feat(pricing): source EMCO Compliant live from Business Central

EMCO Compliant is maintained manually in BC, so the pricing column now
fetches it from the new /api/bc-empco endpoint (items API, field
empCOCompliant) on every app load instead of reading the Dropbox matrix.
One fetch per page load, cached across tab switches; sorting uses the
live map.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

api/bc-empco.js

@@ -0,0 +1,54 @@
+import { applyCors, isAllowedOrigin } from './_cors.js';
+import { getBcConfig, getBCToken, getItemsUrl } from '../bc-runtime.js';
+
+function setCors(req, res) {
+  applyCors(req, res, 'GET, OPTIONS');
+}
+
+export default async function handler(req, res) {
+  setCors(req, res);
+
+  if (req.method === 'OPTIONS') return res.status(204).end();
+
+  const origin = req.headers.origin;
+  if (origin && !isAllowedOrigin(origin)) {
+    return res.status(403).json({ error: 'Forbidden' });
+  }
+
+  if (req.method !== 'GET') {
+    return res.status(405).json({ error: 'Method not allowed' });
+  }
+
+  try {
+    const config = getBcConfig();
+    const token = await getBCToken(config);
+    const itemsUrl = getItemsUrl(config);
+
+    // Note: $select suppresses @odata.nextLink on this BC API, so page manually with $skip.
+    const TOP = 1000;
+    const values = {};
+    for (let skip = 0; ; skip += TOP) {
+      const response = await fetch(`${itemsUrl}?$select=no,empCOCompliant&$top=${TOP}&$skip=${skip}`, {
+        headers: { Authorization: `Bearer ${token}`, Accept: 'application/json' },
+      });
+      if (!response.ok) {
+        const txt = await response.text();
+        throw new Error(`BC GET items failed (${response.status}): ${txt}`);
+      }
+      const json = await response.json();
+      const page = json.value || [];
+      for (const item of page) {
+        if (item.no !== undefined && item.no !== null) {
+          values[String(item.no)] = Boolean(item.empCOCompliant);
+        }
+      }
+      if (page.length < TOP) break;
+    }
+
+    res.setHeader('Cache-Control', 's-maxage=300, stale-while-revalidate=600');
+    return res.json({ success: true, count: Object.keys(values).length, values });
+  } catch (err) {
+    console.error('[bc-empco] error:', err.message);
+    return res.status(500).json({ success: false, error: err.message });
+  }
+}

src/components/PricingView.tsx

@@ -57,6 +57,24 @@ function findCol(headers: string[], ...keywords: string[]): number {
   );
 }
 
+// EMCO Compliant is maintained manually in Business Central, so it is fetched
+// live from BC (via /api/bc-empco) instead of the Dropbox matrix file.
+// Module-level cache: one fetch per page load, shared across tab switches.
+let empcoFetchPromise: Promise<Record<string, boolean>> | null = null;
+function fetchEmpcoMap(): Promise<Record<string, boolean>> {
+  if (!empcoFetchPromise) {
+    empcoFetchPromise = fetch('/api/bc-empco')
+      .then(res => (res.ok ? res.json() : Promise.reject(new Error(`HTTP ${res.status}`))))
+      .then(json => (json && json.values && typeof json.values === 'object' ? json.values : {}))
+      .catch(err => {
+        console.warn('[bc-empco] fetch failed:', err);
+        empcoFetchPromise = null; // allow retry on next mount
+        return {};
+      });
+  }
+  return empcoFetchPromise;
+}
+
 export function PricingView({ data, headers, onSaveRow, onCaptureState, onEdit, rowStatuses, dashboardDrilldown, onDashboardDrilldownApplied }: PricingViewProps) {
   const COLUMNS = useColumns();
   const [filterMode, setFilterMode] = usePersistentState<FilterMode>('pricing-filterMode', 'all_errors');
@@ -245,7 +263,15 @@ export function PricingView({ data, headers, onSaveRow, onCaptureState, onEdit,
   }, [resizingColumn, resizeStartX, resizeStartWidth]);
 
   // ── Dynamic column detection ──────────────────────────────────────────────
-  const { uvpIdx, srpCols, containerCols, nwIdx, gwIdx, unitsOuterIdx, units40fIdx, empcoIdx } = useMemo(() => {
+  // EMCO Compliant values live from Business Central (null = still loading)
+  const [empcoMap, setEmpcoMap] = useState<Record<string, boolean> | null>(null);
+  useEffect(() => {
+    let alive = true;
+    fetchEmpcoMap().then(map => { if (alive) setEmpcoMap(map); });
+    return () => { alive = false; };
+  }, []);
+
+  const { uvpIdx, srpCols, containerCols, nwIdx, gwIdx, unitsOuterIdx, units40fIdx } = useMemo(() => {
     const uvpIdx = findCol(headers, 'uvp');
 
     // All SRP columns, sorted: INT first, UK second, then alphabetically
@@ -274,10 +300,7 @@ export function PricingView({ data, headers, onSaveRow, onCaptureState, onEdit,
 
     const units40fIdx = findCol(headers, '40f');
 
