mirror of
https://github.com/cypherstack/stack_wallet.git
synced 2024-09-30 02:11:22 +00:00
290adfec21
lots of extra code, lots of commented sections, the models are wrong, the pages just load on desktop and mobile. need to complete the form and ... well, there's a lot, really
428 lines
12 KiB
Dart
428 lines
12 KiB
Dart
import 'package:decimal/decimal.dart';
|
|
import 'package:flutter/cupertino.dart';
|
|
import 'package:flutter/material.dart';
|
|
import 'package:stackwallet/services/buy/buy.dart';
|
|
|
|
class BuyFormState extends ChangeNotifier {
|
|
Buy? _buy;
|
|
Buy? get buy => _buy;
|
|
set buy(Buy? value) {
|
|
_buy = value;
|
|
_onBuyTypeChanged();
|
|
}
|
|
|
|
// BuyRateType _buyType = BuyRateType.estimated;
|
|
// BuyRateType get buyType => _buyType;
|
|
// set buyType(BuyRateType value) {
|
|
// _buyType = value;
|
|
// _onBuyRateTypeChanged();
|
|
// }
|
|
|
|
bool reversed = false;
|
|
|
|
Decimal? fromAmount;
|
|
Decimal? toAmount;
|
|
|
|
Decimal? minAmount;
|
|
Decimal? maxAmount;
|
|
|
|
Decimal? rate;
|
|
// Estimate? estimate;
|
|
//
|
|
// dynamic? _market;
|
|
// dynamic? get market => _market;
|
|
//
|
|
// dynamic? _from;
|
|
// dynamic? _to;
|
|
|
|
@override
|
|
String toString() {
|
|
return 'BuyFormState: {test: "test"}';
|
|
// return 'BuyFormState: {_buy: $_buy, _buyType: $_buyType, reversed: $reversed, fromAmount: $fromAmount, toAmount: $toAmount, minAmount: $minAmount, maxAmount: $maxAmount, rate: $rate, estimate: $estimate, _market: $_market, _from: $_from, _to: $_to, _onError: $_onError}';
|
|
}
|
|
|
|
String? get fromTicker {
|
|
// switch (buyType) {
|
|
// case BuyRateType.estimated:
|
|
// return _from?.ticker;
|
|
// case BuyRateType.fixed:
|
|
// switch (buy?.name) {
|
|
// // case SimpleSwapBuy.buyName:
|
|
// // return _from?.ticker;
|
|
// case ChangeNowBuy.buyName:
|
|
// return market?.from;
|
|
// default:
|
|
// return null;
|
|
// }
|
|
// }
|
|
}
|
|
|
|
String? get toTicker {
|
|
// switch (buyType) {
|
|
// case BuyRateType.estimated:
|
|
// return _to?.ticker;
|
|
// case BuyRateType.fixed:
|
|
// switch (buy?.name) {
|
|
// // case SimpleSwapBuy.buyName:
|
|
// // return _to?.ticker;
|
|
// case ChangeNowBuy.buyName:
|
|
// return market?.to;
|
|
// default:
|
|
// return null;
|
|
// }
|
|
// }
|
|
}
|
|
|
|
void Function(String)? _onError;
|
|
|
|
// dynamic? get from => _from;
|
|
// dynamic? get to => _to;
|
|
//
|
|
// void setCurrencies(dynamic from, dynamic to) {
|
|
// _from = from;
|
|
// _to = to;
|
|
// }
|
|
|
|
String get warning {
|
|
// if (reversed) {
|
|
// if (toTicker != null && toAmount != null) {
|
|
// if (minAmount != null &&
|
|
// toAmount! < minAmount! &&
|
|
// toAmount! > Decimal.zero) {
|
|
// return "Minimum amount ${minAmount!.toString()} ${toTicker!.toUpperCase()}";
|
|
// } else if (maxAmount != null && toAmount! > maxAmount!) {
|
|
// return "Maximum amount ${maxAmount!.toString()} ${toTicker!.toUpperCase()}";
|
|
