u

src/automats/chatAutomat.js

@@ -60,7 +60,7 @@ import authAutomat from './authAutomat';
 
 /** Selectable model presets; the first entry is the default for new conversations. */
 export const PRESET_MODELS = [
-  { value: 'stealth/space-bunny-alpha', label: 'Space Bunny Alpha' },
+  { value: 'openai/gpt-6-luna', label: 'GPT-6 Luna (Standard)' },
 ];
 const DEFAULT_MODEL = PRESET_MODELS[0].value;
 

src/components/chat/ChatDrawer.jsx

@@ -4,6 +4,7 @@ import Box from '@mui/material/Box';
 import Typography from '@mui/material/Typography';
 import IconButton from '@mui/material/IconButton';
 import Button from '@mui/material/Button';
+import InputBase from '@mui/material/InputBase';
 import TextInput from '../TextInput';
 import MenuItem from '@mui/material/MenuItem';
 import Select from '@mui/material/Select';
@@ -18,8 +19,15 @@ import DeleteOutlineRoundedIcon from '@mui/icons-material/DeleteOutlineRounded';
 
 import Tooltip from '@mui/material/Tooltip';
 import Badge from '@mui/material/Badge';
+import Divider from '@mui/material/Divider';
 import AttachFileRoundedIcon from '@mui/icons-material/AttachFileRounded';
+import TuneRoundedIcon from '@mui/icons-material/TuneRounded';
+import ElderlyRoundedIcon from '@mui/icons-material/ElderlyRounded';
+import DirectionsWalkRoundedIcon from '@mui/icons-material/DirectionsWalkRounded';
+import DirectionsRunRoundedIcon from '@mui/icons-material/DirectionsRunRounded';
+import PsychologyRoundedIcon from '@mui/icons-material/PsychologyRounded';
 
+import { setting as settingApi } from '../../api';
 import chatAutomat, { selectPendingAskUser } from '../../automats/chatAutomat';
 import userSettingsAutomat from '../../automats/userSettingsAutomat';
 import ChatFlowList from './ChatFlowList';
@@ -62,6 +70,10 @@ export default class ChatDrawer extends PureComponent {
       attachmentError: null,
       drawerWidth: settings?.chatDrawerWidth || DEFAULT_DRAWER_WIDTH,
       isResizing: false,
+      showSettingsBar: false,
+      modelslugflag: 'floor',
+      modelreasoning: 'medium',
+      modelslug: 'openai/gpt-6-luna',
     };
     this.inputRef = React.createRef();
     this.fileInputRef = React.createRef();
@@ -79,6 +91,7 @@ export default class ChatDrawer extends PureComponent {
     if (this.state.isOpen) {
       this.focusInput(150);
     }
+    void this.loadModelSettings();
     this.unsub = chatAutomat.subscribe(this, (state) => {
       const wasOpen = this.state.isOpen;
       const willOpen = state.isOpen;
@@ -338,6 +351,71 @@ export default class ChatDrawer extends PureComponent {
     }
   };
 
