package net.sourceforge.fenixedu.domain.serviceRequests.documentRequests;

import java.util.Collection;
import java.util.HashSet;

import com.linkare.commons.metainfo.Linkare;

import net.sourceforge.fenixedu.dataTransferObject.serviceRequests.DocumentRequestCreateBean;
import net.sourceforge.fenixedu.domain.Enrolment;
import net.sourceforge.fenixedu.domain.accounting.EventType;
import net.sourceforge.fenixedu.domain.accounting.events.serviceRequests.CertificateRequestEvent;
import net.sourceforge.fenixedu.domain.exceptions.DomainException;

public class EnrolmentCertificateRequest extends EnrolmentCertificateRequest_Base {

    protected EnrolmentCertificateRequest() {
	super();
    }

    public EnrolmentCertificateRequest(final DocumentRequestCreateBean bean) {
	this();
	super.init(bean);

	checkParameters(bean);
	super.setDetailed(bean.getDetailed());
    }

    @Override
    protected void checkParameters(final DocumentRequestCreateBean bean) {
	if (bean.getDetailed() == null) {
	    throw new DomainException(
		    "error.serviceRequests.documentRequests.EnrolmentCertificateRequest.detailed.cannot.be.null");
	}
	if (bean.getExecutionYear() == null) {
	    throw new DomainException(
		    "error.serviceRequests.documentRequests.EnrolmentCertificateRequest.executionYear.cannot.be.null");
	} else if (!bean.getRegistration().hasAnyEnrolmentsIn(bean.getExecutionYear())) {
	    throw new DomainException("EnrolmentCertificateRequest.no.enrolments.for.registration.in.given.executionYear");
	}
    }

    @Linkare(author = "Paulo Zenida", comments = "Changed the modifiers order according to the JLS suggestions")
    @Override
    public final DocumentRequestType getDocumentRequestType() {
	return DocumentRequestType.ENROLMENT_CERTIFICATE;
    }

    @Linkare(author = "Paulo Zenida", comments = "Changed the modifiers order according to the JLS suggestions")
    @Override
    public final String getDocumentTemplateKey() {
	return getClass().getName();
    }

    @Linkare(author = "Paulo Zenida", comments = "Changed the modifiers order according to the JLS suggestions")
    @Override
    public final void setDetailed(Boolean detailed) {
	throw new DomainException("error.serviceRequests.documentRequests.EnrolmentCertificateRequest.cannot.modify.detailed");
    }

    @Linkare(author = "Paulo Zenida", comments = "Changed the modifiers order according to the JLS suggestions")
    @Override
    public final EventType getEventType() {
	return EventType.ENROLMENT_CERTIFICATE_REQUEST;
    }

    @Linkare(author = "Paulo Zenida", comments = "Changed the modifiers order according to the JLS suggestions")
    @Override
    public final Integer getNumberOfUnits() {
	return getEntriesToReport().size() + getExtraCurricularEntriesToReport().size() + getPropaedeuticEntriesToReport().size();
    }

    @Linkare(author = "Paulo Zenida", comments = "Changed the modifiers order according to the JLS suggestions")
    public final Collection<Enrolment> getEntriesToReport() {
	return filterEntries();
    }

    private Collection<Enrolment> filterEntries() {
	final Collection<Enrolment> result = new HashSet<Enrolment>();
	if (extraCurricular == null) {
	    extraCurricular = new HashSet<Enrolment>();
	} else {
	    extraCurricular.clear();
	}
	if (propaedeutic == null) {
	    propaedeutic = new HashSet<Enrolment>();
	} else {
	    propaedeutic.clear();
	}

	for (final Enrolment entry : getRegistration().getLatestCurricularCoursesEnrolments(getExecutionYear())) {
	    if (entry.isExtraCurricular() && !entry.hasAnyEnrolmentWrappers()) {
		extraCurricular.add(entry);
		continue;
	    } else if (entry.isPropaedeutic()) {
		propaedeutic.add(entry);
		continue;
	    }

	    result.add(entry);
	}

	return result;
    }

    Collection<Enrolment> extraCurricular = null;

    @Linkare(author = "Paulo Zenida", comments = "Changed the modifiers order according to the JLS suggestions")
    public final Collection<Enrolment> getExtraCurricularEntriesToReport() {
	if (extraCurricular == null) {
	    filterEntries();
	}

	return extraCurricular;
    }

    Collection<Enrolment> propaedeutic = null;

    @Linkare(author = "Paulo Zenida", comments = "Changed the modifiers order according to the JLS suggestions")
    public final Collection<Enrolment> getPropaedeuticEntriesToReport() {
	if (propaedeutic == null) {
	    filterEntries();
	}

	return propaedeutic;
    }

    @Override
    public boolean isAvailableForTransitedRegistrations() {
	return true;
    }

    @Override
    public boolean hasPersonalInfo() {
	return true;
    }

    @Override
    public CertificateRequestEvent getEvent() {
	return (CertificateRequestEvent) super.getEvent();
    }

}