package cz.muni.fi.bronchus.questions;

import java.util.Vector;

/**
 * Ordering Objects question, with some amount of answers and their order
 * @author Tomáš Udržal
 */
public class OrderingObjectsQuestion extends Question {
    
    /**
     * Vector of answers
     */
    private Vector answers;

    /**
     * Vector of answers's orders
     */
    private Vector orders;
    
    /**
     * Horizontally adjustment of answers
     */
    private boolean horizontally;
    
    /**
     * Shuffle order of answers
     */
    private boolean shuffle;
    
    /** Creates a new instance of OrderingObjectsQuestion */
    public OrderingObjectsQuestion() {
        super("Ordering Objects");
        answers=new Vector();
        orders=new Vector();
        shuffle=false;
        horizontally=true;
    }

    /**
     * Setter method for the adjustment of answers
     * @param x true if horizontally false if vertically
     */
    public void setHorizontally(boolean x) { horizontally=x; }

    /**
     * Getter method for the adjustment of answers
     * @return true if horizontally false if vertically
     */
    public boolean isHorizontally() { return horizontally; }

    /**
     * Adds an answer to the end of the Vector
     * @param x answer to be added
     */
    public void addAnswer(String x) { answers.add(x); }
    
    /**
     * Adds an answer's order to the end of the Vector
     * @param x answer's order to be added
     */
    public void addAnswerOrder(String x) { orders.add(x); }
    
    /**
     * Getter method for the Vector of answers
     * @return Vector of answers
     */
    public Vector getAnswers() { return answers; }
    
    /**
     * Getter method for the Vector of answers's orders
     * @return Vector of answers's orders
     */
    public Vector getOrders() { return orders; }

    /**
     * Setter method for the shuffle of answers
     * @param x true if shuffle of answers is enabled otherwise false
     */
    public void setShuffle(boolean x) { shuffle=x; }
    
    /**
     * Getter method for the shuffle of answers
     * @return true if shuffle of answers is enabled otherwise false
     */
    public boolean isShuffle() { return shuffle; }
    
    /**
     * Method for generating a response processing condition from a selected answers
     * @return response processing condition
     */
    public String generateCondition() {
        String s="";
        for (int i=0; i<orders.size(); i++) {
            s=s+answerLetters[i]+"==#"+(String)orders.get(i)+" && ";
        }
        if (s.compareTo("")!=0)
            s=s.substring(0,s.length()-4);  //odstran posledni " && "
        return s;
    } 
    
}