+  loadModelSettings = async () => {
+    try {
+      const data = await settingApi.list();
+      const settings = data?.settings || [];
+      const flagSetting = settings.find((s) => s.key === 'modelslugflag');
+      const reasoningSetting = settings.find((s) => s.key === 'modelreasoning');
+      const slugSetting = settings.find((s) => s.key === 'modelslug');
+      this.setState({
+        modelslugflag: flagSetting?.value ?? 'floor',
+        modelreasoning: reasoningSetting?.value ?? 'medium',
+        modelslug: slugSetting?.value ?? 'openai/gpt-6-luna',
+      });
+    } catch (err) {
+      console.error('[ChatDrawer] Failed to load model settings:', err);
+    }
+  };
+
+  handleToggleSettingsBar = () => {
+    this.setState((prev) => ({ showSettingsBar: !prev.showSettingsBar }));
+  };
+
+  handleSetFlag = async (nextFlag) => {
+    if (this.state.modelslugflag === nextFlag) return;
+    const current = this.state.modelslugflag;
+    this.setState({ modelslugflag: nextFlag });
+    try {
+      await settingApi.upsert('modelslugflag', { value: nextFlag });
+    } catch (err) {
+      console.error('[ChatDrawer] Failed to save modelslugflag:', err);
+      this.setState({ modelslugflag: current });
+    }
+  };
+
+  handleSetReasoning = async (nextReasoning) => {
+    if (this.state.modelreasoning === nextReasoning) return;
+    const current = this.state.modelreasoning;
+    this.setState({ modelreasoning: nextReasoning });
+    try {
+      await settingApi.upsert('modelreasoning', { value: nextReasoning });
+    } catch (err) {
+      console.error('[ChatDrawer] Failed to save modelreasoning:', err);
+      this.setState({ modelreasoning: current });
+    }
+  };
+
+  handleModelslugChange = (e) => {
+    this.setState({ modelslug: e.target.value });
+  };
+
+  handleModelslugBlur = async () => {
+    const { modelslug } = this.state;
+    const trimmed = (modelslug || '').trim();
+    try {
+      await settingApi.upsert('modelslug', { value: trimmed });
+    } catch (err) {
+      console.error('[ChatDrawer] Failed to save modelslug:', err);
+    }
+  };
+
+  handleModelslugKeyDown = (e) => {
+    if (e.key === 'Enter') {
+      e.target.blur();
+    }
+  };
+
   getPendingAskUser = () => selectPendingAskUser(this.state);
 
   renderHeader() {
@@ -345,9 +423,12 @@ export default class ChatDrawer extends PureComponent {
       conversations,
       selectedConversationId,
       loadingConversations,
+      showSettingsBar,
+      modelslugflag,
+      modelreasoning,
+      modelslug,
     } = this.state;
 
