package net.sourceforge.fenixedu.domain;

import java.util.Comparator;
import java.util.List;

import net.sourceforge.fenixedu.domain.exceptions.DomainException;

import org.apache.commons.beanutils.BeanComparator;
import org.apache.commons.collections.comparators.ComparatorChain;
import org.joda.time.DateTime;

import pt.ist.fenixWebFramework.security.accessControl.Checked;
import pt.utl.ist.fenix.tools.util.i18n.MultiLanguageString;

public class PunctualRoomsOccupationComment extends PunctualRoomsOccupationComment_Base {

    public static final Comparator<PunctualRoomsOccupationComment> COMPARATOR_BY_INSTANT = new ComparatorChain();
    static {
	((ComparatorChain) COMPARATOR_BY_INSTANT).addComparator(new BeanComparator("instant"));
	((ComparatorChain) COMPARATOR_BY_INSTANT).addComparator(DomainObject.COMPARATOR_BY_ID);
    }

    @Checked("ResourceAllocationRolePredicates.checkPermissionsToManagePunctualRoomsOccupationComments")
    public PunctualRoomsOccupationComment(PunctualRoomsOccupationRequest request, MultiLanguageString subject,
	    MultiLanguageString description, Person owner, DateTime instant) {

	super();
	checkIfCommentAlreadyExists(owner, subject, description);
	setRootDomainObject(RootDomainObject.getInstance());
	setRequest(request);
	setOwner(owner);
	setSubject(subject);
	setDescription(description);
	setInstant(instant);
    }

    @Checked("ResourceAllocationRolePredicates.checkPermissionsToManagePunctualRoomsOccupationComments")
    public void edit(MultiLanguageString subject, MultiLanguageString description) {
	if (!getRequest().getCurrentState().equals(RequestState.NEW)) {
	    throw new DomainException("error.PunctualRoomsOccupationRequest.impossible.edit");
	}
	setSubject(subject);
	setDescription(description);
    }

    @jvstm.cps.ConsistencyPredicate
    protected boolean checkRequiredParameters() {
	return getInstant() != null && getSubject() != null && !getSubject().isEmpty() && getDescription() != null
		&& !getDescription().isEmpty();
    }

    public String getPresentationInstant() {
	return getInstant().toString("dd/MM/yyyy HH:mm");
    }

    public RequestState getState() {
	return getRequest().getState(getInstant());
    }

    @Override
    public void setInstant(DateTime instant) {
	if (instant == null) {
	    throw new DomainException("error.PunctualRoomsOccupationComment.empty.instant");
	}
	super.setInstant(instant);
    }

    @Override
    public void setDescription(MultiLanguageString description) {
	if (description == null || description.isEmpty()) {
	    throw new DomainException("error.PunctualRoomsOccupationComment.empty.description");
	}
	super.setDescription(description);
    }

    @Override
    public void setSubject(MultiLanguageString subject) {
	if (subject == null || subject.isEmpty()) {
	    throw new DomainException("error.PunctualRoomsOccupationComment.empty.subject");
	}
	super.setSubject(subject);
    }

    @Override
    public void setRequest(PunctualRoomsOccupationRequest request) {
	if (request == null) {
	    throw new DomainException("error.PunctualRoomsOccupationComment.empty.request");
	}
	super.setRequest(request);
    }

    @Override
    public void setOwner(Person owner) {
	if (owner == null) {
	    throw new DomainException("error.PunctualRoomsOccupationComment.empty.owner");
	}
	super.setOwner(owner);
    }

    private void checkIfCommentAlreadyExists(Person owner, MultiLanguageString subject, MultiLanguageString description) {
	List<PunctualRoomsOccupationComment> comments = owner.getPunctualRoomsOccupationComments();
	for (PunctualRoomsOccupationComment comment : comments) {
	    if (comment.getDescription().compareTo(description) == 0) {
		throw new DomainException("error.PunctualRoomsOccupationComment.comment.already.exists");
	    }
	}
    }
}