package net.sourceforge.fenixedu.domain;

import java.util.List;

import net.sourceforge.fenixedu.domain.exceptions.DomainException;

import com.google.common.base.Function;

public class OccupationPeriodReference extends OccupationPeriodReference_Base {

    public static Function<OccupationPeriodReference, OccupationPeriod> FUNCTION_TO_PERIOD = new Function<OccupationPeriodReference, OccupationPeriod>() {

	@Override
	public OccupationPeriod apply(OccupationPeriodReference reference) {
	    return reference.getOccupationPeriod();
	}

    };

    public static Function<OccupationPeriodReference, ExecutionDegree> FUNCTION_TO_DEGREE = new Function<OccupationPeriodReference, ExecutionDegree>() {

	@Override
	public ExecutionDegree apply(OccupationPeriodReference reference) {
	    return reference.getExecutionDegree();
	}

    };

    private OccupationPeriodReference() {
	super();
	setRootDomainObject(RootDomainObject.getInstance());
    }

    public OccupationPeriodReference(OccupationPeriod period, ExecutionDegree degree, OccupationPeriodType type,
	    Integer semester, CurricularYearList curricularYears) {
	this();
	if (period == null || degree == null)
	    throw new DomainException("exception.null.arguments");
	setOccupationPeriod(period);
	setExecutionDegree(degree);
	setPeriodType(type);
	setSemester(semester);
	setCurricularYears(curricularYears);
    }

    public void delete() {
	removeOccupationPeriod();
	removeExecutionDegree();
	removeRootDomainObject();

	deleteDomainObject();
    }

    public String getCurricularYearsString() {
	CurricularYearList years = getCurricularYears();
	if (years == null)
	    return "-1";

	List<Integer> yearList = years.getYears();

	StringBuilder returnStr = new StringBuilder();

	for (Integer year : yearList) {
	    if (returnStr.length() > 0)
		returnStr.append(",");

	    returnStr.append(year);
	}

	return returnStr.toString();
    }

    public String getCurricularYearsPresentationString() {
	CurricularYearList years = getCurricularYears();
	if (years == null || years.hasAll())
	    return "Todos os anos";

	List<Integer> yearList = years.getYears();

	StringBuilder returnStr = new StringBuilder();

	for (Integer year : yearList) {
	    if (returnStr.length() > 0)
		returnStr.append(", ");

	    returnStr.append(year + "º");
	}

	if (yearList.size() > 1)
	    returnStr.append(" Anos");
	else
	    returnStr.append(" Ano");

	return returnStr.toString();
    }

}