-
     return (
       <Box
         sx={{
@@ -360,15 +441,261 @@ export default class ChatDrawer extends PureComponent {
           gap: 1.5,
         }}
       >
-        <Box sx={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between' }}>
+        <Box sx={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', minHeight: 34 }}>
+          {showSettingsBar ? (
+            /* Settings Bar Mode: Title goes away and reveals toggles */
+            <Box sx={{ display: 'flex', alignItems: 'center', gap: 0.75, flex: 1, minWidth: 0, overflow: 'hidden' }}>
+              <IconButton
+                size="small"
+                onClick={this.handleToggleSettingsBar}
+                aria-label="Einstellungen schließen"
+                sx={{
+                  p: 0.5,
+                  color: 'primary.main',
+                  bgcolor: 'action.selected',
+                  flexShrink: 0,
+                }}
+              >
+                <TuneRoundedIcon sx={{ fontSize: 18 }} />
+              </IconButton>
+
+              {/* Group 1: Speed (floor, walk/standard "", run/nitro) */}
+              <Box
+                sx={{
+                  display: 'inline-flex',
+                  alignItems: 'center',
+                  gap: 0.3,
+                  bgcolor: (theme) => (theme.palette.mode === 'dark' ? 'rgba(255,255,255,0.06)' : 'rgba(0,0,0,0.05)'),
+                  p: 0.3,
+                  borderRadius: 2,
+                  flexShrink: 0,
+                }}
+              >
+                <IconButton
+                  size="small"
+                  onClick={() => this.handleSetFlag('floor')}
+                  aria-label="Floor"
+                  sx={{
+                    p: 0.3,
+                    width: 26,
+                    height: 26,
+                    borderRadius: 1.5,
+                    bgcolor: modelslugflag === 'floor' ? 'primary.main' : 'transparent',
+                    color: modelslugflag === 'floor' ? 'primary.contrastText' : 'text.secondary',
+                    '&:hover': {
+                      bgcolor: modelslugflag === 'floor' ? 'primary.dark' : 'action.selected',
+                    },
+                  }}
+                >
+                  <ElderlyRoundedIcon sx={{ fontSize: 17 }} />
+                </IconButton>
+
+                <IconButton
+                  size="small"
+                  onClick={() => this.handleSetFlag('')}
+                  aria-label="Normal"
+                  sx={{
+                    p: 0.3,
+                    width: 26,
+                    height: 26,
+                    borderRadius: 1.5,
+                    bgcolor: modelslugflag === '' ? 'primary.main' : 'transparent',
+                    color: modelslugflag === '' ? 'primary.contrastText' : 'text.secondary',
+                    '&:hover': {
+                      bgcolor: modelslugflag === '' ? 'primary.dark' : 'action.selected',
+                    },
+                  }}
+                >
+                  <DirectionsWalkRoundedIcon sx={{ fontSize: 17 }} />
+                </IconButton>
+
+                <IconButton
+                  size="small"
+                  onClick={() => this.handleSetFlag('nitro')}
+                  aria-label="Nitro"
+                  sx={{
+                    p: 0.3,
+                    width: 26,
+                    height: 26,
+                    borderRadius: 1.5,
+                    bgcolor: modelslugflag === 'nitro' ? 'primary.main' : 'transparent',
+                    color: modelslugflag === 'nitro' ? 'primary.contrastText' : 'text.secondary',
+                    '&:hover': {
+                      bgcolor: modelslugflag === 'nitro' ? 'primary.dark' : 'action.selected',
+                    },
+                  }}
+                >
+                  <DirectionsRunRoundedIcon sx={{ fontSize: 17 }} />
+                </IconButton>
+              </Box>
+
+              <Divider orientation="vertical" flexItem sx={{ mx: 0.3, my: 0.5 }} />
+
+              {/* Group 2: Reasoning (none, low, medium, max) */}
+              <Box
+                sx={{
+                  display: 'inline-flex',
+                  alignItems: 'center',
+                  gap: 0.3,
+                  bgcolor: (theme) => (theme.palette.mode === 'dark' ? 'rgba(255,255,255,0.06)' : 'rgba(0,0,0,0.05)'),
+                  p: 0.3,
+                  borderRadius: 2,
+                  flexShrink: 0,
+                }}
+              >
+                {/* none toggle (crossed out brain) */}
+                <IconButton
+                  size="small"
+                  onClick={() => this.handleSetReasoning('none')}
+                  aria-label="Reasoning None"
+                  sx={{
+                    p: 0.3,
+                    width: 26,
+                    height: 26,
+                    borderRadius: 1.5,
+                    bgcolor: modelreasoning === 'none' ? 'primary.main' : 'transparent',
+                    color: modelreasoning === 'none' ? 'primary.contrastText' : 'text.secondary',
+                    '&:hover': {
+                      bgcolor: modelreasoning === 'none' ? 'primary.dark' : 'action.selected',
+                    },
+                  }}
+                >
+                  <Box sx={{ position: 'relative', display: 'inline-flex', alignItems: 'center', justifyContent: 'center' }}>
+                    <PsychologyRoundedIcon sx={{ fontSize: 16 }} />
+                    <Box
+                      sx={{
