PublicationNotification.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2016 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * 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 org.turro.publication.util;
 
import java.io.File;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.stream.Collectors;
import org.apache.commons.mail.EmailException;
import org.turro.action.Actions;
import org.turro.action.Contacts;
import org.turro.action.IAgreements;
import org.turro.action.MailAttachment;
import org.turro.action.Plugins;
import org.turro.action.queue.ConstraintKeys;
import org.turro.action.queue.NotificationCategory;
import org.turro.action.queue.Notifications;
import org.turro.action.queue.QueuePeriod;
import org.turro.elephant.context.ElephantContext;
import org.turro.elephant.context.IConstructor;
import org.turro.elephant.entities.db.QueueOptions;
import org.turro.elephant.impl.repository.Repository;
import org.turro.elephant.security.IUser;
import org.turro.file.util.FileAttach;
import org.turro.jpa.entity.EntityWebUrls;
import org.turro.mail.message.MailMessageTemplate;
import org.turro.mail.pool.MailMessagePool;
import org.turro.mail.provider.MailProviders;
import org.turro.mail.queue.QueueManager;
import org.turro.mail.queue.QueuedSender;
import org.turro.marker.ElephantMarker;
import org.turro.plugin.contacts.IContact;
import org.turro.publication.db.PublicationPU;
import org.turro.publication.entity.Publication;
import org.turro.publication.entity.PublicationCategory;
 
public class PublicationNotification extends QueuedSender {
 
  private final IConstructor constructor;
  private final String path;
  private final List<Publication> pubs;
  private final PublicationCategory category;
 
  public PublicationNotification(IConstructor constructor, String path, 
          List<Publication> pubs, PublicationCategory category) {
    this.constructor = constructor;
    this.path = path;
    this.pubs = pubs;
    this.category = category;
  }
 
  @Override
  protected void doSend() {
    if(category.isAvoidQueue()) {
      sendMail();
    } else {
      addToQueue();
    }
  }
  
  public String create(Publication publication) throws Exception {
    String redir = path + "?pubid=" + publication.getId() + "&item=" + publication.getId();
    HashMap<String, String> values = new HashMap<>();
    values.put(Actions.REDIR_PAR, URLEncoder.encode(redir, "UTF-8"));
    return Actions.createAction(values, false);
  }
  
  public String create(Publication publication, IContact contact) throws Exception {
    String redir = path + "?pubid=" + publication.getId() + "&item=" + publication.getId();
    return create(redir, contact);
  }
 
  public String create(String redir, IContact contact) throws Exception {
    HashMap<String, String> values = new HashMap<>();
    values.put(Actions.USER_PAR, contact.getConnector(IUser.CONNECTOR_EMAIL));
    values.put(Actions.REDIR_PAR, URLEncoder.encode(redir, "UTF-8"));
    return Actions.createAction(values, 7, false);
  }
  
  public String createRef(Publication publication) throws Exception {
    String redir;
    String entityUrl = ElephantContext.getEntityWebContext("/publication");
    String ewu = EntityWebUrls.getUrlFromEntity(publication);
    if(ewu != null && entityUrl != null) {
      redir = entityUrl + ewu;
    } else {
      redir = path + "?pubid=" + publication.getId() + "&item=" + publication.getId();
    }
    return createRef(redir);
  }
 
  public String createRef(String redir) throws Exception {
    return "{liveref:" + redir + "}";
  }
  
  public Repository repository(Publication pub) {
    return new FileAttach(PublicationPU.getObjectPath(pub)).getPublishableRepository(constructor);
  }
  
