package net.sourceforge.fenixedu.domain.serviceRequests;

import java.util.Arrays;
import java.util.List;

import net.sourceforge.fenixedu.dataTransferObject.serviceRequests.AcademicServiceRequestBean;
import net.sourceforge.fenixedu.dataTransferObject.student.StudentStatuteBean;
import net.sourceforge.fenixedu.domain.Enrolment;
import net.sourceforge.fenixedu.domain.ExecutionYear;
import net.sourceforge.fenixedu.domain.accounting.EventType;
import net.sourceforge.fenixedu.domain.exceptions.DomainException;
import net.sourceforge.fenixedu.domain.serviceRequests.documentRequests.AcademicServiceRequestType;
import net.sourceforge.fenixedu.domain.student.Registration;
import net.sourceforge.fenixedu.domain.student.Student;
import net.sourceforge.fenixedu.domain.student.StudentStatuteType;

public class ExtraExamRequest extends ExtraExamRequest_Base {
    
    private static List<StudentStatuteType> acceptedStatutes = Arrays.asList(StudentStatuteType.ASSOCIATIVE_LEADER);
    
    protected ExtraExamRequest() {
        super();
    }
    
    public ExtraExamRequest(final Registration registration, final Enrolment enrolment, final ExecutionYear executionYear) {
	this(registration, enrolment, executionYear, false, false);
    }
    
    public ExtraExamRequest(final Registration registration, final Enrolment enrolment, final ExecutionYear executionYear, final Boolean urgentRequest, final Boolean freeProcessed) {
	this();
	super.init(registration, executionYear, urgentRequest, freeProcessed);
	checkParameters(registration, enrolment, executionYear);
	super.setEnrolment(enrolment);
    }
    
    private void checkParameters(final Registration registration, final Enrolment enrolment, final ExecutionYear executionYear) {
	if (executionYear == null) {
	    throw new DomainException("error.ExtraExamRequest.executionYear.cannot.be.null");
	}
	
	if (!registration.hasEnrolments(enrolment)) {
	    throw new DomainException("error.ExtraExamRequest.registration.doesnot.have.enrolment");
	}
	
	if (!studentHasValidStatutes(registration, enrolment)) {
	    throw new DomainException("error.ExtraExamRequest.registration.doesnot.have.valid.statutes");
	}
    }

    private boolean studentHasValidStatutes(final Registration registration, final Enrolment enrolment) {
	final Student student = registration.getStudent();
	for (final StudentStatuteBean bean : student.getStatutes(enrolment.getExecutionPeriod())) {
	    if (acceptedStatutes.contains(bean.getStatuteType())) {
		return true;
	    }
	}
	return false;
    }

    @Override
    public void setEnrolment(Enrolment enrolment) {
        throw new DomainException("error.ExtraExamRequest.cannot.modify.enrolment");
    }

    @Override
    public String getDescription() {
	return getDescription(AcademicServiceRequestType.EXTRA_EXAM_REQUEST);
    }

    @Override
    public EventType getEventType() {
	return null;
    }
    
    @Override
    public void delete() {
        super.setEnrolment(null);
        super.delete();
    }
    
    @Override
    protected void createAcademicServiceRequestSituations(AcademicServiceRequestBean academicServiceRequestBean) {
        super.createAcademicServiceRequestSituations(academicServiceRequestBean);
        
        if (academicServiceRequestBean.isToConclude()) {
            AcademicServiceRequestSituation.create(this, new AcademicServiceRequestBean(
		    AcademicServiceRequestSituationType.DELIVERED, academicServiceRequestBean.getEmployee()));
        }
    }
}