2020-08-25 16:32:40 +00:00
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import 'package:cake_wallet/src/domain/common/calculate_fiat_amount.dart';
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import 'package:cake_wallet/store/dashboard/fiat_convertation_store.dart';
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import 'package:intl/intl.dart';
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import 'package:mobx/mobx.dart';
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import 'package:cake_wallet/core/address_validator.dart';
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import 'package:cake_wallet/core/amount_validator.dart';
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import 'package:cake_wallet/core/pending_transaction.dart';
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import 'package:cake_wallet/core/validator.dart';
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import 'package:cake_wallet/core/wallet_base.dart';
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import 'package:cake_wallet/bitcoin/bitcoin_wallet.dart';
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import 'package:cake_wallet/monero/monero_wallet.dart';
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import 'package:cake_wallet/src/domain/common/sync_status.dart';
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import 'package:cake_wallet/src/domain/common/crypto_currency.dart';
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import 'package:cake_wallet/src/domain/common/fiat_currency.dart';
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import 'package:cake_wallet/src/domain/common/transaction_priority.dart';
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import 'package:cake_wallet/store/settings_store.dart';
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import 'package:cake_wallet/view_model/send/send_view_model_state.dart';
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import 'package:cake_wallet/src/domain/common/wallet_type.dart';
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import 'package:cake_wallet/bitcoin/bitcoin_transaction_credentials.dart';
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part 'send_view_model.g.dart';
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class SendViewModel = SendViewModelBase with _$SendViewModel;
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abstract class SendViewModelBase with Store {
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SendViewModelBase(
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this._wallet, this._settingsStore, this._fiatConversationStore)
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: state = InitialSendViewModelState(),
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_cryptoNumberFormat = NumberFormat()..maximumFractionDigits = 12,
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2020-08-27 16:54:34 +00:00
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// FIXME: need to be based on wallet type.
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2020-08-25 16:32:40 +00:00
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all = false;
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@observable
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SendViewModelState state;
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@observable
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String fiatAmount;
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@observable
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String cryptoAmount;
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@observable
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String address;
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@observable
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bool all;
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FiatCurrency get fiat => _settingsStore.fiatCurrency;
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TransactionPriority get transactionPriority =>
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_settingsStore.transactionPriority;
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double get estimatedFee =>
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_wallet.calculateEstimatedFee(_settingsStore.transactionPriority);
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CryptoCurrency get currency => _wallet.currency;
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Validator get amountValidator => AmountValidator(type: _wallet.type);
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Validator get addressValidator => AddressValidator(type: _wallet.currency);
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PendingTransaction pendingTransaction;
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@computed
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String get balance {
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if (_wallet is MoneroWallet) {
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_wallet.balance.formattedUnlockedBalance;
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}
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if (_wallet is BitcoinWallet) {
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_wallet.balance.confirmedFormatted;
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}
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return '0.0';
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}
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@computed
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bool get isReadyForSend => _wallet.syncStatus is SyncedSyncStatus;
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final WalletBase _wallet;
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final SettingsStore _settingsStore;
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final FiatConvertationStore _fiatConversationStore;
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2020-08-27 16:54:34 +00:00
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final NumberFormat _cryptoNumberFormat;
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2020-08-25 16:32:40 +00:00
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@action
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void setAll() => all = true;
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@action
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void reset() {
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cryptoAmount = '';
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fiatAmount = '';
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address = '';
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}
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@action
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Future<void> createTransaction() async {
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try {
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state = TransactionIsCreating();
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pendingTransaction = await _wallet.createTransaction(_credentials());
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state = TransactionCreatedSuccessfully();
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} catch (e) {
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state = SendingFailed(error: e.toString());
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}
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}
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@action
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Future<void> commitTransaction() async {
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try {
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state = TransactionCommitting();
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await pendingTransaction.commit();
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state = TransactionCommitted();
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} catch (e) {
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state = SendingFailed(error: e.toString());
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}
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}
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@action
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void setCryptoAmount(String amount) {
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2020-08-29 10:19:27 +00:00
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// FIXME: hardcoded value.
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if (amount.toUpperCase() != 'ALL') {
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all = false;
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}
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2020-08-25 16:32:40 +00:00
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cryptoAmount = amount;
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_updateFiatAmount();
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}
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@action
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void setFiatAmount(String amount) {
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fiatAmount = amount;
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_updateCryptoAmount();
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}
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@action
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void _updateFiatAmount() {
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try {
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final fiat = calculateFiatAmount(
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2020-08-27 16:54:34 +00:00
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price: _fiatConversationStore.price,
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cryptoAmount: cryptoAmount.replaceAll(',', '.'));
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2020-08-25 16:32:40 +00:00
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if (fiatAmount != fiat) {
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fiatAmount = fiat;
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}
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} catch (_) {
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fiatAmount = '';
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}
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}
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@action
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void _updateCryptoAmount() {
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try {
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2020-08-27 16:54:34 +00:00
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final crypto = double.parse(fiatAmount.replaceAll(',', '.')) /
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_fiatConversationStore.price;
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2020-08-25 16:32:40 +00:00
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final cryptoAmountTmp = _cryptoNumberFormat.format(crypto);
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if (cryptoAmount != cryptoAmountTmp) {
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cryptoAmount = cryptoAmountTmp;
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}
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} catch (e) {
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cryptoAmount = '';
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}
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}
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Object _credentials() {
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final amount =
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!all ? double.parse(cryptoAmount.replaceAll(',', '.')) : null;
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switch (_wallet.type) {
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case WalletType.bitcoin:
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return BitcoinTransactionCredentials(
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address, amount, _settingsStore.transactionPriority);
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case WalletType.monero:
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// FIXME: Wrong credentials
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return BitcoinTransactionCredentials(
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address, amount, _settingsStore.transactionPriority);
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default:
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return null;
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}
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}
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}
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