using System;

using Innovative.SolarCalculator;

using System.Linq;

using System.Collections.Generic;

using Innovative.Geometry;

public class Program

{

    public static bool isSunsetPast(){return true;}

    public static Tuple<DateTime, DateTime> ShabesTimesCalcuate(Angle ang)

        {

            DateTime knisa;

            DateTime yezia;

            TimeSpan offset = new TimeSpan(TimeZoneInfo.ConvertTimeBySystemTimeZoneId(DateTimeOffset.UtcNow, "Israel Standard Time").Offset.Ticks);

            DateTimeOffset localDate = new DateTimeOffset(DateTime.Today.Ticks, offset);

            DateTimeOffset today = (localDate.DayOfWeek == DayOfWeek.Saturday && !isSunsetPast()) ? localDate.AddDays(-1) : localDate;

            SolarTimes shabesSolar = new SolarTimes(today, 32.109333, 34.855499);

​

            DateTimeOffset nextFriday = Enumerable.Range(0, 7)

           .Select(i => today.AddDays(i))

           .Single(day => day.DayOfWeek == DayOfWeek.Friday);

​

            shabesSolar.ForDate = nextFriday;

            knisa = RoundTimes(shabesSolar.Sunset.AddMinutes(-21));

​

            localDate = new DateTimeOffset(shabesSolar.Sunset, offset);

            shabesSolar.ForDate = localDate;

            yezia = AngleTime(ang, shabesSolar);

​

​

            return new Tuple<DateTime, DateTime>(knisa, yezia);

​

        }

        public static DateTime RoundTimes(DateTime time)

        {

            return time.AddSeconds((60 - time.Second));

        }

        public static DateTime AngleTime(Angle angle, SolarTimes sunDetails)

        {

​

            DateTimeOffset zman = new DateTimeOffset(sunDetails.ForDate.Ticks, sunDetails.ForDate.Offset);

            if (sunDetails.SolarElevation < (double)-3)

            {

                while (sunDetails.SolarElevation <= angle)

                {

                    zman = zman.AddMinutes(1);

                    sunDetails.ForDate = zman;

                }

            }

            else

            {

                while (sunDetails.SolarElevation >= angle)

                {

                    zman = zman.AddMinutes(1);

                    sunDetails.ForDate = zman;

                }

            }

            return new DateTime(zman.Ticks);

        }

    public static void Main()

    {

            TimeSpan offset = new TimeSpan(TimeZoneInfo.ConvertTimeBySystemTimeZoneId(DateTimeOffset.UtcNow, "Israel Standard Time").Offset.Ticks);

            DateTimeOffset localDate = new DateTimeOffset(DateTime.Today.Ticks, offset);

            //DateTimeOffset localDate = new DateTimeOffset(new DateTime(2022,12,22).Ticks, offset);

            //SolarTimes sunSolar = new SolarTimes(localDate, 31.771959, 35.217018); // jerusallem

            SolarTimes sunSolar = new SolarTimes(localDate.AddDays(0), 32.109333, 34.855499); // tlv

            DateTime sunrise = sunSolar.Sunrise;

            DateTime sunset = sunSolar.Sunset;

​

            TimeSpan difference = sunset.Subtract(sunrise);

            double differenceInMin = difference.TotalMinutes;

            TimeSpan TempHour = TimeSpan.FromMinutes(((differenceInMin) / 12));

            TimeSpan TempMin = TimeSpan.FromMinutes(TempHour.TotalMinutes / 60);

            DateTime start = sunrise.Add(-72*TempMin);

            DateTime end = sunset.Add(72*TempMin);

            TimeSpan newDifference = end.Subtract(start);

            double newDifferenceInMin = newDifference.TotalMinutes;

            TimeSpan newTempHour = TimeSpan.FromMinutes(((newDifferenceInMin) / 12));

            TimeSpan newTempMin = TimeSpan.FromMinutes(TempHour.TotalMinutes / 60);

            //DateTime newRise = AngleTime(0.0, sunSolar);

            DateTime alotHashar = sunrise.Add(-72*TempMin);

            DateTime talitAndTfilin = sunrise.Add(-66*TempMin);

            DateTime sofZmanKriatShmaMagenAvraham = alotHashar.Add(3*newTempHour);

            DateTime sofZmanKriatShmaHagra = sunrise.Add(3*TempHour);

            DateTime sofZmanTfilaMagenAvraham = alotHashar.Add(4*newTempHour);

            DateTime sofZmanTfilaHagra = sunrise.Add(4*TempHour);

            DateTime hazot = sunrise.AddHours(6 * TempHour.TotalHours);

            DateTime minhaGedola = hazot.AddMinutes(30);

            DateTime minhaKetana = sunrise.Add(9.5*TempHour);

            DateTime plagHamincha = sunset.Add(-1.025*TempHour);

            DateTime knisa = ShabesTimesCalcuate(0.0).Item1;

            DateTime yezia = ShabesTimesCalcuate(-8.5).Item2;

            Console.WriteLine("Temp H:"  + TempHour);

            /*Console.WriteLine(alotHashar);

            Console.WriteLine(talitAndTfilin);*/

            Console.WriteLine("sunrise: " + sunrise);

            /*Console.WriteLine(sofZmanKriatShmaMagenAvraham);

            Console.WriteLine(sofZmanKriatShmaHagra);

            Console.WriteLine(sofZmanTfilaMagenAvraham);

            Console.WriteLine(sofZmanTfilaHagra);

            Console.WriteLine(hazot);

            Console.WriteLine(minhaGedola);

            Console.WriteLine(minhaKetana);

            Console.WriteLine(plagHamincha);*/

            Console.WriteLine("sunset: " + sunset);

            Console.WriteLine("shabes times \nknisa: " + knisa.ToString("HH:mm:ss") + "\n" + "yezia: " + yezia.ToString("HH:mm:ss"));

​

            /*

            var a = sunSolar.DawnAstronomical;

            var b = sunSolar.DawnNautical;

            var c = sunSolar.DuskAstronomical;

            var d = sunSolar.DuskNautical;

            var e = sunSolar.HourAngleDawnAstronomical;

            var f = sunSolar.HourAngleDawnCivil;

            var g = sunSolar.HourAngleDawnNautical;

            var h = sunSolar.HourAngleDegrees;

            var i = sunSolar.HourAngleSunrise;

        Console.WriteLine("----------------------");

        Console.WriteLine(sunSolar2.SolarElevation.ToString());

            Console.WriteLine(a);

        Console.WriteLine(b);

        Console.WriteLine(c);

        Console.WriteLine(d);

        Console.WriteLine(e.ToString() + "   time in this angle is " + AngleTime(e, sunSolar));

        Console.WriteLine(f.ToString() + "   time in this angle is " + AngleTime(f, sunSolar));

        Console.WriteLine(g.ToString() + "   time in this angle is " + AngleTime(g, sunSolar));

        Console.WriteLine(h.ToString());

        Console.WriteLine(i.ToString());

        Console.WriteLine(i.ToString());*/

    }

}