payment button connected

frontend/pshared/lib/api/responses/payment/payment.dart

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+import 'package:json_annotation/json_annotation.dart';
+
+import 'package:pshared/api/responses/base.dart';
+import 'package:pshared/api/responses/token.dart';
+import 'package:pshared/data/dto/payment/payment.dart';
+
+part 'payment.g.dart';
+
+
+@JsonSerializable(explicitToJson: true)
+class PaymentResponse extends BaseAuthorizedResponse {
+
+  final PaymentDTO payment;
+
+  const PaymentResponse({required super.accessToken, required this.payment});
+
+  factory PaymentResponse.fromJson(Map<String, dynamic> json) => _$PaymentResponseFromJson(json);
+  @override
+  Map<String, dynamic> toJson() => _$PaymentResponseToJson(this);
+}

frontend/pshared/lib/provider/payment/provider.dart

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+import 'package:flutter/foundation.dart';
+
+import 'package:pshared/models/payment/payment.dart';
+import 'package:pshared/provider/organizations.dart';
+import 'package:pshared/provider/payment/quotation.dart';
+import 'package:pshared/provider/resource.dart';
+import 'package:pshared/service/payment/service.dart';
+
+
+class PaymentProvider extends ChangeNotifier {
+  late OrganizationsProvider _organization;
+  late QuotationProvider _quotation;
+
+  Resource<Payment> _payment = Resource(data: null, isLoading: false, error: null);
+  bool _isLoaded = false;
+
+  void update(OrganizationsProvider organization, QuotationProvider quotation) {
+    _quotation = quotation;
+    _organization = organization;
+  }
+
+  Payment? get payment => _payment.data;
+  bool get isLoading => _payment.isLoading;
+  Exception? get error => _payment.error;
+  bool get isReady => _isLoaded && !_payment.isLoading && _payment.error == null;
+
+  void _setResource(Resource<Payment> payment) {
+    _payment = payment;
+    notifyListeners();
+  }
+
+  Future<Payment?> pay({String? idempotencyKey, Map<String, String>? metadata}) async {
+    if (!_organization.isOrganizationSet) throw StateError('Organization is not set');
+    if (!_quotation.isReady) throw StateError('Quotation is not ready');
+    final quoteRef = _quotation.quotation?.quoteRef;
+    if (quoteRef == null || quoteRef.isEmpty) {
+      throw StateError('Quotation reference is not set');
+    }
+
+    _setResource(_payment.copyWith(isLoading: true, error: null));
+    try {
+      final response = await PaymentService.pay(
+        _organization.current.id,
+        quoteRef,
+        idempotencyKey: idempotencyKey,
+        metadata: metadata,
+      );
+      _isLoaded = true;
+      _setResource(_payment.copyWith(data: response, isLoading: false, error: null));
+    } catch (e) {
+      _setResource(_payment.copyWith(
+        data: null,
+        error: e is Exception ? e : Exception(e.toString()),
+        isLoading: false,
+      ));
+    }
+    return _payment.data;
+  }
+
+  void reset() {
+    _setResource(Resource(data: null, isLoading: false, error: null));
+    _isLoaded = false;
+  }
+}

frontend/pshared/lib/service/payment/service.dart

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+import 'package:logging/logging.dart';
+
+import 'package:uuid/uuid.dart';
+
+import 'package:pshared/api/requests/payment/initiate.dart';
+import 'package:pshared/api/responses/payment/payment.dart';
+import 'package:pshared/data/mapper/payment/payment_response.dart';
+import 'package:pshared/models/payment/payment.dart';
+import 'package:pshared/service/authorization/service.dart';
+import 'package:pshared/service/services.dart';
+
+
+class PaymentService {
+  static final _logger = Logger('service.payment');
+  static const String _objectType = Services.payments;
+
+  static Future<Payment> pay(
+    String organizationRef,
+    String quotationRef, {
+    String? idempotencyKey,
+    Map<String, String>? metadata,
+  }) async {
+    _logger.fine('Executing payment for quotation $quotationRef in $organizationRef');
+    final request = InitiatePaymentRequest(
+      idempotencyKey: idempotencyKey ?? Uuid().v4(),
+      quoteRef: quotationRef,
+      metadata: metadata,
+    );
+    final response = await AuthorizationService.getPOSTResponse(
+      _objectType, 
+      '/by-quote/$organizationRef', 
+      request.toJson(),
+    );
+    return PaymentResponse.fromJson(response).payment.toDomain();
+  }  
+}