trezor-wallet/src/js/reducers/SummaryReducer.js

/* @flow */
'use strict';

import * as ACCOUNT from '../actions/constants/account';
import * as SUMMARY from '../actions/constants/summary';
import type { Action } from '~/flowtype';
import type { NetworkToken } from './LocalStorageReducer';

export type State = {
    details: boolean;
    selectedToken: ?NetworkToken;
}

export const initialState: State = {
    details: true,
    selectedToken: null
}

export default (state: State = initialState, action: Action): State => {

    switch (action.type) {

        case ACCOUNT.DISPOSE :
            return initialState;

        case SUMMARY.INIT :
            return action.state;

        case SUMMARY.DISPOSE :
            return initialState;

        case SUMMARY.DETAILS_TOGGLE :
            return {
                ...state,
                details: !state.details
            }

        default:
            return state;
    }

}