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();
    }

}