Merge branch 'master' of github.com:Overtorment/BlueWallet

2024-11-19 18:00:17 +01:00 · 2018-07-08 10:35:24 +01:00 · 2018-07-08 10:35:24 +01:00 · 46a5030ee6
commit 46a5030ee6
parent a5862cb76e 0ec0953e13
46 changed files with 493 additions and 1025 deletions
--- a/.eslintrc
+++ b/.eslintrc
@ -9,6 +9,7 @@
      'warn',
      {
        singleQuote: true,
+        printWidth: 140,
        trailingComma: 'all'
      }
    ]
--- a/App.js
+++ b/App.js
@ -23,14 +23,8 @@ const appjson = require('./app.json');

 const CustomDrawerContentComponent = props => (
  <ScrollView>
-    <SafeAreaView
-      style={styles.container}
-      forceInset={{ top: 'always', horizontal: 'never' }}
-    >
-      <Text
-        onPress={() => props.navigation.navigate('About')}
-        style={styles.heading}
-      >
+    <SafeAreaView style={styles.container} forceInset={{ top: 'always', horizontal: 'never' }}>
+      <Text onPress={() => props.navigation.navigate('About')} style={styles.heading}>
        {' '}
        {pkg.name} v{pkg.version} (build {appjson.expo.ios.buildNumber})
      </Text>
--- a/App.test.js
+++ b/App.test.js
@ -10,6 +10,7 @@ let assert = require('assert');
 jest.mock('react-native-qrcode', () => 'Video');
 const AsyncStorage = new MockStorage();
 jest.setMock('AsyncStorage', AsyncStorage);
+jest.useFakeTimers();
 jest.mock('Picker', () => {
  // eslint-disable-next-line import/no-unresolved
  const React = require('React');
@ -164,9 +165,7 @@ it('Appstorage - encryptStorage & load encrypted storage works', async () => {
  assert.equal(Storage2.wallets[1].getLabel(), 'testlabel2');

  // next, adding new `fake` storage which should be unlocked with `fake` password
-  let createFakeStorageResult = await Storage2.createFakeStorage(
-    'fakePassword',
-  );
+  let createFakeStorageResult = await Storage2.createFakeStorage('fakePassword');
  assert.ok(createFakeStorageResult);
  assert.equal(Storage2.wallets.length, 0);
  assert.equal(Storage2.cachedPassword, 'fakePassword');
@ -190,46 +189,6 @@ it('Appstorage - encryptStorage & load encrypted storage works', async () => {
  assert.equal(Storage3.wallets[0].getLabel(), 'fakewallet');
 });

-it('bip38 decodes', async () => {
-  const bip38 = require('./bip38');
-  const wif = require('wif');
-
-  let encryptedKey =
-    '6PRVWUbkzq2VVjRuv58jpwVjTeN46MeNmzUHqUjQptBJUHGcBakduhrUNc';
-  let decryptedKey = await bip38.decrypt(
-    encryptedKey,
-    'TestingOneTwoThree',
-    () => {},
-    { N: 1, r: 8, p: 8 }, // using non-default parameters to speed it up (not-bip38 compliant)
-  );
-
-  assert.equal(
-    wif.encode(0x80, decryptedKey.privateKey, decryptedKey.compressed),
-    '5KN7MzqK5wt2TP1fQCYyHBtDrXdJuXbUzm4A9rKAteGu3Qi5CVR',
-  );
-});
-
-it('bip38 decodes slow', async () => {
-  if (process.env.USER === 'burn') {
-    // run only on circleCI
-    return;
-  }
-  jasmine.DEFAULT_TIMEOUT_INTERVAL = 60000;
-  const bip38 = require('bip38');
-  const wif = require('wif');
-
-  let encryptedKey =
-    '6PnU5voARjBBykwSddwCdcn6Eu9EcsK24Gs5zWxbJbPZYW7eiYQP8XgKbN';
-  let decryptedKey = await bip38.decrypt(encryptedKey, 'qwerty', status =>
-    process.stdout.write(parseInt(status.percent) + '%\r'),
-  );
-
-  assert.equal(
-    wif.encode(0x80, decryptedKey.privateKey, decryptedKey.compressed),
-    'KxqRtpd9vFju297ACPKHrGkgXuberTveZPXbRDiQ3MXZycSQYtjc',
-  );
-});
-
 it('Wallet can fetch UTXO', async () => {
  jasmine.DEFAULT_TIMEOUT_INTERVAL = 30000;
  let w = new SegwitP2SHWallet();
@ -251,11 +210,20 @@ it('Wallet can fetch balance', async () => {
  assert.ok(w._lastBalanceFetch > 0);
 });

+it.skip('Wallet can fetch TXs', async () => {
+  let w = new LegacyWallet();
+  w._address = '12eQ9m4sgAwTSQoNXkRABKhCXCsjm2jdVG';
+  await w.fetchTransactions();
+  console.log('txs num:', w.getTransactions().length);
+  assert.equal(w.getTransactions().length, 2);
+});
+
 describe('currency', () => {
-  it.only('fetches exchange rate and saves to AsyncStorage', async () => {
+  it('fetches exchange rate and saves to AsyncStorage', async () => {
+    jasmine.DEFAULT_TIMEOUT_INTERVAL = 15000;
    AsyncStorage.storageCache = {}; // cleanup from other tests
    let currency = require('./currency');
-    await currency.startUpdater(true);
+    await currency.startUpdater();
    let cur = AsyncStorage.storageCache[AppStorage.CURRENCY];
    cur = JSON.parse(cur);
    assert.ok(Number.isInteger(cur[currency.STRUCT.LAST_UPDATED]));
--- a/App2.test.js
+++ b/App2.test.js
@ -0,0 +1,32 @@
+/* global it, jasmine */
+let assert = require('assert');
+
+it('bip38 decodes', async () => {
+  const bip38 = require('./bip38');
+  const wif = require('wif');
+
+  let encryptedKey = '6PRVWUbkzq2VVjRuv58jpwVjTeN46MeNmzUHqUjQptBJUHGcBakduhrUNc';
+  let decryptedKey = await bip38.decrypt(
+    encryptedKey,
+    'TestingOneTwoThree',
+    () => {},
+    { N: 1, r: 8, p: 8 }, // using non-default parameters to speed it up (not-bip38 compliant)
+  );
+
+  assert.equal(wif.encode(0x80, decryptedKey.privateKey, decryptedKey.compressed), '5KN7MzqK5wt2TP1fQCYyHBtDrXdJuXbUzm4A9rKAteGu3Qi5CVR');
+});
+
+it('bip38 decodes slow', async () => {
+  if (process.env.USER === 'burn' || process.env.USER === 'igor') {
+    // run only on circleCI
+    return;
+  }
+  jasmine.DEFAULT_TIMEOUT_INTERVAL = 60000;
+  const bip38 = require('bip38');
+  const wif = require('wif');
+
+  let encryptedKey = '6PnU5voARjBBykwSddwCdcn6Eu9EcsK24Gs5zWxbJbPZYW7eiYQP8XgKbN';
+  let decryptedKey = await bip38.decrypt(encryptedKey, 'qwerty', status => process.stdout.write(parseInt(status.percent) + '%\r'));
+
+  assert.equal(wif.encode(0x80, decryptedKey.privateKey, decryptedKey.compressed), 'KxqRtpd9vFju297ACPKHrGkgXuberTveZPXbRDiQ3MXZycSQYtjc');
+});
--- a/BlueApp.js
+++ b/BlueApp.js
@ -15,10 +15,7 @@ async function startAndDecrypt(retry) {
  let password = false;
  if (await BlueApp.storageIsEncrypted()) {
    do {
-      password = await prompt(
-        (retry && loc._.bad_password) || loc._.enter_password,
-        loc._.storage_is_encrypted,
-      );
+      password = await prompt((retry && loc._.bad_password) || loc._.enter_password, loc._.storage_is_encrypted);
    } while (!password);
  }
  let success = await BlueApp.loadFromDisk(password);
@ -35,10 +32,7 @@ async function startAndDecrypt(retry) {
        console.log('time to refresh wallet #0');
        let oldBalance = wallets[0].getBalance();
        await wallets[0].fetchBalance();
-        if (
-          oldBalance !== wallets[0].getBalance() ||
-          wallets[0].getUnconfirmedBalance() !== 0
-        ) {
+        if (oldBalance !== wallets[0].getBalance() || wallets[0].getUnconfirmedBalance() !== 0) {
          // balance changed, thus txs too
          await wallets[0].fetchTransactions();
          hadToRefresh = true;
--- a/BlueComponents.js
+++ b/BlueComponents.js
@ -3,25 +3,8 @@ import React, { Component } from 'react';
 import { SafeAreaView } from 'react-navigation';
 import Ionicons from 'react-native-vector-icons/Ionicons';
 import { LinearGradient } from 'expo';
-import {
-  Icon,
-  Button,
-  FormLabel,
-  FormInput,
-  Card,
-  Text,
-  Header,
-  List,
-  ListItem,
-} from 'react-native-elements';
-import {
-  TouchableOpacity,
-  ActivityIndicator,
-  View,
-  StyleSheet,
-  Dimensions,
-  Image,
-} from 'react-native';
+import { Icon, Button, FormLabel, FormInput, Card, Text, Header, List, ListItem } from 'react-native-elements';
+import { TouchableOpacity, ActivityIndicator, View, StyleSheet, Dimensions, Image } from 'react-native';
 import Carousel from 'react-native-snap-carousel';
 let loc = require('./loc/');
 /** @type {AppStorage} */
@ -91,12 +74,7 @@ export class BlueCard extends Component {

 export class BlueText extends Component {
  render() {
-    return (
-      <Text
-        {...this.props}
-        style={{ color: BlueApp.settings.foregroundColor }}
-      />
-    );
+    return <Text {...this.props} style={{ color: BlueApp.settings.foregroundColor }} />;
  }
 }

@ -123,12 +101,7 @@ export class BlueListItem extends Component {

 export class BlueFormLabel extends Component {
  render() {
-    return (
-      <FormLabel
-        {...this.props}
-        labelStyle={{ color: BlueApp.settings.foregroundColor }}
-      />
-    );
+    return <FormLabel {...this.props} labelStyle={{ color: BlueApp.settings.foregroundColor }} />;
  }
 }

@ -215,12 +188,7 @@ export class BlueHeaderDefaultSub extends Component {
          >
            <View style={stylesBlueIcon.box}>
              <View style={stylesBlueIcon.ballTransparrent}>
-                <Icon
-                  name="times"
-                  size={16}
-                  type="font-awesome"
-                  color={BlueApp.settings.foregroundColor}
-                />
+                <Icon name="times" size={16} type="font-awesome" color={BlueApp.settings.foregroundColor} />
              </View>
            </View>
          </TouchableOpacity>
@ -264,12 +232,7 @@ export class BlueHeaderDefaultMain extends Component {
          >
            <View style={stylesBlueIcon.box}>
              <View style={stylesBlueIcon.ballTransparrent}>
-                <Icon
-                  name="kebab-horizontal"
-                  size={22}
-                  type="octicon"
-                  color={BlueApp.settings.foregroundColor}
-                />
+                <Icon name="kebab-horizontal" size={22} type="octicon" color={BlueApp.settings.foregroundColor} />
              </View>
            </View>
          </TouchableOpacity>
@ -281,23 +244,13 @@ export class BlueHeaderDefaultMain extends Component {

 export class BlueSpacing extends Component {
  render() {
-    return (
-      <View
-        {...this.props}
-        style={{ height: 60, backgroundColor: BlueApp.settings.brandingColor }}
-      />
-    );
+    return <View {...this.props} style={{ height: 60, backgroundColor: BlueApp.settings.brandingColor }} />;
  }
 }

 export class BlueSpacing40 extends Component {
  render() {
-    return (
-      <View
-        {...this.props}
-        style={{ height: 50, backgroundColor: BlueApp.settings.brandingColor }}
-      />
-    );
+    return <View {...this.props} style={{ height: 50, backgroundColor: BlueApp.settings.brandingColor }} />;
  }
 }

@ -463,14 +416,7 @@ export class BlueTransactionIncommingIcon extends Component {
      <View {...this.props} style={stylesBlueIcon.container}>
        <View style={stylesBlueIcon.boxIncomming}>
          <View style={stylesBlueIcon.ballIncomming}>
-            <Icon
-              {...this.props}
-              name="arrow-down"
-              size={16}
-              type="font-awesome"
-              color="#37c0a1"
-              iconStyle={{ left: 0, top: 8 }}
-            />
+            <Icon {...this.props} name="arrow-down" size={16} type="font-awesome" color="#37c0a1" iconStyle={{ left: 0, top: 8 }} />
          </View>
        </View>
      </View>
@ -505,14 +451,7 @@ export class BlueTransactionOutgoingIcon extends Component {
      <View {...this.props} style={stylesBlueIcon.container}>
        <View style={stylesBlueIcon.boxIncomming}>
          <View style={stylesBlueIcon.ballOutgoing}>
-            <Icon
-              {...this.props}
-              name="arrow-down"
-              size={16}
-              type="font-awesome"
-              color="#d0021b"
-              iconStyle={{ left: 0, top: 8 }}
-            />
+            <Icon {...this.props} name="arrow-down" size={16} type="font-awesome" color="#d0021b" iconStyle={{ left: 0, top: 8 }} />
          </View>
        </View>
      </View>
@ -556,14 +495,7 @@ export class BlueReceiveButtonIcon extends Component {
                transform: [{ rotate: '-45deg' }],
              }}
            >
-              <Icon
-                {...this.props}
-                name="arrow-down"
-                size={16}
-                type="font-awesome"
-                color="#2f5fb3"
-                iconStyle={{ left: 0, top: 15 }}
-              />
+              <Icon {...this.props} name="arrow-down" size={16} type="font-awesome" color="#2f5fb3" iconStyle={{ left: 0, top: 15 }} />
            </View>
            <Text
              style={{
@ -620,14 +552,7 @@ export class BlueSendButtonIcon extends Component {
                transform: [{ rotate: '225deg' }],
              }}
            >
-              <Icon
-                {...this.props}
-                name="arrow-down"
-                size={16}
-                type="font-awesome"
-                color="#2f5fb3"
-                iconStyle={{ left: 0, top: 0 }}
-              />
+              <Icon {...this.props} name="arrow-down" size={16} type="font-awesome" color="#2f5fb3" iconStyle={{ left: 0, top: 0 }} />
            </View>
            <Text
              style={{
@ -773,10 +698,7 @@ export class WalletsCarousel extends Component {
          }
        }}
      >
-        <LinearGradient
-          colors={['#65ceef', '#68bbe1']}
-          style={{ padding: 15, borderRadius: 10, height: 145 }}
-        >
+        <LinearGradient colors={['#65ceef', '#68bbe1']} style={{ padding: 15, borderRadius: 10, height: 145 }}>
          <Image
            source={require('./img/btc-shape.png')}
            style={{
--- a/HDWallet.test.js
+++ b/HDWallet.test.js
@ -4,22 +4,20 @@ import {
  SegwitBech32Wallet,
  HDSegwitP2SHWallet,
  HDLegacyBreadwalletWallet,
+  HDLegacyP2PKHWallet,
+  LegacyWallet,
 } from './class';
 let assert = require('assert');

 it('can convert witness to address', () => {
-  let address = SegwitP2SHWallet.witnessToAddress(
-    '035c618df829af694cb99e664ce1b34f80ad2c3b49bcd0d9c0b1836c66b2d25fd8',
-  );
+  let address = SegwitP2SHWallet.witnessToAddress('035c618df829af694cb99e664ce1b34f80ad2c3b49bcd0d9c0b1836c66b2d25fd8');
  assert.equal(address, '34ZVGb3gT8xMLT6fpqC6dNVqJtJmvdjbD7');

