package org.eclipse.cdt.arduino.ui.internal.remote;

import java.io.IOException;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

import org.eclipse.cdt.arduino.core.internal.board.ArduinoBoard;
import org.eclipse.cdt.arduino.core.internal.board.ArduinoManager;
import org.eclipse.cdt.arduino.ui.internal.Activator;
import org.eclipse.cdt.arduino.ui.internal.Messages;
import org.eclipse.cdt.serial.SerialPort;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;

public class NewArduinoTargetWizardPage extends WizardPage {

	String name;
	private Text nameText;

	String portName;
	private String[] portNames;
	private Combo portCombo;

	ArduinoBoard board;
	private ArduinoBoard[] boards;
	private Combo boardCombo;

	public NewArduinoTargetWizardPage() {
		super("NewArduinoTargetPage"); //$NON-NLS-1$
		setDescription(Messages.NewArduinoTargetWizardPage_0);
		setTitle(Messages.NewArduinoTargetWizardPage_1);
	}

	@Override
	public void createControl(Composite parent) {
		Composite comp = new Composite(parent, SWT.NONE);
		comp.setLayout(new GridLayout(2, false));

		Label nameLabel = new Label(comp, SWT.NONE);
		nameLabel.setText(Messages.NewArduinoTargetWizardPage_2);

		nameText = new Text(comp, SWT.BORDER | SWT.SINGLE);
		nameText.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
		nameText.setText(Messages.NewArduinoTargetWizardPage_3);
		nameText.addKeyListener(new KeyListener() {
			@Override
			public void keyReleased(KeyEvent e) {
				updateStatus();
			}

			@Override
			public void keyPressed(KeyEvent e) {
			}
		});

		Label portLabel = new Label(comp, SWT.NONE);
		portLabel.setText(Messages.NewArduinoTargetWizardPage_4);

		portCombo = new Combo(comp, SWT.READ_ONLY);
		portCombo.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
		try {
			portNames = SerialPort.list();
		} catch (IOException e) {
			portNames = new String[0];
			Activator.log(e);
		}
		for (String portName : portNames) {
			portCombo.add(portName);
		}
		portCombo.select(0);
		portCombo.addSelectionListener(new SelectionAdapter() {
			@Override
			public void widgetSelected(SelectionEvent e) {
				updateStatus();
			}
		});

		Label boardLabel = new Label(comp, SWT.NONE);
		boardLabel.setText(Messages.NewArduinoTargetWizardPage_5);

		boardCombo = new Combo(comp, SWT.READ_ONLY);
		boardCombo.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
		try {
			List<ArduinoBoard> boardList = ArduinoManager.instance.getInstalledBoards();
			Collections.sort(boardList, new Comparator<ArduinoBoard>() {
				@Override
				public int compare(ArduinoBoard o1, ArduinoBoard o2) {
					return o1.getName().compareTo(o2.getName());
				}
			});
			boards = boardList.toArray(new ArduinoBoard[0]);

			for (ArduinoBoard board : boards) {
				boardCombo.add(board.getName());
			}
			boardCombo.select(0);
		} catch (CoreException e) {
			Activator.log(e);
		}
		boardCombo.addSelectionListener(new SelectionAdapter() {
			@Override
			public void widgetSelected(SelectionEvent e) {
				updateStatus();
			}
		});

		setControl(comp);
		setPageComplete(false);
	}

	private void updateStatus() {
		name = nameText.getText();

		int portIndex = portCombo.getSelectionIndex();
		portName = portIndex < 0 ? null : portNames[portIndex];

		int boardIndex = boardCombo.getSelectionIndex();
		board = boardIndex < 0 ? null : boards[boardIndex];

		setPageComplete(!name.isEmpty() && portName != null && board != null);
	}

}