package net.sourceforge.fenixedu.domain.phd;

import net.sourceforge.fenixedu.domain.RootDomainObject;
import net.sourceforge.fenixedu.domain.Teacher;
import net.sourceforge.fenixedu.domain.exceptions.DomainException;
import net.sourceforge.fenixedu.domain.phd.exceptions.PhdDomainOperationException;
import pt.ist.fenixWebFramework.services.Service;
import pt.utl.ist.fenix.tools.util.i18n.Language;
import pt.utl.ist.fenix.tools.util.i18n.MultiLanguageString;

public class ThesisSubject extends ThesisSubject_Base {

    protected ThesisSubject() {
	super();
	setRootDomainObject(RootDomainObject.getInstance());
    }

    protected ThesisSubject(PhdProgramFocusArea focusArea, MultiLanguageString name, MultiLanguageString description,
	    Teacher teacher, String externalAdvisor) {
	this();

	checkParameters(focusArea, name, description, teacher);

	setPhdProgramFocusArea(focusArea);
	setName(name);
	setDescription(description);
	setTeacher(teacher);
	setExternalAdvisorName(externalAdvisor);
	
	for (PhdIndividualProgramProcess process : focusArea.getIndividualProgramProcesses()) {
	    if (isCandidacyPeriodOpen(process)) {
		new ThesisSubjectOrder(this, process, process.getHighestThesisSubjectOrder() + 1);
	    }
	}
    }

    private void checkParameters(PhdProgramFocusArea focusArea, MultiLanguageString name, MultiLanguageString description,
	    Teacher teacher) {
	String[] args = {};
	if (focusArea == null) {
	    throw new DomainException("error.net.sourceforge.fenixedu.domain.phd.ThesisSubject.focusArea.required", args);
	}

	if (name == null) {
	    String[] args1 = {};
	    if (name == null) {
	        throw new DomainException("error.net.sourceforge.fenixedu.domain.phd.ThesisSubject.name.required", args1);
	    }
	}

	if (!name.hasContent(Language.en)) {
	    throw new PhdDomainOperationException(
		    "error.net.sourceforge.fenixedu.domain.phd.ThesisSubject.name.in.english.required");
	}

	if (teacher == null) {
	    throw new PhdDomainOperationException("error.net.sourceforge.fenixedu.domain.phd.ThesisSubject.teacher.required");
	}
    }

    @Service
    public void edit(MultiLanguageString name, MultiLanguageString description, Teacher teacher, String externalAdvisor) {
	checkParameters(getPhdProgramFocusArea(), name, description, teacher);

	setName(name);
	setDescription(description);
	setTeacher(teacher);
	setExternalAdvisorName(externalAdvisor);
    }

    @Service
    public void delete() {
	for (ThesisSubjectOrder order : getThesisSubjectOrders()) {
	    if (isCandidacyPeriodOpen(order.getPhdIndividualProgramProcess())) {
		order.delete();
	    }
	}
	removePhdProgramFocusArea();

	if (!hasAnyThesisSubjectOrders()) {
	    removeTeacher();

	    removeRootDomainObject();
	    deleteDomainObject();
	}
    }

    @Service
    public static ThesisSubject createThesisSubject(PhdProgramFocusArea focusArea, MultiLanguageString name,
	    MultiLanguageString description, Teacher teacher, String externalAdvisor) {
	return new ThesisSubject(focusArea, name, description, teacher, externalAdvisor);
    }

    private boolean isCandidacyPeriodOpen(PhdIndividualProgramProcess process) {
	return process.getCandidacyProcess().getPublicPhdCandidacyPeriod() != null
		&& process.getCandidacyProcess().getPublicPhdCandidacyPeriod().isOpen();
    }
}