package horaris;

import javax.microedition.lcdui.*;
import java.util.Hashtable;
import java.util.Vector;

import ogdl.*;

public class MainList implements CommandListener, Ekrano
{
	private Graph list;
	private List mylist;
	private Command cmd_eliri;
	private Command cmd_about;
	private Main main;
	private Hashtable table;

	public MainList(Main _main)
	{
		main = _main;
		loadList();
	}

	public void show()
	{
		mylist = new List("Horaris", List.IMPLICIT);

		/* Show the Titles (they're also in the hashtable) */
		for (int i=0; i < list.size(); i++)
			mylist.append(list.get(i).get(0).getName(), null);

		cmd_eliri = new Command("Sortir", Command.BACK, 0);
		cmd_about = new Command("Programa", Command.HELP, 0);

		mylist.addCommand(cmd_eliri);
		mylist.addCommand(cmd_about);
		mylist.setCommandListener(this);
		System.err.println("Setting screen");
		main.display.setCurrent(mylist);
	}

	private void loadList()
	{
		/* Open file */
		String res = "/data/list.g";
		list = new Graph("Root");
		File2Graph.load(res, list, main);

		table = new Hashtable();

		/* Hashtable "Title" - "filename" */
		for (int i=0; i < list.size(); i++)
			table.put(list.get(i).get(0).getName(),
				list.get(i).getName());
	}

	public void commandAction(Command c, Displayable d)
	{
		if (c == cmd_eliri)
		{
			System.out.println("Exit");
			main.quit();
		} else if (c == List.SELECT_COMMAND)
		{
			String dosiero;

			dosiero = (String) table.get(mylist.getString(mylist.getSelectedIndex()));
			System.err.println("Loading file " + dosiero);

			loadHoraro(dosiero);
		} else if (c == cmd_about)
		{
			Vector str = new Vector();
			str.addElement("Programa \"Horaris\"");
			str.addElement("Llicència GPL 1.2");
			str.addElement("Autor: Lluís Batlle i Rossell");
			ShowText st = new ShowText(str, this);
		}
	}

	private void loadHoraro(String dosiero)
	{
		Graph horaro = new Graph("RootHoraro");;
		File2Graph.load("/data/"+dosiero, horaro, main);

		int speco = Horaroj.distingi(horaro);
		
		/* if (speco == Horaroj.CXEESTA)
		{
			newCxeesta(horaro);
		} else */ if (speco == Horaroj.TRANSPORTA);
		{
			try {
				newTransporta(horaro);
			} catch (Exception e)
			{
				System.err.println("No es pot carregar" +
						" l'horari " + dosiero);
			}
		}
	}

	private void newTransporta(Graph g) throws Exception
	{
		HoraroTransporta horaro = new HoraroTransporta(g, this);
	}

	/*
	private void newCxeesta(Graph g)
	{
		HoraroCxeesta horaro = new HoraroCxeesta(g, main);
	}
	*/
}