using System;
using System.Xml;
using System.IO;
using System.Xml.XPath;
using System.Xml.Schema;
using System.Collections.Generic;
//using System;


//using System;

namespace AmicEditor
{
	public class Theme
	{
		/*
		 * Conté informació sobre un tema concret
		 * 
		 * */
		
		public string name {get; set;}
		public string description {get; set;}
		//public string folder {get; set;}
		
		//public Theme (string _name, string _desc, string _folder)
		public Theme (string _name, string _desc)
		{
			/*
			 * Constructor: Crea un tema a partir del nom, la descripció i la carpeta indicades
			 * 
			 * */
			
			this.name=_name;
			this.description=_desc;
			//this.folder=_folder;
		}
	}
	
	

	public class Themes
	{
		/*
		 * Conté la llista de temes en què es poden representar els pictogrames
		 * 
		 * */
		
 		//string dir_themes;
		public List <Theme> themes {get;set;}
		
		public List <Theme> getThemes(){
			/*
			 * Retorna la llista de temes
			 * 
			 * */
			return this.themes;
		}
		
		public Themes ()
		{
			/*
			 * Constructor: Crea la llista de temes a partir del directori corresponent
			 * */
			this.ReadThemes();
		}
		
		
		public void ReadThemes(string filename){
			/*
			 * Omple la llista de temes a partir de l'arxiu indicat en filename
			 * 
			 * */
			
			themes=new List<Theme>();
			
			string name, desc;
			
			if(XmlUtils.ValidaXSD(filename,Preferences.dir_themes+"/xsd/themes.xsd")) {
				XmlDocument xDoc = new XmlDocument();
				xDoc.Load(filename);
				
				XPathNavigator ThemeNav = xDoc.CreateNavigator();
				
				XPathNodeIterator ThemeIter = ThemeNav.Select("themes/theme");
				
				
				foreach (XPathNavigator nodeTheme in ThemeIter)
    			{
					// Llegim el nom
					XPathNodeIterator nodeTh = nodeTheme.Select("name");
					nodeTh.MoveNext();
					Console.WriteLine("		Theme Name: "+nodeTh.Current.Value);
					name=nodeTh.Current.Value;
					
					// Llegim la descripcio
					nodeTh = nodeTheme.Select("description");
					nodeTh.MoveNext();
					Console.WriteLine("		Theme Desc: "+nodeTh.Current.Value);
					desc=nodeTh.Current.Value;
					
					// Llegim el folder
					/*nodeTh = nodeTheme.Select("folder");
					nodeTh.MoveNext();
					Console.WriteLine("		Theme Folde: "+nodeTh.Current.Value);
					fol=nodeTh.Current.Value;
				*/
					//themes.Add(new Theme(name, desc, fol));
					themes.Add(new Theme(name, desc));
					
				}
				
			}

		}
		
		public void ReadThemes(){
			/*
			 * Omple la llista de temes a partir de l'arxiu indicat en dir_themes
			 * 
			 * */
			/*
			themes=new List<Theme>();
			
			
			//string name, desc, fol;
			string name, desc;
			
			if(XmlUtils.ValidaXSD(Preferences.dir_themes+"/themes.xml",Preferences.dir_themes+"/xsd/themes.xsd")) {
								
				XmlDocument xDoc = new XmlDocument();
				xDoc.Load(Preferences.dir_themes+"/themes.xml");
				
				XPathNavigator ThemeNav = xDoc.CreateNavigator();
				
				XPathNodeIterator ThemeIter = ThemeNav.Select("themes/theme");
				
				
				foreach (XPathNavigator nodeTheme in ThemeIter)
    			{
					// Llegim el nom
					XPathNodeIterator nodeTh = nodeTheme.Select("name");
					nodeTh.MoveNext();
					Console.WriteLine("		Theme Name: "+nodeTh.Current.Value);
					name=nodeTh.Current.Value;
					
					// Llegim la descripcio
					nodeTh = nodeTheme.Select("description");
					nodeTh.MoveNext();
					Console.WriteLine("		Theme Desc: "+nodeTh.Current.Value);
					desc=nodeTh.Current.Value;
					
					// Llegim el folder
					/*nodeTh = nodeTheme.Select("folder");
					nodeTh.MoveNext();
					Console.WriteLine("		Theme Folde: "+nodeTh.Current.Value);
					fol=nodeTh.Current.Value;
				*n/
					//themes.Add(new Theme(name, desc, fol));
					themes.Add(new Theme(name, desc));
					
				}
				
			}
	
		*/
		ReadThemes(Preferences.dir_themes+"/themes.xml");
		} // Fi mètode ReadThemes
			
		
		public bool Add(Theme tema){
			themes.Add(tema);
			return this.Save();
		}// Fi del mètode Add
		
		
		public bool Save(){
			/*
			 * Guarda l'arxiu xml corresponent al tema
			 * */
							
			FileStream fs=null;
			StreamWriter sw=null;
			
			try{
			
				//Console.WriteLine("Saving:"+Preferences.dir_themes+"/themes.xml");
							
				// I ara escrivim l'xml...
				// Capçalera
			
				if(File.Exists(Preferences.dir_themes+"/themes.xml"))
						File.Delete(Preferences.dir_themes+"/themes.xml");
				
				fs = new FileStream(Preferences.dir_themes+"/themes.xml", FileMode.OpenOrCreate, FileAccess.Write);
				sw=new StreamWriter(fs);
				
				sw.WriteLine("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
				sw.WriteLine("<themes xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:noNamespaceSchemaLocation=\"xsd/themes.xsd\">");
				
				foreach(Theme Tem in themes){
					sw.WriteLine("\t<theme>");
					sw.WriteLine("\t\t<name>"+Tem.name+"</name>");
					sw.WriteLine("\t\t<description>"+Tem.description+"</description>");
					sw.WriteLine("\t</theme>");
				}
					
				sw.WriteLine("</themes>");
			
			sw.Close();
			
			return true;
			}
			catch (Exception exc){
				Console.WriteLine("Excepcio escrivint: "+exc);
				if (sw!=null) sw.Close();
				return false;
			}
		}
		
		
		public bool Exists(string ThemeName){
			foreach(Theme t in themes)
				if (t.name==ThemeName) return true;
			return false;
		}	
		
	}
}