package com.gpl.rpg.atcontentstudio.ui;

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

import javax.swing.ButtonGroup;
import javax.swing.ComboBoxModel;
import javax.swing.DefaultListCellRenderer;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.event.ListDataListener;

import com.gpl.rpg.atcontentstudio.ATContentStudio;
import com.gpl.rpg.atcontentstudio.model.GameDataElement.State;
import com.gpl.rpg.atcontentstudio.model.GameSource;
import com.gpl.rpg.atcontentstudio.model.Project;
import com.gpl.rpg.atcontentstudio.model.maps.TMXMap;
import com.jidesoft.swing.JideBoxLayout;

public class TMXMapCreationWizard extends JDialog {

	private static final long serialVersionUID = -474689694453543575L;
	private static final String DEFAULT_TEMPLATE = "template.tmx";
	
	
	private TMXMap creation = null;
	final File templateFile; 
	
	final JLabel message;
	final JRadioButton useTemplate, copyMap;
	final JComboBox<TMXMap> templateCombo;
	final JTextField idField;
	final JButton ok;
	final Project proj;
	
	@SuppressWarnings({ "unchecked", "rawtypes" })
	public TMXMapCreationWizard(final Project proj) {
		super(ATContentStudio.frame);
		this.proj = proj;
		templateFile=new File(proj.baseContent.gameMaps.mapFolder, DEFAULT_TEMPLATE);
		
		setTitle("Create new TMX map");
		
		JPanel pane = new JPanel();
		pane.setLayout(new JideBoxLayout(pane, JideBoxLayout.PAGE_AXIS, 6));
		
		pane.add(new JLabel("Create a new TMX map."), JideBoxLayout.FIX);
		
		message = new JLabel("Enter new map name:");
		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("");
		idField.setEditable(true);
		idPane.add(idField, BorderLayout.CENTER);
		pane.add(idPane, JideBoxLayout.FIX);

		useTemplate = new JRadioButton("Use default template file ("+DEFAULT_TEMPLATE+")");
		useTemplate.setToolTipText(templateFile.getAbsolutePath());
		pane.add(useTemplate, JideBoxLayout.FIX);
		copyMap = new JRadioButton("Copy existing map");
		pane.add(copyMap, JideBoxLayout.FIX);
		
		ButtonGroup radioGroup = new ButtonGroup();
		radioGroup.add(useTemplate);
		radioGroup.add(copyMap);
		
		final JPanel templatePane = new JPanel();
		templatePane.setLayout(new BorderLayout());
		JLabel templateLabel = new JLabel("Template to copy: ");
		templatePane.add(templateLabel, BorderLayout.WEST);
		templateCombo = new JComboBox(new TemplateComboModel());
		templateCombo.setRenderer(new TemplateComboCellRenderer());
		if (proj.getMap(DEFAULT_TEMPLATE) != null) templateCombo.setSelectedItem(proj.getMap(DEFAULT_TEMPLATE));
		templatePane.add(templateCombo, BorderLayout.CENTER);
		pane.add(templatePane, JideBoxLayout.FIX);
		pane.add(templateCombo);
		
		if (templateFile.exists()) {
			useTemplate.setSelected(true);
			copyMap.setSelected(false);
			templateCombo.setEnabled(false);
		} else {
			useTemplate.setSelected(false);
			useTemplate.setEnabled(false);
			useTemplate.setToolTipText("Cannot find file "+templateFile.getAbsolutePath());
			templateCombo.setEnabled(true);
			copyMap.setSelected(true);
		}
		
		ActionListener radioListener = new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				if (useTemplate.isSelected()) {
					templateCombo.setEnabled(false);
				} else if(copyMap.isSelected()) {
					templateCombo.setEnabled(true);
				}
				updateStatus();
			}
		};
		useTemplate.addActionListener(radioListener);
		copyMap.addActionListener(radioListener);
		
		templateCombo.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				updateStatus();
			}
		});
		
		pane.add(new JPanel(), JideBoxLayout.VARY);
		
