changes and optimisations

src/app/pages/cart/cart.component.ts

@@ -167,7 +167,7 @@ export class CartComponent implements OnDestroy {
 
     const paymentData = {
       amount: this.totalPrice(),
-      currency: 'RUB',
+      currency: this.items()[0]?.currency || 'RUB',
       siteuserID: userId,
       siteorderID: orderId,
       redirectUrl: '',
@@ -193,6 +193,7 @@ export class CartComponent implements OnDestroy {
       error: (err) => {
         console.error('Error creating payment:', err);
         this.paymentStatus.set('timeout');
+        if (this.closeTimeout) clearTimeout(this.closeTimeout);
         this.closeTimeout = setTimeout(() => {
           this.closePaymentPopup();
         }, 4000);
@@ -201,6 +202,7 @@ export class CartComponent implements OnDestroy {
   }
 
   startPolling(): void {
+    this.stopPolling();
     this.pollingSubscription = interval(5000) // every 5 seconds
       .pipe(
         take(this.maxChecks), // maximum 36 checks (3 minutes)
@@ -225,6 +227,7 @@ export class CartComponent implements OnDestroy {
           if (this.paymentStatus() === 'waiting') {
             this.paymentStatus.set('timeout');
             // Close popup after showing timeout message
+            if (this.closeTimeout) clearTimeout(this.closeTimeout);
             this.closeTimeout = setTimeout(() => {
               this.closePaymentPopup();
             }, 3000);
@@ -233,6 +236,7 @@ export class CartComponent implements OnDestroy {
         error: (err) => {
           console.error('Error checking payment status:', err);
           // Continue checking even on error until time runs out
+          if (this.closeTimeout) clearTimeout(this.closeTimeout);
           this.closeTimeout = setTimeout(() => {
             this.closePaymentPopup();
           }, 3000);