mirror of
https://github.com/cypherstack/stack_wallet.git
synced 2024-09-30 10:21:17 +00:00
102 lines
3.2 KiB
Dart
102 lines
3.2 KiB
Dart
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/*
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* This file is part of Stack Wallet.
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*
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* Copyright (c) 2023 Cypher Stack
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* All Rights Reserved.
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* The code is distributed under GPLv3 license, see LICENSE file for details.
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* Generated by Cypher Stack on 2023-05-26
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*
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*/
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import 'package:decimal/decimal.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:stackwallet/models/exchange/active_pair.dart';
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import 'package:stackwallet/models/exchange/response_objects/estimate.dart';
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import 'package:stackwallet/models/exchange/response_objects/range.dart';
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import 'package:stackwallet/services/exchange/exchange.dart';
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import 'package:stackwallet/services/exchange/exchange_response.dart';
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import 'package:stackwallet/utilities/enums/exchange_rate_type_enum.dart';
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import 'package:tuple/tuple.dart';
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final efEstimatesListProvider = StateProvider.family<
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Tuple2<ExchangeResponse<List<Estimate>>, Range?>?,
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String>((ref, exchangeName) => null);
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final efRateTypeProvider =
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StateProvider<ExchangeRateType>((ref) => ExchangeRateType.estimated);
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final efExchangeProvider =
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StateProvider<Exchange>((ref) => Exchange.defaultExchange);
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final efExchangeProviderNameProvider =
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StateProvider<String>((ref) => Exchange.defaultExchange.name);
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final currentCombinedExchangeIdProvider = Provider<String>((ref) {
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return "${ref.watch(efExchangeProvider).name}"
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" (${ref.watch(efExchangeProviderNameProvider)})";
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});
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final efSendAmountProvider = StateProvider<Decimal?>((ref) => null);
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final efReceiveAmountProvider = StateProvider<Decimal?>((ref) => null);
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final efSendAmountStringProvider = StateProvider<String>((ref) {
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final refreshing = ref.watch(efRefreshingProvider);
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final reversed = ref.watch(efReversedProvider);
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if (refreshing && reversed) {
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return "-";
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} else {
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return ref.watch(efSendAmountProvider)?.toString() ?? "";
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}
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});
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final efReceiveAmountStringProvider = StateProvider<String>((ref) {
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final refreshing = ref.watch(efRefreshingProvider);
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final reversed = ref.watch(efReversedProvider);
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if (refreshing && reversed == false) {
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return "-";
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} else {
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return ref.watch(efReceiveAmountProvider)?.toString() ?? "";
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}
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});
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final efReversedProvider = StateProvider<bool>((ref) => false);
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final efCurrencyPairProvider = ChangeNotifierProvider<ActivePair>(
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(ref) => ActivePair(),
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);
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final efEstimateProvider = StateProvider<Estimate?>((ref) {
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final exchange = ref.watch(efExchangeProvider);
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final provider = ref.watch(efExchangeProviderNameProvider);
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final reversed = ref.watch(efReversedProvider);
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final fixedRate = ref.watch(efRateTypeProvider) == ExchangeRateType.fixed;
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final matches = ref
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.watch(efEstimatesListProvider(exchange.name))
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?.item1
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.value
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?.where((e) {
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return e.exchangeProvider == provider &&
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e.fixedRate == fixedRate &&
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e.reversed == reversed;
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});
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Estimate? result;
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if (matches != null && matches.isNotEmpty) {
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result = matches.first;
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} else {
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result = null;
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}
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return result;
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});
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final efCanExchangeProvider = StateProvider<bool>((ref) {
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final Estimate? estimate = ref.watch(efEstimateProvider);
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final refreshing = ref.watch(efRefreshingProvider);
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return !refreshing && estimate != null;
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});
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final efRefreshingProvider = StateProvider<bool>((ref) => false);
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