package com.didigame.acariaempire;

import java.awt.Component;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Vector;

import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JLayeredPane;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;

public class ToolbarController implements ActionListener  {

	private final int TOOLBAR_INDEX = 1;
	private final int SHEET_BEGINNING_INDEX = 2;
	
	private final int TOOLBARELT_WIDTH = 50;
	private final int TOOLBARELT_HEIGHT = 50;
	private final int TOOLBARELT_SPACE = 5;

	JLayeredPane pane;
	int toolBarIndex;
	int currentIndex;
	Map<String, JButton> iconMap;
	Map<String, SheetController> controllerMap;
	Vector<SheetPanel> displayedSheets;
	
	public ToolbarController( JLayeredPane pane )
	{
		this.pane 		= pane;
		init();
	}
	
	public void clearToolbar( ) 
	{
		//Remove icons
		for( Iterator<JButton> i = iconMap.values().iterator(); i.hasNext();)
		{
			JButton button = i.next();
			pane.remove(button);
		}
		toolBarIndex = 0;
		
		//Remove displayed sheets
		for( int i = 0; i < displayedSheets.size(); i++ )
		{
			pane.remove(displayedSheets.get(i));
		}
		
		//Update display
		pane.validate();
		
		//Reinit toolbar
		init();
	}
	
	public void addSheet( SheetController controller ) 
	{
    	String paneName = controller.getPanel().getName();
    	
    	//TODO
    	JButton button = new JButton();
    	
    	DataManager.setButtonIcons(button, controller.getPanel().getIcon() );
    	
    	button.setVerticalAlignment(JLabel.CENTER);
    	button.setHorizontalAlignment(JLabel.CENTER);
    	button.setBounds( TOOLBARELT_SPACE,
    					  TOOLBARELT_SPACE + toolBarIndex * ( 2 * TOOLBARELT_SPACE + TOOLBARELT_HEIGHT), 
    					  TOOLBARELT_WIDTH, 
    					  TOOLBARELT_HEIGHT);
        
    	//button.setMnemonic(KeyEvent.VK_D);
    	button.setActionCommand( paneName );
    	button.addActionListener(this);
        
        iconMap.put( paneName , button );
        controllerMap.put( paneName, controller);
        
        pane.add( button, TOOLBAR_INDEX);
        toolBarIndex++;
	}
	
	public void toggleSheet( String sheetName )
	{
		//Precaution
		if( ! iconMap.containsKey( sheetName ) ) return;
		if( ! controllerMap.containsKey( sheetName ) ) return;
		
		JButton button = iconMap.get( sheetName );
		SheetPanel sheet = controllerMap.get( sheetName ).getPanel();
		
		//Check if the sheet is already displayed
		if( displayedSheets.indexOf( sheet ) != -1 ) //Pane already opened --> we hide it
		{
			button.setSelected( false );
			pane.remove( sheet );
			
			displayedSheets.remove( sheet );
		}
		else // Pane not open --> We display it
		{
			button.setSelected( true );
			
			setSheet( sheet );
			
			displayedSheets.add( sheet );
			currentIndex++;
		}
		
		//Update display
		pane.validate();
		
	}
	
	
	@Override
	public void actionPerformed(ActionEvent evt) 
	{
		String iconPressedName = evt.getActionCommand();
		toggleSheet( iconPressedName );
	}
	
    private void init()
    {
		currentIndex 	= SHEET_BEGINNING_INDEX;
		iconMap 		= new HashMap<String, JButton>();
		controllerMap 	= new HashMap<String, SheetController>();
		displayedSheets = new Vector<SheetPanel>();
		toolBarIndex = 0;
    }
    
    private void setSheet( SheetPanel sheet )
    {
		// Center the element
		int sheetWidth = sheet.getWidth();
		int sheetHeight = sheet.getHeight();
		
		int widthReserved = TOOLBARELT_WIDTH + 2 * TOOLBARELT_SPACE;
		
		int windowWidth = ViewManager.getWindowsWidth();
		int windowHeight = ViewManager.getWindowsHeight();
		
		int x = widthReserved + ( windowWidth - sheetWidth ) / 2;
		int y = ( windowHeight - sheetHeight ) / 2;
		
		sheet.setBounds(x, y, sheetWidth, sheetHeight);
		
		pane.add( sheet, currentIndex );
		sheet.repaint();
		sheet.validate();
   }

}