mirror of
https://github.com/cypherstack/stack_wallet.git
synced 2024-11-18 02:07:43 +00:00
1564 lines
78 KiB
Dart
1564 lines
78 KiB
Dart
import 'dart:async';
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import 'package:decimal/decimal.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:flutter_svg/svg.dart';
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import 'package:stackwallet/models/exchange/change_now/available_floating_rate_pair.dart';
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import 'package:stackwallet/models/exchange/change_now/currency.dart';
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import 'package:stackwallet/models/exchange/change_now/fixed_rate_market.dart';
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import 'package:stackwallet/models/exchange/incomplete_exchange.dart';
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import 'package:stackwallet/notifications/show_flush_bar.dart';
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import 'package:stackwallet/pages/exchange_view/exchange_coin_selection/fixed_rate_pair_coin_selection_view.dart';
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import 'package:stackwallet/pages/exchange_view/exchange_coin_selection/floating_rate_currency_selection_view.dart';
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import 'package:stackwallet/pages/exchange_view/exchange_step_views/step_2_view.dart';
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import 'package:stackwallet/pages/exchange_view/exchange_view.dart';
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import 'package:stackwallet/pages/exchange_view/sub_widgets/exchange_rate_sheet.dart';
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import 'package:stackwallet/pages/exchange_view/sub_widgets/step_row.dart';
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import 'package:stackwallet/providers/exchange/available_currencies_state_provider.dart';
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import 'package:stackwallet/providers/exchange/available_floating_rate_pairs_state_provider.dart';
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import 'package:stackwallet/providers/exchange/change_now_provider.dart';
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import 'package:stackwallet/providers/exchange/estimate_rate_exchange_form_provider.dart';
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import 'package:stackwallet/providers/exchange/exchange_send_from_wallet_id_provider.dart';
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import 'package:stackwallet/providers/exchange/fixed_rate_exchange_form_provider.dart';
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import 'package:stackwallet/providers/exchange/fixed_rate_market_pairs_provider.dart';
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import 'package:stackwallet/providers/providers.dart';
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import 'package:stackwallet/utilities/assets.dart';
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import 'package:stackwallet/utilities/cfcolors.dart';
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import 'package:stackwallet/utilities/enums/coin_enum.dart';
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import 'package:stackwallet/utilities/enums/flush_bar_type.dart';
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import 'package:stackwallet/utilities/format.dart';
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import 'package:stackwallet/utilities/text_styles.dart';
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import 'package:stackwallet/widgets/custom_buttons/app_bar_icon_button.dart';
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import 'package:stackwallet/widgets/custom_loading_overlay.dart';
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import 'package:stackwallet/widgets/loading_indicator.dart';
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import 'package:stackwallet/widgets/stack_dialog.dart';
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import 'package:tuple/tuple.dart';
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class WalletInitiatedExchangeView extends ConsumerStatefulWidget {
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const WalletInitiatedExchangeView({
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Key? key,
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required this.walletId,
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required this.coin,
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}) : super(key: key);
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static const String routeName = "/walletInitiatedExchange";
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final String walletId;
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final Coin coin;
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@override
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ConsumerState<WalletInitiatedExchangeView> createState() =>
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_WalletInitiatedExchangeViewState();
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}
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class _WalletInitiatedExchangeViewState
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extends ConsumerState<WalletInitiatedExchangeView> {
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late final String walletId;
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late final Coin coin;
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late final TextEditingController _sendController;
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late final TextEditingController _receiveController;
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String calcSend = "";
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String calcReceive = "";
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final FocusNode _sendFocusNode = FocusNode();
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final FocusNode _receiveFocusNode = FocusNode();
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bool _swapLock = false;
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Future<void> _swap() async {
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_swapLock = true;
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_sendFocusNode.unfocus();
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_receiveFocusNode.unfocus();
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unawaited(
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showDialog<void>(
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context: context,
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barrierDismissible: false,
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builder: (_) => WillPopScope(
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onWillPop: () async => false,
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child: Container(
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color: CFColors.stackAccent.withOpacity(0.8),
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child: const CustomLoadingOverlay(
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message: "Updating exchange rate",
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eventBus: null,
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),
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),
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),
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),
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);
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if (ref.watch(prefsChangeNotifierProvider
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.select((pref) => pref.exchangeRateType)) ==
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ExchangeRateType.estimated) {
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await ref.read(estimatedRateExchangeFormProvider).swap();
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} else {
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final from = ref.read(fixedRateExchangeFormProvider).market?.from;
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final to = ref.read(fixedRateExchangeFormProvider).market?.to;
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if (to != null && from != null) {
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final markets = ref
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.read(fixedRateMarketPairsStateProvider.state)
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.state
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.where((e) => e.from == to && e.to == from);
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if (markets.isNotEmpty) {
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await ref.read(fixedRateExchangeFormProvider).swap(markets.first);
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}
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}
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}
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if (mounted) {
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Navigator.of(context).pop();
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}
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_swapLock = false;
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}
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Future<void> _showFloatingRateSelectionSheet({
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required List<Currency> currencies,
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required String excludedTicker,
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required String fromTicker,
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required void Function(Currency) onSelected,
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}) async {
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_sendFocusNode.unfocus();
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_receiveFocusNode.unfocus();
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List<AvailableFloatingRatePair> availablePairs = [];
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if (fromTicker.isEmpty ||
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fromTicker == "-" ||
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excludedTicker.isEmpty ||
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excludedTicker == "-") {
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availablePairs =
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ref.read(availableFloatingRatePairsStateProvider.state).state;
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} else if (excludedTicker == fromTicker) {
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availablePairs = ref
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.read(availableFloatingRatePairsStateProvider.state)
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.state
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.where((e) => e.fromTicker == excludedTicker)
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.toList(growable: false);
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} else {
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availablePairs = ref
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.read(availableFloatingRatePairsStateProvider.state)
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.state
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.where((e) => e.toTicker == excludedTicker)
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.toList(growable: false);
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}
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final List<Currency> tickers = currencies.where((e) {
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if (excludedTicker == fromTicker) {
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return e.ticker != excludedTicker &&
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availablePairs.where((e2) => e2.toTicker == e.ticker).isNotEmpty;
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} else {
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return e.ticker != excludedTicker &&
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availablePairs.where((e2) => e2.fromTicker == e.ticker).isNotEmpty;
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}
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}).toList(growable: false);
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final result = await Navigator.of(context).push(
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MaterialPageRoute<dynamic>(
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builder: (_) => FloatingRateCurrencySelectionView(
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currencies: tickers,
