feat(MED-161): move medipost xml validate to separate service

lib/services/medipost/medipostValidate.service.ts

@@ -0,0 +1,25 @@
+'use server';
+
+import {
+  IMedipostResponseXMLBase,
+} from '@/lib/types/medipost';
+
+import { MedipostValidationError } from './MedipostValidationError';
+import { parseXML } from '../util/xml.service';
+
+export async function validateMedipostResponse(response: string, { canHaveEmptyCode = false }: { canHaveEmptyCode?: boolean } = {}) {
+  const parsed: IMedipostResponseXMLBase = parseXML(response);
+  const code = parsed.ANSWER?.CODE;
+  if (canHaveEmptyCode) {
+    if (code && code !== 0) {
+      console.error("Bad response", response);
+      throw new MedipostValidationError(response);
+    }
+    return;
+  }
+
+  if (typeof code !== 'number' || (code !== 0 && !canHaveEmptyCode)) {
+    console.error("Bad response", response);
+    throw new MedipostValidationError(response);
+  }
+}