package com.gpl.rpg.atcontentstudio.ui;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;

import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;

import com.gpl.rpg.atcontentstudio.ATContentStudio;
import com.gpl.rpg.atcontentstudio.model.maps.WorldmapSegment;
import com.jidesoft.swing.JideBoxLayout;

public class WorldmapLabelEditionWizard extends JDialog {

	private static final long serialVersionUID = 4911946705579386332L;

	final JLabel message;
	final JTextField idField;
	final JTextField labelField;
	final JTextField typeField;
	final JButton ok;
	final WorldmapSegment segment;
	final WorldmapSegment.NamedArea label;
	
	boolean createMode = false;
	
	public WorldmapLabelEditionWizard(WorldmapSegment segment) {
		this(segment, new WorldmapSegment.NamedArea(null, null, null), true);
	}
	
	public WorldmapLabelEditionWizard(WorldmapSegment segment, WorldmapSegment.NamedArea label) {
		this(segment, label, false);
	}
	
	public WorldmapLabelEditionWizard(WorldmapSegment segment, WorldmapSegment.NamedArea namedArea, boolean createMode) {
		super(ATContentStudio.frame);
		this.createMode = createMode;
		this.segment = segment;
		this.label = namedArea;
		
		setTitle(createMode ? "Create Worldmap Label" : "Edit Worldmap Label");
		
		JPanel pane = new JPanel();
		pane.setLayout(new JideBoxLayout(pane, JideBoxLayout.PAGE_AXIS, 6));
		
		pane.add(new JLabel(createMode ? "Create a worldmap label." : "Edit a worldmap label."), JideBoxLayout.FIX);
		
		message = new JLabel("Enter a label ID below: ");
		pane.add(message, JideBoxLayout.FIX);
		
		final JPanel idPane = new JPanel();
		idPane.setLayout(new BorderLayout());
		JLabel idLabel = new JLabel("Internal ID: ");
		idPane.add(idLabel, BorderLayout.WEST);
		idField = new JTextField(label.id);
		idField.setEditable(true);
		idPane.add(idField, BorderLayout.CENTER);
		pane.add(idPane, JideBoxLayout.FIX);

		final JPanel labelPane = new JPanel();
		labelPane.setLayout(new BorderLayout());
		JLabel labelLabel = new JLabel("Label: ");
		labelPane.add(labelLabel, BorderLayout.WEST);
		labelField = new JTextField(label.name);
		labelField.setEditable(true);
		labelPane.add(labelField, BorderLayout.CENTER);
		pane.add(labelPane, JideBoxLayout.FIX);

		final JPanel typePane = new JPanel();
		typePane.setLayout(new BorderLayout());
		JLabel typeLabel = new JLabel("Type: ");
		typePane.add(typeLabel, BorderLayout.WEST);
		typeField = new JTextField(label.type);
		if (typeField.getText().equals("")) {
			typeField.setText("settlement");
		}
		typeField.setEditable(true);
		typePane.add(typeField, BorderLayout.CENTER);
		pane.add(typePane, JideBoxLayout.FIX);
		
		JPanel buttonPane = new JPanel();
		buttonPane.setLayout(new JideBoxLayout(buttonPane, JideBoxLayout.LINE_AXIS, 6));
		buttonPane.add(new JPanel(), JideBoxLayout.VARY);
		JButton cancel = new JButton("Cancel");
		buttonPane.add(cancel, JideBoxLayout.FIX);
		ok = new JButton("Ok");
		buttonPane.add(ok, JideBoxLayout.FIX);
		pane.add(new JPanel(), JideBoxLayout.VARY);
		pane.add(buttonPane, JideBoxLayout.FIX);
		
		ok.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				label.id = idField.getText();
				label.name = labelField.getText();
				label.type = labelField.getText();
				WorldmapLabelEditionWizard.this.setVisible(false);
				WorldmapLabelEditionWizard.this.dispose();
				if (WorldmapLabelEditionWizard.this.createMode) {
					WorldmapLabelEditionWizard.this.segment.labels.put(label.id, label);
				}
				notifyCreated();
			}
		});
		
		cancel.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				WorldmapLabelEditionWizard.this.setVisible(false);
				WorldmapLabelEditionWizard.this.dispose();
			}
		});
		
		DocumentListener statusUpdater = new DocumentListener() {
			@Override
			public void removeUpdate(DocumentEvent e) {
				updateStatus();
			}
			@Override
			public void insertUpdate(DocumentEvent e) {
				updateStatus();
			}
			@Override
			public void changedUpdate(DocumentEvent e) {
				updateStatus();
			}
		};
		idField.getDocument().addDocumentListener(statusUpdater);
		labelField.getDocument().addDocumentListener(statusUpdater);
		typeField.getDocument().addDocumentListener(statusUpdater);
		
		getContentPane().setLayout(new BorderLayout());
		getContentPane().add(pane, BorderLayout.CENTER);
		
		setMinimumSize(new Dimension(350,170));
		updateStatus();
		pack();
		
		Dimension sdim = Toolkit.getDefaultToolkit().getScreenSize();
		Dimension wdim = getSize();
		setLocation((sdim.width - wdim.width)/2, (sdim.height - wdim.height)/2);
	}
	
	public void updateStatus() {
		boolean trouble = false;
		message.setText("<html><font color=\"#00AA00\">Looks OK to me.</font></html>");
		if (idField.getText() == null || idField.getText().length() <= 0) {
			message.setText("<html><font color=\"#FF0000\">Internal ID must not be empty.</font></html>");
			trouble = true;
		} else if (segment.labels.get(idField.getText()) != null && segment.labels.get(idField.getText()) != label) {
			message.setText("<html><font color=\"#FF0000\">A worldmap label with the same ID already exists in this worldmap.</font></html>");
			trouble = true;
		} else if (labelField.getText() == null || labelField.getText().length() <= 0) {
			message.setText("<html><font color=\"#FF0000\">Label must not be empty.</font></html>");
			trouble = true;
		}
//		message.setText("<html><font color=\"#FF9000\">This is a Warning example</font></html>");

		ok.setEnabled(!trouble);
		
		message.revalidate();
		message.repaint();
	}
	
	public static interface CreationCompletedListener {
		public void labelCreated(WorldmapSegment.NamedArea created);
	}
	
	private List<CreationCompletedListener> listeners = new CopyOnWriteArrayList<WorldmapLabelEditionWizard.CreationCompletedListener>();
	
	public void addCreationListener(CreationCompletedListener l) {
		listeners.add(l);
	}
	
	public void notifyCreated() {
		for (CreationCompletedListener l : listeners) {
			l.labelCreated(label);
		}
	}
}