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src/queries/max-order-id.js

@@ -0,0 +1,23 @@
+import sql from 'mssql';
+import { getPool } from '../db.js';
+import { getActiveShopSubshopId } from '../shop.js';
+
+const MAX_ORDER_ID_SQL = `
+SELECT ISNULL(MAX(kPosAuftrag), 0) AS MaxOrderId
+FROM Pos.tAuftragMapping
+WHERE kShopSubShop = @kShopSubShop;
+`;
+
+export async function getMaxOrderIdCount() {
+  const kShopSubShop = getActiveShopSubshopId();
+  if (!kShopSubShop) {
+    return 0;
+  }
+
+  const result = await getPool()
+    .request()
+    .input('kShopSubShop', sql.Int, kShopSubShop)
+    .query(MAX_ORDER_ID_SQL);
+
+  return result.recordset[0]?.MaxOrderId ?? 0;
+}