package org.richfaces.photoalbum.social;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.LinkedList;
import java.util.List;
import javax.enterprise.context.SessionScoped;
import javax.enterprise.event.Observes;
import javax.inject.Inject;
import javax.inject.Named;
import org.richfaces.json.JSONObject;
import org.richfaces.photoalbum.manager.Model;
import org.richfaces.photoalbum.model.Event;
import org.richfaces.photoalbum.model.Image;
import org.richfaces.photoalbum.model.event.EventType;
import org.richfaces.photoalbum.model.event.Events;
import org.richfaces.photoalbum.model.event.SimpleEvent;
import org.richfaces.photoalbum.social.facebook.FacebookAlbumCache;
import org.richfaces.photoalbum.social.gplus.GooglePlusAlbumCache;
import org.richfaces.photoalbum.util.ImageHandler;
import org.richfaces.photoalbum.util.converters.ListConverter;
import com.google.common.base.Predicate;
import com.google.common.collect.Collections2;
@Named
@SessionScoped
public class EventAlbumsHelper implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
@Inject
Model model;
@Inject
GooglePlusAlbumCache gpac;
@Inject
FacebookAlbumCache fac;
private String fbAlbumIds;
private List<String> emptyFacebookIds = new LinkedList<String>();
private List<String> facebookAlbumIds = new ArrayList<String>();
private List<String> emptyGoogleIds = new LinkedList<String>();
private List<String> googleAlbumIds = new ArrayList<String>();
private List<ImageHandler> images = new ArrayList<ImageHandler>();
private boolean pollEnabled;
private boolean facebookNeedsUpdate;
private boolean googleNeedsUpdate;
/**
* Initializes the helper - checks if remote albums are loaded in their caches and prepares list of those that are not
*
* @param se - event triggered by user selecting an Event to view
*/
public void init(@Observes @EventType(Events.EVENT_DISPLAYED_EVENT) SimpleEvent se) {
images = new ArrayList<ImageHandler>();
setFacebookNeedsUpdate(false);
setGoogleNeedsUpdate(false);
Event event = model.getSelectedEvent();
// add local images into the list
for (Image i : event.getShelf().getImages()) {
images.add(new ImageHandler(i));
}
/*
* Facebook
*/
List<String> facebookIds = event.getFacebookAlbumIds();
if (facebookIds.size() != 0) {
// check if albums are loaded
emptyFacebookIds = new ArrayList<String>(Collections2.filter(facebookIds, new Predicate<String>() {
@Override
public boolean apply(String id) {
return !fac.isAlbumLoaded(id);
}
}));
facebookAlbumIds = new ArrayList<String>(Collections2.filter(facebookIds, new Predicate<String>() {
@Override
public boolean apply(String id) {
return fac.isAlbumLoaded(id);
}
}));
// set up the id
setFbAlbumIds(ListConverter.sListToString(emptyFacebookIds));
// load the loaded images
for (String lId : facebookAlbumIds) {
for (JSONObject fImage : fac.getImagesFromAlbum(lId)) {
images.add(new ImageHandler(fImage));
}
}
setFacebookNeedsUpdate(emptyFacebookIds.size() > 0);
}
/*
* Google+
*/
emptyGoogleIds = new LinkedList<String>();
googleAlbumIds = new ArrayList<String>();
googleAlbumIds = event.getGooglePlusAlbumIds();
if (googleAlbumIds.size() != 0) {
for (String fullId : googleAlbumIds) {
if (!gpac.isAlbumLoaded(fullId)) {
emptyGoogleIds.add(fullId);
} else {
for (JSONObject gImage : gpac.getImagesOfAlbum(fullId).values()) {
images.add(new ImageHandler(gImage));
}
}
}
}
setGoogleNeedsUpdate(emptyGoogleIds.size() > 0);
setPollEnabled(emptyGoogleIds.size() > 0);
}
private void addGoogleImages(String albumId) {
for (JSONObject jo : gpac.getImagesOfAlbum(albumId).values()) {
images.add(new ImageHandler(jo));
}
}
public void loadFBImages() {
for (String albumId : emptyFacebookIds) {
for (JSONObject jo : fac.getImagesFromAlbum(albumId)) {
images.add(new ImageHandler(jo));
}
}
}
public boolean isEventEmpty() {
return googleAlbumIds.size() == 0;
}
public boolean isAllLoaded() {
return emptyGoogleIds.size() == 0 && !isEventEmpty();
}
public String getNextId() {
if (emptyGoogleIds.size() == 0) {
return "0";
}
return emptyGoogleIds.get(0);
}
public void loadNext() {
String currentId = getNextId();
if (!gpac.isAlbumLoaded(currentId)) {
return;
}
addGoogleImages(currentId);
emptyGoogleIds.remove(getNextId());
setPollEnabled(emptyGoogleIds.size() != 0);
}
public boolean isPollEnabled() {
return pollEnabled;
}
public void setPollEnabled(boolean pollEnabled) {
this.pollEnabled = pollEnabled;
}
public List<ImageHandler> getImages() {
Collections.sort(images, new Comparator<ImageHandler>() {
@Override
public int compare(ImageHandler o1, ImageHandler o2) {
return o1.getName().compareTo(o2.getName());
}
});
return images;
}
public void setImages(List<ImageHandler> images) {
this.images = images;
}
public String getFbAlbumIds() {
return fbAlbumIds;
}
public void setFbAlbumIds(String fbAlbumIds) {
this.fbAlbumIds = fbAlbumIds;
}
public boolean isFacebookNeedsUpdate() {
return facebookNeedsUpdate;
}
public void setFacebookNeedsUpdate(boolean facebookNeedsUpdate) {
this.facebookNeedsUpdate = facebookNeedsUpdate;
}
public boolean isGoogleNeedsUpdate() {
return googleNeedsUpdate;
}
public void setGoogleNeedsUpdate(boolean googleNeedsUpdate) {
this.googleNeedsUpdate = googleNeedsUpdate;
}
}