package gui.image;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Toolkit;
import java.io.File;
import java.io.IOException;

import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.EmptyBorder;
import ftp.DownloadTask;
import gui.intro.About_GUI;
import gui.intro.MainMenue_GUI;

import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.SystemColor;
import java.awt.Font;
import javax.swing.JTextPane;
import javax.swing.JSeparator;
import models.Image;
import models.Links;
import models.SessionData;

import org.apache.thrift.TException;
import server.Server.Client;
import server.User;
import thrift.ThriftConnection;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

@SuppressWarnings("serial")
public class FTPDownloader_GUI extends JFrame implements PropertyChangeListener {

	@SuppressWarnings("unused")
	private JPanel contentPane;
	private final JPanel contentPanel = new JPanel();
	JLabel lblPath;
	JLabel downspeed;
	User user;
	JProgressBar progressBar;
	String host = SessionData.session.getServerAdress();
	int port = 21;
	String downloadFile = "";
	static String arg = "";
	DownloadTask task;
	JLabel lblBytesread;
	JLabel lblNewLabel_3;
	JLabel labelVerbleibend;
	long filesize;
	double speed;
	int progress = 0; // progress of download
	long bytesread;
	JLabel labelZeit;
	boolean taskrun = false;
	ThriftConnection con = new ThriftConnection();
	Client client = models.Client.clientcon.getClient();
	JButton btnZurck = new JButton("Zur\u00FCck");
	JButton btnDownloadStarten = new JButton("Download starten");
	JButton btnMainMenu = new JButton("Hauptmen\u00FC");


	/**
	 * Create the frame.
	 */
	public FTPDownloader_GUI() {
		addWindowListener(new WindowAdapter() {
			@Override
			public void windowClosing(WindowEvent e) {
				if (taskrun == true) {
					try {
						client.DeleteFtpUser(user.userName);
						con.closeThriftConnection();
					} catch (TException e1) {
						// TODO Auto-generated catch block
						e1.printStackTrace();
						JOptionPane.showMessageDialog(null,
								e1.getCause()+"\n"+e1.getMessage(),
								"Debug-Message", JOptionPane.ERROR_MESSAGE);
					}
					task.cancel(true);
				}
				//dispose();
				System.exit(0);
			}//end window closing
		});
		setResizable(false);
		// setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);

		try {
			UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
		} catch (ClassNotFoundException | InstantiationException
				| IllegalAccessException | UnsupportedLookAndFeelException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		setBackground(Color.WHITE);
		setTitle("Dozentenmodul *Prototyp* - Image herunterladen");
		Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
		int top = (screenSize.height - 722) / 2;
		int left = (screenSize.width - 603) / 2;
		setBounds(left, top, 603, 722);
		getContentPane().setLayout(new BorderLayout());
		contentPanel.setBackground(SystemColor.menu);
		contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5));
		getContentPane().add(contentPanel, BorderLayout.CENTER);
		contentPanel.setLayout(null);
		{
			JButton btnSpeicherortAuswhlen = new JButton(
					"Speicherort ausw\u00E4hlen");
			btnSpeicherortAuswhlen.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent arg0) {
					JFileChooser fc = new JFileChooser();
					fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);

					fc.showOpenDialog(getParent());
					File dir = fc.getSelectedFile();
					// check if directory is selected
					if (dir != null) {
						// is selected
						lblPath.setText(dir.getAbsolutePath());
					} else {
						// no directory selected
						lblPath.setText("");
					}// end if
				}
			});

			btnSpeicherortAuswhlen.setBounds(102, 124, 173, 23);
			btnSpeicherortAuswhlen.setVerticalAlignment(SwingConstants.TOP);
			contentPanel.add(btnSpeicherortAuswhlen);
		}

		lblPath = new JLabel("");
		lblPath.addPropertyChangeListener(new PropertyChangeListener() {
			public void propertyChange(PropertyChangeEvent arg0) {
				if (lblPath.getText().isEmpty()) {
					// wenn leer, dann upload button nicht freigeben
					btnDownloadStarten.setEnabled(false);
					btnDownloadStarten.setText("Bitte warten");
				} else {
					// wenn leer, dann upload button nicht freigeben
					btnDownloadStarten.setEnabled(true);
					btnDownloadStarten.setText("Download starten");
				}
			}
		});
		lblPath.setBounds(102, 158, 485, 23);
		contentPanel.add(lblPath);

		btnDownloadStarten.setEnabled(false);
		btnDownloadStarten.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				buttonDownloadActionPerformed(arg0);
			}
		});

		btnDownloadStarten.setBounds(102, 200, 173, 23);
		contentPanel.add(btnDownloadStarten);

		progressBar = new JProgressBar(0, 100);
		progressBar.setStringPainted(true);

		progressBar.setBounds(102, 234, 485, 30);
		contentPanel.add(progressBar);

