/* * Copyright (C) Contributors to the Suwayomi project * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at https://mozilla.org/MPL/2.0/. */ import React, { useState, Dispatch, SetStateAction } from 'react'; import storage from './localStorage'; // eslint-disable-next-line max-len export default function useLocalStorage(key: string, defaultValue: T | (() => T)) : [T, Dispatch>] { const initialState = defaultValue instanceof Function ? defaultValue() : defaultValue; const [storedValue, setStoredValue] = useState(storage.getItem(key, initialState)); const setValue = ((value: T | ((prevState: T) => T)) => { // Allow value to be a function so we have same API as useState const valueToStore = value instanceof Function ? value(storedValue) : value; setStoredValue(valueToStore); storage.setItem(key, valueToStore); }) as React.Dispatch>; return [storedValue, setValue]; }