package net.oni2.aeinstaller.gui;

import java.awt.Desktop;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.ResourceBundle;
import java.util.TreeMap;
import java.util.TreeSet;
import java.util.Vector;

import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPopupMenu;
import javax.swing.JSplitPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.RowSorter;
import javax.swing.SortOrder;
import javax.swing.SwingUtilities;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.filechooser.FileFilter;
import javax.swing.table.TableRowSorter;

import net.oni2.aeinstaller.backend.Paths;
import net.oni2.aeinstaller.backend.Settings;
import net.oni2.aeinstaller.backend.Settings.Platform;
import net.oni2.aeinstaller.backend.SizeFormatter;
import net.oni2.aeinstaller.backend.depot.DepotCacheUpdateProgressListener;
import net.oni2.aeinstaller.backend.depot.DepotManager;
import net.oni2.aeinstaller.backend.mods.Mod;
import net.oni2.aeinstaller.backend.mods.ModManager;
import net.oni2.aeinstaller.backend.mods.Type;
import net.oni2.aeinstaller.backend.mods.download.ModDownloader;
import net.oni2.aeinstaller.backend.mods.download.ModDownloader.State;
import net.oni2.aeinstaller.backend.mods.download.ModDownloaderListener;
import net.oni2.aeinstaller.backend.oni.InstallProgressListener;
import net.oni2.aeinstaller.backend.oni.Installer;
import net.oni2.aeinstaller.backend.oni.OniSplit;
import net.oni2.aeinstaller.gui.about.AboutDialog;
import net.oni2.aeinstaller.gui.downloadwindow.Downloader;
import net.oni2.aeinstaller.gui.modtable.DownloadSizeListener;
import net.oni2.aeinstaller.gui.modtable.ModTableFilter;
import net.oni2.aeinstaller.gui.modtable.ModTableModel;
import net.oni2.aeinstaller.gui.settings.SettingsDialog;

import org.javabuilders.BuildResult;
import org.javabuilders.annotations.DoInBackground;
import org.javabuilders.event.BackgroundEvent;
import org.javabuilders.swing.SwingJavaBuilder;
import org.simplericity.macify.eawt.ApplicationEvent;
import org.simplericity.macify.eawt.ApplicationListener;

/**
 * @author Christian Illy
 */
public class MainWin extends JFrame implements ApplicationListener,
		DownloadSizeListener {
	private static final long serialVersionUID = -4027395051382659650L;

	private ResourceBundle bundle = ResourceBundle.getBundle(getClass()
			.getName());
	@SuppressWarnings("unused")
	private BuildResult result = SwingJavaBuilder.build(this, bundle);

	private JMenu mainMenu;

	private JSplitPane contents;

	private JComboBox cmbModTypes;
	private JTable tblMods;
	private ModTableModel model;
	private TableRowSorter<ModTableModel> sorter;
	private JLabel lblDownloadSizeVal;

	private JLabel lblSubmitterVal;
	private JLabel lblCreatorVal;
	private JLabel lblTypesVal;
	private JLabel lblPlatformVal;
	private JLabel lblPackageNumberVal;
	private HTMLLinkLabel lblDescriptionVal;

	private JButton btnInstall;

	private TreeSet<Mod> execUpdates = null;

	private enum EInstallResult {
		DONE,
		OFFLINE,
		INCOMPATIBLE
	};

	private EInstallResult installDone = EInstallResult.DONE;

	/**
	 * Constructor of main window.
	 */
	public MainWin() {
		this.setTitle(SwingJavaBuilder.getConfig().getResource("appname")
				+ " - v"
				+ SwingJavaBuilder.getConfig().getResource("appversion"));

		contents.setDividerLocation(400);

		if (Settings.getPlatform() == Platform.MACOS) {
			mainMenu.setVisible(false);
		}

		getRootPane().setDefaultButton(btnInstall);
		lblDownloadSizeVal.setText(SizeFormatter.format(0, 2));
	}

	private void initModTypeBox() {
		cmbModTypes.removeAllItems();

