/*
    * Copyright 2010 James Pether Sörling
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *   http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *
   *	$Id$
   *  $HeadURL$
  */
  package com.hack23.cia.service.impl;
  
  import java.text.SimpleDateFormat;
  import java.util.ArrayList;
  import java.util.Date;
  import java.util.List;
  import java.util.Locale;
  
  import org.apache.commons.lang.StringUtils;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.security.access.annotation.Secured;
  import org.springframework.stereotype.Service;
  import org.springframework.transaction.annotation.Transactional;
  
  import com.hack23.cia.model.internal.application.system.impl.Agency;
  import com.hack23.cia.model.internal.application.system.impl.LanguageData;
  import com.hack23.cia.model.internal.application.system.impl.Portal;
  import com.hack23.cia.model.internal.application.system.impl.PortalType;
  import com.hack23.cia.service.api.ConfigurationManager;
  import com.hack23.cia.service.api.UserConfiguration;
  import com.hack23.cia.service.data.api.AgencyDAO;
  import com.hack23.cia.service.data.api.LanguageDataDAO;
  
  /**
   * The Class ConfigurationManagerImpl.
   */
  @Service("ConfigurationManager")
  @Transactional
  final class ConfigurationManagerImpl implements ConfigurationManager {
  
  	/** The Constant EXPECTED_LOCALE_LENGTH. */
  	private static final int EXPECTED_LOCALE_LENGTH = 2;
  
  	/** The agency dao. */
  	@Autowired
  	private AgencyDAO agencyDAO;
  
  	/** The language data dao. */
  	@Autowired
  	private LanguageDataDAO languageDataDAO;
  
  	/**
  	 * Instantiates a new configuration manager impl.
  	 */
  	public ConfigurationManagerImpl() {
  		super();
  	}
  
  	@Secured({"ROLE_ANONYMOUS","ROLE_USER", "ROLE_ADMIN" })
  	@Override
  	public UserConfiguration getUserConfiguration(final String url,final String locale) {
  		final Agency agency = agencyDAO.getAll().get(0);
  		Portal usePortal = null;
  		final LanguageData languageData = findLanguage(locale);
  		for (final Portal portal : agency.getPortals()) {
  			if ((usePortal == null && PortalType.DEFAULT == portal.getPortalType()) || url.contains(portal.getPortalName())) {
  				usePortal = portal;
  			}
  		}
  
  		return new UserConfigurationImpl(agency, usePortal,languageData);
  	}
  
  	/**
  	 * Find language.
  	 *
  	 * @param locale
  	 *            the locale
  	 * @return the language data
  	 */
  	private LanguageData findLanguage(final String locale) {
  		for (final LanguageData languageData : languageDataDAO.getAll()) {
  			if (languageData.getLanguageCode().equalsIgnoreCase(locale)) {
  				return languageData;
  			}
  		}
  		return null;
  	}
  
  	@Secured({ "ROLE_ADMIN" })
  	@Override
 	public void createDefaultConfigIfEmpty() {
 		if (agencyDAO.getAll().isEmpty()) {
 			final List<Portal> portals = new ArrayList<>();
 			final Portal defaulPortal = new Portal().withPortalType(PortalType.DEFAULT).withDescription("Global Portal")
 					.withPortalName("Default");
 			portals.add(defaulPortal);
 
 			final Portal domainPortal = new Portal().withPortalType(PortalType.DOMAIN).withDescription("Hack23.com")
 					.withPortalName("www.hack23.com");
 			portals.add(domainPortal);
 
 			final Agency agency = new Agency().withAgencyName("Citizen Intelligence Agency")
 					.withDescription("Tracking politicians like bugs");
 			agency.setPortals(portals);
 			agencyDAO.persist(agency);
 		}
 	}
 
 	@Secured({ "ROLE_ADMIN" })
 	@Override
 	public void createDefaultLanguagesIfEmpty() {
 		if (languageDataDAO.getAll().isEmpty()) {
 			languageDataDAO.persist(getSupportedLocalesLanguageData());
 
 		}
 	}
 
 	/**
 	 * Gets the supported locales language data.
 	 *
 	 * @return the supported locales language data
 	 */
 	private static List<LanguageData> getSupportedLocalesLanguageData() {
 		final List<LanguageData> languages = new ArrayList<>();
 
 		for (final Locale locale : SimpleDateFormat.getAvailableLocales()) {
 			final String localeString = locale.toString().trim();
 			if (locale.getDisplayCountry(Locale.ENGLISH).length() == 0 && !StringUtils.isEmpty(localeString)
 					&& localeString.length() == EXPECTED_LOCALE_LENGTH) {
 				languages.add(new LanguageData().withCreatedDate(new Date()).withLanguageCode(localeString)
 						.withLanguageName(locale.getDisplayName(Locale.ENGLISH)).withLanguageEnabled(false));
 
 			}
 		}
 
 		return languages;
 	}
 
 }