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),
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),
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);
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if (mounted && result is Currency) {
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onSelected(result);
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}
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}
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String? _fetchIconUrlFromTickerForFixedRateFlow(String? ticker) {
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if (ticker == null) return null;
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final possibleCurrencies = ref
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.read(availableChangeNowCurrenciesStateProvider.state)
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.state
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.where((e) => e.ticker.toUpperCase() == ticker.toUpperCase());
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for (final currency in possibleCurrencies) {
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if (currency.image.isNotEmpty) {
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return currency.image;
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}
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}
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return null;
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}
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Future<void> _showFixedRateSelectionSheet({
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required String excludedTicker,
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required String fromTicker,
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required void Function(String) onSelected,
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}) async {
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_sendFocusNode.unfocus();
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_receiveFocusNode.unfocus();
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List<FixedRateMarket> marketsThatPairWithExcludedTicker = [];
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if (excludedTicker == "" ||
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excludedTicker == "-" ||
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fromTicker == "" ||
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fromTicker == "-") {
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marketsThatPairWithExcludedTicker =
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ref.read(fixedRateMarketPairsStateProvider.state).state;
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} else if (excludedTicker == fromTicker) {
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marketsThatPairWithExcludedTicker = ref
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.read(fixedRateMarketPairsStateProvider.state)
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.state
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.where((e) => e.from == excludedTicker && e.to != excludedTicker)
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.toList(growable: false);
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} else {
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marketsThatPairWithExcludedTicker = ref
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.read(fixedRateMarketPairsStateProvider.state)
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.state
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.where((e) => e.to == excludedTicker && e.from != excludedTicker)
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.toList(growable: false);
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}
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final result = await Navigator.of(context).push(
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MaterialPageRoute<dynamic>(
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builder: (_) => FixedRateMarketPairCoinSelectionView(
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markets: marketsThatPairWithExcludedTicker,
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currencies:
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ref.read(availableChangeNowCurrenciesStateProvider.state).state,
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isFrom: excludedTicker != fromTicker,
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),
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),
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);
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if (mounted && result is String) {
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onSelected(result);
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}
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}
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@override
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void initState() {
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walletId = widget.walletId;
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coin = widget.coin;
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_sendController = TextEditingController();
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_receiveController = TextEditingController();
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WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
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ref.read(estimatedRateExchangeFormProvider).clearAmounts(true);
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// ref.read(fixedRateExchangeFormProvider);
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});
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_sendFocusNode.addListener(() async {
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if (!_sendFocusNode.hasFocus) {
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final newFromAmount = Decimal.tryParse(_sendController.text);
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if (newFromAmount != null) {
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if (ref.read(prefsChangeNotifierProvider).exchangeRateType ==
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ExchangeRateType.estimated) {
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await ref
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.read(estimatedRateExchangeFormProvider)
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.setFromAmountAndCalculateToAmount(newFromAmount, true);
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} else {
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await ref
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.read(fixedRateExchangeFormProvider)
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.setFromAmountAndCalculateToAmount(newFromAmount, true);
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}
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} else {
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if (ref.read(prefsChangeNotifierProvider).exchangeRateType ==
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ExchangeRateType.estimated) {
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await ref
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.read(estimatedRateExchangeFormProvider)
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.setFromAmountAndCalculateToAmount(Decimal.zero, true);
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} else {
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await ref
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.read(fixedRateExchangeFormProvider)
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.setFromAmountAndCalculateToAmount(Decimal.zero, true);
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}
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_receiveController.text = "";
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}
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}
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});
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_receiveFocusNode.addListener(() async {
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if (!_receiveFocusNode.hasFocus) {
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final newToAmount = Decimal.tryParse(_receiveController.text);
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if (newToAmount != null) {
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if (ref.read(prefsChangeNotifierProvider).exchangeRateType ==
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ExchangeRateType.estimated) {
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// await ref
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// .read(estimatedRateExchangeFormProvider)
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// .setToAmountAndCalculateFromAmount(newToAmount, true);
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} else {
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await ref
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.read(fixedRateExchangeFormProvider)
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.setToAmountAndCalculateFromAmount(newToAmount, true);
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}
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} else {
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if (ref.read(prefsChangeNotifierProvider).exchangeRateType ==
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ExchangeRateType.estimated) {
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// await ref
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// .read(estimatedRateExchangeFormProvider)
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// .setToAmountAndCalculateFromAmount(Decimal.zero, true);
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} else {
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await ref
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.read(fixedRateExchangeFormProvider)
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.setToAmountAndCalculateFromAmount(Decimal.zero, true);
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}
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_sendController.text = "";
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}
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}
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});
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super.initState();
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}
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@override
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void dispose() {
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_receiveController.dispose();
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_sendController.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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debugPrint("BUILD: $runtimeType");
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final isEstimated = ref.watch(prefsChangeNotifierProvider
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.select((pref) => pref.exchangeRateType)) ==
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ExchangeRateType.estimated;
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ref.listen(
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isEstimated
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? estimatedRateExchangeFormProvider
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.select((value) => value.toAmountString)
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: fixedRateExchangeFormProvider.select(
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(value) => value.toAmountString), (previous, String next) {
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if (!_receiveFocusNode.hasFocus) {
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_receiveController.text = next;
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debugPrint("RECEIVE AMOUNT LISTENER ACTIVATED");
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if (_swapLock) {
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_sendController.text = isEstimated
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? ref.read(estimatedRateExchangeFormProvider).fromAmountString
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: ref.read(fixedRateExchangeFormProvider).fromAmountString;
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}
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}
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});
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ref.listen(
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isEstimated
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? estimatedRateExchangeFormProvider
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.select((value) => value.fromAmountString)