+                        position: 'absolute',
+                        width: '125%',
+                        height: '1.5px',
+                        bgcolor: modelreasoning === 'none' ? 'primary.contrastText' : 'error.main',
+                        transform: 'rotate(-45deg)',
+                        borderRadius: 1,
+                      }}
+                    />
+                  </Box>
+                </IconButton>
+
+                {/* low toggle (smallest brain) */}
+                <IconButton
+                  size="small"
+                  onClick={() => this.handleSetReasoning('low')}
+                  aria-label="Reasoning Low"
+                  sx={{
+                    p: 0.3,
+                    width: 26,
+                    height: 26,
+                    borderRadius: 1.5,
+                    bgcolor: modelreasoning === 'low' ? 'primary.main' : 'transparent',
+                    color: modelreasoning === 'low' ? 'primary.contrastText' : 'text.secondary',
+                    '&:hover': {
+                      bgcolor: modelreasoning === 'low' ? 'primary.dark' : 'action.selected',
+                    },
+                  }}
+                >
+                  <PsychologyRoundedIcon sx={{ fontSize: 13 }} />
+                </IconButton>
+
+                {/* medium toggle (medium brain) */}
+                <IconButton
+                  size="small"
+                  onClick={() => this.handleSetReasoning('medium')}
+                  aria-label="Reasoning Medium"
+                  sx={{
+                    p: 0.3,
+                    width: 26,
+                    height: 26,
+                    borderRadius: 1.5,
+                    bgcolor: modelreasoning === 'medium' ? 'primary.main' : 'transparent',
+                    color: modelreasoning === 'medium' ? 'primary.contrastText' : 'text.secondary',
+                    '&:hover': {
+                      bgcolor: modelreasoning === 'medium' ? 'primary.dark' : 'action.selected',
+                    },
+                  }}
+                >
+                  <PsychologyRoundedIcon sx={{ fontSize: 17 }} />
+                </IconButton>
+
+                {/* max toggle (big brain) */}
+                <IconButton
+                  size="small"
+                  onClick={() => this.handleSetReasoning('high')}
+                  aria-label="Reasoning Max"
+                  sx={{
+                    p: 0.3,
+                    width: 26,
+                    height: 26,
+                    borderRadius: 1.5,
+                    bgcolor: modelreasoning === 'high' ? 'primary.main' : 'transparent',
+                    color: modelreasoning === 'high' ? 'primary.contrastText' : 'text.secondary',
+                    '&:hover': {
+                      bgcolor: modelreasoning === 'high' ? 'primary.dark' : 'action.selected',
+                    },
+                  }}
+                >
+                  <PsychologyRoundedIcon sx={{ fontSize: 22 }} />
+                </IconButton>
+              </Box>
+
+              <Divider orientation="vertical" flexItem sx={{ mx: 0.3, my: 0.5 }} />
+
+              {/* modelslug input */}
+              <InputBase
+                value={modelslug || ''}
+                onChange={this.handleModelslugChange}
+                onBlur={this.handleModelslugBlur}
+                onKeyDown={this.handleModelslugKeyDown}
+                placeholder="Modellslug"
+                inputProps={{
+                  spellCheck: false,
+                  autoCorrect: 'off',
+                  autoCapitalize: 'off',
+                  'aria-label': 'Modellslug',
+                }}
+                sx={{
+                  flex: 1,
+                  minWidth: 80,
+                  fontSize: '0.78rem',
+                  fontFamily: 'monospace',
+                  px: 0.8,
+                  py: 0.2,
+                  bgcolor: (theme) => (theme.palette.mode === 'dark' ? 'rgba(255,255,255,0.06)' : 'rgba(0,0,0,0.05)'),
+                  borderRadius: 1.5,
+                  border: '1px solid transparent',
+                  '&:focus-within': {
+                    borderColor: 'primary.main',
+                    bgcolor: (theme) => (theme.palette.mode === 'dark' ? 'rgba(255,255,255,0.1)' : '#fff'),
+                  },
+                  '& input': {
+                    p: 0,
+                    overflow: 'hidden',
+                    textOverflow: 'ellipsis',
+                  },
+                }}
+              />
+            </Box>
+          ) : (
+            /* Normal Mode: settings icon on the left end, title visible */
             <Box sx={{ display: 'flex', alignItems: 'center', gap: 1 }}>
-            <AutoAwesomeRoundedIcon sx={{ fontSize: 22, color: 'primary.main' }} />
+              <IconButton
+                size="small"
+                onClick={this.handleToggleSettingsBar}
+                aria-label="Modell-Einstellungen"
+                sx={{
+                  p: 0.5,
+                  color: 'text.secondary',
+                  '&:hover': { color: 'primary.main', bgcolor: 'action.hover' },
+                }}
+              >
+                <TuneRoundedIcon sx={{ fontSize: 18 }} />
+              </IconButton>
+              <AutoAwesomeRoundedIcon sx={{ fontSize: 20, color: 'primary.main' }} />
               <Typography variant="subtitle1" fontWeight={700}>
                 KI-Assistent
               </Typography>
             </Box>
+          )}
 