// }
|
|
// }
|
|
// } else {
|
|
// if (fromTicker != null && fromAmount != null) {
|
|
// if (minAmount != null &&
|
|
// fromAmount! < minAmount! &&
|
|
// fromAmount! > Decimal.zero) {
|
|
// return "Minimum amount ${minAmount!.toString()} ${fromTicker!.toUpperCase()}";
|
|
// } else if (maxAmount != null && fromAmount! > maxAmount!) {
|
|
// return "Maximum amount ${maxAmount!.toString()} ${fromTicker!.toUpperCase()}";
|
|
// }
|
|
// }
|
|
// }
|
|
|
|
return "";
|
|
}
|
|
|
|
String get fromAmountString => fromAmount?.toStringAsFixed(8) ?? "";
|
|
String get toAmountString => toAmount?.toStringAsFixed(8) ?? "";
|
|
|
|
bool get canBuy {
|
|
// if (buy?.name == ChangeNowBuy.buyName && buyType == BuyRateType.fixed) {
|
|
// return _market != null &&
|
|
// fromAmount != null &&
|
|
// toAmount != null &&
|
|
// warning.isEmpty;
|
|
// } else {
|
|
// return fromAmount != null &&
|
|
// fromAmount != Decimal.zero &&
|
|
// toAmount != null &&
|
|
// rate != null &&
|
|
// warning.isEmpty;
|
|
// }
|
|
return true;
|
|
}
|
|
|
|
void clearAmounts(bool shouldNotifyListeners) {
|
|
// fromAmount = null;
|
|
// toAmount = null;
|
|
// minAmount = null;
|
|
// maxAmount = null;
|
|
// rate = null;
|
|
//
|
|
// if (shouldNotifyListeners) {
|
|
// notifyListeners();
|
|
// }
|
|
}
|
|
|
|
Future<void> setFromAmountAndCalculateToAmount(
|
|
Decimal newFromAmount,
|
|
bool shouldNotifyListeners,
|
|
) async {
|
|
// if (newFromAmount == Decimal.zero) {
|
|
// toAmount = Decimal.zero;
|
|
// }
|
|
//
|
|
// fromAmount = newFromAmount;
|
|
// reversed = false;
|
|
//
|
|
// await updateRanges(shouldNotifyListeners: false);
|
|
//
|
|
// await updateEstimate(
|
|
// shouldNotifyListeners: false,
|
|
// reversed: reversed,
|
|
// );
|
|
//
|
|
// if (shouldNotifyListeners) {
|
|
// notifyListeners();
|
|
// }
|
|
}
|
|
|
|
Future<void> setToAmountAndCalculateFromAmount(
|
|
Decimal newToAmount,
|
|
bool shouldNotifyListeners,
|
|
) async {
|
|
// if (newToAmount == Decimal.zero) {
|
|
// fromAmount = Decimal.zero;
|
|
// }
|
|
//
|
|
// toAmount = newToAmount;
|
|
// reversed = true;
|
|
//
|
|
// await updateRanges(shouldNotifyListeners: false);
|
|
//
|
|
// await updateEstimate(
|
|
// shouldNotifyListeners: false,
|
|
// reversed: reversed,
|
|
// );
|
|
//
|
|
// if (shouldNotifyListeners) {
|
|
// notifyListeners();
|
|
// }
|
|
}
|
|
|
|
// Future<void> updateTo(dynamic to, bool shouldNotifyListeners) async {
|
|
Future<void> updateTo(dynamic to, bool shouldNotifyListeners) async {
|
|
// try {
|
|
// _to = to;
|
|
// if (_from == null) {
|
|
// rate = null;
|
|
// notifyListeners();
|
|
// return;
|
|
// }
|
|
//
|
|
// await updateRanges(shouldNotifyListeners: false);
|
|
//
|
|
// await updateEstimate(
|
|
// shouldNotifyListeners: false,
|
|
// reversed: reversed,
|
|
// );
|
|
//
|
|
// //todo: check if print needed
|
|
// // debugPrint(
|
|
