/*******************************************************************************
 *     SDR Trunk 
 *     Copyright (C) 2014-2016 Dennis Sheirer
 * 
 *     This program is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 * 
 *     This program is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 * 
 *     You should have received a copy of the GNU General Public License
 *     along with this program.  If not, see <http://www.gnu.org/licenses/>
 ******************************************************************************/
package controller.channel;

import gui.editor.Editor;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Collections;
import java.util.List;

import javax.swing.ComboBoxModel;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import net.miginfocom.swing.MigLayout;
import alias.AliasModel;

public class NameConfigurationEditor extends Editor<Channel> implements DocumentListener
{
	private static final long serialVersionUID = 1L;

	private final static Logger mLog = LoggerFactory.getLogger( NameConfigurationEditor.class );

	private static ComboBoxModel<String> EMPTY_MODEL = new DefaultComboBoxModel<>();

	private AliasModel mAliasModel;
	private ChannelModel mChannelModel;
	
	private JTextField mChannelName;
	private JComboBox<String> mSystemNameCombo;
	private JComboBox<String> mSiteNameCombo;
	private JComboBox<String> mAliasListCombo;
	
	public NameConfigurationEditor( AliasModel aliasModel, ChannelModel model )
	{
		mAliasModel = aliasModel;
		mChannelModel = model;

		init();
	}
	
	private void init()
	{
		setLayout( new MigLayout( "fill,wrap 4", "[right][grow,fill][right][grow,fill]", "[][][grow]" ) );

		mChannelName = new JTextField( "" );
		mChannelName.getDocument().addDocumentListener( this );
		mChannelName.setEnabled( false );

		add( new JLabel( "Name:" ) );
		add( mChannelName );

		mSystemNameCombo = new JComboBox<>( EMPTY_MODEL );
		mSystemNameCombo.setEnabled( false );
		mSystemNameCombo.setEditable( true );
		mSystemNameCombo.addActionListener( new ActionListener()
		{
			@Override
			public void actionPerformed( ActionEvent e )
			{
				Object selected = mSystemNameCombo.getSelectedItem();
				
				if( selected != null )
				{
					String system = (String)selected;
					
					List<String> sites = mChannelModel.getSites( system );

					if( !sites.contains( getItem().getSite() ) )
					{
						sites.add( getItem().getSite() );
					}
					
					if( sites.isEmpty() )
					{
						mSiteNameCombo.setModel( EMPTY_MODEL );
					}
					else
					{
						mSiteNameCombo.setModel( new DefaultComboBoxModel<String>( 
								sites.toArray( new String[ sites.size() ] ) ) );;
					}
							
					mSiteNameCombo.setSelectedItem( getItem().getSite() );
				}
				
				setModified( true );
			}
		} );
		
		add( new JLabel( "System:" ) );
		add( mSystemNameCombo );

		mAliasListCombo = new JComboBox<String>();
		mAliasListCombo.setEnabled( false );
		mAliasListCombo.setEditable( true );
		mAliasListCombo.addActionListener( new ActionListener()
		{
			@Override
			public void actionPerformed( ActionEvent e )
			{
				setModified( true );
			}
		} );
		
		add( new JLabel( "Alias List:" ) );
		add( mAliasListCombo );
		
		mSiteNameCombo = new JComboBox<>( EMPTY_MODEL );
		mSiteNameCombo.setEnabled( false );
		mSiteNameCombo.setEditable( true );
		mSiteNameCombo.addActionListener( new ActionListener()
		{
			@Override
			public void actionPerformed( ActionEvent e )
			{
				setModified( true );
			}
		} );
		
		add( new JLabel( "Site:" ) );
		add( mSiteNameCombo );
	}
	
	@Override
	public void save()
	{
		if( hasItem() && isModified() )
		{
			getItem().setName( mChannelName.getText() );
			
			Object system = mSystemNameCombo.getSelectedItem();
			getItem().setSystem( ( system == null ? null : (String)system ) );

			Object site = mSiteNameCombo.getSelectedItem();
			getItem().setSite( ( site == null ? null : (String)site ) );

			Object aliasList = mAliasListCombo.getSelectedItem();
			getItem().setAliasListName( aliasList == null ? null : (String)aliasList );
		}
		
		setModified( false );
	}

	private void setControlsEnabled( boolean enabled )
	{
		if( mChannelName.isEnabled() != enabled )
		{
			mChannelName.setEnabled( enabled );
		}

		if( mAliasListCombo.isEnabled() != enabled )
		{
			mAliasListCombo.setEnabled( enabled );
		}

		if( mSystemNameCombo.isEnabled() != enabled )
		{
			mSystemNameCombo.setEnabled( enabled );
		}
		
		if( mSiteNameCombo.isEnabled() != enabled )
		{
			mSiteNameCombo.setEnabled( enabled );
		}
	}

	@Override
	public void setItem( Channel channel )
	{
		super.setItem( channel );
		
		if( hasItem() )
		{
			setControlsEnabled( true );
			
			mChannelName.setText( channel.getName() );

			List<String> systems = mChannelModel.getSystems();
			
			if( systems.isEmpty() )
			{
				mSystemNameCombo.setModel( EMPTY_MODEL );
			}
			else
			{
				mSystemNameCombo.setModel( new DefaultComboBoxModel<String>( 
						systems.toArray( new String[ systems.size() ] ) ) );;
			}
			
			mSystemNameCombo.setSelectedItem( channel.getSystem() );

			List<String> sites = mChannelModel.getSites( channel.getSystem() );

			if( sites.isEmpty() )
			{
				mSiteNameCombo.setModel( EMPTY_MODEL );
			}
			else
			{
				mSiteNameCombo.setModel( new DefaultComboBoxModel<String>( 
						sites.toArray( new String[ sites.size() ] ) ) );;
			}

			if( channel.getSite() != null )
			{
				mSiteNameCombo.setSelectedItem( channel.getSite() );
			}
			
			List<String> lists = mAliasModel.getListNames();
			Collections.sort( lists );
			mAliasListCombo.setModel( new DefaultComboBoxModel<String>( 
					lists.toArray( new String[ lists.size() ] ) ) );
			
			if( channel.getAliasListName() != null )
			{
		   		mAliasListCombo.setSelectedItem( channel.getAliasListName() );
			}
		}
		else
		{
			setControlsEnabled( false );
			mChannelName.setText( null );
		}
		
		setModified( false );
	}

	@Override
	public void insertUpdate( DocumentEvent e )
	{
		setModified( true );
	}

	@Override
	public void changedUpdate( DocumentEvent e )
	{
		setModified( true );
	}
	
	@Override
	public void removeUpdate( DocumentEvent e ) 
	{
		setModified( true );
	}
}