-  address = SegwitBech32Wallet.witnessToAddress(
-    '035c618df829af694cb99e664ce1b34f80ad2c3b49bcd0d9c0b1836c66b2d25fd8',
-  );
+  address = SegwitBech32Wallet.witnessToAddress('035c618df829af694cb99e664ce1b34f80ad2c3b49bcd0d9c0b1836c66b2d25fd8');
  assert.equal(address, 'bc1quhnve8q4tk3unhmjts7ymxv8cd6w9xv8wy29uv');
 });

-it('can create a BIP49', function() {
+it('can create a Segwit HD (BIP49)', async function() {
  let bip39 = require('bip39');
  let bitcoin = require('bitcoinjs-lib');
  let mnemonic =
@ -35,10 +33,7 @@ it('can create a BIP49', function() {
  let scriptSig = bitcoin.script.witnessPubKeyHash.output.encode(keyhash);
  let addressBytes = bitcoin.crypto.hash160(scriptSig);
  let outputScript = bitcoin.script.scriptHash.output.encode(addressBytes);
-  let address = bitcoin.address.fromOutputScript(
-    outputScript,
-    bitcoin.networks.bitcoin,
-  );
+  let address = bitcoin.address.fromOutputScript(outputScript, bitcoin.networks.bitcoin);

  assert.equal(address, '3GcKN7q7gZuZ8eHygAhHrvPa5zZbG5Q1rK');

@ -54,24 +49,65 @@ it('can create a BIP49', function() {
  assert.equal(true, hd.validateMnemonic());

  assert.equal(child.keyPair.toWIF(), hd._getExternalWIFByIndex(0));
+  assert.equal(
+    'ypub6WhHmKBmHNjcrUVNCa3sXduH9yxutMipDcwiKW31vWjcMbfhQHjXdyx4rqXbEtVgzdbhFJ5mZJWmfWwnP4Vjzx97admTUYKQt6b9D7jjSCp',
+    hd.getXpub(),
+  );
+
+  // checking that internal pointer and async address getter return the same address
+  let freeAddress = await hd.getAddressAsync();
+  assert.equal(hd._getExternalAddressByIndex(hd.next_free_address_index), freeAddress);
+});
+
+it.only('can create a Legacy HD (BIP44)', async function() {
+  jasmine.DEFAULT_TIMEOUT_INTERVAL = 30 * 1000;
+  let bip39 = require('bip39');
+  let bitcoin = require('bitcoinjs-lib');
+  let mnemonic = 'high relief amount witness try remember adult destroy puppy fox giant peace';
+  assert.ok(bip39.validateMnemonic(mnemonic));
+  let seed = bip39.mnemonicToSeed(mnemonic);
+  let root = bitcoin.HDNode.fromSeedBuffer(seed);
+
+  let path = "m/44'/0'/0'/0/0";
+  let child = root.derivePath(path);
+
+  let w = new LegacyWallet();
+  w.setSecret(child.keyPair.toWIF());
+  assert.equal('12eQ9m4sgAwTSQoNXkRABKhCXCsjm2jdVG', w.getAddress());
+
+  // testing our class
+  let hd = new HDLegacyP2PKHWallet();
+  hd.setSecret(mnemonic);
+  assert.equal(hd.validateMnemonic(), true);
+  assert.equal(hd._getExternalAddressByIndex(0), '12eQ9m4sgAwTSQoNXkRABKhCXCsjm2jdVG');
+  assert.equal(hd._getInternalAddressByIndex(0), '1KZjqYHm7a1DjhjcdcjfQvYfF2h6PqatjX');
+  assert.equal(
+    hd.getXpub(),
+    'xpub6CQdfC3v9gU86eaSn7AhUFcBVxiGhdtYxdC5Cw2vLmFkfth2KXCMmYcPpvZviA89X6DXDs4PJDk5QVL2G2xaVjv7SM4roWHr1gR4xB3Z7Ps',
+  );
+
+  assert.equal(hd._getExternalWIFByIndex(0), 'L1hqNoJ26YuCdujMBJfWBNfgf4Jo7AcKFvcNcKLoMtoJDdDtRq7Q');
+  assert.equal(hd._getInternalWIFByIndex(0), 'Kx3QkrfemEEV49Mj5oWfb4bsWymboPdstta7eN3kAzop9apxYEFP');
+  await hd.fetchBalance();
+  assert.equal(hd.balance, 0);
+  await hd.fetchTransactions();
+  assert.equal(hd.transactions.length, 4);
+  assert.equal(hd.next_free_address_index, 1);
+  assert.equal(hd.next_free_change_address_index, 1);
+
+  // TODO: rewrite fetchTransactions on Frisbee and uncomment:
+  // let freeAddress = await hd.getAddressAsync();
+  // assert.equal(hd._getExternalAddressByIndex(hd.next_free_address_index), freeAddress);
 });

 it('HD breadwallet works', async function() {
  jasmine.DEFAULT_TIMEOUT_INTERVAL = 300 * 1000;
  let hdBread = new HDLegacyBreadwalletWallet();
-  hdBread.setSecret(
-    'high relief amount witness try remember adult destroy puppy fox giant peace',
-  );
+  hdBread.setSecret('high relief amount witness try remember adult destroy puppy fox giant peace');

  assert.equal(hdBread.validateMnemonic(), true);
-  assert.equal(
-    hdBread._getExternalAddressByIndex(0),
-    '1ARGkNMdsBE36fJhddSwf8PqBXG3s4d2KU',
-  );
-  assert.equal(
-    hdBread._getInternalAddressByIndex(0),
-    '1JLvA5D7RpWgChb4A5sFcLNrfxYbyZdw3V',
-  );
+  assert.equal(hdBread._getExternalAddressByIndex(0), '1ARGkNMdsBE36fJhddSwf8PqBXG3s4d2KU');
+  assert.equal(hdBread._getInternalAddressByIndex(0), '1JLvA5D7RpWgChb4A5sFcLNrfxYbyZdw3V');

  assert.equal(
    hdBread.getXpub(),
--- a/MockStorage.js
+++ b/MockStorage.js
@ -14,17 +14,13 @@ export default class MockStorage {

  getItem = jest.fn(key => {
    return new Promise(resolve => {
-      return this.storageCache.hasOwnProperty(key)
-        ? resolve(this.storageCache[key])
-        : resolve(null);
+      return this.storageCache.hasOwnProperty(key) ? resolve(this.storageCache[key]) : resolve(null);
    });
  });

  removeItem = jest.fn(key => {
    return new Promise((resolve, reject) => {
-      return this.storageCache.hasOwnProperty(key)
-        ? resolve(delete this.storageCache[key])
-        : reject(new Error('No such key!'));
+      return this.storageCache.hasOwnProperty(key) ? resolve(delete this.storageCache[key]) : reject(new Error('No such key!'));
    });
  });

@ -33,8 +29,6 @@ export default class MockStorage {
  });

  getAllKeys = jest.fn(key => {
-    return new Promise((resolve, reject) =>
-      resolve(Object.keys(this.storageCache)),
-    );
+    return new Promise((resolve, reject) => resolve(Object.keys(this.storageCache)));
  });
 }
--- a/README.md
+++ b/README.md
@ -1,6 +1,7 @@
 # BlueWallet - Bitcoin Wallet

 [![CircleCI](https://circleci.com/gh/Overtorment/BlueWallet.svg?style=svg)](https://circleci.com/gh/Overtorment/BlueWallet)
+[![code style: prettier](https://img.shields.io/badge/code_style-prettier-ff69b4.svg?style=flat-square)](https://github.com/prettier/prettier)

 Thin Bitcoin Wallet.
 Built with React Native, Expo and BlockCypher API.
--- a/class/app-storage.js
+++ b/class/app-storage.js
@ -197,9 +197,7 @@ export class AppStorage {
        } else {
          // decrypted ok, this is our bucket
          // we serialize our object's data, encrypt it, and add it to buckets
-          newData.push(
-            encryption.encrypt(JSON.stringify(data), this.cachedPassword),
-          );
+          newData.push(encryption.encrypt(JSON.stringify(data), this.cachedPassword));
          await AsyncStorage.setItem(AppStorage.FLAG_ENCRYPTED, '1');
        }
      }
--- a/class/hd-legacy-breadwallet-wallet.js
+++ b/class/hd-legacy-breadwallet-wallet.js
@ -4,7 +4,7 @@ const bip39 = require('bip39');

 /**
 * HD Wallet (BIP39).
- * In particular, BIP49 (P2SH Segwit)  https://github.com/bitcoin/bips/blob/master/bip-0049.mediawiki
+ * In particular, Breadwallet-compatible (Legacy addresses)
 */
 export class HDLegacyBreadwalletWallet extends HDSegwitP2SHWallet {
  constructor() {
@ -16,10 +16,6 @@ export class HDLegacyBreadwalletWallet extends HDSegwitP2SHWallet {
    return 'HD Legacy Breadwallet-compatible (P2PKH)';
  }

-  getAddress() {
-    // TODO: derive from hierarchy, return next free address
-  }
-
  /**
   * @see https://github.com/bitcoinjs/bitcoinjs-lib/issues/584
   * @see https://github.com/bitcoinjs/bitcoinjs-lib/issues/914
@ -59,4 +55,28 @@ export class HDLegacyBreadwalletWallet extends HDSegwitP2SHWallet {

    return child.getAddress();
  }
+
+  _getExternalWIFByIndex(index) {
+    index = index * 1; // cast to int
+    let mnemonic = this.secret;
+    let seed = bip39.mnemonicToSeed(mnemonic);
+    let root = bitcoin.HDNode.fromSeedBuffer(seed);
+    let path = "m/0'/1/" + index;
+    let child = root.derivePath(path);
+    return child.keyPair.toWIF();
+  }
+
+  _getInternalWIFByIndex(index) {
+    index = index * 1; // cast to int
+    let mnemonic = this.secret;
+    let seed = bip39.mnemonicToSeed(mnemonic);
+    let root = bitcoin.HDNode.fromSeedBuffer(seed);
+    let path = "m/0'/1/" + index;
+    let child = root.derivePath(path);
+    return child.keyPair.toWIF();
+  }
+
+  getAddressAsync() {
+    // TODO
+  }
 }
--- a/class/hd-legacy-p2pkh-wallet.js
+++ b/class/hd-legacy-p2pkh-wallet.js
@ -0,0 +1,104 @@
+import { LegacyWallet, HDSegwitP2SHWallet } from './';
+const bitcoin = require('bitcoinjs-lib');
+const bip39 = require('bip39');
+
+/**
+ * HD Wallet (BIP39).
+ * In particular, BIP44 (P2PKH legacy addressess)
+ * @see https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki
+ */
+export class HDLegacyP2PKHWallet extends HDSegwitP2SHWallet {
+  constructor() {
+    super();
+    this.type = 'HDlegacyP2PKH';
+  }
+
+  getTypeReadable() {
+    return 'HD Legacy (BIP44 P2PKH)';
+  }
+
+  getXpub() {
+    let mnemonic = this.secret;
+    let seed = bip39.mnemonicToSeed(mnemonic);
+    let root = bitcoin.HDNode.fromSeedBuffer(seed);
+
+    let path = "m/44'/0'/0'";
+    let child = root.derivePath(path).neutered();
+    return child.toBase58();
+  }
+
+  _getExternalWIFByIndex(index) {
+    index = index * 1; // cast to int
+    let mnemonic = this.secret;
+    let seed = bip39.mnemonicToSeed(mnemonic);
+    let root = bitcoin.HDNode.fromSeedBuffer(seed);
+    let path = "m/44'/0'/0'/0/" + index;
+    let child = root.derivePath(path);
+    return child.keyPair.toWIF();
+  }
+
+  _getInternalWIFByIndex(index) {
+    index = index * 1; // cast to int
+    let mnemonic = this.secret;
+    let seed = bip39.mnemonicToSeed(mnemonic);
+    let root = bitcoin.HDNode.fromSeedBuffer(seed);
+    let path = "m/44'/0'/0'/1/" + index;
+    let child = root.derivePath(path);
+    return child.keyPair.toWIF();
+  }
+
+  _getExternalAddressByIndex(index) {
+    index = index * 1; // cast to int
+    let mnemonic = this.secret;
+    let seed = bip39.mnemonicToSeed(mnemonic);
+    let root = bitcoin.HDNode.fromSeedBuffer(seed);
+    let path = "m/44'/0'/0'/0/" + index;
+    let child = root.derivePath(path);
+
+    let w = new LegacyWallet();
+    w.setSecret(child.keyPair.toWIF());
+    return w.getAddress();
+  }
+
+  _getInternalAddressByIndex(index) {
+    index = index * 1; // cast to int
+    let mnemonic = this.secret;
+    let seed = bip39.mnemonicToSeed(mnemonic);
+    let root = bitcoin.HDNode.fromSeedBuffer(seed);
+
+    let path = "m/44'/0'/0'/1/" + index;
+    let child = root.derivePath(path);
+
+    let w = new LegacyWallet();
+    w.setSecret(child.keyPair.toWIF());
+    return w.getAddress();
+  }
+
+  /**
+   * @inheritDoc
+   */
+  async getAddressAsync() {
+    // looking for free external address
+    let freeAddress = '';
+    let c;
+    for (c = -1; c < 5; c++) {
+      let Legacy = new LegacyWallet();
+      Legacy.setSecret(this._getExternalWIFByIndex(this.next_free_address_index + c));
+      await Legacy.fetchTransactions();
+      if (Legacy.transactions.length === 0) {
+        // found free address
+        freeAddress = Legacy.getAddress();
+        this.next_free_address_index += c + 1; // now points to the one _after_
+        break;
+      }
+    }
+
+    if (!freeAddress) {
+      // could not find in cycle above, give up
+      freeAddress = this._getExternalAddressByIndex(this.next_free_address_index + c); // we didnt check this one, maybe its free
+      this.next_free_address_index += c + 1; // now points to the one _after_
+    }
+
+    return freeAddress;
+  }
+}
--- a/class/hd-segwit-p2sh-wallet.js
+++ b/class/hd-segwit-p2sh-wallet.js
@ -3,10 +3,12 @@ import { SegwitP2SHWallet } from './segwit-p2sh-wallet';
 import Frisbee from 'frisbee';
 const bitcoin = require('bitcoinjs-lib');
 const bip39 = require('bip39');
+const BigNumber = require('bignumber.js');

 /**
 * HD Wallet (BIP39).
- * In particular, BIP49 (P2SH Segwit)  https://github.com/bitcoin/bips/blob/master/bip-0049.mediawiki
+ * In particular, BIP49 (P2SH Segwit)
+ * @see https://github.com/bitcoin/bips/blob/master/bip-0049.mediawiki
 */
 export class HDSegwitP2SHWallet extends LegacyWallet {
  constructor() {
@ -18,18 +20,22 @@ export class HDSegwitP2SHWallet extends LegacyWallet {
    this.external_addresses_cache = {}; // index => address
  }

+  allowSend() {
+    return false; // TODO send from HD
+  }
+
  validateMnemonic() {
    return bip39.validateMnemonic(this.secret);
  }

  getTypeReadable() {
-    return 'HD SegWit (P2SH)';
+    return 'HD SegWit (BIP49 P2SH)';
  }

