134 lines
3.5 KiB
Dart
134 lines
3.5 KiB
Dart
import 'package:flutter/foundation.dart';
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import 'package:pshared/models/payment/methods/data.dart';
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import 'package:pshared/models/payment/type.dart';
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import 'package:pshared/models/recipient/recipient.dart';
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import 'package:pshared/provider/recipient/pmethods.dart';
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class PaymentFlowProvider extends ChangeNotifier {
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PaymentType _selectedType;
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PaymentMethodData? _manualPaymentData;
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MethodMap _availableTypes = {};
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Recipient? _recipient;
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PaymentFlowProvider({
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required PaymentType initialType,
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}) : _selectedType = initialType;
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PaymentType get selectedType => _selectedType;
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PaymentMethodData? get manualPaymentData => _manualPaymentData;
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Recipient? get recipient => _recipient;
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bool get hasRecipient => _recipient != null;
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MethodMap get availableTypes => hasRecipient
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? _availableTypes
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: {for (final type in PaymentType.values) type: null};
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PaymentMethodData? get selectedPaymentData =>
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hasRecipient ? _availableTypes[_selectedType] : _manualPaymentData;
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void syncWith({
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required Recipient? recipient,
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required PaymentMethodsProvider methodsProvider,
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PaymentType? preferredType,
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}) =>
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_applyState(
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recipient: recipient,
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availableTypes: methodsProvider.availableTypesForRecipient(recipient),
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preferredType: preferredType,
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forceResetManualData: false,
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);
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void reset({
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required Recipient? recipient,
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required PaymentMethodsProvider methodsProvider,
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PaymentType? preferredType,
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}) =>
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_applyState(
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recipient: recipient,
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availableTypes: methodsProvider.availableTypesForRecipient(recipient),
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preferredType: preferredType,
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forceResetManualData: true,
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);
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void selectType(PaymentType type, {bool resetManualData = false}) {
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if (_selectedType == type && (!resetManualData || _manualPaymentData == null)) {
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return;
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}
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_selectedType = type;
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if (resetManualData) {
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_manualPaymentData = null;
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}
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notifyListeners();
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}
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void setManualPaymentData(PaymentMethodData? data) {
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_manualPaymentData = data;
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notifyListeners();
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}
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PaymentType _resolveSelectedType({
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required Recipient? recipient,
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required MethodMap availableTypes,
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PaymentType? preferredType,
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}) {
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if (recipient == null) {
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return preferredType ?? _selectedType;
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}
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if (availableTypes.isEmpty) {
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return preferredType ?? PaymentType.bankAccount;
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}
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if (availableTypes.keys.contains(_selectedType)) {
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return _selectedType;
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}
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if (preferredType != null && availableTypes.keys.contains(preferredType)) {
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return preferredType;
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}
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return availableTypes.keys.first;
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}
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void _applyState({
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required Recipient? recipient,
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required MethodMap availableTypes,
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required PaymentType? preferredType,
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required bool forceResetManualData,
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}) {
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final resolvedType = _resolveSelectedType(
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recipient: recipient,
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availableTypes: availableTypes,
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preferredType: preferredType,
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);
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var hasChanges = false;
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if (_recipient != recipient) {
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_recipient = recipient;
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hasChanges = true;
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}
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if (!mapEquals(_availableTypes, availableTypes)) {
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_availableTypes = availableTypes;
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hasChanges = true;
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}
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if (resolvedType != _selectedType) {
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_selectedType = resolvedType;
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hasChanges = true;
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}
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if ((recipient != null || forceResetManualData) && _manualPaymentData != null) {
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_manualPaymentData = null;
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hasChanges = true;
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}
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if (hasChanges) notifyListeners();
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}
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}
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