using System;

namespace WZ
{
    public class TimeUtils
    {
        #region 本地时间
        public static long CurrentTimestamp()
        {
            return DateTimeOffset.UtcNow.ToUnixTimeSeconds();
        }
        // 获取当前本地时间的毫秒级时间戳
        public static long GetLocalTimestamp()
        {
            DateTime origin = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Local);
            TimeSpan diff = GetNowDateTime() - origin;
            return (long)diff.TotalMilliseconds;
        }
    
        public static DateTime TimestampToLocalDateTime(long timestamp)
        {
            // 以UTC时间为基准计算（避免时区转换问题）
            DateTime origin = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Local);
            DateTime utcDateTime = origin.AddMilliseconds(timestamp);
        
            // 转换为本地时间
            return utcDateTime.ToLocalTime();
        }

        public static DateTime GetNowDateTime()
        {
            return DateTime.Now;
        }

        #endregion
    }
}