verification before payment and email fixes

frontend/pshared/lib/provider/payout_verification.dart

@@ -0,0 +1,103 @@
+import 'package:flutter/material.dart';
+
+import 'package:pshared/api/responses/verification/response.dart';
+import 'package:pshared/provider/resource.dart';
+import 'package:pshared/service/verification.dart';
+import 'package:pshared/utils/exception.dart';
+
+
+class PayoutVerificationProvider extends ChangeNotifier {
+  Resource<VerificationResponse?> _resource = Resource(data: null);
+  DateTime? _cooldownUntil;
+
+  VerificationResponse? get response => _resource.data;
+  bool get isLoading => _resource.isLoading;
+  Exception? get error => _resource.error;
+  String get target => _resource.data?.target ?? '';
+  String? get idempotencyKey => _resource.data?.idempotencyKey;
+  DateTime? get cooldownUntil => _cooldownUntil;
+
+  Future<VerificationResponse> requestCode() async {
+    _setResource(_resource.copyWith(isLoading: true, error: null));
+    try {
+      final response = await VerificationService.requestPayoutCode();
+      _cooldownUntil = _resolveCooldownUntil(response);
+      _setResource(_resource.copyWith(
+        data: response,
+        isLoading: false,
+        error: null,
+      ));
+      return response;
+    } catch (e) {
+      _setResource(_resource.copyWith(
+        isLoading: false,
+        error: toException(e),
+      ));
+      rethrow;
+    }
+  }
+
+  Future<VerificationResponse> resendCode() async {
+    final currentKey = _resource.data?.idempotencyKey;
+    if (currentKey == null || currentKey.isEmpty) {
+      throw StateError('Payout verification is not initialized');
+    }
+
+    _setResource(_resource.copyWith(isLoading: true, error: null));
+    try {
+      final response = await VerificationService.resendPayoutCode(
+        idempotencyKey: currentKey,
+      );
+      _cooldownUntil = _resolveCooldownUntil(response);
+      _setResource(_resource.copyWith(
+        data: response,
+        isLoading: false,
+        error: null,
+      ));
+      return response;
+    } catch (e) {
+      _setResource(_resource.copyWith(
+        isLoading: false,
+        error: toException(e),
+      ));
+      rethrow;
+    }
+  }
+
+  Future<void> confirmCode(String code) async {
+    final currentKey = _resource.data?.idempotencyKey;
+    if (currentKey == null || currentKey.isEmpty) {
+      throw StateError('Payout verification is not initialized');
+    }
+
+    _setResource(_resource.copyWith(isLoading: true, error: null));
+    try {
+      await VerificationService.confirmPayoutCode(
+        code: code.trim(),
+        idempotencyKey: currentKey,
+      );
+      _setResource(_resource.copyWith(isLoading: false, error: null));
+    } catch (e) {
+      _setResource(_resource.copyWith(
+        isLoading: false,
+        error: toException(e),
+      ));
+      rethrow;
+    }
+  }
+
+  void reset() {
+    _cooldownUntil = null;
+    _setResource(Resource(data: null));
+  }
+
+  DateTime? _resolveCooldownUntil(VerificationResponse response) {
+    if (response.cooldownSeconds <= 0) return null;
+    return DateTime.now().add(response.cooldownDuration);
+  }
+
+  void _setResource(Resource<VerificationResponse?> resource) {
+    _resource = resource;
+    notifyListeners();
+  }
+}