// // "_updated TO: _from=${_from!.ticker} _to=${_to!.ticker} _fromAmount=$fromAmount _toAmount=$toAmount rate:$rate for: $buy");
|
|
//
|
|
// if (shouldNotifyListeners) {
|
|
// notifyListeners();
|
|
// }
|
|
// } catch (e, s) {
|
|
// Logging.instance.log("$e\n$s", level: LogLevel.Error);
|
|
// }
|
|
}
|
|
|
|
// Future<void> updateFrom(dynamic from, bool shouldNotifyListeners) async {
|
|
Future<void> updateFrom(dynamic from, bool shouldNotifyListeners) async {
|
|
// try {
|
|
// _from = from;
|
|
//
|
|
// if (_to == null) {
|
|
// rate = null;
|
|
// notifyListeners();
|
|
// return;
|
|
// }
|
|
//
|
|
// await updateRanges(shouldNotifyListeners: false);
|
|
//
|
|
// await updateEstimate(
|
|
// shouldNotifyListeners: false,
|
|
// reversed: reversed,
|
|
// );
|
|
//
|
|
// //todo: check if print needed
|
|
// // debugPrint(
|
|
// // "_updated FROM: _from=${_from!.ticker} _to=${_to!.ticker} _fromAmount=$fromAmount _toAmount=$toAmount rate:$rate for: $buy");
|
|
// if (shouldNotifyListeners) {
|
|
// notifyListeners();
|
|
// }
|
|
// } catch (e, s) {
|
|
// Logging.instance.log("$e\n$s", level: LogLevel.Error);
|
|
// }
|
|
}
|
|
|
|
Future<void> updateMarket(
|
|
// dynamic? market,
|
|
dynamic? market,
|
|
bool shouldNotifyListeners,
|
|
) async {
|
|
// _market = market;
|
|
//
|
|
// if (_market == null) {
|
|
// fromAmount = null;
|
|
// toAmount = null;
|
|
// } else {
|
|
// if (fromAmount != null) {
|
|
// if (fromAmount! <= Decimal.zero) {
|
|
// toAmount = Decimal.zero;
|
|
// } else {
|
|
// await updateRanges(shouldNotifyListeners: false);
|
|
// await updateEstimate(
|
|
// shouldNotifyListeners: false,
|
|
// reversed: reversed,
|
|
// );
|
|
// }
|
|
// }
|
|
// }
|
|
//
|
|
// if (shouldNotifyListeners) {
|
|
// notifyListeners();
|
|
// }
|
|
}
|
|
|
|
void _onBuyRateTypeChanged() {
|
|
// print("_onBuyRateTypeChanged");
|
|
// updateRanges(shouldNotifyListeners: true).then(
|
|
// (_) => updateEstimate(
|
|
// shouldNotifyListeners: true,
|
|
// reversed: reversed,
|
|
// ),
|
|
// );
|
|
}
|
|
|
|
void _onBuyTypeChanged() {
|
|
// updateRanges(shouldNotifyListeners: true).then(
|
|
// (_) => updateEstimate(
|
|
// shouldNotifyListeners: true,
|
|
// reversed: reversed,
|
|
// ),
|
|
// );
|
|
}
|
|
|
|
Future<void> updateRanges({required bool shouldNotifyListeners}) async {
|
|
// // if (buy?.name == SimpleSwapBuy.buyName) {
|
|
// // reversed = false;
|
|
// // }
|
|
// final _fromTicker = reversed ? toTicker : fromTicker;
|
|
// final _toTicker = reversed ? fromTicker : toTicker;
|
|
// if (_fromTicker == null || _toTicker == null) {
|
|
// Logging.instance.log(
|
|
// "Tried to $runtimeType.updateRanges where (from: $_fromTicker || to: $_toTicker) for: $buy",
|
|
// level: LogLevel.Info,
|
|
// );
|
|
// return;
|
|
// }
|
|
// final response = await buy?.getRange(
|
|
// _fromTicker,
|
|
// _toTicker,
|
|
// buyType == BuyRateType.fixed,
|
|
// );
|
|
//
|
|
// if (response?.value == null) {
|
|
// Logging.instance.log(
|
|
