package net.sourceforge.fenixedu.domain.organizationalStructure;

import net.sourceforge.fenixedu.domain.RootDomainObject;
import net.sourceforge.fenixedu.domain.contents.Content;
import net.sourceforge.fenixedu.domain.exceptions.DomainException;
import dml.runtime.RelationAdapter;

public class UnitAcronym extends UnitAcronym_Base {

    static {
	UnitUnitAcronym.addListener(new RelationAdapter<UnitAcronym, Unit>() {

	    @Override
	    public void afterRemove(UnitAcronym unitAcronym, Unit unit) {
		if (unitAcronym != null) {
		    if (!unitAcronym.hasAnyUnits()) {
			unitAcronym.delete();
		    }
		}
	    }

	});
    }

    public UnitAcronym(final String acronym) {
	super();
	setRootDomainObject(RootDomainObject.getInstance());
	setAcronym(acronym);
    }

    @Override
    public void setAcronym(String acronym) {
	super.setAcronym(acronym == null ? null : acronym.toLowerCase());
    }

    public void delete() {
	if (!canBeDeleted()) {
	    throw new DomainException("error.unitAcronym.cannot.be.deleted");
	}
	setRootDomainObject(null);
	deleteDomainObject();
    }

    private boolean canBeDeleted() {
	return !hasAnyUnits();
    }

    public static UnitAcronym readUnitAcronymByAcronym(final String acronym) {
	return readUnitAcronymByAcronym(acronym, false);
    }

    public static UnitAcronym readUnitAcronymByAcronym(String acronym, boolean shouldNormalize) {
	if (acronym == null) {
	    return null;
	}
	final String acronymLowerCase = shouldNormalize ? Content.normalize(acronym.toLowerCase()) : acronym.toLowerCase();

	for (UnitAcronym unitAcronym : RootDomainObject.getInstance().getUnitAcronymsSet()) {

	    if ((shouldNormalize && Content.normalize(unitAcronym.getAcronym()).equals(acronymLowerCase))
		    || unitAcronym.getAcronym().equals(acronymLowerCase)) {
		return unitAcronym;
	    }
	}
	return null;
    }
}