feat: discount formatted attributes of sale transactions

packages/server/src/interfaces/SaleEstimate.ts

@@ -25,6 +25,11 @@ export interface ISaleEstimate {
 
   branchId?: number;
   warehouseId?: number;
+
+  discountAmount?: number;
+  discountPercentage?: number | null;
+
+  adjustment?: number;
 }
 export interface ISaleEstimateDTO {
   customerId: number;

packages/server/src/interfaces/SaleInvoice.ts

@@ -83,8 +83,8 @@ export interface ISaleInvoice {
 }
 
 export enum DiscountType {
-  Percentage = 'Percentage',
-  Amount = 'Amount',
+  Percentage = 'percentage',
+  Amount = 'amount',
 }
 
 export interface ISaleInvoiceDTO {

packages/server/src/interfaces/SaleReceipt.ts

@@ -28,6 +28,11 @@ export interface ISaleReceipt {
 
   localAmount?: number;
   entries?: IItemEntry[];
+
+  discountAmount: number;
+  discountPercentage?: number | null;
+  
+  adjustment?: number;
 }
 
 export interface ISalesReceiptsFilter {