  /**
   * Derives from hierarchy, returns next free address
   * (the one that has no transactions). Looks for several,
-   * gve ups if none found, and returns the used one
+   * gives up if none found, and returns the used one
   *
   * @return {Promise.<string>}
   */
@ -39,9 +45,7 @@ export class HDSegwitP2SHWallet extends LegacyWallet {
    let c;
    for (c = -1; c < 5; c++) {
      let Segwit = new SegwitP2SHWallet();
-      Segwit.setSecret(
-        this._getExternalWIFByIndex(this.next_free_address_index + c),
-      );
+      Segwit.setSecret(this._getExternalWIFByIndex(this.next_free_address_index + c));
      await Segwit.fetchTransactions();
      if (Segwit.transactions.length === 0) {
        // found free address
@ -53,9 +57,7 @@ export class HDSegwitP2SHWallet extends LegacyWallet {

    if (!freeAddress) {
      // could not find in cycle above, give up
-      freeAddress = this._getExternalAddressByIndex(
-        this.next_free_address_index + c,
-      ); // we didnt check this one, maybe its free
+      freeAddress = this._getExternalAddressByIndex(this.next_free_address_index + c); // we didnt check this one, maybe its free
      this.next_free_address_index += c + 1; // now points to the one _after_
    }

@ -94,12 +96,7 @@ export class HDSegwitP2SHWallet extends LegacyWallet {
    let scriptSig = bitcoin.script.witnessPubKeyHash.output.encode(keyhash);
    let addressBytes = bitcoin.crypto.hash160(scriptSig);
    let outputScript = bitcoin.script.scriptHash.output.encode(addressBytes);
-    let address = bitcoin.address.fromOutputScript(
-      outputScript,
-      bitcoin.networks.bitcoin,
-    );
-
-    return address;
+    return bitcoin.address.fromOutputScript(outputScript, bitcoin.networks.bitcoin);
  }

  _getInternalAddressByIndex(index) {
@ -115,10 +112,17 @@ export class HDSegwitP2SHWallet extends LegacyWallet {
    let scriptSig = bitcoin.script.witnessPubKeyHash.output.encode(keyhash);
    let addressBytes = bitcoin.crypto.hash160(scriptSig);
    let outputScript = bitcoin.script.scriptHash.output.encode(addressBytes);
-    return bitcoin.address.fromOutputScript(
-      outputScript,
-      bitcoin.networks.bitcoin,
-    );
+    return bitcoin.address.fromOutputScript(outputScript, bitcoin.networks.bitcoin);
+  }
+
+  getXpub() {
+    let mnemonic = this.secret;
+    let seed = bip39.mnemonicToSeed(mnemonic);
+    let root = bitcoin.HDNode.fromSeedBuffer(seed);
+
+    let path = "m/49'/0'/0'";
+    let child = root.derivePath(path).neutered();
+    return child.toBase58();
  }

  async fetchBalance() {
@ -135,15 +139,21 @@ export class HDSegwitP2SHWallet extends LegacyWallet {
    }
  }

+  /**
+   * Async function to fetch all transactions. Use getter to get actual txs.
+   * Also, sets internals:
+   *  `this.internal_addresses_cache`
+   *  `this.external_addresses_cache`
+   *
+   * @returns {Promise<void>}
+   */
  async fetchTransactions() {
    const api = new Frisbee({ baseURI: 'https://blockchain.info' });
    this.transactions = [];
    let offset = 0;

    while (1) {
-      let response = await api.get(
-        '/multiaddr?active=' + this.getXpub() + '&n=100&offset=' + offset,
-      );
+      let response = await api.get('/multiaddr?active=' + this.getXpub() + '&n=100&offset=' + offset);

      if (response && response.body) {
        if (response.body.txs && response.body.txs.length === 0) {
@ -165,18 +175,12 @@ export class HDSegwitP2SHWallet extends LegacyWallet {
                let path = input.prev_out.xpub.path.split('/');
                if (path[path.length - 2] === '1') {
                  // change address
-                  this.next_free_change_address_index = Math.max(
-                    path[path.length - 1] * 1 + 1,
-                    this.next_free_change_address_index,
-                  );
+                  this.next_free_change_address_index = Math.max(path[path.length - 1] * 1 + 1, this.next_free_change_address_index);
                  // setting to point to last maximum known change address + 1
                }
                if (path[path.length - 2] === '0') {
                  // main (aka external) address
-                  this.next_free_address_index = Math.max(
-                    path[path.length - 1] * 1 + 1,
-                    this.next_free_address_index,
-                  );
+                  this.next_free_address_index = Math.max(path[path.length - 1] * 1 + 1, this.next_free_address_index);
                  // setting to point to last maximum known main address + 1
                }
                // done with cache
@ -193,25 +197,19 @@ export class HDSegwitP2SHWallet extends LegacyWallet {
                let path = output.xpub.path.split('/');
                if (path[path.length - 2] === '1') {
                  // change address
-                  this.next_free_change_address_index = Math.max(
-                    path[path.length - 1] * 1 + 1,
-                    this.next_free_change_address_index,
-                  );
+                  this.next_free_change_address_index = Math.max(path[path.length - 1] * 1 + 1, this.next_free_change_address_index);
                  // setting to point to last maximum known change address + 1
                }
                if (path[path.length - 2] === '0') {
                  // main (aka external) address
-                  this.next_free_address_index = Math.max(
-                    path[path.length - 1] * 1 + 1,
-                    this.next_free_address_index,
-                  );
+                  this.next_free_address_index = Math.max(path[path.length - 1] * 1 + 1, this.next_free_address_index);
                  // setting to point to last maximum known main address + 1
                }
                // done with cache
              }
            }

-            tx.value = value / 100000000;
+            tx.value = new BigNumber(value).div(100000000).toString() * 1;

            this.transactions.push(tx);
          }
@ -219,7 +217,7 @@ export class HDSegwitP2SHWallet extends LegacyWallet {
          break; // error ?
        }
      } else {
-        throw new Error('Could not fetch balance from API'); // breaks here
+        throw new Error('Could not fetch transactions from API'); // breaks here
      }

      offset += 100;
--- a/class/index.js
+++ b/class/index.js
@ -6,3 +6,4 @@ export * from './segwit-bech-wallet';
 export * from './segwit-p2sh-wallet';
 export * from './hd-segwit-p2sh-wallet';
 export * from './hd-legacy-breadwallet-wallet';
+export * from './hd-legacy-p2pkh-wallet';
--- a/class/legacy-wallet.js
+++ b/class/legacy-wallet.js
@ -83,25 +83,17 @@ export class LegacyWallet extends AbstractWallet {
      });

      let response = await api.get(
-        this.getAddress() +
-          '/balance' +
-          ((useBlockcypherTokens &&
-            '&token=' + this.getRandomBlockcypherToken()) ||
-            ''),
+        this.getAddress() + '/balance' + ((useBlockcypherTokens && '&token=' + this.getRandomBlockcypherToken()) || ''),
      );
      let json = response.body;
-      if (
-        typeof json === 'undefined' ||
-        typeof json.final_balance === 'undefined'
-      ) {
+      if (typeof json === 'undefined' || typeof json.final_balance === 'undefined') {
        throw new Error('Could not fetch UTXO from API' + response.err);
      }

      this.balance = new BigNumber(json.final_balance);
      this.balance = this.balance.div(100000000).toString() * 1;
      this.unconfirmed_balance = new BigNumber(json.unconfirmed_balance);
-      this.unconfirmed_balance =
-        this.unconfirmed_balance.div(100000000).toString() * 1;
+      this.unconfirmed_balance = this.unconfirmed_balance.div(100000000).toString() * 1;
      this._lastBalanceFetch = +new Date();
    } catch (err) {
      console.warn(err);
@ -129,15 +121,10 @@ export class LegacyWallet extends AbstractWallet {
          this.getAddress() +
            '?limit=2000&after=' +
            maxHeight +
-            ((useBlockcypherTokens &&
-              '&token=' + this.getRandomBlockcypherToken()) ||
-              ''),
+            ((useBlockcypherTokens && '&token=' + this.getRandomBlockcypherToken()) || ''),
        );
        json = response.body;
-        if (
-          typeof json === 'undefined' ||
-          typeof json.final_balance === 'undefined'
-        ) {
+        if (typeof json === 'undefined' || typeof json.final_balance === 'undefined') {
          throw new Error('Could not fetch UTXO from API' + response.err);
        }
        json.txrefs = json.txrefs || []; // case when source address is empty (or maxheight too high, no txs)
@ -169,19 +156,10 @@ export class LegacyWallet extends AbstractWallet {
      let url;
      if (useBlockcypherTokens) {
        response = await fetch(
-          (url =
-            'https://api.blockcypher.com/v1/btc/main/addrs/' +
-            this.getAddress() +
-            '/full?token=' +
-            this.getRandomBlockcypherToken()),
+          (url = 'https://api.blockcypher.com/v1/btc/main/addrs/' + this.getAddress() + '/full?token=' + this.getRandomBlockcypherToken()),
        );
      } else {
-        response = await fetch(
-          (url =
-            'https://api.blockcypher.com/v1/btc/main/addrs/' +
-            this.getAddress() +
-            '/full'),
-        );
+        response = await fetch((url = 'https://api.blockcypher.com/v1/btc/main/addrs/' + this.getAddress() + '/full'));
      }
      console.log(url);
      let json = await response.json();
@ -369,25 +347,9 @@ export class LegacyWallet extends AbstractWallet {
      u.amount = u.amount.div(100000000);
      u.amount = u.amount.toString(10);
    }
-    console.log(
-      'creating legacy tx ',
-      amount,
-      ' with fee ',
-      fee,
-      'secret=',
-      this.getSecret(),
-      'from address',
-      this.getAddress(),
-    );
+    console.log('creating legacy tx ', amount, ' with fee ', fee, 'secret=', this.getSecret(), 'from address', this.getAddress());
    let amountPlusFee = parseFloat(new BigNumber(amount).add(fee).toString(10));
-    return signer.createTransaction(
-      utxos,
-      toAddress,
-      amountPlusFee,
-      fee,
-      this.getSecret(),
-      this.getAddress(),
-    );
+    return signer.createTransaction(utxos, toAddress, amountPlusFee, fee, this.getSecret(), this.getAddress());
  }

  getLatestTransactionTime() {
--- a/class/segwit-bech-wallet.js
+++ b/class/segwit-bech-wallet.js
@ -17,9 +17,7 @@ export class SegwitBech32Wallet extends LegacyWallet {
    try {
      let keyPair = bitcoin.ECPair.fromWIF(this.secret);
      let pubKey = keyPair.getPublicKeyBuffer();
-      let scriptPubKey = bitcoin.script.witnessPubKeyHash.output.encode(
-        bitcoin.crypto.hash160(pubKey),
-      );
+      let scriptPubKey = bitcoin.script.witnessPubKeyHash.output.encode(bitcoin.crypto.hash160(pubKey));
      address = bitcoin.address.fromOutputScript(scriptPubKey);
    } catch (err) {
      return false;
@ -32,12 +30,7 @@ export class SegwitBech32Wallet extends LegacyWallet {
  static witnessToAddress(witness) {
    const pubKey = Buffer.from(witness, 'hex');
    const pubKeyHash = bitcoin.crypto.hash160(pubKey);
-    const scriptPubKey = bitcoin.script.witnessPubKeyHash.output.encode(
-      pubKeyHash,
-    );
-    return bitcoin.address.fromOutputScript(
-      scriptPubKey,
-      bitcoin.networks.bitcoin,
-    );
+    const scriptPubKey = bitcoin.script.witnessPubKeyHash.output.encode(pubKeyHash);
+    return bitcoin.address.fromOutputScript(scriptPubKey, bitcoin.networks.bitcoin);
  }
 }
--- a/class/segwit-p2sh-wallet.js
+++ b/class/segwit-p2sh-wallet.js
@ -16,17 +16,10 @@ export class SegwitP2SHWallet extends LegacyWallet {
  static witnessToAddress(witness) {
    const pubKey = Buffer.from(witness, 'hex');
    const pubKeyHash = bitcoin.crypto.hash160(pubKey);
-    const redeemScript = bitcoin.script.witnessPubKeyHash.output.encode(
-      pubKeyHash,
-    );
+    const redeemScript = bitcoin.script.witnessPubKeyHash.output.encode(pubKeyHash);
    const redeemScriptHash = bitcoin.crypto.hash160(redeemScript);
-    const scriptPubkey = bitcoin.script.scriptHash.output.encode(
-      redeemScriptHash,
-    );
-    return bitcoin.address.fromOutputScript(
-      scriptPubkey,
-      bitcoin.networks.bitcoin,
-    );
+    const scriptPubkey = bitcoin.script.scriptHash.output.encode(redeemScriptHash);
+    return bitcoin.address.fromOutputScript(scriptPubkey, bitcoin.networks.bitcoin);
  }

  getAddress() {
@ -35,12 +28,8 @@ export class SegwitP2SHWallet extends LegacyWallet {
    try {
      let keyPair = bitcoin.ECPair.fromWIF(this.secret);
      let pubKey = keyPair.getPublicKeyBuffer();
-      let witnessScript = bitcoin.script.witnessPubKeyHash.output.encode(
-        bitcoin.crypto.hash160(pubKey),
-      );
-      let scriptPubKey = bitcoin.script.scriptHash.output.encode(
-        bitcoin.crypto.hash160(witnessScript),
-      );
+      let witnessScript = bitcoin.script.witnessPubKeyHash.output.encode(bitcoin.crypto.hash160(pubKey));
+      let scriptPubKey = bitcoin.script.scriptHash.output.encode(bitcoin.crypto.hash160(witnessScript));
      address = bitcoin.address.fromOutputScript(scriptPubKey);
    } catch (err) {
      return false;
@ -76,26 +65,9 @@ export class SegwitP2SHWallet extends LegacyWallet {
      u.amount = u.amount.div(100000000);
      u.amount = u.amount.toString(10);
    }
-    console.log(
-      'creating tx ',
-      amount,
-      ' with fee ',
-      fee,
-      'secret=',
-      this.getSecret(),
-      'from address',
-      this.getAddress(),
-    );
+    console.log('creating tx ', amount, ' with fee ', fee, 'secret=', this.getSecret(), 'from address', this.getAddress());
    let amountPlusFee = parseFloat(new BigNumber(amount).add(fee).toString(10));
    // to compensate that module substracts fee from amount
-    return signer.createSegwitTransaction(
-      utxos,
-      address,
-      amountPlusFee,
-      fee,
-      this.getSecret(),
-      this.getAddress(),
-      sequence,
-    );
+    return signer.createSegwitTransaction(utxos, address, amountPlusFee, fee, this.getSecret(), this.getAddress(), sequence);
  }
 }
--- a/currency.js
+++ b/currency.js
@ -37,7 +37,7 @@ async function updateExchangeRate() {
  console.log('updated currency exchange:', lang);
 }

-async function startUpdater(doNotSetInterval) {
+async function startUpdater() {
  lang = await AsyncStorage.getItem(AppStorage.CURRENCY);
  try {
    lang = JSON.parse(lang);
@ -52,9 +52,7 @@ async function startUpdater(doNotSetInterval) {
  lang[STRUCT.LAST_UPDATED] = lang[STRUCT.LAST_UPDATED] || 0;
  lang[STRUCT.BTC_USD] = lang[STRUCT.BTC_USD] || 6500;

-  if (!doNotSetInterval) {
-    setInterval(() => updateExchangeRate(), 2 * 60 * 100);
-  }
+  setInterval(() => updateExchangeRate(), 2 * 60 * 100);
  return updateExchangeRate();
 }

