Merge branch 'master' into add-sentry-to-devel

2024-11-28 03:08:30 +00:00 · 2018-09-21 14:34:01 +02:00 · 2018-09-21 14:34:01 +02:00 · 976222476b
commit 976222476b
parent 22c17f0e38 1c2a4fb3f0
58 changed files with 1149 additions and 578 deletions
--- a/.eslintrc
+++ b/.eslintrc
@ -4,11 +4,15 @@
        "plugin:flowtype/recommended",
        "plugin:jest/recommended"
    ],
+    "globals": {
+        "COMMITHASH": true
+    },
    "env": {
        "browser": true,
        "jest": true
    },
    "rules": {
+        "no-use-before-define": 0,
        "no-plusplus": 0,
        "class-methods-use-this": 0,
        "react/require-default-props": 0,
--- a/jest.config.js
+++ b/jest.config.js
@ -1,11 +1,19 @@
 module.exports = {
    rootDir: './src',
+    automock: false,
+    coverageDirectory: 'coverage/',
    collectCoverage: true,
    testURL: 'http://localhost',
    modulePathIgnorePatterns: [
        'node_modules',
+        'utils/windowUtils.js',
+        'utils/promiseUtils.js',
+        'utils/networkUtils.js',
    ],
    collectCoverageFrom: [
        'utils/**.js',
    ],
+    setupFiles: [
+        './support/setupJest.js',
+    ],
 };
--- a/package.json
+++ b/package.json
@ -34,9 +34,12 @@
        "ethereumjs-tx": "^1.3.3",
        "ethereumjs-units": "^0.2.0",
        "ethereumjs-util": "^5.1.4",
+        "git-revision-webpack-plugin": "^3.0.3",
+        "flow-webpack-plugin": "^1.2.0",
        "hdkey": "^0.8.0",
        "html-webpack-plugin": "^3.2.0",
        "http-server": "^0.11.1",
+        "jest-fetch-mock": "^1.6.5",
        "npm-run-all": "^4.1.3",
        "prop-types": "^15.6.2",
        "raf": "^3.4.0",
@ -51,8 +54,7 @@
        "react-router-redux": "next",
        "react-scale-text": "^1.2.2",
        "react-select": "2.0.0",
-        "react-sticky-el": "^1.0.20",
-        "react-transition-group": "^2.2.1",
+        "react-transition-group": "^2.4.0",
        "redbox-react": "^1.6.0",
        "redux": "4.0.0",
        "redux-logger": "^3.0.6",
--- a/public/data/appConfig.json
+++ b/public/data/appConfig.json
@ -58,11 +58,11 @@

    "fiatValueTickers": [
        { 
-            "network": "ethereum",
+            "network": "eth",
            "url": "https://api.coinmarketcap.com/v1/ticker/ethereum/"
        },
        { 
-            "network": "ethereum-classic",
+            "network": "etc",
            "url": "https://api.coinmarketcap.com/v1/ticker/ethereum-classic/"
        }
    ],
--- a/src/actions/BlockchainActions.js
+++ b/src/actions/BlockchainActions.js
@ -111,7 +111,7 @@ export const onBlockMined = (coinInfo: any): PromiseAction<void> => async (dispa
                    dispatch( Web3Actions.updateAccount(accounts[i], a, network) )
                } else {
                    // there are no new txs, just update block
-                    dispatch( AccountsActions.update( { ...accounts[i], ...a }) );
+                    dispatch( AccountsActions.update( { ...accounts[i], block: a.block }) );

                    // HACK: since blockbook can't work with smart contracts for now
                    // try to update tokens balances added to this account using Web3
--- a/src/actions/LocalStorageActions.js
+++ b/src/actions/LocalStorageActions.js
@ -21,7 +21,7 @@ export type StorageAction = {
    type: typeof STORAGE.READY,
    config: Config,
    tokens: TokensCollection,
-    ERC20Abi: Array<Object>
+    ERC20Abi: Array<TokensCollection>
 } | {
    type: typeof STORAGE.SAVE,
    network: string,
@ -148,7 +148,6 @@ export function loadTokensFromJSON(): AsyncAction {
                });
            }

-
            dispatch({
                type: STORAGE.READY,
                config,
--- a/src/actions/RouterActions.js
+++ b/src/actions/RouterActions.js
@ -0,0 +1,304 @@
+/* @flow */
+
+import { push, LOCATION_CHANGE } from 'react-router-redux';
+import { routes } from 'support/routes';
+
+import type {
+    RouterLocationState,
+    Device,
+    TrezorDevice,
+    ThunkAction,
+    PayloadAction,
+    Dispatch,
+    GetState,
+} from 'flowtype';
+import type { RouterAction } from 'react-router-redux';
+
+/*
+* Parse url string to RouterLocationState object (key/value)
+*/
+export const pathToParams = (path: string): PayloadAction<RouterLocationState> => (): RouterLocationState => {
+    // split url into parts
+    const parts: Array<string> = path.split('/').slice(1);
+    const params: RouterLocationState = {};
+    // return empty params
+    if (parts.length < 1 || path === '/') return params;
+
+    // map parts to params by key/value
+    // assuming that url is in format: "/key/value"
+    for (let i = 0, len = parts.length; i < len; i += 2) {
+        params[parts[i]] = parts[i + 1] || parts[i];
+    }
+
+    // check for special case: /device/device-id:instance-id
+    if (params.hasOwnProperty('device')) {
+        const isClonedDevice: Array<string> = params.device.split(':');
+        if (isClonedDevice.length > 1) {
+            const [device, instance] = isClonedDevice;
+            params.device = device;
+            params.deviceInstance = instance;
+        }
+    }
+    return params;
+};
+
+/*
+* RouterLocationState validation
+* Check if requested device or network exists in reducers
+*/
+export const paramsValidation = (params: RouterLocationState): PayloadAction<boolean> => (dispatch: Dispatch, getState: GetState): boolean => {
+    // validate requested device
+    if (params.hasOwnProperty('device')) {
+        const { devices } = getState();
+
+        let device: ?TrezorDevice;
+        if (params.hasOwnProperty('deviceInstance')) {
+            device = devices.find(d => d.features && d.features.device_id === params.device && d.instance === parseInt(params.deviceInstance, 10));
+        } else {
+            device = devices.find(d => d.path === params.device || (d.features && d.features.device_id === params.device));
+        }
+
+        if (!device) return false;
+    }
+
+    // validate requested network
+    if (params.hasOwnProperty('network')) {
+        const { config } = getState().localStorage;
+        const coin = config.coins.find(c => c.network === params.network);
+        if (!coin) return false;
+        if (!params.account) return false;
+    }
+
+    // validate requested account
+    // TODO: only if discovery on this network is completed
+    // if (params.hasOwnProperty('account')) {
+
+    // }
+    return true;
+};
+
+/*
+* Composing url string from given RouterLocationState object
+* Filters unrecognized fields and sorting in correct order
+*/
+export const paramsToPath = (params: RouterLocationState): PayloadAction<?string> => (): ?string => {
+    // get patterns (fields) from routes and sort them by complexity
+    const patterns: Array<Array<string>> = routes.map(r => r.fields).sort((a, b) => (a.length > b.length ? -1 : 1));
+
+    // find pattern
+    const keys: Array<string> = Object.keys(params);
+    let patternToUse: ?Array<string>;
+    let i: number;
+    for (i = 0; i < patterns.length; i++) {
+        const pattern = patterns[i];
+        const match: Array<string> = keys.filter(key => pattern.indexOf(key) >= 0);
+        if (match.length === pattern.length) {
+            patternToUse = pattern;
+            break;
+        }
+    }
+
+    // pattern not found, redirect back
+    if (!patternToUse) return null;
+
+    // compose url string from pattern
+    let url: string = '';
+    patternToUse.forEach((field) => {
+        if (field === params[field]) {
+            // standalone (odd) fields
+            url += `/${field}`;
+        } else {
+            url += `/${field}/${params[field]}`;
+            if (field === 'device') {
+                if (params.hasOwnProperty('deviceInstance')) {
+                    url += `:${params.deviceInstance}`;
+                }
+            }
+        }
+    });
+    return url;
+};
+
+export const getValidUrl = (action: RouterAction): PayloadAction<string> => (dispatch: Dispatch, getState: GetState): string => {
+    const { location } = getState().router;
+
+    // redirect to landing page (loading screen)
+    // and wait until application is ready
+    if (!location) return '/';
+
+    const requestedUrl = action.payload.pathname;
+    // Corner case: LOCATION_CHANGE was called but pathname didn't changed (redirect action from RouterService)
+    if (requestedUrl === location.pathname) return requestedUrl;
+
+    // Modal is opened
+    // redirect to previous url
+    if (getState().modal.opened) {
+        // Corner case: modal is opened and currentParams are still valid
+        // example 1 (valid blocking): url changed while passphrase modal opened but device is still connected (we want user to finish this action)
+        // example 2 (invalid blocking): url changes while passphrase modal opened because device disconnect
+        const currentParams = dispatch(pathToParams(location.pathname));
+        const currentParamsAreValid = dispatch(paramsValidation(currentParams));
+        if (currentParamsAreValid) { return location.pathname; }
+    }
+
+    // there are no connected devices or application isn't ready or initialization error occurred
+    // redirect to landing page
+    const shouldBeLandingPage = getState().devices.length < 1 || !getState().wallet.ready || getState().connect.error !== null;
+    const landingPageUrl = dispatch(isLandingPageUrl(requestedUrl));
+    if (shouldBeLandingPage) {
+        return !landingPageUrl ? '/' : requestedUrl;
+    }
+
+    // Disallow displaying landing page
+    // redirect to previous url
+    if (!shouldBeLandingPage && landingPageUrl) {
+        return location.pathname;
+    }
+
+    // Regular url change during application live cycle
+    const requestedParams = dispatch(pathToParams(requestedUrl));
+    const requestedParamsAreValid: boolean = dispatch(paramsValidation(requestedParams));
+
+    // Requested params are not valid
+    // Neither device or network doesn't exists
+    if (!requestedParamsAreValid) {
+        return location.pathname;
+    }
+
+    // Compose valid url from requested params
+    const composedUrl = dispatch(paramsToPath(requestedParams));
+    return composedUrl || location.pathname;
+};
+
+
+/*
+* Utility used in "selectDevice" and "selectFirstAvailableDevice"
+* sorting device array by "ts" (timestamp) field
+*/
+const sortDevices = (devices: Array<TrezorDevice>): Array<TrezorDevice> => devices.sort((a, b) => {
+    if (!a.ts || !b.ts) {
+        return -1;
+    }
+    return a.ts > b.ts ? -1 : 1;
+});
+
+/*
+* Compose url from given device object and redirect
+*/
+export const selectDevice = (device: TrezorDevice | Device): ThunkAction => (dispatch: Dispatch, getState: GetState): void => {
+    let url: ?string;
+    if (!device.features) {
+        url = `/device/${device.path}/${device.type === 'unreadable' ? 'unreadable' : 'acquire'}`;
+    } else if (device.features.bootloader_mode) {
+        url = `/device/${device.path}/bootloader`;
+    } else if (!device.features.initialized) {
+        url = `/device/${device.features.device_id}/initialize`;
+    } else if (typeof device.instance === 'number') {
+        url = `/device/${device.features.device_id}:${device.instance}`;
+    } else {
+        url = `/device/${device.features.device_id}`;
+        // make sure that device is not TrezorDevice type
+        if (!device.hasOwnProperty('ts')) {
+            // it is device from trezor-connect triggered by DEVICE.CONNECT event
+            // need to lookup if there are unavailable instances
+            const available: Array<TrezorDevice> = getState().devices.filter(d => d.path === device.path);
+            const latest: Array<TrezorDevice> = sortDevices(available);
+            if (latest.length > 0 && latest[0].instance) {
+                url += `:${latest[0].instance}`;
+            }
+        }
+    }
+
+    const currentParams: RouterLocationState = getState().router.location.state;
+    const requestedParams = dispatch(pathToParams(url));
+    if (currentParams.device !== requestedParams.device || currentParams.deviceInstance !== requestedParams.deviceInstance) {
+        dispatch(goto(url));
+    }
+};
+
+/*
+* Try to find first available device using order:
+* 1. First unacquired
+* 2. First connected
+* 3. Saved with latest timestamp
+* OR redirect to landing page
+*/
+export const selectFirstAvailableDevice = (): ThunkAction => (dispatch: Dispatch, getState: GetState): void => {
+    const { devices } = getState();
+    if (devices.length > 0) {
+        const unacquired = devices.find(d => !d.features);
+        if (unacquired) {
+            dispatch(selectDevice(unacquired));
+        } else {
+            const latest: Array<TrezorDevice> = sortDevices(devices);
+            const firstConnected: ?TrezorDevice = latest.find(d => d.connected);
+            dispatch(selectDevice(firstConnected || latest[0]));
+        }
+    } else {
+        dispatch(gotoLandingPage());
+    }
+};
+
+/*
+* Internal method. redirect to given url
+*/
+const goto = (url: string): ThunkAction => (dispatch: Dispatch, getState: GetState): void => {
+    if (getState().router.location.pathname !== url) {
+        dispatch(push(url));
+    }
+};
+
+/*
+* Check if requested OR current url is landing page
+*/
+export const isLandingPageUrl = ($url?: string): PayloadAction<boolean> => (dispatch: Dispatch, getState: GetState): boolean => {
+    let url: ?string = $url;
+    if (typeof url !== 'string') {
+        url = getState().router.location.pathname;
+    }
+    // TODO: add more landing page cases/urls to config.json (like /tools etc)
+    return (url === '/' || url === '/bridge');
+};
+
+/*
+* Try to redirect to landing page
+*/
+export const gotoLandingPage = (): ThunkAction => (dispatch: Dispatch): void => {
+    const isLandingPage = dispatch(isLandingPageUrl());
+    if (!isLandingPage) {
+        dispatch(goto('/'));
+    }
+};
+
+/*
+* Go to given device settings page
+*/
+export const gotoDeviceSettings = (device: TrezorDevice): ThunkAction => (dispatch: Dispatch): void => {
+    if (device.features) {
+        const devUrl: string = `${device.features.device_id}${device.instance ? `:${device.instance}` : ''}`;
+        dispatch(goto(`/device/${devUrl}/settings`));
+    }
+};
+
+/*
+* Try to redirect to initial url
+*/
+export const setInitialUrl = (): PayloadAction<boolean> => (dispatch: Dispatch, getState: GetState): boolean => {
+    const { initialPathname } = getState().wallet;
+    if (typeof initialPathname === 'string' && !dispatch(isLandingPageUrl(initialPathname))) {
+        const valid = dispatch(getValidUrl({
+            type: LOCATION_CHANGE,
+            payload: {
+                pathname: initialPathname,
+                hash: '',
+                search: '',
+                state: {},
+            },
+        }));
+        if (valid === initialPathname) {
+            dispatch(goto(valid));
+            return true;
+        }
+    }
+    return false;
+};
--- a/src/actions/SelectedAccountActions.js
+++ b/src/actions/SelectedAccountActions.js
@ -7,6 +7,9 @@ import * as SEND from 'actions/constants/send';
 import * as NOTIFICATION from 'actions/constants/notification';
 import * as PENDING from 'actions/constants/pendingTx';