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: fixedRateExchangeFormProvider.select(
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(value) => value.fromAmountString), (previous, String next) {
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if (!_sendFocusNode.hasFocus) {
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_sendController.text = next;
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debugPrint("SEND AMOUNT LISTENER ACTIVATED");
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if (_swapLock) {
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_receiveController.text = isEstimated
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? ref.read(estimatedRateExchangeFormProvider).toAmountString
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: ref.read(fixedRateExchangeFormProvider).toAmountString;
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}
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}
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});
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return Scaffold(
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backgroundColor: CFColors.almostWhite,
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appBar: AppBar(
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leading: AppBarBackButton(
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onPressed: () async {
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if (FocusScope.of(context).hasFocus) {
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FocusScope.of(context).unfocus();
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await Future<void>.delayed(const Duration(milliseconds: 75));
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}
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if (mounted) {
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Navigator.of(context).pop();
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}
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},
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),
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title: Text(
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"Exchange",
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style: STextStyles.navBarTitle,
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),
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),
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body: LayoutBuilder(
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builder: (context, constraints) {
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final width = MediaQuery.of(context).size.width - 32;
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return Padding(
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padding: const EdgeInsets.all(12),
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child: SingleChildScrollView(
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child: ConstrainedBox(
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constraints: BoxConstraints(
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minHeight: constraints.maxHeight - 24,
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),
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child: IntrinsicHeight(
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child: Padding(
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padding: const EdgeInsets.all(4),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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StepRow(
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count: 4,
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current: 0,
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width: width,
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),
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const SizedBox(
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height: 14,
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),
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Text(
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"Exchange amount",
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style: STextStyles.pageTitleH1,
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),
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const SizedBox(
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height: 8,
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),
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Text(
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"Network fees and other exchange charges are included in the rate.",
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style: STextStyles.itemSubtitle,
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),
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const SizedBox(
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height: 24,
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),
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Text(
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"You will send",
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style: STextStyles.itemSubtitle.copyWith(
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color: CFColors.neutral50,
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),
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),
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const SizedBox(
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height: 4,
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),
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TextFormField(
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focusNode: _sendFocusNode,
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controller: _sendController,
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textAlign: TextAlign.right,
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onTap: () {
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if (_sendController.text == "-") {
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_sendController.text = "";
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}
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},
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onChanged: (value) async {
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final newFromAmount = Decimal.tryParse(value);
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if (newFromAmount != null) {
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if (ref
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.read(prefsChangeNotifierProvider)
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.exchangeRateType ==
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ExchangeRateType.estimated) {
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await ref
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.read(estimatedRateExchangeFormProvider)
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.setFromAmountAndCalculateToAmount(
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newFromAmount, false);
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} else {
|
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await ref
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.read(fixedRateExchangeFormProvider)
|
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.setFromAmountAndCalculateToAmount(
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newFromAmount, false);
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}
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} else {
|
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if (ref
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.read(prefsChangeNotifierProvider)
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.exchangeRateType ==
|
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ExchangeRateType.estimated) {
|
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await ref
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.read(estimatedRateExchangeFormProvider)
|
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.setFromAmountAndCalculateToAmount(
|
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Decimal.zero, false);
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} else {
|
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await ref
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.read(fixedRateExchangeFormProvider)
|
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.setFromAmountAndCalculateToAmount(
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Decimal.zero, false);
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}
|
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_receiveController.text = "";
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}
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},
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keyboardType: const TextInputType.numberWithOptions(
|
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signed: false,
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decimal: true,
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),
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inputFormatters: [
|
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// regex to validate a crypto amount with 8 decimal places
|
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TextInputFormatter.withFunction((oldValue,
|
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newValue) =>
|
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RegExp(r'^([0-9]*[,.]?[0-9]{0,8}|[,.][0-9]{0,8})$')
|
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.hasMatch(newValue.text)
|
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? newValue
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: oldValue),
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],
|
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decoration: InputDecoration(
|
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contentPadding: const EdgeInsets.only(
|
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top: 12,
|
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right: 12,
|
|
),
|
|
hintText: "0",
|
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hintStyle: STextStyles.fieldLabel.copyWith(
|
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fontSize: 14,
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),
|
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prefixIcon: FittedBox(
|
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fit: BoxFit.scaleDown,
|
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alignment: Alignment.centerLeft,
|
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child: GestureDetector(
|
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onTap: () async {
|
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if (ref
|
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.read(prefsChangeNotifierProvider)
|
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.exchangeRateType ==
|
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ExchangeRateType.estimated) {
|
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final String fromTicker = ref
|
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.read(
|
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estimatedRateExchangeFormProvider)
|
|
.from
|
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?.ticker ??
|
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"-";
|
|
|
|
if (fromTicker.toLowerCase() ==
|
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coin.ticker.toLowerCase()) {
|
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// do not allow changing away from wallet coin
|
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return;
|
|
}
|
|
|
|
await _showFloatingRateSelectionSheet(
|
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currencies: ref
|
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.read(
|
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availableChangeNowCurrenciesStateProvider
|
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.state)
|
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.state,
|
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excludedTicker: ref
|
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.read(
|
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estimatedRateExchangeFormProvider)
|
|
.to
|
|
?.ticker ??
|
|
"-",
|
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fromTicker: fromTicker,
|
|
onSelected: (from) => ref
|
|
.read(
|
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estimatedRateExchangeFormProvider)
|
|
.updateFrom(from, true));
|
|
} else {
|
|
final toTicker = ref
|
|
.read(fixedRateExchangeFormProvider)
|
|
.market
|
|
?.to ??
|
|
"";
|
|
final fromTicker = ref
|
|
.read(fixedRateExchangeFormProvider)
|
|
.market
|
|
?.from ??
