/*
 *
 * Copyright (C) 2007-2015 Licensed to the Comunes Association (CA) under
 * one or more contributor license agreements (see COPYRIGHT for details).
 * The CA licenses this file to you under the GNU Affero General Public
 * License version 3, (the "License"); you may not use this file except in
 * compliance with the License. This file is part of kune.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package cc.kune.core.client.init;

import cc.kune.common.client.notify.NotifyUser;
import cc.kune.common.client.resources.CommonResources;
import cc.kune.common.client.utils.WindowUtils;
import cc.kune.common.shared.i18n.I18n;
import cc.kune.common.shared.utils.SimpleResponseCallback;
import cc.kune.common.shared.utils.TextUtils;
import cc.kune.core.client.events.AppStartEvent;
import cc.kune.core.client.events.AppStartEvent.AppStartHandler;
import cc.kune.core.client.state.Session;
import cc.kune.core.client.state.SiteParameters;
import cc.kune.core.shared.CoreConstants;

import com.google.inject.Inject;

// TODO: Auto-generated Javadoc
/**
 * The Class WebSocketChecker.
 * 
 * @author vjrj@ourproject.org (Vicente J. Ruiz Jurado)
 */
public class WebSocketChecker {

  /**
   * This class checks if the browser supports websockets and give some advices
   * to the user.
   * 
   * This can be tested in firefox setting network.websocket.enabled;false in
   * about:config
   * 
   * @param session
   *          the session
   * @param res
   *          the resources
   */
  @Inject
  public WebSocketChecker(final Session session, final CommonResources res) {
    session.onAppStart(true, new AppStartHandler() {
      @Override
      public void onAppStart(final AppStartEvent event) {
        if (SiteParameters.checkUA() && WindowUtils.dontHasWebSocket()) {
          final String mozLink = TextUtils.generateHtmlLink(CoreConstants.MOZILLA_FF_LINK,
              "Mozilla Firefox");
          NotifyUser.askConfirmation(
              res.important32(),
              I18n.t("Your browser is currently unsupported"),
              I18n.t(
                  "Your browser version is not properly supported. Please, use a free/libre modern and updated browser like the last version of [%s] instead.",
                  mozLink)
                  + " "
                  + I18n.t("Some functionalities such as concurrent edition will then work properly. Continue anyway?"),
              new SimpleResponseCallback() {
                @Override
                public void onCancel() {
                  WindowUtils.changeHref(CoreConstants.MOZILLA_FF_LINK);
                }

                @Override
                public void onSuccess() {
                }
              });
        }
      }
    });
  }
}