package net.sourceforge.fenixedu.domain.organizationalStructure;

import java.util.ArrayList;
import java.util.List;
import java.util.SortedSet;
import java.util.TreeSet;

import net.sourceforge.fenixedu.domain.CompetenceCourse;
import net.sourceforge.fenixedu.domain.CurricularCourse;
import net.sourceforge.fenixedu.domain.Degree;
import net.sourceforge.fenixedu.domain.Department;
import net.sourceforge.fenixedu.domain.ExecutionYear;
import net.sourceforge.fenixedu.domain.administrativeOffice.AdministrativeOffice;
import net.sourceforge.fenixedu.domain.exceptions.DomainException;
import net.sourceforge.fenixedu.domain.space.Campus;

import org.joda.time.YearMonthDay;

import pt.utl.ist.fenix.tools.util.i18n.MultiLanguageString;

import com.linkare.commons.metainfo.Linkare;

public class CompetenceCourseGroupUnit extends CompetenceCourseGroupUnit_Base {

    private CompetenceCourseGroupUnit() {
	super();
	super.setType(PartyTypeEnum.COMPETENCE_COURSE_GROUP);
    }

    @Linkare(author = "Paulo Zenida", comments = "Changed return type from Unit to CompetenceCourseGroupUnit")
    public static CompetenceCourseGroupUnit createNewInternalCompetenceCourseGroupUnit(MultiLanguageString name,
	    Integer costCenterCode, String acronym, YearMonthDay beginDate, YearMonthDay endDate, Unit parentUnit,
	    AccountabilityType accountabilityType, String webAddress, UnitClassification classification,
	    Boolean canBeResponsibleOfSpaces, Campus campus) {

	CompetenceCourseGroupUnit competenceCourseGroupUnit = new CompetenceCourseGroupUnit();
	competenceCourseGroupUnit.init(name, costCenterCode, acronym, beginDate, endDate, webAddress, classification,
		canBeResponsibleOfSpaces, campus);
	competenceCourseGroupUnit.addParentUnit(parentUnit, accountabilityType);

	checkIfAlreadyExistsOneCompetenceCourseGroupUnitWithSameAcronymAndName(competenceCourseGroupUnit);

	return competenceCourseGroupUnit;
    }

    @Override
    public void edit(MultiLanguageString unitName, Integer unitCostCenter, String acronym, YearMonthDay beginDate,
	    YearMonthDay endDate, String webAddress, UnitClassification classification, Department department, Degree degree,
	    AdministrativeOffice administrativeOffice, Boolean canBeResponsibleOfSpaces, Campus campus) {

	super.edit(unitName, unitCostCenter, acronym, beginDate, endDate, webAddress, classification, department, degree,
		administrativeOffice, canBeResponsibleOfSpaces, campus);

	checkIfAlreadyExistsOneCompetenceCourseGroupUnitWithSameAcronymAndName(this);
    }

    @Override
    public Accountability addParentUnit(Unit parentUnit, AccountabilityType accountabilityType) {
	if (parentUnit != null && (!parentUnit.isInternal() || !parentUnit.isScientificAreaUnit())) {
	    throw new DomainException("error.unit.invalid.parentUnit");
	}
	return super.addParentUnit(parentUnit, accountabilityType);
    }

    @Override
    public boolean isCompetenceCourseGroupUnit() {
	return true;
    }

    @Linkare(author = "Paulo Zenida", comments = "Included the additional secondary competence courses")
    @Override
    public List<CompetenceCourse> getCompetenceCourses() {
	final SortedSet<CompetenceCourse> result = new TreeSet<CompetenceCourse>(
		CompetenceCourse.COMPETENCE_COURSE_COMPARATOR_BY_NAME);
	result.addAll(super.getCompetenceCourses());
	result.addAll(super.getAssociatedCompetenceCourses());
	return new ArrayList<CompetenceCourse>(result);
    }

    @Override
    public void setType(PartyTypeEnum partyTypeEnum) {
	throw new DomainException("unit.impossible.set.type");
    }

    public List<CurricularCourse> getCurricularCourses() {
	List<CompetenceCourse> competenceCourses = getCompetenceCourses();
	List<CurricularCourse> curricularCourses = new ArrayList<CurricularCourse>();

	for (CompetenceCourse competenceCourse : competenceCourses) {
	    curricularCourses.addAll(competenceCourse.getAssociatedCurricularCourses());
	}

	return curricularCourses;
    }

    public List<CompetenceCourse> getCompetenceCoursesByExecutionYear(ExecutionYear executionYear) {
	List<CompetenceCourse> competenceCourses = this.getCompetenceCourses();
	List<CompetenceCourse> competenceCoursesByExecutionYear = new ArrayList<CompetenceCourse>();
	for (CompetenceCourse competenceCourse : competenceCourses) {
	    if (competenceCourse.hasActiveScopesInExecutionYear(executionYear)) {
		competenceCoursesByExecutionYear.add(competenceCourse);
	    }

	}
	return competenceCoursesByExecutionYear;
    }

    @Override
    public void delete() {
	if (hasAnyCompetenceCourses()) {
	    throw new DomainException("error.unit.cannot.be.deleted");
	}
	super.delete();
    }

    private static void checkIfAlreadyExistsOneCompetenceCourseGroupUnitWithSameAcronymAndName(
	    CompetenceCourseGroupUnit competenceCourseGroupUnit) {
	for (Unit parentUnit : competenceCourseGroupUnit.getParentUnits()) {
	    for (Unit unit : parentUnit.getAllSubUnits()) {
		if (!unit.equals(competenceCourseGroupUnit)
			&& competenceCourseGroupUnit.getName().equalsIgnoreCase(unit.getName())) {
		    throw new DomainException("error.unit.already.exists.unit.with.same.name.or.acronym");
		}
	    }
	}
    }

    @Linkare(author = "Paulo Zenida")
    public static List<CompetenceCourseGroupUnit> readAllCompetenceCourseGroupUnits() {
	final List<Unit> allUnits = Unit.readAllUnits();
	final List<CompetenceCourseGroupUnit> result = new ArrayList<CompetenceCourseGroupUnit>();
	for (final Unit unit : allUnits) {
	    if (unit.isCompetenceCourseGroupUnit()) {
		result.add((CompetenceCourseGroupUnit) unit);
	    }
	}
	return result;
    }

    @Linkare(author = "Paulo Zenida")
    @Override
    public void addAssociatedCompetenceCourses(CompetenceCourse associatedCompetenceCourses) {
	if (associatedCompetenceCourses != null) {
	    associatedCompetenceCourses.addAdditionalCompetenceCourseGroupUnits(this);
	}
    }

    @Linkare(author = "Paulo Zenida")
    @Override
    public void removeAssociatedCompetenceCourses(CompetenceCourse associatedCompetenceCourses) {
	if (associatedCompetenceCourses != null) {
	    associatedCompetenceCourses.removeAdditionalCompetenceCourseGroupUnits(this);
	}
    }
}