|
|
"";
|
|
|
|
if (fromTicker.toLowerCase() ==
|
|
coin.ticker.toLowerCase()) {
|
|
// do not allow changing away from wallet coin
|
|
return;
|
|
}
|
|
await _showFixedRateSelectionSheet(
|
|
excludedTicker: toTicker,
|
|
fromTicker: fromTicker,
|
|
onSelected: (selectedFromTicker) async {
|
|
try {
|
|
final market = ref
|
|
.read(
|
|
fixedRateMarketPairsStateProvider
|
|
.state)
|
|
.state
|
|
.firstWhere(
|
|
(e) =>
|
|
e.to == toTicker &&
|
|
e.from ==
|
|
selectedFromTicker,
|
|
);
|
|
|
|
await ref
|
|
.read(
|
|
fixedRateExchangeFormProvider)
|
|
.updateMarket(market, true);
|
|
} catch (e) {
|
|
unawaited(showDialog<dynamic>(
|
|
context: context,
|
|
builder: (_) => const StackDialog(
|
|
title: "Fixed rate market error",
|
|
message:
|
|
"Could not find the specified fixed rate trade pair",
|
|
),
|
|
));
|
|
return;
|
|
}
|
|
},
|
|
);
|
|
}
|
|
},
|
|
child: Container(
|
|
color: Colors.transparent,
|
|
child: Padding(
|
|
padding: const EdgeInsets.all(12),
|
|
child: Row(
|
|
children: [
|
|
Container(
|
|
width: 18,
|
|
height: 18,
|
|
decoration: BoxDecoration(
|
|
borderRadius:
|
|
BorderRadius.circular(18),
|
|
),
|
|
child: Builder(
|
|
builder: (context) {
|
|
String? image;
|
|
if (ref.watch(prefsChangeNotifierProvider
|
|
.select((value) => value
|
|
.exchangeRateType)) ==
|
|
ExchangeRateType.estimated) {
|
|
image = ref
|
|
.watch(
|
|
estimatedRateExchangeFormProvider
|
|
.select((value) =>
|
|
value.from))
|
|
?.image;
|
|
} else {
|
|
image = _fetchIconUrlFromTickerForFixedRateFlow(
|
|
ref.watch(
|
|
fixedRateExchangeFormProvider
|
|
.select((value) =>
|
|
value.market
|
|
?.from)));
|
|
}
|
|
if (image != null &&
|
|
image.isNotEmpty) {
|
|
return Center(
|
|
child: SvgPicture.network(
|
|
image,
|
|
height: 18,
|
|
placeholderBuilder: (_) =>
|
|
Container(
|
|
width: 18,
|
|
height: 18,
|
|
decoration: BoxDecoration(
|
|
color: CFColors.gray3,
|
|
borderRadius:
|
|
BorderRadius
|
|
.circular(
|
|
18,
|
|
),
|
|
),
|
|
child: ClipRRect(
|
|
borderRadius:
|
|
BorderRadius
|
|
.circular(
|
|
18,
|
|
),
|
|
child:
|
|
const LoadingIndicator(),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
} else {
|
|
return Container(
|
|
width: 18,
|
|
height: 18,
|
|
decoration: BoxDecoration(
|
|
// color: CFColors.stackAccent,
|
|
borderRadius:
|
|
BorderRadius.circular(
|
|
18),
|
|
),
|
|
child: SvgPicture.asset(
|
|
Assets.svg.circleQuestion,
|
|
width: 18,
|
|
height: 18,
|
|
color: CFColors.gray3,
|
|
),
|
|
);
|
|
}
|
|
},
|
|
),
|
|
),
|
|
const SizedBox(
|
|
width: 6,
|
|
),
|
|
Text(
|
|
isEstimated
|
|
? ref.watch(
|
|
estimatedRateExchangeFormProvider
|
|
.select((value) => value
|
|
.from?.ticker
|
|
.toUpperCase())) ??
|
|
"-"
|
|
: ref.watch(
|
|
fixedRateExchangeFormProvider
|
|
.select((value) => value
|
|
.market?.from
|
|
.toUpperCase())) ??
|
|
"-",
|
|
style:
|
|
STextStyles.smallMed14.copyWith(
|
|
color: CFColors.stackAccent,
|
|
),
|
|
),
|
|
const SizedBox(
|
|
width: 6,
|
|
),
|
|
Builder(builder: (context) {
|
|
final ticker = isEstimated
|
|
? ref.watch(
|
|
estimatedRateExchangeFormProvider
|
|
.select((value) =>
|
|
value.from
|
|
?.ticker)) ??
|
|
"-"
|
|
: ref.watch(
|
|
fixedRateExchangeFormProvider
|
|
.select((value) =>
|
|
value.market
|
|
?.from)) ??
|
|
"-";
|
|
if (ticker.toLowerCase() ==
|
|
coin.ticker.toLowerCase()) {
|
|
return Container();
|
|
}
|
|
return SvgPicture.asset(
|
|
Assets.svg.chevronDown,
|
|
width: 5,
|
|
height: 2.5,
|
|
color: CFColors.stackAccent,
|
|
);
|
|
}),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
const SizedBox(
|
|
height: 4,
|
|
),
|
|
Stack(
|
|
children: [
|
|
Positioned.fill(
|
|
child: Align(
|
|
alignment: Alignment.bottomLeft,
|
|
child: Text(
|
|
"You will receive",
|
|
style: STextStyles.itemSubtitle.copyWith(
|
|
color: CFColors.neutral50,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
Center(
|
|
child: GestureDetector(
|
|
onTap: () async {
|
|
await _swap();
|
|
},
|
|
child: Padding(
|
|
padding: const EdgeInsets.all(4),
|
|
child: SvgPicture.asset(
|
|
Assets.svg.swap,
|
|
width: 20,
|
|
height: 20,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
Positioned.fill(
|
|
child: Align(
|
|
alignment: Alignment.topRight,
|
|
child: Text(
|
|
isEstimated
|
|
? ref.watch(
|
|
estimatedRateExchangeFormProvider
|
|
.select((value) =>
|
|
value.minimumSendWarning))
|
|
: ref.watch(fixedRateExchangeFormProvider
|
|
.select((value) =>
|
|
value.sendAmountWarning)),
|
|
style: STextStyles.errorSmall,
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
const SizedBox(
|
|
height: 4,
|
|
),
|
|
TextFormField(
|
|
focusNode: _receiveFocusNode,
|
|
controller: _receiveController,
|
|
readOnly: ref
|
|
.read(prefsChangeNotifierProvider)
|
|
.exchangeRateType ==
|
|
ExchangeRateType.estimated,
|
|
onTap: () {
|
|
if (_receiveController.text == "-") {
|
|
_receiveController.text = "";
|
|
}
|
|
},
|
|
onChanged: (value) async {
|
|
final newToAmount = Decimal.tryParse(value);
|
|
if (newToAmount != null) {
|
|
if (ref
|
|
.read(prefsChangeNotifierProvider)
|
|
.exchangeRateType ==
|
|
ExchangeRateType.estimated) {
|
|