+import * as SendFormActions from 'actions/SendFormActions';
+import * as SessionStorageActions from 'actions/SessionStorageActions';
+
 import * as stateUtils from 'reducers/utils';

 import type {
@ -16,8 +19,6 @@ import type {
    Dispatch,
    State,
 } from 'flowtype';
-import * as SendFormActions from './SendFormActions';
-

 export type SelectedAccountAction = {
    type: typeof ACCOUNT.DISPOSE,
@ -42,17 +43,16 @@ export const updateSelectedValues = (prevState: State, action: Action): AsyncAct
        // SessionStorageActions.clear(location.pathname);
    }

+    if (prevState.sendForm !== state.sendForm) {
+        dispatch(SessionStorageActions.save());
+    }
+
    // handle devices state change (from trezor-connect events or location change)
    if (locationChange
            || prevState.accounts !== state.accounts
            || prevState.discovery !== state.discovery
            || prevState.tokens !== state.tokens
            || prevState.pending !== state.pending) {
-        if (locationChange) {
-            // dispose current account view
-            dispatch(dispose());
-        }
-
        const account = stateUtils.getSelectedAccount(state);
        const network = stateUtils.getSelectedNetwork(state);
        const discovery = stateUtils.getDiscoveryProcess(state);
--- a/src/actions/SendFormActions.js
+++ b/src/actions/SendFormActions.js
@ -13,6 +13,7 @@ import { initialState } from 'reducers/SendFormReducer';
 import { findToken } from 'reducers/TokensReducer';
 import { findDevice, getPendingAmount, getPendingNonce } from 'reducers/utils';
 import * as stateUtils from 'reducers/utils';
+import { validateAddress } from 'utils/ethUtils';

 import type {
    Dispatch,
@ -345,34 +346,21 @@ export const validation = (props: Props): void => {
    if (state.untouched) return;
    // valid address
    if (state.touched.address) {
-        /* if (state.address.length < 1) {
-            errors.address = 'Address is not set';
-        } else if (!EthereumjsUtil.isValidAddress(state.address)) {
-            errors.address = 'Address is not valid';
-        } else {
-            // address warning or info are set in addressValidation ThunkAction
-            // do not override this
+        const addressError = validateAddress(state.address);
+        if (addressError) {
+            errors.address = addressError;
+        }
+
+        // address warning or info may be set in addressValidation ThunkAction
+        // do not override them
        if (state.warnings.address) {
            warnings.address = state.warnings.address;
-            } else if (state.infos.address) {
-                infos.address = state.infos.address;
        }
-        } */

-        /* eslint (no-lonely-if) */
-        if (state.address.length < 1) {
-            errors.address = 'Address is not set';
-        } else if (!EthereumjsUtil.isValidAddress(state.address)) {
-            errors.address = 'Address is not valid';
-        } else if (state.warnings.address) {
-            // address warning or info are set in addressValidation ThunkAction
-            // do not override this
-            warnings.address = state.warnings.address;
        if (state.infos.address) {
            infos.address = state.infos.address;
        }
    }
-    }

    // valid amount
    // https://stackoverflow.com/a/42701461
@ -792,7 +780,7 @@ export const onSend = (): AsyncAction => async (dispatch: Dispatch, getState: Ge
        data: currentState.data,
        gasLimit: currentState.gasLimit,
        gasPrice: currentState.gasPrice,
-        nonce
+        nonce,
    }));

    const selected: ?TrezorDevice = getState().wallet.selectedDevice;
@ -831,7 +819,7 @@ export const onSend = (): AsyncAction => async (dispatch: Dispatch, getState: Ge
        const serializedTx: string = await dispatch(serializeEthereumTx(txData));
        const push = await TrezorConnect.pushTransaction({
            tx: serializedTx,
-            coin: network.network
+            coin: network.network,
        });

        if (!push.success) {
--- a/src/actions/TrezorConnectActions.js
+++ b/src/actions/TrezorConnectActions.js
@ -1,13 +1,11 @@
 /* @flow */
 import TrezorConnect, {
-    UI, DEVICE, DEVICE_EVENT, UI_EVENT, TRANSPORT_EVENT, BLOCKCHAIN_EVENT
+    DEVICE, DEVICE_EVENT, UI_EVENT, TRANSPORT_EVENT, BLOCKCHAIN_EVENT,
 } from 'trezor-connect';
 import * as CONNECT from 'actions/constants/TrezorConnect';
 import * as NOTIFICATION from 'actions/constants/notification';
-import * as WALLET from 'actions/constants/wallet';
 import { getDuplicateInstanceNumber } from 'reducers/utils';
-
-import { push } from 'react-router-redux';
+import * as RouterActions from 'actions/RouterActions';

 import type {
    DeviceMessage,
@ -28,7 +26,6 @@ import type {
    AsyncAction,
    Device,
    TrezorDevice,
-    RouterLocationState,
 } from 'flowtype';
 import * as DiscoveryActions from './DiscoveryActions';

@ -79,19 +76,11 @@ export type TrezorConnectAction = {
    type: typeof CONNECT.STOP_ACQUIRING,
 };

-
-const sortDevices = (devices: Array<TrezorDevice>): Array<TrezorDevice> => devices.sort((a, b) => {
-    if (!a.ts || !b.ts) {
-        return -1;
-    }
-    return a.ts > b.ts ? -1 : 1;
-});
-
 export const init = (): AsyncAction => async (dispatch: Dispatch, getState: GetState): Promise<void> => {
    // set listeners
    TrezorConnect.on(DEVICE_EVENT, (event: DeviceMessage): void => {
        // post event to reducers
-        const type: DeviceMessageType = event.type; // assert flow type
+        const type: DeviceMessageType = event.type; // eslint-disable-line prefer-destructuring
        dispatch({
            type,
            device: event.payload,
@ -100,7 +89,7 @@ export const init = (): AsyncAction => async (dispatch: Dispatch, getState: GetS

    TrezorConnect.on(UI_EVENT, (event: UiMessage): void => {
        // post event to reducers
-        const type: UiMessageType = event.type; // assert flow type
+        const type: UiMessageType = event.type; // eslint-disable-line prefer-destructuring
        dispatch({
            type,
            payload: event.payload,
@ -109,7 +98,7 @@ export const init = (): AsyncAction => async (dispatch: Dispatch, getState: GetS

    TrezorConnect.on(TRANSPORT_EVENT, (event: TransportMessage): void => {
        // post event to reducers
-        const type: TransportMessageType = event.type; // assert flow type
+        const type: TransportMessageType = event.type; // eslint-disable-line prefer-destructuring
        dispatch({
            type,
            payload: event.payload,
@ -118,21 +107,22 @@ export const init = (): AsyncAction => async (dispatch: Dispatch, getState: GetS

    TrezorConnect.on(BLOCKCHAIN_EVENT, (event: BlockchainMessage): void => {
        // post event to reducers
-        const type: BlockchainMessageType = event.type; // assert flow type
+        const type: BlockchainMessageType = event.type; // eslint-disable-line prefer-destructuring
        dispatch({
            type,
            payload: event.payload,
        });
    });

+    /* global LOCAL */
    // $FlowIssue LOCAL not declared
-    window.__TREZOR_CONNECT_SRC = typeof LOCAL === 'string' ? LOCAL : 'https://sisyfos.trezor.io/connect/';
-    // window.__TREZOR_CONNECT_SRC = typeof LOCAL === 'string' ? LOCAL : 'https://connect.trezor.io/5/';
+    window.__TREZOR_CONNECT_SRC = typeof LOCAL === 'string' ? LOCAL : 'https://sisyfos.trezor.io/connect/'; // eslint-disable-line no-underscore-dangle
+    // window.__TREZOR_CONNECT_SRC = typeof LOCAL === 'string' ? LOCAL : 'https://connect.trezor.io/5/'; // eslint-disable-line no-underscore-dangle

    try {
        await TrezorConnect.init({
            transportReconnect: true,
-            debug: true,
+            debug: false,
            popup: false,
            webusb: true,
            pendingTransportEvent: (getState().devices.length < 1),
@ -145,67 +135,11 @@ export const init = (): AsyncAction => async (dispatch: Dispatch, getState: GetS
    }
 };

-// selection from Aside dropdown button
-// after device_connect event
-// or after acquiring device
-// device type could be local TrezorDevice or Device (from trezor-connect device_connect event)
-export const onSelectDevice = (device: TrezorDevice | Device): ThunkAction => (dispatch: Dispatch, getState: GetState): void => {
-    // || device.isUsedElsewhere
-
-    // switch to initial url and reset this value
-
-    if (!device.features) {
-        dispatch(push(`/device/${device.path}/${device.type === 'unreadable' ? 'unreadable' : 'acquire'}`));
-    } else if (device.features.bootloader_mode) {
-        dispatch(push(`/device/${device.path}/bootloader`));
-    } else if (!device.features.initialized) {
-        dispatch(push(`/device/${device.features.device_id}/initialize`));
-    } else if (typeof device.instance === 'number') {
-        dispatch(push(`/device/${device.features.device_id}:${device.instance}`));
-    } else {
-        const deviceId: string = device.features.device_id;
-        const urlParams: RouterLocationState = getState().router.location.state;
-        // let url: string = `/device/${ device.features.device_id }/network/ethereum/account/0`;
-        let url: string = `/device/${deviceId}`;
-        let instance: ?number;
-        // check if device is not TrezorDevice type
-        if (!device.hasOwnProperty('ts')) {
-            // its device from trezor-connect (called in initConnectedDevice triggered by device_connect event)
-            // need to lookup if there are unavailable instances
-            const available: Array<TrezorDevice> = getState().devices.filter(d => d.path === device.path);
-            const latest: Array<TrezorDevice> = sortDevices(available);
-
-            if (latest.length > 0 && latest[0].instance) {
-                url += `:${latest[0].instance}`;
-                instance = latest[0].instance;
-            }
-        }
-        // check if current location is not set to this device
-        //dispatch( push(`/device/${ device.features.device_id }/network/etc/account/0`) );
-
-        if (urlParams.deviceInstance !== instance || urlParams.device !== deviceId) {
-            dispatch(push(url));
-        }
-    }
-};
-
-export const initConnectedDevice = (device: TrezorDevice | Device): ThunkAction => (dispatch: Dispatch/* , getState: GetState */): void => {
-    // const selected = getState().wallet.selectedDevice;
-    // if (!selected || (selected && selected.state)) {
-    dispatch(onSelectDevice(device));
-    // }
-    // if (device.unacquired && selected && selected.path !== device.path && !selected.connected) {
-    //     dispatch( onSelectDevice(device) );
-    // } else if (!selected) {
-    //     dispatch( onSelectDevice(device) );
-    // }
-};
-
 // called after backend was initialized
 // set listeners for connect/disconnect
-export const postInit = (): ThunkAction => (dispatch: Dispatch, getState: GetState): void => {
+export const postInit = (): ThunkAction => (dispatch: Dispatch): void => {
    const handleDeviceConnect = (device: Device) => {
-        dispatch(initConnectedDevice(device));
+        dispatch(RouterActions.selectDevice(device));
    };

    TrezorConnect.off(DEVICE.CONNECT, handleDeviceConnect);
@ -214,58 +148,13 @@ export const postInit = (): ThunkAction => (dispatch: Dispatch, getState: GetSta
    TrezorConnect.on(DEVICE.CONNECT, handleDeviceConnect);
    TrezorConnect.on(DEVICE.CONNECT_UNACQUIRED, handleDeviceConnect);

-    const { devices } = getState();
-
-    const { initialPathname, initialParams } = getState().wallet;
-
-    if (initialPathname) {
-        dispatch({
-            type: WALLET.SET_INITIAL_URL,
-            // pathname: null,
-            // params: null
-        });
-    }
-
-    if (devices.length > 0) {
-        const unacquired: ?TrezorDevice = devices.find(d => d.features);
-        if (unacquired) {
-            dispatch(onSelectDevice(unacquired));
-        } else {
-            const latest: Array<TrezorDevice> = sortDevices(devices);
-            const firstConnected: ?TrezorDevice = latest.find(d => d.connected);
-            dispatch(onSelectDevice(firstConnected || latest[0]));
-
-            // TODO
-            if (initialParams) {
-                if (!initialParams.hasOwnProperty('network') && initialPathname !== getState().router.location.pathname) {
-                    // dispatch( push(initialPathname) );
-                }
-            }
-        }
+    // try to redirect to initial url
+    if (!dispatch(RouterActions.setInitialUrl())) {
+        // if initial redirection fails try to switch to first available device
+        dispatch(RouterActions.selectFirstAvailableDevice());
    }
 };

-export const switchToFirstAvailableDevice = (): AsyncAction => async (dispatch: Dispatch, getState: GetState): Promise<void> => {
-    const { devices } = getState();
-    if (devices.length > 0) {
-        // TODO: Priority:
-        // 1. First Unacquired
-        // 2. First connected
-        // 3. Saved with latest timestamp
-        const unacquired = devices.find(d => !d.features);
-        if (unacquired) {
-            dispatch(initConnectedDevice(unacquired));
-        } else {
-            const latest: Array<TrezorDevice> = sortDevices(devices);
-            const firstConnected: ?TrezorDevice = latest.find(d => d.connected);
-            dispatch(onSelectDevice(firstConnected || latest[0]));
-        }
-    } else {
-        dispatch(push('/'));
-    }
-};
-
-
 export const getSelectedDeviceState = (): AsyncAction => async (dispatch: Dispatch, getState: GetState): Promise<void> => {
    const selected = getState().wallet.selectedDevice;
    if (selected
@ -345,7 +234,7 @@ export const coinChanged = (network: ?string): ThunkAction => (dispatch: Dispatc
 };

 export function reload(): AsyncAction {
-    return async (dispatch: Dispatch, getState: GetState): Promise<void> => {
+    return async (): Promise<void> => {
    };
 }

@ -391,13 +280,6 @@ export function acquire(): AsyncAction {
    };
 }

-export const gotoDeviceSettings = (device: TrezorDevice): ThunkAction => (dispatch: Dispatch): void => {
-    if (device.features) {
-        const devUrl: string = `${device.features.device_id}${device.instance ? `:${device.instance}` : ''}`;
-        dispatch(push(`/device/${devUrl}/settings`));
-    }
-};
-
 // called from Aside - device menu (forget single instance)
 export const forget = (device: TrezorDevice): Action => ({
    type: CONNECT.FORGET_REQUEST,
--- a/src/components/Checkbox/index.js
+++ b/src/components/Checkbox/index.js
@ -1,6 +1,6 @@
 import React, { PureComponent } from 'react';
 import PropTypes from 'prop-types';
-import styled from 'styled-components';
+import styled, { css } from 'styled-components';
 import colors from 'config/colors';
 import Icon from 'components/Icon';
 import icons from 'config/icons';
@ -34,8 +34,10 @@ const IconWrapper = styled.div`