		TreeMap<String, Type> types = new TreeMap<String, Type>();
		for (Type t : ModManager.getInstance().getTypesWithContent()) {
			types.put(t.getName(), t);
		}
		for (Type t : types.values()) {
			cmbModTypes.addItem(t);
		}
		cmbModTypes.setSelectedIndex(0);
	}

	private void initTable() {
		tblMods.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
		tblMods.getSelectionModel().addListSelectionListener(
				new ListSelectionListener() {
					@Override
					public void valueChanged(ListSelectionEvent e) {
						int viewRow = tblMods.getSelectedRow();
						if (viewRow < 0) {
							modSelection(null);
						} else {
							int modelRow = tblMods
									.convertRowIndexToModel(viewRow);
							Mod mod = (Mod) model.getValueAt(modelRow, -1);
							modSelection(mod);
						}
					}
				});
		tblMods.addMouseListener(new MouseAdapter() {
			private void common(MouseEvent e) {
				int r = tblMods.rowAtPoint(e.getPoint());
				if (r >= 0 && r < tblMods.getRowCount())
					tblMods.setRowSelectionInterval(r, r);
				else
					tblMods.clearSelection();

				int rowindex = tblMods.getSelectedRow();
				if (rowindex >= 0) {
					if (e.isPopupTrigger()
							&& e.getComponent() instanceof JTable) {
						int modelRow = tblMods.convertRowIndexToModel(rowindex);
						final Mod mod = (Mod) model.getValueAt(modelRow, -1);

						if (mod.isLocalAvailable()) {
							JPopupMenu popup = new JPopupMenu();
							JMenuItem openModFolder = new JMenuItem(bundle
									.getString("openModFolder.text"));
							openModFolder
									.addActionListener(new ActionListener() {
										@Override
										public void actionPerformed(
												ActionEvent arg0) {
											try {
												Desktop.getDesktop().open(
														mod.getLocalPath());
											} catch (IOException e) {
												e.printStackTrace();
											}
										}
									});
							popup.add(openModFolder);
							popup.show(e.getComponent(), e.getX(), e.getY());
						}
					}
				}
			}

			@Override
			public void mousePressed(MouseEvent e) {
				common(e);
			}

			@Override
			public void mouseReleased(MouseEvent e) {
				common(e);
			}
		});
		// To get checkbox-cells with background of row
		((JComponent) tblMods.getDefaultRenderer(Boolean.class))
				.setOpaque(true);

		model = new ModTableModel();
		model.addDownloadSizeListener(this);

		tblMods.setModel(model);

		sorter = new TableRowSorter<ModTableModel>(model);
		tblMods.setRowSorter(sorter);

		sorter.setRowFilter(new ModTableFilter(null));

		List<RowSorter.SortKey> sortKeys = new ArrayList<RowSorter.SortKey>();
		sortKeys.add(new RowSorter.SortKey(1, SortOrder.ASCENDING));
		sorter.setSortKeys(sortKeys);

		for (int i = 0; i < model.getColumnCount(); i++) {
			model.setColumnConstraints(i, tblMods.getColumnModel().getColumn(i));
		}
	}

	private void exit() {
		dispose();
		System.exit(0);
	}

	private void saveLocalData() {
		Settings.getInstance().serializeToFile();
		DepotManager.getInstance().saveToFile(Settings.getDepotCacheFilename());
	}

	@DoInBackground(progressMessage = "updateDepot.title", cancelable = false, indeterminateProgress = false)
	private void execDepotUpdate(final BackgroundEvent evt) {
		if (!Settings.getInstance().isOfflineMode()) {
			try {
				DepotManager.getInstance().updateInformation(false,
						new DepotCacheUpdateProgressListener() {

							@Override
							public void cacheUpdateProgress(String stepName,
									int current, int total) {
								evt.setProgressEnd(total);
								evt.setProgressValue(current);
								evt.setProgressMessage(stepName);
							}
						});
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
		ModManager.getInstance().init();
		initTable();
		initModTypeBox();