// await ref
|
|
// .read(estimatedRateExchangeFormProvider)
|
|
// .setToAmountAndCalculateFromAmount(
|
|
// newToAmount, false);
|
|
} else {
|
|
await ref
|
|
.read(fixedRateExchangeFormProvider)
|
|
.setToAmountAndCalculateFromAmount(
|
|
newToAmount, false);
|
|
}
|
|
} else {
|
|
if (ref
|
|
.read(prefsChangeNotifierProvider)
|
|
.exchangeRateType ==
|
|
ExchangeRateType.estimated) {
|
|
// await ref
|
|
// .read(estimatedRateExchangeFormProvider)
|
|
// .setToAmountAndCalculateFromAmount(
|
|
// Decimal.zero, false);
|
|
} else {
|
|
await ref
|
|
.read(fixedRateExchangeFormProvider)
|
|
.setToAmountAndCalculateFromAmount(
|
|
Decimal.zero, false);
|
|
}
|
|
_sendController.text = "";
|
|
}
|
|
},
|
|
textAlign: TextAlign.right,
|
|
keyboardType: const TextInputType.numberWithOptions(
|
|
signed: false,
|
|
decimal: true,
|
|
),
|
|
inputFormatters: [
|
|
// regex to validate a crypto amount with 8 decimal places
|
|
TextInputFormatter.withFunction((oldValue,
|
|
newValue) =>
|
|
RegExp(r'^([0-9]*[,.]?[0-9]{0,8}|[,.][0-9]{0,8})$')
|
|
.hasMatch(newValue.text)
|
|
? newValue
|
|
: oldValue),
|
|
],
|
|
decoration: InputDecoration(
|
|
contentPadding: const EdgeInsets.only(
|
|
top: 12,
|
|
right: 12,
|
|
),
|
|
hintText: "0",
|
|
hintStyle: STextStyles.fieldLabel.copyWith(
|
|
fontSize: 14,
|
|
),
|
|
prefixIcon: FittedBox(
|
|
fit: BoxFit.scaleDown,
|
|
child: GestureDetector(
|
|
onTap: () async {
|
|
if (ref
|
|
.read(prefsChangeNotifierProvider)
|
|
.exchangeRateType ==
|
|
ExchangeRateType.estimated) {
|
|
final toTicker = ref
|
|
.read(
|
|
estimatedRateExchangeFormProvider)
|
|
.to
|
|
?.ticker ??
|
|
"";
|
|
|
|
if (toTicker.toLowerCase() ==
|
|
coin.ticker.toLowerCase()) {
|
|
// do not allow changing away from wallet coin
|
|
return;
|
|
}
|
|
|
|
await _showFloatingRateSelectionSheet(
|
|
currencies: ref
|
|
.read(
|
|
availableChangeNowCurrenciesStateProvider
|
|
.state)
|
|
.state,
|
|
excludedTicker: ref
|
|
.read(
|
|
estimatedRateExchangeFormProvider)
|
|
.from
|
|
?.ticker ??
|
|
"",
|
|
fromTicker: ref
|
|
.read(
|
|
estimatedRateExchangeFormProvider)
|
|
.from
|
|
?.ticker ??
|
|
"",
|
|
onSelected: (to) => ref
|
|
.read(
|
|
estimatedRateExchangeFormProvider)
|
|
.updateTo(to, true));
|
|
} else {
|
|
final fromTicker = ref
|
|
.read(fixedRateExchangeFormProvider)
|
|
.market
|
|
?.from ??
|
|
"";
|
|
final toTicker = ref
|
|
.read(fixedRateExchangeFormProvider)
|
|
.market
|
|
?.to ??
|
|
"";
|
|
if (toTicker.toLowerCase() ==
|
|
coin.ticker.toLowerCase()) {
|
|
// do not allow changing away from wallet coin
|
|
return;
|
|
}
|
|
await _showFixedRateSelectionSheet(
|
|
excludedTicker: fromTicker,
|
|
fromTicker: fromTicker,
|
|
onSelected: (selectedToTicker) async {
|
|
try {
|
|
final market = ref
|
|
.read(
|
|
fixedRateMarketPairsStateProvider
|
|
.state)
|
|
.state
|
|
.firstWhere(
|
|
(e) =>
|
|
e.to == selectedToTicker &&
|
|
e.from == fromTicker,
|
|
);
|
|
|
|
await ref
|
|
.read(
|
|
fixedRateExchangeFormProvider)
|
|
.updateMarket(market, true);
|
|
} catch (e) {
|
|
unawaited(showDialog<dynamic>(
|
|
context: context,
|
|
builder: (_) => const StackDialog(
|
|
title: "Fixed rate market error",
|
|
message:
|
|
"Could not find the specified fixed rate trade pair",
|
|
),
|
|
));
|
|
return;
|
|
}
|
|
},
|
|
);
|
|
}
|
|
},
|
|
child: Container(
|
|
color: Colors.transparent,
|
|
child: Padding(
|
|
padding: const EdgeInsets.all(12),
|
|
child: Row(
|
|
children: [
|
|
Container(
|
|
width: 18,
|
|
height: 18,
|
|
decoration: BoxDecoration(
|
|
borderRadius:
|
|
BorderRadius.circular(18),
|
|
),
|
|
child: Builder(
|
|
builder: (context) {
|
|
String? image;
|
|
if (ref.watch(prefsChangeNotifierProvider
|
|
.select((value) => value
|
|
.exchangeRateType)) ==
|
|
ExchangeRateType.estimated) {
|
|
image = ref
|
|
.watch(
|
|
estimatedRateExchangeFormProvider
|
|
.select((value) =>
|
|
value.to))
|
|
?.image;
|
|
} else {
|
|
image = _fetchIconUrlFromTickerForFixedRateFlow(
|
|
ref.watch(
|
|
fixedRateExchangeFormProvider
|
|
.select((value) =>
|
|
value.market
|
|
?.to)));
|
|
}
|
|
if (image != null &&
|
|
image.isNotEmpty) {
|
|
return Center(
|
|
child: SvgPicture.network(
|
|
image,
|
|
height: 18,
|
|
placeholderBuilder: (_) =>
|
|
Container(
|
|
width: 18,
|
|
height: 18,
|
|
decoration: BoxDecoration(
|
|
color: CFColors.gray3,
|
|
borderRadius:
|
|
BorderRadius
|
|
.circular(18),
|
|
),
|
|
child: ClipRRect(
|
|
borderRadius:
|
|
BorderRadius
|
|
.circular(
|
|
18,
|
|
),
|
|
child:
|
|
const LoadingIndicator(),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
} else {
|
|
return Container(
|
|
width: 18,
|
|
height: 18,
|
|
decoration: BoxDecoration(
|
|
// color: CFColors.stackAccent,
|
|
borderRadius:
|
|
BorderRadius.circular(
|
|
18),
|
|
),
|
|
child: SvgPicture.asset(
|
|
Assets.svg.circleQuestion,
|
|
width: 18,
|
|
height: 18,
|
|
color: CFColors.gray3,
|
|
),
|
|
);
|
|
}
|
|
},
|
|
),
|
|
),
|
|
const SizedBox(
|
|
width: 6,
|
|
),
|
|
Text(
|
|
isEstimated
|
|
? ref.watch(
|
|
estimatedRateExchangeFormProvider
|
|
.select((value) => value
|
|
.to?.ticker
|
|
.toUpperCase())) ??
