Adjust StockItem form (#8869)

- Auto-set expiry date

src/frontend/src/forms/StockForms.tsx

@@ -68,6 +68,8 @@ export function useStockFields({
   const [nextBatchCode, setNextBatchCode] = useState<string>('');
   const [nextSerialNumber, setNextSerialNumber] = useState<string>('');
 
+  const [expiryDate, setExpiryDate] = useState<string | null>(null);
+
   const batchGenerator = useBatchCodeGenerator((value: any) => {
     if (value) {
       setNextBatchCode(`${t`Next batch code`}: ${value}`);
@@ -106,6 +108,18 @@ export function useStockFields({
 
           // Clear the 'supplier_part' field if the part is changed
           setSupplierPart(null);
+
+          // Adjust the 'expiry date' for the stock item
+          const expiry_days = record?.default_expiry ?? 0;
+
+          if (expiry_days && expiry_days > 0) {
+            // Adjust the expiry date based on the part default expiry
+            setExpiryDate(
+              new Date(
+                new Date().getTime() + expiry_days * 24 * 60 * 60 * 1000
+              ).toISOString()
+            );
+          }
         }
       },
       supplier_part: {
@@ -171,7 +185,11 @@ export function useStockFields({
       },
       expiry_date: {
         icon: <IconCalendarExclamation />,
-        hidden: !globalSettings.isSet('STOCK_ENABLE_EXPIRY')
+        hidden: !globalSettings.isSet('STOCK_ENABLE_EXPIRY'),
+        value: expiryDate,
+        onValueChange: (value) => {
+          setExpiryDate(value);
+        }
       },
       purchase_price: {
         icon: <IconCurrencyDollar />
@@ -194,9 +212,15 @@ export function useStockFields({
     // TODO: Handle custom field management based on provided options
     // TODO: refer to stock.py in original codebase
 
+    // Remove the expiry date field if it is not enabled
+    if (!globalSettings.isSet('STOCK_ENABLE_EXPIRY')) {
+      delete fields.expiry_date;
+    }
+
     return fields;
   }, [
     stockItem,
+    expiryDate,
     partInstance,
     partId,
     globalSettings,