namespace Web12306.Servers.TrainSuggestion
{
	using System;
	using Newtonsoft.Json;

	public class AlternativeLine
	{
		public AlternativeStation From { get; private set; }

		public AlternativeStation To { get; private set; }

		public string LineName { get; private set; }

		[JsonProperty("tid")]
		public string TrainId { get; set; }

		public string TrainCode { get; set; }

		TimeSpan? _elTimeSpan;

		public double ExtraPrice { get; set; }

		public char BasePriceSeat { get; set; }

		public double BasePrice { get; set; }

		public int Radio { get; set; }

		public string Date { get; set; }

		public bool IsCrossDate { get; set; }

		public TimeSpan ElapsedTime
		{
			get
			{
				if (!_elTimeSpan.HasValue)
				{
					_elTimeSpan = To.ArriveTime - From.ArriveTime;
					if (_elTimeSpan.Value.Ticks < 0)
						_elTimeSpan = _elTimeSpan.Value.Add(new TimeSpan(1, 0, 0, 0));
				}

				return _elTimeSpan.Value;
			}
		}

		/// <summary>
		/// 创建 <see cref="AlternativeLine" />  的新实例(AlternativeLine)
		/// </summary>
		/// <param name="from"></param>
		/// <param name="to"></param>
		public AlternativeLine(AlternativeStation from, AlternativeStation to, DateTime date, bool isCrossDate)
		{
			From = from;
			To = to;
			IsCrossDate = isCrossDate;
			Date = date.ToString("yyyy-MM-dd");

			LineName = From.Name + ";" + To.Name + (isCrossDate ? ";" + Date : "");
		}
	}
}