using System;
using System.Collections.Generic;
using System.Xml;

namespace DMX2
{
	public class SequenceurMaitre
	{
		public class Ligne {
			public Ligne(){}
			string nom;
			TimeSpan duree = TimeSpan.Zero;
			Dictionary<Sequenceur,string> data = new Dictionary<Sequenceur, string>();
			
			public string Nom {
				get {
					return nom;
				}
				set {
					nom = value;
				}
			}

			public TimeSpan Duree {
				get {
					return duree;
				}
				set {
					duree = value;
				}
			}

			public string this [Sequenceur index] {
				get {
					string value;
					if(!data.TryGetValue(index, out value)) return string.Empty;
					return value;
				}
				set {
					if(value.Length==0) {
						if(data.ContainsKey(index)) 
							data.Remove(index);
					}
					else
						data[index] = value;
				}
			}
			public void Save (XmlElement parent)
			{
				XmlElement el = parent.OwnerDocument.CreateElement ("Ligne");
				parent.AppendChild (el);

				el.SetAttribute ("nom", nom);
				el.SetAttribute ("duree", duree.ToString ());

				XmlElement xmlSeq;
				foreach (var val in data) {
					el.AppendChild(xmlSeq=parent.OwnerDocument.CreateElement ("data"));
					xmlSeq.SetAttribute("seq",val.Key.ID.ToString());
					xmlSeq.SetAttribute("val",val.Value);
				}
			}			

			public static Ligne Load (Conduite c, XmlElement el)
			{
				Ligne l = new Ligne();
				l.nom = el.GetAttribute ("nom");
				l.duree = TimeSpan.Parse(el.GetAttribute("duree"));

				foreach (var xv in el.GetElementsByTagName("data")) {
					XmlElement xmlSeq = xv as XmlElement;
					Sequenceur seq = c.GetSeqByID(int.Parse(xmlSeq.GetAttribute("seq")));
					l[seq]= xmlSeq.GetAttribute ("val");
				}
				return l;
			}


		}

		List<Ligne> lignes = new List<Ligne>();



		public List<Ligne> Lignes {
			get {
				return lignes;
			}
		}

		public SequenceurMaitre ()
		{
			lignes.Add(new Ligne());
		}

		public void Save (XmlElement parent)
		{
			XmlElement el = parent.OwnerDocument.CreateElement("SequenceurMaitre");
			parent.AppendChild(el);

			foreach(Ligne l in lignes)
				l.Save(el);

		}


		public static SequenceurMaitre Load (Conduite c, XmlElement el)
		{
			SequenceurMaitre seq = new SequenceurMaitre ();

			foreach (var xl in el.GetElementsByTagName("Ligne")) {
				seq.Lignes.Add(Ligne.Load(c,xl as XmlElement));
			}

			return seq;
		}
	}
}