-          <IconButton size="small" onClick={this.handleClose} aria-label="Chat schließen">
+          <IconButton size="small" onClick={this.handleClose} aria-label="Chat schließen" sx={{ ml: 1, flexShrink: 0 }}>
             <CloseRoundedIcon fontSize="small" />
           </IconButton>
         </Box>

src/components/settings/SettingsKeysPanel.jsx

@@ -3,6 +3,7 @@ import Alert from '@mui/material/Alert';
 import Box from '@mui/material/Box';
 import CircularProgress from '@mui/material/CircularProgress';
 import IconButton from '@mui/material/IconButton';
+import MenuItem from '@mui/material/MenuItem';
 import Stack from '@mui/material/Stack';
 import Table from '@mui/material/Table';
 import TableBody from '@mui/material/TableBody';
@@ -28,7 +29,7 @@ const SETTABLE_KEYS = [
   'keys.tavily',
   'keys.openrouter',
   'keys.serper',
-  'default-model',
+  'modelslugimage',
   'systemprompt-prefix',
   'systemprompt-suffix',
 ];
@@ -38,11 +39,17 @@ const KEY_LABELS = {
   'keys.tavily': 'Tavily API-Key',
   'keys.openrouter': 'OpenRouter API-Key',
   'keys.serper': 'Serper API-Key',
-  'default-model': 'Modellslug',
+  'modelslugimage': 'Modellslug Bild',
   'systemprompt-prefix': 'Prä Prompt',
   'systemprompt-suffix': 'Post Prompt',
 };
 
+export const DEFAULT_SETTINGS = {
+  modelslugimage: 'meta/muse-image',
+};
+
+const ENUM_OPTIONS = {};
+
 const MULTILINE_KEYS = new Set([
   'systemprompt-prefix',
   'systemprompt-suffix',
@@ -80,12 +87,17 @@ export default class SettingsKeysPanel extends Component {
     try {
       const data = await settingApi.list();
       requireObject(data, 'GET /api/company/setting');
-      const settings = requireArray(data.settings, 'settings');
+      const fetched = requireArray(data.settings, 'settings');
+      const byKey = new Map(fetched.map((s) => [s.key, s]));
+      const settings = SETTABLE_KEYS.map((key) => {
+        if (byKey.has(key)) return byKey.get(key);
+        return { key, value: DEFAULT_SETTINGS[key] ?? null };
+      });
       const drafts = Object.fromEntries(
         settings.map((s) => [
           s.key,
           {
-            value: s.value ?? '',
+            value: s.value ?? (DEFAULT_SETTINGS[s.key] ?? ''),
             busy: false,
             saveError: null,
           },
@@ -117,14 +129,8 @@ export default class SettingsKeysPanel extends Component {
     const row = this.state.settings.find((s) => s.key === key);
     if (!row) return;
 