    &:hover,
    &:focus {
-        border: 1px solid ${colors.TEXT_PRIMARY};
-        background: ${props => (props.checked ? colors.TEXT_PRIMARY : colors.WHITE)};
+        ${props => !props.checked && css`
+            border: 1px solid ${colors.GREEN_PRIMARY};
+        `}
+        background: ${props => (props.checked ? colors.GREEN_PRIMARY : colors.WHITE)};
    }
 `;

@ -74,7 +76,12 @@ class Checkbox extends PureComponent {
                <IconWrapper checked={checked}>
                    {checked && (
                        <Tick>
-                            <Icon size={26} color={checked ? colors.WHITE : colors.GREEN_PRIMARY} icon={icons.SUCCESS} />
+                            <Icon
+                                hoverColor={colors.WHITE}
+                                size={26}
+                                color={checked ? colors.WHITE : colors.GREEN_PRIMARY}
+                                icon={icons.SUCCESS}
+                            />
                        </Tick>
                    )
                    }
--- a/src/components/Footer/index.js
+++ b/src/components/Footer/index.js
@ -29,7 +29,7 @@ const Copy = styled.div`

 const Footer = ({ toggle }) => (
    <Wrapper>
-        <Copy>&copy; {getYear(new Date())}</Copy>
+        <Copy title={COMMITHASH}>&copy; {getYear(new Date())}</Copy>
        <StyledLink href="http://satoshilabs.com" target="_blank" rel="noreferrer noopener" isGreen>SatoshiLabs</StyledLink>
        <StyledLink href="/assets/tos.pdf" target="_blank" rel="noreferrer noopener" isGreen>Terms</StyledLink>
        <StyledLink onClick={toggle} isGreen>Show Log</StyledLink>
--- a/src/components/Icon/index.js
+++ b/src/components/Icon/index.js
@ -27,7 +27,7 @@ const SvgWrapper = styled.svg`

    :hover {
        path {
-            fill: ${props => props.hoverColor || colors.TEXT_SECONDARY}
+            fill: ${props => props.hoverColor}
        }
    }
 `;
--- a/src/components/Paragraph/index.js
+++ b/src/components/Paragraph/index.js
@ -26,10 +26,7 @@ const P = ({ children, className, isSmaller = false }) => (
 P.propTypes = {
    className: PropTypes.string,
    isSmaller: PropTypes.bool,
-    children: PropTypes.oneOfType([
-        PropTypes.array,
-        PropTypes.string,
-    ]),
+    children: PropTypes.node,
 };

 export default P;
--- a/src/components/Select/index.js
+++ b/src/components/Select/index.js
@ -3,7 +3,6 @@ import PropTypes from 'prop-types';
 import ReactSelect from 'react-select';
 import ReactAsyncSelect from 'react-select/lib/Async';
 import colors from 'config/colors';
-import { FONT_FAMILY } from 'config/variables';

 const styles = isSearchable => ({
    singleValue: base => ({
@ -13,7 +12,6 @@ const styles = isSearchable => ({
    }),
    control: (base, { isDisabled }) => ({
        ...base,
-        fontFamily: FONT_FAMILY.MONOSPACE,
        minHeight: 'initial',
        height: '100%',
        borderRadius: '2px',
@ -45,17 +43,16 @@ const styles = isSearchable => ({
    menuList: base => ({
        ...base,
        padding: 0,
-        fontFamily: FONT_FAMILY.MONOSPACE,
        boxShadow: 'none',
        background: colors.WHITE,
        borderLeft: `1px solid ${colors.DIVIDER}`,
        borderRight: `1px solid ${colors.DIVIDER}`,
        borderBottom: `1px solid ${colors.DIVIDER}`,
    }),
-    option: (base, { isSelected }) => ({
+    option: (base, { isFocused }) => ({
        ...base,
        color: colors.TEXT_SECONDARY,
-        background: isSelected ? colors.LANDING : colors.WHITE,
+        background: isFocused ? colors.LANDING : colors.WHITE,
        borderRadius: 0,
        '&:hover': {
            cursor: 'pointer',
--- a/src/components/Tooltip/index.js
+++ b/src/components/Tooltip/index.js
@ -3,19 +3,13 @@ import RcTooltip from 'rc-tooltip';
 import colors from 'config/colors';
 import styled from 'styled-components';
 import PropTypes from 'prop-types';
-import { FONT_SIZE } from 'config/variables';
-
-const TooltipContent = styled.div`
-    width: ${props => (props.isAside ? '260px' : '320px')};
-    font-size: ${FONT_SIZE.SMALLEST};
-`;

 const Wrapper = styled.div`
    .rc-tooltip {
+        max-width: ${props => `${props.maxWidth}px` || 'auto'};
        position: absolute;
        z-index: 1070;
        display: block;
-        background: red;
        visibility: visible;
        border: 1px solid ${colors.DIVIDER};
        border-radius: 3px;
@ -178,9 +172,11 @@ class Tooltip extends Component {
            placement,
            content,
            children,
+            maxWidth,
        } = this.props;
        return (
            <Wrapper
+                maxWidth={maxWidth}
                className={className}
                innerRef={(node) => { this.tooltipContainerRef = node; }}
            >
@ -188,7 +184,7 @@ class Tooltip extends Component {
                    getTooltipContainer={() => this.tooltipContainerRef}
                    arrowContent={<div className="rc-tooltip-arrow-inner" />}
                    placement={placement}
-                    overlay={<TooltipContent>{content}</TooltipContent>}
+                    overlay={content}
                >
                    {children}
                </RcTooltip>
@ -204,6 +200,7 @@ Tooltip.propTypes = {
        PropTypes.element,
        PropTypes.string,
    ]),
+    maxWidth: PropTypes.number,
    content: PropTypes.oneOfType([
        PropTypes.element,
        PropTypes.string,
--- a/src/components/inputs/Input/index.js
+++ b/src/components/inputs/Input/index.js
@ -8,7 +8,6 @@ import {
    FONT_SIZE,
    FONT_WEIGHT,
    TRANSITION,
-    FONT_FAMILY,
 } from 'config/variables';

 const Wrapper = styled.div`
@ -35,10 +34,9 @@ const TopLabel = styled.span`

 const StyledInput = styled.input`
    width: 100%;
-    padding: 6px 12px;
+    padding: 6px ${props => (props.hasIcon ? '40px' : '12px')} 6px 12px;

    line-height: 1.42857143;
-    font-family: ${FONT_FAMILY.MONOSPACE};
    font-size: ${FONT_SIZE.SMALL};
    font-weight: ${FONT_WEIGHT.BASE};
    color: ${colors.TEXT_PRIMARY};
@ -114,6 +112,8 @@ class Input extends Component {
                            />
                        )}
                        <StyledInput
+                            hasIcon={!!this.props.state}
+                            innerRef={this.props.innerRef}
                            hasAddon={!!this.props.sideAddons}
                            type={this.props.type}
                            placeholder={this.props.placeholder}
@ -143,13 +143,14 @@ class Input extends Component {

 Input.propTypes = {
    className: PropTypes.string,
+    innerRef: PropTypes.func,
    placeholder: PropTypes.string,
    type: PropTypes.string,
    autoComplete: PropTypes.string,
    autoCorrect: PropTypes.string,
    autoCapitalize: PropTypes.string,
    spellCheck: PropTypes.string,
-    value: PropTypes.string.isRequired,
+    value: PropTypes.string,
    onChange: PropTypes.func,
    state: PropTypes.string,
    bottomText: PropTypes.string,
--- a/src/components/modals/confirm/SignTx/index.js
+++ b/src/components/modals/confirm/SignTx/index.js
@ -5,6 +5,7 @@ import P from 'components/Paragraph';
 import Icon from 'components/Icon';
 import icons from 'config/icons';
 import { H3 } from 'components/Heading';
+import { LINE_HEIGHT } from 'config/variables';

 const Wrapper = styled.div`
    width: 390px;
@ -21,6 +22,12 @@ const Content = styled.div`
    padding: 24px 48px;
 `;

+const StyledP = styled(P)`
+    word-wrap: break-word;
+    padding: 5px 0;
+    line-height: ${LINE_HEIGHT.SMALL}
+`;
+
 const Label = styled.div`
    padding-top: 5px;
    font-size: 10px;
@ -49,7 +56,7 @@ const ConfirmSignTx = (props) => {
                <Label>Send</Label>
                <P>{`${amount} ${currency}` }</P>
                <Label>To</Label>
-                <P>{ address }</P>
+                <StyledP>{ address }</StyledP>
                <Label>Fee</Label>
                <P>{ selectedFeeLevel.label }</P>
            </Content>
--- a/src/components/modals/passphrase/Passphrase/index.js
+++ b/src/components/modals/passphrase/Passphrase/index.js
@ -2,6 +2,7 @@
 import React, { Component } from 'react';
 import raf from 'raf';
 import colors from 'config/colors';
+import { H2 } from 'components/Heading';
 import P from 'components/Paragraph';
 import { FONT_SIZE } from 'config/variables';
 import Link from 'components/Link';
@ -23,7 +24,10 @@ const Label = styled.div`
    padding-bottom: 5px;
 `;

-const PassphraseError = styled.div``;
+const PassphraseError = styled.div`
+    margin-top: 8px;
+    color: ${colors.ERROR_PRIMARY};
+`;

 const Row = styled.div`
    position: relative;
@ -137,22 +141,25 @@ export default class PinModal extends Component<Props, State> {
        } = this.state;
        // } = this.props.modal;

-        let passphraseInputValue: string = passphrase;
-        let passphraseRevisionInputValue: string = passphraseRevision;
-        if (!visible && !passphraseFocused) {
-            passphraseInputValue = passphrase.replace(/./g, '•');
-        }
-        if (!visible && !passphraseRevisionFocused) {
-            passphraseRevisionInputValue = passphraseRevision.replace(/./g, '•');
-        }
+        const passphraseInputValue: string = passphrase;
+        const passphraseRevisionInputValue: string = passphraseRevision;
+        // if (!visible && !passphraseFocused) {
+        //     passphraseInputValue = passphrase.replace(/./g, '•');
+        // }
+        // if (!visible && !passphraseRevisionFocused) {
+        //     passphraseRevisionInputValue = passphraseRevision.replace(/./g, '•');
+        // }
+

        if (this.passphraseInput) {
-            this.passphraseInput.value = passphraseInputValue;
-            this.passphraseInput.setAttribute('type', visible || (!visible && !passphraseFocused) ? 'text' : 'password');
+            // this.passphraseInput.value = passphraseInputValue;
+            // this.passphraseInput.setAttribute('type', visible || (!visible && !passphraseFocused) ? 'text' : 'password');
+            this.passphraseInput.setAttribute('type', visible ? 'text' : 'password');
        }
        if (this.passphraseRevisionInput) {
-            this.passphraseRevisionInput.value = passphraseRevisionInputValue;
-            this.passphraseRevisionInput.setAttribute('type', visible || (!visible && !passphraseRevisionFocused) ? 'text' : 'password');
+            // this.passphraseRevisionInput.value = passphraseRevisionInputValue;
+            // this.passphraseRevisionInput.setAttribute('type', visible || (!visible && !passphraseRevisionFocused) ? 'text' : 'password');
+            this.passphraseRevisionInput.setAttribute('type', visible ? 'text' : 'password');
        }
    }

@ -174,6 +181,14 @@ export default class PinModal extends Component<Props, State> {
                match: previousState.singleInput || previousState.passphraseRevision === value,
                passphrase: value,
            }));
+
+            if (this.state.visible && this.passphraseRevisionInput) {
+                this.setState({
+                    match: true,
+                    passphraseRevision: value,
+                });
+                this.passphraseRevisionInput.value = value;
+            }
        } else {
            this.setState(previousState => ({
                match: previousState.passphrase === value,
@ -211,12 +226,29 @@ export default class PinModal extends Component<Props, State> {
        this.setState({
            visible: true,
        });
+        if (this.passphraseRevisionInput) {
+            this.passphraseRevisionInput.disabled = true;
+            this.passphraseRevisionInput.value = this.state.passphrase;
+            this.setState(previousState => ({
+                passphraseRevision: previousState.passphrase,
+                match: true,
+            }));
+        }
    }

    onPassphraseHide = (): void => {
        this.setState({
            visible: false,
        });
+        if (this.passphraseRevisionInput) {
+            const emptyPassphraseRevisionValue = '';
+            this.passphraseRevisionInput.value = emptyPassphraseRevisionValue;
+            this.setState(previousState => ({
+                passphraseRevision: emptyPassphraseRevisionValue,
+                match: emptyPassphraseRevisionValue === previousState.passphrase,
+            }));
+            this.passphraseRevisionInput.disabled = false;
+        }
    }

    submit = (empty: boolean = false): void => {
@ -232,7 +264,7 @@ export default class PinModal extends Component<Props, State> {
        //this.passphraseRevisionInput.style.display = 'none';
        //this.passphraseRevisionInput.setAttribute('readonly', 'readonly');

-        const p = passphrase;
+        // const p = passphrase;

        this.setState({
            passphrase: '',
@ -271,11 +303,10 @@ export default class PinModal extends Component<Props, State> {
        //let passphraseRevisionInputType: string = visible || passphraseRevisionFocused ? "text" : "password";

        const showPassphraseCheckboxFn: Function = visible ? this.onPassphraseHide : this.onPassphraseShow;
-        console.log('passphraseInputType', passphraseInputType);
        return (
            <Wrapper>
-                {/* ?<H2>Enter { deviceLabel } passphrase</H2> */}
-                {/* <P isSmaller>Note that passphrase is case-sensitive.</P> */}
+                <H2>Enter { deviceLabel } passphrase</H2>
+                <P isSmaller>Note that passphrase is case-sensitive.</P>
                <Row>
                    <Label>Passphrase</Label>
                    <Input
@ -289,7 +320,7 @@ export default class PinModal extends Component<Props, State> {
                        data-lpignore="true"
                        onFocus={() => this.onPassphraseFocus('passphrase')}
                        onBlur={() => this.onPassphraseBlur('passphrase')}
-                        tabIndex="1"
+                        tabIndex="0"
                    />
                </Row>
                {!singleInput && (
@ -306,7 +337,6 @@ export default class PinModal extends Component<Props, State> {
                            data-lpignore="true"
                            onFocus={() => this.onPassphraseFocus('revision')}
                            onBlur={() => this.onPassphraseBlur('revision')}
-                            tabIndex="2"
                        />
                        {!match && passphraseRevisionTouched && <PassphraseError>Passphrases do not match</PassphraseError> }
                    </Row>
@ -315,7 +345,7 @@ export default class PinModal extends Component<Props, State> {
                    <Checkbox onClick={showPassphraseCheckboxFn} checked={visible}>Show passphrase</Checkbox>
                </Row>
                <Row>
-                    <Button type="button" tabIndex="4" disabled={!match} onClick={event => this.submit()}>Enter</Button>
+                    <Button type="button" disabled={!match} onClick={() => this.submit()}>Enter</Button>
                </Row>
                <Footer>
                    <P isSmaller>If you want to access your default account</P>
--- a/src/config/variables.js
+++ b/src/config/variables.js
@ -41,5 +41,6 @@ export const TRANSITION = {
 };

 export const LINE_HEIGHT = {
+    SMALL: '1.4',
    BASE: '1.8',
 };
--- a/src/flowtype/index.js
+++ b/src/flowtype/index.js
@ -6,9 +6,9 @@ import type {
    MiddlewareAPI as ReduxMiddlewareAPI,
    Middleware as ReduxMiddleware,
    ThunkAction as ReduxThunkAction,
+    PayloadAction as ReduxPayloadAction,
    AsyncAction as ReduxAsyncAction,
    PromiseAction as ReduxPromiseAction,
-    ThunkDispatch as ReduxThunkDispatch,
    PlainDispatch as ReduxPlainDispatch,
 } from 'redux';

