const NameSpace = 'ihealth-kit-registration_';

function getData<T>(key: string, defaultValue?: T): T | null {
	const rawData = window.localStorage.getItem(NameSpace + key);
	try {
		if (rawData) {
			return JSON.parse(rawData);
		} else {
			return defaultValue || null
		}
	} catch (e) {
		return defaultValue || null;
	}
}

function setData<T>(key: string, data: T): void {
	window.localStorage.setItem(NameSpace + key, JSON.stringify(data));
}

function clearData(key?: string): void {
	if (key) {
		window.localStorage.removeItem(NameSpace + key);
	} else {
		window.localStorage.clear()
	}
}

const storage = {
	get: getData,
	set: setData,
	clear: clearData
}
export default storage