles.slice(offset, offset + safePageSize)
+        : filteredArticles;
+
       const result = {
-        categoryFacets: {},
-        totalCount: recordset.length,
+        categoryFacets,
+        totalCount,
         recordset,
+        offset,
+        pageSize: safePageSize,
+        pageCount,
+        currentPage,
         error: null,
       };
+
       articleSearchAutomat.setState({ result, loading: false });
       return result;
     } catch (error) {
-      const result = { ...emptyResult, error };
+      const result = {
+        ...emptyResult,
+        pageSize,
+        offset,
+        error,
+      };
       articleSearchAutomat.setState({ result, loading: false });
       throw error;
     }
   },
 
-  /** Reset the result set. */
+  /**
+   * Updates the page size and re-derives the result set.
+   *
+   * @param {number} pageSize Number of articles per page.
+   * @returns {Promise<ArticleSearchResult>}
+   */
+  setPageSize(pageSize) {
+    const { target, filter, offset } = articleSearchAutomat.state;
+    return actions.search({ target, filter, offset, pageSize });
+  },
+
+  /**
+   * Sets page number (1-based) and re-derives the result set.
+   *
+   * @param {number} page 1-based page number.
+   * @returns {Promise<ArticleSearchResult>}
+   */
+  setPage(page) {
+    const { target, filter, pageSize } = articleSearchAutomat.state;
+    const safeSize = pageSize ?? 1;
+    const offset = Math.max(0, (page - 1) * safeSize);
+    return actions.search({ target, filter, offset, pageSize });
+  },
+
+  /**
+   * Sets 0-based offset and re-derives the result set.
+   *
+   * @param {number} offset 0-based record offset.
+   * @returns {Promise<ArticleSearchResult>}
+   */
+  setOffset(offset) {
+    const { target, filter, pageSize } = articleSearchAutomat.state;
+    return actions.search({ target, filter, offset, pageSize });
+  },
+
+  /** Reset the search state. */
   reset() {
     articleSearchAutomat.setState(initialState);
   },
 };
 
 /**
- * Article search state for the `/artikel` overview page.
+ * Article search and pagination state for the `/artikel` overview page.
  *
- * Replaces `StorageManager.doSearch()`; components subscribe to `result`
- * instead of receiving a callback.
+ * Components subscribe to `result` to receive paginated records, facets,
+ * page counts, and total counts.
  *
  * @type {Automat<ArticleSearchState>}
  */
 articleSearchAutomat = new Automat(initialState, actions, { name: 'articleSearch' });
 
+articleIndexAutomat.subscribe(() => {
+  const { target, filter, offset, pageSize, loading } = articleSearchAutomat.state;
+  if (pageSize != null && !loading && articleIndexAutomat.state.status === 'ready') {
+    void actions.search({ target, filter, offset, pageSize }).catch(() => {});
+  }
+});
+
 /**
  * Selects the latest search result.
  *

src/main.jsx

@@ -37,6 +37,19 @@ if (import.meta.env.DEV) {
   void clearDevServiceWorker();
 }
 
+// PWA auto-update: reload the page as soon as a new build's service worker
+// takes control. The virtual module only exists in production builds (the
+// plugin is registered for `build` only), hence the dynamic import.
+if (import.meta.env.PROD && 'serviceWorker' in navigator) {
+  import('virtual:pwa-register')
+    .then(({ registerSW }) => {
+      registerSW({ immediate: true });
+    })
+    .catch(() => {
+      // No SW in this build — app still works, just without offline support.
+    });
+}
+
 createRoot(document.getElementById('root')).render(
   <ThemeProvider theme={getActiveTheme()}>
     <CssBaseline />

src/routes/artikel.jsx

@@ -32,9 +32,6 @@ import { artikelDetailPath } from '../components/article/articleRoute';
 import withSearchParams from '../components/article/withSearchParams';
 import { setLastArticleSku } from '../automats';
 import { BrandLabel } from '../components/brand';
-import {
-  BLUE_BG,
-} from '../colors';
 
 const resultRowSx = {
   alignItems: 'center',
@@ -50,18 +47,31 @@ const resultRowSx = {
 