@ -164,6 +164,7 @@ export type MiddlewareAPI = ReduxMiddlewareAPI<State, Action>;
 export type Middleware = ReduxMiddleware<State, Action>;

 export type ThunkAction = ReduxThunkAction<State, Action>;
+export type PayloadAction<R> = ReduxPayloadAction<State, Action, R>;
 export type AsyncAction = ReduxAsyncAction<State, Action>;
 export type PromiseAction<R> = ReduxPromiseAction<State, Action, R>;

--- a/src/flowtype/npm/redux_v3.x.x.js
+++ b/src/flowtype/npm/redux_v3.x.x.js
@ -2,7 +2,6 @@

 declare module 'redux' {
  /*
-
    S = State
    A = Action
    D = Dispatch
@ -16,28 +15,25 @@ declare module 'redux' {
  declare export type ThunkAction<S, A> = (dispatch: ReduxDispatch<S, A>, getState: () => S) => void;
  declare export type AsyncAction<S, A> = (dispatch: ReduxDispatch<S, A>, getState: () => S) => Promise<void>;
  declare export type PromiseAction<S, A, R> = (dispatch: ReduxDispatch<S, A>, getState: () => S) => Promise<R>;
+  declare export type PayloadAction<S, A, R> = (dispatch: ReduxDispatch<S, A>, getState: () => S) => R;

  declare export type ThunkDispatch<S, A> = (action: ThunkAction<S, A>) => void;
  declare export type AsyncDispatch<S, A> = (action: AsyncAction<S, A>) => Promise<void>;
  declare export type PromiseDispatch<S, A> = <R>(action: PromiseAction<S, A, R>) => Promise<R>;
+  declare export type PayloadDispatch<S, A> = <R>(action: PayloadAction<S, A, R>) => R;
  declare export type PlainDispatch<A: {type: $Subtype<string>}> = DispatchAPI<A>;
  /* NEW: Dispatch is now a combination of these different dispatch types */
-  declare export type ReduxDispatch<S, A> = PlainDispatch<A> & ThunkDispatch<S, A> & AsyncDispatch<S, A> & PromiseDispatch<S, A>;
+  declare export type ReduxDispatch<S, A> = PlainDispatch<A> & ThunkDispatch<S, A> & AsyncDispatch<S, A> & PromiseDispatch<S, A> & PayloadDispatch<S, A>;

  declare export type MiddlewareAPI<S, A> = {
-    // dispatch: Dispatch<S, A>;
-    // dispatch: (action: A | ThunkAction<S, A>) => A | void;
-    // dispatch: PlainDispatch<A> | () => A;
-    // dispatch: ( A | ThunkAction<S, A> | void ) => void;
    dispatch: ReduxDispatch<S, A>;
-    // dispatch: Dispatch<S, A>;
-    // dispatch: D;
    getState(): S;
  };

  declare export type Middleware<S, A> =
    (api: MiddlewareAPI<S, A>) =>
-      (next: PlainDispatch<A>) => PlainDispatch<A>;
+      (next: PlainDispatch<A>) =>
+        (PlainDispatch<A> | (action: A) => Promise<A>);

  declare export type Store<S, A, D = ReduxDispatch<S, A>> = {
    // rewrite MiddlewareAPI members in order to get nicer error messages (intersections produce long messages)
--- a/src/reducers/LocalStorageReducer.js
+++ b/src/reducers/LocalStorageReducer.js
@ -66,7 +66,6 @@ export type CustomBackend = {
    url: string;
 }

-
 export type State = {
    initialized: boolean;
    error: ?string;
--- a/src/reducers/ModalReducer.js
+++ b/src/reducers/ModalReducer.js
@ -57,6 +57,7 @@ export default function modal(state: State = initialState, action: Action): Stat
            if (state.opened && action.device.path === state.device.path && action.device.status === 'occupied') {
                return initialState;
            }
+
            return state;

        case DEVICE.DISCONNECT:
--- a/src/reducers/SelectedAccountReducer.js
+++ b/src/reducers/SelectedAccountReducer.js
@ -1,6 +1,4 @@
 /* @flow */
-
-
 import * as ACCOUNT from 'actions/constants/account';

 import type {
@ -14,7 +12,6 @@ import type {

 export type State = {
    location?: string;
-
    account: ?Account;
    network: ?Coin;
    tokens: Array<Token>,
--- a/src/reducers/WalletReducer.js
+++ b/src/reducers/WalletReducer.js
@ -12,17 +12,18 @@ import type { Action, RouterLocationState, TrezorDevice } from 'flowtype';

 type State = {
    ready: boolean;
+    unloading: boolean;
    online: boolean;
    dropdownOpened: boolean;
    initialParams: ?RouterLocationState;
    initialPathname: ?string;
    disconnectRequest: ?TrezorDevice;
-
    selectedDevice: ?TrezorDevice;
 }

 const initialState: State = {
    ready: false,
+    unloading: false,
    online: navigator.onLine,
    dropdownOpened: false,
    initialParams: null,
@ -33,6 +34,12 @@ const initialState: State = {

 export default function wallet(state: State = initialState, action: Action): State {
    switch (action.type) {
+        case WALLET.ON_BEFORE_UNLOAD:
+            return {
+                ...state,
+                unloading: true,
+            };
+
        case WALLET.SET_INITIAL_URL:
            return {
                ...state,
--- a/src/services/RouterService.js
+++ b/src/services/RouterService.js
@ -1,156 +1,46 @@
 /* @flow */
-import { LOCATION_CHANGE/* , replace */ } from 'react-router-redux';
-import * as CONNECT from 'actions/constants/TrezorConnect';
-import * as WALLET from 'actions/constants/wallet';
-import * as NotificationActions from 'actions/NotificationActions';
+import { LOCATION_CHANGE, replace } from 'react-router-redux';
+import * as RouterActions from 'actions/RouterActions';

 import type {
    Middleware,
    MiddlewareAPI,
    MiddlewareDispatch,
    Action,
-    RouterLocationState,
-    TrezorDevice,
 } from 'flowtype';

 /**
- * Middleware used for init application and managing router path.
+ * Redux Middleware used for managing router path
+ * This middleware couldn't use async/await because LOCATION_CHANGE action is also synchronized with RouterReducer (react-router-redux)
 */

-const pathToParams = (path: string): RouterLocationState => {
-    const urlParts: Array<string> = path.split('/').slice(1);
-    const params: RouterLocationState = {};
-    if (urlParts.length < 1 || path === '/') return params;
-
-    for (let i = 0, len = urlParts.length; i < len; i += 2) {
-        params[urlParts[i]] = urlParts[i + 1] || urlParts[i];
-    }
-
-    if (params.hasOwnProperty('device')) {
-        const isClonedDevice: Array<string> = params.device.split(':');
-        if (isClonedDevice.length > 1) {
-            params.device = isClonedDevice[0];
-            params.deviceInstance = isClonedDevice[1];
-        }
-    }
-
-    return params;
-};
-
-const validation = (api: MiddlewareAPI, params: RouterLocationState): boolean => {
-    if (params.hasOwnProperty('device')) {
-        const { devices } = api.getState();
-
-        let device: ?TrezorDevice;
-        if (params.hasOwnProperty('deviceInstance')) {
-            device = devices.find(d => d.features && d.features.device_id === params.device && d.instance === parseInt(params.deviceInstance, 10));
-        } else {
-            device = devices.find(d => d.path === params.device || (d.features && d.features.device_id === params.device));
-        }
-
-        if (!device) return false;
-    }
-
-    if (params.hasOwnProperty('network')) {
-        const { config } = api.getState().localStorage;
-        const coin = config.coins.find(c => c.network === params.network);
-        if (!coin) return false;
-        if (!params.account) return false;
-    }
-
-    // if (params.account) {
-
-    // }
-
-    return true;
-};
-
-let __unloading: boolean = false;
-
 const RouterService: Middleware = (api: MiddlewareAPI) => (next: MiddlewareDispatch) => (action: Action): Action => {
-    if (action.type === WALLET.ON_BEFORE_UNLOAD) {
-        __unloading = true;
-    } else if (action.type === LOCATION_CHANGE && !__unloading) {
-        const { location } = api.getState().router;
-        const { devices } = api.getState();
-        const { error } = api.getState().connect;
-
-        const requestedParams: RouterLocationState = pathToParams(action.payload.pathname);
-        const currentParams: RouterLocationState = pathToParams(location ? location.pathname : '/');
-        const postActions: Array<Action> = [];
-
-        let redirectPath: ?string;
-        // first event after application loads
-        if (!location) {
-            postActions.push({
-                type: WALLET.SET_INITIAL_URL,
-                pathname: action.payload.pathname,
-                state: requestedParams,
-            });
-
-            redirectPath = '/';
-        } else {
-            const isModalOpened: boolean = api.getState().modal.opened;
-            // there are no devices attached or initialization error occurs
-            const landingPage: boolean = devices.length < 1 || error !== null;
-
-            // modal is still opened and currentPath is still valid
-            // example 1 (valid blocking): url changes while passphrase modal opened but device is still connected (we want user to finish this action)
-            // example 2 (invalid blocking): url changes while passphrase modal opened because device disconnect
-            if (isModalOpened && action.payload.pathname !== location.pathname && validation(api, currentParams)) {
-                redirectPath = location.pathname;
-                console.warn('Modal still opened');
-            } else if (landingPage) {
-                // keep route on landing page
-                if (action.payload.pathname !== '/' && action.payload.pathname !== '/bridge') {
-                    redirectPath = '/';
-                }
-            } else {
-                // PATH VALIDATION
-                // redirect from root view
-                if (action.payload.pathname === '/' || !validation(api, requestedParams)) {
-                    // TODO redirect to first device
-                    redirectPath = '/device/x';
-                } else if (requestedParams.device) {
-                    if (requestedParams.network !== currentParams.network) {
-                        postActions.push({
-                            type: CONNECT.COIN_CHANGED,
-                            payload: {
-                                network: requestedParams.network,
-                            },
-                        });
-                    }
-                }
-            }
-        }
-
-        if (redirectPath) {
-            console.warn('Redirecting...', redirectPath);
-            // override action to keep routerReducer sync
-            const url: string = redirectPath;
-            action.payload.state = pathToParams(url);
-            action.payload.pathname = url;
-            // change url
-            // api.dispatch(replace(url));
-        } else {
-            action.payload.state = requestedParams;
-        }
-
-        // resolve LOCATION_CHANGE action
-        next(action);
-
-        // resolve post actions
-        postActions.forEach((a) => {
-            api.dispatch(a);
-        });
-
-        api.dispatch(NotificationActions.clear(currentParams, requestedParams));
-
-        return action;
-    }
-
-    // Pass all actions through by default
+    // make sure that middleware should process this action
+    if (action.type !== LOCATION_CHANGE || api.getState().wallet.unloading) {
+        // pass action
        return next(action);
+    }
+
+    // compose valid url
+    const validUrl = api.dispatch(RouterActions.getValidUrl(action));
+    // override action state (to be stored in RouterReducer)
+    const override = action;
+    override.payload.state = api.dispatch(RouterActions.pathToParams(validUrl));
+    const redirect = action.payload.pathname !== validUrl;
+    if (redirect) {
+        // override action pathname
+        override.payload.pathname = validUrl;
+    }
+
+    // pass action
+    next(override);
+
+    if (redirect) {
+        // replace invalid url
+        api.dispatch(replace(validUrl));
+    }
+
+    return override;
 };

 export default RouterService;
--- a/src/services/TrezorConnectService.js
+++ b/src/services/TrezorConnectService.js
@ -1,12 +1,12 @@
 /* @flow */
-import { push } from 'react-router-redux';

