package de.unisiegen.gtitool.ui.i18n;


import java.util.ArrayList;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;

import de.unisiegen.gtitool.core.parser.style.PrettyString;
import de.unisiegen.gtitool.core.parser.style.PrettyToken;
import de.unisiegen.gtitool.core.parser.style.Style;
import de.unisiegen.gtitool.core.preferences.item.LanguageItem;
import de.unisiegen.gtitool.logger.Logger;


/**
 * The class to get the messages and the available languages.
 * 
 * @author Christian Fehler
 * @version $Id$
 */
public final class Messages
{

  /**
   * The {@link Logger} for this class.
   */
  private static final Logger logger = Logger.getLogger ( Messages.class );


  /**
   * The quotation mark.
   */
  public static final String QUOTE = "'"; //$NON-NLS-1$


  /**
   * Returns the available {@link LanguageItem}s.
   * 
   * @return The available {@link LanguageItem}s.
   */
  public final static ArrayList < LanguageItem > getLanguageItems ()
  {
    ArrayList < LanguageItem > list = new ArrayList < LanguageItem > ();
    list.add ( new LanguageItem ( "Deutsch", new Locale ( "de" ) ) );//$NON-NLS-1$ //$NON-NLS-2$
    list.add ( new LanguageItem ( "English", new Locale ( "en" ) ) );//$NON-NLS-1$ //$NON-NLS-2$
    return list;
  }


  /**
   * Gets a {@link PrettyString} for the given key from the resource bundle of
   * the core project.
   * 
   * @param key The key for the desired string.
   * @param arguments The optional arguments.
   * @return The string for the given key.
   */
  public final static PrettyString getPrettyString ( String key,
      PrettyString ... arguments )
  {
    try
    {
      ResourceBundle resourceBundle = ResourceBundle
          .getBundle ( "de.unisiegen.gtitool.ui.i18n.messages" ); //$NON-NLS-1$
      PrettyString message = new PrettyString ( new PrettyToken (
          resourceBundle.getString ( key ), Style.NONE ) );
      for ( int i = 0 ; i < arguments.length ; i++ )
      {
        message.replace ( "{" + i + "}", arguments [ i ] ); //$NON-NLS-1$//$NON-NLS-2$
      }
      return message;
    }
    catch ( MissingResourceException e )
    {
      logger.error ( "getPrettyString", "key not found", e ); //$NON-NLS-1$ //$NON-NLS-2$
      return new PrettyString ( new PrettyToken ( key, Style.NONE ) );
    }
    catch ( IllegalArgumentException e )
    {
      logger.error ( "getPrettyString", "illegal argument exception", e ); //$NON-NLS-1$ //$NON-NLS-2$
      return new PrettyString ( new PrettyToken ( key, Style.NONE ) );
    }
  }


  /**
   * Gets a string for the given key from the resource bundle of the ui project.
   * 
   * @param key The key for the desired string.
   * @param arguments The optional arguments.
   * @return The string for the given key.
   */
  public final static String getString ( String key, Object ... arguments )
  {
    try
    {
      ResourceBundle resourceBundle = ResourceBundle
          .getBundle ( "de.unisiegen.gtitool.ui.i18n.messages" ); //$NON-NLS-1$
      String message = resourceBundle.getString ( key );
      for ( int i = 0 ; i < arguments.length ; i++ )
      {
        if ( arguments [ i ] == null )
        {
          continue;
        }
        message = message.replace ( "{" + i + "}", //$NON-NLS-1$ //$NON-NLS-2$
            arguments [ i ].toString () );
      }
      return message;
    }
    catch ( MissingResourceException exc )
    {
      return de.unisiegen.gtitool.core.i18n.Messages
          .getString ( key, arguments );
    }
    catch ( IllegalArgumentException exc )
    {
      logger.error ( "getString", "illegal argument exception", exc ); //$NON-NLS-1$ //$NON-NLS-2$
      return key;
    }
  }
}