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136 lines
3.8 KiB
136 lines
3.8 KiB
import 'dart:async';
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import 'package:cake_wallet/core/wallet_base.dart';
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import 'package:cake_wallet/entities/crypto_currency.dart';
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import 'package:cake_wallet/exchange/changenow/changenow_exchange_provider.dart';
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import 'package:cake_wallet/exchange/exchange_provider.dart';
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import 'package:cake_wallet/exchange/exchange_provider_description.dart';
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import 'package:cake_wallet/exchange/morphtoken/morphtoken_exchange_provider.dart';
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import 'package:cake_wallet/exchange/trade.dart';
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import 'package:cake_wallet/exchange/xmrto/xmrto_exchange_provider.dart';
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import 'package:cake_wallet/store/dashboard/trades_store.dart';
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import 'package:cake_wallet/view_model/send/send_view_model.dart';
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import 'package:hive/hive.dart';
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import 'package:mobx/mobx.dart';
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import 'package:cake_wallet/src/screens/exchange_trade/exchange_trade_item.dart';
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import 'package:cake_wallet/generated/i18n.dart';
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part 'exchange_trade_view_model.g.dart';
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class ExchangeTradeViewModel = ExchangeTradeViewModelBase
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with _$ExchangeTradeViewModel;
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abstract class ExchangeTradeViewModelBase with Store {
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ExchangeTradeViewModelBase(
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{this.wallet, this.trades, this.tradesStore, this.sendViewModel}) {
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trade = tradesStore.trade;
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isSendable = trade.from == wallet.currency ||
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trade.provider == ExchangeProviderDescription.xmrto;
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switch (trade.provider) {
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case ExchangeProviderDescription.xmrto:
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_provider = XMRTOExchangeProvider();
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break;
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case ExchangeProviderDescription.changeNow:
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_provider = ChangeNowExchangeProvider();
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break;
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case ExchangeProviderDescription.morphToken:
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_provider = MorphTokenExchangeProvider(trades: trades);
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break;
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}
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items = ObservableList<ExchangeTradeItem>();
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_updateItems();
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_updateTrade();
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timer = Timer.periodic(Duration(seconds: 20), (_) async => _updateTrade());
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}
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final WalletBase wallet;
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final Box<Trade> trades;
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final TradesStore tradesStore;
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final SendViewModel sendViewModel;
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@observable
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Trade trade;
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@observable
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bool isSendable;
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@computed
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String get extraInfo => trade.from == CryptoCurrency.xlm
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? '\n\n' + S.current.xlm_extra_info
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: trade.from == CryptoCurrency.xrp
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? '\n\n' + S.current.xrp_extra_info
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: '';
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@observable
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ObservableList<ExchangeTradeItem> items;
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ExchangeProvider _provider;
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Timer timer;
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@action
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Future confirmSending() async {
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if (!isSendable) {
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return;
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}
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sendViewModel.clearSendItemList();
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final item = sendViewModel.sendItemList.first;
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item.address = trade.inputAddress;
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item.setCryptoAmount(trade.amount);
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await sendViewModel.createTransaction();
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}
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@action
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Future<void> _updateTrade() async {
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try {
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final updatedTrade = await _provider.findTradeById(id: trade.id);
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if (updatedTrade.createdAt == null && trade.createdAt != null) {
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updatedTrade.createdAt = trade.createdAt;
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}
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trade = updatedTrade;
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_updateItems();
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} catch (e) {
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print(e.toString());
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}
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}
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void _updateItems() {
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items?.clear();
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items.add(ExchangeTradeItem(
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title: S.current.id, data: '${trade.id}', isCopied: true));
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if (trade.extraId != null) {
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final title = trade.from == CryptoCurrency.xrp
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? S.current.destination_tag
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: trade.from == CryptoCurrency.xlm
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? S.current.memo
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: S.current.extra_id;
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items.add(ExchangeTradeItem(
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title: title, data: '${trade.extraId}', isCopied: false));
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}
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items.addAll([
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ExchangeTradeItem(
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title: S.current.amount, data: '${trade.amount}', isCopied: false),
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ExchangeTradeItem(
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title: S.current.status, data: '${trade.state}', isCopied: false),
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ExchangeTradeItem(
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title: S.current.widgets_address + ':',
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data: trade.inputAddress,
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isCopied: true),
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]);
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}
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}
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