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

import pt.ist.fenixWebFramework.services.Service;

import pt.ist.fenixWebFramework.security.accessControl.Checked;

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

import net.sourceforge.fenixedu.applicationTier.FenixService;
import net.sourceforge.fenixedu.dataTransferObject.InfoTeacher;
import net.sourceforge.fenixedu.dataTransferObject.SiteView;
import net.sourceforge.fenixedu.dataTransferObject.teacher.InfoCareer;
import net.sourceforge.fenixedu.dataTransferObject.teacher.InfoSiteCareers;
import net.sourceforge.fenixedu.domain.CareerType;
import net.sourceforge.fenixedu.domain.Teacher;
import net.sourceforge.fenixedu.domain.teacher.Career;
import net.sourceforge.fenixedu.domain.teacher.ProfessionalCareer;
import net.sourceforge.fenixedu.domain.teacher.TeachingCareer;

import org.apache.commons.beanutils.BeanComparator;

public class ReadCareers extends FenixService {

    @Checked("RolePredicates.TEACHER_PREDICATE")
    @Service
    public static SiteView run(CareerType careerType, String user) {
	final Teacher teacher = Teacher.readTeacherByUsername(user);

	final InfoSiteCareers bodyComponent = new InfoSiteCareers();
	bodyComponent.setInfoCareers(getInfoCareers(teacher, careerType));
	bodyComponent.setCareerType(careerType);

	final InfoTeacher infoTeacher = InfoTeacher.newInfoFromDomain(teacher);
	bodyComponent.setInfoTeacher(infoTeacher);

	SiteView siteView = new SiteView(bodyComponent);
	return siteView;
    }

    private static List getInfoCareers(Teacher teacher, CareerType careerType) {

	final List<InfoCareer> oldestCareers = new ArrayList();
	final List<InfoCareer> newestCareers = new ArrayList();

	final List<Career> careers = teacher.getAssociatedCareers();
	for (final Career career : careers) {
	    boolean addCareer = false;
	    if (careerType == null
		    || (careerType.equals(CareerType.PROFESSIONAL) && career.getClass().getName().equals(
			    ProfessionalCareer.class.getName()))) {
		addCareer = true;
	    } else if (careerType.equals(CareerType.TEACHING)
		    && career.getClass().getName().equals(TeachingCareer.class.getName())) {
		addCareer = true;
	    }
	    if (addCareer && career.getBeginYear() == null) {
		oldestCareers.add(InfoCareer.newInfoFromDomain(career));
	    } else if (addCareer) {
		newestCareers.add(InfoCareer.newInfoFromDomain(career));
	    }
	}
	Collections.sort(newestCareers, new BeanComparator("beginYear"));
	oldestCareers.addAll(newestCareers);

	return oldestCareers;
    }
}