/*
 * Created on 10/Set/2003, 20:47:24
 * changed on 4/Jan/2004, 19:33:11 (generalize for any execution course)
 *By Goncalo Luiz gedl [AT] rnl [DOT] ist [DOT] utl [DOT] pt
 */
package net.sourceforge.fenixedu.applicationTier.Servico.publico;

import java.util.List;

import net.sourceforge.fenixedu.applicationTier.FenixService;
import net.sourceforge.fenixedu.dataTransferObject.StudentGroupAttendacyInformation;
import net.sourceforge.fenixedu.domain.Attends;
import net.sourceforge.fenixedu.domain.ExecutionCourse;
import net.sourceforge.fenixedu.domain.StudentGroup;
import net.sourceforge.fenixedu.domain.student.Registration;
import net.sourceforge.fenixedu.presentationTier.Action.Seminaries.Exceptions.BDException;
import pt.ist.fenixWebFramework.services.Service;

/**
 * @author Goncalo Luiz gedl [AT] rnl [DOT] ist [DOT] utl [DOT] pt
 * 
 * 
 *         Created at 10/Set/2003, 20:47:24
 * 
 */
public class GetProjectGroupAttendantsByExecutionCourseIDANDStudentUsername extends FenixService {

    @Service
    public static StudentGroupAttendacyInformation run(Integer executionCourseID, String username) throws BDException {

	Registration registration = Registration.readByUsername(username);

	ExecutionCourse executionCourse = rootDomainObject.readExecutionCourseByOID(executionCourseID);

	Attends attendacy = registration.readAttendByExecutionCourse(executionCourse);
	if (attendacy == null)
	    return null; // the student is not enrolled on this course

	List<StudentGroup> attendStudentGroup = attendacy.getStudentGroups();
	StudentGroup studentGroup = (attendStudentGroup.isEmpty()) ? null : attendStudentGroup.get(0);

	if (studentGroup == null)
	    return null; // the student has not a group, at least at this
	// course

	StudentGroupAttendacyInformation info = new StudentGroupAttendacyInformation();
	info.setShiftName(studentGroup.getShift().getNome());
	List lessons = studentGroup.getShift().getAssociatedLessons();
	info.setDegreesNames(executionCourse.getAssociatedCurricularCourses());
	info.setLessons(lessons);
	info.setGroupNumber(studentGroup.getGroupNumber());

	List groupAttends = studentGroup.getAttends();
	info.setGroupAttends(groupAttends);

	return info;
    }
}