/*
 * Created on 8/Ago/2003
 */

package net.sourceforge.fenixedu.applicationTier.Servico.teacher;

import java.util.ArrayList;
import java.util.List;

import net.sourceforge.fenixedu.applicationTier.FenixService;
import net.sourceforge.fenixedu.applicationTier.Servico.exceptions.FenixServiceException;
import net.sourceforge.fenixedu.domain.Attends;
import net.sourceforge.fenixedu.domain.Grouping;
import net.sourceforge.fenixedu.domain.Shift;
import net.sourceforge.fenixedu.domain.student.Registration;

/**
 * @author ansr & scpo
 */

public class CreateStudentGroup extends FenixService {

    private List buildStudentList(List<String> studentUserNames, Grouping grouping) throws FenixServiceException {

	List studentList = new ArrayList();
	for (final String studantUserName : studentUserNames) {
	    Attends attend = grouping.getStudentAttend(studantUserName);
	    Registration registration = attend.getRegistration();
	    studentList.add(registration);
	}
	return studentList;
    }

    public Boolean run(Integer executionCourseID, Integer groupNumber, Integer groupingID, Integer shiftID, List studentUserNames)
	    throws FenixServiceException {
	final Grouping grouping = rootDomainObject.readGroupingByOID(groupingID);

	if (grouping == null)
	    throw new FenixServiceException();

	Shift shift = rootDomainObject.readShiftByOID(shiftID);

	List studentList = buildStudentList(studentUserNames, grouping);

	grouping.createStudentGroup(shift, groupNumber, studentList);

	return true;
    }
}