/*
 * ReadExamsByDayAndBeginning.java
 *
 * Created on 2003/03/19
 */

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

import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collection;
import java.util.List;

import net.sourceforge.fenixedu.applicationTier.FenixService;
import net.sourceforge.fenixedu.dataTransferObject.InfoRoom;
import net.sourceforge.fenixedu.domain.Exam;
import net.sourceforge.fenixedu.domain.space.AllocatableSpace;

import org.apache.commons.collections.CollectionUtils;

import pt.ist.fenixWebFramework.services.Service;

public class ReadRoomsWithNoExamsInDayAndBeginning extends FenixService {

    @Service
    public static List run(Calendar day, Calendar beginning) {
	List exams = Exam.getAllByDate(day, beginning);
	Collection<AllocatableSpace> allRooms = AllocatableSpace.getAllActiveAllocatableSpacesForEducation();

	List occupiedRooms = new ArrayList();
	for (int i = 0; i < exams.size(); i++) {
	    List examRooms = ((Exam) exams.get(i)).getAssociatedRooms();
	    if (examRooms != null && examRooms.size() > 0) {
		for (int r = 0; r < examRooms.size(); r++) {
		    occupiedRooms.add(examRooms.get(r));
		}
	    }
	}

	List availableInfoRooms = new ArrayList();
	List availableRooms = (ArrayList) CollectionUtils.subtract(allRooms, occupiedRooms);
	for (int i = 0; i < availableRooms.size(); i++) {
	    AllocatableSpace room = (AllocatableSpace) availableRooms.get(i);
	    InfoRoom infoRoom = InfoRoom.newInfoFromDomain(room);
	    availableInfoRooms.add(infoRoom);
	}

	return availableInfoRooms;
    }
}