-import TrezorConnect, {
-    TRANSPORT, DEVICE_EVENT, UI_EVENT, UI, DEVICE, BLOCKCHAIN
+import {
+    TRANSPORT, DEVICE, BLOCKCHAIN,
 } from 'trezor-connect';
 import * as TrezorConnectActions from 'actions/TrezorConnectActions';
 import * as DiscoveryActions from 'actions/DiscoveryActions';
 import * as BlockchainActions from 'actions/BlockchainActions';
+import * as RouterActions from 'actions/RouterActions';
 import * as ModalActions from 'actions/ModalActions';
 import * as STORAGE from 'actions/constants/localStorage';
 import * as CONNECT from 'actions/constants/TrezorConnect';
@ -31,7 +31,7 @@ const TrezorConnectService: Middleware = (api: MiddlewareAPI) => (next: Middlewa
        api.dispatch(TrezorConnectActions.init());
    } else if (action.type === TRANSPORT.ERROR) {
        // TODO: check if modal is open
-        // api.dispatch( push('/') );
+        // api.dispatch( RouterActions.gotoLandingPage() );
    } else if (action.type === TRANSPORT.START) {
        api.dispatch(BlockchainActions.init());
    } else if (action.type === BLOCKCHAIN_READY) {
@ -42,7 +42,7 @@ const TrezorConnectService: Middleware = (api: MiddlewareAPI) => (next: Middlewa
        api.dispatch(ModalActions.onRememberRequest(prevModalState));
    } else if (action.type === CONNECT.FORGET) {
        //api.dispatch( TrezorConnectActions.forgetDevice(action.device) );
-        api.dispatch(TrezorConnectActions.switchToFirstAvailableDevice());
+        api.dispatch(RouterActions.selectFirstAvailableDevice());
    } else if (action.type === CONNECT.FORGET_SINGLE) {
        if (api.getState().devices.length < 1 && action.device.connected) {
            // prompt disconnect device info in LandingPage
@ -50,9 +50,9 @@ const TrezorConnectService: Middleware = (api: MiddlewareAPI) => (next: Middlewa
                type: CONNECT.DISCONNECT_REQUEST,
                device: action.device,
            });
-            api.dispatch(push('/'));
+            api.dispatch(RouterActions.gotoLandingPage());
        } else {
-            api.dispatch(TrezorConnectActions.switchToFirstAvailableDevice());
+            api.dispatch(RouterActions.selectFirstAvailableDevice());
        }
    } else if (action.type === DEVICE.CONNECT || action.type === DEVICE.CONNECT_UNACQUIRED) {
        api.dispatch(DiscoveryActions.restore());
@ -60,7 +60,7 @@ const TrezorConnectService: Middleware = (api: MiddlewareAPI) => (next: Middlewa
    } else if (action.type === CONNECT.AUTH_DEVICE) {
        api.dispatch(DiscoveryActions.check());
    } else if (action.type === CONNECT.DUPLICATE) {
-        api.dispatch(TrezorConnectActions.onSelectDevice(action.device));
+        api.dispatch(RouterActions.selectDevice(action.device));
    } else if (action.type === CONNECT.COIN_CHANGED) {
        api.dispatch(TrezorConnectActions.coinChanged(action.payload.network));
    } else if (action.type === BLOCKCHAIN.BLOCK) {
--- a/src/services/WalletService.js
+++ b/src/services/WalletService.js
@ -1,11 +1,12 @@
 /* @flow */
-
-
 import { DEVICE } from 'trezor-connect';
 import { LOCATION_CHANGE } from 'react-router-redux';
 import * as WALLET from 'actions/constants/wallet';
+import * as CONNECT from 'actions/constants/TrezorConnect';

 import * as WalletActions from 'actions/WalletActions';
+import * as RouterActions from 'actions/RouterActions';
+import * as NotificationActions from 'actions/NotificationActions';
 import * as LocalStorageActions from 'actions/LocalStorageActions';
 import * as TrezorConnectActions from 'actions/TrezorConnectActions';
 import * as SelectedAccountActions from 'actions/SelectedAccountActions';
@ -22,24 +23,74 @@ import type {
 */
 const WalletService: Middleware = (api: MiddlewareAPI) => (next: MiddlewareDispatch) => (action: Action): Action => {
    const prevState = api.getState();
-    const locationChange: boolean = action.type === LOCATION_CHANGE;

-    // Application live cycle starts here
-    if (locationChange) {
-        const { location } = api.getState().router;
-        if (!location) {
+    // Application live cycle starts HERE!
+    // when first LOCATION_CHANGE is called router does not have "location" set yet
+    if (action.type === LOCATION_CHANGE && !prevState.router.location) {
+        // initialize wallet
        api.dispatch(WalletActions.init());
-            // load data from config.json and local storage
-            api.dispatch(LocalStorageActions.loadData());
-        }
+        // set initial url
+        // TODO: validate if initial url is potentially correct
+        api.dispatch({
+            type: WALLET.SET_INITIAL_URL,
+            pathname: action.payload.pathname,
+            state: {},
+        });
+        // pass action and break process
+        return next(action);
    }

    // pass action
    next(action);

-    if (action.type === DEVICE.CONNECT) {
-        api.dispatch(WalletActions.clearUnavailableDevicesData(prevState, action.device));
+    switch (action.type) {
+        case WALLET.SET_INITIAL_URL:
+            api.dispatch(LocalStorageActions.loadData());
+            break;
+        case WALLET.SET_SELECTED_DEVICE:
+            if (action.device) {
+                // try to authorize device
+                api.dispatch(TrezorConnectActions.getSelectedDeviceState());
+            } else {
+                // try select different device
+                api.dispatch(RouterActions.selectFirstAvailableDevice());
            }
+            break;
+        case DEVICE.CONNECT:
+            api.dispatch(WalletActions.clearUnavailableDevicesData(prevState, action.device));
+            break;
+        default: {
+            break;
+        }
+    }
+
+    // update common values ONLY if application is ready
+    if (!api.getState().wallet.ready) return action;
+
+    // double verification needed
+    // Corner case: LOCATION_CHANGE was called but pathname didn't changed (redirection from RouterService)
+    const prevLocation = prevState.router.location;
+    const currentLocation = api.getState().router.location;
+    if (action.type === LOCATION_CHANGE && prevLocation.pathname !== currentLocation.pathname) {
+        // watch for coin change
+        if (prevLocation.state.network !== currentLocation.state.network) {
+            api.dispatch({
+                type: CONNECT.COIN_CHANGED,
+                payload: {
+                    network: currentLocation.state.network,
+                },
+            });
+        }
+
+        // watch for account change
+        if (prevLocation.state.network !== currentLocation.state.network || prevLocation.state.account !== currentLocation.state.account) {
+            api.dispatch(SelectedAccountActions.dispose());
+        }
+
+        // clear notifications
+        api.dispatch(NotificationActions.clear(prevLocation.state, currentLocation.state));
+    }
+

    // update common values in WallerReducer
    api.dispatch(WalletActions.updateSelectedValues(prevState, action));
@ -47,15 +98,6 @@ const WalletService: Middleware = (api: MiddlewareAPI) => (next: MiddlewareDispa
    // update common values in SelectedAccountReducer
    api.dispatch(SelectedAccountActions.updateSelectedValues(prevState, action));

-    // selected device changed
-    if (action.type === WALLET.SET_SELECTED_DEVICE) {
-        if (action.device) {
-            api.dispatch(TrezorConnectActions.getSelectedDeviceState());
-        } else {
-            api.dispatch(TrezorConnectActions.switchToFirstAvailableDevice());
-        }
-    }
-
    return action;
 };

--- a/src/support/BaseStyles.js
+++ b/src/support/BaseStyles.js
@ -63,6 +63,44 @@ const baseStyles = () => injectGlobal`
            url('./fonts/roboto/roboto-mono-v4-greek_cyrillic-ext_greek-ext_latin_cyrillic_vietnamese_latin-ext-regular.svg#RobotoMono') format('svg'); /* Legacy iOS */
    }

+    .slide-left-enter {
+        transform: translate(100%);
+        pointer-events: none;
+    }
+    
+    .slide-left-enter.slide-left-enter-active {
+        transform: translate(0%);
+        transition: transform 300ms ease-in-out;
+    }
+    
+    .slide-left-exit {
+        transform: translate(-100%);
+    }
+    
+    .slide-left-exit.slide-left-exit-active {
+        transform: translate(0%);
+        transition: transform 300ms ease-in-out;
+    }
+    
+    .slide-right-enter {
+        transform: translate(-100%);
+        pointer-events: none;
+    }
+    
+    .slide-right-enter.slide-right-enter-active {
+        transform: translate(0%);
+        transition: transform 300ms ease-in-out;
+    }
+    
+    .slide-right-exit {
+        transform: translate(-100%);
+    }
+    
+    .slide-right-exit.slide-right-exit-active {
+        transform: translate(-200%);
+        transition: transform 300ms ease-in-out;
+    }
+
 `;

 export default baseStyles;
--- a/src/support/routes.js
+++ b/src/support/routes.js
@ -0,0 +1,94 @@
+/* @flow */
+
+export type Route = {
+    +name: string;
+    +pattern: string;
+    fields: Array<string>;
+}
+
+export const routes: Array<Route> = [
+    {
+        name: 'landing-home',
+        pattern: '/',
+        fields: [],
+    },
+    {
+        name: 'landing-bridge',
+        pattern: '/bridge',
+        fields: ['bridge'],
+    },
+    {
+        name: 'landing-import',
+        pattern: '/import',
+        fields: ['import'],
+    },
+    {
+        name: 'wallet-setting',
+        pattern: '/settings',
+        fields: ['settings'],
+    },
+    {
+        name: 'wallet-acquire',
+        pattern: '/device/:device/acquire',
+        fields: ['device', 'acquire'],
+    },
+    {
+        name: 'wallet-unreadable',
+        pattern: '/device/:device/unreadable',
+        fields: ['device', 'unreadable'],
+    },
+    {
+        name: 'wallet-bootloader',
+        pattern: '/device/:device/bootloader',
+        fields: ['device', 'bootloader'],
+    },
+    {
+        name: 'wallet-initialize',
+        pattern: '/device/:device/initialize',
+        fields: ['device', 'initialize'],
+    },
+    {
+        name: 'wallet-device-settings',
+        pattern: '/device/:device/settings',
+        fields: ['device', 'settings'],
+    },
+    {
+        name: 'wallet-dashboard',
+        pattern: '/device/:device',
+        fields: ['device'],
+    },
+    {
+        name: 'wallet-account-summary',
+        pattern: '/device/:device/network/:network/account/:account',
+        fields: ['device', 'network', 'account'],
+    },
+    {
+        name: 'wallet-account-send',
+        pattern: '/device/:device/network/:network/account/:account/send',
+        fields: ['device', 'network', 'account', 'send'],
+    },
+    {
+        name: 'wallet-account-send-override',
+        pattern: '/device/:device/network/:network/account/:account/send/override',
+        fields: ['device', 'network', 'account', 'send'],
+    },
+    {
+        name: 'wallet-account-receive',
+        pattern: '/device/:device/network/:network/account/:account/receive',
+        fields: ['device', 'network', 'account', 'receive'],
+    },
+    {
+        name: 'wallet-account-signverify',
+        pattern: '/device/:device/network/:network/account/:account/signverify',
+        fields: ['device', 'network', 'account', 'signverify'],
+    },
+];
+
+export const getPattern = (name: string): string => {
+    const entry = routes.find(r => r.name === name);
+    if (!entry) {
+        console.error(`Route for ${name} not found`);
+        return '/';
+    }
+    return entry.pattern;
+};
--- a/src/support/setupJest.js
+++ b/src/support/setupJest.js
@ -0,0 +1 @@
+global.fetch = require('jest-fetch-mock');
--- a/src/utils/tests/snapshots/device.test.js.snap
+++ b/src/utils/tests/snapshots/device.test.js.snap
@ -55,3 +55,13 @@ exports[`device utils get version 4`] = `"1"`;
 exports[`device utils get version 5`] = `"1"`;

 exports[`device utils get version 6`] = `"T"`;
+
+exports[`device utils isDisabled 1`] = `false`;
+
+exports[`device utils isDisabled 2`] = `true`;
+
+exports[`device utils isWebUSB 1`] = `true`;
+
+exports[`device utils isWebUSB 2`] = `false`;
+
+exports[`device utils isWebUSB 3`] = `true`;
--- a/src/utils/tests/snapshots/ethUtils.test.js.snap
+++ b/src/utils/tests/snapshots/ethUtils.test.js.snap
@ -1,5 +1,7 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP

+exports[`eth utils calcGasPrice 1`] = `"89090990901"`;
+
 exports[`eth utils decimalToHex 1`] = `"0"`;

 exports[`eth utils decimalToHex 2`] = `"1"`;
@ -8,4 +10,36 @@ exports[`eth utils decimalToHex 3`] = `"2"`;

 exports[`eth utils decimalToHex 4`] = `"64"`;

-exports[`eth utils decimalToHex 5`] = `"3e7"`;
+exports[`eth utils decimalToHex 5`] = `"2540be3ff"`;
+
+exports[`eth utils hexToDecimal 1`] = `"9999999999"`;
+
+exports[`eth utils hexToDecimal 2`] = `"100"`;
+
+exports[`eth utils hexToDecimal 3`] = `"2"`;
+
+exports[`eth utils hexToDecimal 4`] = `"1"`;
+
+exports[`eth utils hexToDecimal 5`] = `"0"`;
+
+exports[`eth utils hexToDecimal 6`] = `"null"`;
+
+exports[`eth utils padLeftEven 1`] = `"02540be3ff"`;
+
+exports[`eth utils sanitizeHex 1`] = `"0x02540be3ff"`;
+
+exports[`eth utils sanitizeHex 2`] = `"0x01"`;
+
+exports[`eth utils sanitizeHex 3`] = `"0x02"`;
+
+exports[`eth utils sanitizeHex 4`] = `"0x0100"`;
+
+exports[`eth utils sanitizeHex 5`] = `null`;
+
+exports[`eth utils sanitizeHex 6`] = `""`;
+
+exports[`eth utils strip 1`] = `""`;
+
+exports[`eth utils strip 2`] = `"02540be3ff"`;
+
+exports[`eth utils strip 3`] = `"02540be3ff"`;
--- a/src/utils/tests/snapshots/formatUtils.test.js.snap
+++ b/src/utils/tests/snapshots/formatUtils.test.js.snap
@ -0,0 +1,45 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`format utils btckb2satoshib 1`] = `0`;
+
+exports[`format utils btckb2satoshib 2`] = `100000`;
+
+exports[`format utils btckb2satoshib 3`] = `200000`;
+
+exports[`format utils btckb2satoshib 4`] = `10000000`;
+
+exports[`format utils btckb2satoshib 5`] = `99900000`;
+
+exports[`format utils formatAmount 1`] = `"0 btc"`;
+
+exports[`format utils formatAmount 2`] = `"10 mBTC"`;
+
+exports[`format utils formatAmount 3`] = `"0.000005 mBTC"`;
+
+exports[`format utils formatAmount 4`] = `"1e-8 eth"`;
+
+exports[`format utils formatAmount 5`] = `"0.00099999 tau"`;
+
+exports[`format utils formatTime 1`] = `"No time estimate"`;
+
+exports[`format utils formatTime 2`] = `"1 minutes"`;
+
+exports[`format utils formatTime 3`] = `"2 minutes"`;
+
+exports[`format utils formatTime 4`] = `"1 hour 40 minutes"`;
+
+exports[`format utils formatTime 5`] = `"16 hours 39 minutes"`;
+
+exports[`format utils formatTime 6`] = `"45 minutes"`;
+
+exports[`format utils hexToString 1`] = `"test"`;
+
+exports[`format utils hexToString 2`] = `"0001"`;
+
+exports[`format utils hexToString 3`] = `"test99999"`;
+
+exports[`format utils stringToHex 1`] = `"0074006500730074"`;
+
+exports[`format utils stringToHex 2`] = `"0030003000300031"`;
+
+exports[`format utils stringToHex 3`] = `"007400650073007400390039003900390039"`;
--- a/src/utils/tests/device.test.js
+++ b/src/utils/tests/device.test.js
@ -38,6 +38,29 @@ describe('device utils', () => {
        });
    });