--- a/events.js
+++ b/events.js
@ -1,11 +1,6 @@
 function EV(eventName, arg) {
  if (Object.values(EV.enum).indexOf(eventName) === -1) {
-    return console.warn(
-      'Unregistered event',
-      eventName,
-      'registered events:',
-      EV.enum,
-    );
+    return console.warn('Unregistered event', eventName, 'registered events:', EV.enum);
  }
  EV.callbacks = EV.callbacks || {}; // static variable
  EV.callbacks[eventName] = EV.callbacks[eventName] || [];
@ -27,8 +22,7 @@ function EV(eventName, arg) {
 EV.enum = {
  WALLETS_COUNT_CHANGED: 'WALLETS_COUNT_CHANGED',
  TRANSACTIONS_COUNT_CHANGED: 'TRANSACTIONS_COUNT_CHANGED',
-  CREATE_TRANSACTION_NEW_DESTINATION_ADDRESS:
-    'CREATE_TRANSACTION_NEW_DESTINATION_ADDRESS',
+  CREATE_TRANSACTION_NEW_DESTINATION_ADDRESS: 'CREATE_TRANSACTION_NEW_DESTINATION_ADDRESS',
  RECEIVE_ADDRESS_CHANGED: 'RECEIVE_ADDRESS_CHANGED',
 };

--- a/loc/en.js
+++ b/loc/en.js
@ -1,7 +1,6 @@
 module.exports = {
  _: {
-    storage_is_encrypted:
-      'Your storage is encrypted. Password is required to decrypt it',
+    storage_is_encrypted: 'Your storage is encrypted. Password is required to decrypt it',
    enter_password: 'Enter password',
    bad_password: 'Bad pasword, try again',
    months_ago: 'months ago',
@ -14,9 +13,7 @@ module.exports = {
      tabBarLabel: 'Wallets',
      app_name: 'Blue Wallet',
      title: 'wallets',
-      header:
-        'A wallet represents a pair of a secret (private key) and an address' +
-        'you can share to receive coins.',
+      header: 'A wallet represents a pair of a secret (private key) and an address' + 'you can share to receive coins.',
      add: 'Add Wallet',
      create_a_wallet: 'Create a wallet',
      create_a_wallet1: "It's free and you can create",
@ -98,8 +95,7 @@ module.exports = {
      title: 'Create Transaction',
      error: 'Error creating transaction. Invalid address or send amount?',
      go_back: 'Go Back',
-      this_is_hex:
-        'This is transaction hex, signed and ready to be broadcast to the network. Continue?',
+      this_is_hex: 'This is transaction hex, signed and ready to be broadcast to the network. Continue?',
      to: 'To',
      amount: 'Amount',
      fee: 'Fee',
@ -141,16 +137,12 @@ module.exports = {
      "BlueWallet, it will unlock new 'fake' storage. This will seem " +
      'legit to a 3rd party, but will secretly keep your main storage ' +
      'with coins safe.',
-    help2:
-      'New storage will be fully functional, and you can store some ' +
-      'minimum amounts there so it looks more believable.',
+    help2: 'New storage will be fully functional, and you can store some ' + 'minimum amounts there so it looks more believable.',
    create_fake_storage: 'Create fake encrypted storage',
    go_back: 'Go Back',
    create_password: 'Create a password',
-    create_password_explanation:
-      'Password for fake storage should not match password for your main storage',
-    password_should_not_match:
-      'Password for fake storage should not match password for your main storage',
+    create_password_explanation: 'Password for fake storage should not match password for your main storage',
+    password_should_not_match: 'Password for fake storage should not match password for your main storage',
    retype_password: 'Retype password',
    passwords_do_not_match: 'Passwords do not match, try again',
    success: 'Success',
--- a/loc/es.js
+++ b/loc/es.js
@ -4,9 +4,7 @@ module.exports = {
      tabBarLabel: 'Monederos',
      app_name: 'Blue Wallet',
      title: 'Mi Monederos de Bitcoin',
-      header:
-        'Un Monedero esta representado con secreto (clave privada) y una dirección' +
-        'que puedes compartir para recibir monedas.',
+      header: 'Un Monedero esta representado con secreto (clave privada) y una dirección' + 'que puedes compartir para recibir monedas.',
      add: 'Añadir Monedero',
    },
    add: {
@ -50,8 +48,7 @@ module.exports = {
    list: {
      tabBarLabel: 'Transacciónes',
      title: 'Mi Transacciónes',
-      description:
-        'Una lista de las transacciones entrantes o salientes de sus monederos',
+      description: 'Una lista de las transacciones entrantes o salientes de sus monederos',
      conf: 'conf',
    },
    details: {
@ -81,11 +78,9 @@ module.exports = {
    },
    create: {
      title: 'Crear una Transaccion',
-      error:
-        'Error al crear una transacción. ¿Dirección o cantidad estan invalidas?',
+      error: 'Error al crear una transacción. ¿Dirección o cantidad estan invalidas?',
      go_back: 'Regresar',
-      this_is_hex:
-        'Este es representacion hex de transacción, firmado y listo para ser transmitido a la red. ¿Continuar?',
+      this_is_hex: 'Este es representacion hex de transacción, firmado y listo para ser transmitido a la red. ¿Continuar?',
      to: 'A',
      amount: 'Cantidad',
      fee: 'Tasa',
@ -110,8 +105,7 @@ module.exports = {
    plausible_deniability: 'Negación plausible...',
    storage_not_encrypted: 'Almacenamiento: no esta encriptado',
    password: 'Contraseña',
-    password_explain:
-      'Crea la contraseña que usarás para descifrar el almacenamiento',
+    password_explain: 'Crea la contraseña que usarás para descifrar el almacenamiento',
    retype_password: 'Ingresa la contraseña de nuevo',
    passwords_do_not_match: 'Contraseñas deben ser iguales',
    encrypt_storage: 'Cifrar almacenamiento',
--- a/loc/index.js
+++ b/loc/index.js
@ -21,13 +21,7 @@ let strings;
      locale = locale.split('-');
      locale = locale[0];
      console.log('current locale:', locale);
-      if (
-        locale === 'en' ||
-        locale === 'ru' ||
-        locale === 'ua' ||
-        locale === 'es' ||
-        locale === 'pt'
-      ) {
+      if (locale === 'en' || locale === 'ru' || locale === 'ua' || locale === 'es' || locale === 'pt') {
        strings.setLanguage(locale);
      } else {
        strings.setLanguage('en');
--- a/loc/pt_BR.js
+++ b/loc/pt_BR.js
@ -1,7 +1,6 @@
 module.exports = {
  _: {
-    storage_is_encrypted:
-      'O armazenamento está encriptado. Uma password é necessaria para desencriptar',
+    storage_is_encrypted: 'O armazenamento está encriptado. Uma password é necessaria para desencriptar',
    enter_password: 'Inserir password',
    bad_password: 'pasword errada, tentar novamente',
  },
@ -10,9 +9,7 @@ module.exports = {
      tabBarLabel: 'Wallets',
      app_name: 'Blue Wallet',
      title: 'Minhas Bitcoin Wallets',
-      header:
-        'Uma wallet representa um par entre um segredo (chave privada) e um endereço' +
-        'que pode partilhar para receber Bitcoin.',
+      header: 'Uma wallet representa um par entre um segredo (chave privada) e um endereço' + 'que pode partilhar para receber Bitcoin.',
      add: 'Adicionar Wallet',
    },
    add: {
@ -56,8 +53,7 @@ module.exports = {
    list: {
      tabBarLabel: 'Transações',
      title: 'Minhas Transações',
-      description:
-        'Uma lista de transações feitas ou recebidas nas suas wallets',
+      description: 'Uma lista de transações feitas ou recebidas nas suas wallets',
      conf: 'conf',
    },
    details: {
@ -89,8 +85,7 @@ module.exports = {
      title: 'Criar Transacção',
      error: 'Erro ao criar transação. Endereço inválido ou quantia?',
      go_back: 'Voltar',
-      this_is_hex:
-        'Este é o hex da transação, assinado e pronto para ser difundido para a network. Continuar?',
+      this_is_hex: 'Este é o hex da transação, assinado e pronto para ser difundido para a network. Continuar?',
      to: 'Para',
      amount: 'Quantia',
      fee: 'Taxa',
@ -132,16 +127,12 @@ module.exports = {
      'BlueWallet, esta vai abrir um armazenamento "falso". Que vai parecer ' +
      'legítimo a um terceiro, mas que secretamente vai manter o seu armazenamento principal ' +
      'com as moedas em segurança.',
-    help2:
-      'Este novo armazenamento é completamente funcional, e pode guardar ' +
-      'um valor minímo para parecer mais real.',
+    help2: 'Este novo armazenamento é completamente funcional, e pode guardar ' + 'um valor minímo para parecer mais real.',
    create_fake_storage: 'Criar armazenamento encriptado FALSO',
    go_back: 'Voltar',
    create_password: 'Criar password',
-    create_password_explanation:
-      'Password para armazenamento FALSO não deve coincidir com o principal',
-    password_should_not_match:
-      'Password para armazenamento FALSO não deve coincidir com o principal',
+    create_password_explanation: 'Password para armazenamento FALSO não deve coincidir com o principal',
+    password_should_not_match: 'Password para armazenamento FALSO não deve coincidir com o principal',
    retype_password: 'Inserir password novamente',
    passwords_do_not_match: 'Passwords não coincidem, tente novamente',
    success: 'Sucesso',
--- a/loc/pt_PT.js
+++ b/loc/pt_PT.js
@ -1,7 +1,6 @@
 module.exports = {
  _: {
-    storage_is_encrypted:
-      'O armazenamento está encriptado. Uma password é necessaria para desencriptar',
+    storage_is_encrypted: 'O armazenamento está encriptado. Uma password é necessaria para desencriptar',
    enter_password: 'Inserir password',
    bad_password: 'pasword errada, tente novamente',
  },
@ -10,9 +9,7 @@ module.exports = {
      tabBarLabel: 'Wallets',
      app_name: 'Blue Wallet',
      title: 'Minhas Bitcoin Wallets',
-      header:
-        'Uma wallet representa um par entre um segredo (chave privada) e um endereço' +
-        'que pode partilhar para receber Bitcoin.',
+      header: 'Uma wallet representa um par entre um segredo (chave privada) e um endereço' + 'que pode partilhar para receber Bitcoin.',
      add: 'Adicionar Wallet',
    },
    add: {
@ -56,8 +53,7 @@ module.exports = {
    list: {
      tabBarLabel: 'Transacções',
      title: 'Minhas Transacções',
-      description:
-        'Uma lista de transações feitas ou recebidas nas suas wallets',
+      description: 'Uma lista de transações feitas ou recebidas nas suas wallets',
      conf: 'conf',
    },
    details: {
@ -89,8 +85,7 @@ module.exports = {
      title: 'Criar Transacção',
      error: 'Erro ao criar transacção. Endereço inválido ou quantia?',
      go_back: 'Voltar',
-      this_is_hex:
-        'Este é o hex da transacção, assinado e pronto para ser difundido para a network. Continuar?',
+      this_is_hex: 'Este é o hex da transacção, assinado e pronto para ser difundido para a network. Continuar?',
      to: 'Para',
      amount: 'Quantia',
      fee: 'Taxa',
@ -132,16 +127,12 @@ module.exports = {
      'BlueWallet, esta vai abrir um armazenamento "falso". Que vai parecer ' +
      'legítimo a um terceiro, mas que secretamente vai manter o seu armazenamento principal ' +
      'com as moedas em segurança.',
-    help2:
-      'Este novo armazenamento é completamente funcional, e pode guardar ' +
-      'um valor minímo para parecer mais real.',
+    help2: 'Este novo armazenamento é completamente funcional, e pode guardar ' + 'um valor minímo para parecer mais real.',
    create_fake_storage: 'Criar armazenamento encriptado FALSO',
    go_back: 'Voltar',
    create_password: 'Criar password',
-    create_password_explanation:
-      'Password para armazenamento FALSO não deve coincidir com o principal',
-    password_should_not_match:
-      'Password para armazenamento FALSO não deve coincidir com o principal',
+    create_password_explanation: 'Password para armazenamento FALSO não deve coincidir com o principal',
+    password_should_not_match: 'Password para armazenamento FALSO não deve coincidir com o principal',
    retype_password: 'Inserir password novamente',
    passwords_do_not_match: 'Passwords não coincidem, tente novamente',
    success: 'Sucesso',
--- a/loc/ru.js
+++ b/loc/ru.js
@ -1,7 +1,6 @@
 module.exports = {
  _: {
-    storage_is_encrypted:
-      'Ваше хранилище зашифровано. Введите пароль для расшифровки',
+    storage_is_encrypted: 'Ваше хранилище зашифровано. Введите пароль для расшифровки',
    enter_password: 'Введите пароль',
    bad_password: 'Неверный пароль, попробуйте еще раз',
    months_ago: 'месяцев назад',
@ -14,8 +13,7 @@ module.exports = {
      tabBarLabel: 'Кошельки',
      app_name: 'BlueWallet',
      title: 'Мои Кошельки',
-      header:
-        'Кошелек это секретный (приватный) ключ, и соответствующий ему адрес на который можно получать биткоины',
+      header: 'Кошелек это секретный (приватный) ключ, и соответствующий ему адрес на который можно получать биткоины',
      add: 'Добавить Кошелек',
      create_a_wallet: 'Создать кошелек',
      create_a_wallet1: 'Это бесплатно и вы можете создать',
@ -95,11 +93,9 @@ module.exports = {
    },
    create: {
      title: 'Создать Транзакцию',
-      error:
-        'Ошибка при создании транзакции. Неправильный адрес назначения или недостаточно средств?',
+      error: 'Ошибка при создании транзакции. Неправильный адрес назначения или недостаточно средств?',
      go_back: 'Назад',
-      this_is_hex:
-        'Это данные транзакции. Транзакция подписана и готова быть транслирована в сеть. Продолжить?',
+      this_is_hex: 'Это данные транзакции. Транзакция подписана и готова быть транслирована в сеть. Продолжить?',
      to: 'Куда',
      amount: 'Сколько',
      fee: 'Комиссия',
@ -147,10 +143,8 @@ module.exports = {
    create_fake_storage: 'Создать фальшивое хранилище',
    go_back: 'Назад',
    create_password: 'Придумайте пароль',
-    create_password_explanation:
-      'Пароль для фальшивого хранилища не должен быть таким же как основной пароль',
-    password_should_not_match:
-      'Пароль для фальшивого хранилища не должен быть таким же как основной пароль',
+    create_password_explanation: 'Пароль для фальшивого хранилища не должен быть таким же как основной пароль',
+    password_should_not_match: 'Пароль для фальшивого хранилища не должен быть таким же как основной пароль',
    retype_password: 'Наберите пароль повторно',
    passwords_do_not_match: 'Пароли не совпадают, попробуйте еще раз',
    success: 'Операция успешна',
--- a/loc/ua.js
+++ b/loc/ua.js
@ -1,7 +1,6 @@
 module.exports = {
  _: {
-    storage_is_encrypted:
-      'Ваше сховище зашифроване. Введіть пароль для розшифровки',
+    storage_is_encrypted: 'Ваше сховище зашифроване. Введіть пароль для розшифровки',
    enter_password: 'Введіть пароль',
    bad_password: 'Невірний пароль, спробуйте ще раз',
  },
@ -10,8 +9,7 @@ module.exports = {
      tabBarLabel: 'Гаманці',
      app_name: 'BlueWallet',
      title: 'Мої Біткоїн Гаманці',
-      header:
-        'Гаманець це секретний (приватний) ключ, і відповідна йому адреса на яку можна отримувати біткоїни',
+      header: 'Гаманець це секретний (приватний) ключ, і відповідна йому адреса на яку можна отримувати біткоїни',
      add: 'Додати Гаманець',
    },
    add: {
@ -85,11 +83,9 @@ module.exports = {
    },
    create: {
      title: 'Створити Транзакцію',
-      error:
-        'Помилка при створенні транзакції. Невiрна адреса призначення або недостатньо коштiв?',
+      error: 'Помилка при створенні транзакції. Невiрна адреса призначення або недостатньо коштiв?',
      go_back: 'Назад',
-      this_is_hex:
-        'Це дані транзакції. Транзакція підписана і готова бути трансльована в мережу. Продовжити?',
+      this_is_hex: 'Це дані транзакції. Транзакція підписана і готова бути трансльована в мережу. Продовжити?',
      to: 'Куди',
      amount: 'Скільки',
      fee: 'Комісія',
@ -137,10 +133,8 @@ module.exports = {
    create_fake_storage: 'Створити фальшиве сховище',
    go_back: 'Назад',
    create_password: 'Придумайте пароль',
-    create_password_explanation:
-      'Пароль для фальшивого сховіща не має буті таким же як основній пароль',
-    password_should_not_match:
-      'Пароль для фальшивого сховища не має бути таким же як основний пароль',
+    create_password_explanation: 'Пароль для фальшивого сховіща не має буті таким же як основній пароль',
+    password_should_not_match: 'Пароль для фальшивого сховища не має бути таким же як основний пароль',
    retype_password: 'Наберіть пароль ще раз',
    passwords_do_not_match: 'Паролі не збігаються, спробуйте ще раз',
    success: 'Операція успішна',
--- a/models/signer.js
+++ b/models/signer.js
@ -9,15 +9,7 @@
 let bitcoinjs = require('bitcoinjs-lib');
 const toSatoshi = num => parseInt((num * 100000000).toFixed(0));