 function ResultRowMeasureSample() {
   return (
-    <ListItemButton tabIndex={-1} divider sx={resultRowSx}>
+    <ListItemButton
+      tabIndex={-1}
+      divider
+      disabled
+      sx={{
+        ...resultRowSx,
+        pointerEvents: 'none',
+        userSelect: 'none',
+        opacity: 0.2,
+      }}
+    >
       <ListItemText
-        primary="Measure"
+        primary={'\u00A0'}
         secondary={
-          <Typography component="span" variant="body2" color="text.secondary" noWrap>
-            SKU · Bestand 0 · Verfügbar 0 · Kategorie
+          <Typography component="span" variant="body2" sx={{ visibility: 'hidden' }} noWrap>
+            &nbsp;
           </Typography>
         }
         slotProps={{ primary: { fontWeight: 500, noWrap: true } }}
       />
-      <Typography variant="body2" sx={{ fontWeight: 600, flexShrink: 0, ml: 2 }}>
-        0,00 €
+      <Typography
+        variant="body2"
+        sx={{ fontWeight: 600, flexShrink: 0, ml: 2, visibility: 'hidden' }}
+      >
+        &nbsp;
       </Typography>
     </ListItemButton>
   );
@@ -75,87 +85,35 @@ function initialSearchState(searchParams) {
       ? query.target
       : (stored?.target?.trim().length >= 3 ? stored.target : query.target);
 
+  const automatResult = articleSearchAutomat.state.result;
+
   return {
     input,
-    error: null,
-    categoryFacets: null,
-    totalCount: null,
-    recordset: null,
-    pageSize: null,
+    error: automatResult.error,
+    categoryFacets: automatResult.categoryFacets,
+    totalCount: automatResult.totalCount,
+    recordset: automatResult.recordset,
+    pageSize: automatResult.pageSize,
+    pageCount: automatResult.pageCount,
+    currentPage: automatResult.currentPage,
+    offset: automatResult.offset,
   };
 }
 
 class ArtikelSearchPage extends Component {
   state = initialSearchState(this.props.searchParams);
-  listSlotRef = { current: null };
-  rowMeasureRef = { current: null };
   paginationRef = createRef();
 
-  setListSlotRef = (node) => {
-    if (this.listSlotRef.current === node) return;
-    this.listSlotRef.current = node;
-    if (!node) return;
-    this.updatePageSize();
-  };
-
-  setRowMeasureRef = (node) => {
-    if (this.rowMeasureRef.current === node) return;
-    this.rowMeasureRef.current = node;
-    if (!node) return;
-    this.updatePageSize();
-  };
-
-  measureRowHeight = () => {
-    // Always use the sample — real rows used to report a different height after paint
-    // (wrapped text), which made resize "fix" a wrong first measure.
-    const sample = this.rowMeasureRef.current;
-    if (!sample) return { height: 0, source: 'none' };
-    return {
-      height: sample.getBoundingClientRect().height,
-      source: 'sample',
-    };
-  };
-
-  updatePageSize = ({ fromResize = false } = {}) => {
-    const slot = this.listSlotRef.current;
-    if (!slot) return;
-
-    // After the first measure, ignore layout churn from painting results.
-    // Only window resize may change pageSize and refetch.
-    if (this.state.pageSize != null && !fromResize) return;
-
-    const slotTop = slot.getBoundingClientRect().top;
-    const available = window.innerHeight - slotTop;
-    const { height: rowHeight, source: rowSource } = this.measureRowHeight();
-    if (available < 1 || rowHeight < 1) return;
-
-    // Outlined Paper around the list is 1px top + 1px bottom — not in row height.
-    const listChrome = 2;
-    const next = Math.max(1, Math.floor((available - listChrome) / rowHeight));
-
-    console.log('[pageSize] measure', {
-      fromResize,
-      prevPageSize: this.state.pageSize,
-      next,
-      available,
-      rowHeight,
-      rowSource,
-      listChrome,
-      slotTop,
-      realRowHeight:
-        slot.querySelector('[data-result-row]')?.getBoundingClientRect().height ?? null,
-    });
-
-    if (next === this.state.pageSize) return;
-
-    this.setState({ pageSize: next }, () => {
-      const target = this.props.searchParams.get('target') ?? '';
-      if (target) this.fetchResults();
-    });
-  };
-
-  handleWindowResize = () => {
-    this.updatePageSize({ fromResize: true });
+  handleMeasurement = (count) => {
+    if (!count || count === this.state.pageSize) return;
+    this.setState({ pageSize: count });
+    const { target, filter, offset } = queryFromParams(this.props.searchParams);
+    void articleSearchAutomat.actions.search({
+      target: target || this.state.input,
+      filter,
+      offset,
+      pageSize: count,
+    }).catch(() => {});
   };
 