+    it('isWebUSB', () => {
+        const data = [
+            { transport: { version: ['webusb'] } },
+            { transport: { version: ['aaaaaa'] } },
+            { transport: { version: ['webusb', 'test'] } },
+        ];
+
+        data.forEach((item) => {
+            expect(dUtils.isWebUSB(item.transport)).toMatchSnapshot();
+        });
+    });
+
+    it('isDisabled', () => {
+        const data = [
+            { selectedDevice: { features: null }, devices: [1, 2, 3], transport: { version: ['webusb', 'test'] } },
+            { selectedDevice: { features: null }, devices: [], transport: { version: ['test'] } },
+        ];
+
+        data.forEach((item) => {
+            expect(dUtils.isDisabled(item.selectedDevice, item.devices, item.transport)).toMatchSnapshot();
+        });
+    });
+
    it('get version', () => {
        const deviceMock = [
            { },
--- a/src/utils/tests/ethUtils.test.js
+++ b/src/utils/tests/ethUtils.test.js
@ -1,11 +1,53 @@
+import BigNumber from 'bignumber.js';
 import * as ethUtils from '../ethUtils';

 describe('eth utils', () => {
    it('decimalToHex', () => {
-        const input = [0, 1, 2, 100, 999];
+        const input = [0, 1, 2, 100, 9999999999];

        input.forEach((entry) => {
            expect(ethUtils.decimalToHex(entry)).toMatchSnapshot();
        });
    });
+
+    it('hexToDecimal', () => {
+        const input = ['2540be3ff', '64', '2', '1', '0', ''];
+
+        input.forEach((entry) => {
+            expect(ethUtils.hexToDecimal(entry)).toMatchSnapshot();
+        });
+    });
+
+    it('padLeftEven', () => {
+        const input = ['2540be3ff'];
+
+        input.forEach((entry) => {
+            expect(ethUtils.padLeftEven(entry)).toMatchSnapshot();
+        });
+    });
+
+    it('sanitizeHex', () => {
+        const input = ['0x2540be3ff', '1', '2', '100', 999, ''];
+
+        input.forEach((entry) => {
+            expect(ethUtils.sanitizeHex(entry)).toMatchSnapshot();
+        });
+    });
+
+
+    it('strip', () => {
+        const input = ['0x', '0x2540be3ff', '2540be3ff'];
+
+        input.forEach((entry) => {
+            expect(ethUtils.strip(entry)).toMatchSnapshot();
+        });
+    });
+
+    it('calcGasPrice', () => {
+        const input = [{ price: new BigNumber(9898998989), limit: '9' }];
+
+        input.forEach((entry) => {
+            expect(ethUtils.calcGasPrice(entry.price, entry.limit)).toMatchSnapshot();
+        });
+    });
 });
--- a/src/utils/tests/formatUtils.test.js
+++ b/src/utils/tests/formatUtils.test.js
@ -0,0 +1,49 @@
+import * as formatUtils from '../formatUtils';
+
+describe('format utils', () => {
+    it('formatAmount', () => {
+        const input = [
+            { amount: 0, coinInfo: { isBitcoin: true, currencyUnits: 'mbtc', shortcut: 'btc' } },
+            { amount: 1000000, coinInfo: { isBitcoin: true, currencyUnits: 'mbtc', shortcut: 'btc' } },
+            { amount: 0.5, coinInfo: { isBitcoin: true, currencyUnits: 'mbtc', shortcut: 'btc' } },
+            { amount: 1, coinInfo: { isBitcoin: false, shortcut: 'eth' } },
+            { amount: 99999, coinInfo: { isBitcoin: false, shortcut: 'tau' } },
+        ];
+
+        input.forEach((entry) => {
+            expect(formatUtils.formatAmount(entry.amount, entry.coinInfo, entry.coinInfo.currencyUnits)).toMatchSnapshot();
+        });
+    });
+
+    it('formatTime', () => {
+        const input = [0, 1, 2, 100, 999, 45];
+
+        input.forEach((entry) => {
+            expect(formatUtils.formatTime(entry)).toMatchSnapshot();
+        });
+    });
+
+    it('btckb2satoshib', () => {
+        const input = [0, 1, 2, 100, 999];
+
+        input.forEach((entry) => {
+            expect(formatUtils.btckb2satoshib(entry)).toMatchSnapshot();
+        });
+    });
+
+    it('stringToHex', () => {
+        const input = ['test', '0001', 'test99999'];
+
+        input.forEach((entry) => {
+            expect(formatUtils.stringToHex(entry)).toMatchSnapshot();
+        });
+    });
+
+    it('hexToString', () => {
+        const input = ['0074006500730074', '0030003000300031', '007400650073007400390039003900390039'];
+
+        input.forEach((entry) => {
+            expect(formatUtils.hexToString(entry)).toMatchSnapshot();
+        });
+    });
+});
--- a/src/utils/ethUtils.js
+++ b/src/utils/ethUtils.js
@ -1,6 +1,7 @@
 /* @flow */

 import BigNumber from 'bignumber.js';
+import EthereumjsUtil from 'ethereumjs-util';

 export const decimalToHex = (dec: number): string => new BigNumber(dec).toString(16);

@ -29,3 +30,15 @@ export const strip = (str: string): string => {
 };

 export const calcGasPrice = (price: BigNumber, limit: string): string => price.times(limit).toString();
+
+export const validateAddress = (address: string): ?string => {
+    const hasUpperCase = new RegExp('^(.*[A-Z].*)$');
+    if (address.length < 1) {
+        return 'Address is not set';
+    } else if (!EthereumjsUtil.isValidAddress(address)) {
+        return 'Address is not valid';
+    } else if (address.match(hasUpperCase) && !EthereumjsUtil.isValidChecksumAddress(address)) {
+        return 'Address is not a valid checksum';
+    }
+    return null;
+}
--- a/src/utils/formatUtils.js
+++ b/src/utils/formatUtils.js
@ -1,11 +1,9 @@
 /* @flow */

-
-const currencyUnits: string = 'mbtc2';
-
 // TODO: chagne currency units
+const currencyUnitsConstant: string = 'mbtc2';

-export const formatAmount = (n: number, coinInfo: any): string => {
+export const formatAmount = (n: number, coinInfo: any, currencyUnits: string = currencyUnitsConstant): string => {
    const amount = (n / 1e8);
    if (coinInfo.isBitcoin && currencyUnits === 'mbtc' && amount <= 0.1 && n !== 0) {
        const s = (n / 1e5).toString();
--- a/src/utils/networkUtils.js
+++ b/src/utils/networkUtils.js
@ -1,6 +1,5 @@
 /* @flow */

-
 import 'whatwg-fetch';

 export const httpRequest = async (url: string, type: string = 'text'): any => {
@ -15,16 +14,6 @@ export const httpRequest = async (url: string, type: string = 'text'): any => {
        await response.text();
    }
    throw new Error(`${url} ${response.statusText}`);
-
-
-    // return fetch(url, { credentials: 'same-origin' }).then((response) => {
-    //     if (response.status === 200) {
-
-    //         return response.text().then(result => (json ? JSON.parse(result) : result));
-    //     } else {
-    //         throw new Error(response.statusText);
-    //     }
-    // })
 };

 export const JSONRequest = async (url: string): Promise<JSON> => {
--- a/src/views/Landing/components/ConnectDevice/index.js
+++ b/src/views/Landing/components/ConnectDevice/index.js
@ -86,7 +86,7 @@ class ConnectDevice extends Component<Props> {
                        </React.Fragment>
                    )}
                </ConnectTrezorWrapper>
-                {this.props.showWebUsb && (
+                {this.props.showWebUsb && !this.props.showDisconnect && (
                    <React.Fragment>
                        <P>and</P>
                        <Button isWebUsb>
--- a/src/views/Wallet/components/LeftNavigation/Container.js
+++ b/src/views/Wallet/components/LeftNavigation/Container.js
@ -5,6 +5,7 @@ import { connect } from 'react-redux';
 import { withRouter } from 'react-router-dom';

 import * as TrezorConnectActions from 'actions/TrezorConnectActions';
+import * as RouterActions from 'actions/RouterActions';
 import type { MapStateToProps, MapDispatchToProps } from 'react-redux';
 import type { State, Dispatch } from 'flowtype';

@ -36,8 +37,8 @@ const mapDispatchToProps: MapDispatchToProps<Dispatch, OwnProps, DispatchProps>
    acquireDevice: bindActionCreators(TrezorConnectActions.acquire, dispatch),
    forgetDevice: bindActionCreators(TrezorConnectActions.forget, dispatch),
    duplicateDevice: bindActionCreators(TrezorConnectActions.duplicateDevice, dispatch),
-    gotoDeviceSettings: bindActionCreators(TrezorConnectActions.gotoDeviceSettings, dispatch),
-    onSelectDevice: bindActionCreators(TrezorConnectActions.onSelectDevice, dispatch),
+    gotoDeviceSettings: bindActionCreators(RouterActions.gotoDeviceSettings, dispatch),
+    onSelectDevice: bindActionCreators(RouterActions.selectDevice, dispatch),
 });

 export default withRouter(
--- a/src/views/Wallet/components/LeftNavigation/components/AccountMenu/index.js
+++ b/src/views/Wallet/components/LeftNavigation/components/AccountMenu/index.js
@ -20,7 +20,6 @@ import type { Props } from '../common';
 import Row from '../Row';
 import RowCoin from '../RowCoin';

-
 const Wrapper = styled.div``;

 const Text = styled.span`
@ -28,6 +27,10 @@ const Text = styled.span`
    color: ${colors.TEXT_SECONDARY};
 `;

+const TooltipContent = styled.div`
+    font-size: ${FONT_SIZE.SMALLEST};
+`;
+
 const RowAccountWrapper = styled.div`
    width: 100%;
    display: flex;
@ -120,7 +123,7 @@ const AccountMenu = (props: Props): ?React$Element<string> => {

    const deviceAccounts: Accounts = findDeviceAccounts(accounts, selected, location.state.network);

-    let selectedAccounts = deviceAccounts.map((account, i) => {
+    const selectedAccounts = deviceAccounts.map((account, i) => {
        // const url: string = `${baseUrl}/network/${location.state.network}/account/${i}`;
        const url: string = location.pathname.replace(/account+\/([0-9]*)/, `account/${i}`);

@ -158,26 +161,6 @@ const AccountMenu = (props: Props): ?React$Element<string> => {
        );
    });

-    if (selectedAccounts.length < 1) {
-        if (selected.connected) {
-            const url: string = location.pathname.replace(/account+\/([0-9]*)/, 'account/0');
-            selectedAccounts = (
-                <NavLink
-                    to={url}
-                >
-                    <Row column>
-                        <RowAccountWrapper
-                            isSelected
-                            borderTop
-                        >
-                            Account #1
-                        </RowAccountWrapper>
-                    </Row>
-                </NavLink>
-            );
-        }
-    }
-
    let discoveryStatus = null;
    const discovery = props.discovery.find(d => d.deviceState === selected.state && d.network === location.state.network);

@ -204,7 +187,8 @@ const AccountMenu = (props: Props): ?React$Element<string> => {
            } else {
                discoveryStatus = (
                    <Tooltip
-                        content={<React.Fragment>To add a new account, last account must have some transactions.</React.Fragment>}
+                        maxWidth={300}
+                        content={<TooltipContent>To add a new account, last account must have some transactions.</TooltipContent>}
                        placement="bottom"
                    >
                        <Row>
--- a/src/views/Wallet/components/LeftNavigation/components/RowCoin/index.js
+++ b/src/views/Wallet/components/LeftNavigation/components/RowCoin/index.js
@ -20,6 +20,8 @@ const RowCoinWrapper = styled.div`
    display: block;
    font-size: ${FONT_SIZE.BASE};
    color: ${colors.TEXT_PRIMARY};
+    transition: background-color 0.3s, color 0.3s;
+    
    &:hover {
        background-color: ${colors.GRAY_LIGHT};
    }
--- a/src/views/Wallet/components/LeftNavigation/components/StickyContainer/index.js
+++ b/src/views/Wallet/components/LeftNavigation/components/StickyContainer/index.js
@ -19,6 +19,7 @@ const AsideWrapper = styled.aside`
    position: relative;
    top: 0;
    width: 320px;
+    min-width: 320px;
    overflow: hidden;
    background: ${colors.MAIN};
    border-right: 1px solid ${colors.DIVIDER};
--- a/src/views/Wallet/components/LeftNavigation/components/common.js
+++ b/src/views/Wallet/components/LeftNavigation/components/common.js
@ -1,5 +1,6 @@
 /* @flow */
 import * as TrezorConnectActions from 'actions/TrezorConnectActions';
+import * as RouterActions from 'actions/RouterActions';
 import { toggleDeviceDropdown } from 'actions/WalletActions';
 import type { State } from 'flowtype';

@ -22,8 +23,8 @@ export type DispatchProps = {
    acquireDevice: typeof TrezorConnectActions.acquire,
    forgetDevice: typeof TrezorConnectActions.forget,
    duplicateDevice: typeof TrezorConnectActions.duplicateDevice,
-    gotoDeviceSettings: typeof TrezorConnectActions.gotoDeviceSettings,
-    onSelectDevice: typeof TrezorConnectActions.onSelectDevice,
+    gotoDeviceSettings: typeof RouterActions.gotoDeviceSettings,
+    onSelectDevice: typeof RouterActions.selectDevice,
 }

 export type Props = StateProps & DispatchProps;
--- a/src/views/Wallet/components/LeftNavigation/index.js
+++ b/src/views/Wallet/components/LeftNavigation/index.js
@ -24,15 +24,15 @@ const TransitionContentWrapper = styled.div`
 `;

 const Footer = styled.div`
-    position: fixed;
+    position: relative;
+    width: 320px;
    bottom: 0;
    background: ${colors.MAIN};
    border-right: 1px solid ${colors.DIVIDER};
 `;

 const Body = styled.div`
-    overflow: auto;
-    background: ${colors.LANDING};
+    width: 320px;
 `;

 const Help = styled.div`
@ -58,6 +58,25 @@ const A = styled.a`
    }
 `;

+const TransitionMenu = (props: TransitionMenuProps): React$Element<TransitionGroup> => (
+    <TransitionGroupWrapper component="div" className="transition-container">
+        <CSSTransition
+            key={props.animationType}
+            onExit={() => { window.dispatchEvent(new Event('resize')); }}
+            onExited={() => window.dispatchEvent(new Event('resize'))}
+            in
+            out
+            classNames={props.animationType}
+            appear={false}
+            timeout={300}
+        >
+            <TransitionContentWrapper>
+                { props.children }
+            </TransitionContentWrapper>
+        </CSSTransition>
+    </TransitionGroupWrapper>
+);
+
 class LeftNavigation extends Component {
    constructor(props) {
        super(props);
@ -96,39 +115,6 @@ class LeftNavigation extends Component {
        }
    }

