/*
* Sone - GetStatusAjaxPage.java - Copyright © 2010–2013 David Roden
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.pterodactylus.sone.web.ajax;
import static com.fasterxml.jackson.databind.node.JsonNodeFactory.instance;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import net.pterodactylus.sone.data.Post;
import net.pterodactylus.sone.data.PostReply;
import net.pterodactylus.sone.data.Sone;
import net.pterodactylus.sone.notify.ListNotificationFilters;
import net.pterodactylus.sone.template.SoneAccessor;
import net.pterodactylus.sone.web.WebInterface;
import net.pterodactylus.sone.web.page.FreenetRequest;
import net.pterodactylus.util.notify.Notification;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import com.google.common.base.Predicate;
import com.google.common.collect.Collections2;
/**
* The “get status” AJAX handler returns all information that is necessary to
* update the web interface in real-time.
*
* @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
*/
public class GetStatusAjaxPage extends JsonPage {
/** Date formatter. */
private static final DateFormat dateFormat = new SimpleDateFormat("MMM d, yyyy, HH:mm:ss");
/**
* Creates a new “get status” AJAX handler.
*
* @param webInterface
* The Sone web interface
*/
public GetStatusAjaxPage(WebInterface webInterface) {
super("getStatus.ajax", webInterface);
}
/**
* {@inheritDoc}
*/
@Override
protected JsonReturnObject createJsonObject(FreenetRequest request) {
final Sone currentSone = getCurrentSone(request.getToadletContext(), false);
/* load Sones. always return the status of the current Sone. */
Set<Sone> sones = new HashSet<Sone>(Collections.singleton(getCurrentSone(request.getToadletContext(), false)));
String loadSoneIds = request.getHttpRequest().getParam("soneIds");
if (loadSoneIds.length() > 0) {
String[] soneIds = loadSoneIds.split(",");
for (String soneId : soneIds) {
/* just add it, we skip null further down. */
sones.add(webInterface.getCore().getSone(soneId).orNull());
}
}
ArrayNode jsonSones = new ArrayNode(instance);
for (Sone sone : sones) {
if (sone == null) {
continue;
}
jsonSones.add(createJsonSone(sone));
}
/* load notifications. */
List<Notification> notifications = ListNotificationFilters.filterNotifications(webInterface.getNotifications().getNotifications(), currentSone);
Collections.sort(notifications, Notification.CREATED_TIME_SORTER);
/* load new posts. */
Collection<Post> newPosts = webInterface.getNewPosts();
if (currentSone != null) {
newPosts = Collections2.filter(newPosts, new Predicate<Post>() {
@Override
public boolean apply(Post post) {
return ListNotificationFilters.isPostVisible(currentSone, post);
}
});
}
ArrayNode jsonPosts = new ArrayNode(instance);
for (Post post : newPosts) {
ObjectNode jsonPost = new ObjectNode(instance);
jsonPost.put("id", post.getId());
jsonPost.put("sone", post.getSone().getId());
jsonPost.put("recipient", post.getRecipientId().orNull());
jsonPost.put("time", post.getTime());
jsonPosts.add(jsonPost);
}
/* load new replies. */
Collection<PostReply> newReplies = webInterface.getNewReplies();
if (currentSone != null) {
newReplies = Collections2.filter(newReplies, new Predicate<PostReply>() {
@Override
public boolean apply(PostReply reply) {
return ListNotificationFilters.isReplyVisible(currentSone, reply);
}
});
}
/* remove replies to unknown posts. */
newReplies = Collections2.filter(newReplies, PostReply.HAS_POST_FILTER);
ArrayNode jsonReplies = new ArrayNode(instance);
for (PostReply reply : newReplies) {
ObjectNode jsonReply = new ObjectNode(instance);
jsonReply.put("id", reply.getId());
jsonReply.put("sone", reply.getSone().getId());
jsonReply.put("post", reply.getPostId());
jsonReply.put("postSone", reply.getPost().get().getSone().getId());
jsonReplies.add(jsonReply);
}
return createSuccessJsonObject().put("loggedIn", currentSone != null).put("options", createJsonOptions(currentSone)).put("sones", jsonSones).put("notificationHash", notifications.hashCode()).put("newPosts", jsonPosts).put("newReplies", jsonReplies);
}
/**
* {@inheritDoc}
*/
@Override
protected boolean needsFormPassword() {
return false;
}
/**
* {@inheritDoc}
*/
@Override
protected boolean requiresLogin() {
return false;
}
//
// PRIVATE METHODS
//
/**
* Creates a JSON object from the given Sone.
*
* @param sone
* The Sone to convert to a JSON object
* @return The JSON representation of the given Sone
*/
private JsonNode createJsonSone(Sone sone) {
ObjectNode jsonSone = new ObjectNode(instance);
jsonSone.put("id", sone.getId());
jsonSone.put("name", SoneAccessor.getNiceName(sone));
jsonSone.put("local", sone.getInsertUri() != null);
jsonSone.put("status", sone.getStatus().name());
jsonSone.put("modified", webInterface.getCore().isModifiedSone(sone));
jsonSone.put("locked", webInterface.getCore().isLocked(sone));
jsonSone.put("lastUpdatedUnknown", sone.getTime() == 0);
synchronized (dateFormat) {
jsonSone.put("lastUpdated", dateFormat.format(new Date(sone.getTime())));
}
jsonSone.put("lastUpdatedText", GetTimesAjaxPage.getTime(webInterface, sone.getTime()).getText());
return jsonSone;
}
/**
* Creates a JSON object that contains all options that are currently in
* effect for the given Sone (or overall, if the given Sone is {@code null}
* ).
*
* @param currentSone
* The current Sone (may be {@code null})
* @return The current options
*/
private static JsonNode createJsonOptions(Sone currentSone) {
ObjectNode options = new ObjectNode(instance);
if (currentSone != null) {
options.put("ShowNotification/NewSones", currentSone.getOptions().getBooleanOption("ShowNotification/NewSones").get());
options.put("ShowNotification/NewPosts", currentSone.getOptions().getBooleanOption("ShowNotification/NewPosts").get());
options.put("ShowNotification/NewReplies", currentSone.getOptions().getBooleanOption("ShowNotification/NewReplies").get());
}
return options;
}
}