/**
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* 短信倒计时锁
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*/
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class SmsLock {
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// 发送倒计时默认60秒
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time = null
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// 计时器
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timer = null
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// 倒计时默认60秒
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lockTime = 60
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// 锁标记名称
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lockName = ''
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/**
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* 实例化构造方法
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*
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* @param {String} purpose 唯一标识
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* @param {Number} time
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*/
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constructor(purpose, lockTime = 60) {
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this.lockTime = lockTime
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this.lockName = `SMSLOCK_${purpose}`
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this.init()
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}
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// 开始计时
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start(time = null) {
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this.time = time == null || time >= this.lockTime ? this.lockTime : time
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this.clearInterval()
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this.timer = setInterval(() => {
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if (this.time == 0) {
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this.clearInterval()
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this.time = null
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localStorage.removeItem(this.lockName)
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return
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}
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this.time--
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// 设置本地缓存
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localStorage.setItem(this.lockName, this.getTime() + this.time)
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}, 1000)
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}
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// 页面刷新初始化
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init() {
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let result = localStorage.getItem(this.lockName)
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if (result == null) return
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let time = result - this.getTime()
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if (time > 0) {
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this.start(time)
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} else {
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localStorage.removeItem(this.lockName)
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}
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}
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// 获取当前时间
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getTime() {
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return Math.floor(new Date().getTime() / 1000)
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}
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// 清除计时器
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clearInterval() {
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clearInterval(this.timer)
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}
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}
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export default SmsLock
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