multiple payout page and small fixes
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Arseni
295
frontend/pweb/lib/providers/multiple_payouts.dart
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295
frontend/pweb/lib/providers/multiple_payouts.dart
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import 'package:flutter/foundation.dart';
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import 'package:pshared/models/money.dart';
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import 'package:pshared/models/payment/payment.dart';
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import 'package:pshared/models/payment/quote/status_type.dart';
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import 'package:pshared/models/payment/wallet.dart';
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import 'package:pshared/provider/payment/multiple/provider.dart';
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import 'package:pshared/provider/payment/multiple/quotation.dart';
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import 'package:pshared/provider/payment/payments.dart';
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import 'package:pshared/utils/currency.dart';
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import 'package:pweb/models/multiple_payouts/csv_row.dart';
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import 'package:pweb/models/multiple_payouts/state.dart';
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import 'package:pweb/utils/payment/multiple_csv_parser.dart';
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import 'package:pweb/utils/payment/multiple_intent_builder.dart';
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class MultiplePayoutsProvider extends ChangeNotifier {
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final MultipleCsvParser _csvParser;
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final MultipleIntentBuilder _intentBuilder;
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MultiQuotationProvider? _quotation;
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MultiPaymentProvider? _payment;
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PaymentsProvider? _payments;
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MultiplePayoutsState _state = MultiplePayoutsState.idle;
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String? _selectedFileName;
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List<CsvPayoutRow> _rows = const <CsvPayoutRow>[];
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int _sentCount = 0;
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Exception? _error;
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MultiplePayoutsProvider({
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MultipleCsvParser? csvParser,
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MultipleIntentBuilder? intentBuilder,
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}) : _csvParser = csvParser ?? MultipleCsvParser(),
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_intentBuilder = intentBuilder ?? MultipleIntentBuilder();
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void update(
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MultiQuotationProvider quotation,
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MultiPaymentProvider payment,
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PaymentsProvider payments,
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) {
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_bindQuotation(quotation);
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_payment = payment;
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_payments = payments;
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}
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MultiplePayoutsState get state => _state;
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String? get selectedFileName => _selectedFileName;
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List<CsvPayoutRow> get rows => List.unmodifiable(_rows);
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int get sentCount => _sentCount;
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Exception? get error => _error;
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bool get isQuoting => _state == MultiplePayoutsState.quoting;
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bool get isSending => _state == MultiplePayoutsState.sending;
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bool get isBusy => isQuoting || isSending;
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bool get quoteIsLoading => _quotation?.isLoading ?? false;
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QuoteStatusType get quoteStatusType {
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final quotation = _quotation;
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if (quotation == null) return QuoteStatusType.missing;
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if (quotation.isLoading) return QuoteStatusType.loading;
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if (quotation.error != null) return QuoteStatusType.error;
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if (quotation.quotation == null) return QuoteStatusType.missing;
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if (_isQuoteExpired(quotation.quoteExpiresAt)) return QuoteStatusType.expired;
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return QuoteStatusType.active;
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}
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Duration? get quoteTimeLeft {
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final expiresAt = _quotation?.quoteExpiresAt;
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if (expiresAt == null) return null;
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return expiresAt.difference(DateTime.now().toUtc());
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}
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bool get canSend {
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if (isBusy || _rows.isEmpty) return false;
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final quoteRef = _quotation?.quotation?.quoteRef;
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return quoteRef != null && quoteRef.isNotEmpty;
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}
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Money? aggregateDebitAmountFor(Wallet? sourceWallet) {
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if (_rows.isEmpty) return null;
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return _moneyForSourceCurrency(
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_quotation?.quotation?.aggregate?.debitAmounts,
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sourceWallet,
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);
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}
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Money? get requestedSentAmount {
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if (_rows.isEmpty) return null;
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const currency = 'RUB';
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double total = 0;
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for (final row in _rows) {
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final value = double.tryParse(row.amount);
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if (value == null) return null;
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total += value;
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}
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return Money(amount: amountToString(total), currency: currency);
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}
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Money? aggregateSettlementAmountFor(Wallet? sourceWallet) {
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if (_rows.isEmpty) return null;
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return _moneyForSourceCurrency(
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_quotation?.quotation?.aggregate?.expectedSettlementAmounts,
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sourceWallet,
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);
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}
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Money? aggregateFeeAmountFor(Wallet? sourceWallet) {
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if (_rows.isEmpty) return null;
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return _moneyForSourceCurrency(
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_quotation?.quotation?.aggregate?.expectedFeeTotals,
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sourceWallet,
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);
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}
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double? aggregateFeePercentFor(Wallet? sourceWallet) {
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final debit = aggregateDebitAmountFor(sourceWallet);
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final fee = aggregateFeeAmountFor(sourceWallet);
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if (debit == null || fee == null) return null;
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final debitValue = double.tryParse(debit.amount);
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final feeValue = double.tryParse(fee.amount);
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if (debit.currency.toUpperCase() != fee.currency.toUpperCase()) return null;
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if (debitValue == null || feeValue == null || debitValue <= 0) return null;
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return (feeValue / debitValue) * 100;
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}
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Future<void> quoteFromCsv({
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required String fileName,
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required String content,
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required Wallet sourceWallet,
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}) async {
