mirror of https://github.com/trezor/trezor-wallet
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95 lines
2.9 KiB
95 lines
2.9 KiB
/* @flow */
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'use strict';
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import { LOCATION_CHANGE } from 'react-router-redux';
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import * as WALLET from '../actions/constants/wallet';
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import * as WalletActions from '../actions/WalletActions';
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import * as LocalStorageActions from '../actions/LocalStorageActions';
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import * as TrezorConnectActions from '../actions/TrezorConnectActions';
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import type {
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Middleware,
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MiddlewareAPI,
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MiddlewareDispatch,
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State,
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Dispatch,
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Action,
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GetState,
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TrezorDevice,
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} from '~/flowtype';
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const getSelectedDevice = (state: State): ?TrezorDevice => {
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const locationState = state.router.location.state;
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if (!locationState.device) return undefined;
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const instance: ?number = locationState.deviceInstance ? parseInt(locationState.deviceInstance) : undefined;
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return state.connect.devices.find(d => {
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if (d.unacquired && d.path === locationState.device) {
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return true;
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} else if (d.features && d.features.bootloader_mode && d.path === locationState.device) {
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return true;
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} else if (d.features && d.features.device_id === locationState.device && d.instance === instance) {
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return true;
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}
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return false;
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});
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}
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/**
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* Middleware
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*/
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const WalletService: Middleware = (api: MiddlewareAPI) => (next: MiddlewareDispatch) => (action: Action): Action => {
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const prevState = api.getState();
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const locationChange: boolean = action.type === LOCATION_CHANGE;
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// Application live cycle starts here
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if (locationChange) {
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const { location } = api.getState().router;
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if (!location) {
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api.dispatch( WalletActions.init() );
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// load data from config.json and local storage
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api.dispatch( LocalStorageActions.loadData() );
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}
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}
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// pass action
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next(action);
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const state = api.getState();
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// handle devices state change
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if (locationChange || prevState.connect.devices !== state.connect.devices) {
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const device = getSelectedDevice(state);
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const currentDevice = state.wallet.selectedDevice;
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if (state.wallet.selectedDevice !== device) {
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if (!locationChange && currentDevice && device && (currentDevice.path === device.path || currentDevice.instance === device.instance)) {
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api.dispatch({
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type: WALLET.UPDATE_SELECTED_DEVICE,
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device
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})
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} else {
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api.dispatch({
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type: WALLET.SET_SELECTED_DEVICE,
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device
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});
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if (device) {
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api.dispatch( TrezorConnectActions.getSelectedDeviceState() );
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} else {
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api.dispatch( TrezorConnectActions.switchToFirstAvailableDevice() );
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}
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}
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}
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}
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return action;
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};
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export default WalletService; |