package net.sourceforge.fenixedu.domain.studentCurriculum;

import java.util.Collections;
import java.util.Set;

import net.sourceforge.fenixedu.domain.ExecutionSemester;
import net.sourceforge.fenixedu.domain.degreeStructure.BranchCourseGroup;
import net.sourceforge.fenixedu.domain.degreeStructure.BranchType;
import net.sourceforge.fenixedu.domain.degreeStructure.CourseGroup;
import net.sourceforge.fenixedu.domain.degreeStructure.DegreeModule;
import net.sourceforge.fenixedu.domain.exceptions.DomainException;

public class BranchCurriculumGroup extends BranchCurriculumGroup_Base {

    protected BranchCurriculumGroup() {
	super();
    }

    public BranchCurriculumGroup(CurriculumGroup parentNode, BranchCourseGroup branch) {
	this();
	init(parentNode, branch);
    }

    public BranchCurriculumGroup(CurriculumGroup parentNode, BranchCourseGroup branch, ExecutionSemester executionSemester) {
	super();
	init(parentNode, branch, executionSemester);
    }

    @Override
    protected void checkInitConstraints(CurriculumGroup parent, CourseGroup courseGroup) {
	super.checkInitConstraints(parent, courseGroup);

	final BranchCourseGroup branchCourseGroup = (BranchCourseGroup) courseGroup;

	final CycleCurriculumGroup cycle = parent.getParentCycleCurriculumGroup();
	if (cycle != null && cycle.hasBranchCurriculumGroup(branchCourseGroup.getBranchType())) {
	    throw new DomainException("error.BranchCurriculumGroup.parent.cycle.cannot.have.another.branch.with.same.type");
	}
    }

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

    @Override
    public void setDegreeModule(DegreeModule degreeModule) {
	if (degreeModule != null && !(degreeModule instanceof BranchCourseGroup)) {
	    throw new DomainException("error.curriculumGroup.BranchParentDegreeModuleCanOnlyBeBranchCourseGroup");
	}
	super.setDegreeModule(degreeModule);
    }

    @Override
    public BranchCourseGroup getDegreeModule() {
	return (BranchCourseGroup) super.getDegreeModule();
    }

    public BranchType getBranchType() {
	return this.getDegreeModule().getBranchType();
    }

    @Override
    public Set<BranchCurriculumGroup> getBranchCurriculumGroups() {
	return Collections.singleton(this);
    }

    @Override
    public Set<BranchCurriculumGroup> getBranchCurriculumGroups(BranchType branchType) {
	return getBranchType() == branchType ? Collections.<BranchCurriculumGroup> singleton(this) : Collections
		.<BranchCurriculumGroup> emptySet();
    }

    @Override
    public BranchCurriculumGroup getParentBranchCurriculumGroup() {
	return this;
    }

    @Override
    public boolean hasBranchCurriculumGroup(final BranchType type) {
	return getBranchType() == type;
    }

    public boolean isMajor() {
	return getDegreeModule().isMajor();
    }

    public boolean isMinor() {
	return getDegreeModule().isMinor();
    }

}