-    // TODO: refactor to transition component for reuse of transitions
-    getMenuTransition(children) {
-        return (
-            <TransitionGroupWrapper component="div" className="transition-container">
-                <CSSTransition
-                    key={this.state.animationType}
-                    onEnter={() => {
-                        console.warn('ON ENTER');
-                    }}
-                    onEntering={() => {
-                        console.warn('ON ENTERING (ACTIVE)');
-                    }}
-                    onExit={() => {
-                        console.warn('ON EXIT');
-                        window.dispatchEvent(new Event('resize'));
-                    }}
-                    onExiting={() => {
-                        console.warn('ON EXITING (ACTIVE)');
-                    }}
-                    onExited={() => window.dispatchEvent(new Event('resize'))}
-                    classNames={this.state.animationType}
-                    appear={false}
-                    timeout={30000}
-                    in
-                    out
-                >
-                    <TransitionContentWrapper>
-                        {children}
-                    </TransitionContentWrapper>
-                </CSSTransition>
-            </TransitionGroupWrapper>);
-    }
-
    shouldRenderAccounts() {
        const { selectedDevice } = this.props.wallet;
        return selectedDevice
@ -148,6 +134,22 @@ class LeftNavigation extends Component {
    }

    render() {
+        const { props } = this;
+        let menu;
+        if (this.shouldRenderAccounts()) {
+            menu = (
+                <TransitionMenu animationType="slide-left">
+                    <AccountMenu {...props} />
+                </TransitionMenu>
+            );
+        } else if (this.shouldRenderCoins()) {
+            menu = (
+                <TransitionMenu animationType="slide-right">
+                    <CoinMenu {...props} />
+                </TransitionMenu>
+            );
+        }
+
        return (
            <StickyContainer
                location={this.props.location.pathname}
@ -163,8 +165,7 @@ class LeftNavigation extends Component {
                />
                <Body>
                    {this.state.shouldRenderDeviceSelection && <DeviceMenu {...this.props} />}
-                    {this.shouldRenderAccounts() && this.getMenuTransition(<AccountMenu {...this.props} />)}
-                    {this.shouldRenderCoins() && this.getMenuTransition(<CoinMenu {...this.props} />)}
+                    {menu}
                </Body>
                <Footer className="sticky-bottom">
                    <Help>
--- a/src/views/Wallet/components/SelectedAccount/index.js
+++ b/src/views/Wallet/components/SelectedAccount/index.js
@ -30,10 +30,11 @@ const SelectedAccount = (props: Props) => {
    const {
        account,
        discovery,
-        network
+        network,
    } = accountState;

-    if (!network) return; // TODO: this shouldn't happen. change accountState reducer?
+    // corner case: accountState didn't finish loading state after LOCATION_CHANGE action
+    if (!network) return (<Notification type="info" title="Loading account state..." />);

    const blockchain = props.blockchain.find(b => b.name === network.network);
    if (blockchain && !blockchain.connected) {
@ -43,12 +44,13 @@ const SelectedAccount = (props: Props) => {
                title="Backend not connected"
                actions={
                    [{
-                        label: "Try again",
+                        label: 'Try again',
                        callback: async () => {
                            await props.blockchainReconnect(network.network);
-                        }
+                        },
                    }]
-                } />
+                }
+            />
        );
    }

--- a/src/views/Wallet/views/AccountSend/Container.js
+++ b/src/views/Wallet/views/AccountSend/Container.js
@ -7,7 +7,6 @@ import { connect } from 'react-redux';

 import { reconnect } from 'actions/DiscoveryActions';
 import SendFormActions from 'actions/SendFormActions';
-import * as SessionStorageActions from 'actions/SessionStorageActions';
 import type { MapStateToProps, MapDispatchToProps } from 'react-redux';
 import type { State, Dispatch } from 'flowtype';
 import type { StateProps as BaseStateProps, DispatchProps as BaseDispatchProps } from 'views/Wallet/components/SelectedAccount';
@ -24,7 +23,6 @@ export type StateProps = BaseStateProps & {

 export type DispatchProps = BaseDispatchProps & {
    sendFormActions: typeof SendFormActions,
-    saveSessionStorage: typeof SessionStorageActions.save
 }

 export type Props = StateProps & BaseStateProps & DispatchProps & BaseDispatchProps;
@ -43,7 +41,6 @@ const mapStateToProps: MapStateToProps<State, OwnProps, StateProps> = (state: St
 const mapDispatchToProps: MapDispatchToProps<Dispatch, OwnProps, DispatchProps> = (dispatch: Dispatch): DispatchProps => ({
    blockchainReconnect: bindActionCreators(reconnect, dispatch),
    sendFormActions: bindActionCreators(SendFormActions, dispatch),
-    saveSessionStorage: bindActionCreators(SessionStorageActions.save, dispatch),
 });

 export default connect(mapStateToProps, mapDispatchToProps)(AccountSend);
--- a/src/views/Wallet/views/AccountSend/components/PendingTransactions/index.js
+++ b/src/views/Wallet/views/AccountSend/components/PendingTransactions/index.js
@ -18,12 +18,17 @@ type Props = {
 }

 const Wrapper = styled.div`
+    padding-top: 20px;
    border-top: 1px solid ${colors.DIVIDER};
 `;

+const StyledLink = styled(Link)`
+    text-decoration: none;
+`;
+
 const TransactionWrapper = styled.div`
    border-bottom: 1px solid ${colors.DIVIDER};
-    padding: 14px 48px;
+    padding: 14px 0;
    display: flex;
    flex-direction: row;
    align-items: center;
@ -39,13 +44,17 @@ const TransactionIcon = styled.div`
    width: 36px;
    height: 36px;
    border-radius: 50%;
-    line-height: 30px;
+    line-height: 25px;
    text-transform: uppercase;
    user-select: none;
    text-align: center;
-    color: ${props => props.color};
+    color: ${props => props.textColor};
    background: ${props => props.background};
    border-color: ${props => props.borderColor};
+
+    &:before {
+        content: ${props => props.color};
+    }
 `;

 const P = styled.p``;
@ -54,7 +63,9 @@ const TransactionName = styled.div`
    flex: 1;
 `;

-const TransactionAmount = styled.div``;
+const TransactionAmount = styled.div`
+    color: colors.TEXT_SECONDARY;
+`;

 class PendingTransactions extends Component<Props> {
    getPendingTransactions() {
@ -62,7 +73,11 @@ class PendingTransactions extends Component<Props> {
    }

    getTransactionIconColors(tx: any) {
-        let iconColors = { };
+        let iconColors = {
+            textColor: '#fff',
+            background: '#000',
+            borderColor: '#000',
+        };
        const bgColorFactory = new ColorHash({ lightness: 0.7 });
        const textColorFactory = new ColorHash();

@ -73,26 +88,25 @@ class PendingTransactions extends Component<Props> {

            if (!token) {
                iconColors = {
-                    color: '#ffffff',
+                    textColor: '#ffffff',
                    background: '#000000',
                    borderColor: '#000000',
                };
            } else {
                const bgColor: string = bgColorFactory.hex(token.name);
                iconColors = {
-                    color: textColorFactory.hex(token.name),
+                    textColor: textColorFactory.hex(token.name),
                    background: bgColor,
                    borderColor: bgColor,
                };
            }
        } else {
            iconColors = {
-                color: textColorFactory.hex(tx.network),
+                textColor: textColorFactory.hex(tx.network),
                background: bgColorFactory.hex(tx.network),
                borderColor: bgColorFactory.hex(tx.network),
            };
        }
-
        return iconColors;
    }

@ -125,9 +139,11 @@ class PendingTransactions extends Component<Props> {
            <Wrapper>
                <H2>Pending transactions</H2>
                {this.getPendingTransactions().map(tx => (
-                    <TransactionWrapper>
+                    <TransactionWrapper
+                        key={tx.id}
+                    >
                        <TransactionIcon
-                            color={() => this.getTransactionIconColors(tx).color}
+                            textColor={() => this.getTransactionIconColors(tx).textColor}
                            background={() => this.getTransactionIconColors(tx).background}
                            borderColor={() => this.getTransactionIconColors(tx).borderColor}
                        >
@ -137,13 +153,14 @@ class PendingTransactions extends Component<Props> {
                        </TransactionIcon>

                        <TransactionName>
-                            <Link
+                            <StyledLink
                                href={`${this.props.network.explorer.tx}${tx.id}`}
                                target="_blank"
                                rel="noreferrer noopener"
+                                isGray
                            >
                                {this.getTransactionName(tx)}
-                            </Link>
+                            </StyledLink>
                        </TransactionName>

                        <TransactionAmount>
--- a/src/views/Wallet/views/AccountSend/index.js
+++ b/src/views/Wallet/views/AccountSend/index.js
@ -21,6 +21,10 @@ import PendingTransactions from './components/PendingTransactions';

 import type { Props } from './Container';

+// TODO: Decide on a small screen width for the whole app
+// and put it inside config/variables.js
+const SmallScreenWidth = '850px';
+
 type State = {
    isAdvancedSettingsHidden: boolean,
    shouldAnimateAdvancedSettingsToggle: boolean,
@ -76,6 +80,7 @@ const SetMaxAmountButton = styled(Button)`
 `;

 const CurrencySelect = styled(Select)`
+    min-width: 77px;
    height: 34px;
    flex: 0.2;
 `;
@ -108,12 +113,21 @@ const StyledLink = styled(Link)`
 `;

 const ToggleAdvancedSettingsWrapper = styled.div`
+    min-height: 40px;
    margin-bottom: 20px;
    display: flex;
+    flex-direction: row;
    justify-content: space-between;
+
+    @media screen and (max-width: ${SmallScreenWidth}) {
+        ${props => (props.isAdvancedSettingsHidden && css`
+            flex-direction: column;
+        `)}
+    }
 `;

 const ToggleAdvancedSettingsButton = styled(Button)`
+    min-height: 40px;
    padding: 0;
    display: flex;
    align-items: center;
@ -121,7 +135,12 @@ const ToggleAdvancedSettingsButton = styled(Button)`
 `;

 const SendButton = styled(Button)`
-    min-width: 50%;
+    min-width: ${props => (props.isAdvancedSettingsHidden ? '50%' : '100%')};
+    font-size: 13px;
+
+    @media screen and (max-width: ${SmallScreenWidth}) {
+        margin-top: ${props => (props.isAdvancedSettingsHidden ? '10px' : 0)};
+    }
 `;

 const AdvancedSettingsWrapper = styled.div`
@ -180,17 +199,17 @@ class AccountSend extends Component<Props, State> {
    componentWillReceiveProps(newProps: Props) {
        calculate(this.props, newProps);
        validation(newProps);
-
-        this.props.saveSessionStorage();
    }

    getAddressInputState(address: string, addressErrors: string, addressWarnings: string) {
        let state = '';
        if (address && !addressErrors) {
            state = 'success';
-        } else if (addressWarnings && !addressErrors) {
+        }
+        if (addressWarnings && !addressErrors) {
            state = 'warning';
-        } else if (addressErrors) {
+        }
+        if (addressErrors) {
            state = 'error';
        }
        return state;
@ -200,27 +219,19 @@ class AccountSend extends Component<Props, State> {
        let state = '';
        if (amountWarnings && !amountErrors) {
            state = 'warning';
-        } else if (amountErrors) {
+        }
+        if (amountErrors) {
            state = 'error';
        }
        return state;
    }

-    getAmountInputBottomText(amountErrors: string, amountWarnings: string) {
-        let text = '';
-        if (amountWarnings && !amountErrors) {
-            text = amountWarnings;
-        } else if (amountErrors) {
-            text = amountErrors;
-        }
-        return text;
-    }
-
    getGasLimitInputState(gasLimitErrors: string, gasLimitWarnings: string) {
        let state = '';
        if (gasLimitWarnings && !gasLimitErrors) {
            state = 'warning';
-        } else if (gasLimitErrors) {
+        }
+        if (gasLimitErrors) {
            state = 'error';
        }
        return state;
@ -230,7 +241,8 @@ class AccountSend extends Component<Props, State> {
        let state = '';
        if (gasPriceWarnings && !gasPriceErrors) {
            state = 'warning';
-        } else if (gasPriceErrors) {
+        }
+        if (gasPriceErrors) {
            state = 'error';
        }
        return state;
@ -275,6 +287,7 @@ class AccountSend extends Component<Props, State> {
            total,
            errors,
            warnings,
+            infos,
            data,
            sending,
            gasLimit,
@ -340,7 +353,7 @@ class AccountSend extends Component<Props, State> {
                            autoCapitalize="off"
                            spellCheck="false"
                            topLabel="Address"
-                            bottomText={errors.address ? 'Wrong Address' : ''}
+                            bottomText={errors.address || warnings.address || infos.address}
                            value={address}
                            onChange={event => onAddressChange(event.target.value)}
                        />
@ -356,7 +369,7 @@ class AccountSend extends Component<Props, State> {
                            topLabel="Amount"
                            value={amount}
                            onChange={event => onAmountChange(event.target.value)}
-                            bottomText={this.getAmountInputBottomText(errors.amount, warnings.amount)}
+                            bottomText={errors.amount || warnings.amount || infos.amount}
                            sideAddons={[
                                (
                                    <SetMaxAmountButton
@ -430,7 +443,9 @@ class AccountSend extends Component<Props, State> {
                        />
                    </InputRow>

-                    <ToggleAdvancedSettingsWrapper>
+                    <ToggleAdvancedSettingsWrapper
+                        isAdvancedSettingsHidden={this.state.isAdvancedSettingsHidden}
+                    >
                        <ToggleAdvancedSettingsButton
                            isTransparent
                            onClick={() => this.handleToggleAdvancedSettingsButton()}
@ -448,6 +463,7 @@ class AccountSend extends Component<Props, State> {
                        {this.state.isAdvancedSettingsHidden && (
                            <SendButton
                                isDisabled={isSendButtonDisabled}
+                                isAdvancedSettingsHidden={this.state.isAdvancedSettingsHidden}
                                onClick={() => onSend()}
                            >
                                {sendButtonText}
@ -486,7 +502,7 @@ class AccountSend extends Component<Props, State> {
                                            </Tooltip>
                                        </InputLabelWrapper>
                                    )}
-                                    bottomText={errors.gasLimit ? errors.gasLimit : warnings.gasLimit}
+                                    bottomText={errors.gasLimit || warnings.gasLimit || infos.gasLimit}
                                    value={gasLimit}
                                    isDisabled={networkSymbol === currency && data.length > 0}
                                    onChange={event => onGasLimitChange(event.target.value)}
@ -520,7 +536,7 @@ class AccountSend extends Component<Props, State> {
                                            </Tooltip>
                                        </InputLabelWrapper>
                                    )}
-                                    bottomText={errors.gasPrice ? errors.gasPrice : warnings.gasPrice}
+                                    bottomText={errors.gasPrice || warnings.gasPrice || infos.gasPrice}
                                    value={gasPrice}
                                    onChange={event => onGasPriceChange(event.target.value)}
                                />
--- a/src/views/Wallet/views/AccountSummary/index.js
+++ b/src/views/Wallet/views/AccountSummary/index.js
@ -131,7 +131,12 @@ const AccountSummary = (props: Props) => {
                    placeholder="Search for the token"
                    loadingMessage={() => 'Loading...'}
                    noOptionsMessage={() => 'Token not found'}
-                    onChange={token => props.addToken(token, account)}
+                    onChange={(token) => {
+                        const isAdded = tokens.find(t => t.symbol === token.symbol);
+                        if (!isAdded) {
+                            props.addToken(token, account);
+                        }
+                    }}
                    loadOptions={input => props.loadTokens(input, account.network)}
                    formatOptionLabel={(option) => {
                        const isAdded = tokens.find(t => t.symbol === option.symbol);
--- a/src/views/index.js
+++ b/src/views/index.js
@ -6,6 +6,7 @@ import { ConnectedRouter } from 'react-router-redux';