   persistQuery = () => {
@@ -170,19 +128,14 @@ class ArtikelSearchPage extends Component {
 
   componentDidMount() {
     document.addEventListener('mouseup', preserveSearchFocus, true);
-    window.addEventListener('resize', this.handleWindowResize);
     setLastArticleSku(null);
 
     // Push search results into local component state.
     this.unsubSearch = articleSearchAutomat.subscribe(this, (state) => state.result);
-
-    // Kick off initial search (empty input = show all products).
-    void articleSearchAutomat.actions.search(this.state.input).catch(() => {});
   }
 
   componentWillUnmount() {
     document.removeEventListener('mouseup', preserveSearchFocus, true);
-    window.removeEventListener('resize', this.handleWindowResize);
     this.unsubSearch?.();
     this.unsubSearch = null;
     this.persistQuery();
@@ -221,7 +174,16 @@ class ArtikelSearchPage extends Component {
   handleInputChange = (event) => {
     const value = event.target.value;
     this.setState({ input: value });
-    void articleSearchAutomat.actions.search(value).catch(() => {});
+    const { filter } = queryFromParams(this.props.searchParams);
+    const { pageSize } = this.state;
+    if (pageSize != null) {
+      void articleSearchAutomat.actions.search({
+        target: value,
+        filter,
+        offset: 0,
+        pageSize,
+      }).catch(() => {});
+    }
   };
 
   fetchResults = () => {
@@ -232,13 +194,36 @@ class ArtikelSearchPage extends Component {
 
     writeArtikelQuery({ target, filter, offset });
 
-    void articleSearchAutomat.actions.search(target.trim()).catch(() => {});
+    void articleSearchAutomat.actions.search({
+      target: target.trim(),
+      filter,
+      offset,
+      pageSize,
+    }).catch(() => {});
+  };
+
+  handlePageChange = (_e, page) => {
+    const { pageSize } = this.state;
+    const safePageSize = pageSize ?? 1;
+    const nextOffset = (page - 1) * safePageSize;
+    const filterParam = this.props.searchParams.get('filter') ?? '';
+    this.updateParams(this.state.input, filterParam, nextOffset);
   };
 
   render() {
-    const { input, error, categoryFacets, totalCount, recordset, pageSize } = this.state;
+    const {
+      input,
+      error,
+      categoryFacets,
+      totalCount,
+      recordset,
+      pageSize,
+      pageCount,
+      currentPage,
+      offset: stateOffset,
+    } = this.state;
     const filterParam = this.props.searchParams.get('filter') ?? '';
-    const offset = Math.max(0, Number(this.props.searchParams.get('offset')) || 0);
+    const offset = Math.max(0, Number(this.props.searchParams.get('offset')) || stateOffset || 0);
     const categories = parseFilter(filterParam);
     // Drive UI from input so hint vs results switch in one paint (URL lags one tick).
     const searchActive = input.trim().length > 0 || (recordset ?? []).length > 0;
@@ -256,16 +241,9 @@ class ArtikelSearchPage extends Component {
         .sort((a, b) => Number(a.id) - Number(b.id))
       : [];
 
-    const safePageSize = pageSize ?? 1;
-    const pageCount = Math.max(1, Math.ceil((totalCount ?? 0) / safePageSize));
-    const currentPage = Math.floor(offset / safePageSize) + 1;
     const showPagination =
       rows.length > 0 && pageSize != null && totalCount != null && totalCount > pageSize;
 