|
|
"-"
|
|
: ref.watch(
|
|
fixedRateExchangeFormProvider
|
|
.select((value) => value
|
|
.market?.to
|
|
.toUpperCase())) ??
|
|
"-",
|
|
style:
|
|
STextStyles.smallMed14.copyWith(
|
|
color: CFColors.stackAccent,
|
|
),
|
|
),
|
|
const SizedBox(
|
|
width: 6,
|
|
),
|
|
Builder(builder: (context) {
|
|
final ticker = isEstimated
|
|
? ref.watch(
|
|
estimatedRateExchangeFormProvider
|
|
.select((value) =>
|
|
value.to
|
|
?.ticker)) ??
|
|
"-"
|
|
: ref.watch(
|
|
fixedRateExchangeFormProvider
|
|
.select((value) =>
|
|
value.market
|
|
?.to)) ??
|
|
"-";
|
|
if (ticker.toLowerCase() ==
|
|
coin.ticker.toLowerCase()) {
|
|
return Container();
|
|
}
|
|
return SvgPicture.asset(
|
|
Assets.svg.chevronDown,
|
|
width: 5,
|
|
height: 2.5,
|
|
color: CFColors.stackAccent,
|
|
);
|
|
}),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
// if (ref
|
|
// .watch(exchangeFormSateProvider
|
|
// .select((value) => value.minimumReceiveWarning))
|
|
// .isNotEmpty)
|
|
// SizedBox(
|
|
// height: 4,
|
|
// ),
|
|
//
|
|
// if (ref
|
|
// .watch(exchangeFormSateProvider
|
|
// .select((value) => value.minimumReceiveWarning))
|
|
// .isNotEmpty)
|
|
// Row(
|
|
// children: [
|
|
// Spacer(),
|
|
// Text(
|
|
// ref.watch(exchangeFormSateProvider.select(
|
|
// (value) => value.minimumReceiveWarning)),
|
|
// style: STextStyles.errorSmall,
|
|
// ),
|
|
// ],
|
|
// ),
|
|
|
|
const SizedBox(
|
|
height: 12,
|
|
),
|
|
RateInfo(
|
|
onChanged: (rateType) async {
|
|
_receiveFocusNode.unfocus();
|
|
_sendFocusNode.unfocus();
|
|
switch (rateType) {
|
|
case ExchangeRateType.estimated:
|
|
final market = ref
|
|
.read(fixedRateExchangeFormProvider)
|
|
.market;
|
|
final fromTicker = market?.from ?? "";
|
|
final toTicker = market?.to ?? "";
|
|
if (!(fromTicker.isEmpty ||
|
|
toTicker.isEmpty ||
|
|
toTicker == "-" ||
|
|
fromTicker == "-")) {
|
|
final available = ref
|
|
.read(
|
|
availableFloatingRatePairsStateProvider
|
|
.state)
|
|
.state
|
|
.where((e) =>
|
|
e.toTicker == toTicker &&
|
|
e.fromTicker == fromTicker);
|
|
if (available.isNotEmpty) {
|
|
final availableCurrencies = ref
|
|
.read(
|
|
availableChangeNowCurrenciesStateProvider
|
|
.state)
|
|
.state
|
|
.where((e) =>
|
|
e.ticker == fromTicker ||
|
|
e.ticker == toTicker);
|
|
if (availableCurrencies.length > 1) {
|
|
final from =
|
|
availableCurrencies.firstWhere(
|
|
(e) => e.ticker == fromTicker);
|
|
final to = availableCurrencies.firstWhere(
|
|
(e) => e.ticker == toTicker);
|
|
|
|
await ref
|
|
.read(
|
|
estimatedRateExchangeFormProvider)
|
|
.updateTo(to, false);
|
|
await ref
|
|
.read(
|
|
estimatedRateExchangeFormProvider)
|
|
.updateFrom(from, true);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
unawaited(showFloatingFlushBar(
|
|
type: FlushBarType.warning,
|
|
message:
|
|
"Estimated rate trade pair \"$fromTicker-$toTicker\" unavailable. Reverting to last estimated rate pair.",
|
|
context: context,
|
|
));
|
|
break;
|
|
case ExchangeRateType.fixed:
|
|
final fromTicker = ref
|
|
.read(estimatedRateExchangeFormProvider)
|
|
.from
|
|
?.ticker ??
