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();

		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);

	}

	*/

}