using Kurisu.AspNetCore.CustomClass;

namespace Dlhis.Middle;


/// <summary>
/// 临时的扩展类  todo: 嵌入框架
/// </summary>
public static class TimePeriodExtensions
{
    public static bool IsPresent1(this TimePeriod period, DateTime dateTime)
    {
        DateTime start;
        DateTime end;

        if (period.IsCrossDay())
        {
            //period = [22:00:00,03:00:00]
            var currentStart = dateTime.Date.Add(period.Start.Value.ToTimeSpan());
            var endOfDay = dateTime.Date.AddDays(1).AddSeconds(-1);

            //assume is left range . then currentStart is 2024-04-16 22:00:00 and endOfDay is 2024-04-16 23:59:59
            if (dateTime >= currentStart && dateTime <= endOfDay)
            {
                start = currentStart; //2024-04-16 22:00:00
                end = dateTime.Date.AddDays(1).Add(period.End.Value.ToTimeSpan());//2024-04-17 03:00:00
            }
            else
            {
                start = dateTime.Date.AddDays(-1).Add(period.Start.Value.ToTimeSpan());
                end = dateTime.Date.Add(period.End.Value.ToTimeSpan());
            }
        }
        else
        {
            start = dateTime.Date.Add(period.Start.Value.ToTimeSpan());
            end = dateTime.Date.Add(period.End.Value.ToTimeSpan());
        }

        return dateTime >= start && dateTime <= end;
    }
}