|
|
"";
|
|
final toTicker = ref
|
|
.read(estimatedRateExchangeFormProvider)
|
|
.to
|
|
?.ticker ??
|
|
"";
|
|
if (!(fromTicker.isEmpty ||
|
|
toTicker.isEmpty ||
|
|
toTicker == "-" ||
|
|
fromTicker == "-")) {
|
|
FixedRateMarket? market;
|
|
try {
|
|
market = ref
|
|
.read(fixedRateMarketPairsStateProvider
|
|
.state)
|
|
.state
|
|
.firstWhere((e) =>
|
|
e.from == fromTicker &&
|
|
e.to == toTicker);
|
|
} catch (_) {
|
|
market = null;
|
|
}
|
|
await ref
|
|
.read(fixedRateExchangeFormProvider)
|
|
.updateMarket(market, true);
|
|
await ref
|
|
.read(fixedRateExchangeFormProvider)
|
|
.setFromAmountAndCalculateToAmount(
|
|
Decimal.tryParse(
|
|
_sendController.text) ??
|
|
Decimal.zero,
|
|
true,
|
|
);
|
|
return;
|
|
}
|
|
unawaited(showFloatingFlushBar(
|
|
type: FlushBarType.warning,
|
|
message:
|
|
"Fixed rate trade pair \"$fromTicker-$toTicker\" unavailable. Reverting to last fixed rate pair.",
|
|
context: context,
|
|
));
|
|
break;
|
|
}
|
|
},
|
|
),
|
|
const SizedBox(
|
|
height: 12,
|
|
),
|
|
const Spacer(),
|
|
TextButton(
|
|
style:
|
|
Theme.of(context).textButtonTheme.style?.copyWith(
|
|
backgroundColor:
|
|
MaterialStateProperty.all<Color>(
|
|
((ref
|
|
.read(
|
|
prefsChangeNotifierProvider)
|
|
.exchangeRateType ==
|
|
ExchangeRateType.estimated)
|
|
? ref.watch(
|
|
estimatedRateExchangeFormProvider
|
|
.select((value) =>
|
|
value.canExchange))
|
|
: ref.watch(
|
|
fixedRateExchangeFormProvider
|
|
.select((value) =>
|
|
value.canExchange)))
|
|
? CFColors.stackAccent
|
|
: CFColors.buttonGray,
|
|
),
|
|
),
|
|
onPressed: ((ref
|
|
.read(prefsChangeNotifierProvider)
|
|
.exchangeRateType ==
|
|
ExchangeRateType.estimated)
|
|
? ref.watch(estimatedRateExchangeFormProvider
|
|
.select((value) => value.canExchange))
|
|
: ref.watch(fixedRateExchangeFormProvider
|
|
.select((value) => value.canExchange)))
|
|
? () async {
|
|
final isEstimated = ref
|
|
.read(prefsChangeNotifierProvider)
|
|
.exchangeRateType ==
|
|
ExchangeRateType.estimated;
|
|
|
|
final ft = isEstimated
|
|
? ref
|
|
.read(
|
|
estimatedRateExchangeFormProvider)
|
|
.from
|
|
?.ticker ??
|
|
""
|
|
: ref
|
|
.read(
|
|
fixedRateExchangeFormProvider)
|
|
.market
|
|
?.from ??
|
|
"";
|
|
|
|
final manager = ref
|
|
.read(walletsChangeNotifierProvider)
|
|
.getManager(walletId);
|
|
final sendAmount = Decimal.parse(ref
|
|
.read(estimatedRateExchangeFormProvider)
|
|
.fromAmountString);
|
|
|
|
if (ft.toLowerCase() ==
|
|
coin.ticker.toLowerCase()) {
|
|
bool shouldPop = false;
|
|
bool wasPopped = false;
|
|
unawaited(showDialog<void>(
|
|
context: context,
|
|
builder: (_) => WillPopScope(
|
|
onWillPop: () async {
|
|
if (shouldPop) {
|
|
wasPopped = true;
|
|
}
|
|
return shouldPop;
|
|
},
|
|
child: const CustomLoadingOverlay(
|
|
message: "Checking available balance",
|
|
eventBus: null,
|
|
),
|
|
),
|
|
));
|
|
|
|
final availableBalance =
|
|
await manager.availableBalance;
|
|
|
|
final feeObject = await manager.fees;
|
|
|
|
final fee = await manager.estimateFeeFor(
|
|
Format.decimalAmountToSatoshis(
|
|
sendAmount),
|
|
feeObject.medium);
|
|
|
|
shouldPop = true;
|
|
if (!wasPopped && mounted) {
|
|
Navigator.of(context).pop();
|
|
}
|
|
|
|
if (availableBalance <
|
|
sendAmount +
|
|
Format.satoshisToAmount(fee)) {
|
|
unawaited(showDialog<void>(
|
|
context: context,
|
|
builder: (_) => StackOkDialog(
|
|
title: "Insufficient balance",
|
|
message:
|
|
"Current ${coin.prettyName} wallet does not have enough ${coin.ticker} for this trade",
|
|
),
|
|
));
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (isEstimated) {
|
|
final fromTicker = ref
|
|
.read(
|
|
estimatedRateExchangeFormProvider)
|
|
.from
|
|
?.ticker ??
|
|
"";
|
|
final toTicker = ref
|
|
.read(
|
|
estimatedRateExchangeFormProvider)
|
|
.to
|
|
?.ticker ??
