discount

src/pages/invoice/Update.tsx

@@ -16,12 +16,14 @@ import DatePickerComponent from "@/components/DatePicker";
 import { useGetInvoiceDetail, useUpdateInvoice } from "./hooks/useInvoiceData";
 import { useMultiUpload } from "../uploader/hooks/useUploader";
 import moment from "moment-jalaali";
+import { getItemLineTotal } from "./utils/invoiceItem";
 
 const createEmptyItem = (): CreatePreInvoiceItemType => ({
   productId: "",
   quantity: 1,
   unitPrice: 0,
   discount: 0,
+  discountPercent: null,
   description: "",
 });
 
@@ -88,7 +90,9 @@ const UpdateInvoice: FC = () => {
           productId: i.productId,
           quantity: i.quantity,
           unitPrice: i.unitPrice,
-          discount: i.discount || 0,
+          ...(i.discountPercent != null && i.discountPercent > 0
+            ? { discountPercent: i.discountPercent }
+            : { discount: i.discount || 0 }),
           description: i.description || "",
         })),
         enableTax: values.enableTax,
@@ -137,6 +141,8 @@ const UpdateInvoice: FC = () => {
             quantity: i.quantity ?? 1,
             unitPrice: i.unitPrice ?? 0,
             discount: i.discount ?? 0,
+            discountPercent:
+              i.discountPercent != null && i.discountPercent > 0 ? i.discountPercent : null,
             description: i.description ?? "",
           }))
           : [createEmptyItem()];
@@ -149,11 +155,13 @@ const UpdateInvoice: FC = () => {
   const handleItemChange = (
     index: number,
     field: keyof CreatePreInvoiceItemType,
-    value: string | number
+    value: string | number | null
   ) => {
-    const next = [...items];
-    next[index] = { ...next[index], [field]: value };
-    setItems(next);
+    setItems((prev) =>
+      prev.map((item, itemIndex) =>
+        itemIndex === index ? { ...item, [field]: value } : item
+      )
+    );
   };
 
   const addItem = (currentIndex: number) => {
@@ -174,10 +182,7 @@ const UpdateInvoice: FC = () => {
     setItems(items.filter((_, i) => i !== index));
   };
 
-  const totalAmount = items.reduce(
-    (sum, i) => sum + (i.quantity || 0) * (i.unitPrice || 0) - (i.discount || 0),
-    0
-  );
+  const totalAmount = items.reduce((sum, i) => sum + getItemLineTotal(i), 0);
 
   if (isLoadingInvoice || !invoice) {
     return (