		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) {
				
				if (copyMap.isSelected()) {
					creation = ((TMXMap)templateCombo.getSelectedItem()).clone();
				} else if (useTemplate.isSelected()) {
					creation = new TMXMap(proj.createdContent.gameMaps, templateFile);
					creation.parse();
				}
				creation.id = idField.getText();
				creation.tmxFile = new File(creation.id+".tmx");
				TMXMapCreationWizard.this.setVisible(false);
				TMXMapCreationWizard.this.dispose();
				creation.state = State.created;
				proj.createElement(creation);
				notifyCreated();
				ATContentStudio.frame.selectInTree(creation);
				ATContentStudio.frame.openEditor(creation);
			}
		});
		
		cancel.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				creation = null;
				TMXMapCreationWizard.this.setVisible(false);
				TMXMapCreationWizard.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);
		
		getContentPane().setLayout(new BorderLayout());
		getContentPane().add(pane, BorderLayout.CENTER);
		
		setMinimumSize(new Dimension(350,250));
		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 (copyMap.isSelected() && templateCombo.getSelectedItem() == null) {
			message.setText("<html><font color=\"#FF0000\">Select a map template below:</font></html>");
			trouble = true;
		} else 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 (proj.getMap(idField.getText()) != null) {
			if (proj.getMap(idField.getText()).getDataType() == GameSource.Type.created) {
				message.setText("<html><font color=\"#FF0000\">A map with the same ID was already created in this project.</font></html>");
				trouble = true;
			} else if (proj.getMap(idField.getText()).getDataType() == GameSource.Type.altered) {
				message.setText("<html><font color=\"#FF0000\">A map with the same ID exists in the game and is already altered in this project.</font></html>");
				trouble = true;
			} else if (proj.getMap(idField.getText()).getDataType() == GameSource.Type.source) {
				message.setText("<html><font color=\"#FF9000\">A map with the same ID exists in the game. The new one will be added under \"altered\".</font></html>");
			}   
		}
		
		ok.setEnabled(!trouble);
		
		message.revalidate();
		message.repaint();
	}
	
	public static interface CreationCompletedListener {
		public void mapCreated(TMXMap created);
	}
	
	private List<CreationCompletedListener> listeners = new CopyOnWriteArrayList<TMXMapCreationWizard.CreationCompletedListener>();
	
	public void addCreationListener(CreationCompletedListener l) {
		listeners.add(l);
	}
	
	public void notifyCreated() {
		for (CreationCompletedListener l : listeners) {
			l.mapCreated(creation);
		}
	}
	
	class TemplateComboModel implements ComboBoxModel<TMXMap> {
		
		Object selected;

		@Override
		public int getSize() {
			return proj.getMapCount();
		}

		@Override
		public TMXMap getElementAt(int index) {
			return proj.getMap(index);
		}

		List<ListDataListener> listeners = new CopyOnWriteArrayList<ListDataListener>();
		
		@Override
		public void addListDataListener(ListDataListener l) {
			listeners.add(l);
		}

		@Override
		public void removeListDataListener(ListDataListener l) {
			listeners.remove(l);
		}

		@Override
		public void setSelectedItem(Object anItem) {
			selected = anItem;
		}

		@Override
		public Object getSelectedItem() {
			return selected;
		}
		
	}
	
	class TemplateComboCellRenderer extends DefaultListCellRenderer {
		private static final long serialVersionUID = 5621373849299980998L;

		@Override
		public Component getListCellRendererComponent(@SuppressWarnings("rawtypes") JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
			Component c = super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
			if (c instanceof JLabel && value != null) {
				((JLabel)c).setText(((TMXMap)value).getDesc());
				((JLabel)c).setIcon(new ImageIcon(DefaultIcons.getTiledIconIcon()));
			}
			return c;
		}
	}
	

}