-exports.createSegwitTransaction = function(
-  utxos,
-  toAddress,
-  amount,
-  fixedFee,
-  WIF,
-  changeAddress,
-  sequence,
-) {
+exports.createSegwitTransaction = function(utxos, toAddress, amount, fixedFee, WIF, changeAddress, sequence) {
  changeAddress = changeAddress || exports.WIF2segwitAddress(WIF);
  if (sequence === undefined) {
    sequence = bitcoinjs.Transaction.DEFAULT_SEQUENCE;
@ -27,9 +19,7 @@ exports.createSegwitTransaction = function(
  let keyPair = bitcoinjs.ECPair.fromWIF(WIF);
  let pubKey = keyPair.getPublicKeyBuffer();
  let pubKeyHash = bitcoinjs.crypto.hash160(pubKey);
-  let redeemScript = bitcoinjs.script.witnessPubKeyHash.output.encode(
-    pubKeyHash,
-  );
+  let redeemScript = bitcoinjs.script.witnessPubKeyHash.output.encode(pubKeyHash);

  let txb = new bitcoinjs.TransactionBuilder();
  let unspentAmount = 0;
@ -45,33 +35,18 @@ exports.createSegwitTransaction = function(
  txb.addOutput(toAddress, amountToOutput);
  if (amountToOutput + feeInSatoshis < unspentAmount) {
    // sending less than we have, so the rest should go back
-    txb.addOutput(
-      changeAddress,
-      unspentAmount - amountToOutput - feeInSatoshis,
-    );
+    txb.addOutput(changeAddress, unspentAmount - amountToOutput - feeInSatoshis);
  }

  for (let c = 0; c < utxos.length; c++) {
-    txb.sign(
-      c,
-      keyPair,
-      redeemScript,
-      null,
-      parseInt((utxos[c].amount * 100000000).toFixed(0)),
-    );
+    txb.sign(c, keyPair, redeemScript, null, parseInt((utxos[c].amount * 100000000).toFixed(0)));
  }

  let tx = txb.build();
  return tx.toHex();
 };

-exports.createRBFSegwitTransaction = function(
-  txhex,
-  addressReplaceMap,
-  feeDelta,
-  WIF,
-  utxodata,
-) {
+exports.createRBFSegwitTransaction = function(txhex, addressReplaceMap, feeDelta, WIF, utxodata) {
  if (feeDelta < 0) {
    throw Error('replace-by-fee requires increased fee, not decreased');
  }
@ -89,11 +64,7 @@ exports.createRBFSegwitTransaction = function(
  // creating TX
  let txb = new bitcoinjs.TransactionBuilder();
  for (let unspent of tx.ins) {
-    txb.addInput(
-      unspent.hash.reverse().toString('hex'),
-      unspent.index,
-      highestSequence + 1,
-    );
+    txb.addInput(unspent.hash.reverse().toString('hex'), unspent.index, highestSequence + 1);
  }

  for (let o of tx.outs) {
@ -113,9 +84,7 @@ exports.createRBFSegwitTransaction = function(
  let keyPair = bitcoinjs.ECPair.fromWIF(WIF);
  let pubKey = keyPair.getPublicKeyBuffer();
  let pubKeyHash = bitcoinjs.crypto.hash160(pubKey);
-  let redeemScript = bitcoinjs.script.witnessPubKeyHash.output.encode(
-    pubKeyHash,
-  );
+  let redeemScript = bitcoinjs.script.witnessPubKeyHash.output.encode(pubKeyHash);
  for (let c = 0; c < tx.ins.length; c++) {
    let txid = tx.ins[c].hash.reverse().toString('hex');
    let index = tx.ins[c].index;
@ -131,12 +100,8 @@ exports.generateNewSegwitAddress = function() {
  let keyPair = bitcoinjs.ECPair.makeRandom();
  let pubKey = keyPair.getPublicKeyBuffer();

-  let witnessScript = bitcoinjs.script.witnessPubKeyHash.output.encode(
-    bitcoinjs.crypto.hash160(pubKey),
-  );
-  let scriptPubKey = bitcoinjs.script.scriptHash.output.encode(
-    bitcoinjs.crypto.hash160(witnessScript),
-  );
+  let witnessScript = bitcoinjs.script.witnessPubKeyHash.output.encode(bitcoinjs.crypto.hash160(pubKey));
+  let scriptPubKey = bitcoinjs.script.scriptHash.output.encode(bitcoinjs.crypto.hash160(witnessScript));
  let address = bitcoinjs.address.fromOutputScript(scriptPubKey);

  return {
@ -163,23 +128,12 @@ exports.URI = function(paymentInfo) {
 exports.WIF2segwitAddress = function(WIF) {
  let keyPair = bitcoinjs.ECPair.fromWIF(WIF);
  let pubKey = keyPair.getPublicKeyBuffer();
-  let witnessScript = bitcoinjs.script.witnessPubKeyHash.output.encode(
-    bitcoinjs.crypto.hash160(pubKey),
-  );
-  let scriptPubKey = bitcoinjs.script.scriptHash.output.encode(
-    bitcoinjs.crypto.hash160(witnessScript),
-  );
+  let witnessScript = bitcoinjs.script.witnessPubKeyHash.output.encode(bitcoinjs.crypto.hash160(pubKey));
+  let scriptPubKey = bitcoinjs.script.scriptHash.output.encode(bitcoinjs.crypto.hash160(witnessScript));
  return bitcoinjs.address.fromOutputScript(scriptPubKey);
 };

-exports.createTransaction = function(
-  utxos,
-  toAddress,
-  _amount,
-  _fixedFee,
-  WIF,
-  fromAddress,
-) {
+exports.createTransaction = function(utxos, toAddress, _amount, _fixedFee, WIF, fromAddress) {
  let fixedFee = toSatoshi(_fixedFee);
  let amountToOutput = toSatoshi(_amount - _fixedFee);
  let pk = bitcoinjs.ECPair.fromWIF(WIF); // eslint-disable-line new-cap
--- a/screen/about.js
+++ b/screen/about.js
@ -1,14 +1,6 @@
 import React, { Component } from 'react';
 import { ScrollView, Linking, Dimensions } from 'react-native';
-import {
-  BlueLoading,
-  BlueSpacing20,
-  BlueButton,
-  SafeBlueArea,
-  BlueCard,
-  BlueText,
-  BlueHeaderDefaultSub,
-} from '../BlueComponents';
+import { BlueLoading, BlueSpacing20, BlueButton, SafeBlueArea, BlueCard, BlueText, BlueHeaderDefaultSub } from '../BlueComponents';
 import PropTypes from 'prop-types';
 /** @type {AppStorage} */
 let BlueApp = require('../BlueApp');
@ -39,16 +31,11 @@ export default class About extends Component {

    return (
      <SafeBlueArea forceInset={{ horizontal: 'always' }} style={{ flex: 1 }}>
-        <BlueHeaderDefaultSub
-          leftText={'about'}
-          onClose={() => this.props.navigation.goBack()}
-        />
+        <BlueHeaderDefaultSub leftText={'about'} onClose={() => this.props.navigation.goBack()} />

        <BlueCard>
          <ScrollView maxHeight={height - 150}>
-            <BlueText h4>
-              BlueWallet is free and opensource Bitcoin wallet. Licensed MIT.
-            </BlueText>
+            <BlueText h4>BlueWallet is free and opensource Bitcoin wallet. Licensed MIT.</BlueText>

            <BlueButton
              icon={{
@ -81,9 +68,7 @@ export default class About extends Component {
                color: BlueApp.settings.buttonTextColor,
              }}
              onPress={() => {
-                Linking.openURL(
-                  'https://itunes.apple.com/us/app/bluewallet-bitcoin-wallet/id1376878040?l=ru&ls=1&mt=8',
-                );
+                Linking.openURL('https://itunes.apple.com/us/app/bluewallet-bitcoin-wallet/id1376878040?l=ru&ls=1&mt=8');
              }}
              title="Leave us a review on Appstore"
            />
--- a/screen/plausibledeniability.js
+++ b/screen/plausibledeniability.js
@ -2,14 +2,7 @@
 import React, { Component } from 'react';
 import { ScrollView } from 'react-native';
 import Ionicons from 'react-native-vector-icons/Ionicons';
-import {
-  BlueLoading,
-  BlueButton,
-  SafeBlueArea,
-  BlueCard,
-  BlueText,
-  BlueHeader,
-} from '../BlueComponents';
+import { BlueLoading, BlueButton, SafeBlueArea, BlueCard, BlueText, BlueHeader } from '../BlueComponents';
 import PropTypes from 'prop-types';
 /** @type {AppStorage} */
 let BlueApp = require('../BlueApp');
@ -21,11 +14,7 @@ export default class PlausibleDeniability extends Component {
  static navigationOptions = {
    tabBarLabel: loc.plausibledeniability.title,
    tabBarIcon: ({ tintColor, focused }) => (
-      <Ionicons
-        name={focused ? 'ios-settings' : 'ios-settings-outline'}
-        size={26}
-        style={{ color: tintColor }}
-      />
+      <Ionicons name={focused ? 'ios-settings' : 'ios-settings-outline'} size={26} style={{ color: tintColor }} />
    ),
  };

@ -73,14 +62,9 @@ export default class PlausibleDeniability extends Component {
              }}
              title={loc.plausibledeniability.create_fake_storage}
              onPress={async () => {
-                let p1 = await prompt(
-                  loc.plausibledeniability.create_password,
-                  loc.plausibledeniability.create_password_explanation,
-                );
+                let p1 = await prompt(loc.plausibledeniability.create_password, loc.plausibledeniability.create_password_explanation);
                if (p1 === BlueApp.cachedPassword) {
-                  return alert(
-                    loc.plausibledeniability.password_should_not_match,
-                  );
+                  return alert(loc.plausibledeniability.password_should_not_match);
                }

                if (!p1) {
--- a/screen/receive/details.js
+++ b/screen/receive/details.js
@ -70,10 +70,7 @@ export default class ReceiveDetails extends Component {
            return <BlueSpacing />;
          }
        })()}
-        <BlueHeaderDefaultSub
-          leftText={loc.receive.list.header}
-          onClose={() => this.props.navigation.goBack()}
-        />
+        <BlueHeaderDefaultSub leftText={loc.receive.list.header} onClose={() => this.props.navigation.goBack()} />

        <View
          style={{
--- a/screen/receive/list.js
+++ b/screen/receive/list.js
@ -1,13 +1,7 @@
 import React, { Component } from 'react';
 import { ListView, Dimensions } from 'react-native';
 import Ionicons from 'react-native-vector-icons/Ionicons';
-import {
-  BlueLoading,
-  SafeBlueArea,
-  BlueCard,
-  BlueListItem,
-  BlueHeader,
-} from '../../BlueComponents';
+import { BlueLoading, SafeBlueArea, BlueCard, BlueListItem, BlueHeader } from '../../BlueComponents';
 import PropTypes from 'prop-types';
 /** @type {AppStorage} */
 let BlueApp = require('../../BlueApp');
@ -20,11 +14,7 @@ export default class ReceiveList extends Component {
  static navigationOptions = {
    tabBarLabel: loc.receive.list.tabBarLabel,
    tabBarIcon: ({ tintColor, focused }) => (
-      <Ionicons
-        name={focused ? 'ios-cash' : 'ios-cash-outline'}
-        size={26}
-        style={{ color: tintColor }}
-      />
+      <Ionicons name={focused ? 'ios-cash' : 'ios-cash-outline'} size={26} style={{ color: tintColor }} />
    ),
  };

--- a/screen/selftest.js
+++ b/screen/selftest.js
@ -1,15 +1,7 @@
 import React, { Component } from 'react';
 import { ScrollView, View } from 'react-native';
 import Ionicons from 'react-native-vector-icons/Ionicons';
-import {
-  BlueLoading,
-  BlueSpacing20,
-  SafeBlueArea,
-  BlueCard,
-  BlueText,
-  BlueButton,
-  BlueHeader,
-} from '../BlueComponents';
+import { BlueLoading, BlueSpacing20, SafeBlueArea, BlueCard, BlueText, BlueButton, BlueHeader } from '../BlueComponents';
 import PropTypes from 'prop-types';
 import { SegwitP2SHWallet, LegacyWallet } from '../class';
 let BlueApp = require('../BlueApp');
@ -20,11 +12,7 @@ export default class Selftest extends Component {
  static navigationOptions = {
    tabBarLabel: 'Self test',
    tabBarIcon: ({ tintColor, focused }) => (
-      <Ionicons
-        name={focused ? 'ios-settings' : 'ios-settings-outline'}
-        size={26}
-        style={{ color: tintColor }}
-      />
+      <Ionicons name={focused ? 'ios-settings' : 'ios-settings-outline'} size={26} style={{ color: tintColor }} />
    ),
  };

