redesigned payment page + a lot of fixes

frontend/pweb/lib/pages/payout_page/send/page_handlers.dart

@@ -0,0 +1,99 @@
+import 'package:flutter/material.dart';
+
+import 'package:go_router/go_router.dart';
+
+import 'package:provider/provider.dart';
+
+import 'package:pshared/models/payment/type.dart';
+import 'package:pshared/models/recipient/recipient.dart';
+import 'package:pshared/provider/payment/flow.dart';
+import 'package:pshared/provider/payment/provider.dart';
+import 'package:pshared/provider/payment/quotation/quotation.dart';
+import 'package:pshared/provider/recipient/provider.dart';
+
+import 'package:pweb/app/router/payout_routes.dart';
+import 'package:pweb/widgets/sidebar/destinations.dart';
+import 'package:pweb/widgets/dialogs/payment_status_dialog.dart';
+import 'package:pweb/controllers/payments/page.dart';
+import 'package:pweb/controllers/payments/page_ui.dart';
+import 'package:pweb/controllers/payouts/payout_verification.dart';
+import 'package:pweb/utils/payment/payout_verification_flow.dart';
+
+
+void initializePaymentPage(
+  BuildContext context,
+  PaymentType? initialPaymentType,
+) {
+  final flowProvider = context.read<PaymentFlowProvider>();
+  flowProvider.setPreferredType(initialPaymentType);
+}
+
+void handleSearchChanged(PaymentPageUiController uiController, String query) {
+  uiController.setQuery(query);
+}
+
+void handleRecipientSelected(
+  BuildContext context,
+  PaymentPageUiController uiController,
+  Recipient recipient,
+) {
+  final recipientProvider = context.read<RecipientsProvider>();
+  recipientProvider.setCurrentObject(recipient.id);
+  uiController.clearSearch();
+}
+
+void handleRecipientCleared(
+  BuildContext context,
+  PaymentPageUiController uiController,
+) {
+  final recipientProvider = context.read<RecipientsProvider>();
+  recipientProvider.setCurrentObject(null);
+  uiController.clearSearch();
+}
+
+Future<void> handleSendPayment({
+  required State state,
+  required PayoutDestination fallbackDestination,
+}) async {
+  final context = state.context;
+  final paymentProvider = context.read<PaymentProvider>();
+  final quotationProvider = context.read<QuotationProvider>();
+  final controller = context.read<PaymentPageController>();
+  final verificationController = context.read<PayoutVerificationController>();
+  if (paymentProvider.isLoading) return;
+  final verificationContextKey =
+      quotationProvider.quotation?.quoteRef ??
+      quotationProvider.quotation?.idempotencyKey;
+
+  final verified = await runPayoutVerification(
+    context: context,
+    controller: verificationController,
+    contextKey: verificationContextKey,
+  );
+  if (!verified || !state.mounted) return;
+
+  final isSuccess = await controller.sendPayment();
+  if (!state.mounted) return;
+
+  await showPaymentStatusDialog(context, isSuccess: isSuccess);
+  if (!state.mounted) return;
+
+  if (isSuccess) {
+    controller.handleSuccess();
+    context.goToPayout(fallbackDestination);
+  }
+}
+
+void handleAddRecipient(BuildContext context) {
+  final recipients = context.read<RecipientsProvider>();
+  recipients.setCurrentObject(null);
+  context.pushToPayout(PayoutDestination.addrecipient);
+}
+
+void handleAddPaymentMethod(BuildContext context) {
+  final recipients = context.read<RecipientsProvider>();
+  final recipient = recipients.currentObject;
+  if (recipient == null) return;
+  recipients.setCurrentObject(recipient.id);
+  context.pushNamed(PayoutRoutes.editRecipient);
+}