using System;
using System.Collections.Generic;
using System.IO;
using Gtk;

namespace AmicEditor
{

	public static class OOConverter
	{
	/*	public static int width;
		public static int height;
		static int border_Width;
		static int border_Height;
		static bool useBorder;
		static bool useCaption;
		static string GalName;
	*/																							
		public static int OOConvert(List<Pictogram> pictogrames, string GalName, int width, int height, 
		                            bool useBorder, int border_Width, int border_Height, bool useCaption, bool Convert2OO)
		{
			/*this.width=width;
			this.height=height;
			this.border_Width=border_Width;
			this.border_Height=border_Height;
			this.useBorder=useBorder;
			this.useCaption=useCaption;
			this.GalName=GalName;*/
			
			// Passa una llista de pictogrames a imatges SVG per exportar-les a 
			// una galeria d'OpenOffice.			
			
			// 1. Creem els svgs...
			CreateSVG(pictogrames, GalName, width, height, useBorder, border_Width, border_Height, useCaption);
			
			
			// 2. Importació a Open Office (només si Convert2OO és cert...)
			
			if(Convert2OO){
				
				// Comprovem que existisca l'arxiu conversor
				if (File.Exists("/usr/lib/openoffice/basis3.2/program/gengal")){
				
					string HomeDir=Environment.GetFolderPath(System.Environment.SpecialFolder.Personal);
				
					string path=HomeDir+"/.openoffice.org/3/user/gallery";
					string filesPath=Preferences.dir_OO+"/"+GalName;
					Console.WriteLine(path);
					
					string command="/usr/lib/openoffice/basis3.2/program/gengal";
					string args="--name "+GalName+" --path "+path+"/ "+filesPath+"/*";
					
					Console.WriteLine(command+" "+args);
					//System.Threading.ThreadStart tstart=delegate{
					//		lliurex.utils.Commands.run("/usr/lib/openoffice/basis3.2/program/gengal", args);
					 
					System.Diagnostics.Process proc = new System.Diagnostics.Process(); 
					proc.StartInfo.FileName ="bash";
					proc.StartInfo.Arguments = "-c '"+command+" "+args+"'";
					proc.StartInfo.UseShellExecute = false;
					proc.StartInfo.RedirectStandardOutput = true; 
					proc.Start(); 
					
					//Work on gallery 'file:///var/lib/lliurex-amic/ImageGallery/Custom/Gallery4OO/'");
					//	};
					//thread=new System.Threading.Thread(tstart);
					//thread.Start();			
					
					
					
					///usr/lib/openoffice/basis3.2/program$ ./gengal --name AmicOO --path /var/lib/lliurex-amic/ImageGallery/Custom/Gallery4OO/ --number-from 4321 /var/lib/lliurex-amic/ImageGallery/Custom/Gallery4OO/*
					//Work on gallery 'file:///var/lib/lliurex-amic/ImageGallery/Custom/Gallery4OO/'
					
					MessageDialog md = new MessageDialog (null, DialogFlags.DestroyWithParent,
			 	                              			MessageType.Info, ButtonsType.Close,
			     	                          			Mono.Unix.Catalog.GetString("Conversion has been done. You have a new Gallery in your OO. A new svg gallery has been created too."));
				md.Run();
				md.Destroy();
					
				} else {
					MessageDialog md = new MessageDialog (null, DialogFlags.DestroyWithParent,
			 	                              		MessageType.Error, ButtonsType.Close,
			     	                          		Mono.Unix.Catalog.GetString("Couldn't find OpenOffice 3.2 files required for the conversion (maybe installing openoffice.org-dev it will run). You can use svg gallery created."));
					md.Run();
					md.Destroy();
				}
			}// if convertOO
			else {
							
				MessageDialog md = new MessageDialog (null, DialogFlags.DestroyWithParent,
			 	                              			MessageType.Info, ButtonsType.Close,
			     	                          			Mono.Unix.Catalog.GetString("A new svg gallery has been created."));
				md.Run();
				md.Destroy();
			}
			
			return 0;
		}
		
		public static int CreateSVG(List<Pictogram> pictogrames, string GalName, int width, int height,
		                            bool useBorder, int border_Width, int border_Height, bool useCaption)
		{
			
			// Passa la llista de pictogrames a arxius SVG
			foreach (Pictogram pic in pictogrames)
			{
				// TEMA DEFAULT: // TODO
				string pictimg=pic.getImageFromTheme("Default");
				Console.WriteLine(pictimg);
				//MyImg=new Image(Preferences.dir_img+"/"+pictimg);
								
				string fileName=Preferences.dir_img+"/"+pictimg;
				string base64;
				
				FileStream fs=null;
				StreamWriter sw=null;
				
				// Grandària del svg
				//int height=300;
				//int width=300;
				//int border_Height=20;
				//int border_Width=20;
				
				
				// Apertura de l'arxiu XML				
				Directory.CreateDirectory(Preferences.dir_OO+"/"+GalName);
				//Directory.CreateDirectory("/tmp/tralari");
				string fileName2Save=pictimg.Replace("/","-");
				fileName2Save=fileName2Save.Substring(0, fileName2Save.LastIndexOf("."));
				fileName2Save=fileName2Save+".svg";
				Console.WriteLine("SAVING: "+Preferences.dir_OO+"/"+GalName+"/"+fileName2Save);
				fs = new FileStream(Preferences.dir_OO+"/"+GalName+"/"+fileName2Save, FileMode.OpenOrCreate, FileAccess.Write);
				sw=new StreamWriter(fs);
			