-    // EmpCO_Compliant column from the matrix file (empty until the new layout is live)
-    const empcoIdx = findCol(headers, 'empco');
-
-    return { uvpIdx, srpCols: srp, containerCols: container, nwIdx, gwIdx, unitsOuterIdx, units40fIdx, empcoIdx };
+    return { uvpIdx, srpCols: srp, containerCols: container, nwIdx, gwIdx, unitsOuterIdx, units40fIdx };
   }, [headers, COLUMNS]);
 
   useEffect(() => {
@@ -608,8 +631,20 @@ export function PricingView({ data, headers, onSaveRow, onCaptureState, onEdit,
     if (sortConfig.key === null || sortConfig.direction === null) return filteredRows;
 
     const { key, direction } = sortConfig;
+
+    // EMCO Compliant sorts by the live BC map (not a row column)
+    if (key === 'empco') {
+      const rank = (r: ExcelRow) => {
+        const v = empcoMap?.[String(r[COLUMNS.ARTICLE_NO] ?? '')];
+        return v === true ? 2 : v === false ? 1 : 0;
+      };
+      return [...filteredRows].sort((a, b) =>
+        direction === 'asc' ? rank(a.row) - rank(b.row) : rank(b.row) - rank(a.row)
+      );
+    }
+
     let colIndex: number;
-    
+
     if (typeof key === 'number') {
       colIndex = key;
     } else {
@@ -620,7 +655,6 @@ export function PricingView({ data, headers, onSaveRow, onCaptureState, onEdit,
         case 'line': colIndex = COLUMNS.LINE; break;
         case 'classification': colIndex = COLUMNS.CLASSIFICATION; break;
         case 'productType': colIndex = COLUMNS.CATEGORIZATION_CODE; break;
-        case 'empco': colIndex = empcoIdx; break;
         case 'unitsOuter': colIndex = unitsOuterIdx; break;
         case 'outerW': colIndex = COLUMNS.OUTER_W; break;
         case 'outerL': colIndex = COLUMNS.OUTER_L; break;
@@ -660,7 +694,7 @@ export function PricingView({ data, headers, onSaveRow, onCaptureState, onEdit,
     });
 
     return sorted;
-  }, [filteredRows, sortConfig]);
+  }, [filteredRows, sortConfig, empcoMap, COLUMNS]);
 
   // ── Pagination ─────────────────────────────────────────────────────────
   const paginatedRows = useMemo(() => {
@@ -766,7 +800,7 @@ export function PricingView({ data, headers, onSaveRow, onCaptureState, onEdit,
       { key: 'line', label: 'Line', index: COLUMNS.LINE },
       { key: 'classification', label: 'Classification', index: COLUMNS.CLASSIFICATION },
       { key: 'productType', label: 'CategorizationCode', index: COLUMNS.CATEGORIZATION_CODE },
-      { key: 'empco', label: 'EMCO Compliant', index: empcoIdx },
+      { key: 'empco', label: 'EMCO Compliant', index: -1 },
       { key: 'itemToLogistic', label: 'Item to Logistic', index: COLUMNS.ITEM_TO_LOGISTIC },
       { key: 'unitsOuter', label: 'Units/Outer', index: unitsOuterIdx },
       { key: 'outerW', label: 'Outer W', index: COLUMNS.OUTER_W },
@@ -781,7 +815,7 @@ export function PricingView({ data, headers, onSaveRow, onCaptureState, onEdit,
       cols.push({ key: `con_${col.index}`, label: col.name, index: col.index });
     });
     return cols;
-  }, [COLUMNS, unitsOuterIdx, empcoIdx, pricingEditableCols, containerCols]);
+  }, [COLUMNS, unitsOuterIdx, pricingEditableCols, containerCols]);
 
   const togglePinnedColumn = (key: string) => {
     setPinnedColumns(prev => {
@@ -2128,14 +2162,17 @@ export function PricingView({ data, headers, onSaveRow, onCaptureState, onEdit,
                       )}
                     </td>
 
-                    {/* EMCO Compliant cell (read-only, from matrix file) */}
+                    {/* EMCO Compliant cell (read-only, live from Business Central) */}
                     <td className={cn("px-3 py-2 relative", isPinned('empco') && "sticky bg-slate-800")} style={isPinned('empco') ? { left: getStickyLeft('empco') ?? 0, zIndex: getStickyRank('empco') ?? 0 } : {}}>
                       {(() => {
-                        const raw = empcoIdx >= 0 ? String(row[empcoIdx] ?? '').trim().toLowerCase() : '';
-                        if (raw === 'true' || raw === 'yes') {
+                        if (empcoMap === null) {
+                          return <span className="text-xs text-slate-600 animate-pulse">…</span>;
+                        }
+                        const value = empcoMap[String(row[COLUMNS.ARTICLE_NO] ?? '')];
+                        if (value === true) {
                           return <span className="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-teal-500/10 text-teal-300 border border-teal-500/30">Yes</span>;
                         }
-                        if (raw === 'false' || raw === 'no') {
+                        if (value === false) {
                           return <span className="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-red-500/10 text-red-300 border border-red-500/30">No</span>;
                         }
                         return <span className="text-xs text-slate-500">-</span>;