package org.openslx.dozmod.gui.window;

import java.awt.Color;
import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.ArrayList;
import java.util.List;

import javax.swing.JTable;
import javax.swing.RowFilter;
import javax.swing.UIManager;

import org.apache.log4j.Logger;
import org.openslx.bwlp.thrift.iface.UserInfo;
import org.openslx.dozmod.gui.Gui;
import org.openslx.dozmod.gui.helper.TextChangeListener;
import org.openslx.dozmod.gui.helper.UiFeedback;
import org.openslx.dozmod.gui.window.layout.UserListWindowLayout;
import org.openslx.dozmod.thrift.cache.UserCache;
import org.openslx.util.QuickTimer;
import org.openslx.util.QuickTimer.Task;

@SuppressWarnings("serial")
public class UserListWindow extends UserListWindowLayout implements UiFeedback {

	private final static Logger LOGGER = Logger.getLogger(UserListWindow.class);

	private final UserListWindow me = this;

	private String ownerId = null;

	public interface UserAddedCallback {
		public void userAdded(UserInfo user, UserListWindow window);
	}

	public UserListWindow(final Window modalParent, final UserAddedCallback callback, String buttonCaption) {
		super(modalParent, buttonCaption);

		addWindowListener(new WindowAdapter() {
			@Override
			public void windowOpened(WindowEvent e) {
				// load the user cache async
				QuickTimer.scheduleOnce(new Task() {
					@Override
					public void fire() {
						final List<UserInfo> cacheList = UserCache.getAll();
						final List<UserInfo> userList = new ArrayList<>(cacheList.size() - 1);
						for (UserInfo user : cacheList) {
							if (ownerId != null && user.getUserId().equals(ownerId))
								continue;

							userList.add(user);
						}

						Gui.asyncExec(new Runnable() {
							@Override
							public void run() {
								userTable.setData(userList, true);
								// Scale the window after getting the list of users.
								int calcHeight = 150 + userList.size() * 20;
								calcHeight = calcHeight > 350 ? calcHeight : 350;
								me.setPreferredSize(Gui.getScaledDimension(450,
										(calcHeight < 600) ? calcHeight : 600));
								me.pack();
								userTable.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
							}
						});
					}
				});

			}
		});

		// filter the objects in the table depending on the search field
		txtSearch.getDocument().addDocumentListener(new TextChangeListener() {
			@Override
			public void changed() {
				try {
					userTable.getRowSorter().setRowFilter(
							RowFilter.regexFilter("(?i)" + txtSearch.getText()));
					txtSearch.setForeground(UIManager.getColor("TextField.foreground"));
				} catch (IllegalArgumentException ex) {
					txtSearch.setForeground(Color.RED);
				}
			}
		});

		btnConfirm.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				final UserInfo user = userTable.getSelectedItem();
				if (user == null)
					return;
				callback.userAdded(user, me);
			}
		});

		btnCancel.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				dispose();
			}
		});

		getRootPane().setDefaultButton(btnConfirm);

		userTable.addMouseListener(new MouseAdapter() {
			@Override
			public void mouseClicked(MouseEvent e) {
				if (e.getClickCount() == 2) {
					btnConfirm.doClick();
				}
			}
		});

		Gui.centerShellOverShell(modalParent, this);
		//		this.setLocationRelativeTo(SwingUtilities.getWindowAncestor(modalParent));
	}

	/**
	 * Open a new UserListWindow
	 * 
	 * @param modalParent
	 * @param callback
	 * @param buttonCaption
	 * @param ownerId The Id of the owner of an image or lecture. Should not be
	 *            shown in the list. Can be null
	 */
	public static void open(Window modalParent, UserAddedCallback callback, String buttonCaption,
			String ownerId) {
		UserListWindow win = new UserListWindow(modalParent, callback, buttonCaption);
		win.ownerId = ownerId;
		win.setVisible(true);
	}

	@Override
	public boolean wantConfirmQuit() {
		return false;
	}

	@Override
	public void escapePressed() {
		dispose();
	}
}