diff --git a/lib/src/stores/exchange/exchange_store.dart b/lib/src/stores/exchange/exchange_store.dart index 4e65048b0..8f0526050 100644 --- a/lib/src/stores/exchange/exchange_store.dart +++ b/lib/src/stores/exchange/exchange_store.dart @@ -15,6 +15,8 @@ import 'package:cake_wallet/src/stores/wallet/wallet_store.dart'; import 'package:cake_wallet/src/stores/exchange/exchange_trade_state.dart'; import 'package:cake_wallet/src/stores/exchange/limits_state.dart'; import 'package:cake_wallet/generated/i18n.dart'; +import 'package:cake_wallet/src/domain/exchange/limits.dart'; +import 'package:intl/intl.dart'; part 'exchange_store.g.dart'; @@ -33,6 +35,7 @@ abstract class ExchangeStoreBase with Store { receiveCurrency = initialReceiveCurrency; limitsState = LimitsInitialState(); tradeState = ExchangeTradeStateInitial(); + _cryptoNumberFormat = NumberFormat()..maximumFractionDigits = 12; loadLimits(); } @@ -74,6 +77,10 @@ abstract class ExchangeStoreBase with Store { WalletStore walletStore; + Limits limits; + + NumberFormat _cryptoNumberFormat; + @action void changeProvider({ExchangeProvider provider}) { this.provider = provider; @@ -108,7 +115,7 @@ abstract class ExchangeStoreBase with Store { provider .calculateAmount( from: depositCurrency, to: receiveCurrency, amount: _amount) - .then((amount) => amount.toString()) + .then((amount) => _cryptoNumberFormat.format(amount).toString().replaceAll(RegExp("\\,"), "")) .then((amount) => depositAmount = amount); } @@ -125,7 +132,7 @@ abstract class ExchangeStoreBase with Store { provider .calculateAmount( from: depositCurrency, to: receiveCurrency, amount: _amount) - .then((amount) => amount.toString()) + .then((amount) => _cryptoNumberFormat.format(amount).toString().replaceAll(RegExp("\\,"), "")) .then((amount) => receiveAmount = amount); } @@ -134,7 +141,7 @@ abstract class ExchangeStoreBase with Store { limitsState = LimitsIsLoading(); try { - final limits = await provider.fetchLimits( + limits = await provider.fetchLimits( from: depositCurrency, to: receiveCurrency); limitsState = LimitsLoadedSuccessfully(limits: limits); } catch (e) { @@ -145,6 +152,8 @@ abstract class ExchangeStoreBase with Store { @action Future createTrade() async { TradeRequest request; + String amount; + CryptoCurrency currency; if (provider is XMRTOExchangeProvider) { request = XMRTOTradeRequest( @@ -153,6 +162,8 @@ abstract class ExchangeStoreBase with Store { amount: receiveAmount, address: receiveAddress, refundAddress: depositAddress); + amount = receiveAmount; + currency = receiveCurrency; } if (provider is ChangeNowExchangeProvider) { @@ -162,6 +173,8 @@ abstract class ExchangeStoreBase with Store { amount: depositAmount, refundAddress: depositAddress, address: receiveAddress); + amount = depositAmount; + currency = depositCurrency; } if (provider is MorphTokenExchangeProvider) { @@ -171,17 +184,36 @@ abstract class ExchangeStoreBase with Store { amount: depositAmount, refundAddress: depositAddress, address: receiveAddress); + amount = depositAmount; + currency = depositCurrency; } - try { - tradeState = TradeIsCreating(); - final trade = await provider.createTrade(request: request); - trade.walletId = walletStore.id; - await trades.add(trade); - tradeState = TradeIsCreatedSuccessfully(trade: trade); - } catch (e) { - tradeState = TradeIsCreatedFailure(error: e.toString()); + if (limitsState is LimitsLoadedSuccessfully) { + if (double.parse(amount) < limits.min) { + final error = "Trade for ${provider.description} is not created. " + "Amount is less then minimal: ${limits.min} ${currency.toString()}"; + tradeState = TradeIsCreatedFailure(error: error); + } else if (limits.max != null && double.parse(amount) > limits.max) { + final error = "Trade for ${provider.description} is not created. " + "Amount is more then maximum: ${limits.max} ${currency.toString()}"; + tradeState = TradeIsCreatedFailure(error: error); + } else { + try { + tradeState = TradeIsCreating(); + final trade = await provider.createTrade(request: request); + trade.walletId = walletStore.id; + await trades.add(trade); + tradeState = TradeIsCreatedSuccessfully(trade: trade); + } catch (e) { + tradeState = TradeIsCreatedFailure(error: e.toString()); + } + } + } else { + final error = "Trade for ${provider.description} is not created. " + "Limits loading failed"; + tradeState = TradeIsCreatedFailure(error: error); } + } @action