/**
* Copyright © 2002 Instituto Superior Técnico
*
* This file is part of FenixEdu Academic.
*
* FenixEdu Academic is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* FenixEdu Academic 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with FenixEdu Academic. If not, see <http://www.gnu.org/licenses/>.
*/
package org.fenixedu.academic.domain.messaging;
import jvstm.cps.ConsistencyPredicate;
import org.fenixedu.academic.domain.Person;
import org.fenixedu.academic.domain.exceptions.DomainException;
import org.fenixedu.academic.util.MultiLanguageString;
import org.joda.time.DateTime;
public class ConversationThread extends ConversationThread_Base implements Comparable<ConversationThread> {
public ConversationThread(Forum forum, Person creator, MultiLanguageString subject) {
setCreationDate(new DateTime());
init(forum, creator, subject);
}
private void init(Forum forum, Person creator, MultiLanguageString subject) {
setForum(forum);
setTitle(subject);
setCreator(creator);
}
@Override
public void setForum(Forum forum) {
if (forum == null) {
throw new DomainException("conversationThread.forum.cannot.be.null");
}
super.setForum(forum);
}
@Override
public void setTitle(MultiLanguageString subject) {
if (subject == null || subject.getContent() == null || subject.getContent().trim().isEmpty()) {
throw new DomainException("conversationThread.subject.cannot.be.null");
}
super.setTitle(subject);
}
@Override
public void setCreator(Person creator) {
if (creator == null) {
throw new DomainException("conversationThread.creator.cannot.be.null");
}
super.setCreator(creator);
}
public void checkIfPersonCanWrite(Person person) {
getForum().checkIfPersonCanWrite(person);
}
public ConversationMessage createConversationMessage(Person creator, MultiLanguageString body) {
checkIfPersonCanWrite(creator);
return new ConversationMessage(this, creator, body);
}
public ConversationMessage getNextToLastConversationMessage() {
ConversationMessage lastConversationMessage = null;
ConversationMessage nextToLastConversationMessage = null;
for (ConversationMessage conversationMessage : getMessageSet()) {
if (lastConversationMessage == null) {
lastConversationMessage = conversationMessage;
} else if (conversationMessage.getCreationDate().compareTo(lastConversationMessage.getCreationDate()) > 1) {
nextToLastConversationMessage = lastConversationMessage;
lastConversationMessage = conversationMessage;
} else if (nextToLastConversationMessage == null) {
nextToLastConversationMessage = conversationMessage;
} else if (conversationMessage.getCreationDate().compareTo(nextToLastConversationMessage.getCreationDate()) > 1) {
nextToLastConversationMessage = conversationMessage;
}
}
return nextToLastConversationMessage;
}
public void addConversationMessages(ConversationMessage conversationMessage) {
conversationMessage.setConversationThread(this);
}
@ConsistencyPredicate
public final boolean checkTitle() {
return getTitle() != null && getTitle().getContent() != null && !getTitle().getContent().trim().isEmpty();
}
public void delete() {
for (final ConversationMessage message : getMessageSet()) {
message.delete();
}
setCreator(null);
setForum(null);
deleteDomainObject();
}
@Override
public int compareTo(ConversationThread o) {
return this.getCreationDate().compareTo(o.getCreationDate());
}
}