		JLabel lblDownloadgeschwindigkeit = new JLabel(
				"Downloadgeschwindigkeit:");
		lblDownloadgeschwindigkeit.setBounds(102, 275, 141, 14);
		contentPanel.add(lblDownloadgeschwindigkeit);

		downspeed = new JLabel("0");
		downspeed.setBounds(374, 275, 117, 14);
		contentPanel.add(downspeed);

		JLabel lblFertig = new JLabel("Fertig:");
		lblFertig.setBounds(102, 325, 46, 14);
		contentPanel.add(lblFertig);

		lblBytesread = new JLabel("0");
		lblBytesread.setBounds(183, 325, 108, 14);
		contentPanel.add(lblBytesread);

		JLabel lblVon = new JLabel("von:");
		lblVon.setBounds(318, 325, 46, 14);
		contentPanel.add(lblVon);

		lblNewLabel_3 = new JLabel("0");
		lblNewLabel_3.setBounds(374, 325, 117, 14);
		contentPanel.add(lblNewLabel_3);

		JLabel lblMbVerbleibend = new JLabel("Verbleibend:");
		lblMbVerbleibend.setBounds(102, 350, 71, 14);
		contentPanel.add(lblMbVerbleibend);

		labelVerbleibend = new JLabel("0");
		labelVerbleibend.setBounds(183, 350, 108, 14);
		contentPanel.add(labelVerbleibend);

		JLabel lblGeschtzteVerbleibendeZeit = new JLabel(
				"Gesch\u00E4tzte Verbleibende Zeit:");
		lblGeschtzteVerbleibendeZeit.setBounds(102, 300, 150, 14);
		contentPanel.add(lblGeschtzteVerbleibendeZeit);

		labelZeit = new JLabel("0");
		labelZeit.setBounds(374, 300, 117, 14);
		contentPanel.add(labelZeit);

		JPanel panel = new JPanel();
		panel.setLayout(null);
		panel.setBackground(SystemColor.menu);
		panel.setBounds(10, 24, 577, 57);
		contentPanel.add(panel);

		JLabel lblImageDownloader = new JLabel("Image Downloader");
		lblImageDownloader.setFont(new Font("Tahoma", Font.BOLD, 18));
		lblImageDownloader.setBounds(10, 11, 509, 22);
		panel.add(lblImageDownloader);

		JTextPane txtpnWhlenSieEinen = new JTextPane();
		txtpnWhlenSieEinen.setText("W\u00E4hlen Sie einen Ort aus, um das von Ihnen gw\u00E4hlte Image erunter zu laden.");
		txtpnWhlenSieEinen.setEditable(false);
		txtpnWhlenSieEinen.setBackground(SystemColor.menu);
		txtpnWhlenSieEinen.setBounds(10, 36, 509, 32);
		panel.add(txtpnWhlenSieEinen);

		JSeparator separator = new JSeparator();
		separator.setBounds(0, 88, 597, 2);
		contentPanel.add(separator);

		JLabel label_1 = new JLabel("Hauptmen\u00FC");
		label_1.setForeground(Color.BLUE);
		label_1.setBounds(20, 92, 61, 20);
		contentPanel.add(label_1);

		JLabel label_2 = new JLabel(">");
		label_2.setBounds(80, 95, 14, 14);
		contentPanel.add(label_2);

		JLabel label_3 = new JLabel("VL-Image");
		label_3.setForeground(Color.BLUE);
		label_3.setBounds(91, 92, 46, 20);
		contentPanel.add(label_3);

		JLabel label_4 = new JLabel(">");
		label_4.setBounds(139, 95, 14, 14);
		contentPanel.add(label_4);

		JLabel label_5 = new JLabel("Neu/Bearbeiten");
		label_5.setBounds(149, 95, 108, 14);
		contentPanel.add(label_5);

		JSeparator separator_1 = new JSeparator();
		separator_1.setBounds(-10, 648, 597, 2);
		contentPanel.add(separator_1);

		JLabel lblSchritt = new JLabel("Schritt 1:");
		lblSchritt.setBounds(24, 128, 57, 14);
		contentPanel.add(lblSchritt);

		JLabel lblSchritt_1 = new JLabel("Schritt 2:");
		lblSchritt_1.setBounds(24, 204, 57, 14);
		contentPanel.add(lblSchritt_1);

		JLabel lblSchritt_3 = new JLabel("Schritt 3:");
		lblSchritt_3.setBounds(20, 423, 57, 14);
		contentPanel.add(lblSchritt_3);

		JLabel lblKlickenSieAuf = new JLabel(
				"Klicken Sie auf \"Fertigstellen\".");
		lblKlickenSieAuf.setBounds(98, 423, 241, 14);
		contentPanel.add(lblKlickenSieAuf);
		
		JMenuBar menuBar = new JMenuBar();
		menuBar.setBounds(0, 0, 597, 21);
		contentPanel.add(menuBar);
		