-    const body = {};
+    const valToSave = draft.value !== '' ? draft.value : (DEFAULT_SETTINGS[key] ?? '');
-    if (draft.value !== (row.value ?? '')) {
+    const body = { value: valToSave };
-      body.value = draft.value;
-    }
-
-    if (Object.keys(body).length === 0) {
-      return;
-    }
 
     this.setState((prev) => ({
       drafts: {
@@ -146,7 +152,7 @@ export default class SettingsKeysPanel extends Component {
         drafts: {
           ...this.state.drafts,
           [key]: {
-            value: updated.value ?? '',
+            value: updated.value ?? valToSave,
             busy: false,
             saveError: null,
           },
@@ -198,6 +204,7 @@ export default class SettingsKeysPanel extends Component {
               const draft = row ? drafts[row.key] : null;
               if (!row || !draft) return null;
               const isMultiline = MULTILINE_KEYS.has(row.key);
+              const enumOpts = ENUM_OPTIONS[row.key];
               return (
                 <TableRow key={row.key} hover>
                   <TableCell
@@ -211,12 +218,35 @@ export default class SettingsKeysPanel extends Component {
                     <Typography variant="body2">{keyLabel(row.key)}</Typography>
                   </TableCell>
                   <TableCell sx={{ verticalAlign: 'top' }}>
+                    {enumOpts ? (
+                      <TextField
+                        select
+                        size="small"
+                        fullWidth
+                        value={draft.value !== undefined && draft.value !== null ? draft.value : (DEFAULT_SETTINGS[row.key] ?? '')}
+                        disabled={draft.busy}
+                        onChange={(e) => this.handleChange(row.key, 'value', e.target.value)}
+                        slotProps={{ htmlInput: { spellCheck: false } }}
+                        inputProps={{ spellCheck: false }}
+                      >
+                        {enumOpts.map((opt) => {
+                          const val = typeof opt === 'object' ? opt.value : opt;
+                          const lbl = typeof opt === 'object' ? opt.label : opt;
+                          return (
+                            <MenuItem key={val} value={val}>
+                              {lbl}
+                            </MenuItem>
+                          );
+                        })}
+                      </TextField>
+                    ) : (
                       <TextField
                         size="small"
                         fullWidth
                         multiline={isMultiline}
                         minRows={isMultiline ? 2 : undefined}
                         maxRows={isMultiline ? 6 : undefined}
+                        placeholder={DEFAULT_SETTINGS[row.key] ?? undefined}
                         value={draft.value}
                         disabled={draft.busy}
                         onChange={(e) => this.handleChange(row.key, 'value', e.target.value)}
@@ -227,7 +257,10 @@ export default class SettingsKeysPanel extends Component {
                           }
                         }}
                         autoComplete="off"
+                        slotProps={{ htmlInput: { spellCheck: false, autoCorrect: 'off', autoCapitalize: 'off' } }}
+                        inputProps={{ spellCheck: false, autoCorrect: 'off', autoCapitalize: 'off' }}
                       />
+                    )}
                   </TableCell>
                   <TableCell align="right" sx={{ verticalAlign: 'top', pt: 1, width: 60 }}>
                     <Stack

src/components/tiles/ArticleTile.jsx

@@ -4,7 +4,8 @@ import Box from '@mui/material/Box';
 import ButtonBase from '@mui/material/ButtonBase';
 import Typography from '@mui/material/Typography';
 import { TILE_SIZE, Tile, tileBaseSx } from 'dashgui/tiles';
-import { formatPrice } from '../../utils/price';
+import { formatPrice, getArticleGross } from '../../utils/price';
+import companyAutomat from '../../automats/companyAutomat';
 import { articleSku } from '../article/articleRoute';
 import {
   getThumbHashDataUrl,
@@ -289,6 +290,7 @@ export class ArticleTile extends Tile {
     if (!article) return null;
     const sku = articleSku(article);
     const brand = article.brand;
+    const grossPrice = getArticleGross(article, companyAutomat.state.current?.taxrate);
     return (
       <>
         {brand?.name ? (
@@ -310,9 +312,9 @@ export class ArticleTile extends Tile {
             {sku}
           </Typography>
         ) : null}
-        {article.net != null && (
+        {grossPrice != null && (
           <Typography variant="caption" fontWeight={600}>
-            {formatPrice(article.net)}
+            {formatPrice(grossPrice)}
           </Typography>
         )}
       </>
@@ -353,6 +355,7 @@ export class ArticleTile extends Tile {
     const hasPhoto = this.hasPhoto();
     const { article, label, sx, disabled } = this.props;
     const sku = articleSku(article);
+    const grossPrice = getArticleGross(article, companyAutomat.state.current?.taxrate);
 