		tblMods.setVisible(true);
	}

	@SuppressWarnings("unused")
	private void checkUpdates(Object evtSource) {
		if ((evtSource != this)
				|| Settings.getInstance().get("notifyupdates", true)) {
			if (Settings.getInstance().isOfflineMode()) {
				if (evtSource != this) {
					JOptionPane.showMessageDialog(this,
							bundle.getString("offlineMode.text"),
							bundle.getString("offlineMode.title"),
							JOptionPane.WARNING_MESSAGE);
				}
			} else {
				TreeSet<Mod> mods = ModManager.getInstance().getUpdatableMods();
				TreeSet<Mod> tools = ModManager.getInstance()
						.getUpdatableTools();
				int size = 0;
				String strMods = "";
				for (Mod m : mods) {
					size += m.getZipSize();
					if (strMods.length() > 0)
						strMods += "<br>";
					strMods += " - " + m.getName();
				}
				String strTools = "";
				for (Mod m : tools) {
					size += m.getZipSize();
					if (strTools.length() > 0)
						strTools += "<br>";
					strTools += " - " + m.getName();
				}
				if (size > 0) {
					String message = "<html>";
					message += String.format(
							bundle.getString("updatesAvailable.text"), strMods,
							strTools, SizeFormatter.format(size, 3));
					message += "</html>";
					int res = JOptionPane.showConfirmDialog(this, message,
							bundle.getString("updatesAvailable.title"),
							JOptionPane.YES_NO_OPTION,
							JOptionPane.QUESTION_MESSAGE);
					if (res == JOptionPane.YES_OPTION) {
						execUpdates = new TreeSet<Mod>();
						execUpdates.addAll(mods);
						execUpdates.addAll(tools);
					}
				}
			}
		}
	}

	@DoInBackground(progressMessage = "doUpdate.title", cancelable = false, indeterminateProgress = false)
	private void doUpdate(final BackgroundEvent evt) {
		if (execUpdates != null) {
			// TODO
			System.out.println("Update: " + execUpdates.toString());
			// TODO: install new tools if previously installed
		}
		execUpdates = null;
	}

	@SuppressWarnings("unused")
	private void focus() {
		SwingUtilities.invokeLater(new Runnable() {

			@Override
			public void run() {
				toFront();
				repaint();
			}
		});

	}

	private void showSettings() {
		new SettingsDialog().setVisible(true);
	}

	private void showAbout() {
		new AboutDialog().setVisible(true);
	}

	private JFileChooser getConfigOpenSaveDialog(boolean save) {
		JFileChooser fc = new JFileChooser();
		fc.setCurrentDirectory(Paths.getEditionBasePath());
		if (save)
			fc.setDialogType(JFileChooser.SAVE_DIALOG);
		else
			fc.setDialogType(JFileChooser.OPEN_DIALOG);
		fc.setFileSelectionMode(JFileChooser.FILES_ONLY);
		fc.setFileFilter(new FileFilter() {
			@Override
			public String getDescription() {
				return "XML files";
			}

			@Override
			public boolean accept(File arg0) {
				return (arg0.isDirectory())
						|| (arg0.getName().toLowerCase().endsWith(".xml"));
			}
		});
		fc.setMultiSelectionEnabled(false);
		return fc;
	}

	@SuppressWarnings("unused")
	private void loadConfig() {
		JFileChooser fc = getConfigOpenSaveDialog(false);
		int res = fc.showOpenDialog(this);
		if (res == JFileChooser.APPROVE_OPTION) {
			if (fc.getSelectedFile().exists())
				model.reloadSelection(fc.getSelectedFile());
		}
	}

	@SuppressWarnings("unused")
	private void saveConfig() {
		JFileChooser fc = getConfigOpenSaveDialog(true);
		int res = fc.showSaveDialog(this);
		if (res == JFileChooser.APPROVE_OPTION) {
			File f = fc.getSelectedFile();
			if (!f.getName().endsWith(".xml"))
				f = new File(f.getParentFile(), f.getName() + ".xml");
			ModManager.getInstance().saveModSelection(f,
					model.getSelectedMods());
		}
	}

	@DoInBackground(progressMessage = "initializingEdition.title", cancelable = false, indeterminateProgress = false)
	private void reglobalize(final BackgroundEvent evt) {
		Installer.initializeEdition(new InstallProgressListener() {
			@Override
			public void installProgressUpdate(int done, int total, String step) {
				evt.setProgressEnd(total);
				evt.setProgressValue(done);
				evt.setProgressMessage(step);
			}
		});
	}

	@SuppressWarnings("unused")
	private void tools() {
		// TODO method stub
		JOptionPane.showMessageDialog(this, "tools", "todo",
				JOptionPane.INFORMATION_MESSAGE);
	}

	@SuppressWarnings("unused")
	private void revertSelection() {
		model.revertSelection();
	}