				// Impressió de la capçalera XML

				sw.WriteLine("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>");
				sw.WriteLine("<svg id=\""+fileName2Save+"\" " +
					"xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\" " +
					"xmlns=\"http://www.w3.org/2000/svg\" height=\""+height+"\" width=\""+width+
				             "\" version=\"1.1\" xmlns:cc=\"http://creativecommons.org/ns#\" " +
				             "xmlns:xlink=\"http://www.w3.org/1999/xlink\" " +
				             "xmlns:dc=\"http://purl.org/dc/elements/1.1/\">");
				           
				sw.WriteLine("<metadata id=\"metadata19\">");
				sw.WriteLine("<rdf:RDF>");
				sw.WriteLine("<cc:Work rdf:about=\"\">");
				sw.WriteLine("<dc:format>image/svg+xml</dc:format>");
				sw.WriteLine("<dc:type rdf:resource=\"http://purl.org/dc/dcmitype/StillImage\"/>");
				sw.WriteLine("<dc:title/>");
				sw.WriteLine("</cc:Work>");
				sw.WriteLine("</rdf:RDF>");
				sw.WriteLine("</metadata>");
  
 				// Escriptura del rectangle exterior
				// Necessitem el color de fons
				
				if(useBorder){
					string color=TransformColor(pic.background.ToString());
					sw.WriteLine("<rect id=\"background\" width=\""+width+"\" height=\""+height+"\" fill=\""+color+"\"/>");
				}
				
				
				/********************************/
				// Escriptura de la imatge (PNG!)
				/********************************/
				
				base64=ImageToBase64(fileName);
				
				int lines=(int)(base64.Length/64);
				int extra=base64.Length%64;
				
				
				// Capçalera
				if(useBorder){
					sw.WriteLine("<image x=\""+border_Height+"\" y=\""+border_Width+"\" " +
				       		"width=\""+(width-(border_Width*2))+"\" height=\""+(height-(border_Height*2))+
						//"width=\""+width-(border_Width*2)+"\" height=\""+height-(border_Height*2)+
				            		"\" xlink:href=\"data:image/png;base64,");
				} else{
					sw.WriteLine("<image x=\"0\" y=\"\" " +
				       		"width=\""+(width)+"\" height=\""+(height)+
						//"width=\""+width-(border_Width*2)+"\" height=\""+height-(border_Height*2)+
				            		"\" xlink:href=\"data:image/png;base64,");
				}
				
				// Imatge
				for(int i=0;i<lines;i++){
					string fila=base64.Substring(i*64, 64);
					sw.WriteLine(fila);
					sw.Flush();
				}
				
				sw.WriteLine(base64.Substring(lines*64, extra)+"\"/>");
				
				sw.Flush();
				
				
					
				// Escriptura del text
				
				int len=((pic.caption.Length)*int.Parse(pic.fontsize));
				
					
				if(useCaption){
					sw.WriteLine("<g id=\"CaptionGroup\" transform=\"translate("+((width/2)-len+30)+","+(height-10)+")\">");
					sw.Flush();
					sw.WriteLine("<text id=\"Caption\" y=\"0\" x=\"0\" font-size=\""+
				             	(int.Parse(pic.fontsize)*2)+"\" font-color=\""+TransformColor(pic.fontcolor.ToString())+
				             	"\" font-family=\""+pic.fontface+"\">"+pic.caption+"</text>");
					sw.Flush();
 					sw.WriteLine("</g>");
				}
				
				sw.Flush();
				// Fi de l'arxiu
				sw.WriteLine("</svg>");
				sw.Flush();
				
				sw.Close();
				
	

			}
			
			
		return 0;
		}
		
		public static string ImageToBase64(string fileName){
			// Converteix la imatges especificada en fileName en una cadena 
			// codificada en base 64, per guardar-la en arxiu xml.
			
			byte[] buff = null;
			FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read);
			BinaryReader br = new BinaryReader(fs);
			long numBytes = new FileInfo(fileName).Length;
			buff = br.ReadBytes((int)numBytes);
					
			var stream = new MemoryStream();
			stream.Write(buff, 0, (int)numBytes);
			
			//System.Drawing.Bitmap img=new System.Drawing.Bitmap(stream);
			//Console.WriteLine(Convert.ToBase64String(stream.ToArray()));
			                  
			fs.Close();
			br.Close();
			
			return Convert.ToBase64String(stream.ToArray());
			
			
			
			
			
			
		}
		
		
		public static string TransformColor(string gtkcolor){
		/*
		 * Torna un string tipus #rrggbb a partir d'un gtkcolor
		 * 
		 * */
			
			string [] color = gtkcolor.Split(new Char [] {':'});
			if (color.Length<1) return "#000000";
			else{
				string [] components=color[1].Split(new Char [] {'/'});
				if (components.Length!=3) return  "#000000";
				else{
					string r,g,b;
					if (components[0].Length>2) r=components[0].Substring(0,2);
					else r="0"+components[0].Substring(0,1);
					
					if (components[1].Length>2) g=components[1].Substring(0,2);
					else g="0"+components[1].Substring(0,1);
					
					if (components[2].Length>2) b=components[2].Substring(0,2);
					else b="0"+components[2].Substring(0,1);
					
					return "#"+r+g+b;
				}
					
			}
			
		
		}
		
		
	}
}