package awb;

import java.util.*;
import java.net.*;
import java.io.*;

public class MadLibGenerator extends Object
{
    private Vector quotes;
    private Random rand;
    private final static String SOURCE = "http://www.duke.edu/~srr1/cps1/misc/madlibs.dat";

    public MadLibGenerator()
    {
	quotes = new Vector();
	rand = new Random();

	try
	{
	    URL u = new URL(SOURCE);
	    URLConnection uc = u.openConnection();
	    DataInputStream in = new DataInputStream(uc.getInputStream());

	    String line = in.readLine();
	    String current;
	    while (line != null)
	    {
		current = "";
		while (! line.startsWith("%%%%%"))
		{
		    current = current + line + "\n";
		    line = in.readLine();
		}
		quotes.addElement(current);
		line = in.readLine();
	    }
	}
	catch (MalformedURLException ex)
	{
	    System.out.println("Bad URL: " + SOURCE);
	    quotes.addElement("No quotes available");
	}
	catch (IOException ex)
	{
	    System.out.println("Error getting stream from " + SOURCE);
	    quotes.addElement("No quotes available");
	}
    }

    public String getMadLib()
    {
	int next = rand.nextInt() % quotes.size();
	if (next < 0) next *= -1;
	return (String)quotes.elementAt(next);
    }
}