static double ToTimestamp(this DateTime dt, UnixTimestampType unixTimestampType)
{
var timeDiff = new TimeSpan(dt.ToUniversalTime().Ticks - Constants.UnixEpochTicks);
var total = unixTimestampType switch
{
UnixTimestampType.Milliseconds => timeDiff.TotalMilliseconds,
UnixTimestampType.Seconds => timeDiff.TotalSeconds,
_ => throw new ArgumentOutOfRangeException(nameof(unixTimestampType), unixTimestampType, null),
};
return((double)Math.Floor(total));
}
static long GetTicks(long timestamp, UnixTimestampType unixTimestampType)
{
long ticks;
switch (unixTimestampType)
{
case UnixTimestampType.Milliseconds:
if (timestamp > Constants.TimestampMillisecondsMaxValue)
{
timestamp = Constants.TimestampMillisecondsMaxValue;
}
ticks = Constants.UnixEpochTicks + TimeSpan.FromMilliseconds(timestamp).Ticks;
break;
case UnixTimestampType.Seconds:
ticks = Constants.UnixEpochTicks + TimeSpan.FromSeconds(timestamp).Ticks;
break;
default:
throw new ArgumentOutOfRangeException(nameof(unixTimestampType), unixTimestampType, null);
}
return(ticks);
}
/// <summary>
/// 将 Unix时间戳根据 <see cref="UnixTimestampType"/> 转换为 <see cref="DateTimeOffset"/>
/// </summary>
/// <param name="timestamp"></param>
/// <param name="type"></param>
/// <param name="convertLocalTime"></param>
/// <returns></returns>
public static DateTimeOffset ToDateTimeOffset(this long timestamp, UnixTimestampType type = UnixTimestampType.Milliseconds, bool convertLocalTime = true)
{
var ticks = GetTicks(timestamp, type);
return(GetDateTimeOffset(ticks, convertLocalTime));
}