@ -65,8 +53,7 @@ export default class Selftest extends Component {
    // utxos as received from blockcypher
    let utxos = [
      {
-        tx_hash:
-          '2f445cf016fa2772db7d473bff97515355b4e6148e1c980ce351d47cf54c517f',
+        tx_hash: '2f445cf016fa2772db7d473bff97515355b4e6148e1c980ce351d47cf54c517f',
        block_height: 523186,
        tx_input_n: -1,
        tx_output_n: 1,
@ -101,12 +88,10 @@ export default class Selftest extends Component {
        double_spend: false,
        ref_balance: 300000,
        spent: false,
-        tx_hash:
-          'dc3605040a03724bc584ed43bc22a559f5d32a1b0708ca05b20b9018fdd523ef',
+        tx_hash: 'dc3605040a03724bc584ed43bc22a559f5d32a1b0708ca05b20b9018fdd523ef',
        tx_input_n: -1,
        tx_output_n: 0,
-        txid:
-          'dc3605040a03724bc584ed43bc22a559f5d32a1b0708ca05b20b9018fdd523ef',
+        txid: 'dc3605040a03724bc584ed43bc22a559f5d32a1b0708ca05b20b9018fdd523ef',
        value: 200000,
        vout: 0,
      },
@ -118,12 +103,10 @@ export default class Selftest extends Component {
        double_spend: false,
        ref_balance: 100000,
        spent: false,
-        tx_hash:
-          'c473c104febfe6621804976d1082a1468c1198d0339e35f30a8ba1515d9eb017',
+        tx_hash: 'c473c104febfe6621804976d1082a1468c1198d0339e35f30a8ba1515d9eb017',
        tx_input_n: -1,
        tx_output_n: 0,
-        txid:
-          'c473c104febfe6621804976d1082a1468c1198d0339e35f30a8ba1515d9eb017',
+        txid: 'c473c104febfe6621804976d1082a1468c1198d0339e35f30a8ba1515d9eb017',
        value: 100000,
        vout: 0,
      },
@ -160,8 +143,7 @@ export default class Selftest extends Component {
    // utxos as received from blockcypher
    let utxo = [
      {
-        tx_hash:
-          '0f5eea78fb19e72b55bd119252ff29fc16c503d0e956a9c1b5b2ab0e95e0c323',
+        tx_hash: '0f5eea78fb19e72b55bd119252ff29fc16c503d0e956a9c1b5b2ab0e95e0c323',
        block_height: 514991,
        tx_input_n: -1,
        tx_output_n: 2,
@ -174,20 +156,12 @@ export default class Selftest extends Component {
      },
    ];

-    let tx = l.createTx(
-      utxo,
-      0.001,
-      0.0001,
-      '1QHf8Gp3wfmFiSdEX4FtrssCGR68diN1cj',
-    );
+    let tx = l.createTx(utxo, 0.001, 0.0001, '1QHf8Gp3wfmFiSdEX4FtrssCGR68diN1cj');
    let bitcoin = require('bitcoinjs-lib');
    let txDecoded = bitcoin.Transaction.fromHex(tx);
    let txid = txDecoded.getId();

-    if (
-      txid !==
-      '110f51d28d585e922adbf701cba802e549b8fe3a53fa5d62426ab42549c9b6de'
-    ) {
+    if (txid !== '110f51d28d585e922adbf701cba802e549b8fe3a53fa5d62426ab42549c9b6de') {
      errorMessage += 'created txid doesnt match; ';
      isOk = false;
    }
@ -234,10 +208,7 @@ export default class Selftest extends Component {
    let scriptSig = bitcoin.script.witnessPubKeyHash.output.encode(keyhash);
    let addressBytes = bitcoin.crypto.hash160(scriptSig);
    let outputScript = bitcoin.script.scriptHash.output.encode(addressBytes);
-    let address = bitcoin.address.fromOutputScript(
-      outputScript,
-      bitcoin.networks.bitcoin,
-    );
+    let address = bitcoin.address.fromOutputScript(outputScript, bitcoin.networks.bitcoin);

    if (address !== '3GcKN7q7gZuZ8eHygAhHrvPa5zZbG5Q1rK') {
      errorMessage += 'bip49 is not ok; ';
--- a/screen/send/create.js
+++ b/screen/send/create.js
@ -1,15 +1,7 @@
 import React, { Component } from 'react';
 import { TextInput } from 'react-native';
 import { Text, FormValidationMessage } from 'react-native-elements';
-import {
-  BlueLoading,
-  BlueSpacing20,
-  BlueButton,
-  SafeBlueArea,
-  BlueCard,
-  BlueText,
-  BlueSpacing,
-} from '../../BlueComponents';
+import { BlueLoading, BlueSpacing20, BlueButton, SafeBlueArea, BlueCard, BlueText, BlueSpacing } from '../../BlueComponents';
 import PropTypes from 'prop-types';
 let BigNumber = require('bignumber.js');
 let BlueApp = require('../../BlueApp');
@ -56,13 +48,7 @@ export default class SendCreate extends Component {
      utxo = this.state.fromWallet.utxo;
      let startTime = Date.now();

-      tx = this.state.fromWallet.createTx(
-        utxo,
-        this.state.amount,
-        this.state.fee,
-        this.state.address,
-        this.state.memo,
-      );
+      tx = this.state.fromWallet.createTx(utxo, this.state.amount, this.state.fee, this.state.address, this.state.memo);
      let endTime = Date.now();
      console.log('create tx ', (endTime - startTime) / 1000, 'sec');

@ -113,8 +99,7 @@ export default class SendCreate extends Component {
    } else {
      this.setState({ broadcastErrorMessage: '' });
      this.setState({
-        broadcastSuccessMessage:
-          'Success! TXID: ' + JSON.stringify(result.result),
+        broadcastSuccessMessage: 'Success! TXID: ' + JSON.stringify(result.result),
      });
    }
  }
@ -124,19 +109,11 @@ export default class SendCreate extends Component {
      return (
        <SafeBlueArea style={{ flex: 1, paddingTop: 20 }}>
          <BlueSpacing />
-          <BlueCard
-            title={loc.send.create.title}
-            style={{ alignItems: 'center', flex: 1 }}
-          >
+          <BlueCard title={loc.send.create.title} style={{ alignItems: 'center', flex: 1 }}>
            <BlueText>{loc.send.create.error}</BlueText>
-            <FormValidationMessage>
-              {this.state.errorMessage}
-            </FormValidationMessage>
+            <FormValidationMessage>{this.state.errorMessage}</FormValidationMessage>
          </BlueCard>
-          <BlueButton
-            onPress={() => this.props.navigation.goBack()}
-            title={loc.send.create.go_back}
-          />
+          <BlueButton onPress={() => this.props.navigation.goBack()} title={loc.send.create.go_back} />
        </SafeBlueArea>
      );
    }
@ -148,10 +125,7 @@ export default class SendCreate extends Component {
    return (
      <SafeBlueArea style={{ flex: 1, paddingTop: 20 }}>
        <BlueSpacing />
-        <BlueCard
-          title={loc.send.create.title}
-          style={{ alignItems: 'center', flex: 1 }}
-        >
+        <BlueCard title={loc.send.create.title} style={{ alignItems: 'center', flex: 1 }}>
          <BlueText>{loc.send.create.this_is_hex}</BlueText>

          <TextInput
@ -182,8 +156,7 @@ export default class SendCreate extends Component {
            {loc.send.create.tx_size}: {this.state.size} Bytes
          </BlueText>
          <BlueText>
-            {loc.send.create.satoshi_per_byte}: {this.state.satoshiPerByte}{' '}
-            Sat/B
+            {loc.send.create.satoshi_per_byte}: {this.state.satoshiPerByte} Sat/B
          </BlueText>
          <BlueText>
            {loc.send.create.memo}: {this.state.memo}
@ -210,12 +183,8 @@ export default class SendCreate extends Component {
          title={loc.send.create.go_back}
        />

-        <FormValidationMessage>
-          {this.state.broadcastErrorMessage}
-        </FormValidationMessage>
-        <Text style={{ padding: 0, color: '#0f0' }}>
-          {this.state.broadcastSuccessMessage}
-        </Text>
+        <FormValidationMessage>{this.state.broadcastErrorMessage}</FormValidationMessage>
+        <Text style={{ padding: 0, color: '#0f0' }}>{this.state.broadcastSuccessMessage}</Text>
      </SafeBlueArea>
    );
  }
--- a/screen/send/details.js
+++ b/screen/send/details.js
@ -38,11 +38,9 @@ export default class SendDetails extends Component {
    super(props);
    let startTime = Date.now();
    let address;
-    if (props.navigation.state.params)
-      address = props.navigation.state.params.address;
+    if (props.navigation.state.params) address = props.navigation.state.params.address;
    let fromAddress;
-    if (props.navigation.state.params)
-      fromAddress = props.navigation.state.params.fromAddress;
+    if (props.navigation.state.params) fromAddress = props.navigation.state.params.fromAddress;
    let fromWallet = {};

    let startTime2 = Date.now();
@ -164,9 +162,7 @@ export default class SendDetails extends Component {
    if (!this.state.fromWallet.getAddress) {
      return (
        <View style={{ flex: 1, paddingTop: 20 }}>
-          <Text>
-            System error: Source wallet not found (this should never happen)
-          </Text>
+          <Text>System error: Source wallet not found (this should never happen)</Text>
        </View>
      );
    }
@ -180,10 +176,7 @@ export default class SendDetails extends Component {
            return <BlueSpacing />;
          }
        })()}
-        <BlueCard
-          title={loc.send.details.title}
-          style={{ alignItems: 'center', flex: 1 }}
-        >
+        <BlueCard title={loc.send.details.title} style={{ alignItems: 'center', flex: 1 }}>
          <BlueFormInputAddress
            style={{ width: 250 }}
            onChangeText={text => this.setState({ address: text })}
@ -192,18 +185,14 @@ export default class SendDetails extends Component {
          />

          <BlueFormInput
-            onChangeText={text =>
-              this.setState({ amount: text.replace(',', '.') })
-            }
+            onChangeText={text => this.setState({ amount: text.replace(',', '.') })}
            keyboardType={'numeric'}
            placeholder={loc.send.details.amount_placeholder}
            value={this.state.amount + ''}
          />

          <BlueFormInput
-            onChangeText={text =>
-              this.setState({ fee: text.replace(',', '.') })
-            }
+            onChangeText={text => this.setState({ fee: text.replace(',', '.') })}
            keyboardType={'numeric'}
            placeholder={loc.send.details.fee_placeholder}
            value={this.state.fee + ''}
@ -218,12 +207,7 @@ export default class SendDetails extends Component {
          <BlueSpacing20 />
          <BlueText>
            {loc.send.details.remaining_balance}:{' '}
-            {this.recalculateAvailableBalance(
-              this.state.fromWallet.getBalance(),
-              this.state.amount,
-              this.state.fee,
-            )}{' '}
-            BTC
+            {this.recalculateAvailableBalance(this.state.fromWallet.getBalance(), this.state.amount, this.state.fee)} BTC
          </BlueText>
        </BlueCard>

@ -231,10 +215,7 @@ export default class SendDetails extends Component {

        <View style={{ flex: 1, flexDirection: 'row' }}>
          <View style={{ flex: 0.33 }}>
-            <BlueButton
-              onPress={() => this.props.navigation.goBack()}
-              title={loc.send.details.cancel}
-            />
+            <BlueButton onPress={() => this.props.navigation.goBack()} title={loc.send.details.cancel} />
          </View>
          <View style={{ flex: 0.33 }}>
            <BlueButton
@ -249,10 +230,7 @@ export default class SendDetails extends Component {
            />
          </View>
          <View style={{ flex: 0.33 }}>
-            <BlueButton
-              onPress={() => this.createTransaction()}
-              title={loc.send.details.create}
-            />
+            <BlueButton onPress={() => this.createTransaction()} title={loc.send.details.create} />
          </View>
        </View>
      </SafeBlueArea>
--- a/screen/send/list.js
+++ b/screen/send/list.js
@ -1,12 +1,7 @@
 import React, { Component } from 'react';
 import { Dimensions, ActivityIndicator, View, ListView } from 'react-native';
 import Ionicons from 'react-native-vector-icons/Ionicons';
-import {
-  SafeBlueArea,
-  BlueCard,
-  BlueListItem,
-  BlueHeader,
-} from '../../BlueComponents';
+import { SafeBlueArea, BlueCard, BlueListItem, BlueHeader } from '../../BlueComponents';
 import PropTypes from 'prop-types';
 let EV = require('../../events');
 /** @type {AppStorage} */
@ -19,11 +14,7 @@ export default class SendList extends Component {
  static navigationOptions = {
    tabBarLabel: loc.send.list.tabBarLabel,
    tabBarIcon: ({ tintColor, focused }) => (
-      <Ionicons
-        name={focused ? 'md-paper-plane' : 'md-paper-plane'}
-        size={26}
-        style={{ color: tintColor }}
-      />
+      <Ionicons name={focused ? 'md-paper-plane' : 'md-paper-plane'} size={26} style={{ color: tintColor }} />
    ),
  };

--- a/screen/send/scanQrAddress.js
+++ b/screen/send/scanQrAddress.js
@ -1,12 +1,6 @@
 /* global alert */
 import React from 'react';
-import {
-  Text,
-  ActivityIndicator,
-  Button,
-  View,
-  TouchableOpacity,
-} from 'react-native';
+import { Text, ActivityIndicator, Button, View, TouchableOpacity } from 'react-native';
 import { Camera, Permissions } from 'expo';
 import PropTypes from 'prop-types';
 let EV = require('../../events');
@ -61,11 +55,7 @@ export default class CameraExample extends React.Component {
    } else {
      return (
        <View style={{ flex: 1 }}>
-          <Camera
-            style={{ flex: 1 }}
-            type={this.state.type}
-            onBarCodeRead={ret => this.onBarCodeRead(ret)}
-          >
+          <Camera style={{ flex: 1 }} type={this.state.type} onBarCodeRead={ret => this.onBarCodeRead(ret)}>
            <View
              style={{
                flex: 1,
@ -81,18 +71,11 @@ export default class CameraExample extends React.Component {
                }}
                onPress={() => {
                  this.setState({
-                    type:
-                      this.state.type === Camera.Constants.Type.back
-                        ? Camera.Constants.Type.front
-                        : Camera.Constants.Type.back,
+                    type: this.state.type === Camera.Constants.Type.back ? Camera.Constants.Type.front : Camera.Constants.Type.back,
                  });
                }}
              >
-                <Button
-                  style={{ fontSize: 18, marginBottom: 10 }}
-                  title="Go back"
-                  onPress={() => this.props.navigation.goBack()}
-                />
+                <Button style={{ fontSize: 18, marginBottom: 10 }} title="Go back" onPress={() => this.props.navigation.goBack()} />
              </TouchableOpacity>
            </View>
          </Camera>
--- a/screen/settings.js
+++ b/screen/settings.js
@ -2,14 +2,7 @@
 import React, { Component } from 'react';
 import { ScrollView, View, Picker } from 'react-native';
 import { FormValidationMessage } from 'react-native-elements';
-import {
-  BlueLoading,
-  BlueButton,
-  SafeBlueArea,
-  BlueCard,
-  BlueText,
-  BlueHeaderDefaultSub,
-} from '../BlueComponents';
+import { BlueLoading, BlueButton, SafeBlueArea, BlueCard, BlueText, BlueHeaderDefaultSub } from '../BlueComponents';
 import PropTypes from 'prop-types';
 /** @type {AppStorage} */
 let BlueApp = require('../BlueApp');
@ -43,10 +36,7 @@ export default class Settings extends Component {

    return (
      <SafeBlueArea forceInset={{ horizontal: 'always' }} style={{ flex: 1 }}>
-        <BlueHeaderDefaultSub
-          leftText={loc.settings.header}
-          onClose={() => this.props.navigation.goBack()}
-        />
+        <BlueHeaderDefaultSub leftText={loc.settings.header} onClose={() => this.props.navigation.goBack()} />

