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

namespace IOTContainer.Common
{
    public static class ConvertExtension
    {
        private static DateTime dateStart = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);

        /// <summary>
        /// 获取时间戳 
        /// </summary>
        /// <param name="dateTime"></param>
        /// <returns></returns>
        public static long GetTimeStamp(this DateTime dateTime)
        {
            return (long)(dateTime.AddHours(-8) - dateStart).TotalSeconds;
        }

        /// <summary>
        /// 获取时间戳（毫秒）
        /// </summary>
        /// <param name="dateTime"></param>
        /// <returns></returns>
        public static long GetMilliTimeStamp(this DateTime dateTime)
        {
            return (long)(dateTime.AddHours(-8) - dateStart).TotalMilliseconds;
        }
        /// <summary>  
        /// 时间戳Timestamp转换成日期  
        /// </summary>  
        /// <param name="timeStamp"></param>  
        /// <returns></returns>  

        public static DateTime GetDateTime(long timeStamp)
        {
            return dateStart.AddMilliseconds(timeStamp).AddHours(+8);
        }
    }
}