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if (isBusy) return;
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final quotation = _quotation;
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if (quotation == null) {
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_setErrorObject(
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StateError('Multiple payouts dependencies are not ready'),
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);
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return;
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}
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try {
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_setState(MultiplePayoutsState.quoting);
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_error = null;
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_sentCount = 0;
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final rows = _csvParser.parseRows(content);
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final intents = _intentBuilder.buildIntents(sourceWallet, rows);
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_selectedFileName = fileName;
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_rows = rows;
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await quotation.quotePayments(
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intents,
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metadata: <String, String>{
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'upload_filename': fileName,
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'upload_rows': rows.length.toString(),
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...?_uploadAmountMetadata(),
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},
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);
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if (quotation.error != null) {
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_setErrorObject(quotation.error!);
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}
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} catch (e) {
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_setErrorObject(e);
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} finally {
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_setState(MultiplePayoutsState.idle);
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}
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}
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void setError(Object error) {
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_setErrorObject(error);
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}
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Future<List<Payment>> send() async {
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if (isBusy) return const <Payment>[];
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final payment = _payment;
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if (payment == null) {
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_setErrorObject(
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StateError('Multiple payouts payment provider is not ready'),
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);
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return const <Payment>[];
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}
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if (!canSend) {
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_setErrorObject(
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StateError('Upload CSV and wait for quote before sending'),
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);
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return const <Payment>[];
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}
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try {
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_setState(MultiplePayoutsState.sending);
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_error = null;
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final result = await payment.pay(
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metadata: <String, String>{
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...?_selectedFileName == null
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? null
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: <String, String>{'upload_filename': _selectedFileName!},
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'upload_rows': _rows.length.toString(),
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...?_uploadAmountMetadata(),
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},
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);
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_sentCount = result.length;
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return result;
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} catch (e) {
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_setErrorObject(e);
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return const <Payment>[];
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} finally {
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_setState(MultiplePayoutsState.idle);
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}
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}
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Future<List<Payment>> sendAndStorePayments() async {
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final result = await send();
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_payments?.addPayments(result);
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return result;
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}
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void removeUploadedFile() {
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if (isBusy) return;
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_selectedFileName = null;
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_rows = const <CsvPayoutRow>[];
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_sentCount = 0;
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_error = null;
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notifyListeners();
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}
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void _setState(MultiplePayoutsState value) {
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_state = value;
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notifyListeners();
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}
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void _setErrorObject(Object error) {
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_error = error is Exception ? error : Exception(error.toString());
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notifyListeners();
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}
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void _bindQuotation(MultiQuotationProvider quotation) {
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if (identical(_quotation, quotation)) return;
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_quotation?.removeListener(_onQuotationChanged);
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_quotation = quotation;
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_quotation?.addListener(_onQuotationChanged);
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}
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void _onQuotationChanged() {
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notifyListeners();
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}
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bool _isQuoteExpired(DateTime? expiresAt) {
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if (expiresAt == null) return false;
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return expiresAt.difference(DateTime.now().toUtc()) <= Duration.zero;
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}
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Map<String, String>? _uploadAmountMetadata() {
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final sentAmount = requestedSentAmount;
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if (sentAmount == null) return null;
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return <String, String>{
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'upload_amount': sentAmount.amount,
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'upload_currency': sentAmount.currency,
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};
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}
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Money? _moneyForSourceCurrency(
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List<Money>? values,
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Wallet? sourceWallet,
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) {
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if (values == null || values.isEmpty) return null;
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if (sourceWallet != null) {
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final sourceCurrency = currencyCodeToString(sourceWallet.currency);
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for (final value in values) {
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if (value.currency.toUpperCase() == sourceCurrency.toUpperCase()) {
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return value;
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}
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}
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}
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return values.first;
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}
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@override
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void dispose() {
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_quotation?.removeListener(_onQuotationChanged);
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super.dispose();
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}
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}
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