/**
 * 设置时效缓存
 * @param {String} key 存储的key值
 * @param {String} value 存储的value值 (不填则默认为1)
 * @param {Number} time 有效时间,(单位:秒,不填则默认一天)
 */
var setStorageSyncSecond = function (key, value, time) {
 value = value ? value : 1
 wx.setStorageSync(key, value)
 var t = time ? +time : 24 * 3600
 if (t > 0) {
 var timestamp = new Date().getTime()
 timestamp = timestamp / 1000 + t
 wx.setStorageSync(key + 'dtime', timestamp + "")
 } else {
 wx.removeStorageSync(k + 'dtime')
 }
}

/**
 * 读取时效缓存
 * @param {String} key 存储的key值
 * @return {*} true为当前时间已失效、或者该值不存在,undefined默认返回则为当前时间未到失效时间
 */
var getStorageSyncTime = function (key) {
 var deadtime = +wx.getStorageSync(key + 'dtime')
 if (deadtime) {
 if (deadtime < (new Date().getTime()) / 1000) {
 wx.removeStorageSync(key)
 wx.removeStorageSync(key + 'dtime')
 return true
 }
 } else {
 return true
 }
}

module.exports = {
 setStorageSyncSecond: setStorageSyncSecond,
 getStorageSyncTime: getStorageSyncTime
}