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

namespace DSWeb.Common
{
    /// <summary>
    /// long数据拓展
    /// </summary>
    public static class LongExtension
    {

        /// <summary>
        /// 将毫秒时间戳转换为普通时间
        /// </summary>
        /// <param name="timestamp">毫秒级别的时间戳</param>
        /// <returns></returns>
        public static DateTime ToDateTimeMilliseconds(this long timestamp)
        {
            System.DateTime time = System.DateTime.MinValue;
            DateTime startTime = new DateTime(1970, 1, 1, 0, 0, 0);
            time = startTime.AddMilliseconds(timestamp).Add(TimeZoneInfo.Local.BaseUtcOffset);
            return time;
        }
        /// <summary>
        ///  将秒级别时间戳转换为普通时间
        /// </summary>
        /// <param name="timestamp">秒级别的时间戳</param>
        /// <returns></returns>
        public static DateTime ToDateTimeSecoders(this long timestamp)
        {
            DateTime time = System.DateTime.MinValue;

            DateTime startTime = new DateTime(1970, 1, 1, 0, 0, 0);
            time = startTime.AddSeconds(timestamp).Add(TimeZoneInfo.Local.BaseUtcOffset);
            return time;
        }
        /// <summary>
        /// 讲标准时间戳(秒级)转换为时间格式
        /// </summary>
        /// <param name="timestamp"></param>
        /// <returns></returns>

        public static DateTime ToDataTime(this long timestamp)
        {
            return ToDateTimeSecoders(timestamp);
        }
    }
}