/*
 * File    : SequenceReg.java
 * Created : 11-jul-2001 9:08
 * By      : fbusquets
 *
 * JClic - Authoring and playing system for educational activities
 *
 * Copyright (C) 2000 - 2005 Francesc Busquets & Departament
 * d'Educacio de la Generalitat de Catalunya                                        
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details (see the LICENSE file).
 */

package edu.xtec.jclic.report;

import edu.xtec.jclic.Activity;
import edu.xtec.jclic.bags.ActivitySequenceElement;
import edu.xtec.util.Html;
import java.util.Iterator;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;

/**
 *
 * @author Francesc Busquets (fbusquets@xtec.cat)
 * @version 13.08.13
 */
public class SequenceReg extends Object implements java.io.Serializable{
    
    String name;
    String description;
    List<ActivityReg> activities;
    ActivityReg currentActivity;
    long totalTime;
    boolean closed;
    protected transient Info info;
    
    /** Creates new SequenceReg */
    public SequenceReg(ActivitySequenceElement ase){
        name=ase.getTag();
        description=ase.getDescription();
        activities=new CopyOnWriteArrayList<ActivityReg>();
        currentActivity=null;
        totalTime=0;
        closed=false;
        info=new Info();
    }
    
    public String toHtmlString(edu.xtec.util.Messages msg){        
        Html html=new Html(3000);
        String fh=new Html(200).td(name, Html.LEFT, false, "ROWSPAN=\""+msg.getNumber(activities.size())+"\"").toString();
        Iterator<ActivityReg> it=activities.iterator();
        while(it.hasNext()){
            html.append(it.next().toHtmlString(msg, fh));
            fh=null;
        }
        return html.toString();
    }
    
    public Info getInfo(boolean recalc){
        if(recalc)
            info.recalc();
        return info;
    }
    
    public class Info{
        public int nActivities, nActClosed, nActSolved, nActScore, percentSolved, nActions;
        public long tScore, tTime;
        
        protected Info(){
            clear();
        }
        
        protected void clear(){
            nActivities=nActClosed=nActSolved=nActScore=percentSolved=nActions=0;
            tScore=tTime=0L;
        }
        
        public void recalc(){
            clear();
            nActivities=activities.size();
            if(nActivities>0){
                Iterator<ActivityReg> it=activities.iterator();
                while(it.hasNext()){
                    ActivityReg ar=it.next();
                    if(ar.closed){
                        nActClosed++;
                        tTime+=ar.totalTime;
                        nActions+=ar.numActions;
                        if(ar.solved)
                            nActSolved++;
                        int r=ar.getPrecision();
                        if(r>=0){
                            tScore+=r;
                            nActScore++;
                        }
                    }
                }
                if(nActClosed>0)
                    percentSolved=(nActSolved*100)/nActClosed;
                if(nActScore>0)
                    tScore/=nActScore;
            }
        }
    }
    
    void newActivity(Activity act){
        if(!closed){
            currentActivity=new ActivityReg(act);
            activities.add(currentActivity);
        }
    }
    
    void newAction(String type, String source, String dest, boolean ok){
        if(currentActivity!=null){
            currentActivity.newAction(type, source, dest, ok);
        }
    }
    
    void endActivity(int score, int numActions, boolean solved){
        if(currentActivity!=null)
            currentActivity.endActivity(score, numActions, solved);
    }
    
    void endSequence(){
        if(currentActivity!=null && !activities.isEmpty()){
            if(!currentActivity.closed) currentActivity.closeActivity();
            ActivityReg firstActivity=activities.get(0);
            totalTime=currentActivity.startTime+currentActivity.totalTime-firstActivity.startTime;
        }
    }
    
    @Override
    public String toString(){
        return new StringBuilder("SEQUENCE: ").append(name).substring(0);
    }
}