import java.util.ArrayList;

import java.awt.Canvas;
import java.awt.Graphics2D;
import java.awt.Dimension;
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseWheelEvent;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferStrategy;
import java.awt.geom.AffineTransform;
import java.awt.geom.Point2D;
import java.awt.geom.NoninvertibleTransformException;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JOptionPane;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.JFileChooser;
import javax.swing.JCheckBox;

import java.lang.Integer;

public class MapEditor extends MapScene {
	private Tile.Type placingTile = Tile.Type.CLEAR;
	private Actor placingActor = new Actor("", 0, false, 0);
	private ArrayList<Object> actorFields = new ArrayList<>();
	private JFrame actorFrame;
	private boolean nukeActor = false;

	public MapEditor(JFrame frame, Sub sub) {
		super(frame, sub);
		this.setLayout(new BorderLayout());

		JPanel bottomPanel = new JPanel();
		bottomPanel.setLayout(new GridLayout(1,5));

		JButton newButton = new JButton("New");
		newButton.setActionCommand("new");
		JButton tileButton = new JButton("Placing selector");
		tileButton.setActionCommand("tile");
		JButton exportButton = new JButton("Export");
		exportButton.setActionCommand("export");
		JButton importButton = new JButton("Import");
		importButton.setActionCommand("import");
		JButton actorButton = new JButton("Actors");
		actorButton.setActionCommand("actors");

		newButton.addActionListener(this);
		tileButton.addActionListener(this);
		actorButton.addActionListener(this);
		exportButton.addActionListener(this);
		importButton.addActionListener(this);

		bottomPanel.add(newButton);
		bottomPanel.add(tileButton);
		bottomPanel.add(actorButton);
		bottomPanel.add(exportButton);
		bottomPanel.add(importButton);

		this.add(bottomPanel, BorderLayout.PAGE_END);
		this.add(this.canvas, BorderLayout.CENTER);
	}

	@Override
	public void mouseClicked(MouseEvent e) {
		int tileSize = this.maxSize/10;
		Point2D p = new Point2D.Double(e.getX(), e.getY());
		try {
			p = this.tx.inverseTransform(p, null);
		} catch (NoninvertibleTransformException ex) {}
		try {
			int x = (int) p.getX()/tileSize;
			int y = (int) p.getY()/tileSize;
			this.map.getTile(x, y);
			if (this.placingTile != Tile.Type.NONE) {
				this.map.getTile(x, y).setType(this.placingTile);
			} else {
				if (!this.nukeActor) {
					Actor actor = this.placingActor;
					actor.place(x, y);
					this.map.addActor(actor);
				} else {
					Actor toNuke = this.placingActor;
					for (Actor actor : this.map.getActors()) {
						if (x == actor.getX() && y == actor.getY()) {
							toNuke = actor;
						}
					}
					this.map.removeActor(toNuke);
				}
			}
		} catch (ArrayIndexOutOfBoundsException ex) {
			System.out.println("no tile clicked");
		} catch (NullPointerException ext) {
			System.out.println("map non existent");
		}
	}

	@Override
	public void actionPerformed(ActionEvent e) {
		if ("new".equals(e.getActionCommand())) {
			JTextField size = new JTextField();

			JComponent[] inputs = new JComponent[] {
				new JLabel("Size"),
				size,
			};

			int result = JOptionPane.showConfirmDialog(null, inputs, "New map", JOptionPane.DEFAULT_OPTION);
			if (result == JOptionPane.OK_OPTION) {
				int sizeN = Integer.parseInt(size.getText());
				this.map = new Map(new Dimension(sizeN, sizeN));
			}
		} else if ("tile".equals(e.getActionCommand())) {
			String[] values = {"Clear", "Grass", "Water", "Mountain", "Actor", "Remove Actor"};

			Object result = JOptionPane.showInputDialog(null, "Tile Type", "Tile Type Selector", JOptionPane.DEFAULT_OPTION, null, values, "0");
			if (result != null) {
				String selected = result.toString();
				switch (selected) {
					case "Clear":
						this.placingTile = Tile.Type.CLEAR;
						break;
					case "Grass":
						this.placingTile = Tile.Type.GRASS;
						break;
					case "Water":
						this.placingTile = Tile.Type.WATER;
						break;
					case "Mountain":
						this.placingTile = Tile.Type.MOUNTAIN;
						break;
					case "Actor":
						this.placingTile = Tile.Type.NONE;
						this.nukeActor = false;
						break;
					case "Remove Actor":
						this.placingTile = Tile.Type.NONE;
						this.nukeActor = true;
						break;

				}
			}
		} else if ("export".equals(e.getActionCommand())) {
			JFileChooser fc = new JFileChooser();
			fc.showSaveDialog(null);

			MapLoader mapLoader = new MapLoader(fc.getSelectedFile());
			mapLoader.saveMap(this.map);
		} else if ("import".equals(e.getActionCommand())) {
			JFileChooser fc = new JFileChooser();
			fc.showOpenDialog(null);

			MapLoader mapLoader = new MapLoader(fc.getSelectedFile());
			this.map = mapLoader.getMap();
		} else if ("actors".equals(e.getActionCommand())) {
			JFrame actorFrame = new JFrame("Actors");
			actorFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
			actorFrame.setSize(new Dimension(300, 400));
			actorFrame.setLocationRelativeTo(null);

			JPanel panel = new JPanel();
			panel.setLayout(new GridLayout(5,2));

			JLabel lName = new JLabel("Name");
			JTextField name = new JTextField();
			JLabel lAgility = new JLabel("Agility");
			JTextField agility = new JTextField();
			JLabel lHp = new JLabel("max HP");
			JTextField hp = new JTextField();
			JCheckBox enemy = new JCheckBox("Enemy");
			JLabel empty = new JLabel();
			JButton ok = new JButton("Confirm");
			ok.setActionCommand("actOk");
			JButton cancel = new JButton("Cancel");
			cancel.setActionCommand("actCancel");

			ArrayList<Object> actorFields = new ArrayList<>();
			actorFields.add(name);
			actorFields.add(hp);
			actorFields.add(agility);
			actorFields.add(enemy);
			this.actorFields = actorFields;

			ok.addActionListener(this);
			cancel.addActionListener(this);

			panel.add(lName);
			panel.add(name);
			panel.add(lAgility);
			panel.add(agility);
			panel.add(lHp);
			panel.add(hp);
			panel.add(enemy);
			panel.add(empty);
			panel.add(ok);
			panel.add(cancel);

			actorFrame.add(panel);
			actorFrame.pack();
			actorFrame.setVisible(true);

			this.actorFrame = actorFrame;
		} else if ("actOk".equals(e.getActionCommand())) {
			JTextField nameField = (JTextField) this.actorFields.get(0);
			String name = nameField.getText();
			JTextField hpField = (JTextField) this.actorFields.get(1);
			int hp = Integer.parseInt(hpField.getText());
			JTextField agilityField = (JTextField) this.actorFields.get(2);
			int agility = Integer.parseInt(agilityField.getText());
			JCheckBox enemyBox = (JCheckBox) this.actorFields.get(3);
			Actor actor = new Actor(name, hp, enemyBox.isSelected(), agility);
			this.placingActor = actor;
			this.actorFrame.setVisible(false);
			this.actorFrame.dispose();
		} else if ("actCancel".equals(e.getActionCommand())) {
			this.actorFrame.setVisible(false);
			this.actorFrame.dispose();
		}

	}
}