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import { deCrypto, enCrypto } from '../crypto'
interface StorageData<T = any> {
data: T
expire: number | null
}
export function createLocalStorage(options?: { expire?: number | null; crypto?: boolean }) {
const DEFAULT_CACHE_TIME = 60 * 60 * 24 * 7
const { expire, crypto } = Object.assign(
{
expire: DEFAULT_CACHE_TIME,
crypto: true,
},
options,
)
function set<T = any>(key: string, data: T) {
const storageData: StorageData<T> = {
data,
expire: expire !== null ? new Date().getTime() + expire * 1000 : null,
}
const json = crypto ? enCrypto(storageData) : JSON.stringify(storageData)
window.localStorage.setItem(key, json)
}
function get(key: string) {
const json = window.localStorage.getItem(key)
if (json) {
let storageData: StorageData | null = null
try {
storageData = crypto ? deCrypto(json) : JSON.parse(json)
}
catch {
// Prevent failure
}
if (storageData) {
const { data, expire } = storageData
if (expire === null || expire >= Date.now())
return data
}
remove(key)
return null
}
}
function remove(key: string) {
window.localStorage.removeItem(key)
}
function clear() {
window.localStorage.clear()
}
return {
set,
get,
remove,
clear,
}
}
export const ls = createLocalStorage()
export const ss = createLocalStorage({ expire: null, crypto: false })
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