package coreservlets.jsf.ss06;

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

import javax.faces.model.SelectItem;

public class LanguageUtils 
{
	private static String[] languages = { "Java", "JavaScript", "C#", "C++", "PHP", "Python", "Perl", "Ruby", "Scala" };
	
	private static List<SelectItem> availableLanguages;
	
	static
	{
		availableLanguages = new ArrayList<SelectItem>();
		for( String language: languages )
		{
			availableLanguages.add( new SelectItem( language ) );
		}
	}
	
	public static List< SelectItem > languagesList() 
	{
		return( availableLanguages );
	}
	
	public static List<String> randomLanguages( int numLanguagesToStudy )
	{
		List< String > randomLanguages = new ArrayList<String>();
		
		for (int i = 0; i < numLanguagesToStudy; i++ ) 
		{
			randomLanguages.add( languages[ new java.util.Random().nextInt(9 ) ] );
		}
		
		return randomLanguages;
	}
	
	public static String findMostPopularLanguage( int index )
	{
		return( languages[ index ]);
	}
}