CAKE-20 | updated send and send template pages; added send_template_store and exchange_template_store; created base_send_widget; applied send_template_store to send_view_model; applied base_send_widget to send and send template pages; added properties to address_text_field, base_text_field and template_tile

lib/view_model/send_view_model.dart

@@ -1,16 +1,21 @@
 import 'package:cake_wallet/core/address_validator.dart';
 import 'package:cake_wallet/core/amount_validator.dart';
+import 'package:cake_wallet/core/template_validator.dart';
 import 'package:cake_wallet/core/validator.dart';
 import 'package:cake_wallet/core/wallet_base.dart';
 import 'package:cake_wallet/bitcoin/bitcoin_wallet.dart';
 import 'package:cake_wallet/monero/monero_wallet.dart';
 import 'package:cake_wallet/src/domain/common/balance.dart';
+import 'package:cake_wallet/src/domain/common/balance_display_mode.dart';
 import 'package:cake_wallet/src/domain/common/calculate_estimated_fee.dart';
 import 'package:cake_wallet/src/domain/common/crypto_currency.dart';
 import 'package:cake_wallet/src/domain/common/fiat_currency.dart';
+import 'package:cake_wallet/src/domain/common/sync_status.dart';
 import 'package:cake_wallet/src/domain/common/transaction_priority.dart';
 import 'package:cake_wallet/store/settings_store.dart';
+import 'package:cake_wallet/store/templates/send_template_store.dart';
 import 'package:flutter/foundation.dart';
+import 'package:intl/intl.dart';
 import 'package:mobx/mobx.dart';
 import 'package:cake_wallet/monero/monero_wallet_service.dart';
 import 'package:cake_wallet/bitcoin/bitcoin_wallet_creation_credentials.dart';
@@ -18,6 +23,10 @@ import 'package:cake_wallet/core/wallet_creation_service.dart';
 import 'package:cake_wallet/core/wallet_credentials.dart';
 import 'package:cake_wallet/src/domain/common/wallet_type.dart';
 import 'package:cake_wallet/view_model/wallet_creation_vm.dart';
+import 'package:cake_wallet/generated/i18n.dart';
+import 'package:cake_wallet/src/domain/common/openalias_record.dart';
+import 'package:cake_wallet/store/dashboard/fiat_convertation_store.dart';
+import 'package:cake_wallet/src/domain/common/template.dart';
 
 part 'send_view_model.g.dart';
 
@@ -42,8 +51,20 @@ class SendingFailed extends SendViewModelState {
 class SendViewModel = SendViewModelBase with _$SendViewModel;
 
 abstract class SendViewModelBase with Store {
-  SendViewModelBase(this._wallet, this._settingsStore)
-      : state = InitialSendViewModelState();
+  SendViewModelBase(
+      this._wallet,
+      this._settingsStore,
+      this._fiatConvertationStore,
+      this.sendTemplateStore) {
+
+    state = InitialSendViewModelState();
+
+    _cryptoNumberFormat = NumberFormat()..maximumFractionDigits = 12;
+    _fiatNumberFormat = NumberFormat()..maximumFractionDigits = 2;
+  }
+
+  NumberFormat _cryptoNumberFormat;
+  NumberFormat _fiatNumberFormat;
 
   @observable
   SendViewModelState state;
@@ -57,6 +78,22 @@ abstract class SendViewModelBase with Store {
   @observable
   String address;
 
+  String get cryptoCurrencyTitle {
+    var _currencyTitle = '';
+
+    if (_wallet is MoneroWallet) {
+      _currencyTitle = 'Monero';
+    }
+
+    if (_wallet is BitcoinWallet) {
+      _currencyTitle = 'Bitcoin';
+    }
+
+    return _currencyTitle;
+  }
+
+  String get pageTitle => S.current.send_title + ' ' + cryptoCurrencyTitle;
+
   FiatCurrency get fiat => _settingsStore.fiatCurrency;
 
   TransactionPriority get transactionPriority =>
@@ -65,30 +102,120 @@ abstract class SendViewModelBase with Store {
   double get estimatedFee =>
       calculateEstimatedFee(priority: transactionPriority);
 
+  String get name => _wallet.name;
+
   CryptoCurrency get currency => _wallet.currency;
 
   Validator get amountValidator => AmountValidator(type: _wallet.type);
 
   Validator get addressValidator => AddressValidator(type: _wallet.currency);
 
+  Validator get templateValidator => TemplateValidator();
+
+  @computed
+  double get price => _fiatConvertationStore.price;
+
+  @computed
+  ObservableList<Template> get templates => ObservableList.of(
+      sendTemplateStore.templates.where((item)
+      => item.cryptoCurrency == _wallet.currency.title).toList());
+
   @computed
   String get balance {
+    var _balance = '0.0';
+
     if (_wallet is MoneroWallet) {
-      _wallet.balance.formattedUnlockedBalance;
+      _balance = _wallet.balance.formattedUnlockedBalance.toString();
     }
 
     if (_wallet is BitcoinWallet) {
-      _wallet.balance.confirmedFormatted;
+      _balance = _wallet.balance.confirmedFormatted.toString();
     }
 
-    return '0.0';
+    return _settingsStore.balanceDisplayMode == BalanceDisplayMode.hiddenBalance
+        ? '---'
+        : _balance;
   }
 
-  WalletBase _wallet;
+  @computed
+  SyncStatus get status => _wallet.syncStatus;
 
-  SettingsStore _settingsStore;
+  @action
+  void changeCryptoAmount(String amount) {
+    cryptoAmount = amount;
+
+    if (cryptoAmount != null && cryptoAmount.isNotEmpty) {
+      _calculateFiatAmount();
+    } else {
+      fiatAmount = '';
+    }
+  }
+
+  @action
+  void changeFiatAmount(String amount) {
+    fiatAmount = amount;
+
+    if (fiatAmount != null && fiatAmount.isNotEmpty) {
+      _calculateCryptoAmount();
+    } else {
+      cryptoAmount = '';
+    }
+  }
+
+  @action
+  Future _calculateFiatAmount() async {
+    try {
+      final amount = double.parse(cryptoAmount) * price;
+      fiatAmount = _fiatNumberFormat.format(amount);
+    } catch (e) {
+      fiatAmount = '0.00';
+    }
+  }
+
+  @action
+  Future _calculateCryptoAmount() async {
+    try {
+      final amount = double.parse(fiatAmount) / price;
+      cryptoAmount = _cryptoNumberFormat.format(amount);
+    } catch (e) {
+      cryptoAmount = '0.00';
+    }
+  }
+
+  @action
+  void changeAddress(String address) {
+    this.address = address;
+  }
+
+  @action
+  void setSendAll() {
+    cryptoAmount = 'ALL';
+    fiatAmount = '';
+  }
+
+  final WalletBase _wallet;
+
+  final SettingsStore _settingsStore;
+
+  final FiatConvertationStore _fiatConvertationStore;
+
+  final SendTemplateStore sendTemplateStore;
+
+  String recordName;
+
+  String recordAddress;
+
+  Future<bool> isOpenaliasRecord(String name) async {
+    final _openaliasRecord = await OpenaliasRecord
+        .fetchAddressAndName(OpenaliasRecord.formatDomainName(name));
+
+    recordAddress = _openaliasRecord.address;
+    recordName = _openaliasRecord.name;
+
+    return recordAddress != name;
+  }
 
   Future<void> createTransaction() async {}
 
   Future<void> commitTransaction() async {}
-}
+}