package net.sourceforge.fenixedu.domain;

import net.sourceforge.fenixedu.domain.exceptions.DomainException;
import net.sourceforge.fenixedu.domain.time.calendarStructure.AcademicInterval;

import org.joda.time.DateTime;

public class TutorshipIntention extends TutorshipIntention_Base {
    public TutorshipIntention(DegreeCurricularPlan dcp, Teacher teacher, AcademicInterval interval) {
	super();
	setDegreeCurricularPlan(dcp);
	setTeacher(teacher);
	setAcademicInterval(interval);
	checkOverlaps();
    }

    private void checkOverlaps() {
	for (TutorshipIntention intention : getDegreeCurricularPlan().getTutorshipIntentionSet()) {
	    if (!intention.equals(this) && intention.getTeacher().equals(getTeacher())
		    && intention.getAcademicInterval().overlaps(getAcademicInterval())) {
		throw new DomainException("error.tutorship.overlapingTutorshipIntentions");
	    }
	}
    }

    protected RootDomainObject getRootDomainObject() {
	return getDegreeCurricularPlan().getRootDomainObject();
    }

    public boolean isDeletable() {
	for (Tutorship tutorship : getTeacher().getTutorshipsSet()) {
	    if (tutorship.getStudentCurricularPlan().getDegreeCurricularPlan().equals(getDegreeCurricularPlan())
		    && getAcademicInterval().contains(tutorship.getStartDate().toDateTime(new DateTime(0)))) {
		return false;
	    }
	}
	return true;
    }

    public void delete() {
	removeDegreeCurricularPlan();
	removeTeacher();
	deleteDomainObject();
    }

    public static TutorshipIntention readByDcpAndTeacherAndInterval(DegreeCurricularPlan dcp, Teacher teacher,
	    AcademicInterval academicInterval) {
	for (TutorshipIntention intention : teacher.getTutorshipIntentionSet()) {
	    if (intention.getDegreeCurricularPlan().equals(dcp) && intention.getAcademicInterval().equals(academicInterval)) {
		return intention;
	    }
	}
	return null;
    }
}