using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace HouXing.BBS.Entity
{
    public static class DateTimeUtility
    {
        // 时间戳转为C#格式时间
        public static DateTime StampToDateTime(this string timeStamp)
        {
            DateTime dateTimeStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
            long lTime = long.Parse(timeStamp + "0000000");
            TimeSpan toNow = new TimeSpan(lTime);

            return dateTimeStart.Add(toNow);
        }

        // DateTime时间格式转换为Unix时间戳格式
        public static int DateTimeToStamp(this System.DateTime time)
        {
            System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));
            return (int)(time - startTime).TotalSeconds;
        }
    }
}