        <BlueCard>
          <ScrollView maxHeight={450}>
@ -56,9 +46,7 @@ export default class Settings extends Component {
                  <View>
                    <BlueText>{loc.settings.storage_encrypted}</BlueText>
                    <BlueButton
-                      onPress={() =>
-                        this.props.navigation.navigate('PlausibleDeniability')
-                      }
+                      onPress={() => this.props.navigation.navigate('PlausibleDeniability')}
                      title={loc.settings.plausible_deniability}
                    />
                  </View>
@ -66,9 +54,7 @@ export default class Settings extends Component {
              } else {
                return (
                  <View>
-                    <FormValidationMessage>
-                      {loc.settings.storage_not_encrypted}
-                    </FormValidationMessage>
+                    <FormValidationMessage>{loc.settings.storage_not_encrypted}</FormValidationMessage>
                    <BlueButton
                      icon={{
                        name: 'shield',
@ -77,18 +63,12 @@ export default class Settings extends Component {
                      }}
                      onPress={async () => {
                        this.setState({ isLoading: true });
-                        let p1 = await prompt(
-                          loc.settings.password,
-                          loc.settings.password_explain,
-                        );
+                        let p1 = await prompt(loc.settings.password, loc.settings.password_explain);
                        if (!p1) {
                          this.setState({ isLoading: false });
                          return;
                        }
-                        let p2 = await prompt(
-                          loc.settings.password,
-                          loc.settings.retype_password,
-                        );
+                        let p2 = await prompt(loc.settings.password, loc.settings.retype_password);
                        if (p1 === p2) {
                          await BlueApp.encryptStorage(p1);
                          this.setState({
@ -107,10 +87,7 @@ export default class Settings extends Component {
              }
            })()}

-            <BlueButton
-              onPress={() => this.props.navigation.navigate('About')}
-              title={loc.settings.about}
-            />
+            <BlueButton onPress={() => this.props.navigation.navigate('About')} title={loc.settings.about} />
          </ScrollView>

          <Picker
@ -122,31 +99,11 @@ export default class Settings extends Component {
              return this.setState({ language: itemValue });
            }}
          >
-            <Picker.Item
-              color={BlueApp.settings.foregroundColor}
-              label="English"
-              value="en"
-            />
-            <Picker.Item
-              color={BlueApp.settings.foregroundColor}
-              label="Русский"
-              value="ru"
-            />
-            <Picker.Item
-              color={BlueApp.settings.foregroundColor}
-              label="Українська"
-              value="ua"
-            />
-            <Picker.Item
-              color={BlueApp.settings.foregroundColor}
-              label="Spanish"
-              value="es"
-            />
-            <Picker.Item
-              color={BlueApp.settings.foregroundColor}
-              label="Portuguese"
-              value="pt"
-            />
+            <Picker.Item color={BlueApp.settings.foregroundColor} label="English" value="en" />
+            <Picker.Item color={BlueApp.settings.foregroundColor} label="Русский" value="ru" />
+            <Picker.Item color={BlueApp.settings.foregroundColor} label="Українська" value="ua" />
+            <Picker.Item color={BlueApp.settings.foregroundColor} label="Spanish" value="es" />
+            <Picker.Item color={BlueApp.settings.foregroundColor} label="Portuguese" value="pt" />
          </Picker>
        </BlueCard>
      </SafeBlueArea>
--- a/screen/transactions/RBF-create.js
+++ b/screen/transactions/RBF-create.js
@ -2,15 +2,7 @@
 import React, { Component } from 'react';
 import { TextInput } from 'react-native';
 import { Text, FormValidationMessage } from 'react-native-elements';
-import {
-  BlueLoading,
-  BlueSpacing20,
-  BlueButton,
-  SafeBlueArea,
-  BlueCard,
-  BlueText,
-  BlueSpacing,
-} from '../../BlueComponents';
+import { BlueLoading, BlueSpacing20, BlueButton, SafeBlueArea, BlueCard, BlueText, BlueSpacing } from '../../BlueComponents';
 import PropTypes from 'prop-types';
 let BigNumber = require('bignumber.js');
 let bitcoinjs = require('bitcoinjs-lib');
@ -30,8 +22,7 @@ export default class SendCreate extends Component {
    this.state = {
      isLoading: true,
      feeDelta: props.navigation.state.params.feeDelta,
-      newDestinationAddress:
-        props.navigation.state.params.newDestinationAddress,
+      newDestinationAddress: props.navigation.state.params.newDestinationAddress,
      txid: props.navigation.state.params.txid,
      sourceTx: props.navigation.state.params.sourceTx,
      fromWallet: props.navigation.state.params.sourceWallet,
@ -90,9 +81,7 @@ export default class SendCreate extends Component {
        transferAmount = transferAmount.div(100000000).toString(10);
      }
    }
-    let oldFee = new BigNumber(
-      totalInputAmountSatoshi - totalOutputAmountSatoshi,
-    );
+    let oldFee = new BigNumber(totalInputAmountSatoshi - totalOutputAmountSatoshi);
    oldFee = parseFloat(oldFee.div(100000000).toString(10));

    console.log('changeAddress = ', changeAddress);
@ -113,14 +102,7 @@ export default class SendCreate extends Component {
      // more responsive
      let tx;
      try {
-        tx = this.state.fromWallet.createTx(
-          utxo,
-          transferAmount,
-          newFee,
-          this.state.newDestinationAddress,
-          false,
-          lastSequence,
-        );
+        tx = this.state.fromWallet.createTx(utxo, transferAmount, newFee, this.state.newDestinationAddress, false, lastSequence);
        BlueApp.tx_metadata[this.state.txid] = txMetadata || {};
        BlueApp.tx_metadata[this.state.txid]['last_sequence'] = lastSequence;

@ -132,10 +114,7 @@ export default class SendCreate extends Component {
        BlueApp.tx_metadata[txid]['txhex'] = tx;
        //
        BlueApp.saveToDisk();
-        console.log(
-          'BlueApp.txMetadata[this.state.txid]',
-          BlueApp.tx_metadata[this.state.txid],
-        );
+        console.log('BlueApp.txMetadata[this.state.txid]', BlueApp.tx_metadata[this.state.txid]);
      } catch (err) {
        console.log(err);
        return this.setState({
@ -173,8 +152,7 @@ export default class SendCreate extends Component {
    } else {
      this.setState({ broadcastErrorMessage: '' });
      this.setState({
-        broadcastSuccessMessage:
-          'Success! TXID: ' + JSON.stringify(result.result || result.txid),
+        broadcastSuccessMessage: 'Success! TXID: ' + JSON.stringify(result.result || result.txid),
      });
    }
  }
@ -184,21 +162,11 @@ export default class SendCreate extends Component {
      return (
        <SafeBlueArea style={{ flex: 1, paddingTop: 20 }}>
          <BlueSpacing />
-          <BlueCard
-            title={'Replace Transaction'}
-            style={{ alignItems: 'center', flex: 1 }}
-          >
-            <BlueText>
-              Error creating transaction. Invalid address or send amount?
-            </BlueText>
-            <FormValidationMessage>
-              {this.state.errorMessage}
-            </FormValidationMessage>
+          <BlueCard title={'Replace Transaction'} style={{ alignItems: 'center', flex: 1 }}>
+            <BlueText>Error creating transaction. Invalid address or send amount?</BlueText>
+            <FormValidationMessage>{this.state.errorMessage}</FormValidationMessage>
          </BlueCard>
-          <BlueButton
-            onPress={() => this.props.navigation.goBack()}
-            title="Go back"
-          />
+          <BlueButton onPress={() => this.props.navigation.goBack()} title="Go back" />
        </SafeBlueArea>
      );
    }
@ -218,10 +186,7 @@ export default class SendCreate extends Component {

          <BlueText h4>This transaction is not replaceable</BlueText>

-          <BlueButton
-            onPress={() => this.props.navigation.goBack()}
-            title="Back"
-          />
+          <BlueButton onPress={() => this.props.navigation.goBack()} title="Back" />
        </SafeBlueArea>
      );
    }
@ -229,14 +194,8 @@ export default class SendCreate extends Component {
    return (
      <SafeBlueArea style={{ flex: 1, paddingTop: 20 }}>
        <BlueSpacing />
-        <BlueCard
-          title={'Replace Transaction'}
-          style={{ alignItems: 'center', flex: 1 }}
-        >
-          <BlueText>
-            This is transaction hex, signed and ready to be broadcast to the
-            network. Continue?
-          </BlueText>
+        <BlueCard title={'Replace Transaction'} style={{ alignItems: 'center', flex: 1 }}>
+          <BlueText>This is transaction hex, signed and ready to be broadcast to the network. Continue?</BlueText>

          <TextInput
            style={{
@ -253,33 +212,19 @@ export default class SendCreate extends Component {

          <BlueSpacing20 />

-          <BlueText style={{ paddingTop: 20 }}>
-            To: {this.state.newDestinationAddress}
-          </BlueText>
+          <BlueText style={{ paddingTop: 20 }}>To: {this.state.newDestinationAddress}</BlueText>
          <BlueText>Amount: {this.state.amount} BTC</BlueText>
          <BlueText>Fee: {this.state.fee} BTC</BlueText>
          <BlueText>TX size: {this.state.size} Bytes</BlueText>
          <BlueText>satoshiPerByte: {this.state.satoshiPerByte} Sat/B</BlueText>
        </BlueCard>

-        <BlueButton
-          icon={{ name: 'megaphone', type: 'octicon' }}
-          onPress={() => this.broadcast()}
-          title="Broadcast"
-        />
+        <BlueButton icon={{ name: 'megaphone', type: 'octicon' }} onPress={() => this.broadcast()} title="Broadcast" />

-        <BlueButton
-          icon={{ name: 'arrow-left', type: 'octicon' }}
-          onPress={() => this.props.navigation.goBack()}
-          title="Go back"
-        />
+        <BlueButton icon={{ name: 'arrow-left', type: 'octicon' }} onPress={() => this.props.navigation.goBack()} title="Go back" />

-        <FormValidationMessage>
-          {this.state.broadcastErrorMessage}
-        </FormValidationMessage>
-        <Text style={{ padding: 20, color: '#080' }}>
-          {this.state.broadcastSuccessMessage}
-        </Text>
+        <FormValidationMessage>{this.state.broadcastErrorMessage}</FormValidationMessage>
+        <Text style={{ padding: 20, color: '#080' }}>{this.state.broadcastSuccessMessage}</Text>
      </SafeBlueArea>
    );
  }
--- a/screen/transactions/RBF.js
+++ b/screen/transactions/RBF.js
@ -1,14 +1,6 @@
 import React, { Component } from 'react';
 import { ActivityIndicator, View } from 'react-native';
-import {
-  BlueSpacing20,
-  BlueButton,
-  SafeBlueArea,
-  BlueCard,
-  BlueText,
-  BlueFormInput,
-  BlueSpacing,
-} from '../../BlueComponents';
+import { BlueSpacing20, BlueButton, SafeBlueArea, BlueCard, BlueText, BlueFormInput, BlueSpacing } from '../../BlueComponents';
 import PropTypes from 'prop-types';
 /** @type {AppStorage} */
 let BlueApp = require('../../BlueApp');
@ -21,8 +13,7 @@ export default class RBF extends Component {
  constructor(props) {
    super(props);
    let txid;
-    if (props.navigation.state.params)
-      txid = props.navigation.state.params.txid;
+    if (props.navigation.state.params) txid = props.navigation.state.params.txid;

    let sourceWallet;
    let sourceTx;
@ -108,10 +99,7 @@ export default class RBF extends Component {

          <BlueText h4>This transaction is not replaceable</BlueText>

-          <BlueButton
-            onPress={() => this.props.navigation.goBack()}
-            title="Back"
-          />
+          <BlueButton onPress={() => this.props.navigation.goBack()} title="Back" />
        </SafeBlueArea>
      );
    }
@ -119,13 +107,8 @@ export default class RBF extends Component {
    if (!this.state.sourceWallet.getAddress) {
      return (
        <SafeBlueArea style={{ flex: 1, paddingTop: 20 }}>
-          <BlueText>
-            System error: Source wallet not found (this should never happen)
-          </BlueText>
-          <BlueButton
-            onPress={() => this.props.navigation.goBack()}
-            title="Back"
-          />
+          <BlueText>System error: Source wallet not found (this should never happen)</BlueText>
+          <BlueButton onPress={() => this.props.navigation.goBack()} title="Back" />
        </SafeBlueArea>
      );
    }
@ -133,14 +116,8 @@ export default class RBF extends Component {
    return (
      <SafeBlueArea style={{ flex: 1, paddingTop: 20 }}>
        <BlueSpacing />
-        <BlueCard
-          title={'Replace By Fee'}
-          style={{ alignItems: 'center', flex: 1 }}
-        >
-          <BlueText>
-            RBF allows you to increase fee on already sent but not confirmed
-            transaction, thus speeding up mining
-          </BlueText>
+        <BlueCard title={'Replace By Fee'} style={{ alignItems: 'center', flex: 1 }}>
+          <BlueText>RBF allows you to increase fee on already sent but not confirmed transaction, thus speeding up mining</BlueText>
          <BlueSpacing20 />

          <BlueText>
@ -149,9 +126,7 @@ export default class RBF extends Component {
          <BlueSpacing20 />

          <BlueFormInput
-            onChangeText={text =>
-              this.setState({ newDestinationAddress: text })
-            }
+            onChangeText={text => this.setState({ newDestinationAddress: text })}
            placeholder={'receiver address here'}
            value={this.state.newDestinationAddress}
          />
@ -166,17 +141,11 @@ export default class RBF extends Component {

        <View style={{ flex: 1, flexDirection: 'row', paddingTop: 20 }}>
          <View style={{ flex: 0.33 }}>
-            <BlueButton
-              onPress={() => this.props.navigation.goBack()}
-              title="Cancel"
-            />
+            <BlueButton onPress={() => this.props.navigation.goBack()} title="Cancel" />
          </View>
          <View style={{ flex: 0.33 }} />
          <View style={{ flex: 0.33 }}>
-            <BlueButton
-              onPress={() => this.createTransaction()}
-              title="Create"
-            />
+            <BlueButton onPress={() => this.createTransaction()} title="Create" />
          </View>
        </View>
      </SafeBlueArea>
--- a/screen/transactions/details.js
+++ b/screen/transactions/details.js
@ -77,10 +77,7 @@ export default class TransactionsDetails extends Component {
            return <BlueSpacing />;
          }
        })()}
-        <BlueHeaderDefaultSub
-          leftText={loc.transactions.details.title}
-          onClose={() => this.props.navigation.goBack()}
-        />
+        <BlueHeaderDefaultSub leftText={loc.transactions.details.title} onClose={() => this.props.navigation.goBack()} />

        <BlueCard>
          {(() => {
@ -88,9 +85,7 @@ export default class TransactionsDetails extends Component {
              if (BlueApp.tx_metadata[this.state.tx.hash]['memo']) {
                return (
                  <View>
-                    <BlueText h4>
-                      {BlueApp.tx_metadata[this.state.tx.hash]['memo']}
-                    </BlueText>
+                    <BlueText h4>{BlueApp.tx_metadata[this.state.tx.hash]['memo']}</BlueText>
                    <BlueSpacing20 />
                  </View>
                );
@ -99,14 +94,10 @@ export default class TransactionsDetails extends Component {
          })()}

          <BlueText h4>{loc.transactions.details.from}:</BlueText>
-          <BlueText style={{ marginBottom: 10 }}>
-            {this.state.from.join(', ')}
-          </BlueText>
+          <BlueText style={{ marginBottom: 10 }}>{this.state.from.join(', ')}</BlueText>

          <BlueText h4>{loc.transactions.details.to}:</BlueText>
-          <BlueText style={{ marginBottom: 10 }}>
-            {this.state.to.join(', ')}
-          </BlueText>
+          <BlueText style={{ marginBottom: 10 }}>{this.state.to.join(', ')}</BlueText>

