refactor(FE): Reset products when source warehouse changes

src/components/pages/inventory/movement/form/MovementForm.tsx

@@ -1,6 +1,6 @@
 'use client';
 
-import { useCallback, useEffect, useMemo, useState } from 'react';
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 import { useFormik } from 'formik';
 import useSWR from 'swr';
 
@@ -263,6 +263,47 @@ const MovementForm = ({ type = 'add', initialValues }: MovementFormProps) => {
     },
   });
 
+  const prevSourceWarehouseIdRef = useRef<number | null>(
+    formik.values.source_warehouse_id
+  );
+
+  // ===== RESET PRODUCTS WHEN SOURCE WAREHOUSE CHANGES =====
+  useEffect(() => {
+    const prevSourceWarehouseId = prevSourceWarehouseIdRef.current;
+    const currentSourceWarehouseId = formik.values.source_warehouse_id;
+
+    if (
+      prevSourceWarehouseId !== currentSourceWarehouseId &&
+      prevSourceWarehouseId !== null
+    ) {
+      formik.setFieldValue('products', [
+        {
+          product: null,
+          product_id: 0,
+          product_qty: '',
+        },
+      ]);
+      formik.setFieldTouched('products', false);
+
+      const updatedDeliveries = formik.values.deliveries.map(
+        (delivery: DeliverySchema) => ({
+          ...delivery,
+          products: [
+            {
+              product: null,
+              product_id: 0,
+              product_qty: '',
+            },
+          ],
+        })
+      );
+      formik.setFieldValue('deliveries', updatedDeliveries);
+      formik.setFieldTouched('deliveries', false);
+    }
+
+    prevSourceWarehouseIdRef.current = currentSourceWarehouseId;
+  }, [formik.values.source_warehouse_id, formik.values.deliveries]);
+
   // ===== PRODUCT WAREHOUSE FETCHING (after form initialization) =====
   const {
     setInputValue: setProductWarehouseSelectInputValue,