package net.sourceforge.fenixedu.presentationTier.renderers.providers;

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

import net.sourceforge.fenixedu.dataTransferObject.SummariesManagementBean;
import net.sourceforge.fenixedu.domain.ExecutionCourse;
import net.sourceforge.fenixedu.domain.Shift;
import net.sourceforge.fenixedu.domain.ShiftType;
import net.sourceforge.fenixedu.domain.Summary;
import net.sourceforge.fenixedu.presentationTier.renderers.converters.DomainObjectKeyConverter;
import net.sourceforge.fenixedu.renderers.DataProvider;
import net.sourceforge.fenixedu.renderers.components.converters.Converter;

public class LastSummariesToSummariesManagementProvider implements DataProvider {

    public Object provide(Object source, Object currentValue) {
        SummariesManagementBean bean = (SummariesManagementBean) source;
        Shift shift = bean.getShift();
        if(shift != null) {
            ShiftType tipo = shift.getTipo();
            ExecutionCourse executionCourse = bean.getExecutionCourse();
            List<Summary> summaries = new ArrayList<Summary>();
            summaries.addAll(executionCourse.getSummariesByShiftType(tipo));            
            Collections.sort(summaries, Summary.COMPARATOR_BY_DATE_AND_HOUR);
            
            List<Summary> result = new ArrayList<Summary>();
            if(!summaries.isEmpty() && summaries.size() > 4) {
                result = summaries.subList(0, 4);
            } else {
        	result = summaries;
            }
            
            if(bean.getSummary() != null) {
        	result.remove(bean.getSummary());
            }
            
            return result;
        }      
        return new ArrayList<Summary>();
    }

    public Converter getConverter() {        
        return new DomainObjectKeyConverter();
    }

}