63 lines
1.9 KiB
TypeScript
63 lines
1.9 KiB
TypeScript
export const REDUX_STATE = 'REDUX_STATE';
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import { State as SwapState } from 'reducers/swap';
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import { IWallet, WalletConfig } from 'libs/wallet';
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import { sha256 } from 'ethereumjs-util';
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import { AppState } from 'reducers';
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export function loadState<T>(): T | undefined {
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try {
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const serializedState = localStorage.getItem(REDUX_STATE);
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if (serializedState === null) {
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return undefined;
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}
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return JSON.parse(serializedState || '{}');
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} catch (err) {
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console.warn(' Warning: corrupted local storage', err);
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}
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}
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export const saveState = (state: any) => {
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try {
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const serializedState = JSON.stringify(state);
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localStorage.setItem(REDUX_STATE, serializedState);
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} catch (err) {
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console.warn(' Warning: failed to set to local storage', state);
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}
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};
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export type SwapLocalStorage = SwapState;
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export function loadStatePropertyOrEmptyObject<T>(key: keyof AppState): T | undefined {
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const localStorageState: Partial<AppState> | undefined = loadState();
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if (localStorageState) {
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if (localStorageState.hasOwnProperty(key)) {
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return localStorageState[key] as T;
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}
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}
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return undefined;
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}
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export function saveWalletConfig(wallet: IWallet, state: Partial<WalletConfig>): WalletConfig {
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const oldState = loadWalletConfig(wallet);
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const newState = { ...oldState, ...state };
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const key = getWalletConfigKey(wallet);
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localStorage.setItem(key, JSON.stringify(newState));
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return newState;
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}
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export function loadWalletConfig(wallet: IWallet): WalletConfig {
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try {
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const key = getWalletConfigKey(wallet);
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const state = localStorage.getItem(key);
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return state ? JSON.parse(state) : {};
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} catch (err) {
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console.error('Failed to load wallet state', err);
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return {};
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}
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}
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function getWalletConfigKey(wallet: IWallet): string {
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const address = wallet.getAddressString();
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return sha256(`${address}-mycrypto`).toString('hex');
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}
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