  public void addToQueue() {
    QueueManager qm = new QueueManager();
    for(IContact contact : getPlayers()) {
      List<Publication> publications = filterLangs(contact);
      try {
        MailMessageTemplate mmt = MailMessageTemplate.of(MailProviders.instance().getProvider("Publication"));
        mmt.setRoot("/publications");
        mmt.setProcessLiveLinks(false);
        mmt.setSubject(getSubject(null));
        mmt.addTo(contact.getConnector(IUser.CONNECTOR_EMAIL), contact.getName());
        ElephantMarker em = new ElephantMarker(constructor, true);
        em.put("pubs", publications);
        em.put("contact", contact);
        em.put("email", contact.getConnector(IUser.CONNECTOR_EMAIL));
        em.put("notifier", this);
        mmt.setMessage(em, "publication", contact);
        qm.addToQueue(new PublicationElephantNotification().getCategory(PublicationElephantNotification.convertId(category)),
                contact, mmt, null, "Publication");
      } catch (EmailException | NullPointerException ex) {
        Logger.getLogger(PublicationNotification.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
      }
    }
  }
  
  public void sendMail() {
    MailMessagePool pool = MailProviders.instance().getPool(constructor, "Publication");
    if(pool != null) {
      IAgreements agreements = Plugins.loadImplementation(IAgreements.class, "agreements");
      List<MailAttachment> attached = getAttached(pubs);
      for(IContact contact : getPlayers()) {
        List<Publication> publications = filterLangs(contact);
        NotificationCategory nc = Notifications.getCategory(PublicationElephantNotification.convertId(category));
        agreements.setContact(contact);
        if(agreements.canSendEmails(nc)) {
          try {
            MailMessageTemplate mmt = MailMessageTemplate.of(pool.getProvider());
            mmt.setRoot("/publications");
            mmt.setSubject(getSubject(publications));
            mmt.addTo(contact.getConnector(IUser.CONNECTOR_EMAIL), contact.getName());
            ElephantMarker em = new ElephantMarker(constructor, true);
            em.put("pubs", publications);
            em.put("contact", contact);
            em.put("email", contact.getConnector(IUser.CONNECTOR_EMAIL));
            em.put("notifier", this);
            mmt.setMessage(em, "sendable", contact);
            for(MailAttachment ma : attached) {
              mmt.attach(ma.getPath(), ma.getName(), ma.getName());
            }
            pool.addToPool(mmt);
            pool.sendPool();
            pause();
          } catch (EmailException | NullPointerException ex) {
            Logger.getLogger(PublicationNotification.class.getName()).log(Level.SEVERE, ElephantContext.logMsg(null), ex);
          }
        }
      }
    }
  }
  
  private String getSubject(List<Publication> pubs) {
    if(pubs != null && pubs.size() == 1) {
      return pubs.get(0).getTitle();
    } else {
      return category.getName() + " - " + ElephantContext.getSiteName();
    }
  }
 
  private List<IContact> getPlayers() {
    QueueManager qm = new QueueManager();
    Collection<QueueOptions> subs = qm.getSubcribers(PublicationElephantNotification.convertId(category));
    ArrayList<IContact> list = new ArrayList<>();
    for(QueueOptions qo : subs) {
      if(qo.getIdContact() != null && !QueuePeriod.DONT_SEND.equals(qo.getPeriod())) {
        IContact c = Contacts.getContactById(qo.getIdContact());
        if(c.isWebUser() && category.strongBond(ConstraintKeys.from(c))) {
          list.add(c);
        }
      }
    }
    return list;
  }
 
  private List<MailAttachment> getAttached(List<Publication> publications) {
    List<MailAttachment> list = new ArrayList<>();
    for(Publication pub : publications) {
      File[] attached = new FileAttach(PublicationPU.getObjectPath(pub))
              .getPublishableRepository(constructor).getRoot("/attached").getFiles("*.*");
      if(attached != null) {
        for(File file : attached) {
          list.add(new MailAttachment(file.getAbsolutePath(), file.getName(), file));
        }
      }
    }
    return list;
  }
  
  private List<Publication> filterLangs(IContact contact) {
    return pubs.stream().filter(p -> contact.acceptsLang(p.getLang())).collect(Collectors.toList());
  }
 
}