Fix: Unable to receive payment as the amountVal as always zero.

bookie/src/app/sales/bill.service.ts

@@ -37,8 +37,7 @@ export class BillService {
   public discountAmount: Observable<number>;
   public hhAmount: Observable<number>;
   public taxAmount: Observable<number>;
-  public amount: Observable<number>;
-  public amountVal: number;
+  public amount: BehaviorSubject<number>;
   public selection = new SelectionModel<string>(true, []);
   private updateTable: boolean;
   private allowDeactivate: boolean;
@@ -47,7 +46,6 @@ export class BillService {
 
   constructor() {
     this.dataObs = new BehaviorSubject<Kot[]>([]);
-    this.amountVal = 0;
     this.updateTable = true;
     this.allowDeactivate = false;
 
@@ -97,25 +95,28 @@ export class BillService {
       }),
     );
 
-    this.amount = this.dataObs.pipe(
-      map((kots: Kot[]) => {
-        return this.math.halfRoundEven(
-          kots.reduce(
-            (t, k) =>
-              k.inventories.reduce(
-                (a, c) =>
-                  a +
-                  this.math.halfRoundEven(
-                    (c.isHappyHour ? 0 : c.price) * c.quantity * (1 - c.discount) * (1 + c.taxRate),
-                    2,
-                  ),
-                0,
-              ) + t,
-            0,
-          ),
-        );
-      }),
-    );
+    this.amount = new BehaviorSubject<number>(0);
+    this.dataObs
+      .pipe(
+        map((kots: Kot[]) => {
+          return this.math.halfRoundEven(
+            kots.reduce(
+              (t, k) =>
+                k.inventories.reduce(
+                  (a, c) =>
+                    a +
+                    this.math.halfRoundEven(
+                      (c.isHappyHour ? 0 : c.price) * c.quantity * (1 - c.discount) * (1 + c.taxRate),
+                      2,
+                    ),
+                  0,
+                ) + t,
+              0,
+            ),
+          );
+        }),
+      )
+      .subscribe((value) => this.amount.next(value));
   }
 
   displayBill(): void {

bookie/src/app/sales/home/sales-home.component.ts

@@ -195,7 +195,7 @@ export class SalesHomeComponent {
     if (!this.receivePaymentAllowed()) {
       return;
     }
-    const amount = this.bs.amountVal;
+    const amount = this.bs.amount.value;
     const type = this.bs.bill.voucherType;
     this.dialog
       .open(ReceivePaymentComponent, {