|
|
"";
|
|
|
|
bool isAvailable = false;
|
|
final availableFloatingPairs = ref
|
|
.read(
|
|
availableFloatingRatePairsStateProvider
|
|
.state)
|
|
.state;
|
|
for (final pair in availableFloatingPairs) {
|
|
if (pair.fromTicker == fromTicker &&
|
|
pair.toTicker == toTicker) {
|
|
isAvailable = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!isAvailable) {
|
|
unawaited(showDialog<dynamic>(
|
|
context: context,
|
|
barrierDismissible: true,
|
|
builder: (_) => StackDialog(
|
|
title:
|
|
"Selected trade pair unavailable",
|
|
message:
|
|
"The $fromTicker - $toTicker market is currently disabled for estimated/floating rate trades",
|
|
),
|
|
));
|
|
return;
|
|
}
|
|
|
|
final rateType = ref
|
|
.read(prefsChangeNotifierProvider)
|
|
.exchangeRateType;
|
|
|
|
final response = await ref
|
|
.read(changeNowProvider)
|
|
.getEstimatedExchangeAmount(
|
|
fromTicker: fromTicker,
|
|
toTicker: toTicker,
|
|
fromAmount: sendAmount,
|
|
);
|
|
|
|
if (response.value == null) {
|
|
unawaited(showDialog<dynamic>(
|
|
context: context,
|
|
barrierDismissible: true,
|
|
builder: (_) => StackDialog(
|
|
title:
|
|
"Failed to update trade estimate",
|
|
message:
|
|
response.exception?.toString(),
|
|
),
|
|
));
|
|
return;
|
|
}
|
|
|
|
String rate =
|
|
"1 ${fromTicker.toUpperCase()} ~${(response.value!.estimatedAmount / sendAmount).toDecimal(scaleOnInfinitePrecision: 8).toStringAsFixed(8)} ${toTicker.toUpperCase()}";
|
|
|
|
final model = IncompleteExchangeModel(
|
|
sendTicker: fromTicker.toUpperCase(),
|
|
receiveTicker: toTicker.toUpperCase(),
|
|
rateInfo: rate,
|
|
sendAmount: sendAmount,
|
|
receiveAmount:
|
|
response.value!.estimatedAmount,
|
|
rateId: response.value!.rateId,
|
|
rateType: rateType,
|
|
);
|
|
|
|
if (mounted) {
|
|
ref
|
|
.read(
|
|
exchangeSendFromWalletIdStateProvider
|
|
.state)
|
|
.state = Tuple2(walletId, coin);
|
|
unawaited(Navigator.of(context).pushNamed(
|
|
Step2View.routeName,
|
|
arguments: model,
|
|
));
|
|
}
|
|
} else {
|
|
final fromTicker = ref
|
|
.read(fixedRateExchangeFormProvider)
|
|
.market
|
|
?.from ??
|
|
"";
|
|
final toTicker = ref
|
|
.read(fixedRateExchangeFormProvider)
|
|
.market
|
|
?.to ??
|
|
"";
|
|
|
|
final sendAmount = Decimal.parse(ref
|
|
.read(fixedRateExchangeFormProvider)
|
|
.fromAmountString);
|
|
|
|
final rateType = ref
|
|
.read(prefsChangeNotifierProvider)
|
|
.exchangeRateType;
|
|
|
|
final response = await ref
|
|
.read(changeNowProvider)
|
|
.getEstimatedFixedRateExchangeAmount(
|
|
fromTicker: fromTicker,
|
|
toTicker: toTicker,
|
|
fromAmount: sendAmount,
|
|
useRateId: true,
|
|
);
|
|
|
|
bool? shouldCancel;
|
|
|
|
if (response.value == null) {
|
|
unawaited(showDialog<dynamic>(
|
|
context: context,
|
|
barrierDismissible: true,
|
|
builder: (_) => StackDialog(
|
|
title:
|
|
"Failed to update trade estimate",
|
|
message:
|
|
response.exception?.toString(),
|
|
),
|
|
));
|
|
return;
|
|
} else if (response.value!.warningMessage !=
|
|
null &&
|
|
response.value!.warningMessage!
|
|
.isNotEmpty) {
|
|
shouldCancel = await showDialog<bool?>(
|
|
context: context,
|
|
barrierDismissible: true,
|
|
builder: (_) => StackDialog(
|
|
title:
|
|
"Failed to update trade estimate",
|
|
message:
|
|
"${response.value!.warningMessage!}\n\nDo you want to attempt trade anyways?",
|
|
leftButton: TextButton(
|
|
style: Theme.of(context)
|
|
.textButtonTheme
|
|
.style
|
|
?.copyWith(
|
|
backgroundColor:
|
|
MaterialStateProperty.all<
|
|
Color>(
|
|
CFColors.buttonGray,
|
|
),
|
|
),
|
|
child: Text(
|
|
"Cancel",
|
|
style: STextStyles.itemSubtitle12,
|
|
),
|
|
onPressed: () {
|
|
// notify return to cancel
|
|
Navigator.of(context).pop(true);
|
|
},
|
|
),
|
|
rightButton: TextButton(
|
|
style: Theme.of(context)
|
|
.textButtonTheme
|
|
.style
|
|
?.copyWith(
|
|
backgroundColor:
|
|
MaterialStateProperty.all<
|
|
Color>(
|
|
CFColors.stackAccent,
|
|
),
|
|
),
|
|
child: Text(
|
|
"Attempt",
|
|
style: STextStyles.button,
|
|
),
|
|
onPressed: () {
|
|
// continue and try to attempt trade
|
|
Navigator.of(context).pop(false);
|
|
},
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
if (shouldCancel is bool && shouldCancel) {
|
|
return;
|
|
}
|
|
|
|
String rate =
|
|
"1 $fromTicker ~${ref.read(fixedRateExchangeFormProvider).market!.rate.toStringAsFixed(8)} $toTicker";
|
|
|
|
final model = IncompleteExchangeModel(
|
|
sendTicker: fromTicker,
|
|
receiveTicker: toTicker,
|
|
rateInfo: rate,
|
|
sendAmount: sendAmount,
|
|
receiveAmount:
|
|
response.value!.estimatedAmount,
|
|
rateId: response.value!.rateId,
|
|
rateType: rateType,
|
|
);
|
|
|
|
if (mounted) {
|
|
ref
|
|
.read(
|
|
exchangeSendFromWalletIdStateProvider
|
|
.state)
|
|
.state = Tuple2(walletId, coin);
|
|
unawaited(Navigator.of(context).pushNamed(
|
|
Step2View.routeName,
|
|
arguments: model,
|
|
));
|
|
}
|
|
}
|
|
}
|
|
: null,
|
|
child: Text(
|
|
"Next",
|
|
style: STextStyles.button,
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
);
|
|
},
|
|
),
|
|
);
|
|
}
|
|
}
|