     return (
       <ButtonBase
@@ -451,7 +454,7 @@ export class ArticleTile extends Tile {
               {sku}
             </Typography>
           ) : null}
-          {article.net != null && (
+          {grossPrice != null && (
             <Typography
               variant="caption"
               fontWeight={600}
@@ -461,7 +464,7 @@ export class ArticleTile extends Tile {
                 textShadow: TEXT_GLOW_DARK,
               }}
             >
-              {formatPrice(article.net)}
+              {formatPrice(grossPrice)}
             </Typography>
           )}
         </Box>

src/routes/artikel.jsx

@@ -20,7 +20,7 @@ import ExpandLessIcon from '@mui/icons-material/ExpandLess';
 import ChevronLeftIcon from '@mui/icons-material/ChevronLeft';
 import articleSearchAutomat from '../automats/articleSearchAutomat';
 import BackendError from '../components/BackendError';
-import { formatPrice } from '../utils/price';
+import { formatPrice, getArticleGross } from '../utils/price';
 import {
   buildSearchUrl,
   queryFromParams,
@@ -46,6 +46,7 @@ import {
   setLastCategoryId,
   navigationAutomat,
   categoryAutomat,
+  companyAutomat,
 } from '../automats';
 import { BrandLabel } from '../components/brand';
 import { SCRIM_LABEL } from '../colors';
@@ -586,7 +587,7 @@ class ArtikelSearchPage extends Component {
                       const isParent = Boolean(row.isParent || row.is_parent);
                       const childCount = Number(row.childCount) || 0;
                       const showChildBadge = isParent || childCount > 0;
-                      const price = row.price ?? row.net ?? row.vknetto;
+                      const price = getArticleGross(row, companyAutomat.state.current?.taxrate);
                       return (
                         <ListItemButton
                           key={row.id}

src/utils/price.js

@@ -52,3 +52,38 @@ export function netFromGross(gross, taxRate) {
   if (factor <= 0) return null;
   return Math.round((gross / factor) * 10000) / 10000;
 }
+
+/**
+ * Resolves or calculates the gross price (Bruttopreis) for an article.
+ * Supports:
+ * - Direct gross price (`article.gross`)
+ * - Net price with tax rate (`article.net`, `article.taxRate`)
+ * - Nested prices array (`article.prices`)
+ *
+ * @param {object|null} article
+ * @param {number} [defaultTaxRate=0] Fallback tax rate if not present on article/price
+ * @returns {number|null} Gross price rounded to 2 decimal places, or null
+ */
+export function getArticleGross(article, defaultTaxRate = 0) {
+  if (!article) return null;
+  if (article.gross != null && Number.isFinite(Number(article.gross))) {
+    return Number(article.gross);
+  }
+  let net = article.net ?? article.price ?? article.vknetto;
+  let taxRate = article.taxRate;
+  if (net == null && Array.isArray(article.prices) && article.prices.length > 0) {
+    const base = article.prices.find((p) => p.minmultiplier === 1) ?? article.prices[0];
+    if (base?.gross != null && Number.isFinite(Number(base.gross))) {
+      return Number(base.gross);
+    }
+    net = base?.net;
+    if (taxRate == null) taxRate = base?.taxRate;
+  }
+  if (net == null || !Number.isFinite(Number(net))) return null;
+  const rate = taxRate != null && Number.isFinite(Number(taxRate))
+    ? Number(taxRate)
+    : Number(defaultTaxRate ?? 0);
+  const gross = Number(net) * (1 + rate / 100);
+  return Math.round((gross + Number.EPSILON) * 100) / 100;
+}
+