package org.paneris.jammyjoes.mvp;

 import java.sql.Timestamp;

 import java.util.Map;

 import org.paneris.jammyjoes.model.Graphable;

 public class CollectingCommand implements Command {

   private Map _bucket;

   private TimesliceValue _maxValue;

   private AffiliateTotals totals;

   private TimesliceFactory _timesliceFactory;

   public CollectingCommand(Map bucket, TimesliceValue max, TimesliceFactory timesliceFactory, AffiliateTotals totals) {

     _bucket = bucket;

     _timesliceFactory = timesliceFactory;

     _maxValue = max;

     this.totals = totals;

   }

   public Object visit(Object visited) {

     Graphable item = (Graphable) visited;

     EquatableComparable thisPeriod = _timesliceFactory.create(item.getDate());

     TimesliceValue amount = (TimesliceValue) _bucket.get(thisPeriod);

     if (amount == null) {

       amount = new TimesliceValue(thisPeriod, 0);

     }

     amount.setValue(new Double(amount.doubleValue() + item.getAmountForGraph()));

     item.total(totals);

     _bucket.put(thisPeriod, amount);

     if (amount.doubleValue() > _maxValue.doubleValue()) {

       amount.copyInto(_maxValue);

     }

     return item;

   }

   public void lastInteraction() {

     EquatableComparable maxDate = _timesliceFactory.create(new Timestamp(_timesliceFactory.getEndDate().getTime()));

     EquatableComparable earliest = maxDate.earliest();

     EquatableComparable previous = maxDate.previous();

     while (previous.compareTo(earliest) > -1) {

       TimesliceValue previousTimeslice = new TimesliceValue(previous, 0);

       if (!_bucket.containsKey(previous)) {

         _bucket.put(previous,previousTimeslice);

       }

       previous = previousTimeslice._date.previous();

     }

   }

 }