127 lines
4.4 KiB
Dart
127 lines
4.4 KiB
Dart
import 'dart:convert';
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import 'package:flutter/foundation.dart';
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import 'package:logging/logging.dart';
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import 'package:uuid/uuid.dart';
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import 'package:pshared/api/requests/payment/quote.dart';
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import 'package:pshared/controllers/balance_mask/wallets.dart';
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import 'package:pshared/data/mapper/payment/intent/payment.dart';
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import 'package:pshared/models/asset.dart';
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import 'package:pshared/models/payment/intent.dart';
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import 'package:pshared/models/payment/quote/quote.dart';
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import 'package:pshared/models/money.dart';
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import 'package:pshared/provider/organizations.dart';
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import 'package:pshared/provider/payment/amount.dart';
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import 'package:pshared/provider/payment/flow.dart';
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import 'package:pshared/provider/recipient/provider.dart';
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import 'package:pshared/provider/recipient/pmethods.dart';
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import 'package:pshared/provider/resource.dart';
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import 'package:pshared/provider/payment/quotation/intent_builder.dart';
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import 'package:pshared/service/payment/quotation.dart';
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import 'package:pshared/utils/exception.dart';
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class QuotationProvider extends ChangeNotifier {
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static final _logger = Logger('provider.payment.quotation');
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Resource<PaymentQuote> _quotation = Resource(data: null, isLoading: false, error: null);
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late OrganizationsProvider _organizations;
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bool _isLoaded = false;
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PaymentIntent? _lastIntent;
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final QuotationIntentBuilder _intentBuilder = QuotationIntentBuilder();
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void update(
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OrganizationsProvider venue,
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PaymentAmountProvider payment,
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WalletsController wallets,
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PaymentFlowProvider flow,
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RecipientsProvider recipients,
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PaymentMethodsProvider _,
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) {
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_organizations = venue;
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final intent = _intentBuilder.build(
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payment: payment,
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wallets: wallets,
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flow: flow,
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recipients: recipients,
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);
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if (intent == null) return;
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final intentKey = _buildIntentKey(intent);
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final lastIntent = _lastIntent;
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if (lastIntent != null && intentKey == _buildIntentKey(lastIntent)) return;
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getQuotation(intent, idempotencyKey: intentKey);
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}
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PaymentQuote? get quotation => _quotation.data;
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bool get isLoading => _quotation.isLoading;
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Exception? get error => _quotation.error;
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bool get canRefresh => _lastIntent != null;
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bool get isReady => _isLoaded && !_quotation.isLoading && _quotation.error == null;
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DateTime? get quoteExpiresAt {
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final expiresAtUnixMs = quotation?.fxQuote?.expiresAtUnixMs;
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if (expiresAtUnixMs == null) return null;
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return DateTime.fromMillisecondsSinceEpoch(expiresAtUnixMs, isUtc: true);
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}
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Asset? get fee => _assetFromMoney(quotation?.expectedFeeTotal);
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Asset? get total => _assetFromMoney(quotation?.debitAmount);
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Asset? get recipientGets => _assetFromMoney(quotation?.expectedSettlementAmount);
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Asset? _assetFromMoney(Money? money) {
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if (money == null) return null;
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return createAsset(money.currency, money.amount);
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}
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void _setResource(Resource<PaymentQuote> quotation) {
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_quotation = quotation;
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notifyListeners();
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}
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Future<PaymentQuote?> refreshQuotation() async {
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final intent = _lastIntent;
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if (intent == null) return null;
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return getQuotation(intent, idempotencyKey: _buildIntentKey(intent));
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}
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Future<PaymentQuote?> getQuotation(PaymentIntent intent, {String? idempotencyKey}) async {
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if (!_organizations.isOrganizationSet) throw StateError('Organization is not set');
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_lastIntent = intent;
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final intentKey = idempotencyKey ?? _buildIntentKey(intent);
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try {
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_setResource(_quotation.copyWith(isLoading: true, error: null));
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final response = await QuotationService.getQuotation(
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_organizations.current.id,
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QuotePaymentRequest(
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idempotencyKey: intentKey,
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intent: intent.toDTO(),
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),
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);
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_isLoaded = true;
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_setResource(_quotation.copyWith(data: response, isLoading: false, error: null));
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} catch (e, st) {
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_logger.warning('Failed to get quotation', e, st);
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_setResource(_quotation.copyWith(
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data: null,
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error: toException(e),
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isLoading: false,
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));
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}
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return _quotation.data;
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}
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void reset() {
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_isLoaded = false;
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_lastIntent = null;
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_setResource(Resource(data: null, isLoading: false, error: null));
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}
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String _buildIntentKey(PaymentIntent intent) {
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final payload = jsonEncode(intent.toDTO().toJson());
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return Uuid().v5(Namespace.url.value, 'quote:$payload');
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}
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}
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