          <BlueText>Txid: {this.state.tx.hash}</BlueText>
          <BlueText>received: {this.state.tx.received}</BlueText>
--- a/screen/transactions/list.js
+++ b/screen/transactions/list.js
@ -2,14 +2,7 @@ import React, { Component } from 'react';
 import { ListView, Dimensions } from 'react-native';
 import Ionicons from 'react-native-vector-icons/Ionicons';
 import { Header, Icon } from 'react-native-elements';
-import {
-  BlueLoading,
-  BlueList,
-  SafeBlueArea,
-  BlueCard,
-  BlueText,
-  BlueListItem,
-} from '../../BlueComponents';
+import { BlueLoading, BlueList, SafeBlueArea, BlueCard, BlueText, BlueListItem } from '../../BlueComponents';
 import PropTypes from 'prop-types';
 let loc = require('../../loc');
 let EV = require('../../events');
@ -23,11 +16,7 @@ export default class TransactionsList extends Component {
  static navigationOptions = {
    tabBarLabel: loc.transactions.list.tabBarLabel,
    tabBarIcon: ({ tintColor, focused }) => (
-      <Ionicons
-        name={focused ? 'ios-list-box' : 'ios-list-box-outline'}
-        size={26}
-        style={{ color: tintColor }}
-      />
+      <Ionicons name={focused ? 'ios-list-box' : 'ios-list-box-outline'} size={26} style={{ color: tintColor }} />
    ),
  };

@ -114,18 +103,10 @@ export default class TransactionsList extends Component {
            text: this.state.final_balance + ' BTC',
            style: { color: BlueApp.settings.foregroundColor, fontSize: 25 },
          }}
-          rightComponent={
-            <Icon
-              name="refresh"
-              color={BlueApp.settings.foregroundColor}
-              onPress={() => this.refresh()}
-            />
-          }
+          rightComponent={<Icon name="refresh" color={BlueApp.settings.foregroundColor} onPress={() => this.refresh()} />}
        />
        <BlueCard title={loc.transactions.list.title}>
-          <BlueText style={{ marginBottom: 10 }}>
-            {loc.transactions.list.description}
-          </BlueText>
+          <BlueText style={{ marginBottom: 10 }}>{loc.transactions.list.description}</BlueText>

          <BlueList>
            <ListView
@ -138,25 +119,14 @@ export default class TransactionsList extends Component {
                    avatar={
                      <Icon
                        color={(() => {
-                          return (
-                            (rowData.confirmations &&
-                              ((rowData.value < 0 && '#900') || '#080')) ||
-                            '#ebebeb'
-                          );
+                          return (rowData.confirmations && ((rowData.value < 0 && '#900') || '#080')) || '#ebebeb';
                        })()}
                        name={(() => {
-                          return (
-                            (rowData.value < 0 && 'call-made') ||
-                            'call-received'
-                          );
+                          return (rowData.value < 0 && 'call-made') || 'call-received';
                        })()}
                      />
                    }
-                    title={
-                      rowData.value / 100000000 +
-                      ' BTC' +
-                      this.txMemo(rowData.hash)
-                    }
+                    title={rowData.value / 100000000 + ' BTC' + this.txMemo(rowData.hash)}
                    subtitle={
                      rowData.received
                        .replace(['T'], ' ')
--- a/screen/wallets/add.js
+++ b/screen/wallets/add.js
@ -1,15 +1,7 @@
 import { SegwitP2SHWallet } from '../../class';
 import React, { Component } from 'react';
 import { ActivityIndicator, Dimensions, View } from 'react-native';
-import {
-  BlueSpacing,
-  BlueButton,
-  SafeBlueArea,
-  BlueCard,
-  BlueText,
-  BlueHeaderDefaultSub,
-  BlueSpacing40,
-} from '../../BlueComponents';
+import { BlueSpacing, BlueButton, SafeBlueArea, BlueCard, BlueText, BlueHeaderDefaultSub, BlueSpacing40 } from '../../BlueComponents';
 import PropTypes from 'prop-types';
 let EV = require('../../events');
 let A = require('../../analytics');
@ -53,10 +45,7 @@ export default class WalletsAdd extends Component {
    }

    return (
-      <SafeBlueArea
-        forceInset={{ horizontal: 'always' }}
-        style={{ flex: 1, paddingTop: 40 }}
-      >
+      <SafeBlueArea forceInset={{ horizontal: 'always' }} style={{ flex: 1, paddingTop: 40 }}>
        {(() => {
          if (isIpad) {
            return <BlueSpacing40 />;
@ -64,10 +53,7 @@ export default class WalletsAdd extends Component {
            return <BlueSpacing />;
          }
        })()}
-        <BlueHeaderDefaultSub
-          leftText={loc.wallets.add.title}
-          onClose={() => this.props.navigation.goBack()}
-        />
+        <BlueHeaderDefaultSub leftText={loc.wallets.add.title} onClose={() => this.props.navigation.goBack()} />

        <BlueCard>
          <BlueText>{loc.wallets.add.description}</BlueText>
--- a/screen/wallets/details.js
+++ b/screen/wallets/details.js
@ -79,23 +79,14 @@ export default class WalletDetails extends Component {
      <SafeBlueArea style={{ flex: 1 }}>
        <BlueSpacingVariable />

-        <BlueHeaderDefaultSub
-          leftText={loc.wallets.details.title}
-          onClose={() => this.props.navigation.goBack()}
-        />
+        <BlueHeaderDefaultSub leftText={loc.wallets.details.title} onClose={() => this.props.navigation.goBack()} />

        <BlueCard style={{ alignItems: 'center', flex: 1 }}>
          <BlueFormLabel>{loc.wallets.details.address}:</BlueFormLabel>
-          <BlueFormInputAddress
-            value={this.state.wallet.getAddress()}
-            editable
-          />
+          <BlueFormInputAddress value={this.state.wallet.getAddress()} editable />

          <BlueFormLabel>{loc.wallets.details.type}:</BlueFormLabel>
-          <BlueFormInput
-            value={this.state.wallet.getTypeReadable()}
-            editable={false}
-          />
+          <BlueFormInput value={this.state.wallet.getTypeReadable()} editable={false} />

          <BlueFormLabel>{loc.wallets.details.label}:</BlueFormLabel>
          <BlueFormInput
--- a/screen/wallets/export.js
+++ b/screen/wallets/export.js
@ -1,14 +1,7 @@
 import React, { Component } from 'react';
 import { Dimensions, ActivityIndicator, View } from 'react-native';
 import QRCode from 'react-native-qrcode';
-import {
-  BlueSpacing,
-  BlueSpacing40,
-  SafeBlueArea,
-  BlueCard,
-  BlueText,
-  BlueHeaderDefaultSub,
-} from '../../BlueComponents';
+import { BlueSpacing, BlueSpacing40, SafeBlueArea, BlueCard, BlueText, BlueHeaderDefaultSub } from '../../BlueComponents';
 import PropTypes from 'prop-types';
 /** @type {AppStorage} */
 let BlueApp = require('../../BlueApp');
@ -80,10 +73,7 @@ export default class WalletExport extends Component {
            return <BlueSpacing />;
          }
        })()}
-        <BlueHeaderDefaultSub
-          leftText={loc.wallets.export.title}
-          onClose={() => this.props.navigation.goBack()}
-        />
+        <BlueHeaderDefaultSub leftText={loc.wallets.export.title} onClose={() => this.props.navigation.goBack()} />

        <BlueCard style={{ alignItems: 'center', flex: 1 }}>
          <BlueText>{this.state.wallet.getAddress()}</BlueText>
@ -93,9 +83,7 @@ export default class WalletExport extends Component {
            bgColor={BlueApp.settings.foregroundColor}
            fgColor={BlueApp.settings.brandingColor}
          />
-          <BlueText>
-            {this.state.wallet.getSecret()} [Wallet Import Format]
-          </BlueText>
+          <BlueText>{this.state.wallet.getSecret()} [Wallet Import Format]</BlueText>
        </BlueCard>
      </SafeBlueArea>
    );
--- a/screen/wallets/list.js
+++ b/screen/wallets/list.js
@ -94,9 +94,7 @@ export default class WalletsList extends Component {
        showReceiveButton: showReceive,
        showSendButton: showSend,
        showRereshButton: (BlueApp.getWallets().length > 0 && true) || false,
-        dataSource: ds.cloneWithRows(
-          BlueApp.getTransactions(this.lastSnappedTo || 0),
-        ),
+        dataSource: ds.cloneWithRows(BlueApp.getTransactions(this.lastSnappedTo || 0)),
      });
    }, 1);
  }
@ -179,10 +177,7 @@ export default class WalletsList extends Component {
      if (wallets && wallets[index] && wallets[index].timeToRefresh()) {
        console.log('snapped to, and now its time to refresh wallet #', index);
        await wallets[index].fetchBalance();
-        if (
-          oldBalance !== wallets[index].getBalance() ||
-          wallets[index].getUnconfirmedBalance() !== 0
-        ) {
+        if (oldBalance !== wallets[index].getBalance() || wallets[index].getUnconfirmedBalance() !== 0) {
          console.log('balance changed, thus txs too');
          // balance changed, thus txs too
          await wallets[index].fetchTransactions();
@ -211,10 +206,7 @@ export default class WalletsList extends Component {

    return (
      <SafeBlueArea>
-        <BlueHeaderDefaultMain
-          leftText={loc.wallets.list.title}
-          onClose={() => navigate('Settings')}
-        />
+        <BlueHeaderDefaultMain leftText={loc.wallets.list.title} onClose={() => navigate('Settings')} />

        <WalletsCarousel
          data={BlueApp.getWallets().concat(false)}
@ -246,11 +238,7 @@ export default class WalletsList extends Component {
                  </Text>
                  {(() => {
                    if (this.state.showRereshButton) {
-                      return (
-                        <BlueRefreshIcon
-                          onPress={() => this.refreshTransactions()}
-                        />
-                      );
+                      return <BlueRefreshIcon onPress={() => this.refreshTransactions()} />;
                    }
                  })()}
                </View>
@ -263,10 +251,7 @@ export default class WalletsList extends Component {
                  }}
                >
                  {(() => {
-                    if (
-                      BlueApp.getTransactions(this.lastSnappedTo || 0)
-                        .length === 0
-                    ) {
+                    if (BlueApp.getTransactions(this.lastSnappedTo || 0).length === 0) {
                      return (
                        <View>
                          <Text
@ -325,16 +310,10 @@ export default class WalletsList extends Component {
                                );
                              }
                            })()}
-                            title={loc.transactionTimeToReadable(
-                              rowData.received,
-                            )}
+                            title={loc.transactionTimeToReadable(rowData.received)}
                            subtitle={
-                              (rowData.confirmations < 200
-                                ? loc.transactions.list.conf +
-                                  ': ' +
-                                  rowData.confirmations +
-                                  ' '
-                                : '') + this.txMemo(rowData.hash)
+                              (rowData.confirmations < 200 ? loc.transactions.list.conf + ': ' + rowData.confirmations + ' ' : '') +
+                              this.txMemo(rowData.hash)
                            }
                            onPress={() => {
                              navigate('TransactionDetails', {
@ -355,10 +334,7 @@ export default class WalletsList extends Component {
                              top: -7,
                              fontWeight: '600',
                              fontSize: 16,
-                              color:
-                                rowData.value / 100000000 < 0
-                                  ? BlueApp.settings.foregroundColor
-                                  : '#37c0a1',
+                              color: rowData.value / 100000000 < 0 ? BlueApp.settings.foregroundColor : '#37c0a1',
                            }}
                          />
                        );
--- a/screen/wallets/scanQrWif.js
+++ b/screen/wallets/scanQrWif.js
@ -1,12 +1,6 @@
 /* global alert */
 import React from 'react';
-import {
-  Text,
-  ActivityIndicator,
-  Button,
-  View,
-  TouchableOpacity,
-} from 'react-native';
+import { Text, ActivityIndicator, Button, View, TouchableOpacity } from 'react-native';
 import { BlueText, SafeBlueArea, BlueButton } from '../../BlueComponents';
 import { Camera, Permissions } from 'expo';
 import { SegwitP2SHWallet, LegacyWallet } from '../../class';
@ -46,31 +40,18 @@ export default class ScanQrWif extends React.Component {
        message: loc.wallets.scanQrWif.decoding,
      });
      shold_stop_bip38 = undefined; // eslint-disable-line
-      let password = await prompt(
-        loc.wallets.scanQrWif.input_password,
-        loc.wallets.scanQrWif.password_explain,
-      );
+      let password = await prompt(loc.wallets.scanQrWif.input_password, loc.wallets.scanQrWif.password_explain);
      if (!password) {
        return;
      }
      let that = this;
      try {
-        let decryptedKey = await bip38.decrypt(ret.data, password, function(
-          status,
-        ) {
+        let decryptedKey = await bip38.decrypt(ret.data, password, function(status) {
          that.setState({
-            message:
-              loc.wallets.scanQrWif.decoding +
-              '... ' +
-              status.percent.toString().substr(0, 4) +
-              ' %',
+            message: loc.wallets.scanQrWif.decoding + '... ' + status.percent.toString().substr(0, 4) + ' %',
          });
        });
-        ret.data = wif.encode(
-          0x80,
-          decryptedKey.privateKey,
-          decryptedKey.compressed,
-        );
+        ret.data = wif.encode(0x80, decryptedKey.privateKey, decryptedKey.compressed);
      } catch (e) {
        console.log(e.message);
        this.setState({ message: false });
@ -93,10 +74,7 @@ export default class ScanQrWif extends React.Component {
    let newLegacyWallet = new LegacyWallet();
    newLegacyWallet.setSecret(ret.data);

-    if (
-      newWallet.getAddress() === false ||
-      newLegacyWallet.getAddress() === false
-    ) {
+    if (newWallet.getAddress() === false || newLegacyWallet.getAddress() === false) {
      alert(loc.wallets.scanQrWif.bad_wif);
      return;
    }
@ -108,23 +86,13 @@ export default class ScanQrWif extends React.Component {
    if (newLegacyWallet.getBalance()) {
      newLegacyWallet.setLabel(loc.wallets.scanQrWif.imported_legacy);
      BlueApp.wallets.push(newLegacyWallet);
-      alert(
-        loc.wallets.scanQrWif.imported_wif +
-          ret.data +
-          loc.wallets.scanQrWif.with_address +
-          newLegacyWallet.getAddress(),
-      );
+      alert(loc.wallets.scanQrWif.imported_wif + ret.data + loc.wallets.scanQrWif.with_address + newLegacyWallet.getAddress());
    } else {
      await newWallet.fetchBalance();
      await newWallet.fetchTransactions();
      newWallet.setLabel(loc.wallets.scanQrWif.imported_segwit);
      BlueApp.wallets.push(newWallet);
-      alert(
-        loc.wallets.scanQrWif.imported_wif +
-          ret.data +
-          loc.wallets.scanQrWif.with_address +
-          newWallet.getAddress(),
-      );
+      alert(loc.wallets.scanQrWif.imported_wif + ret.data + loc.wallets.scanQrWif.with_address + newWallet.getAddress());
    }
    await BlueApp.saveToDisk();
    this.props.navigation.popToTop();
@ -185,11 +153,7 @@ export default class ScanQrWif extends React.Component {
              );
            } else {
              return (
-                <Camera
-                  style={{ flex: 1 }}
-                  type={this.state.type}
-                  onBarCodeRead={ret => this.onBarCodeRead(ret)}
-                >
+                <Camera style={{ flex: 1 }} type={this.state.type} onBarCodeRead={ret => this.onBarCodeRead(ret)}>
                  <View
                    style={{
                      flex: 1,
@ -205,10 +169,7 @@ export default class ScanQrWif extends React.Component {
                      }}
                      onPress={() => {
                        this.setState({
-                          type:
-                            this.state.type === Camera.Constants.Type.back
-                              ? Camera.Constants.Type.front
-                              : Camera.Constants.Type.back,
+                          type: this.state.type === Camera.Constants.Type.back ? Camera.Constants.Type.front : Camera.Constants.Type.back,
                        });
                      }}
                    >