Integrate stock availability data and StockBadge component across all views

services/dataProcessor.ts

@@ -1619,3 +1619,40 @@ export const calculateForecastViewData = (
         };
     });
 };
+
+export const processStockExcel = async (fileOrBuffer: File | ArrayBuffer): Promise<Map<string, number>> => {
+    try {
+        const arrayBuffer = fileOrBuffer instanceof File
+            ? await fileOrBuffer.arrayBuffer()
+            : fileOrBuffer;
+        const workbook = XLSX.read(arrayBuffer, { type: 'array' });
+        const sheetName = workbook.SheetNames[0];
+        const worksheet = workbook.Sheets[sheetName];
+        const jsonData: any[][] = XLSX.utils.sheet_to_json(worksheet, { header: 1 });
+
+        const stockMap = new Map<string, number>();
+
+        // Skip headers (index 0)
+        for (let i = 1; i < jsonData.length; i++) {
+            const row = jsonData[i];
+            const rawSku = String(row[0] || '').trim();
+            if (!rawSku) continue;
+
+            // Normalize SKU: Remove trailing EN or DE
+            const normalizedSku = rawSku.replace(/(DE|EN)$/i, '');
+
+            // User requested Column I which is index 8 (After Assembly Orders GMBH)
+            const stockValue = Number(row[8] || 0);
+
+            if (!isNaN(stockValue)) {
+                const current = stockMap.get(normalizedSku) || 0;
+                stockMap.set(normalizedSku, current + stockValue);
+            }
+        }
+
+        return stockMap;
+    } catch (error) {
+        console.error("Error processing Stock Excel:", error);
+        throw error;
+    }
+};