// "Tried to $runtimeType.updateRanges for: $buy where response: $response",
|
|
// level: LogLevel.Info,
|
|
// );
|
|
// return;
|
|
// }
|
|
//
|
|
// final range = response!.value!;
|
|
//
|
|
// minAmount = range.min;
|
|
// maxAmount = range.max;
|
|
//
|
|
// //todo: check if print needed
|
|
// // debugPrint(
|
|
// // "updated range for: $buy for $_fromTicker-$_toTicker: $range");
|
|
//
|
|
// if (shouldNotifyListeners) {
|
|
// notifyListeners();
|
|
// }
|
|
}
|
|
|
|
Future<void> updateEstimate({
|
|
required bool shouldNotifyListeners,
|
|
required bool reversed,
|
|
}) async {
|
|
// // if (buy?.name == SimpleSwapBuy.buyName) {
|
|
// // reversed = false;
|
|
// // }
|
|
// final amount = reversed ? toAmount : fromAmount;
|
|
// if (fromTicker == null ||
|
|
// toTicker == null ||
|
|
// amount == null ||
|
|
// amount <= Decimal.zero) {
|
|
// Logging.instance.log(
|
|
// "Tried to $runtimeType.updateEstimate for: $buy where (from: $fromTicker || to: $toTicker || amount: $amount)",
|
|
// level: LogLevel.Info,
|
|
// );
|
|
// return;
|
|
// }
|
|
// final response = await buy?.getEstimate(
|
|
// fromTicker!,
|
|
// toTicker!,
|
|
// amount,
|
|
// buyType == BuyRateType.fixed,
|
|
// reversed,
|
|
// );
|
|
//
|
|
// if (response?.value == null) {
|
|
// Logging.instance.log(
|
|
// "Tried to $runtimeType.updateEstimate for: $buy where response: $response",
|
|
// level: LogLevel.Info,
|
|
// );
|
|
// return;
|
|
// }
|
|
//
|
|
// estimate = response!.value!;
|
|
//
|
|
// if (reversed) {
|
|
// fromAmount = estimate!.estimatedAmount;
|
|
// } else {
|
|
// toAmount = estimate!.estimatedAmount;
|
|
// }
|
|
//
|
|
// rate = (toAmount! / fromAmount!).toDecimal(scaleOnInfinitePrecision: 12);
|
|
//
|
|
// //todo: check if print needed
|
|
// // debugPrint(
|
|
// // "updated estimate for: $buy for $fromTicker-$toTicker: $estimate");
|
|
//
|
|
// if (shouldNotifyListeners) {
|
|
// notifyListeners();
|
|
// }
|
|
}
|
|
|
|
void setOnError({
|
|
required void Function(String)? onError,
|
|
bool shouldNotifyListeners = false,
|
|
}) {
|
|
// _onError = onError;
|
|
// if (shouldNotifyListeners) {
|
|
// notifyListeners();
|
|
// }
|
|
}
|
|
|
|
Future<void> swap({dynamic? market}) async {
|
|
// final Decimal? newToAmount = fromAmount;
|
|
// final Decimal? newFromAmount = toAmount;
|
|
//
|
|
// fromAmount = newFromAmount;
|
|
// toAmount = newToAmount;
|
|
//
|
|
// minAmount = null;
|
|
// maxAmount = null;
|
|
//
|
|
// if (buyType == BuyRateType.fixed && buy?.name == ChangeNowBuy.buyName) {
|
|
// await updateMarket(market, false);
|
|
// } else {
|
|
// final dynamic? newTo = from;
|
|
// final dynamic? newFrom = to;
|
|
//
|
|
// _to = newTo;
|
|
// _from = newFrom;
|
|
//
|
|
// await updateRanges(shouldNotifyListeners: false);
|
|
//
|
|
// await updateEstimate(
|
|
// shouldNotifyListeners: false,
|
|
// reversed: reversed,
|
|
// );
|
|
// }
|
|
//
|
|
// notifyListeners();
|
|
}
|
|
}
|