using System;
using System.Collections.Generic;
using System.Text;

namespace Ips.Library.Entity
{
    public class Tle
    {

        public class Enum
        {
            public enum SatClass
            {
                UNCLASSIFIED = 0, //!< int 0 unclassified satellite 
                CLASSIFIED = 1, //!< int 1 classified satellite
                SECRET = 2 //!< int 2 secret satellite
            };
        }

        public string TleName { get; set; }

        public string Line1 { get; set; }

        public string Line2 { get; set; }

        public string TleText
        {
            get
            {
                return $"{TleName};{Line1};{Line2}";
            }
        }

        private string satName; /*!<Object Name Identifier*/
        private int epochYear;  /*!< Epoch 2 digits StartYear (08)*/
        private double epochDay;  /*!< Epoch fractional portion of the Day (264.51782528)*/
        private int satNumber;  /*!< Satellite Number (25544) */

        public Tle()
        {

        }

        public Tle(string satName, int satNumber, int year, double day)
        {
            this.satName = satName;
            this.satNumber = satNumber;
            this.epochYear = year;
            this.epochDay = day;
        }

        public bool isValidData()
        {
            return true;
        }

        public string getName()
        {
            return satName;
        }

        public int getSatNumber()
        {
            return satNumber;
        }

        public DateTime getEpochTime()
        {
            int year = 0;
            if (epochYear < 57)
                year = epochYear + 2000;
            else
                year = epochYear + 1900;
            var epoch = new DateTime(year, 1, 1, 0, 0, 0, DateTimeKind.Utc).AddDays(epochDay - 1);
            return epoch.ToLocalTime();
        }
    }


}