/*
 * Copyright 2005-2010 the original author or authors.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.wamblee.photos.wicket;

import java.util.List;
import java.util.logging.Logger;
import javax.inject.Inject;

import org.apache.wicket.PageParameters;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.form.TextField;
import org.apache.wicket.markup.html.link.Link;
import org.apache.wicket.markup.repeater.RepeatingView;
import org.apache.wicket.model.Model;
import org.wamblee.security.authentication.UserAdministration;
import org.wamblee.security.authentication.UserMgtException;

/**
 * Homepage
 */
public class AdminPage extends BasePage {

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

    private static final long serialVersionUID = 1L;

    @Inject
    private transient UserAdministration _userAdmin;

    private TextField _groupName;

    /**
     * Constructor that is invoked when page is invoked without a session.
     *
     * @param parameters Page parameters
     */
    public AdminPage(final PageParameters parameters) throws Exception {
        super();

        RepeatingView groupDelete = new RepeatingView("groupDelete") {
            @Override
            protected void onPopulate() {
                removeAll();
                List<String> groups = _userAdmin.getGroups();
                for (final String group : groups) {
                    WebMarkupContainer container = new WebMarkupContainer(newChildId());
                    add(container);
                    container.add(new Label("groupName", group));
                    container.add(new Link("groupDelete") {
                        @Override
                        public void onClick() {
                            try {
                                _userAdmin.removeGroup(group);
                                info("Group '" + group + "' removed");
                            }
                            catch (UserMgtException e) {
                                error("Could not remove group '" + group + "'");
                            }
                        }

                        @Override
                        public boolean isVisible() {
                            return _userAdmin.getUsers(group).isEmpty();
                        }
                    });
                }
            }
        };
        add(groupDelete);

        Form groupCreate = new Form("groupCreate") {
            @Override
            protected void onSubmit() {
                String name = _groupName.getValue();
                if (name == null || name.length() == 0) {
                    return;
                }
                try {
                    _userAdmin.createGroup(name);
                    _groupName.setModel(new Model(""));
                    info("Group '" + name + "' created");
                }
                catch (UserMgtException e) {
                    error("Group '" + name + "' could not be created");
                }
            }
        };
        add(groupCreate);
        _groupName = new TextField("groupName", new Model(""));
        groupCreate.add(_groupName);
    }

    @Override
    protected boolean isAdminPage() {
        return true;
    }
}