package org.ximtec.igesture.tool.view.devicemanager.wizard;
   
   import java.awt.BorderLayout;
   import java.awt.Color;
   import java.awt.event.ActionEvent;
   import java.awt.event.ActionListener;
   import java.util.ArrayList;
   import java.util.HashSet;
   import java.util.Map;
  import java.util.Set;
  
  import javax.swing.BorderFactory;
  import javax.swing.ButtonGroup;
  import javax.swing.DefaultListModel;
  import javax.swing.JCheckBox;
  import javax.swing.JComponent;
  import javax.swing.JList;
  import javax.swing.JPanel;
  import javax.swing.JRadioButton;
  import javax.swing.JScrollPane;
  import javax.swing.ListSelectionModel;
  import javax.swing.event.ListSelectionEvent;
  import javax.swing.event.ListSelectionListener;
  
  import org.netbeans.spi.wizard.Summary;
  import org.netbeans.spi.wizard.WizardController;
  import org.netbeans.spi.wizard.WizardException;
  import org.netbeans.spi.wizard.WizardPanelProvider;
  import org.ximtec.igesture.Recogniser;
  import org.ximtec.igesture.algorithm.Algorithm;
  import org.ximtec.igesture.algorithm.AlgorithmException;
  import org.ximtec.igesture.configuration.Configuration;
  import org.ximtec.igesture.core.GestureSet;
  import org.ximtec.igesture.io.AbstractGestureDevice;
  import org.ximtec.igesture.io.DeviceDiscoveryService;
  import org.ximtec.igesture.tool.view.devicemanager.DeviceManagerController;
  
  /**
   * GUI and logic implementation of the wizard. It extends {@link org.netbeans.spi.wizard.WizardPanelProvider}.
   * @author Bjorn Puype, bpuype@gmail.com
   *
   */
  public class AddDeviceWizardProvider extends WizardPanelProvider {
  
  	private int selectedIndexDevice = 0;
  	private DeviceManagerController manager;
  	private final Map<String, DeviceDiscoveryService> discoveryMapping;
  
  	protected AddDeviceWizardProvider(DeviceManagerController manager)
  	{
  		super("Add Device ...", new String[]{"connection", "device", "user"/*, "recogniser"*/}, new String[]{
  				"Choose a connection type",
  				"Choose a device to connect",
  				"Associate the device with a user"/*,
  				"Associate a recogniser"*/
  		});
  		this.manager = manager;
  		discoveryMapping = manager.getDiscoveryMapping();
  	}
  	
  	@Override
  	protected JComponent createPanel(final WizardController controller, String id, final Map settings) {
  		
  		if("connection".equals(id))// STEP 1
  		{
  			String problem = "You must select a connection type";
  			controller.setProblem(problem);	
  			return createRadioButtonsPanel(discoveryMapping.keySet(), "connection", problem, controller, settings);
  		}
  		else if("device".equals(id)) // STEP 2
  		{
  			controller.setProblem("Choose a device to connect");
  			
  			// get the discovery service based on the user's choice in the previous step
  			String key = (String) settings.get("connection");
  			DeviceDiscoveryService service = discoveryMapping.get(key);
  			// discover devices
  			Set<AbstractGestureDevice<?,?>> devices = service.discover();
  			
  			final Object[] discoveredDevices = devices.toArray(); 
  			                           
  			//add the devices to a list
  			JPanel panel = new JPanel();
  			panel.setLayout(new BorderLayout());
  			JList list = new JList(discoveredDevices);
  			list.setName("device");
  			list.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
  			JScrollPane scroll = new JScrollPane(list);
  			panel.add(scroll, BorderLayout.CENTER);
  			
  			//cleanup the service
  			service.dispose();
  			
  			//listen to the selection of the user
  			list.addListSelectionListener(new ListSelectionListener(){
  
  				@Override
  				public void valueChanged(ListSelectionEvent e) {
  					
 					if(!e.getValueIsAdjusting())
 					{
 						//change to a different index
 						if(!(e.getFirstIndex() == selectedIndexDevice))
 							selectedIndexDevice = e.getFirstIndex();
 						else
 							selectedIndexDevice = e.getLastIndex();
 						controller.setProblem(null);
 						
 						settings.put("device", discoveredDevices[selectedIndexDevice]);
 						
 					}
 				}
 				
 			});
 			
 			return panel;
 		}
 		else //if("user".equals(id)) // STEP 3
 		{
 			controller.setProblem("Associate the device with a user");
 			
 			// get the users and add them to the list
 			JPanel panel = new JPanel();
 			panel.setLayout(new BorderLayout());
 			final JList list = new JList(manager.getUsers().toArray());
 			list.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION);
 			JScrollPane scroll = new JScrollPane(list);
 			panel.add(scroll, BorderLayout.CENTER);
 			
 			// listen to the selection of the user
 			list.addListSelectionListener(new ListSelectionListener(){
 
 				@Override
 				public void valueChanged(ListSelectionEvent e) {
 					
 					if(!e.getValueIsAdjusting())
 					{
 						controller.setProblem(null);
 						Object result = list.getSelectedValue();
 						settings.put("user", result);
 					}
 				}
 				
 			});
 			
 			return panel;
 
 		}/*
 		else //if("choice".equals("id")) // STEP 4 (BRANCH)
 		{
 			String problem = "You must select a recogniser type";
 			controller.setProblem(problem);
 			Set<String> names = new HashSet<String>();
 			names.add("Existing Recogniser");
 			names.add("New Recogniser");
 			return createRadioButtonsPanel(names, "recogniser", problem, controller, settings);
 		}*/
 	}
 	
 	private JPanel createRadioButtonsPanel(Set<String> names, final String key, final String problem, final WizardController controller, final Map settings)
 	{	
 		JPanel panel = new JPanel();
 		ButtonGroup group = new ButtonGroup();
 		final ArrayList<JRadioButton> radioButtons = new ArrayList<JRadioButton>();
 		
 		for(String name : names)
 		{
 			JRadioButton rdb = new JRadioButton();
 			rdb.setText(name);
 			rdb.setName(name);
 			rdb.setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
 			group.add(rdb);
 			panel.add(rdb);
 			radioButtons.add(rdb);
 		}
 		
 		//actionlistener for the radiobuttons
 		ActionListener l = new ActionListener(){
 			
 			@Override
 			public void actionPerformed(ActionEvent e) {
 				
 				boolean isSelected = false;
 				JRadioButton choice = null;
 				for(JRadioButton btn : radioButtons)
 				{
 					if(btn.isSelected())
 					{
 						isSelected = true;
 						choice = btn;
 						break;
 					}
 				}
 				if(!isSelected)//no next if nothing selected
 				{
 					controller.setProblem(problem);
 				}
 				else
 				{
 					controller.setProblem(null);
 					//save the users choice
 					settings.put(key, choice.getText());
 				}
 			}
 			
 		};
 		
 		for(JRadioButton rdb : radioButtons)
 		{
 			rdb.addActionListener(l);
 		}
 		
 		return panel;
 
 	}
 	
 
 	@Override
 	public Object finish(Map wizardData) throws WizardException {
 		
 		//summary
 		String[] items = new String[wizardData.size()];
 		items[0] = "Connection:\t" + wizardData.get("connection");
 		items[1] = "Device:\t" + wizardData.get("device");
 		items[2] = "User:\t" + wizardData.get("user");
 		
 		//result
 		ArrayList<Object> result = new ArrayList<Object>();
 		result.add(wizardData.get("device"));
 		result.add(wizardData.get("user"));
 		
 		return Summary.create(items,result);
 	}
 }