/*
 * Copyright (c) 2010-2011 Lockheed Martin Corporation
 *
 * 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.eurekastreams.web.client.ui.pages.master;

import org.eurekastreams.server.domain.Page;
import org.eurekastreams.web.client.history.CreateUrlRequest;
import org.eurekastreams.web.client.jsni.WidgetJSNIFacadeImpl;
import org.eurekastreams.web.client.ui.Session;
import org.eurekastreams.web.client.ui.common.stream.renderers.ResourceCountWidget.CountType;
import org.eurekastreams.web.client.ui.pages.widget.ActorListWidget;
import org.eurekastreams.web.client.ui.pages.widget.CommentWidget;
import org.eurekastreams.web.client.ui.pages.widget.FullStreamWidget;
import org.eurekastreams.web.client.ui.pages.widget.LikeShareWidget;
import org.eurekastreams.web.client.ui.pages.widget.ReadStreamWidget;
import org.eurekastreams.web.client.ui.pages.widget.ShareActivityWidget;
import org.eurekastreams.web.client.ui.pages.widget.ShareWidget;
import org.eurekastreams.web.client.ui.pages.widget.UserProfileBadgeWidget;

import com.google.gwt.user.client.History;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Widget;

/**
 * Creates a page given a page and view.
 */
public class ConnectPageFactory
{
    /**
     * Creates a widget and sets the history to match it.
     *
     * @param widgetName
     *            Name of widget desired.
     * @param util
     *            For getting URL parameters.
     * @return The widget (or null).
     */
    public Widget createPageWithHistory(final String widgetName, final WidgetJSNIFacadeImpl util)
    {
        if ("comment".equals(widgetName))
        {
            String resourceUrl = util.getParameter("resourceurl");
            String resourceTitle = util.getParameter("resourcetitle");
            String siteUrl = util.getParameter("siteurl");
            String siteTitle = util.getParameter("sitetitle");
            setHistory(new CreateUrlRequest(Page.WIDGET_COMMENT, "resource"));
            return new CommentWidget(resourceUrl, resourceUrl, resourceTitle, siteUrl, siteTitle);
        }
        else if ("readstream".equals(widgetName))
        {
            String request = util.getParameter("request");
            setHistory(new CreateUrlRequest(Page.WIDGET_READ_STREAM, "request"));
            return new ReadStreamWidget(request);
        }
        else if ("fullstream".equals(widgetName))
        {
            String request = util.getParameter("request");
            setHistory(new CreateUrlRequest(Page.WIDGET_FULL_STREAM, "request"));
            return new FullStreamWidget(request);
        }
        else if ("badge".equals(widgetName))
        {
            String accountId = util.getParameter("accountid");
            return new UserProfileBadgeWidget(accountId);
        }
        else if ("likeshare".equals(widgetName))
        {
            String resourceId = util.getParameter("resourceurl");
            String title = util.getParameter("title");
            String desc = util.getParameter("desc");
            String[] thumbs = util.getParameter("thumbs").split(",");
            return new LikeShareWidget(resourceId, title, desc, thumbs);
        }
        else if ("sharedialog".equals(widgetName))
        {
            String resourceId = util.getParameter("resourceurl");
            String title = util.getParameter("title");
            String desc = util.getParameter("desc");
            String thumbStr = util.getParameter("thumbs");
            String[] thumbs = null;
            if (!thumbStr.isEmpty())
            {
                thumbs = thumbStr.split(",");
            }
            return new ShareWidget(resourceId, title, desc, thumbs);
        }
        else if ("actordialog".equals(widgetName))
        {
            String resourceId = util.getParameter("resourceurl");
            String countTypeStr = util.getParameter("actortype");
            CountType countType = "likes".equals(countTypeStr) ? CountType.LIKES : CountType.SHARES;

            return new ActorListWidget(countType, resourceId);
        }
        else if ("shareactivitydialog".equals(widgetName))
        {
            String title = util.getParameter("title");
            Window.setTitle(title == null ? "Share" : title);
            try
            {
                Long activityId = Long.parseLong(util.getParameter("activityid"));
                return new ShareActivityWidget(activityId);
            }
            catch (Exception ex)
            {
                // TODO: better error handling
                return null;
            }
        }

        return null;
    }

    /**
     * Sets URL and triggers history.
     *
     * @param request
     *            Description of URL to build.
     */
    private void setHistory(final CreateUrlRequest request)
    {
        String token = Session.getInstance().generateUrl(request);
        History.newItem(token, true);
    }
}