	@DoInBackground(progressMessage = "mandatoryFiles.title", cancelable = false, indeterminateProgress = false)
	private void checkMandatoryFiles(final BackgroundEvent evt) {
		if (!Settings.getInstance().isOfflineMode()) {
			TreeSet<Mod> mand = new TreeSet<Mod>();
			for (Mod m : ModManager.getInstance().getMandatoryTools()) {
				if (m.isNewerAvailable()) {
					mand.add(m);
				}
			}
			for (Mod m : ModManager.getInstance().getMandatoryMods()) {
				if (m.isNewerAvailable()) {
					mand.add(m);
				}
			}
			if (mand.size() > 0) {
				ModDownloader m = new ModDownloader(mand,
						new ModDownloaderListener() {
							@Override
							public void updateStatus(ModDownloader source,
									State state, int filesDown, int filesTotal,
									int bytesDown, int bytesTotal,
									int duration, int remaining, int speed) {
								evt.setProgressEnd(filesTotal);
								evt.setProgressValue(filesDown);
							}
						});
				while (!m.isFinished()) {
					try {
						Thread.sleep(10);
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
				}
			}
			evt.setProgressMessage(bundle
					.getString("mandatoryToolsInstall.title"));
			Installer
					.installTools(ModManager.getInstance().getMandatoryTools());
		}
	}

	@DoInBackground(progressMessage = "installing.title", cancelable = false, indeterminateProgress = false)
	private void install(final BackgroundEvent evt) {
		TreeSet<Mod> mods = new TreeSet<Mod>();
		mods.addAll(ModManager.getInstance().getMandatoryMods());
		mods.addAll(model.getSelectedMods());

		boolean instReady = false;
		installDone = EInstallResult.DONE;

		while (!instReady) {
			TreeSet<Mod> toDownload = new TreeSet<Mod>();
			for (Mod m : mods) {
				if (!m.isLocalAvailable())
					toDownload.add(m);
			}
			if (Settings.getInstance().isOfflineMode()) {
				installDone = EInstallResult.OFFLINE;
				break;
			}
			if (toDownload.size() > 0) {
				Downloader dl = new Downloader(toDownload);
				try {
					dl.setVisible(true);
					if (!dl.isFinished())
						break;
				} finally {
					dl.dispose();
				}
			}
			HashMap<Mod, HashSet<Mod>> dependencies = ModManager.getInstance()
					.checkDependencies(mods);
			if (dependencies.size() > 0) {
				System.out.println("Unmet dependencies: "
						+ dependencies.toString());
				for (Mod m : dependencies.keySet()) {
					for (Mod mDep : dependencies.get(m))
						mods.add(mDep);
				}
			} else {
				HashMap<Mod, HashSet<Mod>> conflicts = ModManager.getInstance()
						.checkIncompabitilites(mods);
				if (conflicts.size() > 0) {
					installDone = EInstallResult.INCOMPATIBLE;
					System.err.println("Incompatible mods: "
							+ conflicts.toString());
					break;
				} else {
					instReady = true;
				}
			}
		}

		if (instReady) {
			Installer.install(mods, new InstallProgressListener() {
				@Override
				public void installProgressUpdate(int done, int total,
						String step) {
					evt.setProgressEnd(total);
					evt.setProgressValue(done);
					evt.setProgressMessage(step);
				}
			});
			installDone = EInstallResult.DONE;
		}
	}

	@SuppressWarnings("unused")
	private void installDone() {
		switch (installDone) {
			case DONE:
				JOptionPane.showMessageDialog(this,
						bundle.getString("installDone.text"),
						bundle.getString("installDone.title"),
						JOptionPane.INFORMATION_MESSAGE);
				break;
			case OFFLINE:
				JOptionPane.showMessageDialog(this,
						bundle.getString("offlineMode.text"),
						bundle.getString("offlineMode.title"),
						JOptionPane.WARNING_MESSAGE);
				break;
			case INCOMPATIBLE:
				break;
		}
	}

	private void modSelection(Mod m) {
		lblSubmitterVal.setText("");
		lblCreatorVal.setText("");
		lblDescriptionVal.setText("");
		lblTypesVal.setText("");
		lblPlatformVal.setText("");
		lblPackageNumberVal.setText("");
		if (m != null) {
			lblSubmitterVal.setText(m.getName());
			lblCreatorVal.setText(m.getCreator());
			lblDescriptionVal.setText(m.getDescription());

