/*
 * Created on 12.08.2004
 *
 * @author Jens Guenther
 */
package de.unirostock.Builder.example.gui;


import javax.swing.JPanel;

import de.unirostock.Builder.example.Shipyard;

public class MainController 
{

	// ------------------------------------------------------------------- //
	// ---- private classes ---------------------------------------------- //
	// ------------------------------------------------------------------- //
	
	private class MainControllerState extends State	{

		protected MainController itsController;

		protected	JPanel						itsPanel;
	}
	
	private class ChooseShipyardState extends MainControllerState
	{
		public ChooseShipyardState( MainController controller ){
			itsController	= controller;
		}
		
		public void entry()
		{
			// set formerly choosed ShipFactory to null
			itsController.setShipyard( null );
			// init HeadPane
			itsController.setHeadline( "Auswahl des Builders" );
			// init ChooseFactoryPanel
			if( itsPanel == null ){
				itsPanel	= new ChooseBuilderPanel();
			}
			itsController.setContentPanel( itsPanel );
			// init ButtonPane  
			itsController.setOkState( itsController.getCreatePartsState());
		}
	
		public void exit()
		{
			// set ShipFactory to selected ShipFactory
			Shipyard	selShipyard	= ((ChooseBuilderPanel)itsPanel).getSelectedShipyard();
			itsController.setShipyard( selShipyard );
		}
	}
	
	private class CreatePartsState extends MainControllerState
	{
		public CreatePartsState( MainController controller ){
			itsController	= controller;
		}
		
		public void entry()
		{
			// init HeadPane
			itsController.setHeadline( "Teile mittels Director erzeugen" );
			// init ViewComponentPane
			if( itsPanel == null ){
				itsPanel	= new CreatePartsPanel();
			}
			itsController.setContentPanel( itsPanel );
			((CreatePartsPanel)itsPanel).init( itsController.getSelectedShipyard());
			// init ButtonPane  
			itsController.setOkState( itsController.getGetShipState());
		}
	}
	
	private class GetShipState extends MainControllerState
	{
		public GetShipState( MainController controller ){
			itsController	= controller;
		}
		
		public void entry()
		{
			// init HeadPane
			itsController.setHeadline( "Produkt vom (bekannten) Builder holen" );
			// init AssembledShipPane
			if( itsPanel == null ){
				itsPanel	= new GetShipPanel();
			}
			itsController.setContentPanel( itsPanel );
			((GetShipPanel)itsPanel).init( itsController.getSelectedShipyard());
			// init ButtonPane  
			itsController.setOkState( itsController.getChooseShipyardState());
		}
	}

	// ------------------------------------------------------------------- //
	// ---- attributes --------------------------------------------------- //
	// ------------------------------------------------------------------- //
	
	private State itsChooseShipyardState = null;
	private State itsCreatePartsState = null;
	private State itsGetShipState = null;
	
	private MainPanel itsMainPanel;

	private Shipyard itsShipyard;

	private State itsState = null;

				
	// ------------------------------------------------------------------- //
	// ---- constructor -------------------------------------------------- //
	// ------------------------------------------------------------------- //
	
	public MainController( MainPanel view )
	{
		itsMainPanel	= view;
	}
	
	// ------------------------------------------------------------------- //
	// ---- state management --------------------------------------------- //
	// ------------------------------------------------------------------- //
	
	public void init()
	{
		MainHeadPanel		mhp	= new MainHeadPanel();
		MainButtonPanel		mbp	= new MainButtonPanel( this );
		
		itsMainPanel.setHeadPanel( mhp );
		itsMainPanel.setButtonPanel( mbp );
		
		setState( getChooseShipyardState());
	}

	protected void setState(State state) {
		if (itsState != null)
			itsState.exit();

		itsState = state;

		if (itsState != null)
			itsState.entry();

		itsMainPanel.repaint();
	}

	private State getChooseShipyardState() {
		if (itsChooseShipyardState == null) {
			itsChooseShipyardState = new ChooseShipyardState(this);
		}
		return itsChooseShipyardState;
	}

	private State getCreatePartsState() {
		if (itsCreatePartsState == null) {
			itsCreatePartsState = new CreatePartsState(this);
		}
		return itsCreatePartsState;
	}

	private State getGetShipState() {
		if (itsGetShipState == null) {
			itsGetShipState = new GetShipState(this);
		}
		return itsGetShipState;
	}

	// ------------------------------------------------------------------- //
	// ---- data model --------------------------------------------------- //
	// ------------------------------------------------------------------- //
	
	protected MainPanel getMainPanel() {
		return itsMainPanel;
	}

	protected void setShipyard(Shipyard shipyard) {
		itsShipyard = shipyard;
	}

	public Shipyard getSelectedShipyard(){
		return itsShipyard;
	}
	
	protected void setHeadline( String headline ){
		itsMainPanel.getMainHeadPanel().setHeadline( headline );
	}
	
	protected void setOkState( State okState ){
		itsMainPanel.getMainButtonPanel().setOkState( okState );
	}
	
	protected void setContentPanel( JPanel contentPanel ){
		itsMainPanel.setContentPanel( contentPanel );
	}
	
}