-    const handlePageChange = (_e, page) => {
-      this.updateParams(input, filterParam, (page - 1) * safePageSize);
-    };
-
     return (
       <>
         <Box sx={{ mb: 3, maxWidth: 720 }}>
@@ -340,16 +318,6 @@ class ArtikelSearchPage extends Component {
             )}
 
             <Box sx={{ flexGrow: 1, minWidth: 0, mb: -4 }}>
-              {/* Same column width as the list; invisible, zero layout footprint. */}
-              <Box aria-hidden sx={{ height: 0, overflow: 'hidden', width: '100%' }}>
-                <Box
-                  ref={this.setRowMeasureRef}
-                  sx={{ visibility: 'hidden', pointerEvents: 'none' }}
-                >
-                  <ResultRowMeasureSample />
-                </Box>
-              </Box>
-
               {searchActive && !error && totalCount === 0 && (
                 <Typography color="text.secondary">Keine Artikel gefunden.</Typography>
               )}
@@ -363,29 +331,17 @@ class ArtikelSearchPage extends Component {
                   pageSize={pageSize ?? 1}
                   pageCount={showPagination ? pageCount : 5}
                   currentPage={showPagination ? currentPage : 1}
-                  onPageChange={handlePageChange}
+                  onPageChange={this.handlePageChange}
                 />
               </Box>
 
               <FillSpace
                 aboveRef={this.paginationRef}
-                debug
+                onMeasurement={this.handleMeasurement}
                 sx={{ overflow: 'auto' }}
-                // Temporary dummy unit so the repeating fill is visible.
-                measureElement={
-                  <Box
-                    sx={{
-                      bgcolor: BLUE_BG,
-                      p: 2,
-                      borderRadius: 1,
-                      textAlign: 'center',
-                    }}
-                  >
-                    <Typography variant="body2">Einheit</Typography>
-                  </Box>
-                }
+                measureElement={<ResultRowMeasureSample />}
               >
-                <Box ref={this.setListSlotRef}>
+                <Box>
                   {rows.length > 0 && (
                     <List component={Paper} variant="outlined" disablePadding>
                       {rows.map((row, index) => (

vite.config.js

@@ -289,8 +289,13 @@ export default defineConfig(({ command }) => ({
     ...(command === 'build'
       ? [
         VitePWA({
+          // autoUpdate: the SW calls clientsClaim()/skipWaiting() itself, so a
+          // new build takes over every open tab on its own.
           registerType: 'autoUpdate',
-          injectRegister: 'auto',
+          // Registration is done explicitly in src/main.jsx via
+          // `virtual:pwa-register` with `immediate: true`; that is what makes
+          // the *page* reload (a bare injected script only swaps the SW).
+          injectRegister: false,
           manifest: {
             id: '/',
             name: 'Dashfront',
@@ -320,6 +325,13 @@ export default defineConfig(({ command }) => ({
             ],
           },
           workbox: {
+            // NOTE: vite-plugin-pwa only auto-sets these two when
+            // injectRegister === 'auto'. Because we register manually in
+            // src/main.jsx (injectRegister: false), they must be explicit —
+            // otherwise a new SW waits forever behind the old one and no tab
+            // is ever claimed.
+            skipWaiting: true,
+            clientsClaim: true,
             globPatterns: ['**/*.{js,css,html,ico,png,svg,webmanifest,woff2}'],
             globIgnores: ['**/*.wasm'],
             navigateFallback: 'index.html',
@@ -327,7 +339,19 @@ export default defineConfig(({ command }) => ({
           },
         }),
       ]
-      : []),
+      : [
+        {
+          name: 'virtual-pwa-register-stub',
+          resolveId(id) {
+            if (id === 'virtual:pwa-register') return '\0virtual:pwa-register';
+          },
+          load(id) {
+            if (id === '\0virtual:pwa-register') {
+              return 'export function registerSW() { return () => {}; }';
+            }
+          },
+        },
+      ]),
   ],
   server: sharedServer,
   preview: sharedServer,