import CryptoJS from 'crypto-js';

const tools = {
	data: {
		set(cacheKey, data, expireIn = 0) {
			let cacheValue = {
				content: data,
				expireIn: expireIn === 0 ? 0 : new Date().getTime() + expireIn * 1000
			}
			return localStorage.setItem(cacheKey, tools.base64.encrypt(JSON.stringify(cacheValue)))
		},
		get(cacheKey) {
			try {
				const cacheValue = JSON.parse(tools.base64.decrypt(localStorage.getItem(cacheKey)))
				if (cacheValue) {
					let nowTime = new Date().getTime()
					if (nowTime > cacheValue.expireIn && cacheValue.expireIn !== 0) {
						localStorage.removeItem(cacheKey)
						return null;
					}
					return cacheValue.content
				}
				return null
			} catch (err) {
				return null
			}
		},
		remove(cacheKey) {
			return localStorage.removeItem(cacheKey)
		},
		clear() {
			return localStorage.clear()
		}
	},
	base64: {
		encrypt(data) {
			return CryptoJS.enc.Base64.stringify(CryptoJS.enc.Utf8.parse(data))
		},
		decrypt(cipher) {
			return CryptoJS.enc.Base64.parse(cipher).toString(CryptoJS.enc.Utf8)
		}
	},
	go: async function (fn: Function) {
		try {
			let res = await fn
			return [res, null]
		} catch (err) {
			return [null, err]
		}
	}
}

export default tools