/*******************************************************************************
 * Copyright 2014 Federal Chancellery Austria
 * MOA-ID has been developed in a cooperation between BRZ, the Federal
 * Chancellery Austria - ICT staff unit, and Graz University of Technology.
 *
 * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 * http://www.osor.eu/eupl/
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 *
 * This product combines work with different licenses. See the "NOTICE" text
 * file for details on the various modules and licenses.
 * The "NOTICE" text file is part of the distribution. Any derivative works
 * that you distribute must include a readable copy of the "NOTICE" text file.
 *******************************************************************************/
package at.gv.egovernment.moa.id.configuration.helper;


import at.gv.egovernment.moa.id.configuration.config.ConfigurationProvider;
import at.gv.egovernment.moa.id.configuration.exception.ConfigurationException;

import java.text.MessageFormat;
import java.util.Locale;
import java.util.ResourceBundle;

import javax.servlet.http.HttpServletRequest;

import org.apache.log4j.Logger;


public class LanguageHelper {

	private static final Logger log = Logger.getLogger(LanguageHelper.class);
	
	private static ResourceBundle errorRes_DE = ResourceBundle.getBundle("applicationResources", Locale.GERMAN);
	private static ResourceBundle guiRes_DE = ResourceBundle.getBundle("applicationResources", Locale.GERMAN);

    private static ResourceBundle errorRes_EN = ResourceBundle.getBundle("applicationResources_en", Locale.ENGLISH);
    private static ResourceBundle guiRes_EN = ResourceBundle.getBundle("applicationResources_en", Locale.ENGLISH);

    private static ResourceBundle errorLanguage() {
        try {
            ConfigurationProvider configurationProvider = ConfigurationProvider.getInstance();
            if (configurationProvider.getDefaultLanguage().equals("en")) {
                return errorRes_EN;
            } else {
                return errorRes_DE;
            }
        } catch (ConfigurationException e) {
            log.error("Configuration exception while getting ConfigurationProvider instance", e);
            return errorRes_DE;
        }
    }

    private static ResourceBundle guiLanguage() {
        try {
            ConfigurationProvider configurationProvider = ConfigurationProvider.getInstance();
            if (configurationProvider.getDefaultLanguage().equals("en")) {
                return guiRes_EN;
            } else {
                return guiRes_DE;
            }
        } catch (ConfigurationException e) {
            log.error("Configuration exception while getting ConfigurationProvider instance", e);
            return guiRes_DE;
        }
    }

    public static String getGUIString(String code, HttpServletRequest request) {
        return guiLanguage().getString(code);
	}
	
	public static String getGUIString(String code) {
		return guiLanguage().getString(code);
	}
	
	public static String getErrorString(String code, HttpServletRequest request) {
		return errorLanguage().getString(code);
	}
	
	public static String getErrorString(String code) {
		return errorLanguage().getString(code);
	}
	
	public static String getGUIString(String code, String parameter, HttpServletRequest request) {
        return MessageFormat.format(getGUIString(code, request), parameter);
	}
	
	public static String getErrorString(String code, Object[] parameter, HttpServletRequest request) {
				
		return MessageFormat.format(getGUIString(code, request), parameter);
	}
	
	public static String getErrorString(String code, Object[] parameter) {
		
		return MessageFormat.format(getGUIString(code), parameter);
	}
}