 // general
 import ErrorBoundary from 'support/ErrorBoundary';
+import { getPattern } from 'support/routes';
 import LandingContainer from 'views/Landing/Container';

 // wallet views
@ -29,25 +30,24 @@ const App = () => (
    <Provider store={store}>
        <ConnectedRouter history={history}>
            <Switch>
-                <Route exact path="/" component={LandingContainer} />
-                <Route exact path="/bridge" component={LandingContainer} />
-                <Route exact path="/import" component={LandingContainer} />
+                <Route exact path={getPattern('landing-home')} component={LandingContainer} />
+                <Route exact path={getPattern('landing-bridge')} component={LandingContainer} />
+                <Route exact path={getPattern('landing-import')} component={LandingContainer} />
                <Route>
                    <ErrorBoundary>
                        <WalletContainer>
-                            <Route exact path="/settings" component={WalletSettings} />
-                            <Route exact path="/device/:device/" component={WalletDashboard} />
-                            <Route exact path="/device/:device/network/:network" component={WalletDashboard} />
-                            <Route exact path="/device/:device/acquire" component={WalletAcquire} />
-                            <Route exact path="/device/:device/unreadable" component={WalletUnreadableDevice} />
-                            <Route exact path="/device/:device/bootloader" component={WalletBootloader} />
-                            <Route exact path="/device/:device/initialize" component={WalletInitialize} />
-                            <Route exact path="/device/:device/settings" component={WalletDeviceSettings} />
-                            <Route exact path="/device/:device/network/:network/account/:account" component={AccountSummary} />
-                            <Route path="/device/:device/network/:network/account/:account/send" component={AccountSend} />
-                            <Route path="/device/:device/network/:network/account/:account/send/override" component={AccountSend} />
-                            <Route path="/device/:device/network/:network/account/:account/receive" component={AccountReceive} />
-                            <Route path="/device/:device/network/:network/account/:account/signverify" component={AccountSignVerify} />
+                            <Route exact path={getPattern('wallet-setting')} component={WalletSettings} />
+                            <Route exact path={getPattern('wallet-dashboard')} component={WalletDashboard} />
+                            <Route exact path={getPattern('wallet-acquire')} component={WalletAcquire} />
+                            <Route exact path={getPattern('wallet-unreadable')} component={WalletUnreadableDevice} />
+                            <Route exact path={getPattern('wallet-bootloader')} component={WalletBootloader} />
+                            <Route exact path={getPattern('wallet-initialize')} component={WalletInitialize} />
+                            <Route exact path={getPattern('wallet-device-settings')} component={WalletDeviceSettings} />
+                            <Route exact path={getPattern('wallet-account-summary')} component={AccountSummary} />
+                            <Route path={getPattern('wallet-account-send')} component={AccountSend} />
+                            <Route path={getPattern('wallet-account-send-override')} component={AccountSend} />
+                            <Route path={getPattern('wallet-account-receive')} component={AccountReceive} />
+                            <Route path={getPattern('wallet-account-signverify')} component={AccountSignVerify} />
                        </WalletContainer>
                    </ErrorBoundary>
                </Route>
--- a/webpack/dev.babel.js
+++ b/webpack/dev.babel.js
@ -1,12 +1,16 @@
 import webpack from 'webpack';
-
+import GitRevisionPlugin from 'git-revision-webpack-plugin';
 import HtmlWebpackPlugin from 'html-webpack-plugin';
+import FlowWebpackPlugin from 'flow-webpack-plugin';
+
 import { BundleAnalyzerPlugin } from 'webpack-bundle-analyzer';

 import {
    SRC, BUILD, PORT, PUBLIC,
 } from './constants';

+const gitRevisionPlugin = new GitRevisionPlugin();
+
 module.exports = {
    watch: true,
    mode: 'development',
@ -45,6 +49,7 @@ module.exports = {
                    {
                        loader: 'stylelint-custom-processor-loader',
                        options: {
+                            emitWarning: true,
                            configPath: '.stylelintrc',
                        },
                    },
@ -88,6 +93,12 @@ module.exports = {
        hints: false,
    },
    plugins: [
+        new webpack.DefinePlugin({
+            COMMITHASH: JSON.stringify(gitRevisionPlugin.commithash()),
+        }),
+        new FlowWebpackPlugin({
+            reportingSeverity: 'warning'
+        }),
        new HtmlWebpackPlugin({
            chunks: ['index'],
            template: `${SRC}index.html`,
--- a/webpack/local.babel.js
+++ b/webpack/local.babel.js
@ -1,5 +1,6 @@
 import webpack from 'webpack';
 import { BundleAnalyzerPlugin } from 'webpack-bundle-analyzer';
+import GitRevisionPlugin from 'git-revision-webpack-plugin';
 import HtmlWebpackPlugin from 'html-webpack-plugin';
 import CopyWebpackPlugin from 'copy-webpack-plugin';
 import MiniCssExtractPlugin from '../../trezor-connect/node_modules/mini-css-extract-plugin';
@ -15,6 +16,8 @@ import {
    PORT,
 } from './constants';

+const gitRevisionPlugin = new GitRevisionPlugin();
+
 module.exports = {
    watch: true,
    mode: 'development',
@ -115,7 +118,6 @@ module.exports = {
            filename: '[name].css',
            chunkFilename: '[id].css',
        }),
-        
        new HtmlWebpackPlugin({
            chunks: ['index'],
            template: `${SRC}index.html`,
@ -164,6 +166,7 @@ module.exports = {

        new webpack.DefinePlugin({
            LOCAL: JSON.stringify(`http://localhost:${PORT}/`),
+            COMMITHASH: JSON.stringify(gitRevisionPlugin.commithash()),
        }),

        // ignore node lib from trezor-link
--- a/webpack/production.babel.js
+++ b/webpack/production.babel.js
@ -1,9 +1,13 @@

 import webpack from 'webpack';
+import GitRevisionPlugin from 'git-revision-webpack-plugin';
 import HtmlWebpackPlugin from 'html-webpack-plugin';
 import CopyWebpackPlugin from 'copy-webpack-plugin';
+import FlowWebpackPlugin from 'flow-webpack-plugin';
 import { SRC, BUILD, PUBLIC } from './constants';

+const gitRevisionPlugin = new GitRevisionPlugin();
+
 module.exports = {
    mode: 'production',
    entry: {
@ -62,7 +66,9 @@ module.exports = {
    plugins: [
        new webpack.DefinePlugin({
            'process.env.BUILD': JSON.stringify(process.env.BUILD),
+            COMMITHASH: JSON.stringify(gitRevisionPlugin.commithash()
        }),
+        new FlowWebpackPlugin(),
        new HtmlWebpackPlugin({
            chunks: ['index'],
            template: `${SRC}index.html`,
--- a/yarn.lock
+++ b/yarn.lock
@ -255,6 +255,10 @@
  version "0.7.0"
  resolved "https://registry.yarnpkg.com/@sindresorhus/is/-/is-0.7.0.tgz#9a06f4f137ee84d7df0460c1fdb1135ffa6c50fd"

+"@types/jest@^23.0.0":
+  version "23.3.2"
+  resolved "https://registry.yarnpkg.com/@types/jest/-/jest-23.3.2.tgz#07b90f6adf75d42c34230c026a2529e56c249dbb"
+
 "@webassemblyjs/ast@1.5.13":
  version "1.5.13"
  resolved "https://registry.yarnpkg.com/@webassemblyjs/ast/-/ast-1.5.13.tgz#81155a570bd5803a30ec31436bc2c9c0ede38f25"
@ -3304,6 +3308,10 @@ dom-helpers@^3.2.0:
  version "3.2.1"
  resolved "https://registry.yarnpkg.com/dom-helpers/-/dom-helpers-3.2.1.tgz#3203e07fed217bd1f424b019735582fc37b2825a"

+dom-helpers@^3.3.1:
+  version "3.3.1"
+  resolved "https://registry.yarnpkg.com/dom-helpers/-/dom-helpers-3.3.1.tgz#fc1a4e15ffdf60ddde03a480a9c0fece821dd4a6"
+
 dom-serializer@0:
  version "0.1.0"
  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.1.0.tgz#073c697546ce0780ce23be4a28e293e40bc30c82"
@ -4326,6 +4334,10 @@ flow-parser@^0.*:
  version "0.72.0"
  resolved "https://registry.yarnpkg.com/flow-parser/-/flow-parser-0.72.0.tgz#6c8041e76ac7d0be1a71ce29c00cd1435fb6013c"

+flow-webpack-plugin@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/flow-webpack-plugin/-/flow-webpack-plugin-1.2.0.tgz#1958821d16135028e391cad5ee2f3a4fa78197ec"
+
 flush-write-stream@^1.0.0:
  version "1.0.2"
  resolved "https://registry.yarnpkg.com/flush-write-stream/-/flush-write-stream-1.0.2.tgz#c81b90d8746766f1a609a46809946c45dd8ae417"
@ -4539,6 +4551,10 @@ gh-got@^6.0.0:
    got "^7.0.0"
    is-plain-obj "^1.1.0"

+git-revision-webpack-plugin@^3.0.3:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/git-revision-webpack-plugin/-/git-revision-webpack-plugin-3.0.3.tgz#f909949d7851d1039ed530518f73f5d46594e66f"
+
 github-username@^4.0.0:
  version "4.1.0"
  resolved "https://registry.yarnpkg.com/github-username/-/github-username-4.1.0.tgz#cbe280041883206da4212ae9e4b5f169c30bf417"
@ -5622,7 +5638,7 @@ isobject@^3.0.0, isobject@^3.0.1:
  version "3.0.1"
  resolved "https://registry.yarnpkg.com/isobject/-/isobject-3.0.1.tgz#4e431e92b11a9731636aa1f9c8d1ccbcfdab78df"

-isomorphic-fetch@^2.1.1:
+isomorphic-fetch@^2.1.1, isomorphic-fetch@^2.2.1:
  version "2.2.1"
  resolved "https://registry.yarnpkg.com/isomorphic-fetch/-/isomorphic-fetch-2.2.1.tgz#611ae1acf14f5e81f729507472819fe9733558a9"
  dependencies:
@ -5814,6 +5830,14 @@ jest-environment-node@^23.4.0:
    jest-mock "^23.2.0"
    jest-util "^23.4.0"

+jest-fetch-mock@^1.6.5:
+  version "1.6.5"
+  resolved "https://registry.yarnpkg.com/jest-fetch-mock/-/jest-fetch-mock-1.6.5.tgz#178fa1a937ef6f61fb8e8483b6d4602b17e0d96d"
+  dependencies:
+    "@types/jest" "^23.0.0"
+    isomorphic-fetch "^2.2.1"
+    promise-polyfill "^7.1.1"
+
 jest-get-type@^22.1.0:
  version "22.4.3"
  resolved "https://registry.yarnpkg.com/jest-get-type/-/jest-get-type-22.4.3.tgz#e3a8504d8479342dd4420236b322869f18900ce4"
@ -8079,6 +8103,10 @@ promise-inflight@^1.0.1:
  version "1.0.1"
  resolved "https://registry.yarnpkg.com/promise-inflight/-/promise-inflight-1.0.1.tgz#98472870bf228132fcbdd868129bad12c3c029e3"

+promise-polyfill@^7.1.1:
+  version "7.1.2"
+  resolved "https://registry.yarnpkg.com/promise-polyfill/-/promise-polyfill-7.1.2.tgz#ab05301d8c28536301622d69227632269a70ca3b"
+
 promise@^7.1.1:
  version "7.3.1"
  resolved "https://registry.yarnpkg.com/promise/-/promise-7.3.1.tgz#064b72602b18f90f29192b8b1bc418ffd1ebd3bf"
@ -8100,13 +8128,6 @@ prop-types@15.x, prop-types@^15.5.10, prop-types@^15.5.4, prop-types@^15.5.8, pr
    loose-envify "^1.3.1"
    object-assign "^4.1.1"

-prop-types@>=15.5.10, prop-types@^15.6.2:
-  version "15.6.2"
-  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.6.2.tgz#05d5ca77b4453e985d60fc7ff8c859094a497102"
-  dependencies:
-    loose-envify "^1.3.1"
-    object-assign "^4.1.1"
-
 prop-types@^15.6.1:
  version "15.6.1"
  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.6.1.tgz#36644453564255ddda391191fb3a125cbdf654ca"
@ -8115,6 +8136,13 @@ prop-types@^15.6.1:
    loose-envify "^1.3.1"
    object-assign "^4.1.1"

+prop-types@^15.6.2:
+  version "15.6.2"
+  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.6.2.tgz#05d5ca77b4453e985d60fc7ff8c859094a497102"
+  dependencies:
+    loose-envify "^1.3.1"
+    object-assign "^4.1.1"
+
 proxy-addr@~2.0.3:
  version "2.0.3"
  resolved "https://registry.yarnpkg.com/proxy-addr/-/proxy-addr-2.0.3.tgz#355f262505a621646b3130a728eb647e22055341"
@ -8451,12 +8479,6 @@ react-select@2.0.0:
    react-input-autosize "^2.2.1"
    react-transition-group "^2.2.1"

-react-sticky-el@^1.0.20:
-  version "1.0.20"
-  resolved "https://registry.yarnpkg.com/react-sticky-el/-/react-sticky-el-1.0.20.tgz#b3c5e7128218633f440dc67aec239d1cd078342d"
-  dependencies:
-    prop-types ">=15.5.10"
-
 react-transition-group@^2.2.1:
  version "2.2.1"
  resolved "https://registry.yarnpkg.com/react-transition-group/-/react-transition-group-2.2.1.tgz#e9fb677b79e6455fd391b03823afe84849df4a10"
@ -8468,6 +8490,15 @@ react-transition-group@^2.2.1:
    prop-types "^15.5.8"
    warning "^3.0.0"

+react-transition-group@^2.4.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/react-transition-group/-/react-transition-group-2.4.0.tgz#1d9391fabfd82e016f26fabd1eec329dbd922b5a"
+  dependencies:
+    dom-helpers "^3.3.1"
+    loose-envify "^1.3.1"
+    prop-types "^15.6.2"
+    react-lifecycles-compat "^3.0.4"
+
 "react@^15.4.2 || ^16.0.0":
  version "16.2.0"
  resolved "https://registry.yarnpkg.com/react/-/react-16.2.0.tgz#a31bd2dab89bff65d42134fa187f24d054c273ba"