		JMenu menu = new JMenu("Hilfe");
		menuBar.add(menu);
		
		JMenuItem menuItem = new JMenuItem("FAQ");
		menuItem.addMouseListener(new MouseAdapter() {
			@Override
			public void mousePressed(MouseEvent arg0) {
				
				Links.openFAQ();
				
			}
		});

		menu.add(menuItem);
		
		JMenuItem menuItem_1 = new JMenuItem("OTRS");
		menuItem_1.addMouseListener(new MouseAdapter() {
			@Override
			public void mousePressed(MouseEvent arg0) {

				Links.openOTRS();

			}
		});

		menu.add(menuItem_1);
		
		JMenuItem mntmAbout = new JMenuItem("About");
		mntmAbout.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				About_GUI ab = new About_GUI();
				ab.setVisible(true);
			}
		});
		menu.add(mntmAbout);
		{
			JPanel buttonPane = new JPanel();
			buttonPane.setBackground(UIManager.getColor("Button.background"));
			buttonPane.setLayout(new FlowLayout(FlowLayout.RIGHT));
			getContentPane().add(buttonPane, BorderLayout.SOUTH);
			{
				btnZurck.addActionListener(new ActionListener() {
					public void actionPerformed(ActionEvent e) {
						if (taskrun == true) {
							task.cancel(true);
							try {
								client.DeleteFtpUser(user.userName);
							} catch (TException e1) {
								// TODO Auto-generated catch block
								e1.printStackTrace();
								JOptionPane.showMessageDialog(null,
										e1.getCause()+"\n"+e1.getMessage(),
										"Debug-Message", JOptionPane.ERROR_MESSAGE);
							}
						}
						
						SearchEditImage_GUI se = new SearchEditImage_GUI();
						se.setVisible(true);
						dispose();
					}
				});
				btnZurck.setActionCommand("Cancel");
				buttonPane.add(btnZurck);
			}
			
			
			btnMainMenu.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent arg0) {
			
					MainMenue_GUI mm = new MainMenue_GUI();
					mm.setVisible(true);
					dispose();
				}
			});
			btnMainMenu.setActionCommand("Cancel");
			buttonPane.add(btnMainMenu);
		}
		setVisible(true);

	}

	private void buttonDownloadActionPerformed(ActionEvent event) {

		progressBar.setValue(0);
		btnDownloadStarten.setEnabled(false); // verhindert schnellen zweiten
												// Klick
		btnDownloadStarten.setText("Bitte warten");
		try {
			user = client.getFtpUser();

			downloadFile = user.path+"/"+client.getPathOfImage(Image.image.getImageId(),
					Image.image.getVersion());

		} catch (TException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			JOptionPane.showMessageDialog(null,
					e.getCause()+"\n"+e.getMessage(),
					"Debug-Message", JOptionPane.ERROR_MESSAGE);
		}

		task = new DownloadTask(host, port, user.userName, user.password,
				downloadFile, lblPath.getText(), this);
		task.addPropertyChangeListener(this);
		task.execute();
		taskrun = true;

	}

	public void propertyChange(PropertyChangeEvent arg0) {

		progress = 0;
		if ("progress" == arg0.getPropertyName()) {
			progress = (Integer) arg0.getNewValue();
			progressBar.setValue(progress);
			
			// Button zum Fertigstellen freischalten, wenn 100% erreicht sind
			if (progress == 0 || progress == 100) {
				// not uploading currently
				btnZurck.setEnabled(true);
				btnMainMenu.setEnabled(true);
			} else {
				// currently uploading, don't let user interact
				btnZurck.setEnabled(false);
				btnMainMenu.setEnabled(false);
			}
		}

		if ("speed" == arg0.getPropertyName()) {
			speed = (double) arg0.getNewValue();
			// if(speed<=1){

			downspeed.setText(String.valueOf(speed).substring(0,
					String.valueOf(speed).lastIndexOf(".") + 3)
					+ " MB/s");

		}
		if ("bytesread" == arg0.getPropertyName()) {
			bytesread = (long) arg0.getNewValue();
			lblBytesread.setText((bytesread / 1024 / 1024) + " MB");
			labelVerbleibend
					.setText(((filesize / 1024 / 1024) - (bytesread / 1024 / 1024))
							+ " MB");

			labelZeit
					.setText(String
							.valueOf(
									((((filesize / 1024 / 1024) - (bytesread / 1024 / 1024)) / speed) / 60) + 1)
							.substring(
									0,
									String.valueOf(
											(((filesize / 1024 / 1024) - (bytesread / 1024 / 1024)) / speed) / 60)
											.lastIndexOf("."))
							+ " Minuten");

		}
		if ("filesize" == arg0.getPropertyName()) {
			filesize = (long) arg0.getNewValue();
			lblNewLabel_3.setText((filesize / 1024 / 1024) + " MB");

		}

	}
}