			String types = "";
			for (Type t : m.getTypes()) {
				if (types.length() > 0)
					types += ", ";
				types += t.getName();
			}
			lblTypesVal.setText(types);
			lblPlatformVal.setText(m.getPlatform().toString());
			lblPackageNumberVal.setText(m.getPackageNumberString());
		}
	}

	@SuppressWarnings("unused")
	private void modTypeSelection() {
		Type t = (Type) cmbModTypes.getSelectedItem();
		if (t != null)
			sorter.setRowFilter(new ModTableFilter(t));
		else
			sorter.setRowFilter(new ModTableFilter(null));
	}

	@Override
	public void downloadSizeChanged(int newSize) {
		lblDownloadSizeVal.setText(SizeFormatter.format(newSize, 2));
	}

	@SuppressWarnings("unused")
	private void checkInitialize() {
		if (!Installer.isEditionInitialized()) {
			if (!OniSplit.isOniSplitInstalled()) {
				JOptionPane.showMessageDialog(this,
						bundle.getString("noOniSplit.text"),
						bundle.getString("noOniSplit.title"),
						JOptionPane.ERROR_MESSAGE);
				exit();
			} else {
				int res = JOptionPane
						.showConfirmDialog(this,
								bundle.getString("askInitialize.text"),
								bundle.getString("askInitialize.title"),
								JOptionPane.YES_NO_OPTION,
								JOptionPane.QUESTION_MESSAGE);
				if (res == JOptionPane.NO_OPTION) {
					saveLocalData();
					exit();
				}
			}
		}
	}

	@DoInBackground(progressMessage = "initializingEdition.title", cancelable = false, indeterminateProgress = false)
	private void initialize(final BackgroundEvent evt) {
		if (!Installer.isEditionInitialized()) {
			Installer.initializeEdition(new InstallProgressListener() {
				@Override
				public void installProgressUpdate(int done, int total,
						String step) {
					evt.setProgressEnd(total);
					evt.setProgressValue(done);
					evt.setProgressMessage(step);
				}
			});
		}
	}

	private Vector<String> getBasicOniLaunchParams() {
		Vector<String> params = new Vector<String>();
		File exe = null;
		switch (Settings.getPlatform()) {
			case WIN:
				exe = new File(Paths.getEditionBasePath(), "Oni.exe");
				if (exe.exists())
					params.add(exe.getPath());
				break;
			case MACOS:
				exe = new File(Paths.getEditionBasePath(),
						"Oni.app/Contents/MacOS/Oni");
				if (exe.exists())
					params.add(exe.getPath());
				break;
			case LINUX:
				String wine = Settings.getWinePath();
				exe = new File(Paths.getEditionBasePath(), "Oni.exe");
				if (exe.exists()) {
					if (wine != null) {
						params.add(wine);
						params.add(exe.getPath());
					}
				}
				break;
			default:
		}
		if (params.size() > 0) {
			params.add("-debugfiles");
		}
		return params;
	}

	@SuppressWarnings("unused")
	private void oniFull() {
		Vector<String> params = getBasicOniLaunchParams();
		if (params.size() > 0) {
			try {
				ProcessBuilder pb = new ProcessBuilder(params);
				pb.directory(Paths.getEditionBasePath());
				pb.start();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}

	@SuppressWarnings("unused")
	private void oniWin() {
		Vector<String> params = getBasicOniLaunchParams();
		if (params.size() > 0) {
			params.add("-noswitch");
			try {
				ProcessBuilder pb = new ProcessBuilder(params);
				pb.directory(Paths.getEditionBasePath());
				pb.start();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}

	@SuppressWarnings("unused")
	private void openEditionFolder() {
		try {
			Desktop.getDesktop().open(Paths.getEditionBasePath());
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	@Override
	public void handleAbout(ApplicationEvent event) {
		event.setHandled(true);
		showAbout();
	}

	@Override
	public void handleOpenApplication(ApplicationEvent event) {
	}

	@Override
	public void handleOpenFile(ApplicationEvent event) {
	}

	@Override
	public void handlePreferences(ApplicationEvent event) {
		showSettings();
	}

	@Override
	public void handlePrintFile(ApplicationEvent event) {
	}

	@Override
	public void handleQuit(ApplicationEvent event) {
		event.setHandled(true);
		saveLocalData();
		exit();
	}

	@Override
	public void handleReOpenApplication(ApplicationEvent event) {
	}

}